From 7dd06cdbd37c44a468117b0ffae0b54471268035 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Thu, 21 Feb 2008 16:18:43 +0800 Subject: [PATCH 001/923] [MAINTAINERS] use new kernel.org email for kernel development. Signed-off-by: Bryan Wu --- MAINTAINERS | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 36c7bc641db..8ef8c01460e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -767,14 +767,14 @@ S: Maintained BLACKFIN ARCHITECTURE P: Bryan Wu -M: bryan.wu@analog.com +M: cooloney@kernel.org L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only) W: http://blackfin.uclinux.org S: Supported BLACKFIN EMAC DRIVER P: Bryan Wu -M: bryan.wu@analog.com +M: cooloney@kernel.org L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only) W: http://blackfin.uclinux.org S: Supported -- GitLab From 7aa475cfb7030f491d040333a343d8c414765f1a Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 22 Feb 2008 16:01:50 +0800 Subject: [PATCH 002/923] [Blackfin] arch: fix bug add missing header file Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/mach-bf548/dma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/blackfin/mach-bf548/dma.c b/arch/blackfin/mach-bf548/dma.c index 374803a8d2e..f5479298bb7 100644 --- a/arch/blackfin/mach-bf548/dma.c +++ b/arch/blackfin/mach-bf548/dma.c @@ -27,6 +27,8 @@ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include + #include #include -- GitLab From 4d94bf674683b0560720bdea3b0c5d4716e1abec Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 22 Feb 2008 16:03:54 +0800 Subject: [PATCH 003/923] [Blackfin] arch: respect `make -s` when creating the asm/mach symlink Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/Makefile | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile index fe254f886a6..88ae549f7b2 100644 --- a/arch/blackfin/Makefile +++ b/arch/blackfin/Makefile @@ -98,8 +98,10 @@ drivers-$(CONFIG_OPROFILE) += arch/$(ARCH)/oprofile/ # them changed. We use .mach to indicate when they were updated # last, otherwise make uses the target directory mtime. + quiet_show_mach_symlink = echo ' SYMLINK include/asm-$(ARCH)/mach-$(MACHINE) -> include/asm-$(ARCH)/mach' +silent_show_mach_symlink = : include/asm-blackfin/.mach: $(wildcard include/config/arch/*.h) include/config/auto.conf - @echo ' SYMLINK include/asm-$(ARCH)/mach-$(MACHINE) -> include/asm-$(ARCH)/mach' + @$($(quiet)show_mach_symlink) ifneq ($(KBUILD_SRC),) $(Q)mkdir -p include/asm-$(ARCH) $(Q)ln -fsn $(srctree)/include/asm-$(ARCH)/mach-$(MACHINE) include/asm-$(ARCH)/mach -- GitLab From c63d4e64087aa6633c07964b5f028198c5bee762 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 22 Feb 2008 16:12:01 +0800 Subject: [PATCH 004/923] [Blackfin] arch: add handling for the mach symlink in the `make V=1` case Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile index 88ae549f7b2..75eba2ca788 100644 --- a/arch/blackfin/Makefile +++ b/arch/blackfin/Makefile @@ -98,6 +98,7 @@ drivers-$(CONFIG_OPROFILE) += arch/$(ARCH)/oprofile/ # them changed. We use .mach to indicate when they were updated # last, otherwise make uses the target directory mtime. + show_mach_symlink = : quiet_show_mach_symlink = echo ' SYMLINK include/asm-$(ARCH)/mach-$(MACHINE) -> include/asm-$(ARCH)/mach' silent_show_mach_symlink = : include/asm-blackfin/.mach: $(wildcard include/config/arch/*.h) include/config/auto.conf -- GitLab From 8929ecf84df529338d258f0ad9c1e553dfc921bc Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 22 Feb 2008 16:35:20 +0800 Subject: [PATCH 005/923] [Blackfin] arch: add fixed code to the memory map output Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/kernel/setup.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 8229b1090eb..febcbc527b4 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -514,6 +514,7 @@ static __init void memory_setup(void) printk(KERN_INFO "Kernel Managed Memory: %ldMB\n", _ramend >> 20); printk(KERN_INFO "Memory map:\n" + KERN_INFO " fixedcode = 0x%p-0x%p\n" KERN_INFO " text = 0x%p-0x%p\n" KERN_INFO " rodata = 0x%p-0x%p\n" KERN_INFO " bss = 0x%p-0x%p\n" @@ -527,7 +528,8 @@ static __init void memory_setup(void) #if DMA_UNCACHED_REGION > 0 KERN_INFO " DMA Zone = 0x%p-0x%p\n" #endif - , _stext, _etext, + , (void *)FIXED_CODE_START, (void *)FIXED_CODE_END, + _stext, _etext, __start_rodata, __end_rodata, __bss_start, __bss_stop, _sdata, _edata, -- GitLab From 32320ea0a63003a249773b5e3e459e66bb5fb8f8 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Fri, 22 Feb 2008 16:43:45 +0800 Subject: [PATCH 006/923] [Blackfin] arch: Update default config Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- arch/blackfin/configs/BF527-EZKIT_defconfig | 18 ++++++++---------- arch/blackfin/configs/BF533-EZKIT_defconfig | 6 ++---- arch/blackfin/configs/BF533-STAMP_defconfig | 6 ++---- arch/blackfin/configs/BF537-STAMP_defconfig | 6 +++--- arch/blackfin/configs/BF548-EZKIT_defconfig | 2 ++ arch/blackfin/configs/BF561-EZKIT_defconfig | 1 + 6 files changed, 18 insertions(+), 21 deletions(-) diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig index d59ee1530bd..ae320dcfede 100644 --- a/arch/blackfin/configs/BF527-EZKIT_defconfig +++ b/arch/blackfin/configs/BF527-EZKIT_defconfig @@ -1,7 +1,6 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.22.14 -# Thu Nov 29 17:32:47 2007 +# Linux kernel version: 2.6.22.16 # # CONFIG_MMU is not set # CONFIG_FPU is not set @@ -116,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y # Processor and Board Settings # # CONFIG_BF522 is not set +# CONFIG_BF523 is not set +# CONFIG_BF524 is not set # CONFIG_BF525 is not set +# CONFIG_BF526 is not set CONFIG_BF527=y # CONFIG_BF531 is not set # CONFIG_BF532 is not set @@ -306,6 +308,7 @@ CONFIG_BFIN_DCACHE=y # CONFIG_BFIN_WB is not set CONFIG_BFIN_WT=y CONFIG_L1_MAX_PIECE=16 +# CONFIG_MPU is not set # # Asynchonous Memory Configuration @@ -354,6 +357,7 @@ CONFIG_BINFMT_ZFLAT=y # Power management options # # CONFIG_PM is not set +# CONFIG_PM_WAKEUP_BY_GPIO is not set # # Networking @@ -496,7 +500,6 @@ CONFIG_MTD_CFI_I2=y # CONFIG_MTD_CFI_INTELEXT is not set # CONFIG_MTD_CFI_AMDSTD is not set # CONFIG_MTD_CFI_STAA is not set -CONFIG_MTD_MW320D=m CONFIG_MTD_RAM=y CONFIG_MTD_ROM=m # CONFIG_MTD_ABSENT is not set @@ -506,9 +509,6 @@ CONFIG_MTD_ROM=m # CONFIG_MTD_COMPLEX_MAPPINGS=y # CONFIG_MTD_PHYSMAP is not set -CONFIG_MTD_BF5xx=m -CONFIG_BFIN_FLASH_SIZE=0x400000 -CONFIG_EBIU_FLASH_BASE=0x20000000 # CONFIG_MTD_UCLINUX is not set # CONFIG_MTD_PLATRAM is not set @@ -684,7 +684,6 @@ CONFIG_INPUT_MISC=y # CONFIG_INPUT_POWERMATE is not set # CONFIG_INPUT_YEALINK is not set # CONFIG_INPUT_UINPUT is not set -# CONFIG_BF53X_PFBUTTONS is not set # CONFIG_TWI_KEYPAD is not set # @@ -702,12 +701,12 @@ CONFIG_INPUT_MISC=y # CONFIG_BF5xx_PPIFCD is not set # CONFIG_BFIN_SIMPLE_TIMER is not set # CONFIG_BF5xx_PPI is not set +CONFIG_BFIN_OTP=y +# CONFIG_BFIN_OTP_WRITE_ENABLE is not set # CONFIG_BFIN_SPORT is not set # CONFIG_BFIN_TIMER_LATENCY is not set # CONFIG_TWI_LCD is not set # CONFIG_AD5304 is not set -# CONFIG_BF5xx_TEA5764 is not set -# CONFIG_BF5xx_FBDMA is not set # CONFIG_VT is not set # CONFIG_SERIAL_NONSTANDARD is not set @@ -772,7 +771,6 @@ CONFIG_I2C_CHARDEV=m # # I2C Hardware Bus support # -# CONFIG_I2C_BLACKFIN_GPIO is not set CONFIG_I2C_BLACKFIN_TWI=m CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=50 # CONFIG_I2C_GPIO is not set diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig index 811711f59a2..9621caa60b5 100644 --- a/arch/blackfin/configs/BF533-EZKIT_defconfig +++ b/arch/blackfin/configs/BF533-EZKIT_defconfig @@ -322,10 +322,9 @@ CONFIG_PM=y # CONFIG_PM_LEGACY is not set # CONFIG_PM_DEBUG is not set # CONFIG_PM_SYSFS_DEPRECATED is not set -CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y +CONFIG_PM_BFIN_SLEEP_DEEPER=y +# CONFIG_PM_BFIN_SLEEP is not set # CONFIG_PM_WAKEUP_BY_GPIO is not set -# CONFIG_PM_WAKEUP_GPIO_API is not set -CONFIG_PM_WAKEUP_SIC_IWR=0x80 # # CPU Frequency scaling @@ -697,7 +696,6 @@ CONFIG_SERIAL_BFIN_DMA=y # CONFIG_SERIAL_BFIN_PIO is not set CONFIG_SERIAL_BFIN_UART0=y # CONFIG_BFIN_UART0_CTSRTS is not set -# CONFIG_SERIAL_BFIN_UART1 is not set CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_BFIN_SPORT is not set diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig index 198f4123af4..b51e76ce7f4 100644 --- a/arch/blackfin/configs/BF533-STAMP_defconfig +++ b/arch/blackfin/configs/BF533-STAMP_defconfig @@ -323,10 +323,9 @@ CONFIG_PM=y # CONFIG_PM_LEGACY is not set # CONFIG_PM_DEBUG is not set # CONFIG_PM_SYSFS_DEPRECATED is not set -CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y +CONFIG_PM_BFIN_SLEEP_DEEPER=y +# CONFIG_PM_BFIN_SLEEP is not set # CONFIG_PM_WAKEUP_BY_GPIO is not set -# CONFIG_PM_WAKEUP_GPIO_API is not set -CONFIG_PM_WAKEUP_SIC_IWR=0x80 # # CPU Frequency scaling @@ -714,7 +713,6 @@ CONFIG_SERIAL_BFIN_DMA=y # CONFIG_SERIAL_BFIN_PIO is not set CONFIG_SERIAL_BFIN_UART0=y # CONFIG_BFIN_UART0_CTSRTS is not set -# CONFIG_SERIAL_BFIN_UART1 is not set CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_BFIN_SPORT is not set diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig index b37ccc681e7..d45fa535dad 100644 --- a/arch/blackfin/configs/BF537-STAMP_defconfig +++ b/arch/blackfin/configs/BF537-STAMP_defconfig @@ -330,10 +330,9 @@ CONFIG_PM=y # CONFIG_PM_LEGACY is not set # CONFIG_PM_DEBUG is not set # CONFIG_PM_SYSFS_DEPRECATED is not set -CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y +CONFIG_PM_BFIN_SLEEP_DEEPER=y +# CONFIG_PM_BFIN_SLEEP is not set # CONFIG_PM_WAKEUP_BY_GPIO is not set -# CONFIG_PM_WAKEUP_GPIO_API is not set -CONFIG_PM_WAKEUP_SIC_IWR=0x8 # # CPU Frequency scaling @@ -1013,6 +1012,7 @@ CONFIG_SND_BFIN_AD73311_SE=4 CONFIG_SND_SOC_AC97_BUS=y CONFIG_SND_SOC=m CONFIG_SND_BF5XX_SOC=m +CONFIG_SND_MMAP_SUPPORT=y CONFIG_SND_BF5XX_SOC_AC97=m # CONFIG_SND_BF5XX_SOC_WM8750 is not set # CONFIG_SND_BF5XX_SOC_WM8731 is not set diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig index fd702161ef5..c9707f7665a 100644 --- a/arch/blackfin/configs/BF548-EZKIT_defconfig +++ b/arch/blackfin/configs/BF548-EZKIT_defconfig @@ -396,6 +396,7 @@ CONFIG_BINFMT_ZFLAT=y # Power management options # # CONFIG_PM is not set +# CONFIG_PM_WAKEUP_BY_GPIO is not set # # CPU Frequency scaling @@ -1075,6 +1076,7 @@ CONFIG_SND_VERBOSE_PROCFS=y CONFIG_SND_SOC_AC97_BUS=y CONFIG_SND_SOC=y CONFIG_SND_BF5XX_SOC=y +CONFIG_SND_MMAP_SUPPORT=y CONFIG_SND_BF5XX_SOC_AC97=y CONFIG_SND_BF5XX_SOC_BF548_EZKIT=y # CONFIG_SND_BF5XX_SOC_WM8750 is not set diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig index 8546994939f..4d8a6333130 100644 --- a/arch/blackfin/configs/BF561-EZKIT_defconfig +++ b/arch/blackfin/configs/BF561-EZKIT_defconfig @@ -367,6 +367,7 @@ CONFIG_BINFMT_ZFLAT=y # Power management options # # CONFIG_PM is not set +# CONFIG_PM_WAKEUP_BY_GPIO is not set # # Networking -- GitLab From edf056417d11fe9321ec15a55bd128e4f4c73796 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 25 Feb 2008 11:38:11 +0800 Subject: [PATCH 007/923] [Blackfin] arch: fix bug - set right partition size in the board files - set default u-boot partition size to 256k - modify the offset with the size change - use mtd defines (append for offset and full for size) where applicable rather than churning constants when we dont have to Signed-off-by: Grace Pan Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/mach-bf527/boards/ezkit.c | 10 +++++----- arch/blackfin/mach-bf533/boards/ezkit.c | 6 +++--- arch/blackfin/mach-bf533/boards/stamp.c | 10 +++++----- arch/blackfin/mach-bf537/boards/stamp.c | 12 ++++++------ arch/blackfin/mach-bf548/boards/ezkit.c | 10 +++++----- arch/blackfin/mach-bf561/boards/ezkit.c | 2 +- 6 files changed, 25 insertions(+), 25 deletions(-) diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c index 337515fba61..a28d5df20d7 100644 --- a/arch/blackfin/mach-bf527/boards/ezkit.c +++ b/arch/blackfin/mach-bf527/boards/ezkit.c @@ -180,8 +180,8 @@ static struct mtd_partition partition_info[] = { }, { .name = "File System", - .offset = 4 * SIZE_1M, - .size = (256 - 4) * SIZE_1M, + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, }, }; @@ -422,11 +422,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { }, { .name = "kernel", .size = 0xe0000, - .offset = 0x20000 + .offset = MTDPART_OFS_APPEND, }, { .name = "file system", - .size = 0x700000, - .offset = 0x00100000, + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, } }; diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c index 2b09aa39f56..73f76af73e9 100644 --- a/arch/blackfin/mach-bf533/boards/ezkit.c +++ b/arch/blackfin/mach-bf533/boards/ezkit.c @@ -99,11 +99,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { }, { .name = "kernel", .size = 0xe0000, - .offset = 0x20000 + .offset = MTDPART_OFS_APPEND, }, { .name = "file system", - .size = 0x700000, - .offset = 0x00100000, + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, } }; diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c index a645f6fd091..324317a8910 100644 --- a/arch/blackfin/mach-bf533/boards/stamp.c +++ b/arch/blackfin/mach-bf533/boards/stamp.c @@ -112,7 +112,7 @@ static struct platform_device net2272_bfin_device = { static struct mtd_partition stamp_partitions[] = { { .name = "Bootloader", - .size = 0x20000, + .size = 0x40000, .offset = 0, }, { .name = "Kernel", @@ -160,17 +160,17 @@ static struct platform_device stamp_flash_device = { static struct mtd_partition bfin_spi_flash_partitions[] = { { .name = "bootloader", - .size = 0x00020000, + .size = 0x00040000, .offset = 0, .mask_flags = MTD_CAP_ROM }, { .name = "kernel", .size = 0xe0000, - .offset = 0x20000 + .offset = MTDPART_OFS_APPEND, }, { .name = "file system", - .size = 0x700000, - .offset = 0x00100000, + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, } }; diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index 9e2277e0d25..9c6fa70c406 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -343,7 +343,7 @@ static struct platform_device net2272_bfin_device = { static struct mtd_partition stamp_partitions[] = { { .name = "Bootloader", - .size = 0x20000, + .size = 0x40000, .offset = 0, }, { .name = "Kernel", @@ -351,7 +351,7 @@ static struct mtd_partition stamp_partitions[] = { .offset = MTDPART_OFS_APPEND, }, { .name = "RootFS", - .size = 0x400000 - 0x20000 - 0xE0000 - 0x10000, + .size = 0x400000 - 0x40000 - 0xE0000 - 0x10000, .offset = MTDPART_OFS_APPEND, }, { .name = "MAC Address", @@ -391,17 +391,17 @@ static struct platform_device stamp_flash_device = { static struct mtd_partition bfin_spi_flash_partitions[] = { { .name = "bootloader", - .size = 0x00020000, + .size = 0x00040000, .offset = 0, .mask_flags = MTD_CAP_ROM }, { .name = "kernel", .size = 0xe0000, - .offset = 0x20000 + .offset = MTDPART_OFS_APPEND, }, { .name = "file system", - .size = 0x700000, - .offset = 0x00100000, + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, } }; diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c index 916e963e83b..47a4f5547cf 100644 --- a/arch/blackfin/mach-bf548/boards/ezkit.c +++ b/arch/blackfin/mach-bf548/boards/ezkit.c @@ -285,8 +285,8 @@ static struct mtd_partition partition_info[] = { }, { .name = "File System", - .offset = 4 * SIZE_1M, - .size = (256 - 4) * SIZE_1M, + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, }, }; @@ -333,7 +333,7 @@ static struct platform_device bf54x_sdh_device = { static struct mtd_partition ezkit_partitions[] = { { .name = "Bootloader", - .size = 0x20000, + .size = 0x40000, .offset = 0, }, { .name = "Kernel", @@ -381,8 +381,8 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { .mask_flags = MTD_CAP_ROM }, { .name = "linux kernel", - .size = 0x1c0000, - .offset = 0x40000 + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, } }; diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c index 43c1b098281..480b0a91a74 100644 --- a/arch/blackfin/mach-bf561/boards/ezkit.c +++ b/arch/blackfin/mach-bf561/boards/ezkit.c @@ -223,7 +223,7 @@ static struct platform_device bfin_uart_device = { static struct mtd_partition ezkit_partitions[] = { { .name = "Bootloader", - .size = 0x20000, + .size = 0x40000, .offset = 0, }, { .name = "Kernel", -- GitLab From cad2ab65dd1c7d65153ffccd71c90db028fd62f0 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 22 Feb 2008 17:01:31 +0800 Subject: [PATCH 008/923] [Blackfin] arch: add board resources for new simple-gpio char driver Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/mach-bf527/boards/ezkit.c | 15 +++++++++++++++ arch/blackfin/mach-bf533/boards/ezkit.c | 15 +++++++++++++++ arch/blackfin/mach-bf533/boards/stamp.c | 15 +++++++++++++++ arch/blackfin/mach-bf537/boards/stamp.c | 15 +++++++++++++++ arch/blackfin/mach-bf548/boards/ezkit.c | 15 +++++++++++++++ arch/blackfin/mach-bf561/boards/ezkit.c | 14 ++++++++++++++ 6 files changed, 89 insertions(+) diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c index a28d5df20d7..770056b0e68 100644 --- a/arch/blackfin/mach-bf527/boards/ezkit.c +++ b/arch/blackfin/mach-bf527/boards/ezkit.c @@ -818,6 +818,19 @@ static struct platform_device bfin_device_gpiokeys = { }; #endif +static struct resource bfin_gpios_resources = { + .start = 0, + .end = MAX_BLACKFIN_GPIOS - 1, + .flags = IORESOURCE_IRQ, +}; + +static struct platform_device bfin_gpios_device = { + .name = "simple-gpio", + .id = -1, + .num_resources = 1, + .resource = &bfin_gpios_resources, +}; + static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE) &bf5xx_nand_device, @@ -895,6 +908,8 @@ static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) &bfin_device_gpiokeys, #endif + + &bfin_gpios_device, }; static int __init stamp_init(void) diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c index 73f76af73e9..241b5a20a36 100644 --- a/arch/blackfin/mach-bf533/boards/ezkit.c +++ b/arch/blackfin/mach-bf533/boards/ezkit.c @@ -298,6 +298,19 @@ static struct platform_device bfin_device_gpiokeys = { }; #endif +static struct resource bfin_gpios_resources = { + .start = 0, + .end = MAX_BLACKFIN_GPIOS - 1, + .flags = IORESOURCE_IRQ, +}; + +static struct platform_device bfin_gpios_device = { + .name = "simple-gpio", + .id = -1, + .num_resources = 1, + .resource = &bfin_gpios_resources, +}; + #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) #include @@ -350,6 +363,8 @@ static struct platform_device *ezkit_devices[] __initdata = { #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) &i2c_gpio_device, #endif + + &bfin_gpios_device, }; static int __init ezkit_init(void) diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c index 324317a8910..c0f7d40fe12 100644 --- a/arch/blackfin/mach-bf533/boards/stamp.c +++ b/arch/blackfin/mach-bf533/boards/stamp.c @@ -457,6 +457,19 @@ static struct platform_device bfin_device_gpiokeys = { }; #endif +static struct resource bfin_gpios_resources = { + .start = 0, + .end = MAX_BLACKFIN_GPIOS - 1, + .flags = IORESOURCE_IRQ, +}; + +static struct platform_device bfin_gpios_device = { + .name = "simple-gpio", + .id = -1, + .num_resources = 1, + .resource = &bfin_gpios_resources, +}; + #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) #include @@ -518,6 +531,8 @@ static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) &i2c_gpio_device, #endif + + &bfin_gpios_device, &stamp_flash_device, }; diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index 9c6fa70c406..7a5629a0c37 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -128,6 +128,19 @@ static struct platform_device bfin_device_gpiokeys = { }; #endif +static struct resource bfin_gpios_resources = { + .start = 0, + .end = MAX_BLACKFIN_GPIOS - 1, + .flags = IORESOURCE_IRQ, +}; + +static struct platform_device bfin_gpios_device = { + .name = "simple-gpio", + .id = -1, + .num_resources = 1, + .resource = &bfin_gpios_resources, +}; + #if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) static struct resource bfin_pcmcia_cf_resources[] = { { @@ -821,6 +834,8 @@ static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) &bfin_device_gpiokeys, #endif + + &bfin_gpios_device, &stamp_flash_device, }; diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c index 47a4f5547cf..a0950c1fd80 100644 --- a/arch/blackfin/mach-bf548/boards/ezkit.c +++ b/arch/blackfin/mach-bf548/boards/ezkit.c @@ -594,6 +594,19 @@ static struct platform_device bfin_device_gpiokeys = { }; #endif +static struct resource bfin_gpios_resources = { + .start = 0, + .end = MAX_BLACKFIN_GPIOS - 1, + .flags = IORESOURCE_IRQ, +}; + +static struct platform_device bfin_gpios_device = { + .name = "simple-gpio", + .id = -1, + .num_resources = 1, + .resource = &bfin_gpios_resources, +}; + static struct platform_device *ezkit_devices[] __initdata = { #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) &rtc_device, @@ -646,6 +659,8 @@ static struct platform_device *ezkit_devices[] __initdata = { #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) &bfin_device_gpiokeys, #endif + + &bfin_gpios_device, &ezkit_flash_device, }; diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c index 480b0a91a74..d357f648d96 100644 --- a/arch/blackfin/mach-bf561/boards/ezkit.c +++ b/arch/blackfin/mach-bf561/boards/ezkit.c @@ -389,6 +389,19 @@ static struct platform_device bfin_device_gpiokeys = { }; #endif +static struct resource bfin_gpios_resources = { + .start = 0, + .end = MAX_BLACKFIN_GPIOS - 1, + .flags = IORESOURCE_IRQ, +}; + +static struct platform_device bfin_gpios_device = { + .name = "simple-gpio", + .id = -1, + .num_resources = 1, + .resource = &bfin_gpios_resources, +}; + #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) #include @@ -446,6 +459,7 @@ static struct platform_device *ezkit_devices[] __initdata = { &isp1362_hcd_device, #endif + &bfin_gpios_device, &ezkit_flash_device, }; -- GitLab From 549aaa8425b4a1de23cbddc650dac75b91204af6 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Mon, 25 Feb 2008 11:13:07 +0800 Subject: [PATCH 009/923] [Blackfin] arch: Fix bug - Setting peripheral_map only when dma channel is UART2/3. Singed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- arch/blackfin/kernel/bfin_dma_5xx.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index 5453bc3664f..8fd5d22cec3 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -105,13 +105,14 @@ int request_dma(unsigned int channel, char *device_id) mutex_unlock(&(dma_ch[channel].dmalock)); #ifdef CONFIG_BF54x - if (channel >= CH_UART2_RX && channel <= CH_UART3_TX && - strncmp(device_id, "BFIN_UART", 9) == 0) - dma_ch[channel].regs->peripheral_map |= - (channel - CH_UART2_RX + 0xC); - else - dma_ch[channel].regs->peripheral_map |= - (channel - CH_UART2_RX + 0x6); + if (channel >= CH_UART2_RX && channel <= CH_UART3_TX) { + if (strncmp(device_id, "BFIN_UART", 9) == 0) + dma_ch[channel].regs->peripheral_map |= + (channel - CH_UART2_RX + 0xC); + else + dma_ch[channel].regs->peripheral_map |= + (channel - CH_UART2_RX + 0x6); + } #endif dma_ch[channel].device_id = device_id; -- GitLab From 181afa94989f431e93eccd784c14c37ccb395a00 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 25 Feb 2008 11:42:17 +0800 Subject: [PATCH 010/923] [Blackfin] arch: grab mac address from OTP on BF527-EZKIT The bf527-ezkit stores the mac address in OTP, so grab it from there rather than flash Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/mach-bf527/boards/ezkit.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c index 770056b0e68..ab7a21faaa7 100644 --- a/arch/blackfin/mach-bf527/boards/ezkit.c +++ b/arch/blackfin/mach-bf527/boards/ezkit.c @@ -936,13 +936,18 @@ void native_machine_restart(char *cmd) bfin_gpio_reset_spi0_ssel1(); } -/* - * Currently the MAC address is saved in Flash by U-Boot - */ -#define FLASH_MAC 0x203f0000 void bfin_get_ether_addr(char *addr) { - *(u32 *)(&(addr[0])) = bfin_read32(FLASH_MAC); - *(u16 *)(&(addr[4])) = bfin_read16(FLASH_MAC + 4); + /* the MAC is stored in OTP memory page 0xDF */ + u32 ret; + u64 otp_mac; + u32 (*otp_read)(u32 page, u32 flags, u64 *page_content) = (void *)0xEF00001A; + + ret = otp_read(0xDF, 0x00, &otp_mac); + if (!(ret & 0x1)) { + char *otp_mac_p = (char *)&otp_mac; + for (ret = 0; ret < 6; ++ret) + addr[ret] = otp_mac_p[5 - ret]; + } } EXPORT_SYMBOL(bfin_get_ether_addr); -- GitLab From fe9ec9b9698b95ad21617c1db21eb0d1c040b93d Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 25 Feb 2008 12:04:57 +0800 Subject: [PATCH 011/923] [Blackfin] arch: fix bug - Move IWR Enable All to the end of init_arch_irq otherwise it fails Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/mach-common/ints-priority.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index 880595afe98..b321c4a92a6 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -969,15 +969,11 @@ int __init init_arch_irq(void) #if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) || defined(CONFIG_BF561) bfin_write_SIC_IMASK0(SIC_UNMASK_ALL); bfin_write_SIC_IMASK1(SIC_UNMASK_ALL); - bfin_write_SIC_IWR0(IWR_ENABLE_ALL); - bfin_write_SIC_IWR1(IWR_ENABLE_ALL); # ifdef CONFIG_BF54x bfin_write_SIC_IMASK2(SIC_UNMASK_ALL); - bfin_write_SIC_IWR2(IWR_ENABLE_ALL); # endif #else bfin_write_SIC_IMASK(SIC_UNMASK_ALL); - bfin_write_SIC_IWR(IWR_ENABLE_ALL); #endif SSYNC(); @@ -1106,6 +1102,16 @@ int __init init_arch_irq(void) IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 | IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | IMASK_IVGHW; +#if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) || defined(CONFIG_BF561) + bfin_write_SIC_IWR0(IWR_ENABLE_ALL); + bfin_write_SIC_IWR1(IWR_ENABLE_ALL); +# ifdef CONFIG_BF54x + bfin_write_SIC_IWR2(IWR_ENABLE_ALL); +# endif +#else + bfin_write_SIC_IWR(IWR_ENABLE_ALL); +#endif + return 0; } -- GitLab From 0db5d105cd62055ea7a3b7ddf7b7408ba65a07b9 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 25 Feb 2008 12:19:57 +0800 Subject: [PATCH 012/923] [Blackfin] arch: punt the simple ad5304 spi driver now that the generic spidev driver lets you do it from userspace Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/mach-bf527/boards/ezkit.c | 18 ------------------ arch/blackfin/mach-bf533/boards/stamp.c | 18 ------------------ .../blackfin/mach-bf537/boards/generic_board.c | 18 ------------------ arch/blackfin/mach-bf537/boards/stamp.c | 18 ------------------ 4 files changed, 72 deletions(-) diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c index ab7a21faaa7..cf4bc0d8335 100644 --- a/arch/blackfin/mach-bf527/boards/ezkit.c +++ b/arch/blackfin/mach-bf527/boards/ezkit.c @@ -484,13 +484,6 @@ static struct bfin5xx_spi_chip spi_si3xxx_chip_info = { }; #endif -#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) -static struct bfin5xx_spi_chip ad5304_chip_info = { - .enable_dma = 0, - .bits_per_word = 16, -}; -#endif - #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) static struct bfin5xx_spi_chip spi_ad7877_chip_info = { .enable_dma = 0, @@ -611,17 +604,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { .mode = SPI_MODE_3, }, #endif -#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) - { - .modalias = "ad5304_spi", - .max_speed_hz = 1250000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 0, - .chip_select = 2, - .platform_data = NULL, - .controller_data = &ad5304_chip_info, - .mode = SPI_MODE_2, - }, -#endif #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) { .modalias = "ad7877", diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c index c0f7d40fe12..b2ac4816ae6 100644 --- a/arch/blackfin/mach-bf533/boards/stamp.c +++ b/arch/blackfin/mach-bf533/boards/stamp.c @@ -212,13 +212,6 @@ static struct bfin5xx_spi_chip spi_si3xxx_chip_info = { }; #endif -#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) -static struct bfin5xx_spi_chip ad5304_chip_info = { - .enable_dma = 0, - .bits_per_word = 16, -}; -#endif - #if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) static struct bfin5xx_spi_chip spi_mmc_chip_info = { .enable_dma = 1, @@ -308,17 +301,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { }, #endif -#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) - { - .modalias = "ad5304_spi", - .max_speed_hz = 1000000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 0, - .chip_select = 2, - .platform_data = NULL, - .controller_data = &ad5304_chip_info, - .mode = SPI_MODE_2, - }, -#endif #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE) { .modalias = "spidev", diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c index 8a3397db1d2..c95395ba7bf 100644 --- a/arch/blackfin/mach-bf537/boards/generic_board.c +++ b/arch/blackfin/mach-bf537/boards/generic_board.c @@ -371,13 +371,6 @@ static struct bfin5xx_spi_chip spi_si3xxx_chip_info = { }; #endif -#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) -static struct bfin5xx_spi_chip ad5304_chip_info = { - .enable_dma = 0, - .bits_per_word = 16, -}; -#endif - #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) static struct bfin5xx_spi_chip spi_ad7877_chip_info = { .enable_dma = 0, @@ -483,17 +476,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { .mode = SPI_MODE_3, }, #endif -#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) - { - .modalias = "ad5304_spi", - .max_speed_hz = 1250000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 0, - .chip_select = 2, - .platform_data = NULL, - .controller_data = &ad5304_chip_info, - .mode = SPI_MODE_2, - }, -#endif #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) { .modalias = "ad7877", diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index 7a5629a0c37..ea83148993d 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -472,13 +472,6 @@ static struct bfin5xx_spi_chip spi_si3xxx_chip_info = { }; #endif -#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) -static struct bfin5xx_spi_chip ad5304_chip_info = { - .enable_dma = 0, - .bits_per_word = 16, -}; -#endif - #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) static struct bfin5xx_spi_chip spi_ad7877_chip_info = { .enable_dma = 0, @@ -591,17 +584,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { .mode = SPI_MODE_3, }, #endif -#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) - { - .modalias = "ad5304_spi", - .max_speed_hz = 1250000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 0, - .chip_select = 2, - .platform_data = NULL, - .controller_data = &ad5304_chip_info, - .mode = SPI_MODE_2, - }, -#endif #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) { .modalias = "ad7877", -- GitLab From d45118b14bf04e124e4d875b136d5c1c4df97d57 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 25 Feb 2008 12:24:44 +0800 Subject: [PATCH 013/923] [Blackfin] arch: make sure we export the _bfin_swrst symbol as modules (like the watchdog) need it Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/kernel/setup.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index febcbc527b4..2255c289a71 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -32,6 +32,7 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices); u16 _bfin_swrst; +EXPORT_SYMBOL(_bfin_swrst); unsigned long memory_start, memory_end, physical_mem_end; unsigned long reserved_mem_dcache_on; -- GitLab From ce3b7bb61c120e1e4e70e892ec281ef2bb81d6fa Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 25 Feb 2008 13:48:47 +0800 Subject: [PATCH 014/923] [Blackfin] arch: fix bug - linux-2.6.24 (delayed) disable IRQ feature not functional for handle_simple_irq Bypass delayed disable feature by implementing chip->disable and chip->enable. http://lkml.org/lkml/2008/2/19/115 Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/mach-common/ints-priority.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index b321c4a92a6..22bcdef00e0 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -213,6 +213,9 @@ static struct irq_chip bfin_internal_irqchip = { .ack = ack_noop, .mask = bfin_internal_mask_irq, .unmask = bfin_internal_unmask_irq, + .mask_ack = bfin_internal_mask_irq, + .disable = bfin_internal_mask_irq, + .enable = bfin_internal_unmask_irq, #ifdef CONFIG_PM .set_wake = bfin_internal_set_wake, #endif -- GitLab From 464abc5de6ea8f4af1c1246e0d1ea7b07362db43 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 25 Feb 2008 13:50:20 +0800 Subject: [PATCH 015/923] [Blackfin] arch: Cleanup abd Simplify: - Simplify init_arch_irq - Make code more readable - Remove useless SSYNCs - Fix comments Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/mach-common/ints-priority.c | 157 +++++++--------------- include/asm-blackfin/irq.h | 2 + 2 files changed, 53 insertions(+), 106 deletions(-) diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index 22bcdef00e0..225ef14af75 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -74,7 +74,7 @@ unsigned long bfin_sic_iwr[3]; /* Up to 3 SIC_IWRx registers */ #endif struct ivgx { - /* irq number for request_irq, available in mach-bf533/irq.h */ + /* irq number for request_irq, available in mach-bf5xx/irq.h */ unsigned int irqno; /* corresponding bit in the SIC_ISR register */ unsigned int isrflag; @@ -86,7 +86,6 @@ struct ivg_slice { struct ivgx *istop; } ivg7_13[IVG13 - IVG7 + 1]; -static void search_IAR(void); /* * Search SIC_IAR and fill tables with the irqvalues @@ -120,10 +119,10 @@ static void __init search_IAR(void) } /* - * This is for BF533 internal IRQs + * This is for core internal IRQs */ -static void ack_noop(unsigned int irq) +static void bfin_ack_noop(unsigned int irq) { /* Dummy function. */ } @@ -156,11 +155,11 @@ static void bfin_internal_mask_irq(unsigned int irq) { #ifdef CONFIG_BF53x bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() & - ~(1 << (irq - (IRQ_CORETMR + 1)))); + ~(1 << SIC_SYSIRQ(irq))); #else unsigned mask_bank, mask_bit; - mask_bank = (irq - (IRQ_CORETMR + 1)) / 32; - mask_bit = (irq - (IRQ_CORETMR + 1)) % 32; + mask_bank = SIC_SYSIRQ(irq) / 32; + mask_bit = SIC_SYSIRQ(irq) % 32; bfin_write_SIC_IMASK(mask_bank, bfin_read_SIC_IMASK(mask_bank) & ~(1 << mask_bit)); #endif @@ -171,11 +170,11 @@ static void bfin_internal_unmask_irq(unsigned int irq) { #ifdef CONFIG_BF53x bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() | - (1 << (irq - (IRQ_CORETMR + 1)))); + (1 << SIC_SYSIRQ(irq))); #else unsigned mask_bank, mask_bit; - mask_bank = (irq - (IRQ_CORETMR + 1)) / 32; - mask_bit = (irq - (IRQ_CORETMR + 1)) % 32; + mask_bank = SIC_SYSIRQ(irq) / 32; + mask_bit = SIC_SYSIRQ(irq) % 32; bfin_write_SIC_IMASK(mask_bank, bfin_read_SIC_IMASK(mask_bank) | (1 << mask_bit)); #endif @@ -187,8 +186,8 @@ int bfin_internal_set_wake(unsigned int irq, unsigned int state) { unsigned bank, bit; unsigned long flags; - bank = (irq - (IRQ_CORETMR + 1)) / 32; - bit = (irq - (IRQ_CORETMR + 1)) % 32; + bank = SIC_SYSIRQ(irq) / 32; + bit = SIC_SYSIRQ(irq) % 32; local_irq_save(flags); @@ -204,13 +203,13 @@ int bfin_internal_set_wake(unsigned int irq, unsigned int state) #endif static struct irq_chip bfin_core_irqchip = { - .ack = ack_noop, + .ack = bfin_ack_noop, .mask = bfin_core_mask_irq, .unmask = bfin_core_unmask_irq, }; static struct irq_chip bfin_internal_irqchip = { - .ack = ack_noop, + .ack = bfin_ack_noop, .mask = bfin_internal_mask_irq, .unmask = bfin_internal_unmask_irq, .mask_ack = bfin_internal_mask_irq, @@ -224,38 +223,23 @@ static struct irq_chip bfin_internal_irqchip = { #ifdef BF537_GENERIC_ERROR_INT_DEMUX static int error_int_mask; -static void bfin_generic_error_ack_irq(unsigned int irq) -{ - -} - static void bfin_generic_error_mask_irq(unsigned int irq) { error_int_mask &= ~(1L << (irq - IRQ_PPI_ERROR)); - if (!error_int_mask) { - local_irq_disable(); - bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() & - ~(1 << (IRQ_GENERIC_ERROR - - (IRQ_CORETMR + 1)))); - SSYNC(); - local_irq_enable(); - } + if (!error_int_mask) + bfin_internal_mask_irq(IRQ_GENERIC_ERROR); } static void bfin_generic_error_unmask_irq(unsigned int irq) { - local_irq_disable(); - bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() | 1 << - (IRQ_GENERIC_ERROR - (IRQ_CORETMR + 1))); - SSYNC(); - local_irq_enable(); - + bfin_internal_unmask_irq(IRQ_GENERIC_ERROR); error_int_mask |= 1L << (irq - IRQ_PPI_ERROR); } static struct irq_chip bfin_generic_error_irqchip = { - .ack = bfin_generic_error_ack_irq, + .ack = bfin_ack_noop, + .mask_ack = bfin_generic_error_mask_irq, .mask = bfin_generic_error_mask_irq, .unmask = bfin_generic_error_unmask_irq, }; @@ -611,7 +595,7 @@ static struct pin_int_t *pint[NR_PINT_SYS_IRQS] = { (struct pin_int_t *)PINT3_MASK_SET, }; -unsigned short get_irq_base(u8 bank, u8 bmap) +inline unsigned short get_irq_base(u8 bank, u8 bmap) { u16 irq_base; @@ -978,7 +962,6 @@ int __init init_arch_irq(void) #else bfin_write_SIC_IMASK(SIC_UNMASK_ALL); #endif - SSYNC(); local_irq_disable(); @@ -1000,90 +983,53 @@ int __init init_arch_irq(void) set_irq_chip(irq, &bfin_core_irqchip); else set_irq_chip(irq, &bfin_internal_irqchip); -#ifdef BF537_GENERIC_ERROR_INT_DEMUX - if (irq != IRQ_GENERIC_ERROR) { -#endif - switch (irq) { + switch (irq) { #if defined(CONFIG_BF53x) - case IRQ_PROG_INTA: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; + case IRQ_PROG_INTA: # if defined(BF537_FAMILY) && !(defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)) - case IRQ_MAC_RX: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; + case IRQ_MAC_RX: # endif #elif defined(CONFIG_BF54x) - case IRQ_PINT0: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; - case IRQ_PINT1: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; - case IRQ_PINT2: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; - case IRQ_PINT3: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; + case IRQ_PINT0: + case IRQ_PINT1: + case IRQ_PINT2: + case IRQ_PINT3: #elif defined(CONFIG_BF52x) - case IRQ_PORTF_INTA: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; - case IRQ_PORTG_INTA: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; - case IRQ_PORTH_INTA: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; + case IRQ_PORTF_INTA: + case IRQ_PORTG_INTA: + case IRQ_PORTH_INTA: #elif defined(CONFIG_BF561) - case IRQ_PROG0_INTA: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; - case IRQ_PROG1_INTA: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; - case IRQ_PROG2_INTA: - set_irq_chained_handler(irq, - bfin_demux_gpio_irq); - break; + case IRQ_PROG0_INTA: + case IRQ_PROG1_INTA: + case IRQ_PROG2_INTA: #endif - default: - set_irq_handler(irq, handle_simple_irq); - break; - } - + set_irq_chained_handler(irq, + bfin_demux_gpio_irq); + break; #ifdef BF537_GENERIC_ERROR_INT_DEMUX - } else { + case IRQ_GENERIC_ERROR: set_irq_handler(irq, bfin_demux_error_irq); - } + + break; #endif + default: + set_irq_handler(irq, handle_simple_irq); + break; + } } + #ifdef BF537_GENERIC_ERROR_INT_DEMUX - for (irq = IRQ_PPI_ERROR; irq <= IRQ_UART1_ERROR; irq++) { - set_irq_chip(irq, &bfin_generic_error_irqchip); - set_irq_handler(irq, handle_level_irq); - } + for (irq = IRQ_PPI_ERROR; irq <= IRQ_UART1_ERROR; irq++) + set_irq_chip_and_handler(irq, &bfin_generic_error_irqchip, + handle_level_irq); #endif - for (irq = GPIO_IRQ_BASE; irq < NR_IRQS; irq++) { + /* if configured as edge, then will be changed to do_edge_IRQ */ + for (irq = GPIO_IRQ_BASE; irq < NR_IRQS; irq++) + set_irq_chip_and_handler(irq, &bfin_gpio_irqchip, + handle_level_irq); - set_irq_chip(irq, &bfin_gpio_irqchip); - /* if configured as edge, then will be changed to do_edge_IRQ */ - set_irq_handler(irq, handle_level_irq); - } bfin_write_IMASK(0); CSYNC(); @@ -1131,7 +1077,6 @@ void do_irq(int vec, struct pt_regs *fp) #if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) || defined(CONFIG_BF561) unsigned long sic_status[3]; - SSYNC(); sic_status[0] = bfin_read_SIC_ISR0() & bfin_read_SIC_IMASK0(); sic_status[1] = bfin_read_SIC_ISR1() & bfin_read_SIC_IMASK1(); #ifdef CONFIG_BF54x @@ -1147,7 +1092,7 @@ void do_irq(int vec, struct pt_regs *fp) } #else unsigned long sic_status; - SSYNC(); + sic_status = bfin_read_SIC_IMASK() & bfin_read_SIC_ISR(); for (;; ivg++) { diff --git a/include/asm-blackfin/irq.h b/include/asm-blackfin/irq.h index 65480dab244..86b67834354 100644 --- a/include/asm-blackfin/irq.h +++ b/include/asm-blackfin/irq.h @@ -67,4 +67,6 @@ static __inline__ int irq_canonicalize(int irq) #define NO_IRQ ((unsigned int)(-1)) #endif +#define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1)) + #endif /* _BFIN_IRQ_H_ */ -- GitLab From 9253d02041c60d732713c40c59b49fbde8f3bc1c Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 25 Feb 2008 14:27:28 +0800 Subject: [PATCH 016/923] [Blackfin] arch: Remove DPMC char driver option Remove redundant/obsolete/dead code from DPMC driver Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/mach-common/dpmc.S | 131 ------------------------------- 1 file changed, 131 deletions(-) diff --git a/arch/blackfin/mach-common/dpmc.S b/arch/blackfin/mach-common/dpmc.S index b80ddd8b232..fc9f6eb9018 100644 --- a/arch/blackfin/mach-common/dpmc.S +++ b/arch/blackfin/mach-common/dpmc.S @@ -33,137 +33,6 @@ .text -ENTRY(_unmask_wdog_wakeup_evt) - [--SP] = ( R7:0, P5:0 ); -#if defined(CONFIG_BF561) - P0.H = hi(SICA_IWR1); - P0.L = lo(SICA_IWR1); -#elif defined(CONFIG_BF54x) || defined(CONFIG_BF52x) - P0.h = HI(SIC_IWR0); - P0.l = LO(SIC_IWR0); -#else - P0.h = HI(SIC_IWR); - P0.l = LO(SIC_IWR); -#endif - R7 = [P0]; -#if defined(CONFIG_BF561) - BITSET(R7, 27); -#else - BITSET(R7,(IRQ_WATCH - IVG7)); -#endif - [P0] = R7; - SSYNC; - - ( R7:0, P5:0 ) = [SP++]; - RTS; - -.LWRITE_TO_STAT: - /* When watch dog timer is enabled, a write to STAT will load the - * contents of CNT to STAT - */ - R7 = 0x0000(z); -#if defined(CONFIG_BF561) - P0.h = HI(WDOGA_STAT); - P0.l = LO(WDOGA_STAT); -#else - P0.h = HI(WDOG_STAT); - P0.l = LO(WDOG_STAT); -#endif - [P0] = R7; - SSYNC; - JUMP .LSKIP_WRITE_TO_STAT; - -ENTRY(_program_wdog_timer) - [--SP] = ( R7:0, P5:0 ); -#if defined(CONFIG_BF561) - P0.h = HI(WDOGA_CNT); - P0.l = LO(WDOGA_CNT); -#else - P0.h = HI(WDOG_CNT); - P0.l = LO(WDOG_CNT); -#endif - [P0] = R0; - SSYNC; - -#if defined(CONFIG_BF561) - P0.h = HI(WDOGA_CTL); - P0.l = LO(WDOGA_CTL); -#else - P0.h = HI(WDOG_CTL); - P0.l = LO(WDOG_CTL); -#endif - R7 = W[P0](Z); - CC = BITTST(R7,1); - if !CC JUMP .LWRITE_TO_STAT; - CC = BITTST(R7,2); - if !CC JUMP .LWRITE_TO_STAT; - -.LSKIP_WRITE_TO_STAT: -#if defined(CONFIG_BF561) - P0.h = HI(WDOGA_CTL); - P0.l = LO(WDOGA_CTL); -#else - P0.h = HI(WDOG_CTL); - P0.l = LO(WDOG_CTL); -#endif - R7 = W[P0](Z); - BITCLR(R7,1); /* Enable GP event */ - BITSET(R7,2); - W[P0] = R7.L; - SSYNC; - NOP; - - R7 = W[P0](Z); - BITCLR(R7,4); /* Enable the wdog counter */ - W[P0] = R7.L; - SSYNC; - - ( R7:0, P5:0 ) = [SP++]; - RTS; - -ENTRY(_clear_wdog_wakeup_evt) - [--SP] = ( R7:0, P5:0 ); - -#if defined(CONFIG_BF561) - P0.h = HI(WDOGA_CTL); - P0.l = LO(WDOGA_CTL); -#else - P0.h = HI(WDOG_CTL); - P0.l = LO(WDOG_CTL); -#endif - R7 = 0x0AD6(Z); - W[P0] = R7.L; - SSYNC; - - R7 = W[P0](Z); - BITSET(R7,15); - W[P0] = R7.L; - SSYNC; - - R7 = W[P0](Z); - BITSET(R7,1); - BITSET(R7,2); - W[P0] = R7.L; - SSYNC; - - ( R7:0, P5:0 ) = [SP++]; - RTS; - -ENTRY(_disable_wdog_timer) - [--SP] = ( R7:0, P5:0 ); -#if defined(CONFIG_BF561) - P0.h = HI(WDOGA_CTL); - P0.l = LO(WDOGA_CTL); -#else - P0.h = HI(WDOG_CTL); - P0.l = LO(WDOG_CTL); -#endif - R7 = 0xAD6(Z); - W[P0] = R7.L; - SSYNC; - ( R7:0, P5:0 ) = [SP++]; - RTS; - #if !defined(CONFIG_BF561) .section .l1.text -- GitLab From 3927819d511f5b5855e6f2345f24e7b04e4fd2f5 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 25 Feb 2008 14:39:50 +0800 Subject: [PATCH 017/923] [Blackfin] arch: Fix CONFIG_PM support for BF561 Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/mach-common/dpmc.S | 6 ++---- include/asm-blackfin/mach-bf561/blackfin.h | 3 ++- 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/blackfin/mach-common/dpmc.S b/arch/blackfin/mach-common/dpmc.S index fc9f6eb9018..9d45aa3265b 100644 --- a/arch/blackfin/mach-common/dpmc.S +++ b/arch/blackfin/mach-common/dpmc.S @@ -31,9 +31,6 @@ #include #include -.text - -#if !defined(CONFIG_BF561) .section .l1.text @@ -328,10 +325,12 @@ ENTRY(_set_sic_iwr) RTS; ENTRY(_set_rtc_istat) +#ifndef CONFIG_BF561 P0.H = hi(RTC_ISTAT); P0.L = lo(RTC_ISTAT); w[P0] = R0.L; SSYNC; +#endif RTS; ENTRY(_test_pll_locked) @@ -342,4 +341,3 @@ ENTRY(_test_pll_locked) CC = BITTST(R0,5); IF !CC JUMP 1b; RTS; -#endif diff --git a/include/asm-blackfin/mach-bf561/blackfin.h b/include/asm-blackfin/mach-bf561/blackfin.h index 362617f9384..3a16df2c86d 100644 --- a/include/asm-blackfin/mach-bf561/blackfin.h +++ b/include/asm-blackfin/mach-bf561/blackfin.h @@ -49,7 +49,8 @@ #define bfin_read_FIO_INEN() bfin_read_FIO0_INEN() #define bfin_write_FIO_INEN(val) bfin_write_FIO0_INEN(val) - +#define SIC_IWR0 SICA_IWR0 +#define SIC_IWR1 SICA_IWR1 #define SIC_IAR0 SICA_IAR0 #define bfin_write_SIC_IMASK0 bfin_write_SICA_IMASK0 #define bfin_write_SIC_IMASK1 bfin_write_SICA_IMASK1 -- GitLab From fee40119a2b2abbe239438b74052854db6f3444d Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 25 Feb 2008 15:06:07 +0800 Subject: [PATCH 018/923] [Blackfin] arch: make sure we have proper description/copyright/license lines Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/kernel/gptimers.c | 8 ++++---- include/asm-blackfin/gptimers.h | 7 +++---- 2 files changed, 7 insertions(+), 8 deletions(-) diff --git a/arch/blackfin/kernel/gptimers.c b/arch/blackfin/kernel/gptimers.c index 5cf4bdb1df3..1904d8b5332 100644 --- a/arch/blackfin/kernel/gptimers.c +++ b/arch/blackfin/kernel/gptimers.c @@ -1,9 +1,9 @@ /* - * bfin_gptimers.c - derived from bf53x_timers.c - * Driver for General Purpose Timer functions on the Blackfin processor + * gptimers.c - Blackfin General Purpose Timer core API * - * Copyright (C) 2005 John DeHority - * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de) + * Copyright (c) 2005-2008 Analog Devices Inc. + * Copyright (C) 2005 John DeHority + * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de) * * Licensed under the GPLv2. */ diff --git a/include/asm-blackfin/gptimers.h b/include/asm-blackfin/gptimers.h index 8265ea473d5..4f318f1fd2d 100644 --- a/include/asm-blackfin/gptimers.h +++ b/include/asm-blackfin/gptimers.h @@ -1,12 +1,11 @@ /* - * include/asm/bf5xx_timers.h - * - * This file contains the major Data structures and constants - * used for General Purpose Timer Implementation in BF5xx + * gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes * + * Copyright (c) 2005-2008 Analog Devices Inc. * Copyright (C) 2005 John DeHority * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de) * + * Licensed under the GPL-2. */ #ifndef _BLACKFIN_TIMERS_H_ -- GitLab From 40edad3efadb3aa486c7a5452401c4de10902496 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 25 Feb 2008 15:23:30 +0800 Subject: [PATCH 019/923] [Blackfin] arch: add bfin_clear_PPIx_STATUS() helper funcs like we have for other parts Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- include/asm-blackfin/mach-bf561/cdefBF561.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/asm-blackfin/mach-bf561/cdefBF561.h b/include/asm-blackfin/mach-bf561/cdefBF561.h index d667816486c..1bc8d2f89cc 100644 --- a/include/asm-blackfin/mach-bf561/cdefBF561.h +++ b/include/asm-blackfin/mach-bf561/cdefBF561.h @@ -559,6 +559,7 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val) #define bfin_write_PPI0_CONTROL(val) bfin_write16(PPI0_CONTROL,val) #define bfin_read_PPI0_STATUS() bfin_read16(PPI0_STATUS) #define bfin_write_PPI0_STATUS(val) bfin_write16(PPI0_STATUS,val) +#define bfin_clear_PPI0_STATUS() bfin_read_PPI0_STATUS() #define bfin_read_PPI0_COUNT() bfin_read16(PPI0_COUNT) #define bfin_write_PPI0_COUNT(val) bfin_write16(PPI0_COUNT,val) #define bfin_read_PPI0_DELAY() bfin_read16(PPI0_DELAY) @@ -570,6 +571,7 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val) #define bfin_write_PPI1_CONTROL(val) bfin_write16(PPI1_CONTROL,val) #define bfin_read_PPI1_STATUS() bfin_read16(PPI1_STATUS) #define bfin_write_PPI1_STATUS(val) bfin_write16(PPI1_STATUS,val) +#define bfin_clear_PPI1_STATUS() bfin_read_PPI1_STATUS() #define bfin_read_PPI1_COUNT() bfin_read16(PPI1_COUNT) #define bfin_write_PPI1_COUNT(val) bfin_write16(PPI1_COUNT,val) #define bfin_read_PPI1_DELAY() bfin_read16(PPI1_DELAY) -- GitLab From 8b07a2a1e58beb60c4a40a46251f053d64e1eb36 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 29 Feb 2008 11:57:35 +0800 Subject: [PATCH 020/923] [Blackfin] arch: handle the most common L1 shrinkage case (L1 does not exist for a part) so that any parts labeled for L1 instead get placed into external memory sections Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/kernel/vmlinux.lds.S | 34 ++++++++++++++++++++++++------ 1 file changed, 27 insertions(+), 7 deletions(-) diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S index aed832540b3..cb01a9de268 100644 --- a/arch/blackfin/kernel/vmlinux.lds.S +++ b/arch/blackfin/kernel/vmlinux.lds.S @@ -147,44 +147,64 @@ SECTIONS __l1_lma_start = .; +#if L1_CODE_LENGTH +# define LDS_L1_CODE *(.l1.text) +#else +# define LDS_L1_CODE +#endif .text_l1 L1_CODE_START : AT(LOADADDR(.init.ramfs) + SIZEOF(.init.ramfs)) { . = ALIGN(4); __stext_l1 = .; - *(.l1.text) - + LDS_L1_CODE . = ALIGN(4); __etext_l1 = .; } +#if L1_DATA_A_LENGTH +# define LDS_L1_A_DATA *(.l1.data) +# define LDS_L1_A_BSS *(.l1.bss) +# define LDS_L1_A_CACHE *(.data_l1.cacheline_aligned) +#else +# define LDS_L1_A_DATA +# define LDS_L1_A_BSS +# define LDS_L1_A_CACHE +#endif .data_l1 L1_DATA_A_START : AT(LOADADDR(.text_l1) + SIZEOF(.text_l1)) { . = ALIGN(4); __sdata_l1 = .; - *(.l1.data) + LDS_L1_A_DATA __edata_l1 = .; . = ALIGN(4); __sbss_l1 = .; - *(.l1.bss) + LDS_L1_A_BSS . = ALIGN(32); - *(.data_l1.cacheline_aligned) + LDS_L1_A_CACHE . = ALIGN(4); __ebss_l1 = .; } +#if L1_DATA_B_LENGTH +# define LDS_L1_B_DATA *(.l1.data.B) +# define LDS_L1_B_BSS *(.l1.bss.B) +#else +# define LDS_L1_B_DATA +# define LDS_L1_B_BSS +#endif .data_b_l1 L1_DATA_B_START : AT(LOADADDR(.data_l1) + SIZEOF(.data_l1)) { . = ALIGN(4); __sdata_b_l1 = .; - *(.l1.data.B) + LDS_L1_B_DATA __edata_b_l1 = .; . = ALIGN(4); __sbss_b_l1 = .; - *(.l1.bss.B) + LDS_L1_B_BSS . = ALIGN(4); __ebss_b_l1 = .; -- GitLab From c051489df8b027238ff22d64d4e01ede3ad77dd5 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Fri, 29 Feb 2008 12:02:10 +0800 Subject: [PATCH 021/923] [Blackfin] arch: kill section mismatch warnings Signed-off-by: Bryan Wu --- arch/blackfin/mach-bf548/head.S | 9 +++++++-- arch/blackfin/mm/init.c | 4 ++-- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S index 74fe258421a..46222a75321 100644 --- a/arch/blackfin/mach-bf548/head.S +++ b/arch/blackfin/mach-bf548/head.S @@ -28,6 +28,7 @@ */ #include +#include #include #include #if CONFIG_BFIN_KERNEL_CLOCK @@ -44,10 +45,9 @@ #define INITIAL_STACK 0xFFB01000 -.text +__INIT ENTRY(__start) -ENTRY(__stext) /* R0: argument of command line string, passed from uboot, save it */ R7 = R0; /* Enable Cycle Counter and Nesting Of Interrupts */ @@ -213,6 +213,7 @@ ENTRY(__stext) .LWAIT_HERE: jump .LWAIT_HERE; +ENDPROC(__start) ENTRY(_real_start) [ -- sp ] = reti; @@ -285,6 +286,9 @@ ENTRY(_real_start) call _start_kernel; .L_exit: jump.s .L_exit; +ENDPROC(_real_start) + +__FINIT .section .l1.text #if CONFIG_BFIN_KERNEL_CLOCK @@ -450,6 +454,7 @@ ENTRY(_start_dma_code) SSYNC; RTS; +ENDPROC(_start_dma_code) #endif /* CONFIG_BFIN_KERNEL_CLOCK */ .data diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index 1f516c55bde..ec3141fefd2 100644 --- a/arch/blackfin/mm/init.c +++ b/arch/blackfin/mm/init.c @@ -181,7 +181,7 @@ void __init mem_init(void) } } -static __init void free_init_pages(const char *what, unsigned long begin, unsigned long end) +static void __init free_init_pages(const char *what, unsigned long begin, unsigned long end) { unsigned long addr; /* next to check that the page we free is not a partial page */ @@ -203,7 +203,7 @@ void __init free_initrd_mem(unsigned long start, unsigned long end) } #endif -void __init free_initmem(void) +void __init_refok free_initmem(void) { #if defined CONFIG_RAMKERNEL && !defined CONFIG_MPU free_init_pages("unused kernel memory", -- GitLab From 759eb040901af60d8a1a2b59b93805521b156cbb Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Wed, 21 Nov 2007 17:00:32 +0800 Subject: [PATCH 022/923] Blackfin Serial driver: Fix bug - serial driver in PIO mode cant handle input very quickly Output as many bytes as possible in PIO tx handler. This reduce the number of tx interrupts and shorten the delay to handle rx interrupt. So, rx overrun disappears. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 62 +++++++++------------------------------ 1 file changed, 14 insertions(+), 48 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index ac2a3ef28d5..e059475c91a 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -74,7 +74,6 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart); #else static void bfin_serial_do_work(struct work_struct *work); static void bfin_serial_tx_chars(struct bfin_serial_port *uart); -static void local_put_char(struct bfin_serial_port *uart, char ch); #endif static void bfin_serial_mctrl_check(struct bfin_serial_port *uart); @@ -85,6 +84,9 @@ static void bfin_serial_mctrl_check(struct bfin_serial_port *uart); static void bfin_serial_stop_tx(struct uart_port *port) { struct bfin_serial_port *uart = (struct bfin_serial_port *)port; +#ifndef CONFIG_BF54x + unsigned short ier; +#endif while (!(UART_GET_LSR(uart) & TEMT)) continue; @@ -100,8 +102,6 @@ static void bfin_serial_stop_tx(struct uart_port *port) UART_PUT_LSR(uart, TFI); UART_CLEAR_IER(uart, ETBEI); #else - unsigned short ier; - ier = UART_GET_IER(uart); ier &= ~ETBEI; UART_PUT_IER(uart, ier); @@ -210,23 +210,6 @@ int kgdb_get_debug_char(void) #endif #ifdef CONFIG_SERIAL_BFIN_PIO -static void local_put_char(struct bfin_serial_port *uart, char ch) -{ - unsigned short status; - int flags = 0; - - spin_lock_irqsave(&uart->port.lock, flags); - - do { - status = UART_GET_LSR(uart); - } while (!(status & THRE)); - - UART_PUT_CHAR(uart, ch); - SSYNC(); - - spin_unlock_irqrestore(&uart->port.lock, flags); -} - static void bfin_serial_rx_chars(struct bfin_serial_port *uart) { struct tty_struct *tty = uart->port.info->tty; @@ -236,8 +219,8 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart) struct pt_regs *regs = get_irq_regs(); #endif - status = UART_GET_LSR(uart); ch = UART_GET_CHAR(uart); + status = UART_GET_LSR(uart); uart->port.icount.rx++; #ifdef CONFIG_KGDB_UART @@ -337,9 +320,12 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart) return; } - local_put_char(uart, xmit->buf[xmit->tail]); - xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); - uart->port.icount.tx++; + while ((UART_GET_LSR(uart) & THRE) && xmit->tail != xmit->head) { + UART_PUT_CHAR(uart, xmit->buf[xmit->tail]); + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); + uart->port.icount.tx++; + SSYNC(); + } if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(&uart->port); @@ -352,21 +338,11 @@ static irqreturn_t bfin_serial_rx_int(int irq, void *dev_id) { struct bfin_serial_port *uart = dev_id; -#ifdef CONFIG_BF54x - unsigned short status; spin_lock(&uart->port.lock); - status = UART_GET_LSR(uart); - while ((UART_GET_IER(uart) & ERBFI) && (status & DR)) { + while ((UART_GET_IER(uart) & ERBFI) && (UART_GET_LSR(uart) & DR)) bfin_serial_rx_chars(uart); - status = UART_GET_LSR(uart); - } spin_unlock(&uart->port.lock); -#else - spin_lock(&uart->port.lock); - while ((UART_GET_IIR(uart) & IIR_STATUS) == IIR_RX_READY) - bfin_serial_rx_chars(uart); - spin_unlock(&uart->port.lock); -#endif + return IRQ_HANDLED; } @@ -374,21 +350,11 @@ static irqreturn_t bfin_serial_tx_int(int irq, void *dev_id) { struct bfin_serial_port *uart = dev_id; -#ifdef CONFIG_BF54x - unsigned short status; spin_lock(&uart->port.lock); - status = UART_GET_LSR(uart); - while ((UART_GET_IER(uart) & ETBEI) && (status & THRE)) { + if ((UART_GET_IER(uart) & ETBEI) && (UART_GET_LSR(uart) & THRE)) bfin_serial_tx_chars(uart); - status = UART_GET_LSR(uart); - } spin_unlock(&uart->port.lock); -#else - spin_lock(&uart->port.lock); - while ((UART_GET_IIR(uart) & IIR_STATUS) == IIR_TX_READY) - bfin_serial_tx_chars(uart); - spin_unlock(&uart->port.lock); -#endif + return IRQ_HANDLED; } -- GitLab From 1b73351c6afcc3acbf9e29a43ee14b3c9a386503 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Fri, 21 Dec 2007 16:45:12 +0800 Subject: [PATCH 023/923] [Blackfin] serial driver: Clean up UART DMA code. Start next TX DMA in tx dma handler instead of rx timer handler. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index e059475c91a..3a2aa7e277f 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -84,7 +84,7 @@ static void bfin_serial_mctrl_check(struct bfin_serial_port *uart); static void bfin_serial_stop_tx(struct uart_port *port) { struct bfin_serial_port *uart = (struct bfin_serial_port *)port; -#ifndef CONFIG_BF54x +#if !defined(CONFIG_BF54x) && !defined(CONFIG_SERIAL_BFIN_DMA) unsigned short ier; #endif @@ -307,7 +307,6 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart) UART_PUT_CHAR(uart, uart->port.x_char); uart->port.icount.tx++; uart->port.x_char = 0; - return; } /* * Check the modem control lines before @@ -376,28 +375,26 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) if (!uart->tx_done) return; - uart->tx_done = 0; + if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) { + bfin_serial_stop_tx(&uart->port); + uart->tx_done = 1; + return; + } + if (uart->port.x_char) { UART_PUT_CHAR(uart, uart->port.x_char); uart->port.icount.tx++; uart->port.x_char = 0; - uart->tx_done = 1; - return; } + /* * Check the modem control lines before * transmitting anything. */ bfin_serial_mctrl_check(uart); - if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) { - bfin_serial_stop_tx(&uart->port); - uart->tx_done = 1; - return; - } - spin_lock_irqsave(&uart->port.lock, flags); uart->tx_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE); if (uart->tx_count > (UART_XMIT_SIZE - xmit->tail)) @@ -471,8 +468,6 @@ void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart) int x_pos, pos; int flags = 0; - bfin_serial_dma_tx_chars(uart); - spin_lock_irqsave(&uart->port.lock, flags); x_pos = DMA_RX_XCOUNT - get_dma_curr_xcount(uart->rx_dma_channel); if (x_pos == DMA_RX_XCOUNT) @@ -513,9 +508,9 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id) if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(&uart->port); - if (uart_circ_empty(xmit)) - bfin_serial_stop_tx(&uart->port); uart->tx_done = 1; + + bfin_serial_dma_tx_chars(uart); } spin_unlock(&uart->port.lock); -- GitLab From 75b780bd99b851682289e7a88763ede5a936edb0 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Fri, 21 Dec 2007 17:03:39 +0800 Subject: [PATCH 024/923] [Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown. Kernel crash for the serial driver in DMA mode: http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3679 Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 3a2aa7e277f..838f491c8de 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -704,6 +704,7 @@ static void bfin_serial_shutdown(struct uart_port *port) disable_dma(uart->rx_dma_channel); free_dma(uart->rx_dma_channel); del_timer(&(uart->rx_dma_timer)); + dma_free_coherent(NULL, PAGE_SIZE, uart->rx_dma_buf.buf, 0); #else #ifdef CONFIG_KGDB_UART if (uart->port.line != CONFIG_KGDB_UART_PORT) -- GitLab From 99ee7b5f3a68324807650f650f2613bbe281627f Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Fri, 21 Dec 2007 17:12:55 +0800 Subject: [PATCH 025/923] [Blackfin] serial driver: Fix bug serial driver in DMA mode spams history to console on shell restart http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=2920 Fix by increasing buffer tail immediately before starting tx dma. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 838f491c8de..007414639e3 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -411,6 +411,10 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) set_dma_x_count(uart->tx_dma_channel, uart->tx_count); set_dma_x_modify(uart->tx_dma_channel, 1); enable_dma(uart->tx_dma_channel); + + xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1); + uart->port.icount.tx += uart->tx_count; + #ifdef CONFIG_BF54x UART_SET_IER(uart, ETBEI); #else @@ -502,9 +506,6 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id) ier &= ~ETBEI; UART_PUT_IER(uart, ier); #endif - xmit->tail = (xmit->tail+uart->tx_count) &(UART_XMIT_SIZE -1); - uart->port.icount.tx+=uart->tx_count; - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(&uart->port); -- GitLab From 4c195ad88b7df54b2e7340dec3446aee6ca84cd1 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Sun, 23 Dec 2007 23:18:08 +0800 Subject: [PATCH 026/923] [Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 007414639e3..ca9ceaa113a 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -95,9 +95,6 @@ static void bfin_serial_stop_tx(struct uart_port *port) disable_dma(uart->tx_dma_channel); #else #ifdef CONFIG_BF54x - /* Waiting for Transmission Finished */ - while (!(UART_GET_LSR(uart) & TFI)) - continue; /* Clear TFI bit */ UART_PUT_LSR(uart, TFI); UART_CLEAR_IER(uart, ETBEI); -- GitLab From 0bcfd70ea11a5d6f2362be463513a60245a62baf Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 24 Dec 2007 19:40:05 +0800 Subject: [PATCH 027/923] [Blackfin] serial driver: fix bug - cache the bits of the LSR on systems where the LSR is read-to-clear Cache the bits of the LSR on systems where the LSR is read-to-clear so that we can safely read the LSR in random places. this fixes older parts where break/framing/parity/overflow was not being detected at all in PIO mode, and this fixes newer parts where break/framing/parity/overflow was being reported all the time without being cleared. Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 10 +++++++--- .../asm-blackfin/mach-bf527/bfin_serial_5xx.h | 19 ++++++++++++++++++- .../asm-blackfin/mach-bf533/bfin_serial_5xx.h | 19 ++++++++++++++++++- .../asm-blackfin/mach-bf537/bfin_serial_5xx.h | 19 ++++++++++++++++++- .../asm-blackfin/mach-bf548/bfin_serial_5xx.h | 1 + .../asm-blackfin/mach-bf561/bfin_serial_5xx.h | 19 ++++++++++++++++++- 6 files changed, 80 insertions(+), 7 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index ca9ceaa113a..af84984df77 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -216,8 +216,10 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart) struct pt_regs *regs = get_irq_regs(); #endif - ch = UART_GET_CHAR(uart); status = UART_GET_LSR(uart); + UART_CLEAR_LSR(uart); + + ch = UART_GET_CHAR(uart); uart->port.icount.rx++; #ifdef CONFIG_KGDB_UART @@ -335,7 +337,7 @@ static irqreturn_t bfin_serial_rx_int(int irq, void *dev_id) struct bfin_serial_port *uart = dev_id; spin_lock(&uart->port.lock); - while ((UART_GET_IER(uart) & ERBFI) && (UART_GET_LSR(uart) & DR)) + while (UART_GET_LSR(uart) & DR) bfin_serial_rx_chars(uart); spin_unlock(&uart->port.lock); @@ -347,7 +349,7 @@ static irqreturn_t bfin_serial_tx_int(int irq, void *dev_id) struct bfin_serial_port *uart = dev_id; spin_lock(&uart->port.lock); - if ((UART_GET_IER(uart) & ETBEI) && (UART_GET_LSR(uart) & THRE)) + if (UART_GET_LSR(uart) & THRE) bfin_serial_tx_chars(uart); spin_unlock(&uart->port.lock); @@ -428,6 +430,8 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) int i, flg, status; status = UART_GET_LSR(uart); + UART_CLEAR_LSR(uart); + uart->port.icount.rx += CIRC_CNT(uart->rx_dma_buf.head, uart->rx_dma_buf.tail, UART_XMIT_SIZE);; if (status & BI) { diff --git a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h index 15dbc21eed8..233c585efc1 100644 --- a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h @@ -23,7 +23,6 @@ #define UART_GET_DLH(uart) bfin_read16(((uart)->port.membase + OFFSET_DLH)) #define UART_GET_IIR(uart) bfin_read16(((uart)->port.membase + OFFSET_IIR)) #define UART_GET_LCR(uart) bfin_read16(((uart)->port.membase + OFFSET_LCR)) -#define UART_GET_LSR(uart) bfin_read16(((uart)->port.membase + OFFSET_LSR)) #define UART_GET_GCTL(uart) bfin_read16(((uart)->port.membase + OFFSET_GCTL)) #define UART_PUT_CHAR(uart, v) bfin_write16(((uart)->port.membase + OFFSET_THR), v) @@ -58,6 +57,7 @@ struct bfin_serial_port { struct uart_port port; unsigned int old_status; + unsigned int lsr; #ifdef CONFIG_SERIAL_BFIN_DMA int tx_done; int tx_count; @@ -76,6 +76,23 @@ struct bfin_serial_port { #endif }; +/* The hardware clears the LSR bits upon read, so we need to cache + * some of the more fun bits in software so they don't get lost + * when checking the LSR in other code paths (TX). + */ +static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart) +{ + unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR); + uart->lsr |= (lsr & (BI|FE|PE|OE)); + return lsr | uart->lsr; +} + +static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart) +{ + uart->lsr = 0; + bfin_write16(uart->port.membase + OFFSET_LSR, -1); +} + struct bfin_serial_port bfin_serial_ports[NR_PORTS]; struct bfin_serial_res { unsigned long uart_base_addr; diff --git a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h index 7871d4313f4..b619065ceeb 100644 --- a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h @@ -23,7 +23,6 @@ #define UART_GET_DLH(uart) bfin_read16(((uart)->port.membase + OFFSET_DLH)) #define UART_GET_IIR(uart) bfin_read16(((uart)->port.membase + OFFSET_IIR)) #define UART_GET_LCR(uart) bfin_read16(((uart)->port.membase + OFFSET_LCR)) -#define UART_GET_LSR(uart) bfin_read16(((uart)->port.membase + OFFSET_LSR)) #define UART_GET_GCTL(uart) bfin_read16(((uart)->port.membase + OFFSET_GCTL)) #define UART_PUT_CHAR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_THR),v) @@ -46,6 +45,7 @@ struct bfin_serial_port { struct uart_port port; unsigned int old_status; + unsigned int lsr; #ifdef CONFIG_SERIAL_BFIN_DMA int tx_done; int tx_count; @@ -64,6 +64,23 @@ struct bfin_serial_port { #endif }; +/* The hardware clears the LSR bits upon read, so we need to cache + * some of the more fun bits in software so they don't get lost + * when checking the LSR in other code paths (TX). + */ +static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart) +{ + unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR); + uart->lsr |= (lsr & (BI|FE|PE|OE)); + return lsr | uart->lsr; +} + +static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart) +{ + uart->lsr = 0; + bfin_write16(uart->port.membase + OFFSET_LSR, -1); +} + struct bfin_serial_port bfin_serial_ports[NR_PORTS]; struct bfin_serial_res { unsigned long uart_base_addr; diff --git a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h index 86e45c37983..f18c517cc93 100644 --- a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h @@ -23,7 +23,6 @@ #define UART_GET_DLH(uart) bfin_read16(((uart)->port.membase + OFFSET_DLH)) #define UART_GET_IIR(uart) bfin_read16(((uart)->port.membase + OFFSET_IIR)) #define UART_GET_LCR(uart) bfin_read16(((uart)->port.membase + OFFSET_LCR)) -#define UART_GET_LSR(uart) bfin_read16(((uart)->port.membase + OFFSET_LSR)) #define UART_GET_GCTL(uart) bfin_read16(((uart)->port.membase + OFFSET_GCTL)) #define UART_PUT_CHAR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_THR),v) @@ -58,6 +57,7 @@ struct bfin_serial_port { struct uart_port port; unsigned int old_status; + unsigned int lsr; #ifdef CONFIG_SERIAL_BFIN_DMA int tx_done; int tx_count; @@ -76,6 +76,23 @@ struct bfin_serial_port { #endif }; +/* The hardware clears the LSR bits upon read, so we need to cache + * some of the more fun bits in software so they don't get lost + * when checking the LSR in other code paths (TX). + */ +static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart) +{ + unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR); + uart->lsr |= (lsr & (BI|FE|PE|OE)); + return lsr | uart->lsr; +} + +static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart) +{ + uart->lsr = 0; + bfin_write16(uart->port.membase + OFFSET_LSR, -1); +} + struct bfin_serial_port bfin_serial_ports[NR_PORTS]; struct bfin_serial_res { unsigned long uart_base_addr; diff --git a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h index 3770aa38ee9..8733d47747e 100644 --- a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h @@ -32,6 +32,7 @@ #define UART_PUT_DLH(uart,v) bfin_write16(((uart)->port.membase + OFFSET_DLH),v) #define UART_PUT_LSR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_LSR),v) #define UART_PUT_LCR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_LCR),v) +#define UART_CLEAR_LSR(uart) bfin_write16(((uart)->port.membase + OFFSET_LSR), -1) #define UART_PUT_GCTL(uart,v) bfin_write16(((uart)->port.membase + OFFSET_GCTL),v) #if defined(CONFIG_BFIN_UART0_CTSRTS) || defined(CONFIG_BFIN_UART1_CTSRTS) diff --git a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h index 7871d4313f4..b619065ceeb 100644 --- a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h @@ -23,7 +23,6 @@ #define UART_GET_DLH(uart) bfin_read16(((uart)->port.membase + OFFSET_DLH)) #define UART_GET_IIR(uart) bfin_read16(((uart)->port.membase + OFFSET_IIR)) #define UART_GET_LCR(uart) bfin_read16(((uart)->port.membase + OFFSET_LCR)) -#define UART_GET_LSR(uart) bfin_read16(((uart)->port.membase + OFFSET_LSR)) #define UART_GET_GCTL(uart) bfin_read16(((uart)->port.membase + OFFSET_GCTL)) #define UART_PUT_CHAR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_THR),v) @@ -46,6 +45,7 @@ struct bfin_serial_port { struct uart_port port; unsigned int old_status; + unsigned int lsr; #ifdef CONFIG_SERIAL_BFIN_DMA int tx_done; int tx_count; @@ -64,6 +64,23 @@ struct bfin_serial_port { #endif }; +/* The hardware clears the LSR bits upon read, so we need to cache + * some of the more fun bits in software so they don't get lost + * when checking the LSR in other code paths (TX). + */ +static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart) +{ + unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR); + uart->lsr |= (lsr & (BI|FE|PE|OE)); + return lsr | uart->lsr; +} + +static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart) +{ + uart->lsr = 0; + bfin_write16(uart->port.membase + OFFSET_LSR, -1); +} + struct bfin_serial_port bfin_serial_ports[NR_PORTS]; struct bfin_serial_res { unsigned long uart_base_addr; -- GitLab From 8851c71eb97610f0f63121d62345c969f71201a2 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 24 Dec 2007 19:48:04 +0800 Subject: [PATCH 028/923] [Blackfin] serial driver: rework break flood anomaly handling to be more robust/realistic about what we can actually work around Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 66 +++++++++++++++---- .../asm-blackfin/mach-bf533/bfin_serial_5xx.h | 3 + .../asm-blackfin/mach-bf561/bfin_serial_5xx.h | 3 + 3 files changed, 58 insertions(+), 14 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index af84984df77..50aa3b2a19b 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -206,12 +206,20 @@ int kgdb_get_debug_char(void) } #endif +#if ANOMALY_05000230 && defined(CONFIG_SERIAL_BFIN_PIO) +# define UART_GET_ANOMALY_THRESHOLD(uart) ((uart)->anomaly_threshold) +# define UART_SET_ANOMALY_THRESHOLD(uart, v) ((uart)->anomaly_threshold = (v)) +#else +# define UART_GET_ANOMALY_THRESHOLD(uart) 0 +# define UART_SET_ANOMALY_THRESHOLD(uart, v) +#endif + #ifdef CONFIG_SERIAL_BFIN_PIO static void bfin_serial_rx_chars(struct bfin_serial_port *uart) { struct tty_struct *tty = uart->port.info->tty; unsigned int status, ch, flg; - static int in_break = 0; + static struct timeval anomaly_start = { .tv_sec = 0 }; #ifdef CONFIG_KGDB_UART struct pt_regs *regs = get_irq_regs(); #endif @@ -244,28 +252,56 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart) #endif if (ANOMALY_05000230) { - /* The BF533 family of processors have a nice misbehavior where - * they continuously generate characters for a "single" break. + /* The BF533 (and BF561) family of processors have a nice anomaly + * where they continuously generate characters for a "single" break. * We have to basically ignore this flood until the "next" valid - * character comes across. All other Blackfin families operate - * properly though. + * character comes across. Due to the nature of the flood, it is + * not possible to reliably catch bytes that are sent too quickly + * after this break. So application code talking to the Blackfin + * which sends a break signal must allow at least 1.5 character + * times after the end of the break for things to stabilize. This + * timeout was picked as it must absolutely be larger than 1 + * character time +/- some percent. So 1.5 sounds good. All other + * Blackfin families operate properly. Woo. * Note: While Anomaly 05000230 does not directly address this, * the changes that went in for it also fixed this issue. + * That anomaly was fixed in 0.5+ silicon. I like bunnies. */ - if (in_break) { - if (ch != 0) { - in_break = 0; - ch = UART_GET_CHAR(uart); - if (bfin_revid() < 5) - return; - } else - return; + if (anomaly_start.tv_sec) { + struct timeval curr; + suseconds_t usecs; + + if ((~ch & (~ch + 1)) & 0xff) + goto known_good_char; + + do_gettimeofday(&curr); + if (curr.tv_sec - anomaly_start.tv_sec > 1) + goto known_good_char; + + usecs = 0; + if (curr.tv_sec != anomaly_start.tv_sec) + usecs += USEC_PER_SEC; + usecs += curr.tv_usec - anomaly_start.tv_usec; + + if (usecs > UART_GET_ANOMALY_THRESHOLD(uart)) + goto known_good_char; + + if (ch) + anomaly_start.tv_sec = 0; + else + anomaly_start = curr; + + return; + + known_good_char: + anomaly_start.tv_sec = 0; } } if (status & BI) { if (ANOMALY_05000230) - in_break = 1; + if (bfin_revid() < 5) + do_gettimeofday(&anomaly_start); uart->port.icount.brk++; if (uart_handle_break(&uart->port)) goto ignore_char; @@ -778,6 +814,8 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios, quot = uart_get_divisor(port, baud); spin_lock_irqsave(&uart->port.lock, flags); + UART_SET_ANOMALY_THRESHOLD(uart, USEC_PER_SEC / baud * 15); + do { lsr = UART_GET_LSR(uart); } while (!(lsr & TEMT)); diff --git a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h index b619065ceeb..a1b4f4eebd0 100644 --- a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h @@ -57,6 +57,9 @@ struct bfin_serial_port { struct work_struct tx_dma_workqueue; #else struct work_struct cts_workqueue; +# if ANOMALY_05000230 + unsigned int anomaly_threshold; +# endif #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS int cts_pin; diff --git a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h index b619065ceeb..a1b4f4eebd0 100644 --- a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h @@ -57,6 +57,9 @@ struct bfin_serial_port { struct work_struct tx_dma_workqueue; #else struct work_struct cts_workqueue; +# if ANOMALY_05000230 + unsigned int anomaly_threshold; +# endif #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS int cts_pin; -- GitLab From 1ba7a3ee310138015e744444043ce3e947429fce Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 11 Jan 2008 15:56:26 +0800 Subject: [PATCH 029/923] [Blackfin] serial driver: use simpler comment headers and strip out information that is maintained in the scm's log Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 27 ++++----------------------- 1 file changed, 4 insertions(+), 23 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 50aa3b2a19b..a07df539e52 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -1,30 +1,11 @@ /* - * File: drivers/serial/bfin_5xx.c - * Based on: Based on drivers/serial/sa1100.c - * Author: Aubrey Li + * Blackfin On-Chip Serial Driver * - * Created: - * Description: Driver for blackfin 5xx serial ports + * Copyright 2006-2007 Analog Devices Inc. * - * Modified: - * Copyright 2006 Analog Devices Inc. + * Enter bugs at http://blackfin.uclinux.org/ * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * Licensed under the GPL-2 or later. */ #if defined(CONFIG_SERIAL_BFIN_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -- GitLab From 095455682e29dbbc9f93ad83db459df524524992 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Sat, 2 Feb 2008 15:58:30 +0800 Subject: [PATCH 030/923] [Blackfin] serial driver: ADSP-BF52x arch/mach support Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- drivers/serial/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index b82595cf13e..202fb5c99b8 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -686,7 +686,7 @@ config UART0_RTS_PIN config SERIAL_BFIN_UART1 bool "Enable UART1" - depends on SERIAL_BFIN && (BF534 || BF536 || BF537 || BF54x) + depends on SERIAL_BFIN && (!BF531 && !BF532 && !BF533 && !BF561) help Enable UART1 -- GitLab From 4cb4f22b19237e63c460c53fbd1c417cdaf63014 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Sat, 2 Feb 2008 14:29:25 +0800 Subject: [PATCH 031/923] [Blackfin] serial driver: Fix bug Poll RTS/CTS status in DMA mode as well https://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3858 Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 16 +++++----------- .../asm-blackfin/mach-bf527/bfin_serial_5xx.h | 3 +-- .../asm-blackfin/mach-bf533/bfin_serial_5xx.h | 2 +- .../asm-blackfin/mach-bf537/bfin_serial_5xx.h | 3 +-- .../asm-blackfin/mach-bf548/bfin_serial_5xx.h | 3 +-- .../asm-blackfin/mach-bf561/bfin_serial_5xx.h | 2 +- 6 files changed, 10 insertions(+), 19 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index a07df539e52..af866ab3f5a 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -53,7 +53,6 @@ #ifdef CONFIG_SERIAL_BFIN_DMA static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart); #else -static void bfin_serial_do_work(struct work_struct *work); static void bfin_serial_tx_chars(struct bfin_serial_port *uart); #endif @@ -372,8 +371,9 @@ static irqreturn_t bfin_serial_tx_int(int irq, void *dev_id) return IRQ_HANDLED; } +#endif - +#ifdef CONFIG_SERIAL_BFIN_CTSRTS static void bfin_serial_do_work(struct work_struct *work) { struct bfin_serial_port *uart = container_of(work, struct bfin_serial_port, cts_workqueue); @@ -607,22 +607,17 @@ static void bfin_serial_mctrl_check(struct bfin_serial_port *uart) { #ifdef CONFIG_SERIAL_BFIN_CTSRTS unsigned int status; -# ifdef CONFIG_SERIAL_BFIN_DMA struct uart_info *info = uart->port.info; struct tty_struct *tty = info->tty; status = bfin_serial_get_mctrl(&uart->port); + uart_handle_cts_change(&uart->port, status & TIOCM_CTS); if (!(status & TIOCM_CTS)) { tty->hw_stopped = 1; + schedule_work(&uart->cts_workqueue); } else { tty->hw_stopped = 0; } -# else - status = bfin_serial_get_mctrl(&uart->port); - uart_handle_cts_change(&uart->port, status & TIOCM_CTS); - if (!(status & TIOCM_CTS)) - schedule_work(&uart->cts_workqueue); -# endif #endif } @@ -939,10 +934,9 @@ static void __init bfin_serial_init_ports(void) bfin_serial_ports[i].rx_dma_channel = bfin_serial_resource[i].uart_rx_dma_channel; init_timer(&(bfin_serial_ports[i].rx_dma_timer)); -#else - INIT_WORK(&bfin_serial_ports[i].cts_workqueue, bfin_serial_do_work); #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS + INIT_WORK(&bfin_serial_ports[i].cts_workqueue, bfin_serial_do_work); bfin_serial_ports[i].cts_pin = bfin_serial_resource[i].uart_cts_pin; bfin_serial_ports[i].rts_pin = diff --git a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h index 233c585efc1..c0694ecd2ec 100644 --- a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h @@ -67,10 +67,9 @@ struct bfin_serial_port { unsigned int tx_dma_channel; unsigned int rx_dma_channel; struct work_struct tx_dma_workqueue; -#else - struct work_struct cts_workqueue; #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif diff --git a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h index a1b4f4eebd0..b6f513bee56 100644 --- a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h @@ -56,12 +56,12 @@ struct bfin_serial_port { unsigned int rx_dma_channel; struct work_struct tx_dma_workqueue; #else - struct work_struct cts_workqueue; # if ANOMALY_05000230 unsigned int anomaly_threshold; # endif #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif diff --git a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h index f18c517cc93..8fc672d3105 100644 --- a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h @@ -67,10 +67,9 @@ struct bfin_serial_port { unsigned int tx_dma_channel; unsigned int rx_dma_channel; struct work_struct tx_dma_workqueue; -#else - struct work_struct cts_workqueue; #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif diff --git a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h index 8733d47747e..c459c484646 100644 --- a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h @@ -69,10 +69,9 @@ struct bfin_serial_port { unsigned int tx_dma_channel; unsigned int rx_dma_channel; struct work_struct tx_dma_workqueue; -#else - struct work_struct cts_workqueue; #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif diff --git a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h index a1b4f4eebd0..b6f513bee56 100644 --- a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h @@ -56,12 +56,12 @@ struct bfin_serial_port { unsigned int rx_dma_channel; struct work_struct tx_dma_workqueue; #else - struct work_struct cts_workqueue; # if ANOMALY_05000230 unsigned int anomaly_threshold; # endif #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS + struct work_struct cts_workqueue; int cts_pin; int rts_pin; #endif -- GitLab From db288381e26e592b11572ce8199bedeadf0c0830 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Sat, 2 Feb 2008 17:05:02 +0800 Subject: [PATCH 032/923] [Blackfin] serial driver: Add flow control support to bf54x Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/Kconfig | 4 ++-- drivers/serial/bfin_5xx.c | 12 ++++++++++++ include/asm-blackfin/mach-bf548/bfin_serial_5xx.h | 3 +++ 3 files changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 202fb5c99b8..cf627cd1b4c 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -699,14 +699,14 @@ config BFIN_UART1_CTSRTS config UART1_CTS_PIN int "UART1 CTS pin" - depends on BFIN_UART1_CTSRTS && (BF53x || BF561) + depends on BFIN_UART1_CTSRTS && !BF54x default -1 help Refer to ./include/asm-blackfin/gpio.h to see the GPIO map. config UART1_RTS_PIN int "UART1 RTS pin" - depends on BFIN_UART1_CTSRTS && (BF53x || BF561) + depends on BFIN_UART1_CTSRTS && !BF54x default -1 help Refer to ./include/asm-blackfin/gpio.h to see the GPIO map. diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index af866ab3f5a..69ac7007682 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -579,7 +579,11 @@ static unsigned int bfin_serial_get_mctrl(struct uart_port *port) if (uart->cts_pin < 0) return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; +# ifdef BF54x + if (UART_GET_MSR(uart) & CTS) +# else if (gpio_get_value(uart->cts_pin)) +# endif return TIOCM_DSR | TIOCM_CAR; else #endif @@ -594,9 +598,17 @@ static void bfin_serial_set_mctrl(struct uart_port *port, unsigned int mctrl) return; if (mctrl & TIOCM_RTS) +# ifdef BF54x + UART_PUT_MCR(uart, UART_GET_MCR(uart) & ~MRTS); +# else gpio_set_value(uart->rts_pin, 0); +# endif else +# ifdef BF54x + UART_PUT_MCR(uart, UART_GET_MCR(uart) | MRTS); +# else gpio_set_value(uart->rts_pin, 1); +# endif #endif } diff --git a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h index c459c484646..7e6339f62a5 100644 --- a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h @@ -24,6 +24,8 @@ #define UART_GET_LCR(uart) bfin_read16(((uart)->port.membase + OFFSET_LCR)) #define UART_GET_LSR(uart) bfin_read16(((uart)->port.membase + OFFSET_LSR)) #define UART_GET_GCTL(uart) bfin_read16(((uart)->port.membase + OFFSET_GCTL)) +#define UART_GET_MSR(uart) bfin_read16(((uart)->port.membase + OFFSET_MSR)) +#define UART_GET_MCR(uart) bfin_read16(((uart)->port.membase + OFFSET_MCR)) #define UART_PUT_CHAR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_THR),v) #define UART_PUT_DLL(uart,v) bfin_write16(((uart)->port.membase + OFFSET_DLL),v) @@ -34,6 +36,7 @@ #define UART_PUT_LCR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_LCR),v) #define UART_CLEAR_LSR(uart) bfin_write16(((uart)->port.membase + OFFSET_LSR), -1) #define UART_PUT_GCTL(uart,v) bfin_write16(((uart)->port.membase + OFFSET_GCTL),v) +#define UART_PUT_MCR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_MCR),v) #if defined(CONFIG_BFIN_UART0_CTSRTS) || defined(CONFIG_BFIN_UART1_CTSRTS) # define CONFIG_SERIAL_BFIN_CTSRTS -- GitLab From ead03e30b050d6dda769e7e9b071c5fa720bf8d2 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 5 Feb 2008 15:51:24 +0000 Subject: [PATCH 033/923] [CIFS] fix warning in cifs_spnego.c Signed-off-by: Andrew Morton Signed-off-by: Steve French --- fs/cifs/cifs_spnego.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c index d543accc10d..6653e29637a 100644 --- a/fs/cifs/cifs_spnego.c +++ b/fs/cifs/cifs_spnego.c @@ -125,7 +125,7 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo) #ifdef CONFIG_CIFS_DEBUG2 if (cifsFYI && !IS_ERR(spnego_key)) { struct cifs_spnego_msg *msg = spnego_key->payload.data; - cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024, + cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024U, msg->secblob_len + msg->sesskey_len)); } #endif /* CONFIG_CIFS_DEBUG2 */ -- GitLab From ad7a2926b9e53cfb3020d15bdfacacc54e2b63da Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 7 Feb 2008 23:25:02 +0000 Subject: [PATCH 034/923] [CIFS] reduce checkpatch warnings Signed-off-by: Steve French --- fs/cifs/README | 2 +- fs/cifs/cifs_debug.c | 3 +- fs/cifs/cifs_debug.h | 6 +- fs/cifs/cifs_unicode.c | 4 +- fs/cifs/cifs_unicode.h | 9 +- fs/cifs/cifsacl.c | 7 +- fs/cifs/cifsfs.c | 3 +- fs/cifs/cifsproto.h | 16 ++-- fs/cifs/cifssmb.c | 212 ++++++++++++----------------------------- fs/cifs/dir.c | 20 +--- fs/cifs/dns_resolve.h | 2 +- fs/cifs/fcntl.c | 6 +- fs/cifs/file.c | 20 ++-- fs/cifs/inode.c | 7 +- fs/cifs/ioctl.c | 2 +- fs/cifs/md4.c | 4 +- fs/cifs/md5.c | 9 +- fs/cifs/misc.c | 14 +-- fs/cifs/netmisc.c | 15 +-- fs/cifs/readdir.c | 48 ++++------ fs/cifs/smbdes.c | 22 ++--- fs/cifs/transport.c | 6 +- fs/cifs/xattr.c | 9 +- 23 files changed, 167 insertions(+), 279 deletions(-) diff --git a/fs/cifs/README b/fs/cifs/README index c623e2f9c5d..50306229b0f 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -461,7 +461,7 @@ A partial list of the supported mount options follows: cifsacl Report mode bits (e.g. on stat) based on the Windows ACL for the file. (EXPERIMENTAL) servern Specify the server 's netbios name (RFC1001 name) to use - when attempting to setup a session to the server. This is + when attempting to setup a session to the server. This is needed for mounting to some older servers (such as OS/2 or Windows 98 and Windows ME) since they do not support a default server name. A server name can be up diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 73c4c419663..4bd863716f7 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -98,8 +98,7 @@ void cifs_dump_mids(struct TCP_Server_Info *server) if (mid_entry->resp_buf) { cifs_dump_detail(mid_entry->resp_buf); cifs_dump_mem("existing buf: ", - mid_entry->resp_buf, - 62 /* fixme */); + mid_entry->resp_buf, 62); } } } diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h index c26cd0d2c6d..90e7624a254 100644 --- a/fs/cifs/cifs_debug.h +++ b/fs/cifs/cifs_debug.h @@ -64,10 +64,10 @@ extern int cifsERROR; * --------- */ #else /* _CIFS_DEBUG */ -#define cERROR(button,prspec) -#define cEVENT(format,arg...) +#define cERROR(button, prspec) +#define cEVENT(format, arg...) #define cFYI(button, prspec) -#define cifserror(format,arg...) +#define cifserror(format, arg...) #endif /* _CIFS_DEBUG */ #endif /* _H_CIFS_DEBUG */ diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index b5903b89250..7d75272a6b3 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -32,7 +32,7 @@ * */ int -cifs_strfromUCS_le(char *to, const __le16 * from, +cifs_strfromUCS_le(char *to, const __le16 *from, int len, const struct nls_table *codepage) { int i; @@ -61,7 +61,7 @@ cifs_strfromUCS_le(char *to, const __le16 * from, * */ int -cifs_strtoUCS(__le16 * to, const char *from, int len, +cifs_strtoUCS(__le16 *to, const char *from, int len, const struct nls_table *codepage) { int charlen; diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h index 614c11fcdcb..14eb9a2395d 100644 --- a/fs/cifs/cifs_unicode.h +++ b/fs/cifs/cifs_unicode.h @@ -254,7 +254,8 @@ UniStrstr(const wchar_t *ucs1, const wchar_t *ucs2) const wchar_t *anchor2 = ucs2; while (*ucs1) { - if (*ucs1 == *ucs2) { /* Partial match found */ + if (*ucs1 == *ucs2) { + /* Partial match found */ ucs1++; ucs2++; } else { @@ -279,7 +280,8 @@ UniToupper(register wchar_t uc) { register const struct UniCaseRange *rp; - if (uc < sizeof (CifsUniUpperTable)) { /* Latin characters */ + if (uc < sizeof(CifsUniUpperTable)) { + /* Latin characters */ return uc + CifsUniUpperTable[uc]; /* Use base tables */ } else { rp = CifsUniUpperRange; /* Use range tables */ @@ -320,7 +322,8 @@ UniTolower(wchar_t uc) { register struct UniCaseRange *rp; - if (uc < sizeof (UniLowerTable)) { /* Latin characters */ + if (uc < sizeof(UniLowerTable)) { + /* Latin characters */ return uc + UniLowerTable[uc]; /* Use base tables */ } else { rp = UniLowerRange; /* Use range tables */ diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index a7035bd18e4..842aaa92168 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -46,8 +46,7 @@ static struct cifs_wksid wksidarr[NUM_WK_SIDS] = { static const struct cifs_sid sid_everyone = { 1, 1, {0, 0, 0, 0, 0, 1}, {0} }; /* group users */ -static const struct cifs_sid sid_user = - {1, 2 , {0, 0, 0, 0, 0, 5}, {} }; +static const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {} }; int match_sid(struct cifs_sid *ctsid) @@ -195,9 +194,9 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode, /* For deny ACEs we change the mask so that subsequent allow access control entries do not turn on the bits we are denying */ if (type == ACCESS_DENIED) { - if (flags & GENERIC_ALL) { + if (flags & GENERIC_ALL) *pbits_to_set &= ~S_IRWXUGO; - } + if ((flags & GENERIC_WRITE) || ((flags & FILE_WRITE_RIGHTS) == FILE_WRITE_RIGHTS)) *pbits_to_set &= ~S_IWUGO; diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index e9f4ec70109..bca6a69aaf2 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -203,9 +203,8 @@ cifs_put_super(struct super_block *sb) return; } rc = cifs_umount(sb, cifs_sb); - if (rc) { + if (rc) cERROR(1, ("cifs_umount failed with return code %d", rc)); - } #ifdef CONFIG_CIFS_DFS_UPCALL if (cifs_sb->mountdata) { kfree(cifs_sb->mountdata); diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 2f09f565a3d..6355ff841f3 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -53,11 +53,11 @@ extern int SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses, extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *, struct kvec *, int /* nvec to send */, int * /* type of buf returned */ , const int flags); -extern int SendReceiveBlockingLock(const unsigned int /* xid */ , - struct cifsTconInfo *, - struct smb_hdr * /* input */ , - struct smb_hdr * /* out */ , - int * /* bytes returned */); +extern int SendReceiveBlockingLock(const unsigned int xid, + struct cifsTconInfo *ptcon, + struct smb_hdr *in_buf , + struct smb_hdr *out_buf, + int *bytes_returned); extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length); extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *); extern int is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof); @@ -84,7 +84,7 @@ extern __u16 GetNextMid(struct TCP_Server_Info *server); extern struct oplock_q_entry *AllocOplockQEntry(struct inode *, u16, struct cifsTconInfo *); extern void DeleteOplockQEntry(struct oplock_q_entry *); -extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ ); +extern struct timespec cifs_NTtimeToUnix(u64 utc_nanoseconds_since_1601); extern u64 cifs_UnixTimeToNT(struct timespec); extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time); extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time); @@ -175,11 +175,11 @@ extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData); extern int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, - const char *fileName, const FILE_BASIC_INFO * data, + const char *fileName, const FILE_BASIC_INFO *data, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, - const FILE_BASIC_INFO * data, __u16 fid); + const FILE_BASIC_INFO *data, __u16 fid); #if 0 extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, __u16 dos_attributes, diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 9409524e4bf..4b69d1cea65 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1,7 +1,7 @@ /* * fs/cifs/cifssmb.c * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * Contains the routines for constructing the SMB PDUs themselves @@ -102,10 +102,12 @@ static void mark_open_files_invalid(struct cifsTconInfo *pTcon) to this tcon */ } -/* If the return code is zero, this function must fill in request_buf pointer */ +/* Allocate and return pointer to an SMB request buffer, and set basic + SMB information in the SMB header. If the return code is zero, this + function must have filled in request_buf pointer */ static int small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, - void **request_buf /* returned */) + void **request_buf) { int rc = 0; @@ -363,7 +365,7 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, *response_buf = *request_buf; header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, - wct /*wct */ ); + wct); if (tcon != NULL) cifs_stats_inc(&tcon->num_smbs_sent); @@ -523,7 +525,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) if (remain >= (MIN_TZ_ADJ / 2)) result += MIN_TZ_ADJ; if (val < 0) - result = - result; + result = -result; server->timeAdj = result; } else { server->timeAdj = (int)tmp; @@ -868,9 +870,8 @@ PsxDelete: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("Posix delete returned %d", rc)); - } cifs_buf_release(pSMB); cifs_stats_inc(&tcon->num_deletes); @@ -916,9 +917,8 @@ DelFileRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_deletes); - if (rc) { + if (rc) cFYI(1, ("Error in RMFile = %d", rc)); - } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -961,9 +961,8 @@ RmDirRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_rmdirs); - if (rc) { + if (rc) cFYI(1, ("Error in RMDir = %d", rc)); - } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -1005,9 +1004,8 @@ MkDirRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_mkdirs); - if (rc) { + if (rc) cFYI(1, ("Error in Mkdir = %d", rc)); - } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -1017,7 +1015,7 @@ MkDirRetry: int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, - __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData, + __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData, __u32 *pOplock, const char *name, const struct nls_table *nls_codepage, int remap) { @@ -1027,8 +1025,8 @@ CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, int rc = 0; int bytes_returned = 0; __u16 params, param_offset, offset, byte_count, count; - OPEN_PSX_REQ * pdata; - OPEN_PSX_RSP * psx_rsp; + OPEN_PSX_REQ *pdata; + OPEN_PSX_RSP *psx_rsp; cFYI(1, ("In POSIX Create")); PsxCreat: @@ -1169,8 +1167,8 @@ static __u16 convert_disposition(int disposition) int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, const char *fileName, const int openDisposition, - const int access_flags, const int create_options, __u16 * netfid, - int *pOplock, FILE_ALL_INFO * pfile_info, + const int access_flags, const int create_options, __u16 *netfid, + int *pOplock, FILE_ALL_INFO *pfile_info, const struct nls_table *nls_codepage, int remap) { int rc = -EACCES; @@ -1221,8 +1219,8 @@ OldOpenRetry: if (create_options & CREATE_OPTION_SPECIAL) pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); - else - pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ + else /* BB FIXME BB */ + pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* if ((omode & S_IWUGO) == 0) pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ @@ -1284,8 +1282,8 @@ OldOpenRetry: int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, const char *fileName, const int openDisposition, - const int access_flags, const int create_options, __u16 * netfid, - int *pOplock, FILE_ALL_INFO * pfile_info, + const int access_flags, const int create_options, __u16 *netfid, + int *pOplock, FILE_ALL_INFO *pfile_info, const struct nls_table *nls_codepage, int remap) { int rc = -EACCES; @@ -1556,9 +1554,9 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, } /* else setting file size with write of zero bytes */ if (wct == 14) byte_count = bytes_sent + 1; /* pad */ - else /* wct == 12 */ { + else /* wct == 12 */ byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ - } + pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); pSMB->hdr.smb_buf_length += byte_count; @@ -1663,7 +1661,7 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, rc = -EIO; *nbytes = 0; } else { - WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base; + WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base; *nbytes = le16_to_cpu(pSMBr->CountHigh); *nbytes = (*nbytes) << 16; *nbytes += le16_to_cpu(pSMBr->Count); @@ -1744,9 +1742,8 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, /* SMB buffer freed by function above */ } cifs_stats_inc(&tcon->num_locks); - if (rc) { + if (rc) cFYI(1, ("Send error in Lock = %d", rc)); - } /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ @@ -1791,7 +1788,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, count = sizeof(struct cifs_posix_lock); pSMB->MaxParameterCount = cpu_to_le16(2); - pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ + pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ pSMB->SetupCount = 1; pSMB->Reserved3 = 0; if (get_flag) @@ -1972,9 +1969,8 @@ renameRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_renames); - if (rc) { + if (rc) cFYI(1, ("Send error in rename = %d", rc)); - } cifs_buf_release(pSMB); @@ -2016,7 +2012,7 @@ int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, data_offset = (char *) (&pSMB->hdr.Protocol) + offset; rename_info = (struct set_file_rename *) data_offset; pSMB->MaxParameterCount = cpu_to_le16(2); - pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ + pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ pSMB->SetupCount = 1; pSMB->Reserved3 = 0; pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); @@ -2052,9 +2048,8 @@ int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&pTcon->num_t2renames); - if (rc) { + if (rc) cFYI(1, ("Send error in Rename (by file handle) = %d", rc)); - } cifs_buf_release(pSMB); @@ -2211,9 +2206,8 @@ createSymLinkRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_symlinks); - if (rc) { + if (rc) cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc)); - } if (pSMB) cifs_buf_release(pSMB); @@ -2299,9 +2293,8 @@ createHardLinkRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_hardlinks); - if (rc) { + if (rc) cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); - } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -2370,9 +2363,9 @@ winCreateHardLinkRetry: rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_hardlinks); - if (rc) { + if (rc) cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); - } + cifs_buf_release(pSMB); if (rc == -EAGAIN) goto winCreateHardLinkRetry; @@ -2968,9 +2961,8 @@ setAclRetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("Set POSIX ACL returned %d", rc)); - } setACLerrorExit: cifs_buf_release(pSMB); @@ -2982,7 +2974,7 @@ setACLerrorExit: /* BB fix tabs in this function FIXME BB */ int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, - const int netfid, __u64 * pExtAttrBits, __u64 *pMask) + const int netfid, __u64 *pExtAttrBits, __u64 *pMask) { int rc = 0; struct smb_t2_qfi_req *pSMB = NULL; @@ -3000,7 +2992,7 @@ GetExtAttrRetry: if (rc) return rc; - params = 2 /* level */ +2 /* fid */; + params = 2 /* level */ + 2 /* fid */; pSMB->t2.TotalDataCount = 0; pSMB->t2.MaxParameterCount = cpu_to_le16(4); /* BB find exact max data count below from sess structure BB */ @@ -3071,7 +3063,7 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, { int rc = 0; int buf_type = 0; - QUERY_SEC_DESC_REQ * pSMB; + QUERY_SEC_DESC_REQ *pSMB; struct kvec iov[1]; cFYI(1, ("GetCifsACL")); @@ -3101,7 +3093,7 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, if (rc) { cFYI(1, ("Send error in QuerySecDesc = %d", rc)); } else { /* decode response */ - __le32 * parm; + __le32 *parm; __u32 parm_len; __u32 acl_len; struct smb_com_ntransact_rsp *pSMBr; @@ -3230,8 +3222,8 @@ int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, FILE_ALL_INFO *pFinfo, const struct nls_table *nls_codepage, int remap) { - QUERY_INFORMATION_REQ * pSMB; - QUERY_INFORMATION_RSP * pSMBr; + QUERY_INFORMATION_REQ *pSMB; + QUERY_INFORMATION_RSP *pSMBr; int rc = 0; int bytes_returned; int name_len; @@ -3263,9 +3255,11 @@ QInfRetry: (struct smb_hdr *) pSMBr, &bytes_returned, 0); if (rc) { cFYI(1, ("Send error in QueryInfo = %d", rc)); - } else if (pFinfo) { /* decode response */ + } else if (pFinfo) { struct timespec ts; __u32 time = le32_to_cpu(pSMBr->last_write_time); + + /* decode response */ /* BB FIXME - add time zone adjustment BB */ memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); ts.tv_nsec = 0; @@ -3296,7 +3290,7 @@ QInfRetry: int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - FILE_ALL_INFO * pFindData, + FILE_ALL_INFO *pFindData, int legacy /* old style infolevel */, const struct nls_table *nls_codepage, int remap) { @@ -3371,10 +3365,12 @@ QPathInfoRetry: else if (pFindData) { int size; __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - if (legacy) /* we do not read the last field, EAsize, - fortunately since it varies by subdialect - and on Set vs. Get, is two bytes or 4 - bytes depending but we don't care here */ + + /* On legacy responses we do not read the last field, + EAsize, fortunately since it varies by subdialect and + also note it differs on Set vs. Get, ie two bytes or 4 + bytes depending but we don't care here */ + if (legacy) size = sizeof(FILE_INFO_STANDARD); else size = sizeof(FILE_ALL_INFO); @@ -3476,85 +3472,6 @@ UnixQPathInfoRetry: return rc; } -#if 0 /* function unused at present */ -int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon, - const char *searchName, FILE_ALL_INFO * findData, - const struct nls_table *nls_codepage) -{ -/* level 257 SMB_ */ - TRANSACTION2_FFIRST_REQ *pSMB = NULL; - TRANSACTION2_FFIRST_RSP *pSMBr = NULL; - int rc = 0; - int bytes_returned; - int name_len; - __u16 params, byte_count; - - cFYI(1, ("In FindUnique")); -findUniqueRetry: - rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, - (void **) &pSMBr); - if (rc) - return rc; - - if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { - name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, - PATH_MAX, nls_codepage); - name_len++; /* trailing null */ - name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ - name_len = strnlen(searchName, PATH_MAX); - name_len++; /* trailing null */ - strncpy(pSMB->FileName, searchName, name_len); - } - - params = 12 + name_len /* includes null */ ; - pSMB->TotalDataCount = 0; /* no EAs */ - pSMB->MaxParameterCount = cpu_to_le16(2); - pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ - pSMB->MaxSetupCount = 0; - pSMB->Reserved = 0; - pSMB->Flags = 0; - pSMB->Timeout = 0; - pSMB->Reserved2 = 0; - pSMB->ParameterOffset = cpu_to_le16( - offsetof(struct smb_com_transaction2_ffirst_req, InformationLevel)-4); - pSMB->DataCount = 0; - pSMB->DataOffset = 0; - pSMB->SetupCount = 1; /* one byte, no need to le convert */ - pSMB->Reserved3 = 0; - pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); - byte_count = params + 1 /* pad */ ; - pSMB->TotalParameterCount = cpu_to_le16(params); - pSMB->ParameterCount = pSMB->TotalParameterCount; - pSMB->SearchAttributes = - cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | - ATTR_DIRECTORY); - pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ - pSMB->SearchFlags = cpu_to_le16(1); - pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); - pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ - pSMB->hdr.smb_buf_length += byte_count; - pSMB->ByteCount = cpu_to_le16(byte_count); - - rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); - - if (rc) { - cFYI(1, ("Send error in FindFileDirInfo = %d", rc)); - } else { /* decode response */ - cifs_stats_inc(&tcon->num_ffirst); - /* BB fill in */ - } - - cifs_buf_release(pSMB); - if (rc == -EAGAIN) - goto findUniqueRetry; - - return rc; -} -#endif /* end unused (temporarily) function */ - /* xid, tcon, searchName and codepage are input parms, rest are returned */ int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, @@ -3566,7 +3483,7 @@ CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, /* level 257 SMB_ */ TRANSACTION2_FFIRST_REQ *pSMB = NULL; TRANSACTION2_FFIRST_RSP *pSMBr = NULL; - T2_FFIRST_RSP_PARMS * parms; + T2_FFIRST_RSP_PARMS *parms; int rc = 0; int bytes_returned = 0; int name_len; @@ -3697,7 +3614,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, { TRANSACTION2_FNEXT_REQ *pSMB = NULL; TRANSACTION2_FNEXT_RSP *pSMBr = NULL; - T2_FNEXT_RSP_PARMS * parms; + T2_FNEXT_RSP_PARMS *parms; char *response_data; int rc = 0; int bytes_returned, name_len; @@ -3836,9 +3753,9 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, pSMB->FileID = searchHandle; pSMB->ByteCount = 0; rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); - if (rc) { + if (rc) cERROR(1, ("Send error in FindClose = %d", rc)); - } + cifs_stats_inc(&tcon->num_fclose); /* Since session is dead, search handle closed on server already */ @@ -3851,7 +3768,7 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - __u64 * inode_number, + __u64 *inode_number, const struct nls_table *nls_codepage, int remap) { int rc = 0; @@ -4560,9 +4477,8 @@ SETFSUnixRetry: cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); } else { /* decode response */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if (rc) { + if (rc) rc = -EIO; /* bad smb */ - } } cifs_buf_release(pSMB); @@ -4744,9 +4660,8 @@ SetEOFRetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("SetPathInfo (file size) returned %d", rc)); - } cifs_buf_release(pSMB); @@ -4897,9 +4812,8 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, pSMB->ByteCount = cpu_to_le16(byte_count); memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); - if (rc) { + if (rc) cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc)); - } /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ @@ -4975,9 +4889,8 @@ SetTimesRetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("SetPathInfo (times) returned %d", rc)); - } cifs_buf_release(pSMB); @@ -5027,9 +4940,8 @@ SetAttrLgcyRetry: pSMB->ByteCount = cpu_to_le16(name_len + 1); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("Error in LegacySetAttr = %d", rc)); - } cifs_buf_release(pSMB); @@ -5138,9 +5050,8 @@ setPermsRetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("SetPathInfo (perms) returned %d", rc)); - } if (pSMB) cifs_buf_release(pSMB); @@ -5615,9 +5526,8 @@ SetEARetry: pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { + if (rc) cFYI(1, ("SetPathInfo (EA) returned %d", rc)); - } cifs_buf_release(pSMB); diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 699ec119840..4e83b47c4b3 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -3,7 +3,7 @@ * * vfs operations that deal with dentries * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -111,16 +111,6 @@ cifs_bp_rename_retry: return full_path; } -/* char * build_wildcard_path_from_dentry(struct dentry *direntry) -{ - if(full_path == NULL) - return full_path; - - full_path[namelen] = '\\'; - full_path[namelen+1] = '*'; - full_path[namelen+2] = 0; -BB remove above eight lines BB */ - /* Inode operations in similar order to how they appear in Linux file fs.h */ int @@ -171,9 +161,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, disposition = FILE_OVERWRITE_IF; else if ((oflags & O_CREAT) == O_CREAT) disposition = FILE_OPEN_IF; - else { + else cFYI(1, ("Create flag not set in create function")); - } } /* BB add processing to set equivalent of mode - e.g. via CreateX with @@ -367,7 +356,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { int oplock = 0; u16 fileHandle; - FILE_ALL_INFO * buf; + FILE_ALL_INFO *buf; cFYI(1, ("sfu compat create special file")); @@ -534,9 +523,8 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd) int isValid = 1; if (direntry->d_inode) { - if (cifs_revalidate(direntry)) { + if (cifs_revalidate(direntry)) return 0; - } } else { cFYI(1, ("neg dentry 0x%p name = %s", direntry, direntry->d_name.name)); diff --git a/fs/cifs/dns_resolve.h b/fs/cifs/dns_resolve.h index 073fdc3db41..966e9288930 100644 --- a/fs/cifs/dns_resolve.h +++ b/fs/cifs/dns_resolve.h @@ -1,7 +1,7 @@ /* * fs/cifs/dns_resolve.h -- DNS Resolver upcall management for CIFS DFS * Handles host name to IP address resolution - * + * * Copyright (c) International Business Machines Corp., 2008 * Author(s): Steve French (sfrench@us.ibm.com) * diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c index 995474c9088..7d1d5aa4c43 100644 --- a/fs/cifs/fcntl.c +++ b/fs/cifs/fcntl.c @@ -35,9 +35,8 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags) /* No way on Linux VFS to ask to monitor xattr changes (and no stream support either */ - if (fcntl_notify_flags & DN_ACCESS) { + if (fcntl_notify_flags & DN_ACCESS) cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_ACCESS; - } if (fcntl_notify_flags & DN_MODIFY) { /* What does this mean on directories? */ cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE | @@ -47,9 +46,8 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags) cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_CREATION | FILE_NOTIFY_CHANGE_LAST_WRITE; } - if (fcntl_notify_flags & DN_DELETE) { + if (fcntl_notify_flags & DN_DELETE) cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE; - } if (fcntl_notify_flags & DN_RENAME) { /* BB review this - checking various server behaviors */ cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_DIR_NAME | diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 5f7c374ae89..983557d12b0 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -353,9 +353,9 @@ static int cifs_reopen_file(struct file *file, int can_flush) int disposition = FILE_OPEN; __u16 netfid; - if (file->private_data) { + if (file->private_data) pCifsFile = (struct cifsFileInfo *)file->private_data; - } else + else return -EBADF; xid = GetXid(); @@ -1423,9 +1423,8 @@ static int cifs_writepage(struct page *page, struct writeback_control *wbc) xid = GetXid(); /* BB add check for wbc flags */ page_cache_get(page); - if (!PageUptodate(page)) { + if (!PageUptodate(page)) cFYI(1, ("ppw - page not up to date")); - } /* * Set the "writeback" flag, and clear "dirty" in the radix tree. @@ -1460,9 +1459,9 @@ static int cifs_commit_write(struct file *file, struct page *page, cFYI(1, ("commit write for page %p up to position %lld for %d", page, position, to)); spin_lock(&inode->i_lock); - if (position > inode->i_size) { + if (position > inode->i_size) i_size_write(inode, position); - } + spin_unlock(&inode->i_lock); if (!PageUptodate(page)) { position = ((loff_t)page->index << PAGE_CACHE_SHIFT) + offset; @@ -1596,9 +1595,9 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data, } open_file = (struct cifsFileInfo *)file->private_data; - if ((file->f_flags & O_ACCMODE) == O_WRONLY) { + if ((file->f_flags & O_ACCMODE) == O_WRONLY) cFYI(1, ("attempting read on write only file instance")); - } + for (total_read = 0, current_offset = read_data; read_size > total_read; total_read += bytes_read, current_offset += bytes_read) { @@ -1625,9 +1624,8 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data, smb_read_data + 4 /* RFC1001 length field */ + le16_to_cpu(pSMBr->DataOffset), - bytes_read)) { + bytes_read)) rc = -EFAULT; - } if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); @@ -2026,7 +2024,7 @@ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file) struct cifs_sb_info *cifs_sb; cifs_sb = CIFS_SB(cifsInode->vfs_inode.i_sb); - if ( cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO ) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { /* since no page cache to corrupt on directio we can change size safely */ return 1; diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 47f2621001e..ec26c6aa642 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -490,9 +490,9 @@ int cifs_get_inode_info(struct inode **pinode, if (decode_sfu_inode(inode, le64_to_cpu(pfindData->EndOfFile), search_path, - cifs_sb, xid)) { + cifs_sb, xid)) cFYI(1, ("Unrecognized sfu inode type")); - } + cFYI(1, ("sfu mode 0%o", inode->i_mode)); } else { inode->i_mode |= S_IFREG; @@ -1198,9 +1198,8 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry, } /* if we can not get memory just leave rc as EEXIST */ } - if (rc) { + if (rc) cFYI(1, ("rename rc %d", rc)); - } if ((rc == -EIO) || (rc == -EEXIST)) { int oplock = FALSE; diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c index d24fe6880a0..5c792df13d6 100644 --- a/fs/cifs/ioctl.c +++ b/fs/cifs/ioctl.c @@ -30,7 +30,7 @@ #define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2) -int cifs_ioctl (struct inode *inode, struct file *filep, +int cifs_ioctl(struct inode *inode, struct file *filep, unsigned int command, unsigned long arg) { int rc = -ENOTTY; /* strange error - but the precedent */ diff --git a/fs/cifs/md4.c b/fs/cifs/md4.c index a2415c1a14d..a725c2609d6 100644 --- a/fs/cifs/md4.c +++ b/fs/cifs/md4.c @@ -56,7 +56,7 @@ lshift(__u32 x, int s) /* this applies md4 to 64 byte chunks */ static void -mdfour64(__u32 * M, __u32 * A, __u32 *B, __u32 * C, __u32 *D) +mdfour64(__u32 *M, __u32 *A, __u32 *B, __u32 *C, __u32 *D) { int j; __u32 AA, BB, CC, DD; @@ -137,7 +137,7 @@ mdfour64(__u32 * M, __u32 * A, __u32 *B, __u32 * C, __u32 *D) } static void -copy64(__u32 * M, unsigned char *in) +copy64(__u32 *M, unsigned char *in) { int i; diff --git a/fs/cifs/md5.c b/fs/cifs/md5.c index f13f96d42fc..462bbfefd4b 100644 --- a/fs/cifs/md5.c +++ b/fs/cifs/md5.c @@ -161,7 +161,7 @@ MD5Final(unsigned char digest[16], struct MD5Context *ctx) /* This is the central step in the MD5 algorithm. */ #define MD5STEP(f, w, x, y, z, data, s) \ - ( w += f(x, y, z) + data, w = w<>(32-s), w += x ) + (w += f(x, y, z) + data, w = w<>(32-s), w += x) /* * The core of the MD5 algorithm, this alters an existing MD5 hash to @@ -302,9 +302,8 @@ hmac_md5_init_limK_to_64(const unsigned char *key, int key_len, int i; /* if key is longer than 64 bytes truncate it */ - if (key_len > 64) { + if (key_len > 64) key_len = 64; - } /* start out by storing key in pads */ memset(ctx->k_ipad, 0, sizeof(ctx->k_ipad)); @@ -359,9 +358,9 @@ hmac_md5(unsigned char key[16], unsigned char *data, int data_len, { struct HMACMD5Context ctx; hmac_md5_init_limK_to_64(key, 16, &ctx); - if (data_len != 0) { + if (data_len != 0) hmac_md5_update(data, data_len, &ctx); - } + hmac_md5_final(digest, &ctx); } #endif diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index 15546c2354c..2a42d9fedbb 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -1,7 +1,7 @@ /* * fs/cifs/misc.c * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -320,9 +320,9 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , if (treeCon->ses) { if (treeCon->ses->capabilities & CAP_UNICODE) buffer->Flags2 |= SMBFLG2_UNICODE; - if (treeCon->ses->capabilities & CAP_STATUS32) { + if (treeCon->ses->capabilities & CAP_STATUS32) buffer->Flags2 |= SMBFLG2_ERR_STATUS; - } + /* Uid is not converted */ buffer->Uid = treeCon->ses->Suid; buffer->Mid = GetNextMid(treeCon->ses->server); @@ -610,7 +610,8 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length) buffer = (unsigned char *) smb_buf; for (i = 0, j = 0; i < smb_buf_length; i++, j++) { - if (i % 8 == 0) { /* have reached the beginning of line */ + if (i % 8 == 0) { + /* have reached the beginning of line */ printk(KERN_DEBUG "| "); j = 0; } @@ -621,7 +622,8 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length) else debug_line[1 + (2 * j)] = '_'; - if (i % 8 == 7) { /* reached end of line, time to print ascii */ + if (i % 8 == 7) { + /* reached end of line, time to print ascii */ debug_line[16] = 0; printk(" | %s\n", debug_line); } @@ -631,7 +633,7 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length) debug_line[2 * j] = ' '; debug_line[1 + (2 * j)] = ' '; } - printk( " | %s\n", debug_line); + printk(" | %s\n", debug_line); return; } diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 646e1f06941..7c51e2e9a9f 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -1,7 +1,7 @@ /* * fs/cifs/netmisc.c * - * Copyright (c) International Business Machines Corp., 2002 + * Copyright (c) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * Error mapping routines from Samba libsmb/errormap.c @@ -253,7 +253,8 @@ static const struct { ERRDOS, 87, NT_STATUS_INVALID_PARAMETER_MIX}, { ERRHRD, ERRgeneral, NT_STATUS_INVALID_QUOTA_LOWER}, { ERRHRD, ERRgeneral, NT_STATUS_DISK_CORRUPT_ERROR}, { - ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_INVALID}, { /* mapping changed since shell does lookup on * and expects file not found */ + /* mapping changed since shell does lookup on * expects FileNotFound */ + ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_INVALID}, { ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_NOT_FOUND}, { ERRDOS, ERRalreadyexists, NT_STATUS_OBJECT_NAME_COLLISION}, { ERRHRD, ERRgeneral, NT_STATUS_HANDLE_NOT_WAITABLE}, { @@ -820,7 +821,8 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr) /* old style errors */ /* DOS class smb error codes - map DOS */ - if (smberrclass == ERRDOS) { /* 1 byte field no need to byte reverse */ + if (smberrclass == ERRDOS) { + /* 1 byte field no need to byte reverse */ for (i = 0; i < sizeof(mapping_table_ERRDOS) / @@ -834,7 +836,8 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr) } /* else try next error mapping one to see if match */ } - } else if (smberrclass == ERRSRV) { /* server class of error codes */ + } else if (smberrclass == ERRSRV) { + /* server class of error codes */ for (i = 0; i < sizeof(mapping_table_ERRSRV) / @@ -922,8 +925,8 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time) { struct timespec ts; int sec, min, days, month, year; - SMB_TIME * st = (SMB_TIME *)&time; - SMB_DATE * sd = (SMB_DATE *)&date; + SMB_TIME *st = (SMB_TIME *)&time; + SMB_DATE *sd = (SMB_DATE *)&date; cFYI(1, ("date %d time %d", date, time)); diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 0f22def4bdf..89aae6cb32f 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -3,7 +3,7 @@ * * Directory search handling * - * Copyright (C) International Business Machines Corp., 2004, 2007 + * Copyright (C) International Business Machines Corp., 2004, 2008 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -42,15 +42,12 @@ static void dump_cifs_file_struct(struct file *file, char *label) cFYI(1, ("empty cifs private file data")); return; } - if (cf->invalidHandle) { + if (cf->invalidHandle) cFYI(1, ("invalid handle")); - } - if (cf->srch_inf.endOfSearch) { + if (cf->srch_inf.endOfSearch) cFYI(1, ("end of search")); - } - if (cf->srch_inf.emptyDir) { + if (cf->srch_inf.emptyDir) cFYI(1, ("empty dir")); - } } } #endif /* DEBUG2 */ @@ -150,7 +147,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime)); } else { /* legacy, OS2 and DOS style */ /* struct timespec ts;*/ - FIND_FILE_STANDARD_INFO * pfindData = + FIND_FILE_STANDARD_INFO *pfindData = (FIND_FILE_STANDARD_INFO *)buf; tmp_inode->i_mtime = cnvrtDosUnixTm( @@ -198,9 +195,8 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, if (attr & ATTR_DIRECTORY) { *pobject_type = DT_DIR; /* override default perms since we do not lock dirs */ - if (atomic_read(&cifsInfo->inUse) == 0) { + if (atomic_read(&cifsInfo->inUse) == 0) tmp_inode->i_mode = cifs_sb->mnt_dir_mode; - } tmp_inode->i_mode |= S_IFDIR; } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && (attr & ATTR_SYSTEM)) { @@ -231,9 +227,8 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, } /* could add code here - to validate if device or weird share type? */ /* can not fill in nlink here as in qpathinfo version and Unx search */ - if (atomic_read(&cifsInfo->inUse) == 0) { + if (atomic_read(&cifsInfo->inUse) == 0) atomic_set(&cifsInfo->inUse, 1); - } spin_lock(&tmp_inode->i_lock); if (is_size_safe_to_change(cifsInfo, end_of_file)) { @@ -461,9 +456,8 @@ static int initiate_cifs_search(const int xid, struct file *file) full_path = build_path_from_dentry(file->f_path.dentry); - if (full_path == NULL) { + if (full_path == NULL) return -ENOMEM; - } cFYI(1, ("Full path: %s start at: %lld", full_path, file->f_pos)); @@ -471,9 +465,9 @@ ffirst_retry: /* test for Unix extensions */ /* but now check for them on the share/mount not on the SMB session */ /* if (pTcon->ses->capabilities & CAP_UNIX) { */ - if (pTcon->unix_ext) { + if (pTcon->unix_ext) cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX; - } else if ((pTcon->ses->capabilities & + else if ((pTcon->ses->capabilities & (CAP_NT_SMBS | CAP_NT_FIND)) == 0) { cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD; } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { @@ -514,10 +508,10 @@ static int cifs_unicode_bytelen(char *str) static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) { char *new_entry; - FILE_DIRECTORY_INFO * pDirInfo = (FILE_DIRECTORY_INFO *)old_entry; + FILE_DIRECTORY_INFO *pDirInfo = (FILE_DIRECTORY_INFO *)old_entry; if (level == SMB_FIND_FILE_INFO_STANDARD) { - FIND_FILE_STANDARD_INFO * pfData; + FIND_FILE_STANDARD_INFO *pfData; pfData = (FIND_FILE_STANDARD_INFO *)pDirInfo; new_entry = old_entry + sizeof(FIND_FILE_STANDARD_INFO) + @@ -553,7 +547,7 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) int len = 0; if (cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) { - FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; + FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; if (cfile->srch_inf.unicode) { len = cifs_unicode_bytelen(filename); @@ -562,30 +556,30 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) len = strnlen(filename, 5); } } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) { - FILE_DIRECTORY_INFO * pFindData = + FILE_DIRECTORY_INFO *pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { - FILE_FULL_DIRECTORY_INFO * pFindData = + FILE_FULL_DIRECTORY_INFO *pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { - SEARCH_ID_FULL_DIR_INFO * pFindData = + SEARCH_ID_FULL_DIR_INFO *pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { - FILE_BOTH_DIRECTORY_INFO * pFindData = + FILE_BOTH_DIRECTORY_INFO *pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) { - FIND_FILE_STANDARD_INFO * pFindData = + FIND_FILE_STANDARD_INFO *pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; len = pFindData->FileNameLength; @@ -718,7 +712,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, pos_in_buf = index_to_find - first_entry_in_buffer; cFYI(1, ("found entry - pos_in_buf %d", pos_in_buf)); - for (i=0; (i < (pos_in_buf)) && (current_entry != NULL); i++) { + for (i = 0; (i < (pos_in_buf)) && (current_entry != NULL); i++) { /* go entry by entry figuring out which is first */ current_entry = nxt_dir_entry(current_entry, end_of_smb, cifsFile->srch_inf.info_level); @@ -793,7 +787,7 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst, filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (level == SMB_FIND_FILE_INFO_STANDARD) { - FIND_FILE_STANDARD_INFO * pFindData = + FIND_FILE_STANDARD_INFO *pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; /* one byte length, no name conversion */ @@ -928,7 +922,7 @@ static int cifs_save_resume_key(const char *current_entry, level = cifsFile->srch_inf.info_level; if (level == SMB_FIND_FILE_UNIX) { - FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; + FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; if (cifsFile->srch_inf.unicode) { diff --git a/fs/cifs/smbdes.c b/fs/cifs/smbdes.c index cfa6d21fb4e..04943c976f9 100644 --- a/fs/cifs/smbdes.c +++ b/fs/cifs/smbdes.c @@ -114,42 +114,42 @@ static uchar sbox[8][4][16] = { {{14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7}, {0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8}, {4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0}, - {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13}}, + {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13} }, {{15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10}, {3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5}, {0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15}, - {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9}}, + {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9} }, {{10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8}, {13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1}, {13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7}, - {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12}}, + {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12} }, {{7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15}, {13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9}, {10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4}, - {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14}}, + {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14} }, {{2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9}, {14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6}, {4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14}, - {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3}}, + {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3} }, {{12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11}, {10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8}, {9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6}, - {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13}}, + {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13} }, {{4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1}, {13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6}, {1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2}, - {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12}}, + {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12} }, {{13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7}, {1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2}, {7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8}, - {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11}} + {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11} } }; static void @@ -313,9 +313,8 @@ str_to_key(unsigned char *str, unsigned char *key) key[5] = ((str[4] & 0x1F) << 2) | (str[5] >> 6); key[6] = ((str[5] & 0x3F) << 1) | (str[6] >> 7); key[7] = str[6] & 0x7F; - for (i = 0; i < 8; i++) { + for (i = 0; i < 8; i++) key[i] = (key[i] << 1); - } } static void @@ -344,9 +343,8 @@ smbhash(unsigned char *out, unsigned char *in, unsigned char *key, int forw) dohash(outb, inb, keyb, forw); - for (i = 0; i < 8; i++) { + for (i = 0; i < 8; i++) out[i] = 0; - } for (i = 0; i < 64; i++) { if (outb[i]) diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 50b623ad932..48cdab0e70e 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -1,7 +1,7 @@ /* * fs/cifs/transport.c * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * Jeremy Allison (jra@samba.org) 2006. * @@ -358,9 +358,9 @@ static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf, } else if (ses->status != CifsGood) { /* check if SMB session is bad because we are setting it up */ if ((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) && - (in_buf->Command != SMB_COM_NEGOTIATE)) { + (in_buf->Command != SMB_COM_NEGOTIATE)) return -EAGAIN; - } /* else ok - we are setting up session */ + /* else ok - we are setting up session */ } *ppmidQ = AllocMidQEntry(in_buf, ses); if (*ppmidQ == NULL) diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index 54e8ef96cb7..8cd6a445b01 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -139,9 +139,9 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name, } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) { if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto set_ea_exit; - if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) { + if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) cFYI(1, ("attempt to set cifs inode metadata")); - } + ea_name += 5; /* skip past user. prefix */ rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value, (__u16)value_size, cifs_sb->local_nls, @@ -262,7 +262,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); #ifdef CONFIG_CIFS_EXPERIMENTAL - else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { + else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { __u16 fid; int oplock = FALSE; struct cifs_ntsd *pacl = NULL; @@ -303,11 +303,10 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, } else if (strncmp(ea_name, CIFS_XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0) { cFYI(1, ("Security xattr namespace not supported yet")); - } else { + } else cFYI(1, ("illegal xattr request %s (only user namespace supported)", ea_name)); - } /* We could add an additional check for streams ie if proc/fs/cifs/streamstoxattr is set then -- GitLab From 7cc718d56c8297bd3a3c106ca09e8abf9814bb27 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 10 Feb 2008 11:21:54 +0100 Subject: [PATCH 035/923] slab: avoid double initialization & do initialization in 1 place - alloc_slabmgmt: initialize all slab fields in 1 place - slab->nodeid was initialized twice: in alloc_slabmgmt and immediately after it in cache_grow Signed-off-by: Marcin Slusarz CC: Christoph Lameter Reviewed-by: Pekka Enberg Signed-off-by: Christoph Lameter --- mm/slab.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/slab.c b/mm/slab.c index 40c00dacbe4..473e6c2eaef 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2630,6 +2630,7 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep, void *objp, slabp->colouroff = colour_off; slabp->s_mem = objp + colour_off; slabp->nodeid = nodeid; + slabp->free = 0; return slabp; } @@ -2683,7 +2684,6 @@ static void cache_init_objs(struct kmem_cache *cachep, slab_bufctl(slabp)[i] = i + 1; } slab_bufctl(slabp)[i - 1] = BUFCTL_END; - slabp->free = 0; } static void kmem_flagcheck(struct kmem_cache *cachep, gfp_t flags) @@ -2816,7 +2816,6 @@ static int cache_grow(struct kmem_cache *cachep, if (!slabp) goto opps1; - slabp->nodeid = nodeid; slab_map_pages(cachep, slabp, objp); cache_init_objs(cachep, slabp); -- GitLab From 90c81e0b0eda214196cbe4340facbce8cc797ee7 Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 12 Feb 2008 20:32:36 +0000 Subject: [PATCH 036/923] [CIFS] clean up some hard to read ifdefs Christoph had noticed too many ifdefs in the CIFS code making it hard to read. This patch removes about a quarter of them from the C files in cifs by improving a few key ifdefs in the .h files. Signed-off-by: Steve French --- fs/cifs/cifs_debug.c | 14 +++++++++++--- fs/cifs/cifs_debug.h | 3 +++ fs/cifs/cifsacl.c | 44 +++++++++++--------------------------------- fs/cifs/cifsfs.c | 10 +--------- fs/cifs/cifsproto.h | 8 ++++++-- fs/cifs/cifssmb.c | 6 ++---- fs/cifs/connect.c | 10 ++++------ fs/cifs/file.c | 13 ++++--------- fs/cifs/inode.c | 4 +--- fs/cifs/netmisc.c | 8 ++------ fs/cifs/readdir.c | 6 ++++-- fs/cifs/sess.c | 4 ---- fs/cifs/transport.c | 5 ++--- 13 files changed, 51 insertions(+), 84 deletions(-) diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 4bd863716f7..892fc70cc95 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -438,7 +438,7 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset, return length; } -#endif +#endif /* STATS */ static struct proc_dir_entry *proc_fs_cifs; read_proc_t cifs_txanchor_read; @@ -481,7 +481,7 @@ cifs_proc_init(void) cifs_stats_read, NULL); if (pde) pde->write_proc = cifs_stats_write; -#endif +#endif /* STATS */ pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs, cifsFYI_read, NULL); if (pde) @@ -917,4 +917,12 @@ security_flags_write(struct file *file, const char __user *buffer, /* BB should we turn on MAY flags for other MUST options? */ return count; } -#endif +#else +static inline void cifs_proc_init(void) +{ +} + +static inline void cifs_proc_clean(void) +{ +} +#endif /* PROC_FS */ diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h index 90e7624a254..5eb3b83bbfa 100644 --- a/fs/cifs/cifs_debug.h +++ b/fs/cifs/cifs_debug.h @@ -25,8 +25,11 @@ void cifs_dump_mem(char *label, void *data, int length); #ifdef CONFIG_CIFS_DEBUG2 +#define DBG2 2 void cifs_dump_detail(struct smb_hdr *); void cifs_dump_mids(struct TCP_Server_Info *); +#else +#define DBG2 0 #endif extern int traceSMB; /* flag which enables the function below */ void dump_smb(struct smb_hdr *, int); diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index 842aaa92168..49485108454 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -215,9 +215,7 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode, if (flags & GENERIC_ALL) { *pmode |= (S_IRWXUGO & (*pbits_to_set)); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("all perms")); -#endif + cFYI(DBG2, ("all perms")); return; } if ((flags & GENERIC_WRITE) || @@ -230,9 +228,7 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode, ((flags & FILE_EXEC_RIGHTS) == FILE_EXEC_RIGHTS)) *pmode |= (S_IXUGO & (*pbits_to_set)); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("access flags 0x%x mode now 0x%x", flags, *pmode)); -#endif + cFYI(DBG2, ("access flags 0x%x mode now 0x%x", flags, *pmode)); return; } @@ -261,9 +257,7 @@ static void mode_to_access_flags(umode_t mode, umode_t bits_to_use, if (mode & S_IXUGO) *pace_flags |= SET_FILE_EXEC_RIGHTS; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("mode: 0x%x, access flags now 0x%x", mode, *pace_flags)); -#endif + cFYI(DBG2, ("mode: 0x%x, access flags now 0x%x", mode, *pace_flags)); return; } @@ -357,11 +351,9 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl, return; } -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("DACL revision %d size %d num aces %d", + cFYI(DBG2, ("DACL revision %d size %d num aces %d", le16_to_cpu(pdacl->revision), le16_to_cpu(pdacl->size), le32_to_cpu(pdacl->num_aces))); -#endif /* reset rwx permissions for user/group/other. Also, if num_aces is 0 i.e. DACL has no ACEs, @@ -494,13 +486,11 @@ static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len, le32_to_cpu(pntsd->gsidoffset)); dacloffset = le32_to_cpu(pntsd->dacloffset); dacl_ptr = (struct cifs_acl *)((char *)pntsd + dacloffset); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x " + cFYI(DBG2, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x " "sacloffset 0x%x dacloffset 0x%x", pntsd->revision, pntsd->type, le32_to_cpu(pntsd->osidoffset), le32_to_cpu(pntsd->gsidoffset), le32_to_cpu(pntsd->sacloffset), dacloffset)); -#endif /* cifs_dump_mem("owner_sid: ", owner_sid_ptr, 64); */ rc = parse_sid(owner_sid_ptr, end_of_acl); if (rc) @@ -635,9 +625,7 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen, struct super_block *sb; struct cifs_sb_info *cifs_sb; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("set ACL for %s from mode 0x%x", path, inode->i_mode)); -#endif + cFYI(DBG2, ("set ACL for %s from mode 0x%x", path, inode->i_mode)); if (!inode) return (rc); @@ -668,9 +656,7 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen, } rc = CIFSSMBSetCIFSACL(xid, cifs_sb->tcon, fid, pnntsd, acllen); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("SetCIFSACL rc = %d", rc)); -#endif + cFYI(DBG2, ("SetCIFSACL rc = %d", rc)); if (unlock_file == TRUE) atomic_dec(&open_file->wrtPending); else @@ -688,9 +674,7 @@ void acl_to_uid_mode(struct inode *inode, const char *path) u32 acllen = 0; int rc = 0; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("converting ACL to mode for %s", path)); -#endif + cFYI(DBG2, ("converting ACL to mode for %s", path)); pntsd = get_cifs_acl(&acllen, inode, path); /* if we can retrieve the ACL, now parse Access Control Entries, ACEs */ @@ -711,9 +695,7 @@ int mode_to_acl(struct inode *inode, const char *path, __u64 nmode) struct cifs_ntsd *pntsd = NULL; /* acl obtained from server */ struct cifs_ntsd *pnntsd = NULL; /* modified acl to be sent to server */ -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("set ACL from mode for %s", path)); -#endif + cFYI(DBG2, ("set ACL from mode for %s", path)); /* Get the security descriptor */ pntsd = get_cifs_acl(&acllen, inode, path); @@ -735,16 +717,12 @@ int mode_to_acl(struct inode *inode, const char *path, __u64 nmode) rc = build_sec_desc(pntsd, pnntsd, acllen, inode, nmode); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("build_sec_desc rc: %d", rc)); -#endif + cFYI(DBG2, ("build_sec_desc rc: %d", rc)); if (!rc) { /* Set the security descriptor */ rc = set_cifs_acl(pnntsd, acllen, inode, path); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("set_cifs_acl rc: %d", rc)); -#endif + cFYI(DBG2, ("set_cifs_acl rc: %d", rc)); } kfree(pnntsd); diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index bca6a69aaf2..ff57ad4efe8 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -470,9 +470,7 @@ static void cifs_umount_begin(struct vfsmount *vfsmnt, int flags) struct cifs_sb_info *cifs_sb; struct cifsTconInfo *tcon; -#ifdef CONFIG_CIFS_DFS_UPCALL dfs_shrink_umount_helper(vfsmnt); -#endif /* CONFIG CIFS_DFS_UPCALL */ if (!(flags & MNT_FORCE)) return; @@ -991,9 +989,7 @@ static int __init init_cifs(void) { int rc = 0; -#ifdef CONFIG_PROC_FS cifs_proc_init(); -#endif /* INIT_LIST_HEAD(&GlobalServerList);*/ /* BB not implemented yet */ INIT_LIST_HEAD(&GlobalSMBSessionList); INIT_LIST_HEAD(&GlobalTreeConnectionList); @@ -1094,19 +1090,15 @@ init_cifs(void) out_destroy_inodecache: cifs_destroy_inodecache(); out_clean_proc: -#ifdef CONFIG_PROC_FS cifs_proc_clean(); -#endif return rc; } static void __exit exit_cifs(void) { - cFYI(0, ("exit_cifs")); -#ifdef CONFIG_PROC_FS + cFYI(DBG2, ("exit_cifs")); cifs_proc_clean(); -#endif #ifdef CONFIG_CIFS_DFS_UPCALL unregister_key_type(&key_type_dns_resolver); #endif diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 6355ff841f3..50f3eede93b 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -102,9 +102,13 @@ extern int mode_to_acl(struct inode *inode, const char *path, __u64); extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *, const char *); extern int cifs_umount(struct super_block *, struct cifs_sb_info *); -#ifdef CONFIG_CIFS_DFS_UPCALL +#ifdef CONFIG_CIFS_DFS extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt); -#endif +#else +static inline void dfs_shrink_umount_helper(struct vfsmount *vfsmnt) +{ +} +#endif /* DFS_UPCALL */ void cifs_proc_init(void); void cifs_proc_clean(void); diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 4b69d1cea65..30bbe448e26 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -602,7 +602,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); - cFYI(0, ("Max buf = %d", ses->server->maxBuf)); + cFYI(DBG2, ("Max buf = %d", ses->server->maxBuf)); GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); server->capabilities = le32_to_cpu(pSMBr->Capabilities); server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); @@ -1108,9 +1108,7 @@ PsxCreat: /* check to make sure response data is there */ if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) { pRetData->Type = cpu_to_le32(-1); /* unknown */ -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("unknown type")); -#endif + cFYI(DBG2, ("unknown type")); } else { if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) + sizeof(FILE_UNIX_BASIC_INFO)) { diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 65d0ba72e78..5ccd8b710cc 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1753,9 +1753,8 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, if (sb && (CIFS_SB(sb)->rsize > 127 * 1024)) { if ((cap & CIFS_UNIX_LARGE_READ_CAP) == 0) { CIFS_SB(sb)->rsize = 127 * 1024; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("larger reads not supported by srv")); -#endif + cFYI(DBG2, + ("larger reads not supported by srv")); } } @@ -2227,9 +2226,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) { cifs_sb->rsize = 1024 * 127; -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("no very large read support, rsize now 127K")); -#endif + cFYI(DBG2, + ("no very large read support, rsize now 127K")); } if (!(tcon->ses->capabilities & CAP_LARGE_WRITE_X)) cifs_sb->wsize = min(cifs_sb->wsize, diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 983557d12b0..fa849c91d32 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -499,9 +499,8 @@ int cifs_close(struct inode *inode, struct file *file) the struct would be in each open file, but this should give enough time to clear the socket */ -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("close delay, write pending")); -#endif /* DEBUG2 */ + cFYI(DBG2, + ("close delay, write pending")); msleep(timeout); timeout *= 4; } @@ -1812,9 +1811,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, pTcon = cifs_sb->tcon; pagevec_init(&lru_pvec, 0); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("rpages: num pages %d", num_pages)); -#endif + cFYI(DBG2, ("rpages: num pages %d", num_pages)); for (i = 0; i < num_pages; ) { unsigned contig_pages; struct page *tmp_page; @@ -1847,10 +1844,8 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, /* Read size needs to be in multiples of one page */ read_size = min_t(const unsigned int, read_size, cifs_sb->rsize & PAGE_CACHE_MASK); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("rpages: read size 0x%x contiguous pages %d", + cFYI(DBG2, ("rpages: read size 0x%x contiguous pages %d", read_size, contig_pages)); -#endif rc = -EAGAIN; while (rc == -EAGAIN) { if ((open_file->invalidHandle) && diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index ec26c6aa642..6020add1515 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -837,9 +837,7 @@ static void posix_fill_in_inode(struct inode *tmp_inode, cFYI(1, ("unknown inode type %d", type)); } -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("object type: %d", type)); -#endif + cFYI(DBG2, ("object type: %d", type)); tmp_inode->i_uid = le64_to_cpu(pData->Uid); tmp_inode->i_gid = le64_to_cpu(pData->Gid); tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks); diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 7c51e2e9a9f..3b5a5ce882b 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -150,9 +150,7 @@ static int canonicalize_unc(char *cp) if (cp[i] == '\\') break; if (cp[i] == '/') { -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("change slash to backslash in malformed UNC")); -#endif + cFYI(DBG2, ("change slash to \\ in malformed UNC")); cp[i] = '\\'; return 1; } @@ -178,9 +176,7 @@ cifs_inet_pton(int address_family, char *cp, void *dst) } else if (address_family == AF_INET6) { ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL); } -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("address conversion returned %d for %s", ret, cp)); -#endif + cFYI(DBG2, ("address conversion returned %d for %s", ret, cp)); if (ret > 0) ret = 1; return ret; diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 89aae6cb32f..32b445edc88 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -50,6 +50,10 @@ static void dump_cifs_file_struct(struct file *file, char *label) cFYI(1, ("empty dir")); } } +#else +static inline void dump_cifs_file_struct(struct file *file, char *label) +{ +} #endif /* DEBUG2 */ /* Returns one if new inode created (which therefore needs to be hashed) */ @@ -660,9 +664,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, . and .. for the root of a drive and for those we need to start two entries earlier */ -#ifdef CONFIG_CIFS_DEBUG2 dump_cifs_file_struct(file, "In fce "); -#endif if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) && is_dir_changed(file)) || (index_to_find < first_entry_in_buffer)) { diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index d2153abcba6..ed150efbe27 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -417,10 +417,6 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, calc_lanman_hash(ses, lnm_session_key); ses->flags |= CIFS_SES_LANMAN; -/* #ifdef CONFIG_CIFS_DEBUG2 - cifs_dump_mem("cryptkey: ",ses->server->cryptKey, - CIFS_SESS_KEY_SIZE); -#endif */ memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_SESS_KEY_SIZE); bcc_ptr += CIFS_SESS_KEY_SIZE; diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 48cdab0e70e..3612d6c0a0b 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -437,9 +437,8 @@ SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses, iov[0].iov_len = in_buf->smb_buf_length + 4; flags |= CIFS_NO_RESP; rc = SendReceive2(xid, ses, iov, 1, &resp_buf_type, flags); -#ifdef CONFIG_CIFS_DEBUG2 - cFYI(1, ("SendRcvNoR flags %d rc %d", flags, rc)); -#endif + cFYI(DBG2, ("SendRcvNoRsp flags %d rc %d", flags, rc)); + return rc; } -- GitLab From 6f7e8f376360c789cf84a0321960dcef8bf92aff Mon Sep 17 00:00:00 2001 From: Roel Kluin <12o3l@tiscali.nl> Date: Tue, 12 Feb 2008 20:38:10 +0000 Subject: [PATCH 037/923] [CIFS] Fix typo in quota operations Although these experimental operations are not fully implemented, fix the typo in the definition of the quotactl operations for cifs. Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Steve French --- fs/cifs/cifsfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index ff57ad4efe8..29bbf655b99 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -459,7 +459,7 @@ int cifs_xstate_get(struct super_block *sb, struct fs_quota_stat *qstats) static struct quotactl_ops cifs_quotactl_ops = { .set_xquota = cifs_xquota_set, - .get_xquota = cifs_xquota_set, + .get_xquota = cifs_xquota_get, .set_xstate = cifs_xstate_set, .get_xstate = cifs_xstate_get, }; -- GitLab From d9f382eff6fbabcd09dad4558d1797c267e9746e Mon Sep 17 00:00:00 2001 From: Shirish Pargaonkar Date: Tue, 12 Feb 2008 20:46:26 +0000 Subject: [PATCH 038/923] [CIFS] patch to fix incorrect encoding of number of aces on set mode This patch fixes an error in the experimental cifs acl code. During chmod, set security descriptor data (num aces) is not sent with little-endian encoding. Signed-off-by: Shirish Pargaonkar Signed-off-by: Steve French --- fs/cifs/cifsacl.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index 49485108454..f93932c2177 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -372,10 +372,6 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl, ppace = kmalloc(num_aces * sizeof(struct cifs_ace *), GFP_KERNEL); -/* cifscred->cecount = pdacl->num_aces; - cifscred->aces = kmalloc(num_aces * - sizeof(struct cifs_ace *), GFP_KERNEL);*/ - for (i = 0; i < num_aces; ++i) { ppace[i] = (struct cifs_ace *) (acl_base + acl_size); #ifdef CONFIG_CIFS_DEBUG2 @@ -428,7 +424,7 @@ static int set_chmod_dacl(struct cifs_acl *pndacl, struct cifs_sid *pownersid, &sid_everyone, nmode, S_IRWXO); pndacl->size = cpu_to_le16(size + sizeof(struct cifs_acl)); - pndacl->num_aces = 3; + pndacl->num_aces = cpu_to_le32(3); return (0); } -- GitLab From c1ce264470f000ccd5965d3718f7d905d559fd64 Mon Sep 17 00:00:00 2001 From: Steve French Date: Wed, 13 Feb 2008 02:59:36 +0000 Subject: [PATCH 039/923] [CIFS] fix typo Signed-off-by: Steve French --- fs/cifs/cifsproto.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 50f3eede93b..0af63e6b426 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -102,7 +102,7 @@ extern int mode_to_acl(struct inode *inode, const char *path, __u64); extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *, const char *); extern int cifs_umount(struct super_block *, struct cifs_sb_info *); -#ifdef CONFIG_CIFS_DFS +#ifdef CONFIG_CIFS_DFS_UPCALL extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt); #else static inline void dfs_shrink_umount_helper(struct vfsmount *vfsmnt) -- GitLab From e48a411fa097c386c6081f4ed5a952aa3e21ca2b Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Mon, 11 Feb 2008 16:55:19 +0100 Subject: [PATCH 040/923] AVR32: Define PAGE_SHARED The virtual framebuffer driver needs PAGE_SHARED, which is not defined on avr32. Define it. Reported-by: Oliver Zander Signed-off-by: Haavard Skinnemoen --- include/asm-avr32/pgtable.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/asm-avr32/pgtable.h b/include/asm-avr32/pgtable.h index 018f6e2a024..3ae7b548fce 100644 --- a/include/asm-avr32/pgtable.h +++ b/include/asm-avr32/pgtable.h @@ -157,6 +157,7 @@ extern struct page *empty_zero_page; #define _PAGE_S(x) _PAGE_NORMAL(x) #define PAGE_COPY _PAGE_P(PAGE_WRITE | PAGE_READ) +#define PAGE_SHARED _PAGE_S(PAGE_WRITE | PAGE_READ) #ifndef __ASSEMBLY__ /* -- GitLab From 32019828d9012e584017a824f84798248c0060dd Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Wed, 13 Feb 2008 12:32:34 +0100 Subject: [PATCH 041/923] avr32: Fix broken pte dump code in do_page_fault() The per-task page tables only cover the first 2GiB of the address space. For kernel addresses, we need to do the lookup in init's page tables. This is a temporary workaround until we modify the per-task page tables to cover the whole 4GiB address space. Signed-off-by: Haavard Skinnemoen --- arch/avr32/mm/fault.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c index 6560cb18b4e..ce4e4296b95 100644 --- a/arch/avr32/mm/fault.c +++ b/arch/avr32/mm/fault.c @@ -189,6 +189,8 @@ no_context: page = sysreg_read(PTBR); printk(KERN_ALERT "ptbr = %08lx", page); + if (address >= TASK_SIZE) + page = (unsigned long)swapper_pg_dir; if (page) { page = ((unsigned long *)page)[address >> 22]; printk(" pgd = %08lx", page); -- GitLab From f059267e7fa9e3efa1498eb963ba18ec25665c42 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Wed, 13 Feb 2008 14:29:30 +0100 Subject: [PATCH 042/923] avr32: Use correct config symbol in atstk1004 board code CONFIG_BOARD_ATSTK1002_SW2_CUSTOM should be CONFIG_BOARD_ATSTK100X_SW2_CUSTOM. Spotted by Robert P. J. Day. Signed-off-by: Haavard Skinnemoen --- arch/avr32/boards/atstk1000/atstk1004.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/avr32/boards/atstk1000/atstk1004.c b/arch/avr32/boards/atstk1000/atstk1004.c index 5a77030e07a..e765a8652b3 100644 --- a/arch/avr32/boards/atstk1000/atstk1004.c +++ b/arch/avr32/boards/atstk1000/atstk1004.c @@ -129,7 +129,7 @@ static int __init atstk1004_init(void) #ifdef CONFIG_BOARD_ATSTK100X_SPI1 at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info)); #endif -#ifndef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM +#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM at32_add_device_mci(0); #endif at32_add_device_lcdc(0, &atstk1000_lcdc_data, -- GitLab From 03a143c909b808759f188a45c75acb8f043cb209 Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 14 Feb 2008 06:38:30 +0000 Subject: [PATCH 043/923] [CIFS] fixup prefixpaths which contain multiple path components Currently, when we get a prefixpath as part of mount, the kernel only changes the first character to be a '/' or '\' depending on whether posix extensions are enabled. This is problematic as it expects mount.cifs to pass in the correct delimiter in the rest of the prefixpath. But, mount.cifs may not know *what* the correct delimiter is. It's a chicken and egg problem. Note that mount.cifs should not do conversion of the prefixpath - if we want posix behavior then '\' is legal in a path (and we have had bugs in the distant path to prove to me that customers sometimes have apps that require '\'). The kernel code assumes that the path passed in is posix (and current code will handle the first path component fine but was broken for Windows mounts for "deep" prefixpaths unless the user specified a prefixpath with '\' deep in it. So e.g. with current kernel code: 1) mount to //server/share/dir1 will work to all server types 2) mount to //server/share/dir1/subdir1 will work to Samba 3) mount to //server/share/dir1\\subdir1 will work to Windows But case two would fail to Windows without the fix. With the kernel cifs module fix case two now works. First analyzed by Jeff Layton and Simo Sorce CC: Jeff Layton CC: Simo Sorce Signed-off-by: Steve French --- fs/cifs/CHANGES | 4 +++- fs/cifs/connect.c | 23 ++++++++++++++++++++++- 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index edd248367b3..dbd91461853 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -6,7 +6,9 @@ and sync so that events like out of disk space get reported properly on cached files. Fix setxattr failure to certain Samba versions. Fix mount of second share to disconnected server session (autoreconnect on this). Add ability to modify cifs acls for handling chmod (when mounted with -cifsacl flag). +cifsacl flag). Fix prefixpath path separator so we can handle mounts +with prefixpaths longer than one directory (one path component) when +mounted to Windows servers. Version 1.51 ------------ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 5ccd8b710cc..e111c69139b 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1791,6 +1791,20 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, } } +static void +convert_delimiter(char *path, char delim) +{ + int i; + + if (path == NULL) + return; + + for (i = 0; path[i] != '\0'; i++) { + if ((path[i] == '/') || (path[i] == '\\')) + path[i] = delim; + } +} + int cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, char *mount_data, const char *devname) @@ -2056,7 +2070,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, cifs_sb->prepath = volume_info.prepath; if (cifs_sb->prepath) { cifs_sb->prepathlen = strlen(cifs_sb->prepath); - cifs_sb->prepath[0] = CIFS_DIR_SEP(cifs_sb); + /* we can not convert the / to \ in the path + separators in the prefixpath yet because we do not + know (until reset_cifs_unix_caps is called later) + whether POSIX PATH CAP is available. We normalize + the / to \ after reset_cifs_unix_caps is called */ volume_info.prepath = NULL; } else cifs_sb->prepathlen = 0; @@ -2224,6 +2242,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, else tcon->unix_ext = 0; /* server does not support them */ + /* convert forward to back slashes in prepath here if needed */ + convert_delimiter(cifs_sb->prepath, CIFS_DIR_SEP(cifs_sb)); + if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) { cifs_sb->rsize = 1024 * 127; cFYI(DBG2, -- GitLab From d45ad06273f797f6239b97fd9962ecd81eec847f Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Fri, 15 Feb 2008 14:38:40 +0100 Subject: [PATCH 044/923] avr32: Call tick_nohz_{stop,restart}_sched_tick() in idle loop This fixes a hang on boot with nohz enabled. nohz is not actually supported in mainline yet, but patches that add support for it are currently under review. When nohz is compiled out, the functions are no-ops, so this patch results in no functional change, but it arguably makes the code more correct. Signed-off-by: Haavard Skinnemoen --- arch/avr32/kernel/process.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c index eaaa69bbdc3..faf8d0e7680 100644 --- a/arch/avr32/kernel/process.c +++ b/arch/avr32/kernel/process.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -30,8 +31,10 @@ void cpu_idle(void) { /* endless idle loop with no priority at all */ while (1) { + tick_nohz_stop_sched_tick(); while (!need_resched()) cpu_idle_sleep(); + tick_nohz_restart_sched_tick(); preempt_enable_no_resched(); schedule(); preempt_disable(); -- GitLab From 642be6ec218b956fbae88304449720f76ba0d578 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 25 Feb 2008 17:20:46 -0500 Subject: [PATCH 045/923] Remove incorrect BKL comments in ext4 Signed-off-by: Andi Kleen Signed-off-by: "Theodore Ts'o" --- fs/ext4/dir.c | 2 +- fs/ext4/inode.c | 1 - 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index 33888bb5814..2c23bade9aa 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -46,7 +46,7 @@ const struct file_operations ext4_dir_operations = { #ifdef CONFIG_COMPAT .compat_ioctl = ext4_compat_ioctl, #endif - .fsync = ext4_sync_file, /* BKL held */ + .fsync = ext4_sync_file, .release = ext4_release_dir, }; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 7dd9b50d5eb..d3c6f58a9de 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -768,7 +768,6 @@ err_out: * * `handle' can be NULL if create == 0. * - * The BKL may not be held on entry here. Be sure to take it early. * return > 0, # of blocks mapped or allocated. * return = 0, if plain lookup failed. * return < 0, error case. -- GitLab From 55bd725aa3a83b3935988f37275b5a80e10d4169 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Fri, 15 Feb 2008 12:47:21 -0500 Subject: [PATCH 046/923] ext4: Fix locking hierarchy violation in ext4_fallocate() ext4_fallocate() was trying to acquire i_data_sem outside of jbd2_start_transaction/jbd2_journal_stop, which violates ext4's locking hierarchy. So we take i_mutex to prevent writes and truncates during the complete fallocate operation, and use ext4_get_block_wrap() which acquires and releases i_data_sem for each block allocation. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index bc7081f1fbe..e856f660fc3 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2623,7 +2623,7 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len) * modify 1 super block, 1 block bitmap and 1 group descriptor. */ credits = EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + 3; - down_write((&EXT4_I(inode)->i_data_sem)); + mutex_lock(&inode->i_mutex); retry: while (ret >= 0 && ret < max_blocks) { block = block + ret; @@ -2634,7 +2634,7 @@ retry: break; } - ret = ext4_ext_get_blocks(handle, inode, block, + ret = ext4_get_blocks_wrap(handle, inode, block, max_blocks, &map_bh, EXT4_CREATE_UNINITIALIZED_EXT, 0); WARN_ON(ret <= 0); @@ -2680,7 +2680,6 @@ retry: if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) goto retry; - up_write((&EXT4_I(inode)->i_data_sem)); /* * Time to update the file size. * Update only when preallocation was requested beyond the file size. @@ -2692,21 +2691,18 @@ retry: * if no error, we assume preallocation succeeded * completely */ - mutex_lock(&inode->i_mutex); i_size_write(inode, offset + len); EXT4_I(inode)->i_disksize = i_size_read(inode); - mutex_unlock(&inode->i_mutex); } else if (ret < 0 && nblocks) { /* Handle partial allocation scenario */ loff_t newsize; - mutex_lock(&inode->i_mutex); newsize = (nblocks << blkbits) + i_size_read(inode); i_size_write(inode, EXT4_BLOCK_ALIGN(newsize, blkbits)); EXT4_I(inode)->i_disksize = i_size_read(inode); - mutex_unlock(&inode->i_mutex); } } + mutex_unlock(&inode->i_mutex); return ret > 0 ? ret2 : ret; } -- GitLab From 8aad018b6c1a0257b37cdf7c90cdbee2353150fd Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Fri, 15 Feb 2008 18:21:49 +0000 Subject: [PATCH 047/923] [CIFS] Fix mixed case name in structure dfs_info3_param Signed-off-by: Igor Mammedov Signed-off-by: Steve French --- fs/cifs/cifs_dfs_ref.c | 2 +- fs/cifs/cifsglob.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c index 413ee2349d1..dd3bba4134b 100644 --- a/fs/cifs/cifs_dfs_ref.c +++ b/fs/cifs/cifs_dfs_ref.c @@ -286,7 +286,7 @@ static void dump_referral(const struct dfs_info3_param *ref) cFYI(1, ("DFS: node path: %s", ref->node_name)); cFYI(1, ("DFS: fl: %hd, srv_type: %hd", ref->flags, ref->server_type)); cFYI(1, ("DFS: ref_flags: %hd, path_consumed: %hd", ref->ref_flag, - ref->PathConsumed)); + ref->path_consumed)); } diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 5d32d8ddc82..69a2e194254 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -454,7 +454,7 @@ struct dir_notify_req { struct dfs_info3_param { int flags; /* DFSREF_REFERRAL_SERVER, DFSREF_STORAGE_SERVER*/ - int PathConsumed; + int path_consumed; int server_type; int ref_flag; char *path_name; -- GitLab From b73fce69ecb091a178ef9286027c370a63eb25aa Mon Sep 17 00:00:00 2001 From: Valerie Clement Date: Fri, 15 Feb 2008 13:48:51 -0500 Subject: [PATCH 048/923] ext4: Fix kernel BUG at fs/ext4/mballoc.c:910! With the flex_bg feature enabled, a large file creation oopses the kernel. The BUG_ON is: BUG_ON(len >= EXT4_BLOCKS_PER_GROUP(sb)); As the allocation of the bitmaps and the inode table can be done outside the block group with flex_bg, this allows to allocate up to EXT4_BLOCKS_PER_GROUP blocks in a group. This patch fixes the oops. Signed-off-by: Valerie Clement Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/mballoc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index dd0fcfcb35c..2121184a3fa 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -906,7 +906,7 @@ static void ext4_mb_mark_free_simple(struct super_block *sb, unsigned short chunk; unsigned short border; - BUG_ON(len >= EXT4_BLOCKS_PER_GROUP(sb)); + BUG_ON(len > EXT4_BLOCKS_PER_GROUP(sb)); border = 2 << sb->s_blocksize_bits; -- GitLab From 4cdeed861b5f797b3fa661eb331a6bd6ad669c6a Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Fri, 22 Feb 2008 06:17:31 -0500 Subject: [PATCH 049/923] ext4: Don't leave behind a half-created inode if ext4_mkdir() fails If ext4_mkdir() fails to allocate the initial block for the directory, don't leave behind a half-created directory inode with the link count left at one. This was caused by an inappropriate call to ext4_dec_count(). Signed-off-by: Aneesh Kumar K.V Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/namei.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index a9347fb43bc..fffd0807a01 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1804,12 +1804,8 @@ retry: inode->i_fop = &ext4_dir_operations; inode->i_size = EXT4_I(inode)->i_disksize = inode->i_sb->s_blocksize; dir_block = ext4_bread (handle, inode, 0, 1, &err); - if (!dir_block) { - ext4_dec_count(handle, inode); /* is this nlink == 0? */ - ext4_mark_inode_dirty(handle, inode); - iput (inode); - goto out_stop; - } + if (!dir_block) + goto out_clear_inode; BUFFER_TRACE(dir_block, "get_write_access"); ext4_journal_get_write_access(handle, dir_block); de = (struct ext4_dir_entry_2 *) dir_block->b_data; @@ -1832,7 +1828,8 @@ retry: ext4_mark_inode_dirty(handle, inode); err = ext4_add_entry (handle, dentry, inode); if (err) { - inode->i_nlink = 0; +out_clear_inode: + clear_nlink(inode); ext4_mark_inode_dirty(handle, inode); iput (inode); goto out_stop; -- GitLab From b35905c16ad6428551eb9e49525011bd2700cf56 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Mon, 25 Feb 2008 16:54:37 -0500 Subject: [PATCH 050/923] ext4: Fix memory and buffer head leak in callers to ext4_ext_find_extent() The path variable returned via ext4_ext_find_extent is a kmalloc variable and needs to be freeded. It also contains a reference to buffer_head which needs to be dropped. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 6 +++--- fs/ext4/migrate.c | 5 +++++ include/linux/ext4_fs_extents.h | 1 + 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index e856f660fc3..995ac16102a 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -349,7 +349,7 @@ static void ext4_ext_show_leaf(struct inode *inode, struct ext4_ext_path *path) #define ext4_ext_show_leaf(inode,path) #endif -static void ext4_ext_drop_refs(struct ext4_ext_path *path) +void ext4_ext_drop_refs(struct ext4_ext_path *path) { int depth = path->p_depth; int i; @@ -2200,10 +2200,10 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, newdepth = ext_depth(inode); if (newdepth != depth) { depth = newdepth; - path = ext4_ext_find_extent(inode, iblock, NULL); + ext4_ext_drop_refs(path); + path = ext4_ext_find_extent(inode, iblock, path); if (IS_ERR(path)) { err = PTR_ERR(path); - path = NULL; goto out; } eh = path[depth].p_hdr; diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c index 8c6c685b9d2..5c1e27de775 100644 --- a/fs/ext4/migrate.c +++ b/fs/ext4/migrate.c @@ -43,6 +43,7 @@ static int finish_range(handle_t *handle, struct inode *inode, if (IS_ERR(path)) { retval = PTR_ERR(path); + path = NULL; goto err_out; } @@ -74,6 +75,10 @@ static int finish_range(handle_t *handle, struct inode *inode, } retval = ext4_ext_insert_extent(handle, inode, path, &newext); err_out: + if (path) { + ext4_ext_drop_refs(path); + kfree(path); + } lb->first_pblock = 0; return retval; } diff --git a/include/linux/ext4_fs_extents.h b/include/linux/ext4_fs_extents.h index 697da4bce6c..1285c583b2d 100644 --- a/include/linux/ext4_fs_extents.h +++ b/include/linux/ext4_fs_extents.h @@ -227,5 +227,6 @@ extern int ext4_ext_search_left(struct inode *, struct ext4_ext_path *, ext4_lblk_t *, ext4_fsblk_t *); extern int ext4_ext_search_right(struct inode *, struct ext4_ext_path *, ext4_lblk_t *, ext4_fsblk_t *); +extern void ext4_ext_drop_refs(struct ext4_ext_path *); #endif /* _LINUX_EXT4_EXTENTS */ -- GitLab From 9df5643ad135c7f8c02d3b69020de4ec910f9fc0 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Fri, 22 Feb 2008 06:17:31 -0500 Subject: [PATCH 051/923] ext4: Get journal write access before modifying the extent tree When the user was writing into an unitialized extent, ext4_ext_convert_to_initialize() was not requesting journal write access before it started to modify the extent tree. Fix this oversight. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 995ac16102a..c4d6f19faf3 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2168,6 +2168,10 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, newblock = iblock - ee_block + ext_pblock(ex); ex2 = ex; + err = ext4_ext_get_access(handle, inode, path + depth); + if (err) + goto out; + /* ex1: ee_block to iblock - 1 : uninitialized */ if (iblock > ee_block) { ex1 = ex; @@ -2210,6 +2214,10 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, ex = path[depth].p_ext; if (ex2 != &newex) ex2 = ex; + + err = ext4_ext_get_access(handle, inode, path + depth); + if (err) + goto out; } allocated = max_blocks; } @@ -2230,9 +2238,6 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, ex2->ee_len = cpu_to_le16(allocated); if (ex2 != ex) goto insert; - err = ext4_ext_get_access(handle, inode, path + depth); - if (err) - goto out; /* * New (initialized) extent starts from the first block * in the current extent. i.e., ex2 == ex -- GitLab From e56eb6590693a5a340e8f596db2768a6e1b9e236 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Fri, 15 Feb 2008 13:48:21 -0500 Subject: [PATCH 052/923] ext4: Don't claim block from group which has corrupt bitmap In ext4_mb_complex_scan_group, if the extent length of the newly found extentet is greater than than the total free blocks counted in group info, break without claiming the block. Document different ext4_error usage, explaining the state with which we continue if we mount with errors=continue Signed-off-by: Aneesh Kumar K.V Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/mballoc.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 2121184a3fa..6968c53e62a 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -967,6 +967,10 @@ static void ext4_mb_generate_buddy(struct super_block *sb, ext4_error(sb, __FUNCTION__, "EXT4-fs: group %lu: %u blocks in bitmap, %u in gd\n", group, free, grp->bb_free); + /* + * If we intent to continue, we consider group descritor + * corrupt and update bb_free using bitmap value + */ grp->bb_free = free; } @@ -1822,7 +1826,7 @@ static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac, EXT4_BLOCKS_PER_GROUP(sb), i); if (i >= EXT4_BLOCKS_PER_GROUP(sb)) { /* - * IF we corrupt the bitmap we won't find any + * IF we have corrupt bitmap, we won't find any * free blocks even though group info says we * we have free blocks */ @@ -1838,6 +1842,12 @@ static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac, ext4_error(sb, __FUNCTION__, "%d free blocks as per " "group info. But got %d blocks\n", free, ex.fe_len); + /* + * The number of free blocks differs. This mostly + * indicate that the bitmap is corrupt. So exit + * without claiming the space. + */ + break; } ext4_mb_measure_extent(ac, &ex, e4b); @@ -3771,6 +3781,10 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b, (unsigned long) pa->pa_len); ext4_error(sb, __FUNCTION__, "free %u, pa_free %u\n", free, pa->pa_free); + /* + * pa is already deleted so we use the value obtained + * from the bitmap and continue. + */ } atomic_add(free, &sbi->s_mb_discarded); if (ac) -- GitLab From 74d3487fc8aa58cec16dff7239dea1ca59bdab0e Mon Sep 17 00:00:00 2001 From: Valerie Clement Date: Fri, 15 Feb 2008 13:43:07 -0500 Subject: [PATCH 053/923] ext4: modify block allocation algorithm for the last group When a directory inode is allocated in the last group and the last group contains less than s_blocks_per_group blocks, the initial block allocated for the directory is not always allocated in the same group as the directory inode, but in one of the first groups of the filesystem (group 1 for example). Depending on the current process's pid, ext4_find_near() and ext4_ext_find_goal() can return a block number greater than the maximum blocks count in the filesystem and in that case the block will be not allocated in the same group as the inode. The following patch fixes the problem. Should the modification also be done in ext2/3 code? Signed-off-by: Valerie Clement Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 8 +++++++- fs/ext4/inode.c | 8 +++++++- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index c4d6f19faf3..8a59f7ba30e 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -148,6 +148,7 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode, { struct ext4_inode_info *ei = EXT4_I(inode); ext4_fsblk_t bg_start; + ext4_fsblk_t last_block; ext4_grpblk_t colour; int depth; @@ -169,8 +170,13 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode, /* OK. use inode's group */ bg_start = (ei->i_block_group * EXT4_BLOCKS_PER_GROUP(inode->i_sb)) + le32_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_first_data_block); - colour = (current->pid % 16) * + last_block = ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es) - 1; + + if (bg_start + EXT4_BLOCKS_PER_GROUP(inode->i_sb) <= last_block) + colour = (current->pid % 16) * (EXT4_BLOCKS_PER_GROUP(inode->i_sb) / 16); + else + colour = (current->pid % 16) * ((last_block - bg_start) / 16); return bg_start + colour + block; } diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index d3c6f58a9de..34f3eb615fd 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -403,6 +403,7 @@ static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind) __le32 *start = ind->bh ? (__le32*) ind->bh->b_data : ei->i_data; __le32 *p; ext4_fsblk_t bg_start; + ext4_fsblk_t last_block; ext4_grpblk_t colour; /* Try to find previous block */ @@ -420,8 +421,13 @@ static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind) * into the same cylinder group then. */ bg_start = ext4_group_first_block_no(inode->i_sb, ei->i_block_group); - colour = (current->pid % 16) * + last_block = ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es) - 1; + + if (bg_start + EXT4_BLOCKS_PER_GROUP(inode->i_sb) <= last_block) + colour = (current->pid % 16) * (EXT4_BLOCKS_PER_GROUP(inode->i_sb) / 16); + else + colour = (current->pid % 16) * ((last_block - bg_start) / 16); return bg_start + colour; } -- GitLab From 11b6d6450c10066e83e19f6ff57d55678c3e9f13 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Fri, 15 Feb 2008 19:06:04 +0000 Subject: [PATCH 054/923] [CIFS] Only convert / when server does not support posix paths Also add warning if posix path setting changes on reconnect Signed-off-by: Steve French --- fs/cifs/connect.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index e111c69139b..77e6c4c3a88 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1722,8 +1722,15 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, originally at mount time */ if ((saved_cap & CIFS_UNIX_POSIX_ACL_CAP) == 0) cap &= ~CIFS_UNIX_POSIX_ACL_CAP; - if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) + if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) { + if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) + cERROR(1, ("POSIXPATH support change")); cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP; + } else if ((cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) { + cERROR(1, ("possible reconnect error")); + cERROR(1, + ("server disabled POSIX path support")); + } } cap &= CIFS_UNIX_CAP_MASK; @@ -2243,7 +2250,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, tcon->unix_ext = 0; /* server does not support them */ /* convert forward to back slashes in prepath here if needed */ - convert_delimiter(cifs_sb->prepath, CIFS_DIR_SEP(cifs_sb)); + if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) == 0) + convert_delimiter(cifs_sb->prepath, + CIFS_DIR_SEP(cifs_sb)); if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) { cifs_sb->rsize = 1024 * 127; -- GitLab From c2d68ea65b0f668783c88e1f4f22738b24f3edea Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 15 Feb 2008 19:20:18 +0000 Subject: [PATCH 055/923] [CIFS] fix prepath conversion when server supports posix paths Jeff Layton that we were converting \ to / in the posix path case which is not always right (depends on what the old delim was). CC: Jeff Layton Signed-off-by: Steve French --- fs/cifs/connect.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 77e6c4c3a88..8dbfa97cd18 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1802,12 +1802,18 @@ static void convert_delimiter(char *path, char delim) { int i; + char old_delim; if (path == NULL) return; + if (delim == '/') + old_delim = '\\'; + else + old_delim = '/'; + for (i = 0; path[i] != '\0'; i++) { - if ((path[i] == '/') || (path[i] == '\\')) + if (path[i] == old_delim) path[i] = delim; } } -- GitLab From 825f1481ead4ce40671089bae7412ac3519e8caa Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Fri, 15 Feb 2008 15:00:38 -0500 Subject: [PATCH 056/923] ext4: Don't use ext4_dec_count() if not needed The ext4_dec_count() function is only needed when dropping the i_nlink count on inodes which are (or which could be) directories. If we *know* that the inode in question can't possibly be a directory, use drop_nlink or clear_nlink() if we know i_nlink is 1. Signed-off-by: "Theodore Ts'o" --- fs/ext4/namei.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index fffd0807a01..5a79c6b6dc6 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2161,7 +2161,7 @@ static int ext4_unlink(struct inode * dir, struct dentry *dentry) dir->i_ctime = dir->i_mtime = ext4_current_time(dir); ext4_update_dx_flag(dir); ext4_mark_inode_dirty(handle, dir); - ext4_dec_count(handle, inode); + drop_nlink(inode); if (!inode->i_nlink) ext4_orphan_add(handle, inode); inode->i_ctime = ext4_current_time(inode); @@ -2211,7 +2211,7 @@ retry: err = __page_symlink(inode, symname, l, mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS); if (err) { - ext4_dec_count(handle, inode); + clear_nlink(inode); ext4_mark_inode_dirty(handle, inode); iput (inode); goto out_stop; @@ -2404,7 +2404,7 @@ static int ext4_rename (struct inode * old_dir, struct dentry *old_dentry, ext4_dec_count(handle, old_dir); if (new_inode) { /* checked empty_dir above, can't have another parent, - * ext3_dec_count() won't work for many-linked dirs */ + * ext4_dec_count() won't work for many-linked dirs */ new_inode->i_nlink = 0; } else { ext4_inc_count(handle, new_dir); -- GitLab From 70eff55d2d979cca700aa6906494f0c474f3f7ff Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 15 Feb 2008 20:55:05 +0000 Subject: [PATCH 057/923] [CIFS] factoring out common code in get_inode_info functions Signed-off-by: Christoph Hellwig Signed-off-by: Steve French --- fs/cifs/inode.c | 106 ++++++++++++++++++++---------------------------- 1 file changed, 43 insertions(+), 63 deletions(-) diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 6020add1515..e7cd392a796 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -29,6 +29,46 @@ #include "cifs_debug.h" #include "cifs_fs_sb.h" + +static void cifs_set_ops(struct inode *inode) +{ + struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); + + switch (inode->i_mode & S_IFMT) { + case S_IFREG: + inode->i_op = &cifs_file_inode_ops; + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) + inode->i_fop = &cifs_file_direct_nobrl_ops; + else + inode->i_fop = &cifs_file_direct_ops; + } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) + inode->i_fop = &cifs_file_nobrl_ops; + else { /* not direct, send byte range locks */ + inode->i_fop = &cifs_file_ops; + } + + + /* check if server can support readpages */ + if (cifs_sb->tcon->ses->server->maxBuf < + PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) + inode->i_data.a_ops = &cifs_addr_ops_smallbuf; + else + inode->i_data.a_ops = &cifs_addr_ops; + break; + case S_IFDIR: + inode->i_op = &cifs_dir_inode_ops; + inode->i_fop = &cifs_dir_ops; + break; + case S_IFLNK: + inode->i_op = &cifs_symlink_inode_ops; + break; + default: + init_special_inode(inode, inode->i_mode, inode->i_rdev); + break; + } +} + int cifs_get_inode_info_unix(struct inode **pinode, const unsigned char *search_path, struct super_block *sb, int xid) { @@ -178,39 +218,8 @@ int cifs_get_inode_info_unix(struct inode **pinode, cFYI(1, ("Size %ld and blocks %llu", (unsigned long) inode->i_size, (unsigned long long)inode->i_blocks)); - if (S_ISREG(inode->i_mode)) { - cFYI(1, ("File inode")); - inode->i_op = &cifs_file_inode_ops; - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = - &cifs_file_direct_nobrl_ops; - else - inode->i_fop = &cifs_file_direct_ops; - } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = &cifs_file_nobrl_ops; - else /* not direct, send byte range locks */ - inode->i_fop = &cifs_file_ops; - - /* check if server can support readpages */ - if (pTcon->ses->server->maxBuf < - PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) - inode->i_data.a_ops = &cifs_addr_ops_smallbuf; - else - inode->i_data.a_ops = &cifs_addr_ops; - } else if (S_ISDIR(inode->i_mode)) { - cFYI(1, ("Directory inode")); - inode->i_op = &cifs_dir_inode_ops; - inode->i_fop = &cifs_dir_ops; - } else if (S_ISLNK(inode->i_mode)) { - cFYI(1, ("Symbolic Link inode")); - inode->i_op = &cifs_symlink_inode_ops; - /* tmp_inode->i_fop = */ /* do not need to set to anything */ - } else { - cFYI(1, ("Init special inode")); - init_special_inode(inode, inode->i_mode, - inode->i_rdev); - } + + cifs_set_ops(inode); } return rc; } @@ -546,36 +555,7 @@ int cifs_get_inode_info(struct inode **pinode, atomic_set(&cifsInfo->inUse, 1); } - if (S_ISREG(inode->i_mode)) { - cFYI(1, ("File inode")); - inode->i_op = &cifs_file_inode_ops; - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = - &cifs_file_direct_nobrl_ops; - else - inode->i_fop = &cifs_file_direct_ops; - } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = &cifs_file_nobrl_ops; - else /* not direct, send byte range locks */ - inode->i_fop = &cifs_file_ops; - - if (pTcon->ses->server->maxBuf < - PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) - inode->i_data.a_ops = &cifs_addr_ops_smallbuf; - else - inode->i_data.a_ops = &cifs_addr_ops; - } else if (S_ISDIR(inode->i_mode)) { - cFYI(1, ("Directory inode")); - inode->i_op = &cifs_dir_inode_ops; - inode->i_fop = &cifs_dir_ops; - } else if (S_ISLNK(inode->i_mode)) { - cFYI(1, ("Symbolic Link inode")); - inode->i_op = &cifs_symlink_inode_ops; - } else { - init_special_inode(inode, inode->i_mode, - inode->i_rdev); - } + cifs_set_ops(inode); } kfree(buf); return rc; -- GitLab From 05cca7381429e12d66c5b5c8b5c5848055b88bf7 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 26 Jan 2008 17:42:45 +0100 Subject: [PATCH 058/923] firewire: fw-sbp2: unsigned int vs. unsigned Standardize on "unsigned int" style. Sort some struct members thematically. Signed-off-by: Stefan Richter --- drivers/firewire/fw-sbp2.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 19ece9b6d74..f2a9a33b47a 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -141,15 +141,13 @@ struct sbp2_logical_unit { struct sbp2_target { struct kref kref; struct fw_unit *unit; + struct list_head lu_list; u64 management_agent_address; int directory_id; int node_id; int address_high; - - unsigned workarounds; - struct list_head lu_list; - + unsigned int workarounds; unsigned int mgt_orb_timeout; }; @@ -160,7 +158,7 @@ struct sbp2_target { */ #define SBP2_MIN_LOGIN_ORB_TIMEOUT 5000U /* Timeout in ms */ #define SBP2_MAX_LOGIN_ORB_TIMEOUT 40000U /* Timeout in ms */ -#define SBP2_ORB_TIMEOUT 2000 /* Timeout in ms */ +#define SBP2_ORB_TIMEOUT 2000U /* Timeout in ms */ #define SBP2_ORB_NULL 0x80000000 #define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000 @@ -297,7 +295,7 @@ struct sbp2_command_orb { static const struct { u32 firmware_revision; u32 model; - unsigned workarounds; + unsigned int workarounds; } sbp2_workarounds_table[] = { /* DViCO Momobay CX-1 with TSB42AA9 bridge */ { .firmware_revision = 0x002800, @@ -836,7 +834,7 @@ static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model, u32 firmware_revision) { int i; - unsigned w = sbp2_param_workarounds; + unsigned int w = sbp2_param_workarounds; if (w) fw_notify("Please notify linux1394-devel@lists.sourceforge.net " @@ -1197,7 +1195,7 @@ static int sbp2_scsi_queuecommand(struct scsi_cmnd *cmd, scsi_done_fn_t done) struct sbp2_logical_unit *lu = cmd->device->hostdata; struct fw_device *device = fw_device(lu->tgt->unit->device.parent); struct sbp2_command_orb *orb; - unsigned max_payload; + unsigned int max_payload; int retval = SCSI_MLQUEUE_HOST_BUSY; /* -- GitLab From 1b9c12ba2fdf802a23630f70eddb0e821296634e Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 26 Jan 2008 17:43:23 +0100 Subject: [PATCH 059/923] firewire: fw-sbp2: fix logout before login retry This fixes a "can't recognize device" kind of bug. If the SCSI INQUIRY failed and hence __scsi_add_device failed due to a bus reset, we tried a logout and then waited for the already scheduled login work to happen. So far so good, but the generation used for the logout was outdated, hence the logout never reached the target. The target might therefore deny the subsequent relogin attempt, which would also leave the target inaccessible. Therefore fetch a fresh device->generation for the logout. Use memory barriers to prevent our plan being foiled by compiler or hardware optimizations. Signed-off-by: Stefan Richter --- drivers/firewire/fw-sbp2.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index f2a9a33b47a..a15e3c7d21d 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -716,7 +716,11 @@ static void sbp2_login(struct work_struct *work) sdev = __scsi_add_device(shost, 0, 0, scsilun_to_int(&eight_bytes_lun), lu); if (IS_ERR(sdev)) { - sbp2_send_management_orb(lu, node_id, generation, + smp_rmb(); /* generation may have changed */ + generation = device->generation; + smp_rmb(); /* node_id must not be older than generation */ + + sbp2_send_management_orb(lu, device->node_id, generation, SBP2_LOGOUT_REQUEST, lu->login_id, NULL); /* * Set this back to sbp2_login so we fall back and -- GitLab From 96b19062e741b715cf399312c30e0672d8889569 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 2 Feb 2008 15:01:09 +0100 Subject: [PATCH 060/923] firewire: fix "kobject_add failed for fw* with -EEXIST" There is a race between shutdown and creation of devices: fw-core may attempt to add a device with the same name of an already existing device. http://bugzilla.kernel.org/show_bug.cgi?id=9828 Impact of the bug: Happens rarely (when shutdown of a device coincides with creation of another), forces the user to unplug and replug the new device to get it working. The fix is obvious: Free the minor number *after* instead of *before* device_unregister(). This requires to take an additional reference of the fw_device as long as the IDR tree points to it. And while we are at it, we fix an additional race condition: fw_device_op_open() took its reference of the fw_device a little bit too late, hence was in danger to access an already invalid fw_device. Signed-off-by: Stefan Richter --- drivers/firewire/fw-cdev.c | 8 +++++--- drivers/firewire/fw-device.c | 20 ++++++++++++++------ drivers/firewire/fw-device.h | 2 +- 3 files changed, 20 insertions(+), 10 deletions(-) diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c index 7e73cbaa412..44ccee26c36 100644 --- a/drivers/firewire/fw-cdev.c +++ b/drivers/firewire/fw-cdev.c @@ -109,15 +109,17 @@ static int fw_device_op_open(struct inode *inode, struct file *file) struct client *client; unsigned long flags; - device = fw_device_from_devt(inode->i_rdev); + device = fw_device_get_by_devt(inode->i_rdev); if (device == NULL) return -ENODEV; client = kzalloc(sizeof(*client), GFP_KERNEL); - if (client == NULL) + if (client == NULL) { + fw_device_put(device); return -ENOMEM; + } - client->device = fw_device_get(device); + client->device = device; INIT_LIST_HEAD(&client->event_list); INIT_LIST_HEAD(&client->resource_list); spin_lock_init(&client->lock); diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c index de9066e69ad..c04c28800f1 100644 --- a/drivers/firewire/fw-device.c +++ b/drivers/firewire/fw-device.c @@ -610,12 +610,14 @@ static DECLARE_RWSEM(idr_rwsem); static DEFINE_IDR(fw_device_idr); int fw_cdev_major; -struct fw_device *fw_device_from_devt(dev_t devt) +struct fw_device *fw_device_get_by_devt(dev_t devt) { struct fw_device *device; down_read(&idr_rwsem); device = idr_find(&fw_device_idr, MINOR(devt)); + if (device) + fw_device_get(device); up_read(&idr_rwsem); return device; @@ -627,13 +629,14 @@ static void fw_device_shutdown(struct work_struct *work) container_of(work, struct fw_device, work.work); int minor = MINOR(device->device.devt); - down_write(&idr_rwsem); - idr_remove(&fw_device_idr, minor); - up_write(&idr_rwsem); - fw_device_cdev_remove(device); device_for_each_child(&device->device, NULL, shutdown_unit); device_unregister(&device->device); + + down_write(&idr_rwsem); + idr_remove(&fw_device_idr, minor); + up_write(&idr_rwsem); + fw_device_put(device); } static struct device_type fw_device_type = { @@ -682,10 +685,13 @@ static void fw_device_init(struct work_struct *work) } err = -ENOMEM; + + fw_device_get(device); down_write(&idr_rwsem); if (idr_pre_get(&fw_device_idr, GFP_KERNEL)) err = idr_get_new(&fw_device_idr, device, &minor); up_write(&idr_rwsem); + if (err < 0) goto error; @@ -741,7 +747,9 @@ static void fw_device_init(struct work_struct *work) idr_remove(&fw_device_idr, minor); up_write(&idr_rwsem); error: - put_device(&device->device); + fw_device_put(device); /* fw_device_idr's reference */ + + put_device(&device->device); /* our reference */ } static int update_unit(struct device *dev, void *data) diff --git a/drivers/firewire/fw-device.h b/drivers/firewire/fw-device.h index 0854fe2bc11..43808c02793 100644 --- a/drivers/firewire/fw-device.h +++ b/drivers/firewire/fw-device.h @@ -77,13 +77,13 @@ fw_device_is_shutdown(struct fw_device *device) } struct fw_device *fw_device_get(struct fw_device *device); +struct fw_device *fw_device_get_by_devt(dev_t devt); void fw_device_put(struct fw_device *device); int fw_device_enable_phys_dma(struct fw_device *device); void fw_device_cdev_update(struct fw_device *device); void fw_device_cdev_remove(struct fw_device *device); -struct fw_device *fw_device_from_devt(dev_t devt); extern int fw_cdev_major; struct fw_unit { -- GitLab From be6f48b0174584c9c415012ca14803c7e941e27e Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 27 Jan 2008 19:14:44 +0100 Subject: [PATCH 061/923] firewire: fw-sbp2: don't retry login or reconnect after unplug If a device is being unplugged while fw-sbp2 had a login or reconnect on schedule, it would take about half a minute to shut the fw_unit down: Jan 27 18:34:54 stein firewire_sbp2: logged in to fw2.0 LUN 0000 (0 retries) Jan 27 18:34:59 stein firewire_sbp2: sbp2_scsi_abort Jan 27 18:34:59 stein scsi 25:0:0:0: Device offlined - not ready after error recovery Jan 27 18:35:01 stein firewire_sbp2: orb reply timed out, rcode=0x11 Jan 27 18:35:06 stein firewire_sbp2: orb reply timed out, rcode=0x11 Jan 27 18:35:12 stein firewire_sbp2: orb reply timed out, rcode=0x11 Jan 27 18:35:17 stein firewire_sbp2: orb reply timed out, rcode=0x11 Jan 27 18:35:22 stein firewire_sbp2: orb reply timed out, rcode=0x11 Jan 27 18:35:27 stein firewire_sbp2: orb reply timed out, rcode=0x11 Jan 27 18:35:32 stein firewire_sbp2: orb reply timed out, rcode=0x11 Jan 27 18:35:32 stein firewire_sbp2: failed to login to fw2.0 LUN 0000 Jan 27 18:35:32 stein firewire_sbp2: released fw2.0 After this patch, typically only a few seconds spent in __scsi_add_device remain: Jan 27 19:05:50 stein firewire_sbp2: logged in to fw2.0 LUN 0000 (0 retries) Jan 27 19:05:56 stein firewire_sbp2: sbp2_scsi_abort Jan 27 19:05:56 stein scsi 33:0:0:0: Device offlined - not ready after error recovery Jan 27 19:05:56 stein firewire_sbp2: released fw2.0 The benefit of this is less noise in the syslog. It furthermore avoids a few wasted CPU cycles and needlessly prolonged lifetime of a few driver objects. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-sbp2.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index a15e3c7d21d..72fddf5a12a 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -499,6 +499,9 @@ sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id, unsigned int timeout; int retval = -ENOMEM; + if (function == SBP2_LOGOUT_REQUEST && fw_device_is_shutdown(device)) + return 0; + orb = kzalloc(sizeof(*orb), GFP_ATOMIC); if (orb == NULL) return -ENOMEM; @@ -619,16 +622,13 @@ static void sbp2_release_target(struct kref *kref) struct sbp2_logical_unit *lu, *next; struct Scsi_Host *shost = container_of((void *)tgt, struct Scsi_Host, hostdata[0]); - struct fw_device *device = fw_device(tgt->unit->device.parent); list_for_each_entry_safe(lu, next, &tgt->lu_list, link) { if (lu->sdev) scsi_remove_device(lu->sdev); - if (!fw_device_is_shutdown(device)) - sbp2_send_management_orb(lu, tgt->node_id, - lu->generation, SBP2_LOGOUT_REQUEST, - lu->login_id, NULL); + sbp2_send_management_orb(lu, tgt->node_id, lu->generation, + SBP2_LOGOUT_REQUEST, lu->login_id, NULL); fw_core_remove_address_handler(&lu->address_handler); list_del(&lu->link); @@ -673,6 +673,9 @@ static void sbp2_login(struct work_struct *work) struct sbp2_login_response response; int generation, node_id, local_node_id; + if (fw_device_is_shutdown(device)) + goto out; + generation = device->generation; smp_rmb(); /* node_id must not be older than generation */ node_id = device->node_id; @@ -944,6 +947,9 @@ static void sbp2_reconnect(struct work_struct *work) struct fw_device *device = fw_device(unit->device.parent); int generation, node_id, local_node_id; + if (fw_device_is_shutdown(device)) + goto out; + generation = device->generation; smp_rmb(); /* node_id must not be older than generation */ node_id = device->node_id; -- GitLab From fa6e697b85d705d37b3b03829095c22bcbe95ab6 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 3 Feb 2008 23:03:00 +0100 Subject: [PATCH 062/923] firewire: log GUID of new devices This should help to interpret user reports. E.g. one can look up the vendor OUI (first three bytes of the GUID) and thus tell what is what. Also simplifies the math in the GUID sysfs attribute. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-device.c | 28 +++++++++++++++++----------- 1 file changed, 17 insertions(+), 11 deletions(-) diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c index c04c28800f1..2ab13e0f346 100644 --- a/drivers/firewire/fw-device.c +++ b/drivers/firewire/fw-device.c @@ -358,12 +358,9 @@ static ssize_t guid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct fw_device *device = fw_device(dev); - u64 guid; - guid = ((u64)device->config_rom[3] << 32) | device->config_rom[4]; - - return snprintf(buf, PAGE_SIZE, "0x%016llx\n", - (unsigned long long)guid); + return snprintf(buf, PAGE_SIZE, "0x%08x%08x\n", + device->config_rom[3], device->config_rom[4]); } static struct device_attribute fw_device_attributes[] = { @@ -723,13 +720,22 @@ static void fw_device_init(struct work_struct *work) */ if (atomic_cmpxchg(&device->state, FW_DEVICE_INITIALIZING, - FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN) + FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN) { fw_device_shutdown(&device->work.work); - else - fw_notify("created new fw device %s " - "(%d config rom retries, S%d00)\n", - device->device.bus_id, device->config_rom_retries, - 1 << device->max_speed); + } else { + if (device->config_rom_retries) + fw_notify("created device %s: GUID %08x%08x, S%d00, " + "%d config ROM retries\n", + device->device.bus_id, + device->config_rom[3], device->config_rom[4], + 1 << device->max_speed, + device->config_rom_retries); + else + fw_notify("created device %s: GUID %08x%08x, S%d00\n", + device->device.bus_id, + device->config_rom[3], device->config_rom[4], + 1 << device->max_speed); + } /* * Reschedule the IRM work if we just finished reading the -- GitLab From 9220f1946209a5b3335ea2d28f8462695885791b Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 3 Feb 2008 23:04:38 +0100 Subject: [PATCH 063/923] firewire: fw-sbp2: add INQUIRY delay workaround Several different SBP-2 bridges accept a login early while the IDE device is still powering up. They are therefore unable to respond to SCSI INQUIRY immediately, and the SCSI core has to retry the INQUIRY. One of these retries is typically successful, and all is well. But in case of Momobay FX-3A, the INQUIRY retries tend to fail entirely. This can usually be avoided by waiting a little while after login before letting the SCSI core send the INQUIRY. The old sbp2 driver handles this more gracefully for as yet unknown reasons (perhaps because it waits for fetch agent resets to complete, unlike fw-sbp2 which quickly proceeds after requesting the agent reset). Therefore the workaround is not as much necessary for sbp2. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-sbp2.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 72fddf5a12a..4a118fbc7b2 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include #include @@ -82,6 +83,9 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device " * Avoids access beyond actual disk limits on devices with an off-by-one bug. * Don't use this with devices which don't have this bug. * + * - delay inquiry + * Wait extra SBP2_INQUIRY_DELAY seconds after login before SCSI inquiry. + * * - override internal blacklist * Instead of adding to the built-in blacklist, use only the workarounds * specified in the module load parameter. @@ -91,6 +95,8 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device " #define SBP2_WORKAROUND_INQUIRY_36 0x2 #define SBP2_WORKAROUND_MODE_SENSE_8 0x4 #define SBP2_WORKAROUND_FIX_CAPACITY 0x8 +#define SBP2_WORKAROUND_DELAY_INQUIRY 0x10 +#define SBP2_INQUIRY_DELAY 12 #define SBP2_WORKAROUND_OVERRIDE 0x100 static int sbp2_param_workarounds; @@ -100,6 +106,7 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0" ", 36 byte inquiry = " __stringify(SBP2_WORKAROUND_INQUIRY_36) ", skip mode page 8 = " __stringify(SBP2_WORKAROUND_MODE_SENSE_8) ", fix capacity = " __stringify(SBP2_WORKAROUND_FIX_CAPACITY) + ", delay inquiry = " __stringify(SBP2_WORKAROUND_DELAY_INQUIRY) ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE) ", or a combination)"); @@ -303,6 +310,11 @@ static const struct { .workarounds = SBP2_WORKAROUND_INQUIRY_36 | SBP2_WORKAROUND_MODE_SENSE_8, }, + /* DViCO Momobay FX-3A with TSB42AA9A bridge */ { + .firmware_revision = 0x002800, + .model = 0x000000, + .workarounds = SBP2_WORKAROUND_DELAY_INQUIRY, + }, /* Initio bridges, actually only needed for some older ones */ { .firmware_revision = 0x000200, .model = ~0, @@ -712,6 +724,9 @@ static void sbp2_login(struct work_struct *work) PREPARE_DELAYED_WORK(&lu->work, sbp2_reconnect); sbp2_agent_reset(lu); + if (lu->tgt->workarounds & SBP2_WORKAROUND_DELAY_INQUIRY) + ssleep(SBP2_INQUIRY_DELAY); + memset(&eight_bytes_lun, 0, sizeof(eight_bytes_lun)); eight_bytes_lun.scsi_lun[0] = (lu->lun >> 8) & 0xff; eight_bytes_lun.scsi_lun[1] = lu->lun & 0xff; -- GitLab From d94a983526cb868658c958ab689410dc1c6a31f3 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 3 Feb 2008 23:07:44 +0100 Subject: [PATCH 064/923] ieee1394: sbp2: add INQUIRY delay workaround Add the same workaround as found in fw-sbp2 for feature parity and compatibility of the workarounds module parameter. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/ieee1394/sbp2.c | 12 ++++++++++++ drivers/ieee1394/sbp2.h | 2 ++ 2 files changed, 14 insertions(+) diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index 28e155a9e2a..accb2ad8b56 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -183,6 +183,9 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device " * Avoids access beyond actual disk limits on devices with an off-by-one bug. * Don't use this with devices which don't have this bug. * + * - delay inquiry + * Wait extra SBP2_INQUIRY_DELAY seconds after login before SCSI inquiry. + * * - override internal blacklist * Instead of adding to the built-in blacklist, use only the workarounds * specified in the module load parameter. @@ -195,6 +198,7 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0" ", 36 byte inquiry = " __stringify(SBP2_WORKAROUND_INQUIRY_36) ", skip mode page 8 = " __stringify(SBP2_WORKAROUND_MODE_SENSE_8) ", fix capacity = " __stringify(SBP2_WORKAROUND_FIX_CAPACITY) + ", delay inquiry = " __stringify(SBP2_WORKAROUND_DELAY_INQUIRY) ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE) ", or a combination)"); @@ -357,6 +361,11 @@ static const struct { .workarounds = SBP2_WORKAROUND_INQUIRY_36 | SBP2_WORKAROUND_MODE_SENSE_8, }, + /* DViCO Momobay FX-3A with TSB42AA9A bridge */ { + .firmware_revision = 0x002800, + .model_id = 0x000000, + .workarounds = SBP2_WORKAROUND_DELAY_INQUIRY, + }, /* Initio bridges, actually only needed for some older ones */ { .firmware_revision = 0x000200, .model_id = SBP2_ROM_VALUE_WILDCARD, @@ -914,6 +923,9 @@ static int sbp2_start_device(struct sbp2_lu *lu) sbp2_agent_reset(lu, 1); sbp2_max_speed_and_size(lu); + if (lu->workarounds & SBP2_WORKAROUND_DELAY_INQUIRY) + ssleep(SBP2_INQUIRY_DELAY); + error = scsi_add_device(lu->shost, 0, lu->ud->id, 0); if (error) { SBP2_ERR("scsi_add_device failed"); diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h index d2ecb0d8a1b..80d8e097b06 100644 --- a/drivers/ieee1394/sbp2.h +++ b/drivers/ieee1394/sbp2.h @@ -343,6 +343,8 @@ enum sbp2lu_state_types { #define SBP2_WORKAROUND_INQUIRY_36 0x2 #define SBP2_WORKAROUND_MODE_SENSE_8 0x4 #define SBP2_WORKAROUND_FIX_CAPACITY 0x8 +#define SBP2_WORKAROUND_DELAY_INQUIRY 0x10 +#define SBP2_INQUIRY_DELAY 12 #define SBP2_WORKAROUND_OVERRIDE 0x100 #endif /* SBP2_H */ -- GitLab From e0e60215552d4d40caf581a8d3247203fe948fe7 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 3 Feb 2008 23:08:58 +0100 Subject: [PATCH 065/923] firewire: fw-sbp2: wait for completion of fetch agent reset Like the old sbp2 driver, wait for the write transaction to the AGENT_RESET to complete before proceeding (after login, after reconnect, or in SCSI error handling). There is one occasion where AGENT_RESET is written to from atomic context when getting DEAD status for a command ORB. There we still continue without waiting for the transaction to complete because this is more difficult to fix... Signed-off-by: Stefan Richter --- drivers/firewire/fw-sbp2.c | 39 +++++++++++++++++++++++++++----------- 1 file changed, 28 insertions(+), 11 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 4a118fbc7b2..32b50f13e7a 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -603,29 +603,46 @@ sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id, static void complete_agent_reset_write(struct fw_card *card, int rcode, - void *payload, size_t length, void *data) + void *payload, size_t length, void *done) { - struct fw_transaction *t = data; + complete(done); +} + +static void sbp2_agent_reset(struct sbp2_logical_unit *lu) +{ + struct fw_device *device = fw_device(lu->tgt->unit->device.parent); + DECLARE_COMPLETION_ONSTACK(done); + struct fw_transaction t; + static u32 z; - kfree(t); + fw_send_request(device->card, &t, TCODE_WRITE_QUADLET_REQUEST, + lu->tgt->node_id, lu->generation, device->max_speed, + lu->command_block_agent_address + SBP2_AGENT_RESET, + &z, sizeof(z), complete_agent_reset_write, &done); + wait_for_completion(&done); } -static int sbp2_agent_reset(struct sbp2_logical_unit *lu) +static void +complete_agent_reset_write_no_wait(struct fw_card *card, int rcode, + void *payload, size_t length, void *data) +{ + kfree(data); +} + +static void sbp2_agent_reset_no_wait(struct sbp2_logical_unit *lu) { struct fw_device *device = fw_device(lu->tgt->unit->device.parent); struct fw_transaction *t; - static u32 zero; + static u32 z; - t = kzalloc(sizeof(*t), GFP_ATOMIC); + t = kmalloc(sizeof(*t), GFP_ATOMIC); if (t == NULL) - return -ENOMEM; + return; fw_send_request(device->card, t, TCODE_WRITE_QUADLET_REQUEST, lu->tgt->node_id, lu->generation, device->max_speed, lu->command_block_agent_address + SBP2_AGENT_RESET, - &zero, sizeof(zero), complete_agent_reset_write, t); - - return 0; + &z, sizeof(z), complete_agent_reset_write_no_wait, t); } static void sbp2_release_target(struct kref *kref) @@ -1086,7 +1103,7 @@ complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status) if (status != NULL) { if (STATUS_GET_DEAD(*status)) - sbp2_agent_reset(orb->lu); + sbp2_agent_reset_no_wait(orb->lu); switch (STATUS_GET_RESPONSE(*status)) { case SBP2_STATUS_REQUEST_COMPLETE: -- GitLab From 48f18c761c001a66ef1928b42799c717368b1d64 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 3 Feb 2008 23:09:50 +0100 Subject: [PATCH 066/923] firewire: fw-sbp2: log bus_id at management request failures for easier readable logs if more than one SBP-2 device is present. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-sbp2.c | 66 +++++++++++++++++++------------------- 1 file changed, 33 insertions(+), 33 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 32b50f13e7a..077f1c09dad 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -148,6 +148,7 @@ struct sbp2_logical_unit { struct sbp2_target { struct kref kref; struct fw_unit *unit; + const char *bus_id; struct list_head lu_list; u64 management_agent_address; @@ -566,20 +567,20 @@ sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id, retval = -EIO; if (sbp2_cancel_orbs(lu) == 0) { - fw_error("orb reply timed out, rcode=0x%02x\n", - orb->base.rcode); + fw_error("%s: orb reply timed out, rcode=0x%02x\n", + lu->tgt->bus_id, orb->base.rcode); goto out; } if (orb->base.rcode != RCODE_COMPLETE) { - fw_error("management write failed, rcode 0x%02x\n", - orb->base.rcode); + fw_error("%s: management write failed, rcode 0x%02x\n", + lu->tgt->bus_id, orb->base.rcode); goto out; } if (STATUS_GET_RESPONSE(orb->status) != 0 || STATUS_GET_SBP_STATUS(orb->status) != 0) { - fw_error("error status: %d:%d\n", + fw_error("%s: error status: %d:%d\n", lu->tgt->bus_id, STATUS_GET_RESPONSE(orb->status), STATUS_GET_SBP_STATUS(orb->status)); goto out; @@ -664,7 +665,7 @@ static void sbp2_release_target(struct kref *kref) kfree(lu); } scsi_remove_host(shost); - fw_notify("released %s\n", tgt->unit->device.bus_id); + fw_notify("released %s\n", tgt->bus_id); put_device(&tgt->unit->device); scsi_host_put(shost); @@ -693,12 +694,11 @@ static void sbp2_login(struct work_struct *work) { struct sbp2_logical_unit *lu = container_of(work, struct sbp2_logical_unit, work.work); - struct Scsi_Host *shost = - container_of((void *)lu->tgt, struct Scsi_Host, hostdata[0]); + struct sbp2_target *tgt = lu->tgt; + struct fw_device *device = fw_device(tgt->unit->device.parent); + struct Scsi_Host *shost; struct scsi_device *sdev; struct scsi_lun eight_bytes_lun; - struct fw_unit *unit = lu->tgt->unit; - struct fw_device *device = fw_device(unit->device.parent); struct sbp2_login_response response; int generation, node_id, local_node_id; @@ -715,14 +715,14 @@ static void sbp2_login(struct work_struct *work) if (lu->retries++ < 5) sbp2_queue_work(lu, DIV_ROUND_UP(HZ, 5)); else - fw_error("failed to login to %s LUN %04x\n", - unit->device.bus_id, lu->lun); + fw_error("%s: failed to login to LUN %04x\n", + tgt->bus_id, lu->lun); goto out; } - lu->generation = generation; - lu->tgt->node_id = node_id; - lu->tgt->address_high = local_node_id << 16; + lu->generation = generation; + tgt->node_id = node_id; + tgt->address_high = local_node_id << 16; /* Get command block agent offset and login id. */ lu->command_block_agent_address = @@ -730,8 +730,8 @@ static void sbp2_login(struct work_struct *work) response.command_block_agent.low; lu->login_id = LOGIN_RESPONSE_GET_LOGIN_ID(response); - fw_notify("logged in to %s LUN %04x (%d retries)\n", - unit->device.bus_id, lu->lun, lu->retries); + fw_notify("%s: logged in to LUN %04x (%d retries)\n", + tgt->bus_id, lu->lun, lu->retries); #if 0 /* FIXME: The linux1394 sbp2 does this last step. */ @@ -747,6 +747,7 @@ static void sbp2_login(struct work_struct *work) memset(&eight_bytes_lun, 0, sizeof(eight_bytes_lun)); eight_bytes_lun.scsi_lun[0] = (lu->lun >> 8) & 0xff; eight_bytes_lun.scsi_lun[1] = lu->lun & 0xff; + shost = container_of((void *)tgt, struct Scsi_Host, hostdata[0]); sdev = __scsi_add_device(shost, 0, 0, scsilun_to_int(&eight_bytes_lun), lu); @@ -767,7 +768,7 @@ static void sbp2_login(struct work_struct *work) scsi_device_put(sdev); } out: - sbp2_target_put(lu->tgt); + sbp2_target_put(tgt); } static int sbp2_add_logical_unit(struct sbp2_target *tgt, int lun_entry) @@ -850,7 +851,7 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory, if (timeout > tgt->mgt_orb_timeout) fw_notify("%s: config rom contains %ds " "management ORB timeout, limiting " - "to %ds\n", tgt->unit->device.bus_id, + "to %ds\n", tgt->bus_id, timeout / 1000, tgt->mgt_orb_timeout / 1000); break; @@ -878,7 +879,7 @@ static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model, if (w) fw_notify("Please notify linux1394-devel@lists.sourceforge.net " "if you need the workarounds parameter for %s\n", - tgt->unit->device.bus_id); + tgt->bus_id); if (w & SBP2_WORKAROUND_OVERRIDE) goto out; @@ -900,8 +901,7 @@ static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model, if (w) fw_notify("Workarounds for %s: 0x%x " "(firmware_revision 0x%06x, model_id 0x%06x)\n", - tgt->unit->device.bus_id, - w, firmware_revision, model); + tgt->bus_id, w, firmware_revision, model); tgt->workarounds = w; } @@ -925,6 +925,7 @@ static int sbp2_probe(struct device *dev) tgt->unit = unit; kref_init(&tgt->kref); INIT_LIST_HEAD(&tgt->lu_list); + tgt->bus_id = unit->device.bus_id; if (fw_device_enable_phys_dma(device) < 0) goto fail_shost_put; @@ -975,8 +976,8 @@ static void sbp2_reconnect(struct work_struct *work) { struct sbp2_logical_unit *lu = container_of(work, struct sbp2_logical_unit, work.work); - struct fw_unit *unit = lu->tgt->unit; - struct fw_device *device = fw_device(unit->device.parent); + struct sbp2_target *tgt = lu->tgt; + struct fw_device *device = fw_device(tgt->unit->device.parent); int generation, node_id, local_node_id; if (fw_device_is_shutdown(device)) @@ -991,8 +992,7 @@ static void sbp2_reconnect(struct work_struct *work) SBP2_RECONNECT_REQUEST, lu->login_id, NULL) < 0) { if (lu->retries++ >= 5) { - fw_error("failed to reconnect to %s\n", - unit->device.bus_id); + fw_error("%s: failed to reconnect\n", tgt->bus_id); /* Fall back and try to log in again. */ lu->retries = 0; PREPARE_DELAYED_WORK(&lu->work, sbp2_login); @@ -1001,17 +1001,17 @@ static void sbp2_reconnect(struct work_struct *work) goto out; } - lu->generation = generation; - lu->tgt->node_id = node_id; - lu->tgt->address_high = local_node_id << 16; + lu->generation = generation; + tgt->node_id = node_id; + tgt->address_high = local_node_id << 16; - fw_notify("reconnected to %s LUN %04x (%d retries)\n", - unit->device.bus_id, lu->lun, lu->retries); + fw_notify("%s: reconnected to LUN %04x (%d retries)\n", + tgt->bus_id, lu->lun, lu->retries); sbp2_agent_reset(lu); sbp2_cancel_orbs(lu); out: - sbp2_target_put(lu->tgt); + sbp2_target_put(tgt); } static void sbp2_update(struct fw_unit *unit) @@ -1359,7 +1359,7 @@ static int sbp2_scsi_abort(struct scsi_cmnd *cmd) { struct sbp2_logical_unit *lu = cmd->device->hostdata; - fw_notify("sbp2_scsi_abort\n"); + fw_notify("%s: sbp2_scsi_abort\n", lu->tgt->bus_id); sbp2_agent_reset(lu); sbp2_cancel_orbs(lu); -- GitLab From 0fa6dfdb0a2768541e998a5dab10b368de56c60a Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 3 Feb 2008 23:10:47 +0100 Subject: [PATCH 067/923] firewire: fw-sbp2: don't add scsi_device twice When a reconnect failed but re-login succeeded, __scsi_add_device was called again. In those cases, __scsi_add_device succeeded and returned the pointer to the existing scsi_device. fw-sbp2 then continued orderly, except that it missed to call sbp2_cancel_orbs. SCSI core would call fw-sbp2's eh_abort_handler eventually if there had been an outstanding command. This patch avoids the needless lookups and temporary allocations in SCSI core and I/O stall and timeout until eh_abort_handler hits. Also, __scsi_add_device tolerating calls for devices which already exist is undocumented behavior on which we shouldn't rely. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-sbp2.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 077f1c09dad..914170bb50a 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -741,6 +741,12 @@ static void sbp2_login(struct work_struct *work) PREPARE_DELAYED_WORK(&lu->work, sbp2_reconnect); sbp2_agent_reset(lu); + /* This was a re-login. */ + if (lu->sdev) { + sbp2_cancel_orbs(lu); + goto out; + } + if (lu->tgt->workarounds & SBP2_WORKAROUND_DELAY_INQUIRY) ssleep(SBP2_INQUIRY_DELAY); -- GitLab From ce896d95cc7886ae05859c5b409a7b2f3b606ec1 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 3 Feb 2008 23:11:39 +0100 Subject: [PATCH 068/923] firewire: fw-sbp2: logout and login after failed reconnect If fw-sbp2 was too late with requesting the reconnect, the target would reject this. In this case, log out before attempting the reconnect. Else several firmwares will deny the re-login because they somehow didn't invalidate the old login. Also, don't retry reconnects in this situation. The retries won't succeed either. These changes improve chances for successful re-login and shorten the period during which the logical unit is inaccessible. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-sbp2.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 914170bb50a..80ab6516175 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -710,6 +710,11 @@ static void sbp2_login(struct work_struct *work) node_id = device->node_id; local_node_id = device->card->node_id; + /* If this is a re-login attempt, log out, or we might be rejected. */ + if (lu->sdev) + sbp2_send_management_orb(lu, device->node_id, generation, + SBP2_LOGOUT_REQUEST, lu->login_id, NULL); + if (sbp2_send_management_orb(lu, node_id, generation, SBP2_LOGIN_REQUEST, lu->lun, &response) < 0) { if (lu->retries++ < 5) @@ -997,9 +1002,17 @@ static void sbp2_reconnect(struct work_struct *work) if (sbp2_send_management_orb(lu, node_id, generation, SBP2_RECONNECT_REQUEST, lu->login_id, NULL) < 0) { - if (lu->retries++ >= 5) { + /* + * If reconnect was impossible even though we are in the + * current generation, fall back and try to log in again. + * + * We could check for "Function rejected" status, but + * looking at the bus generation as simpler and more general. + */ + smp_rmb(); /* get current card generation */ + if (generation == device->card->generation || + lu->retries++ >= 5) { fw_error("%s: failed to reconnect\n", tgt->bus_id); - /* Fall back and try to log in again. */ lu->retries = 0; PREPARE_DELAYED_WORK(&lu->work, sbp2_login); } -- GitLab From 7bb6bf7c8ba0b4ccfecaa00d6faea51b0bd42c8c Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 3 Feb 2008 23:12:17 +0100 Subject: [PATCH 069/923] firewire: fw-sbp2: sort includes Signed-off-by: Stefan Richter --- drivers/firewire/fw-sbp2.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 80ab6516175..323b03bacd2 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -28,15 +28,15 @@ * and many others. */ +#include +#include +#include +#include #include +#include #include #include -#include -#include -#include #include -#include -#include #include #include #include @@ -48,9 +48,9 @@ #include #include -#include "fw-transaction.h" -#include "fw-topology.h" #include "fw-device.h" +#include "fw-topology.h" +#include "fw-transaction.h" /* * So far only bridges from Oxford Semiconductor are known to support -- GitLab From e80de3704ac30ddb7f9a12447a2ecee32ccd7880 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Fri, 15 Feb 2008 21:29:02 +0100 Subject: [PATCH 070/923] firewire: fw-sbp2: enforce a retry of __scsi_add_device if bus generation changed fw-sbp2 is unable to reconnect while performing __scsi_add_device because there is only a single workqueue thread context available for both at the moment. This should be fixed eventually. An actual failure of __scsi_add_device is easy to handle, but an incomplete execution of __scsi_add_device with an sdev returned would remain undetected and leave the SBP-2 target unusable. Therefore we use a workaround: If there was a bus reset during __scsi_add_device (i.e. during the SCSI probe), we remove the new sdev immediately, log out, and attempt login and SCSI probe again. Tested-by: Jarod Wilson (earlier version) Signed-off-by: Stefan Richter --- drivers/firewire/fw-sbp2.c | 49 +++++++++++++++++++++++++++----------- 1 file changed, 35 insertions(+), 14 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 323b03bacd2..6d10934c58f 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -762,22 +762,43 @@ static void sbp2_login(struct work_struct *work) sdev = __scsi_add_device(shost, 0, 0, scsilun_to_int(&eight_bytes_lun), lu); - if (IS_ERR(sdev)) { - smp_rmb(); /* generation may have changed */ - generation = device->generation; - smp_rmb(); /* node_id must not be older than generation */ + /* + * FIXME: We are unable to perform reconnects while in sbp2_login(). + * Therefore __scsi_add_device() will get into trouble if a bus reset + * happens in parallel. It will either fail or leave us with an + * unusable sdev. As a workaround we check for this and retry the + * whole login and SCSI probing. + */ - sbp2_send_management_orb(lu, device->node_id, generation, - SBP2_LOGOUT_REQUEST, lu->login_id, NULL); - /* - * Set this back to sbp2_login so we fall back and - * retry login on bus reset. - */ - PREPARE_DELAYED_WORK(&lu->work, sbp2_login); - } else { - lu->sdev = sdev; - scsi_device_put(sdev); + /* Reported error during __scsi_add_device() */ + if (IS_ERR(sdev)) + goto out_logout_login; + + scsi_device_put(sdev); + + /* Unreported error during __scsi_add_device() */ + smp_rmb(); /* get current card generation */ + if (generation != device->card->generation) { + scsi_remove_device(sdev); + goto out_logout_login; } + + /* No error during __scsi_add_device() */ + lu->sdev = sdev; + goto out; + + out_logout_login: + smp_rmb(); /* generation may have changed */ + generation = device->generation; + smp_rmb(); /* node_id must not be older than generation */ + + sbp2_send_management_orb(lu, device->node_id, generation, + SBP2_LOGOUT_REQUEST, lu->login_id, NULL); + /* + * If a bus reset happened, sbp2_update will have requeued + * lu->work already. Reset the work from reconnect to login. + */ + PREPARE_DELAYED_WORK(&lu->work, sbp2_login); out: sbp2_target_put(tgt); } -- GitLab From e086fcea861f82f2086a97e401a15e1ba07e8566 Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 18 Feb 2008 04:03:58 +0000 Subject: [PATCH 071/923] [CIFS] fix build break when proc disabled Signed-off-by: Steve French --- fs/cifs/cifs_debug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 892fc70cc95..0228ed06069 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -918,11 +918,11 @@ security_flags_write(struct file *file, const char __user *buffer, return count; } #else -static inline void cifs_proc_init(void) +inline void cifs_proc_init(void) { } -static inline void cifs_proc_clean(void) +inline void cifs_proc_clean(void) { } #endif /* PROC_FS */ -- GitLab From 2e2705bdcb959372d54bf7f79dd9a555ec2adfb4 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 16 Feb 2008 16:37:28 +0100 Subject: [PATCH 072/923] firewire: fw-sbp2: (try to) avoid I/O errors during reconnect While fw-sbp2 takes the necessary time to reconnect to a logical unit after bus reset, the SCSI core keeps sending new commands. They are all immediately completed with host busy status, and application clients or filesystems will break quickly. The SCSI device might even be taken offline: http://bugzilla.kernel.org/show_bug.cgi?id=9734 The only remedy seems to be to block the SCSI device until reconnect. Alas the SCSI core has no useful API to block only one logical unit i.e. the scsi_device, therefore we block the entire Scsi_Host. This currently corresponds to an SBP-2 target. In case of targets with multiple logical units, we need to satisfy the dependencies between logical units by carefully tracking the blocking state of the target and its units. We block all logical units of a target as soon as one of them needs to be blocked, and keep them blocked until all of them are ready to be unblocked. Furthermore, as the history of the old sbp2 driver has shown, the scsi_block_requests() API is a minefield with high potential of deadlocks. We therefore take extra measures to keep logical units unblocked during __scsi_add_device() and during shutdown. This avoids I/O errors during reconnect in many but alas not in all cases. There may still be errors after a re-login had to be performed. Also, some bridges have been seen to cease fetching management ORBs if I/O went on up until a bus reset. In these cases, all management ORBs time out after mgt_orb_timeout. The old sbp2 driver is less vulnerable or maybe not vulnerable to this, for as yet unknown reasons. Signed-off-by: Stefan Richter --- drivers/firewire/fw-sbp2.c | 126 +++++++++++++++++++++++++++++++++++-- 1 file changed, 122 insertions(+), 4 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 6d10934c58f..ea4811c4551 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -139,6 +139,7 @@ struct sbp2_logical_unit { int generation; int retries; struct delayed_work work; + bool blocked; }; /* @@ -157,6 +158,9 @@ struct sbp2_target { int address_high; unsigned int workarounds; unsigned int mgt_orb_timeout; + + int dont_block; /* counter for each logical unit */ + int blocked; /* ditto */ }; /* @@ -646,6 +650,107 @@ static void sbp2_agent_reset_no_wait(struct sbp2_logical_unit *lu) &z, sizeof(z), complete_agent_reset_write_no_wait, t); } +static void sbp2_set_generation(struct sbp2_logical_unit *lu, int generation) +{ + struct fw_card *card = fw_device(lu->tgt->unit->device.parent)->card; + unsigned long flags; + + /* serialize with comparisons of lu->generation and card->generation */ + spin_lock_irqsave(&card->lock, flags); + lu->generation = generation; + spin_unlock_irqrestore(&card->lock, flags); +} + +static inline void sbp2_allow_block(struct sbp2_logical_unit *lu) +{ + /* + * We may access dont_block without taking card->lock here: + * All callers of sbp2_allow_block() and all callers of sbp2_unblock() + * are currently serialized against each other. + * And a wrong result in sbp2_conditionally_block()'s access of + * dont_block is rather harmless, it simply misses its first chance. + */ + --lu->tgt->dont_block; +} + +/* + * Blocks lu->tgt if all of the following conditions are met: + * - Login, INQUIRY, and high-level SCSI setup of all of the target's + * logical units have been finished (indicated by dont_block == 0). + * - lu->generation is stale. + * + * Note, scsi_block_requests() must be called while holding card->lock, + * otherwise it might foil sbp2_[conditionally_]unblock()'s attempt to + * unblock the target. + */ +static void sbp2_conditionally_block(struct sbp2_logical_unit *lu) +{ + struct sbp2_target *tgt = lu->tgt; + struct fw_card *card = fw_device(tgt->unit->device.parent)->card; + struct Scsi_Host *shost = + container_of((void *)tgt, struct Scsi_Host, hostdata[0]); + unsigned long flags; + + spin_lock_irqsave(&card->lock, flags); + if (!tgt->dont_block && !lu->blocked && + lu->generation != card->generation) { + lu->blocked = true; + if (++tgt->blocked == 1) { + scsi_block_requests(shost); + fw_notify("blocked %s\n", lu->tgt->bus_id); + } + } + spin_unlock_irqrestore(&card->lock, flags); +} + +/* + * Unblocks lu->tgt as soon as all its logical units can be unblocked. + * Note, it is harmless to run scsi_unblock_requests() outside the + * card->lock protected section. On the other hand, running it inside + * the section might clash with shost->host_lock. + */ +static void sbp2_conditionally_unblock(struct sbp2_logical_unit *lu) +{ + struct sbp2_target *tgt = lu->tgt; + struct fw_card *card = fw_device(tgt->unit->device.parent)->card; + struct Scsi_Host *shost = + container_of((void *)tgt, struct Scsi_Host, hostdata[0]); + unsigned long flags; + bool unblock = false; + + spin_lock_irqsave(&card->lock, flags); + if (lu->blocked && lu->generation == card->generation) { + lu->blocked = false; + unblock = --tgt->blocked == 0; + } + spin_unlock_irqrestore(&card->lock, flags); + + if (unblock) { + scsi_unblock_requests(shost); + fw_notify("unblocked %s\n", lu->tgt->bus_id); + } +} + +/* + * Prevents future blocking of tgt and unblocks it. + * Note, it is harmless to run scsi_unblock_requests() outside the + * card->lock protected section. On the other hand, running it inside + * the section might clash with shost->host_lock. + */ +static void sbp2_unblock(struct sbp2_target *tgt) +{ + struct fw_card *card = fw_device(tgt->unit->device.parent)->card; + struct Scsi_Host *shost = + container_of((void *)tgt, struct Scsi_Host, hostdata[0]); + unsigned long flags; + + spin_lock_irqsave(&card->lock, flags); + ++tgt->dont_block; + spin_unlock_irqrestore(&card->lock, flags); + + scsi_unblock_requests(shost); +} + static void sbp2_release_target(struct kref *kref) { struct sbp2_target *tgt = container_of(kref, struct sbp2_target, kref); @@ -653,6 +758,9 @@ static void sbp2_release_target(struct kref *kref) struct Scsi_Host *shost = container_of((void *)tgt, struct Scsi_Host, hostdata[0]); + /* prevent deadlocks */ + sbp2_unblock(tgt); + list_for_each_entry_safe(lu, next, &tgt->lu_list, link) { if (lu->sdev) scsi_remove_device(lu->sdev); @@ -717,17 +825,20 @@ static void sbp2_login(struct work_struct *work) if (sbp2_send_management_orb(lu, node_id, generation, SBP2_LOGIN_REQUEST, lu->lun, &response) < 0) { - if (lu->retries++ < 5) + if (lu->retries++ < 5) { sbp2_queue_work(lu, DIV_ROUND_UP(HZ, 5)); - else + } else { fw_error("%s: failed to login to LUN %04x\n", tgt->bus_id, lu->lun); + /* Let any waiting I/O fail from now on. */ + sbp2_unblock(lu->tgt); + } goto out; } - lu->generation = generation; tgt->node_id = node_id; tgt->address_high = local_node_id << 16; + sbp2_set_generation(lu, generation); /* Get command block agent offset and login id. */ lu->command_block_agent_address = @@ -749,6 +860,7 @@ static void sbp2_login(struct work_struct *work) /* This was a re-login. */ if (lu->sdev) { sbp2_cancel_orbs(lu); + sbp2_conditionally_unblock(lu); goto out; } @@ -785,6 +897,7 @@ static void sbp2_login(struct work_struct *work) /* No error during __scsi_add_device() */ lu->sdev = sdev; + sbp2_allow_block(lu); goto out; out_logout_login: @@ -825,6 +938,8 @@ static int sbp2_add_logical_unit(struct sbp2_target *tgt, int lun_entry) lu->sdev = NULL; lu->lun = lun_entry & 0xffff; lu->retries = 0; + lu->blocked = false; + ++tgt->dont_block; INIT_LIST_HEAD(&lu->orb_list); INIT_DELAYED_WORK(&lu->work, sbp2_login); @@ -1041,15 +1156,16 @@ static void sbp2_reconnect(struct work_struct *work) goto out; } - lu->generation = generation; tgt->node_id = node_id; tgt->address_high = local_node_id << 16; + sbp2_set_generation(lu, generation); fw_notify("%s: reconnected to LUN %04x (%d retries)\n", tgt->bus_id, lu->lun, lu->retries); sbp2_agent_reset(lu); sbp2_cancel_orbs(lu); + sbp2_conditionally_unblock(lu); out: sbp2_target_put(tgt); } @@ -1066,6 +1182,7 @@ static void sbp2_update(struct fw_unit *unit) * Iteration over tgt->lu_list is therefore safe here. */ list_for_each_entry(lu, &tgt->lu_list, link) { + sbp2_conditionally_block(lu); lu->retries = 0; sbp2_queue_work(lu, 0); } @@ -1169,6 +1286,7 @@ complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status) * or when sending the write (less likely). */ result = DID_BUS_BUSY << 16; + sbp2_conditionally_block(orb->lu); } dma_unmap_single(device->card->device, orb->base.request_bus, -- GitLab From 5513c5f6f9bd8c8ad3727130910fa288c62526a7 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 17 Feb 2008 14:56:19 +0100 Subject: [PATCH 073/923] firewire: fw-sbp2: fix NULL pointer deref. in slave_alloc Fix a kernel bug when running rescan-scsi-bus while a FireWire disk is connected: http://bugzilla.kernel.org/show_bug.cgi?id=10008 Signed-off-by: Stefan Richter --- drivers/firewire/fw-sbp2.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index ea4811c4551..60ebcb5fe21 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -1473,6 +1473,10 @@ static int sbp2_scsi_slave_alloc(struct scsi_device *sdev) { struct sbp2_logical_unit *lu = sdev->hostdata; + /* (Re-)Adding logical units via the SCSI stack is not supported. */ + if (!lu) + return -ENOSYS; + sdev->allow_restart = 1; /* -- GitLab From 33f1c6c3529f5f279e2e98e5cca0c5bac152153b Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Tue, 19 Feb 2008 09:05:49 +0100 Subject: [PATCH 074/923] firewire: fw-sbp2: fix NULL pointer deref. in scsi_remove_device Fix a kernel bug when unplugging an SBP-2 device after having its scsi_device already removed via the "delete" sysfs attribute. Signed-off-by: Stefan Richter --- drivers/firewire/fw-sbp2.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 60ebcb5fe21..5259491580f 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -762,9 +762,10 @@ static void sbp2_release_target(struct kref *kref) sbp2_unblock(tgt); list_for_each_entry_safe(lu, next, &tgt->lu_list, link) { - if (lu->sdev) + if (lu->sdev) { scsi_remove_device(lu->sdev); - + scsi_device_put(lu->sdev); + } sbp2_send_management_orb(lu, tgt->node_id, lu->generation, SBP2_LOGOUT_REQUEST, lu->login_id, NULL); @@ -886,12 +887,11 @@ static void sbp2_login(struct work_struct *work) if (IS_ERR(sdev)) goto out_logout_login; - scsi_device_put(sdev); - /* Unreported error during __scsi_add_device() */ smp_rmb(); /* get current card generation */ if (generation != device->card->generation) { scsi_remove_device(sdev); + scsi_device_put(sdev); goto out_logout_login; } -- GitLab From ef774c16a744f130f27c654bf9c4806e767fc773 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 17 Feb 2008 14:57:10 +0100 Subject: [PATCH 075/923] ieee1394: sbp2: fix rescan-scsi-bus rescan-scsi-bus used to add SBP-2 targets which weren't there. Signed-off-by: Stefan Richter --- drivers/ieee1394/sbp2.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index accb2ad8b56..9e2b1964d71 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -1974,6 +1974,9 @@ static int sbp2scsi_slave_alloc(struct scsi_device *sdev) { struct sbp2_lu *lu = (struct sbp2_lu *)sdev->host->hostdata[0]; + if (sdev->lun != 0 || sdev->id != lu->ud->id || sdev->channel != 0) + return -ENODEV; + lu->sdev = sdev; sdev->allow_restart = 1; -- GitLab From 09d7328e62e3b4cefe4bf3eeeeacb54f62a7ae5c Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Mon, 18 Feb 2008 21:38:35 +0100 Subject: [PATCH 076/923] Documentation: correction to debugging-via-ohci1394 Rectify a factoid about firewire-ohci. Acked-by: Ingo Molnar Also fix a typo spotted by Bernhard Kaindl. Signed-off-by: Stefan Richter --- Documentation/debugging-via-ohci1394.txt | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/Documentation/debugging-via-ohci1394.txt b/Documentation/debugging-via-ohci1394.txt index de4804e8b39..c360d4e91b4 100644 --- a/Documentation/debugging-via-ohci1394.txt +++ b/Documentation/debugging-via-ohci1394.txt @@ -36,14 +36,15 @@ available (notebooks) or too slow for extensive debug information (like ACPI). Drivers ------- -The OHCI-1394 drivers in drivers/firewire and drivers/ieee1394 initialize -the OHCI-1394 controllers to a working state and can be used to enable -physical DMA. By default you only have to load the driver, and physical -DMA access will be granted to all remote nodes, but it can be turned off -when using the ohci1394 driver. - -Because these drivers depend on the PCI enumeration to be completed, an -initialization routine which can runs pretty early (long before console_init(), +The ohci1394 driver in drivers/ieee1394 initializes the OHCI-1394 controllers +to a working state and enables physical DMA by default for all remote nodes. +This can be turned off by ohci1394's module parameter phys_dma=0. + +The alternative firewire-ohci driver in drivers/firewire uses filtered physical +DMA, hence is not yet suitable for remote debugging. + +Because ohci1394 depends on the PCI enumeration to be completed, an +initialization routine which runs pretty early (long before console_init() which makes the printk buffer appear on the console can be called) was written. To activate it, enable CONFIG_PROVIDE_OHCI1394_DMA_INIT (Kernel hacking menu: -- GitLab From b95e9e8d94484c2823be67416f25e9756db149dc Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 17 Feb 2008 13:22:48 +0100 Subject: [PATCH 077/923] ACPI: fix section mismatch in processor_core.c:acpi_processor_hotplug_notify Fix following warning: WARNING: vmlinux.o(.text+0x55586c): Section mismatch in reference from the function acpi_processor_hotplug_notify() to the function .cpuinit.text:acpi_processor_start() acpi_processor_hotplug_notify() may safely reference __cpuinit stuff as it ids defined inside an ACPI_HOTPLUG_CPU block. So annotate it __ref to silence the warning. Signed-off-by: Sam Ravnborg Signed-off-by: Len Brown --- drivers/acpi/processor_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 75ccf5d18bf..d3cc07fa448 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -881,8 +881,8 @@ int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device) return 0; } -static void -acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data) +static void __ref acpi_processor_hotplug_notify(acpi_handle handle, + u32 event, void *data) { struct acpi_processor *pr; struct acpi_device *device = NULL; -- GitLab From 7560e385651c60e5ffdf07cb94fa7d1658ab0b7a Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 17 Feb 2008 13:22:54 +0100 Subject: [PATCH 078/923] acer-wmi: fix section mismatch warnings Fix following warnings: WARNING: vmlinux.o(.text+0x672615): Section mismatch in reference from the function acer_platform_remove() to the function .exit.text:acer_backlight_exit() WARNING: vmlinux.o(.devinit.text+0x1e859): Section mismatch in reference from the function acer_platform_probe() to the function .init.text:acer_led_init() WARNING: vmlinux.o(.devinit.text+0x1e878): Section mismatch in reference from the function acer_platform_probe() to the function .init.text:acer_backlight_init() Remove __exit annotation from acer_backlight_exit(). We cannot reference a __exit annotated function from non __exit functions. acer_led_init() and acer_backlight_init() where both annotated __init but used from a __devinit function. This would result in an oops should gcc drop their inlining and the module are hot plugged. Fix by annotating acer_led_init() and acer_backlight_init() __devinit. Signed-off-by: Sam Ravnborg Cc: Carlos Corbacho Signed-off-by: Len Brown --- drivers/misc/acer-wmi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c index d7aea93081f..cdc733b77fe 100644 --- a/drivers/misc/acer-wmi.c +++ b/drivers/misc/acer-wmi.c @@ -756,7 +756,7 @@ static struct led_classdev mail_led = { .brightness_set = mail_led_set, }; -static int __init acer_led_init(struct device *dev) +static int __devinit acer_led_init(struct device *dev) { return led_classdev_register(dev, &mail_led); } @@ -789,7 +789,7 @@ static struct backlight_ops acer_bl_ops = { .update_status = update_bl_status, }; -static int __init acer_backlight_init(struct device *dev) +static int __devinit acer_backlight_init(struct device *dev) { struct backlight_device *bd; @@ -808,7 +808,7 @@ static int __init acer_backlight_init(struct device *dev) return 0; } -static void __exit acer_backlight_exit(void) +static void acer_backlight_exit(void) { backlight_device_unregister(acer_backlight_device); } -- GitLab From b5678a34762edf2c8de1c60c125fea42a8c17e63 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 17 Feb 2008 13:23:03 +0100 Subject: [PATCH 079/923] ACPI: fix section mismatch in acpi_pci_root_add Fix following warning: WARNING: vmlinux.o(.text+0x550e85): Section mismatch in reference from the function acpi_pci_root_add() to the function .devinit.text:pci_acpi_scan_root() acpi_pci_root_add uses a __devinit annotated function and it looks like annotating it __devinit too is the correct fix. Signed-off-by: Sam Ravnborg Signed-off-by: Len Brown --- drivers/acpi/pci_root.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index f14ff1ffab2..c3fed31166b 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -184,7 +184,7 @@ static void acpi_pci_bridge_scan(struct acpi_device *device) } } -static int acpi_pci_root_add(struct acpi_device *device) +static int __devinit acpi_pci_root_add(struct acpi_device *device) { int result = 0; struct acpi_pci_root *root = NULL; -- GitLab From d399d130c82a1e1751b7770944f487fbd8b6272a Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 20 Feb 2008 00:59:03 +0200 Subject: [PATCH 080/923] sony-laptop.c: fix off-by-one This patch fixes an off-by-one spotted by the Coverity checker. Signed-off-by: Adrian Bunk Acked-by: Mattia Dongili Signed-off-by: Len Brown --- drivers/misc/sony-laptop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c index 899e3f75f28..02ff3d19b1c 100644 --- a/drivers/misc/sony-laptop.c +++ b/drivers/misc/sony-laptop.c @@ -315,7 +315,7 @@ static void sony_laptop_report_input_event(u8 event) break; default: - if (event > ARRAY_SIZE(sony_laptop_input_index)) { + if (event >= ARRAY_SIZE(sony_laptop_input_index)) { dprintk("sony_laptop_report_input_event, event not known: %d\n", event); break; } -- GitLab From 3b5fee5952ff7eb6ff7a64247a01040b8b331b74 Mon Sep 17 00:00:00 2001 From: Holger Macht Date: Thu, 14 Feb 2008 13:40:34 +0100 Subject: [PATCH 081/923] ACPI: Do not pass NULL to acpi_get_handle() when looking for _EJD When trying to get the acpi_handle from an acpi_buffer, pass ACPI_ROOT_OBJECT instead of NULL to acpi_get_handle(). This fixes the detection of dock dependent bays. Signed-off-by: Holger Macht Tested-by: Thomas Renninger Signed-off-by: Len Brown --- drivers/acpi/scan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 3fac011f9cf..d9b914303b9 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -609,7 +609,8 @@ acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd) status = acpi_evaluate_object(handle, "_EJD", NULL, &buffer); if (ACPI_SUCCESS(status)) { obj = buffer.pointer; - status = acpi_get_handle(NULL, obj->string.pointer, ejd); + status = acpi_get_handle(ACPI_ROOT_OBJECT, obj->string.pointer, + ejd); kfree(buffer.pointer); } return status; -- GitLab From fae603121428ba83b7343c88e68a7144525ab3eb Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Wed, 20 Feb 2008 21:10:06 +0100 Subject: [PATCH 082/923] firewire: fix NULL pointer deref. and resource leak By supplying ioctl()s in the wrong order, a userspace client was able to trigger NULL pointer dereferences. Furthermore, by calling ioctl_create_iso_context more than once, new contexts could be created without ever freeing the previously created contexts. Thanks to Anders Blomdell for the report. Signed-off-by: Stefan Richter --- drivers/firewire/fw-cdev.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c index 44ccee26c36..46bc197a047 100644 --- a/drivers/firewire/fw-cdev.c +++ b/drivers/firewire/fw-cdev.c @@ -646,6 +646,10 @@ static int ioctl_create_iso_context(struct client *client, void *buffer) struct fw_cdev_create_iso_context *request = buffer; struct fw_iso_context *context; + /* We only support one context at this time. */ + if (client->iso_context != NULL) + return -EBUSY; + if (request->channel > 63) return -EINVAL; @@ -792,8 +796,9 @@ static int ioctl_start_iso(struct client *client, void *buffer) { struct fw_cdev_start_iso *request = buffer; - if (request->handle != 0) + if (client->iso_context == NULL || request->handle != 0) return -EINVAL; + if (client->iso_context->type == FW_ISO_CONTEXT_RECEIVE) { if (request->tags == 0 || request->tags > 15) return -EINVAL; @@ -810,7 +815,7 @@ static int ioctl_stop_iso(struct client *client, void *buffer) { struct fw_cdev_stop_iso *request = buffer; - if (request->handle != 0) + if (client->iso_context == NULL || request->handle != 0) return -EINVAL; return fw_iso_context_stop(client->iso_context); -- GitLab From 6e5e93424dc66542c548dfaa3bfebe30d46d50dd Mon Sep 17 00:00:00 2001 From: Lachlan McIlroy Date: Fri, 22 Feb 2008 15:36:19 +1100 Subject: [PATCH 083/923] Remove empty file fs/xfs/Makefile-linux-2.6. --- fs/xfs/Makefile-linux-2.6 | 0 1 file changed, 0 insertions(+), 0 deletions(-) delete mode 100644 fs/xfs/Makefile-linux-2.6 diff --git a/fs/xfs/Makefile-linux-2.6 b/fs/xfs/Makefile-linux-2.6 deleted file mode 100644 index e69de29bb2d..00000000000 -- GitLab From 76fc60a2e3c6aa6e98cd3a5cb81a1855c637b274 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sat, 23 Feb 2008 11:12:06 +0800 Subject: [PATCH 084/923] [CRYPTO] skcipher: Move chainiv/seqiv into crypto_blkcipher module For compatibility with dm-crypt initramfs setups it is useful to merge chainiv/seqiv into the crypto_blkcipher module. Since they're required by most algorithms anyway this is an acceptable trade-off. Signed-off-by: Herbert Xu --- crypto/Makefile | 4 ++-- crypto/ablkcipher.c | 3 --- crypto/blkcipher.c | 29 +++++++++++++++++++++++++++++ crypto/chainiv.c | 12 ++++-------- crypto/eseqiv.c | 12 ++++-------- include/crypto/internal/skcipher.h | 6 ++++++ 6 files changed, 45 insertions(+), 21 deletions(-) diff --git a/crypto/Makefile b/crypto/Makefile index 48c75837995..7cf36253a75 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -12,9 +12,9 @@ obj-$(CONFIG_CRYPTO_AEAD) += aead.o crypto_blkcipher-objs := ablkcipher.o crypto_blkcipher-objs += blkcipher.o +crypto_blkcipher-objs += chainiv.o +crypto_blkcipher-objs += eseqiv.o obj-$(CONFIG_CRYPTO_BLKCIPHER) += crypto_blkcipher.o -obj-$(CONFIG_CRYPTO_BLKCIPHER) += chainiv.o -obj-$(CONFIG_CRYPTO_BLKCIPHER) += eseqiv.o obj-$(CONFIG_CRYPTO_SEQIV) += seqiv.o crypto_hash-objs := hash.o diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c index 3bcb099b4a8..94140b3756f 100644 --- a/crypto/ablkcipher.c +++ b/crypto/ablkcipher.c @@ -341,6 +341,3 @@ err: return ERR_PTR(err); } EXPORT_SYMBOL_GPL(crypto_alloc_ablkcipher); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Asynchronous block chaining cipher type"); diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c index 4a7e65c4df4..185f955fb0d 100644 --- a/crypto/blkcipher.c +++ b/crypto/blkcipher.c @@ -696,5 +696,34 @@ void skcipher_geniv_exit(struct crypto_tfm *tfm) } EXPORT_SYMBOL_GPL(skcipher_geniv_exit); +static int __init blkcipher_module_init(void) +{ + int err; + + err = chainiv_module_init(); + if (err) + goto out; + + err = eseqiv_module_init(); + if (err) + goto eseqiv_err; + +out: + return err; + +eseqiv_err: + chainiv_module_exit(); + goto out; +} + +static void __exit blkcipher_module_exit(void) +{ + eseqiv_module_exit(); + chainiv_module_exit(); +} + +module_init(blkcipher_module_init); +module_exit(blkcipher_module_exit); + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Generic block chaining cipher type"); diff --git a/crypto/chainiv.c b/crypto/chainiv.c index d17fa0454dc..0a7cac6e908 100644 --- a/crypto/chainiv.c +++ b/crypto/chainiv.c @@ -314,18 +314,14 @@ static struct crypto_template chainiv_tmpl = { .module = THIS_MODULE, }; -static int __init chainiv_module_init(void) +int __init chainiv_module_init(void) { return crypto_register_template(&chainiv_tmpl); } +EXPORT_SYMBOL_GPL(chainiv_module_init); -static void __exit chainiv_module_exit(void) +void __exit chainiv_module_exit(void) { crypto_unregister_template(&chainiv_tmpl); } - -module_init(chainiv_module_init); -module_exit(chainiv_module_exit); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Chain IV Generator"); +EXPORT_SYMBOL_GPL(chainiv_module_exit); diff --git a/crypto/eseqiv.c b/crypto/eseqiv.c index eb90d27ae11..6f2cd063b6f 100644 --- a/crypto/eseqiv.c +++ b/crypto/eseqiv.c @@ -247,18 +247,14 @@ static struct crypto_template eseqiv_tmpl = { .module = THIS_MODULE, }; -static int __init eseqiv_module_init(void) +int __init eseqiv_module_init(void) { return crypto_register_template(&eseqiv_tmpl); } +EXPORT_SYMBOL_GPL(eseqiv_module_init); -static void __exit eseqiv_module_exit(void) +void __exit eseqiv_module_exit(void) { crypto_unregister_template(&eseqiv_tmpl); } - -module_init(eseqiv_module_init); -module_exit(eseqiv_module_exit); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Encrypted Sequence Number IV Generator"); +EXPORT_SYMBOL_GPL(eseqiv_module_exit); diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h index 2ba42cd7d6a..a8f12644a13 100644 --- a/include/crypto/internal/skcipher.h +++ b/include/crypto/internal/skcipher.h @@ -15,6 +15,7 @@ #include #include +#include #include struct rtattr; @@ -64,6 +65,11 @@ void skcipher_geniv_free(struct crypto_instance *inst); int skcipher_geniv_init(struct crypto_tfm *tfm); void skcipher_geniv_exit(struct crypto_tfm *tfm); +int __init eseqiv_module_init(void); +void __exit eseqiv_module_exit(void); +int __init chainiv_module_init(void); +void __exit chainiv_module_exit(void); + static inline struct crypto_ablkcipher *skcipher_geniv_cipher( struct crypto_ablkcipher *geniv) { -- GitLab From 3e16bfbaf3195b4725bc87d6a1ef11bf7716e83d Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sat, 23 Feb 2008 11:13:00 +0800 Subject: [PATCH 085/923] [CRYPTO] authenc: Add missing Kconfig dependency on BLKCIPHER The authenc algorithm requires BLKCIPHER to be present. Signed-off-by: Herbert Xu --- crypto/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/crypto/Kconfig b/crypto/Kconfig index 898acc5c196..69f1be6816f 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -575,6 +575,7 @@ config CRYPTO_TEST config CRYPTO_AUTHENC tristate "Authenc support" select CRYPTO_AEAD + select CRYPTO_BLKCIPHER select CRYPTO_MANAGER select CRYPTO_HASH help -- GitLab From 7ce9573e093891f5807e6e50f3bd2012f1e5d0fe Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 22 Feb 2008 11:25:04 -0800 Subject: [PATCH 086/923] ACPI: prevent randconfig build failure on empty ACPI_CUSTOM_DSDT_FILE Make ACPI_CUSTOM_DSDT boolean config symbol a hidden and derived value, based on the value of ACPI_CUSTOM_DSDT_FILE (string). Only the latter is presented to the user as a config option. This fixes problems with "make randconfig" setting ACPI_CUSTOM_DSDT but leaving ACPI_CUSTOM_DSDT_FILE empty/blank. Signed-off-by: Randy Dunlap Signed-off-by: Len Brown --- drivers/acpi/Kconfig | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index f688c214be0..fbcaa069be8 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -283,24 +283,23 @@ config ACPI_TOSHIBA If you have a legacy free Toshiba laptop (such as the Libretto L1 series), say Y. -config ACPI_CUSTOM_DSDT - bool "Include Custom DSDT" +config ACPI_CUSTOM_DSDT_FILE + string "Custom DSDT Table file to include" + default "" depends on !STANDALONE - default n help This option supports a custom DSDT by linking it into the kernel. See Documentation/acpi/dsdt-override.txt - If unsure, say N. - -config ACPI_CUSTOM_DSDT_FILE - string "Custom DSDT Table file to include" - depends on ACPI_CUSTOM_DSDT - default "" - help Enter the full path name to the file which includes the AmlCode declaration. + If unsure, don't enter a file name. + +config ACPI_CUSTOM_DSDT + bool + default ACPI_CUSTOM_DSDT_FILE != "" + config ACPI_CUSTOM_DSDT_INITRD bool "Read Custom DSDT from initramfs" depends on BLK_DEV_INITRD -- GitLab From 583c377f1d58e705f75d8d5648ab41722be1ebca Mon Sep 17 00:00:00 2001 From: David Brownell Date: Fri, 22 Feb 2008 21:41:51 -0800 Subject: [PATCH 087/923] ACPI: acpi_pci_set_power_state() cleanups Minor cleanups to acpi_pci_set_power_state(): use the ACPI and PCI state symbols to make clear that a mapping is being done between PCI and ACPI states, instead of using magic numbers. For paranoia's sake, report any errors. Save five bytes (x86_64) too. Signed-off-by: David Brownell Signed-off-by: Len Brown --- drivers/pci/pci-acpi.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 4a23654184f..72f7476930c 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -272,21 +272,29 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) { acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); acpi_handle tmp; - static int state_conv[] = { - [0] = 0, - [1] = 1, - [2] = 2, - [3] = 3, - [4] = 3 + static const u8 state_conv[] = { + [PCI_D0] = ACPI_STATE_D0, + [PCI_D1] = ACPI_STATE_D1, + [PCI_D2] = ACPI_STATE_D2, + [PCI_D3hot] = ACPI_STATE_D3, + [PCI_D3cold] = ACPI_STATE_D3 }; - int acpi_state = state_conv[(int __force) state]; if (!handle) return -ENODEV; /* If the ACPI device has _EJ0, ignore the device */ if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp))) return 0; - return acpi_bus_set_power(handle, acpi_state); + + switch (state) { + case PCI_D0: + case PCI_D1: + case PCI_D2: + case PCI_D3hot: + case PCI_D3cold: + return acpi_bus_set_power(handle, state_conv[state]); + } + return -EINVAL; } -- GitLab From f5ab0d1f8f7df937778c60c3da6f4ef939a54a7b Mon Sep 17 00:00:00 2001 From: Mingming Cao Date: Mon, 25 Feb 2008 15:29:55 -0500 Subject: [PATCH 088/923] ext4: Fix BUG when writing to an unitialized extent This patch fixes a bug when writing to preallocated but uninitialized blocks, which resulted in a BUG in fs/buffer.c saying that the buffer is not mapped. When writing to a file, ext4_get_block_wrap() is called with create=1 in order to request that blocks be allocated if necessary. It currently calls ext4_get_blocks() with create=0 in order to do a lookup first. If the inode contains an unitialized data block, the buffer head is left unampped, which ext4_get_blocks_wrap() returns, causing the BUG. We fix this by checking to see if the buffer head is unmapped, and if so, we make sure the the buffer head is mapped by calling ext4_ext_get_blocks with create=1. Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 13 +++++++++++++ fs/ext4/inode.c | 47 ++++++++++++++++++++++++++++++++++++++++++++--- 2 files changed, 57 insertions(+), 3 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 8a59f7ba30e..bcf5d040e32 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2287,9 +2287,22 @@ out: } /* + * Block allocation/map/preallocation routine for extents based files + * + * * Need to be called with * down_read(&EXT4_I(inode)->i_data_sem) if not allocating file system block * (ie, create is zero). Otherwise down_write(&EXT4_I(inode)->i_data_sem) + * + * return > 0, number of of blocks already mapped/allocated + * if create == 0 and these are pre-allocated blocks + * buffer head is unmapped + * otherwise blocks are mapped + * + * return = 0, if plain look up failed (blocks have not been allocated) + * buffer head is unmapped + * + * return < 0, error case. */ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, ext4_lblk_t iblock, diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 34f3eb615fd..945cbf6cb1f 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -908,11 +908,38 @@ out: */ #define DIO_CREDITS 25 + +/* + * + * + * ext4_ext4 get_block() wrapper function + * It will do a look up first, and returns if the blocks already mapped. + * Otherwise it takes the write lock of the i_data_sem and allocate blocks + * and store the allocated blocks in the result buffer head and mark it + * mapped. + * + * If file type is extents based, it will call ext4_ext_get_blocks(), + * Otherwise, call with ext4_get_blocks_handle() to handle indirect mapping + * based files + * + * On success, it returns the number of blocks being mapped or allocate. + * if create==0 and the blocks are pre-allocated and uninitialized block, + * the result buffer head is unmapped. If the create ==1, it will make sure + * the buffer head is mapped. + * + * It returns 0 if plain look up failed (blocks have not been allocated), in + * that casem, buffer head is unmapped + * + * It returns the error in case of allocation failure. + */ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block, unsigned long max_blocks, struct buffer_head *bh, int create, int extend_disksize) { int retval; + + clear_buffer_mapped(bh); + /* * Try to see if we can get the block without requesting * for new file system block. @@ -926,12 +953,26 @@ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block, inode, block, max_blocks, bh, 0, 0); } up_read((&EXT4_I(inode)->i_data_sem)); - if (!create || (retval > 0)) + + /* If it is only a block(s) look up */ + if (!create) + return retval; + + /* + * Returns if the blocks have already allocated + * + * Note that if blocks have been preallocated + * ext4_ext_get_block() returns th create = 0 + * with buffer head unmapped. + */ + if (retval > 0 && buffer_mapped(bh)) return retval; /* - * We need to allocate new blocks which will result - * in i_data update + * New blocks allocate and/or writing to uninitialized extent + * will possibly result in updating i_data, so we take + * the write lock of i_data_sem, and call get_blocks() + * with create == 1 flag. */ down_write((&EXT4_I(inode)->i_data_sem)); /* -- GitLab From 2c98615d3b64ce7888cd46cc668023f456daf287 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Mon, 25 Feb 2008 15:41:35 -0500 Subject: [PATCH 089/923] ext4: Don't mark filesystem error if fallocate fails If we fail to allocate blocks don't call ext4_error. Also don't hide errors from ext4_get_blocks_wrap Signed-off-by: Aneesh Kumar K.V Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index bcf5d040e32..9ae6e67090c 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2661,13 +2661,14 @@ retry: ret = ext4_get_blocks_wrap(handle, inode, block, max_blocks, &map_bh, EXT4_CREATE_UNINITIALIZED_EXT, 0); - WARN_ON(ret <= 0); if (ret <= 0) { - ext4_error(inode->i_sb, "ext4_fallocate", - "ext4_ext_get_blocks returned error: " - "inode#%lu, block=%u, max_blocks=%lu", +#ifdef EXT4FS_DEBUG + WARN_ON(ret <= 0); + printk(KERN_ERR "%s: ext4_ext_get_blocks " + "returned error inode#%lu, block=%u, " + "max_blocks=%lu", __func__, inode->i_ino, block, max_blocks); - ret = -EIO; +#endif ext4_mark_inode_dirty(handle, inode); ret2 = ext4_journal_stop(handle); break; -- GitLab From 42bf0383d1e09dd1b38f3debb13a76b2f87634b3 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Mon, 25 Feb 2008 16:38:03 -0500 Subject: [PATCH 090/923] ext4: set EXT4_EXTENTS_FL only for directory and regular files In addition, don't inherit EXT4_EXTENTS_FL from parent directory. If we have a directory with extent flag set and later mount the file system with -o noextents, the files created in that directory will also have extent flag set but we would not have called ext4_ext_tree_init for them. This will cause error later when we are verifying the extent header Signed-off-by: Aneesh Kumar K.V Acked-off-by: Eric Sandeen Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/ialloc.c | 22 +++++++++++++++------- fs/ext4/namei.c | 1 - 2 files changed, 15 insertions(+), 8 deletions(-) diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index da18a74b966..8036b9b5376 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -702,7 +702,12 @@ got: ei->i_dir_start_lookup = 0; ei->i_disksize = 0; - ei->i_flags = EXT4_I(dir)->i_flags & ~EXT4_INDEX_FL; + /* + * Don't inherit extent flag from directory. We set extent flag on + * newly created directory and file only if -o extent mount option is + * specified + */ + ei->i_flags = EXT4_I(dir)->i_flags & ~(EXT4_INDEX_FL|EXT4_EXTENTS_FL); if (S_ISLNK(mode)) ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL); /* dirsync only applies to directories */ @@ -745,12 +750,15 @@ got: goto fail_free_drop; } if (test_opt(sb, EXTENTS)) { - EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL; - ext4_ext_tree_init(handle, inode); - err = ext4_update_incompat_feature(handle, sb, - EXT4_FEATURE_INCOMPAT_EXTENTS); - if (err) - goto fail; + /* set extent flag only for directory and file */ + if (S_ISDIR(mode) || S_ISREG(mode)) { + EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL; + ext4_ext_tree_init(handle, inode); + err = ext4_update_incompat_feature(handle, sb, + EXT4_FEATURE_INCOMPAT_EXTENTS); + if (err) + goto fail; + } } ext4_debug("allocating inode %lu\n", inode->i_ino); diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 5a79c6b6dc6..28aa2ed4297 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2220,7 +2220,6 @@ retry: inode->i_op = &ext4_fast_symlink_inode_operations; memcpy((char*)&EXT4_I(inode)->i_data,symname,l); inode->i_size = l-1; - EXT4_I(inode)->i_flags &= ~EXT4_EXTENTS_FL; } EXT4_I(inode)->i_disksize = inode->i_size; err = ext4_add_nondir(handle, dentry, inode); -- GitLab From ffad0a44b7216d0f079dcf95a351082099d1e5fb Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Sat, 23 Feb 2008 01:38:34 -0500 Subject: [PATCH 091/923] ext4: ext4_find_next_zero_bit needs an aligned address on some arch ext4_find_next_zero_bit and ext4_find_next_bit needs a long aligned address on x8_64. Add mb_find_next_zero_bit and mb_find_next_bit and use them in the mballoc. Fix: https://bugzilla.redhat.com/show_bug.cgi?id=433286 Eric Sandeen debugged the problem and suggested the fix. Signed-off-by: Aneesh Kumar K.V Acked-by: Eric Sandeen Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/mballoc.c | 62 ++++++++++++++++++++++++++++++----------------- 1 file changed, 40 insertions(+), 22 deletions(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 6968c53e62a..ef97f19c2f9 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -627,21 +627,19 @@ static ext4_fsblk_t ext4_grp_offs_to_block(struct super_block *sb, return block; } +static inline void *mb_correct_addr_and_bit(int *bit, void *addr) +{ #if BITS_PER_LONG == 64 -#define mb_correct_addr_and_bit(bit, addr) \ -{ \ - bit += ((unsigned long) addr & 7UL) << 3; \ - addr = (void *) ((unsigned long) addr & ~7UL); \ -} + *bit += ((unsigned long) addr & 7UL) << 3; + addr = (void *) ((unsigned long) addr & ~7UL); #elif BITS_PER_LONG == 32 -#define mb_correct_addr_and_bit(bit, addr) \ -{ \ - bit += ((unsigned long) addr & 3UL) << 3; \ - addr = (void *) ((unsigned long) addr & ~3UL); \ -} + *bit += ((unsigned long) addr & 3UL) << 3; + addr = (void *) ((unsigned long) addr & ~3UL); #else #error "how many bits you are?!" #endif + return addr; +} static inline int mb_test_bit(int bit, void *addr) { @@ -649,34 +647,54 @@ static inline int mb_test_bit(int bit, void *addr) * ext4_test_bit on architecture like powerpc * needs unsigned long aligned address */ - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); return ext4_test_bit(bit, addr); } static inline void mb_set_bit(int bit, void *addr) { - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); ext4_set_bit(bit, addr); } static inline void mb_set_bit_atomic(spinlock_t *lock, int bit, void *addr) { - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); ext4_set_bit_atomic(lock, bit, addr); } static inline void mb_clear_bit(int bit, void *addr) { - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); ext4_clear_bit(bit, addr); } static inline void mb_clear_bit_atomic(spinlock_t *lock, int bit, void *addr) { - mb_correct_addr_and_bit(bit, addr); + addr = mb_correct_addr_and_bit(&bit, addr); ext4_clear_bit_atomic(lock, bit, addr); } +static inline int mb_find_next_zero_bit(void *addr, int max, int start) +{ + int fix = 0; + addr = mb_correct_addr_and_bit(&fix, addr); + max += fix; + start += fix; + + return ext4_find_next_zero_bit(addr, max, start) - fix; +} + +static inline int mb_find_next_bit(void *addr, int max, int start) +{ + int fix = 0; + addr = mb_correct_addr_and_bit(&fix, addr); + max += fix; + start += fix; + + return ext4_find_next_bit(addr, max, start) - fix; +} + static void *mb_find_buddy(struct ext4_buddy *e4b, int order, int *max) { char *bb; @@ -946,12 +964,12 @@ static void ext4_mb_generate_buddy(struct super_block *sb, /* initialize buddy from bitmap which is aggregation * of on-disk bitmap and preallocations */ - i = ext4_find_next_zero_bit(bitmap, max, 0); + i = mb_find_next_zero_bit(bitmap, max, 0); grp->bb_first_free = i; while (i < max) { fragments++; first = i; - i = ext4_find_next_bit(bitmap, max, i); + i = mb_find_next_bit(bitmap, max, i); len = i - first; free += len; if (len > 1) @@ -959,7 +977,7 @@ static void ext4_mb_generate_buddy(struct super_block *sb, else grp->bb_counters[0]++; if (i < max) - i = ext4_find_next_zero_bit(bitmap, max, i); + i = mb_find_next_zero_bit(bitmap, max, i); } grp->bb_fragments = fragments; @@ -1782,7 +1800,7 @@ static void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac, buddy = mb_find_buddy(e4b, i, &max); BUG_ON(buddy == NULL); - k = ext4_find_next_zero_bit(buddy, max, 0); + k = mb_find_next_zero_bit(buddy, max, 0); BUG_ON(k >= max); ac->ac_found++; @@ -1822,7 +1840,7 @@ static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac, i = e4b->bd_info->bb_first_free; while (free && ac->ac_status == AC_STATUS_CONTINUE) { - i = ext4_find_next_zero_bit(bitmap, + i = mb_find_next_zero_bit(bitmap, EXT4_BLOCKS_PER_GROUP(sb), i); if (i >= EXT4_BLOCKS_PER_GROUP(sb)) { /* @@ -3750,10 +3768,10 @@ static int ext4_mb_release_inode_pa(struct ext4_buddy *e4b, } while (bit < end) { - bit = ext4_find_next_zero_bit(bitmap_bh->b_data, end, bit); + bit = mb_find_next_zero_bit(bitmap_bh->b_data, end, bit); if (bit >= end) break; - next = ext4_find_next_bit(bitmap_bh->b_data, end, bit); + next = mb_find_next_bit(bitmap_bh->b_data, end, bit); if (next > end) next = end; start = group * EXT4_BLOCKS_PER_GROUP(sb) + bit + -- GitLab From d0ce46f550ebbd765881e8c48f43b66285d798b0 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Sat, 23 Feb 2008 01:53:09 -0500 Subject: [PATCH 092/923] ACPI Exception (): AE_NOT_FOUND, Processor Device is not present (update) update cfaf3747ff3d431fba33f75083b7f50f58ae22ff ACPI: ACPI Exception (): AE_NOT_FOUND, Processor Device is not present is_processor_present is only called in the processor hotplug case, and _STA method is mandatory at this time. We should ignore those processors that are disabled in the MADT and don't have _STA methods. Because they will never exist in this system. For the processors that don't physically exist but can be hot plugged later, we still need this debug info. http://bugzilla.kernel.org/show_bug.cgi?id=8570 Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/processor_core.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index a3cc8a98255..d9316ab6634 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -840,17 +840,19 @@ static int is_processor_present(acpi_handle handle) status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); - /* - * if a processor object does not have an _STA object, - * OSPM assumes that the processor is present. - */ - if (status == AE_NOT_FOUND) - return 1; if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT)) return 1; - ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present")); + /* + * _STA is mandatory for a processor that supports hot plug + */ + if (status == AE_NOT_FOUND) + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Processor does not support hot plug\n")); + else + ACPI_EXCEPTION((AE_INFO, status, + "Processor Device is not present")); return 0; } -- GitLab From eea5ff7bde45c7724594e6a3c9a6290691ddabe9 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sat, 23 Feb 2008 23:51:00 -0600 Subject: [PATCH 093/923] [SCSI] mvsas: remove execute permission from file mvsas.c picked up execute permissions. Move it back to being a plane old file. James Bottomley Signed-off-by: James Bottomley --- drivers/scsi/mvsas.c | 0 1 file changed, 0 insertions(+), 0 deletions(-) mode change 100755 => 100644 drivers/scsi/mvsas.c diff --git a/drivers/scsi/mvsas.c b/drivers/scsi/mvsas.c old mode 100755 new mode 100644 -- GitLab From 4187377b2411d43ea4470b35162917a5093857bf Mon Sep 17 00:00:00 2001 From: Eric Dujardin Date: Sat, 23 Feb 2008 22:51:28 -0700 Subject: [PATCH 094/923] [POWERPC] Add export for mpc52xx_set_psc_clkdiv mpc52xx_set_psc_clkdiv is needed by PSC device drivers. Signed-off-by: Eric Dujardin Signed-off-by: Grant Likely --- arch/powerpc/platforms/52xx/mpc52xx_common.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c index 9aa4425d80b..4d5fd1dbd40 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_common.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c @@ -199,6 +199,7 @@ int mpc52xx_set_psc_clkdiv(int psc_id, int clkdiv) return 0; } +EXPORT_SYMBOL(mpc52xx_set_psc_clkdiv); /** * mpc52xx_restart: ppc_md->restart hook for mpc5200 using the watchdog timer -- GitLab From 5319578ca38a8b90b6d0270c194c65d1dd8f7725 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sat, 23 Feb 2008 23:35:44 -0600 Subject: [PATCH 095/923] [SCSI] libsas: export sas_find_local_phy function This is needed by the to be added I_T reset function in aic94xx. It needs to know the local phy so it can send a link or hard reset along the path. Signed-off-by: James Bottomley --- drivers/scsi/libsas/sas_scsi_host.c | 5 +++-- include/scsi/libsas.h | 1 + 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 704ea06a6e5..f3706f4b79c 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -434,7 +434,7 @@ static int sas_recover_I_T(struct domain_device *dev) } /* Find the sas_phy that's attached to this device */ -static struct sas_phy *find_local_sas_phy(struct domain_device *dev) +struct sas_phy *sas_find_local_phy(struct domain_device *dev) { struct domain_device *pdev = dev->parent; struct ex_phy *exphy = NULL; @@ -456,6 +456,7 @@ static struct sas_phy *find_local_sas_phy(struct domain_device *dev) BUG_ON(!exphy); return exphy->phy; } +EXPORT_SYMBOL_GPL(sas_find_local_phy); /* Attempt to send a LUN reset message to a device */ int sas_eh_device_reset_handler(struct scsi_cmnd *cmd) @@ -482,7 +483,7 @@ int sas_eh_device_reset_handler(struct scsi_cmnd *cmd) int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd) { struct domain_device *dev = cmd_to_domain_dev(cmd); - struct sas_phy *phy = find_local_sas_phy(dev); + struct sas_phy *phy = sas_find_local_phy(dev); int res; res = sas_phy_reset(phy, 1); diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index 3ffd6b582a9..39e1cac24bb 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -675,5 +675,6 @@ extern int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, extern void sas_ssp_task_response(struct device *dev, struct sas_task *task, struct ssp_response_iu *iu); +struct sas_phy *sas_find_local_phy(struct domain_device *dev); #endif /* _SASLIB_H_ */ -- GitLab From 63edf49e67cac710826108697c4e8636c89abd17 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sat, 23 Feb 2008 23:37:26 -0600 Subject: [PATCH 096/923] [SCSI] aic94xx: plumb in I_T_nexus_reset task management function Currently aic94xx has no exported I_T_nexus_reset function. This is a bit of a huge problem, since sas_ata relies on this function to perform an ATA phy reset and also it means that if abort fails, we really have no bigger hammer to hit everything with. Plumb in the I_T_nexus_reset by quiescing the sequencer, sending the correct phy reset (link for ATA and hard for SAS) and then carefully resuming the sequencer again. Signed-off-by: James Bottomley --- drivers/scsi/aic94xx/aic94xx.h | 1 + drivers/scsi/aic94xx/aic94xx_init.c | 2 +- drivers/scsi/aic94xx/aic94xx_tmf.c | 58 +++++++++++++++++++++++++++-- 3 files changed, 56 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx.h b/drivers/scsi/aic94xx/aic94xx.h index 32f513b1b78..eb8efdcefe4 100644 --- a/drivers/scsi/aic94xx/aic94xx.h +++ b/drivers/scsi/aic94xx/aic94xx.h @@ -102,6 +102,7 @@ int asd_abort_task_set(struct domain_device *, u8 *lun); int asd_clear_aca(struct domain_device *, u8 *lun); int asd_clear_task_set(struct domain_device *, u8 *lun); int asd_lu_reset(struct domain_device *, u8 *lun); +int asd_I_T_nexus_reset(struct domain_device *dev); int asd_query_task(struct sas_task *); /* ---------- Adapter and Port management ---------- */ diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index 5d761eb6744..88d1e731b65 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -1003,7 +1003,7 @@ static struct sas_domain_function_template aic94xx_transport_functions = { .lldd_abort_task_set = asd_abort_task_set, .lldd_clear_aca = asd_clear_aca, .lldd_clear_task_set = asd_clear_task_set, - .lldd_I_T_nexus_reset = NULL, + .lldd_I_T_nexus_reset = asd_I_T_nexus_reset, .lldd_lu_reset = asd_lu_reset, .lldd_query_task = asd_query_task, diff --git a/drivers/scsi/aic94xx/aic94xx_tmf.c b/drivers/scsi/aic94xx/aic94xx_tmf.c index 144f5ad2045..d684c7432e6 100644 --- a/drivers/scsi/aic94xx/aic94xx_tmf.c +++ b/drivers/scsi/aic94xx/aic94xx_tmf.c @@ -140,8 +140,14 @@ int asd_clear_nexus_port(struct asd_sas_port *port) CLEAR_NEXUS_POST; } -#if 0 -static int asd_clear_nexus_I_T(struct domain_device *dev) +enum clear_nexus_phase { + NEXUS_PHASE_PRE, + NEXUS_PHASE_POST, + NEXUS_PHASE_RESUME, +}; + +static int asd_clear_nexus_I_T(struct domain_device *dev, + enum clear_nexus_phase phase) { struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha; struct asd_ascb *ascb; @@ -150,12 +156,56 @@ static int asd_clear_nexus_I_T(struct domain_device *dev) CLEAR_NEXUS_PRE; scb->clear_nexus.nexus = NEXUS_I_T; - scb->clear_nexus.flags = SEND_Q | EXEC_Q | NOTINQ; + switch (phase) { + case NEXUS_PHASE_PRE: + scb->clear_nexus.flags = EXEC_Q | SUSPEND_TX; + break; + case NEXUS_PHASE_POST: + scb->clear_nexus.flags = SEND_Q | NOTINQ; + break; + case NEXUS_PHASE_RESUME: + scb->clear_nexus.flags = RESUME_TX; + } scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long) dev->lldd_dev); CLEAR_NEXUS_POST; } -#endif + +int asd_I_T_nexus_reset(struct domain_device *dev) +{ + int res, tmp_res, i; + struct sas_phy *phy = sas_find_local_phy(dev); + /* Standard mandates link reset for ATA (type 0) and + * hard reset for SSP (type 1) */ + int reset_type = (dev->dev_type == SATA_DEV || + (dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; + + asd_clear_nexus_I_T(dev, NEXUS_PHASE_PRE); + /* send a hard reset */ + ASD_DPRINTK("sending %s reset to %s\n", + reset_type ? "hard" : "soft", phy->dev.bus_id); + res = sas_phy_reset(phy, reset_type); + if (res == TMF_RESP_FUNC_COMPLETE) { + /* wait for the maximum settle time */ + msleep(500); + /* clear all outstanding commands (keep nexus suspended) */ + asd_clear_nexus_I_T(dev, NEXUS_PHASE_POST); + } + for (i = 0 ; i < 3; i++) { + tmp_res = asd_clear_nexus_I_T(dev, NEXUS_PHASE_RESUME); + if (tmp_res == TC_RESUME) + return res; + msleep(500); + } + + /* This is a bit of a problem: the sequencer is still suspended + * and is refusing to resume. Hope it will resume on a bigger hammer + * or the disk is lost */ + dev_printk(KERN_ERR, &phy->dev, + "Failed to resume nexus after reset 0x%x\n", tmp_res); + + return TMF_RESP_FUNC_FAILED; +} static int asd_clear_nexus_I_T_L(struct domain_device *dev, u8 *lun) { -- GitLab From a29c05153630b2cd5ea078c97c0abe084cd830d8 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sat, 23 Feb 2008 23:38:44 -0600 Subject: [PATCH 097/923] [SCSI] libsas: use the supplied address for SATA devices rather than changing it Once the phy reset is plumbed in properly, SATA error handling fails nastily because we change the port attached_sas_address using the WWN field of the IDENTIFY message. This is a nice thing to do in theory, but it really destroys hotplug because any event on the port causes an automatic mismatch between the sas_address the phy just picked up and the one we propagate into the port. However ugly they are, we have to stick with the sas addresses made up by the phys and expanders. Also does a few cosmetic changes to the way port printing is done to make it clearer how a port is formed. Signed-off-by: James Bottomley --- drivers/scsi/libsas/sas_ata.c | 39 ++-------------------------------- drivers/scsi/libsas/sas_port.c | 11 +++++----- 2 files changed, 8 insertions(+), 42 deletions(-) diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 7cd05b599a1..b0e5ac372a3 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -236,12 +236,12 @@ static void sas_ata_phy_reset(struct ata_port *ap) struct domain_device *dev = ap->private_data; struct sas_internal *i = to_sas_internal(dev->port->ha->core.shost->transportt); - int res = 0; + int res = TMF_RESP_FUNC_FAILED; if (i->dft->lldd_I_T_nexus_reset) res = i->dft->lldd_I_T_nexus_reset(dev); - if (res) + if (res != TMF_RESP_FUNC_COMPLETE) SAS_DPRINTK("%s: Unable to reset I T nexus?\n", __FUNCTION__); switch (dev->sata_dev.command_set) { @@ -656,21 +656,6 @@ out: return res; } -static void sas_sata_propagate_sas_addr(struct domain_device *dev) -{ - unsigned long flags; - struct asd_sas_port *port = dev->port; - struct asd_sas_phy *phy; - - BUG_ON(dev->parent); - - memcpy(port->attached_sas_addr, dev->sas_addr, SAS_ADDR_SIZE); - spin_lock_irqsave(&port->phy_list_lock, flags); - list_for_each_entry(phy, &port->phy_list, port_phy_el) - memcpy(phy->attached_sas_addr, dev->sas_addr, SAS_ADDR_SIZE); - spin_unlock_irqrestore(&port->phy_list_lock, flags); -} - #define ATA_IDENTIFY_DEV 0xEC #define ATA_IDENTIFY_PACKET_DEV 0xA1 #define ATA_SET_FEATURES 0xEF @@ -728,26 +713,6 @@ static int sas_discover_sata_dev(struct domain_device *dev) goto out_err; } cont1: - /* Get WWN */ - if (dev->port->oob_mode != SATA_OOB_MODE) { - memcpy(dev->sas_addr, dev->sata_dev.rps_resp.rps.stp_sas_addr, - SAS_ADDR_SIZE); - } else if (dev->sata_dev.command_set == ATA_COMMAND_SET && - (le16_to_cpu(dev->sata_dev.identify_device[108]) & 0xF000) - == 0x5000) { - int i; - - for (i = 0; i < 4; i++) { - dev->sas_addr[2*i] = - (le16_to_cpu(dev->sata_dev.identify_device[108+i]) & 0xFF00) >> 8; - dev->sas_addr[2*i+1] = - le16_to_cpu(dev->sata_dev.identify_device[108+i]) & 0x00FF; - } - } - sas_hash_addr(dev->hashed_sas_addr, dev->sas_addr); - if (!dev->parent) - sas_sata_propagate_sas_addr(dev); - /* XXX Hint: register this SATA device with SATL. When this returns, dev->sata_dev->lu is alive and present. diff --git a/drivers/scsi/libsas/sas_port.c b/drivers/scsi/libsas/sas_port.c index e1e2d085c92..39ae68a3b0e 100644 --- a/drivers/scsi/libsas/sas_port.c +++ b/drivers/scsi/libsas/sas_port.c @@ -92,9 +92,6 @@ static void sas_form_port(struct asd_sas_phy *phy) if (!port->phy) port->phy = phy->phy; - SAS_DPRINTK("phy%d added to port%d, phy_mask:0x%x\n", phy->id, - port->id, port->phy_mask); - if (*(u64 *)port->attached_sas_addr == 0) { port->class = phy->class; memcpy(port->attached_sas_addr, phy->attached_sas_addr, @@ -115,6 +112,11 @@ static void sas_form_port(struct asd_sas_phy *phy) } sas_port_add_phy(port->port, phy->phy); + SAS_DPRINTK("%s added to %s, phy_mask:0x%x (%16llx)\n", + phy->phy->dev.bus_id,port->port->dev.bus_id, + port->phy_mask, + SAS_ADDR(port->attached_sas_addr)); + if (port->port_dev) port->port_dev->pathways = port->num_phys; @@ -255,12 +257,11 @@ void sas_porte_hard_reset(struct work_struct *work) static void sas_init_port(struct asd_sas_port *port, struct sas_ha_struct *sas_ha, int i) { + memset(port, 0, sizeof(*port)); port->id = i; INIT_LIST_HEAD(&port->dev_list); spin_lock_init(&port->phy_list_lock); INIT_LIST_HEAD(&port->phy_list); - port->num_phys = 0; - port->phy_mask = 0; port->ha = sas_ha; spin_lock_init(&port->dev_list_lock); -- GitLab From 8de3ef25a1fcd28d270b69417a41b424826d4f89 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sat, 23 Feb 2008 23:39:59 -0600 Subject: [PATCH 098/923] [SCSI] libsas: misc fixes to the eh path - Correct one use after free of the sas task - update the reset required path to move straight to LUN reset - make the bigger hammer actually reset something instead of just trying to clear all the tasks. Signed-off-by: James Bottomley --- drivers/scsi/libsas/sas_scsi_host.c | 29 ++++++++++++----------------- 1 file changed, 12 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index f3706f4b79c..1f8241563c6 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -498,10 +498,10 @@ int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd) } /* Try to reset a device */ -static int try_to_reset_cmd_device(struct Scsi_Host *shost, - struct scsi_cmnd *cmd) +static int try_to_reset_cmd_device(struct scsi_cmnd *cmd) { int res; + struct Scsi_Host *shost = cmd->device->host; if (!shost->hostt->eh_device_reset_handler) goto try_bus_reset; @@ -541,6 +541,12 @@ Again: need_reset = task->task_state_flags & SAS_TASK_NEED_DEV_RESET; spin_unlock_irqrestore(&task->task_state_lock, flags); + if (need_reset) { + SAS_DPRINTK("%s: task 0x%p requests reset\n", + __FUNCTION__, task); + goto reset; + } + SAS_DPRINTK("trying to find task 0x%p\n", task); res = sas_scsi_find_task(task); @@ -551,18 +557,15 @@ Again: SAS_DPRINTK("%s: task 0x%p is done\n", __FUNCTION__, task); sas_eh_finish_cmd(cmd); - if (need_reset) - try_to_reset_cmd_device(shost, cmd); continue; case TASK_IS_ABORTED: SAS_DPRINTK("%s: task 0x%p is aborted\n", __FUNCTION__, task); sas_eh_finish_cmd(cmd); - if (need_reset) - try_to_reset_cmd_device(shost, cmd); continue; case TASK_IS_AT_LU: SAS_DPRINTK("task 0x%p is at LU: lu recover\n", task); + reset: tmf_resp = sas_recover_lu(task->dev, cmd); if (tmf_resp == TMF_RESP_FUNC_COMPLETE) { SAS_DPRINTK("dev %016llx LU %x is " @@ -570,8 +573,6 @@ Again: SAS_ADDR(task->dev), cmd->device->lun); sas_eh_finish_cmd(cmd); - if (need_reset) - try_to_reset_cmd_device(shost, cmd); sas_scsi_clear_queue_lu(work_q, cmd); goto Again; } @@ -582,15 +583,15 @@ Again: task); tmf_resp = sas_recover_I_T(task->dev); if (tmf_resp == TMF_RESP_FUNC_COMPLETE) { + struct domain_device *dev = task->dev; SAS_DPRINTK("I_T %016llx recovered\n", SAS_ADDR(task->dev->sas_addr)); sas_eh_finish_cmd(cmd); - if (need_reset) - try_to_reset_cmd_device(shost, cmd); - sas_scsi_clear_queue_I_T(work_q, task->dev); + sas_scsi_clear_queue_I_T(work_q, dev); goto Again; } /* Hammer time :-) */ + try_to_reset_cmd_device(cmd); if (i->dft->lldd_clear_nexus_port) { struct asd_sas_port *port = task->dev->port; SAS_DPRINTK("clearing nexus for port:%d\n", @@ -600,8 +601,6 @@ Again: SAS_DPRINTK("clear nexus port:%d " "succeeded\n", port->id); sas_eh_finish_cmd(cmd); - if (need_reset) - try_to_reset_cmd_device(shost, cmd); sas_scsi_clear_queue_port(work_q, port); goto Again; @@ -614,8 +613,6 @@ Again: SAS_DPRINTK("clear nexus ha " "succeeded\n"); sas_eh_finish_cmd(cmd); - if (need_reset) - try_to_reset_cmd_device(shost, cmd); goto clear_q; } } @@ -629,8 +626,6 @@ Again: cmd->device->lun); sas_eh_finish_cmd(cmd); - if (need_reset) - try_to_reset_cmd_device(shost, cmd); goto clear_q; } } -- GitLab From e2396f1e4ecd438a15fa653a028b93e95013caa3 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sat, 23 Feb 2008 23:44:19 -0600 Subject: [PATCH 099/923] [SCSI] aic94xx: fix TMF ascb handling to prevent sequencer panic This is a particularly nasty bug. The problem is that if any internal ascb times out, currently we free it even though it's pending at the sequencer. This results in the sequencer getting terminally confused and the error message: BUG:sequencer:dl:no ascb Being returned when it comes back. The way to fix this is to manage freeing the ascb from the tasklet completion routine, so that we only free it when the sequencer actually returns it. The code is also altered to use on stack completions and transfer variables. Signed-off-by: James Bottomley --- drivers/scsi/aic94xx/aic94xx_hwi.h | 3 +- drivers/scsi/aic94xx/aic94xx_task.c | 4 +- drivers/scsi/aic94xx/aic94xx_tmf.c | 246 +++++++++++++++------------- 3 files changed, 139 insertions(+), 114 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.h b/drivers/scsi/aic94xx/aic94xx_hwi.h index 150f6706d23..abc757559c1 100644 --- a/drivers/scsi/aic94xx/aic94xx_hwi.h +++ b/drivers/scsi/aic94xx/aic94xx_hwi.h @@ -140,7 +140,7 @@ struct asd_ascb { /* internally generated command */ struct timer_list timer; - struct completion completion; + struct completion *completion; u8 tag_valid:1; __be16 tag; /* error recovery only */ @@ -294,7 +294,6 @@ static inline void asd_init_ascb(struct asd_ha_struct *asd_ha, ascb->timer.function = NULL; init_timer(&ascb->timer); ascb->tc_index = -1; - init_completion(&ascb->completion); } /* Must be called with the tc_index_lock held! diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c index 965d4bb999d..008df9ab92a 100644 --- a/drivers/scsi/aic94xx/aic94xx_task.c +++ b/drivers/scsi/aic94xx/aic94xx_task.c @@ -343,11 +343,13 @@ Again: task->task_state_flags &= ~SAS_TASK_AT_INITIATOR; task->task_state_flags |= SAS_TASK_STATE_DONE; if (unlikely((task->task_state_flags & SAS_TASK_STATE_ABORTED))) { + struct completion *completion = ascb->completion; spin_unlock_irqrestore(&task->task_state_lock, flags); ASD_DPRINTK("task 0x%p done with opcode 0x%x resp 0x%x " "stat 0x%x but aborted by upper layer!\n", task, opcode, ts->resp, ts->stat); - complete(&ascb->completion); + if (completion) + complete(completion); } else { spin_unlock_irqrestore(&task->task_state_lock, flags); task->lldd_task = NULL; diff --git a/drivers/scsi/aic94xx/aic94xx_tmf.c b/drivers/scsi/aic94xx/aic94xx_tmf.c index d684c7432e6..b9ac8f703a1 100644 --- a/drivers/scsi/aic94xx/aic94xx_tmf.c +++ b/drivers/scsi/aic94xx/aic94xx_tmf.c @@ -53,50 +53,64 @@ static int asd_enqueue_internal(struct asd_ascb *ascb, return res; } -static inline void asd_timedout_common(unsigned long data) -{ - struct asd_ascb *ascb = (void *) data; - struct asd_seq_data *seq = &ascb->ha->seq; - unsigned long flags; +/* ---------- CLEAR NEXUS ---------- */ - spin_lock_irqsave(&seq->pend_q_lock, flags); - seq->pending--; - list_del_init(&ascb->list); - spin_unlock_irqrestore(&seq->pend_q_lock, flags); -} +struct tasklet_completion_status { + int dl_opcode; + int tmf_state; + u8 tag_valid:1; + __be16 tag; +}; + +#define DECLARE_TCS(tcs) \ + struct tasklet_completion_status tcs = { \ + .dl_opcode = 0, \ + .tmf_state = 0, \ + .tag_valid = 0, \ + .tag = 0, \ + } -/* ---------- CLEAR NEXUS ---------- */ static void asd_clear_nexus_tasklet_complete(struct asd_ascb *ascb, struct done_list_struct *dl) { + struct tasklet_completion_status *tcs = ascb->uldd_task; ASD_DPRINTK("%s: here\n", __FUNCTION__); if (!del_timer(&ascb->timer)) { ASD_DPRINTK("%s: couldn't delete timer\n", __FUNCTION__); return; } ASD_DPRINTK("%s: opcode: 0x%x\n", __FUNCTION__, dl->opcode); - ascb->uldd_task = (void *) (unsigned long) dl->opcode; - complete(&ascb->completion); + tcs->dl_opcode = dl->opcode; + complete(ascb->completion); + asd_ascb_free(ascb); } static void asd_clear_nexus_timedout(unsigned long data) { - struct asd_ascb *ascb = (void *) data; + struct asd_ascb *ascb = (void *)data; + struct tasklet_completion_status *tcs = ascb->uldd_task; ASD_DPRINTK("%s: here\n", __FUNCTION__); - asd_timedout_common(data); - ascb->uldd_task = (void *) TMF_RESP_FUNC_FAILED; - complete(&ascb->completion); + tcs->dl_opcode = TMF_RESP_FUNC_FAILED; + complete(ascb->completion); } #define CLEAR_NEXUS_PRE \ + struct asd_ascb *ascb; \ + struct scb *scb; \ + int res; \ + DECLARE_COMPLETION_ONSTACK(completion); \ + DECLARE_TCS(tcs); \ + \ ASD_DPRINTK("%s: PRE\n", __FUNCTION__); \ res = 1; \ ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL); \ if (!ascb) \ return -ENOMEM; \ \ + ascb->completion = &completion; \ + ascb->uldd_task = &tcs; \ scb = ascb->scb; \ scb->header.opcode = CLEAR_NEXUS @@ -107,10 +121,11 @@ static void asd_clear_nexus_timedout(unsigned long data) if (res) \ goto out_err; \ ASD_DPRINTK("%s: clear nexus posted, waiting...\n", __FUNCTION__); \ - wait_for_completion(&ascb->completion); \ - res = (int) (unsigned long) ascb->uldd_task; \ + wait_for_completion(&completion); \ + res = tcs.dl_opcode; \ if (res == TC_NO_ERROR) \ res = TMF_RESP_FUNC_COMPLETE; \ + return res; \ out_err: \ asd_ascb_free(ascb); \ return res @@ -118,9 +133,6 @@ out_err: \ int asd_clear_nexus_ha(struct sas_ha_struct *sas_ha) { struct asd_ha_struct *asd_ha = sas_ha->lldd_ha; - struct asd_ascb *ascb; - struct scb *scb; - int res; CLEAR_NEXUS_PRE; scb->clear_nexus.nexus = NEXUS_ADAPTER; @@ -130,9 +142,6 @@ int asd_clear_nexus_ha(struct sas_ha_struct *sas_ha) int asd_clear_nexus_port(struct asd_sas_port *port) { struct asd_ha_struct *asd_ha = port->ha->lldd_ha; - struct asd_ascb *ascb; - struct scb *scb; - int res; CLEAR_NEXUS_PRE; scb->clear_nexus.nexus = NEXUS_PORT; @@ -150,9 +159,6 @@ static int asd_clear_nexus_I_T(struct domain_device *dev, enum clear_nexus_phase phase) { struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha; - struct asd_ascb *ascb; - struct scb *scb; - int res; CLEAR_NEXUS_PRE; scb->clear_nexus.nexus = NEXUS_I_T; @@ -210,9 +216,6 @@ int asd_I_T_nexus_reset(struct domain_device *dev) static int asd_clear_nexus_I_T_L(struct domain_device *dev, u8 *lun) { struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha; - struct asd_ascb *ascb; - struct scb *scb; - int res; CLEAR_NEXUS_PRE; scb->clear_nexus.nexus = NEXUS_I_T_L; @@ -227,9 +230,6 @@ static int asd_clear_nexus_tag(struct sas_task *task) { struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha; struct asd_ascb *tascb = task->lldd_task; - struct asd_ascb *ascb; - struct scb *scb; - int res; CLEAR_NEXUS_PRE; scb->clear_nexus.nexus = NEXUS_TAG; @@ -245,9 +245,6 @@ static int asd_clear_nexus_index(struct sas_task *task) { struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha; struct asd_ascb *tascb = task->lldd_task; - struct asd_ascb *ascb; - struct scb *scb; - int res; CLEAR_NEXUS_PRE; scb->clear_nexus.nexus = NEXUS_TRANS_CX; @@ -263,11 +260,11 @@ static int asd_clear_nexus_index(struct sas_task *task) static void asd_tmf_timedout(unsigned long data) { struct asd_ascb *ascb = (void *) data; + struct tasklet_completion_status *tcs = ascb->uldd_task; ASD_DPRINTK("tmf timed out\n"); - asd_timedout_common(data); - ascb->uldd_task = (void *) TMF_RESP_FUNC_FAILED; - complete(&ascb->completion); + tcs->tmf_state = TMF_RESP_FUNC_FAILED; + complete(ascb->completion); } static int asd_get_tmf_resp_tasklet(struct asd_ascb *ascb, @@ -319,18 +316,24 @@ static int asd_get_tmf_resp_tasklet(struct asd_ascb *ascb, static void asd_tmf_tasklet_complete(struct asd_ascb *ascb, struct done_list_struct *dl) { + struct tasklet_completion_status *tcs; + if (!del_timer(&ascb->timer)) return; + tcs = ascb->uldd_task; ASD_DPRINTK("tmf tasklet complete\n"); - if (dl->opcode == TC_SSP_RESP) - ascb->uldd_task = (void *) (unsigned long) - asd_get_tmf_resp_tasklet(ascb, dl); - else - ascb->uldd_task = (void *) 0xFF00 + (unsigned long) dl->opcode; + tcs->dl_opcode = dl->opcode; - complete(&ascb->completion); + if (dl->opcode == TC_SSP_RESP) { + tcs->tmf_state = asd_get_tmf_resp_tasklet(ascb, dl); + tcs->tag_valid = ascb->tag_valid; + tcs->tag = ascb->tag; + } + + complete(ascb->completion); + asd_ascb_free(ascb); } static inline int asd_clear_nexus(struct sas_task *task) @@ -338,15 +341,19 @@ static inline int asd_clear_nexus(struct sas_task *task) int res = TMF_RESP_FUNC_FAILED; int leftover; struct asd_ascb *tascb = task->lldd_task; + DECLARE_COMPLETION_ONSTACK(completion); unsigned long flags; + tascb->completion = &completion; + ASD_DPRINTK("task not done, clearing nexus\n"); if (tascb->tag_valid) res = asd_clear_nexus_tag(task); else res = asd_clear_nexus_index(task); - leftover = wait_for_completion_timeout(&tascb->completion, + leftover = wait_for_completion_timeout(&completion, AIC94XX_SCB_TIMEOUT); + tascb->completion = NULL; ASD_DPRINTK("came back from clear nexus\n"); spin_lock_irqsave(&task->task_state_lock, flags); if (leftover < 1) @@ -400,6 +407,11 @@ int asd_abort_task(struct sas_task *task) struct asd_ascb *ascb = NULL; struct scb *scb; int leftover; + DECLARE_TCS(tcs); + DECLARE_COMPLETION_ONSTACK(completion); + DECLARE_COMPLETION_ONSTACK(tascb_completion); + + tascb->completion = &tascb_completion; spin_lock_irqsave(&task->task_state_lock, flags); if (task->task_state_flags & SAS_TASK_STATE_DONE) { @@ -413,8 +425,10 @@ int asd_abort_task(struct sas_task *task) ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL); if (!ascb) return -ENOMEM; - scb = ascb->scb; + ascb->uldd_task = &tcs; + ascb->completion = &completion; + scb = ascb->scb; scb->header.opcode = SCB_ABORT_TASK; switch (task->task_proto) { @@ -456,13 +470,12 @@ int asd_abort_task(struct sas_task *task) res = asd_enqueue_internal(ascb, asd_tmf_tasklet_complete, asd_tmf_timedout); if (res) - goto out; - wait_for_completion(&ascb->completion); + goto out_free; + wait_for_completion(&completion); ASD_DPRINTK("tmf came back\n"); - res = (int) (unsigned long) ascb->uldd_task; - tascb->tag = ascb->tag; - tascb->tag_valid = ascb->tag_valid; + tascb->tag = tcs.tag; + tascb->tag_valid = tcs.tag_valid; spin_lock_irqsave(&task->task_state_lock, flags); if (task->task_state_flags & SAS_TASK_STATE_DONE) { @@ -473,63 +486,68 @@ int asd_abort_task(struct sas_task *task) } spin_unlock_irqrestore(&task->task_state_lock, flags); - switch (res) { - /* The task to be aborted has been sent to the device. - * We got a Response IU for the ABORT TASK TMF. */ - case TC_NO_ERROR + 0xFF00: - case TMF_RESP_FUNC_COMPLETE: - case TMF_RESP_FUNC_FAILED: - res = asd_clear_nexus(task); - break; - case TMF_RESP_INVALID_FRAME: - case TMF_RESP_OVERLAPPED_TAG: - case TMF_RESP_FUNC_ESUPP: - case TMF_RESP_NO_LUN: - goto out_done; break; - } - /* In the following we assume that the managing layer - * will _never_ make a mistake, when issuing ABORT TASK. - */ - switch (res) { - default: - res = asd_clear_nexus(task); - /* fallthrough */ - case TC_NO_ERROR + 0xFF00: - case TMF_RESP_FUNC_COMPLETE: - break; - /* The task hasn't been sent to the device xor we never got - * a (sane) Response IU for the ABORT TASK TMF. - */ - case TF_NAK_RECV + 0xFF00: - res = TMF_RESP_INVALID_FRAME; - break; - case TF_TMF_TASK_DONE + 0xFF00: /* done but not reported yet */ + if (tcs.dl_opcode == TC_SSP_RESP) { + /* The task to be aborted has been sent to the device. + * We got a Response IU for the ABORT TASK TMF. */ + if (tcs.tmf_state == TMF_RESP_FUNC_COMPLETE) + res = asd_clear_nexus(task); + else + res = tcs.tmf_state; + } else if (tcs.dl_opcode == TC_NO_ERROR && + tcs.tmf_state == TMF_RESP_FUNC_FAILED) { + /* timeout */ res = TMF_RESP_FUNC_FAILED; - leftover = wait_for_completion_timeout(&tascb->completion, - AIC94XX_SCB_TIMEOUT); - spin_lock_irqsave(&task->task_state_lock, flags); - if (leftover < 1) + } else { + /* In the following we assume that the managing layer + * will _never_ make a mistake, when issuing ABORT + * TASK. + */ + switch (tcs.dl_opcode) { + default: + res = asd_clear_nexus(task); + /* fallthrough */ + case TC_NO_ERROR: + break; + /* The task hasn't been sent to the device xor + * we never got a (sane) Response IU for the + * ABORT TASK TMF. + */ + case TF_NAK_RECV: + res = TMF_RESP_INVALID_FRAME; + break; + case TF_TMF_TASK_DONE: /* done but not reported yet */ res = TMF_RESP_FUNC_FAILED; - if (task->task_state_flags & SAS_TASK_STATE_DONE) + leftover = + wait_for_completion_timeout(&tascb_completion, + AIC94XX_SCB_TIMEOUT); + spin_lock_irqsave(&task->task_state_lock, flags); + if (leftover < 1) + res = TMF_RESP_FUNC_FAILED; + if (task->task_state_flags & SAS_TASK_STATE_DONE) + res = TMF_RESP_FUNC_COMPLETE; + spin_unlock_irqrestore(&task->task_state_lock, flags); + break; + case TF_TMF_NO_TAG: + case TF_TMF_TAG_FREE: /* the tag is in the free list */ + case TF_TMF_NO_CONN_HANDLE: /* no such device */ res = TMF_RESP_FUNC_COMPLETE; - spin_unlock_irqrestore(&task->task_state_lock, flags); - goto out_done; - case TF_TMF_NO_TAG + 0xFF00: - case TF_TMF_TAG_FREE + 0xFF00: /* the tag is in the free list */ - case TF_TMF_NO_CONN_HANDLE + 0xFF00: /* no such device */ - res = TMF_RESP_FUNC_COMPLETE; - goto out_done; - case TF_TMF_NO_CTX + 0xFF00: /* not in seq, or proto != SSP */ - res = TMF_RESP_FUNC_ESUPP; - goto out; + break; + case TF_TMF_NO_CTX: /* not in seq, or proto != SSP */ + res = TMF_RESP_FUNC_ESUPP; + break; + } } -out_done: + out_done: + tascb->completion = NULL; if (res == TMF_RESP_FUNC_COMPLETE) { task->lldd_task = NULL; mb(); asd_ascb_free(tascb); } -out: + ASD_DPRINTK("task 0x%p aborted, res: 0x%x\n", task, res); + return res; + + out_free: asd_ascb_free(ascb); ASD_DPRINTK("task 0x%p aborted, res: 0x%x\n", task, res); return res; @@ -557,6 +575,8 @@ static int asd_initiate_ssp_tmf(struct domain_device *dev, u8 *lun, struct asd_ascb *ascb; int res = 1; struct scb *scb; + DECLARE_COMPLETION_ONSTACK(completion); + DECLARE_TCS(tcs); if (!(dev->tproto & SAS_PROTOCOL_SSP)) return TMF_RESP_FUNC_ESUPP; @@ -564,6 +584,9 @@ static int asd_initiate_ssp_tmf(struct domain_device *dev, u8 *lun, ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL); if (!ascb) return -ENOMEM; + + ascb->completion = &completion; + ascb->uldd_task = &tcs; scb = ascb->scb; if (tmf == TMF_QUERY_TASK) @@ -596,31 +619,32 @@ static int asd_initiate_ssp_tmf(struct domain_device *dev, u8 *lun, asd_tmf_timedout); if (res) goto out_err; - wait_for_completion(&ascb->completion); - res = (int) (unsigned long) ascb->uldd_task; + wait_for_completion(&completion); - switch (res) { - case TC_NO_ERROR + 0xFF00: + switch (tcs.dl_opcode) { + case TC_NO_ERROR: res = TMF_RESP_FUNC_COMPLETE; break; - case TF_NAK_RECV + 0xFF00: + case TF_NAK_RECV: res = TMF_RESP_INVALID_FRAME; break; - case TF_TMF_TASK_DONE + 0xFF00: + case TF_TMF_TASK_DONE: res = TMF_RESP_FUNC_FAILED; break; - case TF_TMF_NO_TAG + 0xFF00: - case TF_TMF_TAG_FREE + 0xFF00: /* the tag is in the free list */ - case TF_TMF_NO_CONN_HANDLE + 0xFF00: /* no such device */ + case TF_TMF_NO_TAG: + case TF_TMF_TAG_FREE: /* the tag is in the free list */ + case TF_TMF_NO_CONN_HANDLE: /* no such device */ res = TMF_RESP_FUNC_COMPLETE; break; - case TF_TMF_NO_CTX + 0xFF00: /* not in seq, or proto != SSP */ + case TF_TMF_NO_CTX: /* not in seq, or proto != SSP */ res = TMF_RESP_FUNC_ESUPP; break; default: /* Allow TMF response codes to propagate upwards */ + res = tcs.dl_opcode; break; } + return res; out_err: asd_ascb_free(ascb); return res; -- GitLab From b80a71860d0cfaaa9aa0722238cf3b69bb859eee Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 24 Feb 2008 18:45:09 -0800 Subject: [PATCH 100/923] [SPARC]: Fix build in arch/sparc/kernel/led.c CC [M] arch/sparc/kernel/led.o arch/sparc/kernel/led.c: In function 'led_blink': arch/sparc/kernel/led.c:35: error: invalid use of undefined type 'struct timer_list' arch/sparc/kernel/led.c:35: error: 'jiffies' undeclared (first use in this function) arch/sparc/kernel/led.c:35: error: (Each undeclared identifier is reported only once arch/sparc/kernel/led.c:35: error: for each function it appears in.) arch/sparc/kernel/led.c:36: error: 'avenrun' undeclared (first use in this function) arch/sparc/kernel/led.c:36: error: 'FSHIFT' undeclared (first use in this function) arch/sparc/kernel/led.c:36: error: 'HZ' undeclared (first use in this function) arch/sparc/kernel/led.c:37: error: invalid use of undefined type 'struct timer_list' arch/sparc/kernel/led.c:39: error: invalid use of undefined type 'struct timer_list' arch/sparc/kernel/led.c:40: error: invalid use of undefined type 'struct timer_list' arch/sparc/kernel/led.c:42: error: implicit declaration of function 'add_timer' arch/sparc/kernel/led.c: In function 'led_write_proc': arch/sparc/kernel/led.c:70: error: implicit declaration of function 'copy_from_user' arch/sparc/kernel/led.c:84: error: implicit declaration of function 'del_timer_sync' arch/sparc/kernel/led.c: In function 'led_init': arch/sparc/kernel/led.c:109: error: implicit declaration of function 'init_timer' arch/sparc/kernel/led.c:110: error: invalid use of undefined type 'struct timer_list' make[1]: *** [arch/sparc/kernel/led.o] Error 1 Based upon original patch by Robert Reif. Signed-off-by: David S. Miller --- arch/sparc/kernel/led.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c index 313d1620ae8..59e9344e7a0 100644 --- a/arch/sparc/kernel/led.c +++ b/arch/sparc/kernel/led.c @@ -3,6 +3,9 @@ #include #include #include +#include +#include +#include #include -- GitLab From 7769bd1c65e3dc22391d60420fea0c859e39b716 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 24 Feb 2008 19:47:51 -0800 Subject: [PATCH 101/923] [SPARC64]: Fix section mismatchs from dr_cpu_data Fix following warnings: WARNING: vmlinux.o(.text+0x4b258): Section mismatch in reference from the function dr_cpu_data() to the function .devinit.text:mdesc_fill_in_cpu_data() WARNING: vmlinux.o(.text+0x4b290): Section mismatch in reference from the function dr_cpu_data() to the function .cpuinit.text:cpu_up() mdesc_fill_in_cpu_data() is only used during early init and for cpu hotplug so the __cpuinit annotation is the correct choice. We have the call chain: dr_cpu_data() => dr_cpu_configure() => mdesc_fill_in_cpu_data() dr_cpu_data() is used only during early init and for cpu hotplug. So annotating them all __cpuinit solves the section mismatch and should be correct. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- arch/sparc64/kernel/ds.c | 14 +++++++------- arch/sparc64/kernel/mdesc.c | 2 +- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c index eeb5a2fc788..bd76482077b 100644 --- a/arch/sparc64/kernel/ds.c +++ b/arch/sparc64/kernel/ds.c @@ -525,10 +525,10 @@ static void dr_cpu_mark(struct ds_data *resp, int cpu, int ncpus, } } -static int dr_cpu_configure(struct ds_info *dp, - struct ds_cap_state *cp, - u64 req_num, - cpumask_t *mask) +static int __cpuinit dr_cpu_configure(struct ds_info *dp, + struct ds_cap_state *cp, + u64 req_num, + cpumask_t *mask) { struct ds_data *resp; int resp_len, ncpus, cpu; @@ -623,9 +623,9 @@ static int dr_cpu_unconfigure(struct ds_info *dp, return 0; } -static void dr_cpu_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len) +static void __cpuinit dr_cpu_data(struct ds_info *dp, + struct ds_cap_state *cp, + void *buf, int len) { struct ds_data *data = buf; struct dr_cpu_tag *tag = (struct dr_cpu_tag *) (data + 1); diff --git a/arch/sparc64/kernel/mdesc.c b/arch/sparc64/kernel/mdesc.c index 856659bb131..91008358956 100644 --- a/arch/sparc64/kernel/mdesc.c +++ b/arch/sparc64/kernel/mdesc.c @@ -758,7 +758,7 @@ static void __devinit get_mondo_data(struct mdesc_handle *hp, u64 mp, get_one_mondo_bits(val, &tb->nonresum_qmask, 2); } -void __devinit mdesc_fill_in_cpu_data(cpumask_t mask) +void __cpuinit mdesc_fill_in_cpu_data(cpumask_t mask) { struct mdesc_handle *hp = mdesc_grab(); u64 mp; -- GitLab From 896aef430e5afb56b5f7b1d959226b8a6a08108a Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 24 Feb 2008 19:49:52 -0800 Subject: [PATCH 102/923] [SPARC64]: Fix section mismatch from kernel_map_range Fix following warnings: WARNING: vmlinux.o(.text+0x4f980): Section mismatch in reference from the function kernel_map_range() to the function .init.text:__alloc_bootmem() WARNING: vmlinux.o(.text+0x4f9cc): Section mismatch in reference from the function kernel_map_range() to the function .init.text:__alloc_bootmem() alloc_bootmem() is only used during early init and for any subsequent call to kernel_map_range() the program logic avoid the call. So annotate kernel_map_range() with __ref to tell modpost to ignore the reference to a __init function. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- arch/sparc64/mm/init.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 9e6bca266d8..b5c30416fda 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -1010,7 +1010,8 @@ static struct linux_prom64_registers pall[MAX_BANKS] __initdata; static int pall_ents __initdata; #ifdef CONFIG_DEBUG_PAGEALLOC -static unsigned long kernel_map_range(unsigned long pstart, unsigned long pend, pgprot_t prot) +static unsigned long __ref kernel_map_range(unsigned long pstart, + unsigned long pend, pgprot_t prot) { unsigned long vstart = PAGE_OFFSET + pstart; unsigned long vend = PAGE_OFFSET + pend; -- GitLab From 0711d857605ba598cd6d4254462d1419b233321b Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Mon, 25 Feb 2008 15:16:50 +0800 Subject: [PATCH 103/923] Blackfin Serial Driver: Fix bug - Increase buffer tail immediately before starting tx dma. http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=2920 Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 69ac7007682..2fb3081c502 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -64,15 +64,20 @@ static void bfin_serial_mctrl_check(struct bfin_serial_port *uart); static void bfin_serial_stop_tx(struct uart_port *port) { struct bfin_serial_port *uart = (struct bfin_serial_port *)port; + struct circ_buf *xmit = &uart->port.info->xmit; #if !defined(CONFIG_BF54x) && !defined(CONFIG_SERIAL_BFIN_DMA) unsigned short ier; #endif while (!(UART_GET_LSR(uart) & TEMT)) - continue; + cpu_relax(); #ifdef CONFIG_SERIAL_BFIN_DMA disable_dma(uart->tx_dma_channel); + xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1); + uart->port.icount.tx += uart->tx_count; + uart->tx_count = 0; + uart->tx_done = 1; #else #ifdef CONFIG_BF54x /* Clear TFI bit */ @@ -94,7 +99,8 @@ static void bfin_serial_start_tx(struct uart_port *port) struct bfin_serial_port *uart = (struct bfin_serial_port *)port; #ifdef CONFIG_SERIAL_BFIN_DMA - bfin_serial_dma_tx_chars(uart); + if (uart->tx_done) + bfin_serial_dma_tx_chars(uart); #else #ifdef CONFIG_BF54x UART_SET_IER(uart, ETBEI); @@ -389,12 +395,10 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) unsigned short ier; int flags = 0; - if (!uart->tx_done) - return; uart->tx_done = 0; if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) { - bfin_serial_stop_tx(&uart->port); + uart->tx_count = 0; uart->tx_done = 1; return; } @@ -428,9 +432,6 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) set_dma_x_modify(uart->tx_dma_channel, 1); enable_dma(uart->tx_dma_channel); - xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1); - uart->port.icount.tx += uart->tx_count; - #ifdef CONFIG_BF54x UART_SET_IER(uart, ETBEI); #else @@ -515,8 +516,8 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id) spin_lock(&uart->port.lock); if (!(get_dma_curr_irqstat(uart->tx_dma_channel)&DMA_RUN)) { - clear_dma_irqstat(uart->tx_dma_channel); disable_dma(uart->tx_dma_channel); + clear_dma_irqstat(uart->tx_dma_channel); #ifdef CONFIG_BF54x UART_CLEAR_IER(uart, ETBEI); #else @@ -527,7 +528,8 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id) if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(&uart->port); - uart->tx_done = 1; + xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1); + uart->port.icount.tx += uart->tx_count; bfin_serial_dma_tx_chars(uart); } @@ -542,12 +544,14 @@ static irqreturn_t bfin_serial_dma_rx_int(int irq, void *dev_id) unsigned short irqstat; uart->rx_dma_nrows++; - if (uart->rx_dma_nrows == DMA_RX_YCOUNT) { + uart->rx_dma_buf.tail = DMA_RX_XCOUNT * uart->rx_dma_nrows; + bfin_serial_dma_rx_chars(uart); + if (uart->rx_dma_nrows >= DMA_RX_YCOUNT) { uart->rx_dma_nrows = 0; - uart->rx_dma_buf.tail = DMA_RX_XCOUNT*DMA_RX_YCOUNT; - bfin_serial_dma_rx_chars(uart); - uart->rx_dma_buf.head = uart->rx_dma_buf.tail = 0; + uart->rx_dma_buf.tail = 0; } + uart->rx_dma_buf.head = uart->rx_dma_buf.tail; + spin_lock(&uart->port.lock); irqstat = get_dma_curr_irqstat(uart->rx_dma_channel); clear_dma_irqstat(uart->rx_dma_channel); -- GitLab From 56f5de8fe7c127f6fb94b7a061d53090fd4a1c49 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Mon, 25 Feb 2008 15:19:09 +0800 Subject: [PATCH 104/923] Blackfin Serial Driver: Fix bug - update tx dma buffer tail before wake up processes. Also make rx dma buffer work as a loop. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 51 ++++++++++++++++++++++----------------- 1 file changed, 29 insertions(+), 22 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 2fb3081c502..2a411748579 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -415,7 +415,6 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) */ bfin_serial_mctrl_check(uart); - spin_lock_irqsave(&uart->port.lock, flags); uart->tx_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE); if (uart->tx_count > (UART_XMIT_SIZE - xmit->tail)) uart->tx_count = UART_XMIT_SIZE - xmit->tail; @@ -439,7 +438,6 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) ier |= ETBEI; UART_PUT_IER(uart, ier); #endif - spin_unlock_irqrestore(&uart->port.lock, flags); } static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) @@ -450,7 +448,9 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) status = UART_GET_LSR(uart); UART_CLEAR_LSR(uart); - uart->port.icount.rx += CIRC_CNT(uart->rx_dma_buf.head, uart->rx_dma_buf.tail, UART_XMIT_SIZE);; + uart->port.icount.rx += + CIRC_CNT(uart->rx_dma_buf.head, uart->rx_dma_buf.tail, + UART_XMIT_SIZE); if (status & BI) { uart->port.icount.brk++; @@ -476,10 +476,12 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) else flg = TTY_NORMAL; - for (i = uart->rx_dma_buf.head; i < uart->rx_dma_buf.tail; i++) { - if (uart_handle_sysrq_char(&uart->port, uart->rx_dma_buf.buf[i])) - goto dma_ignore_char; - uart_insert_char(&uart->port, status, OE, uart->rx_dma_buf.buf[i], flg); + for (i = uart->rx_dma_buf.tail; i != uart->rx_dma_buf.head; i++) { + if (i >= UART_XMIT_SIZE) + i = 0; + if (!uart_handle_sysrq_char(&uart->port, uart->rx_dma_buf.buf[i])) + uart_insert_char(&uart->port, status, OE, + uart->rx_dma_buf.buf[i], flg); } dma_ignore_char: @@ -492,16 +494,20 @@ void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart) int flags = 0; spin_lock_irqsave(&uart->port.lock, flags); - x_pos = DMA_RX_XCOUNT - get_dma_curr_xcount(uart->rx_dma_channel); + uart->rx_dma_nrows = get_dma_curr_ycount(uart->rx_dma_channel); + x_pos = get_dma_curr_xcount(uart->rx_dma_channel); + uart->rx_dma_nrows = DMA_RX_YCOUNT - uart->rx_dma_nrows; + if (uart->rx_dma_nrows == DMA_RX_YCOUNT) + uart->rx_dma_nrows = 0; + x_pos = DMA_RX_XCOUNT - x_pos; if (x_pos == DMA_RX_XCOUNT) x_pos = 0; pos = uart->rx_dma_nrows * DMA_RX_XCOUNT + x_pos; - - if (pos>uart->rx_dma_buf.tail) { - uart->rx_dma_buf.tail = pos; + if (pos != uart->rx_dma_buf.tail) { + uart->rx_dma_buf.head = pos; bfin_serial_dma_rx_chars(uart); - uart->rx_dma_buf.head = uart->rx_dma_buf.tail; + uart->rx_dma_buf.tail = uart->rx_dma_buf.head; } spin_unlock_irqrestore(&uart->port.lock, flags); uart->rx_dma_timer.expires = jiffies + DMA_RX_FLUSH_JIFFIES; @@ -525,12 +531,12 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id) ier &= ~ETBEI; UART_PUT_IER(uart, ier); #endif - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) - uart_write_wakeup(&uart->port); - xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1); uart->port.icount.tx += uart->tx_count; + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + uart_write_wakeup(&uart->port); + bfin_serial_dma_tx_chars(uart); } @@ -542,15 +548,16 @@ static irqreturn_t bfin_serial_dma_rx_int(int irq, void *dev_id) { struct bfin_serial_port *uart = dev_id; unsigned short irqstat; + int pos; - uart->rx_dma_nrows++; - uart->rx_dma_buf.tail = DMA_RX_XCOUNT * uart->rx_dma_nrows; - bfin_serial_dma_rx_chars(uart); - if (uart->rx_dma_nrows >= DMA_RX_YCOUNT) { - uart->rx_dma_nrows = 0; - uart->rx_dma_buf.tail = 0; + uart->rx_dma_nrows = DMA_RX_YCOUNT - + get_dma_curr_ycount(uart->rx_dma_channel); + pos = DMA_RX_XCOUNT * uart->rx_dma_nrows; + if (pos != uart->rx_dma_buf.tail) { + uart->rx_dma_buf.head = pos; + bfin_serial_dma_rx_chars(uart); + uart->rx_dma_buf.tail = uart->rx_dma_buf.head; } - uart->rx_dma_buf.head = uart->rx_dma_buf.tail; spin_lock(&uart->port.lock); irqstat = get_dma_curr_irqstat(uart->rx_dma_channel); -- GitLab From cc645a020510cf68332a71394a32c1eacb92c6ed Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 14 Feb 2008 15:09:27 +0900 Subject: [PATCH 105/923] sh: Rename SH-3 CCR3 reg to avoid synclink_cs clash. drivers/char/pcmcia/synclink_cs.c:284:1: warning: "CCR3" redefined In file included from include/asm/cache.h:13, from include/asm/processor_32.h:15, from include/asm/processor.h:60, from include/linux/prefetch.h:14, from include/linux/list.h:8, from include/linux/module.h:9, from drivers/char/pcmcia/synclink_cs.c:38: include/asm/cpu/cache.h:38:1: warning: this is the location of the previous definition Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh3/probe.c | 4 ++-- include/asm-sh/cpu-sh3/cache.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/sh/kernel/cpu/sh3/probe.c b/arch/sh/kernel/cpu/sh3/probe.c index fcc80bb7bee..10f2a760c5e 100644 --- a/arch/sh/kernel/cpu/sh3/probe.c +++ b/arch/sh/kernel/cpu/sh3/probe.c @@ -94,9 +94,9 @@ int __uses_jump_to_uncached detect_cpu_and_cache_system(void) boot_cpu_data.dcache.way_incr = (1 << 13); boot_cpu_data.dcache.entry_mask = 0x1ff0; boot_cpu_data.dcache.sets = 512; - ctrl_outl(CCR_CACHE_32KB, CCR3); + ctrl_outl(CCR_CACHE_32KB, CCR3_REG); #else - ctrl_outl(CCR_CACHE_16KB, CCR3); + ctrl_outl(CCR_CACHE_16KB, CCR3_REG); #endif #endif } diff --git a/include/asm-sh/cpu-sh3/cache.h b/include/asm-sh/cpu-sh3/cache.h index 56bd838b7db..bee2d81c56b 100644 --- a/include/asm-sh/cpu-sh3/cache.h +++ b/include/asm-sh/cpu-sh3/cache.h @@ -35,7 +35,7 @@ defined(CONFIG_CPU_SUBTYPE_SH7710) || \ defined(CONFIG_CPU_SUBTYPE_SH7720) || \ defined(CONFIG_CPU_SUBTYPE_SH7721) -#define CCR3 0xa40000b4 +#define CCR3_REG 0xa40000b4 #define CCR_CACHE_16KB 0x00010000 #define CCR_CACHE_32KB 0x00020000 #endif -- GitLab From 8ef97dd7a8721882732ea8041fc07c80be3882ba Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 14 Feb 2008 15:30:54 +0900 Subject: [PATCH 106/923] sh: SH5-103 needs to select CPU_SH5. Without this, it's possible to have CONFIG_SUPERH32=y set on SH5-103 parts, which leads to much build badness. Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index b3400b5ad5c..783cfbbf87c 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -330,6 +330,7 @@ config CPU_SUBTYPE_SH5_101 config CPU_SUBTYPE_SH5_103 bool "Support SH5-103 processor" + select CPU_SH5 endchoice -- GitLab From 6892b75e60557a48c01d57ba320419a9e2ce9846 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 13 Feb 2008 14:02:36 +0100 Subject: [PATCH 107/923] sched: make early bootup sched_clock() use safer do not call sched_clock() too early. Not only might rq->idle not be set up - but pure per-cpu data might not be accessible either. this solves an ia64 early bootup hang with CONFIG_PRINTK_TIME=y. Tested-by: Tony Luck Acked-by: Tony Luck Acked-by: David S. Miller Signed-off-by: Ingo Molnar --- kernel/sched.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index b387a8de26a..7286ccb0108 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -668,6 +668,8 @@ const_debug unsigned int sysctl_sched_nr_migrate = 32; */ unsigned int sysctl_sched_rt_period = 1000000; +static __read_mostly int scheduler_running; + /* * part of the period that we allow rt tasks to run in us. * default: 0.95s @@ -689,14 +691,16 @@ unsigned long long cpu_clock(int cpu) unsigned long flags; struct rq *rq; - local_irq_save(flags); - rq = cpu_rq(cpu); /* * Only call sched_clock() if the scheduler has already been * initialized (some code might call cpu_clock() very early): */ - if (rq->idle) - update_rq_clock(rq); + if (unlikely(!scheduler_running)) + return 0; + + local_irq_save(flags); + rq = cpu_rq(cpu); + update_rq_clock(rq); now = rq->clock; local_irq_restore(flags); @@ -7284,6 +7288,8 @@ void __init sched_init(void) * During early bootup we pretend to be a normal task: */ current->sched_class = &fair_sched_class; + + scheduler_running = 1; } #ifdef CONFIG_DEBUG_SPINLOCK_SLEEP -- GitLab From 70eee74b70c1a8485ec5f2bafa13dbc66fab6e02 Mon Sep 17 00:00:00 2001 From: Balbir Singh Date: Fri, 22 Feb 2008 13:25:53 +0530 Subject: [PATCH 108/923] sched: remove duplicate code from sched_fair.c pick_task_entity() duplicates existing code. This functionality can be easily obtained using rb_last(). Avoid code duplication by using rb_last(). Signed-off-by: Balbir Singh Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 6c091d6e159..7abad50d935 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -202,16 +202,13 @@ static struct sched_entity *__pick_next_entity(struct cfs_rq *cfs_rq) static inline struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq) { - struct rb_node **link = &cfs_rq->tasks_timeline.rb_node; - struct sched_entity *se = NULL; - struct rb_node *parent; - - while (*link) { - parent = *link; - se = rb_entry(parent, struct sched_entity, run_node); - link = &parent->rb_right; - } + struct rb_node *last; + struct sched_entity *se; + last = rb_last(&cfs_rq->tasks_timeline); + if (!last) + return NULL; + se = rb_entry(last, struct sched_entity, run_node); return se; } -- GitLab From 7eee3e677d6e2e9007afcd7d79b0715525aa552e Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 22 Feb 2008 10:32:21 +0100 Subject: [PATCH 109/923] sched: clean up __pick_last_entity() a bit Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 7abad50d935..c8e6492c592 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -202,14 +202,12 @@ static struct sched_entity *__pick_next_entity(struct cfs_rq *cfs_rq) static inline struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq) { - struct rb_node *last; - struct sched_entity *se; + struct rb_node *last = rb_last(&cfs_rq->tasks_timeline); - last = rb_last(&cfs_rq->tasks_timeline); if (!last) return NULL; - se = rb_entry(last, struct sched_entity, run_node); - return se; + + return rb_entry(last, struct sched_entity, run_node); } /************************************************************** -- GitLab From 67ca7bde2e9d3516b5ae0188330ad1059ac03f38 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Fri, 15 Feb 2008 09:56:36 -0800 Subject: [PATCH 110/923] sched: fix signedness warnings in sched.c Unsigned long values are always assigned to switch_count, make it unsigned long. kernel/sched.c:3897:15: warning: incorrect type in assignment (different signedness) kernel/sched.c:3897:15: expected long *switch_count kernel/sched.c:3897:15: got unsigned long * kernel/sched.c:3921:16: warning: incorrect type in assignment (different signedness) kernel/sched.c:3921:16: expected long *switch_count kernel/sched.c:3921:16: got unsigned long * Signed-off-by: Harvey Harrison Signed-off-by: Ingo Molnar --- kernel/sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched.c b/kernel/sched.c index 7286ccb0108..f06950c8a6c 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -3889,7 +3889,7 @@ pick_next_task(struct rq *rq, struct task_struct *prev) asmlinkage void __sched schedule(void) { struct task_struct *prev, *next; - long *switch_count; + unsigned long *switch_count; struct rq *rq; int cpu; -- GitLab From 2d07b255c7b8a9723010e5c74778e058dc05162e Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Fri, 15 Feb 2008 09:56:34 -0800 Subject: [PATCH 111/923] sched: add declaration of sched_tail to sched.h Avoids sparse warnings: kernel/sched.c:2170:17: warning: symbol 'schedule_tail' was not declared. Should it be static? Avoids the need for an external declaration in arch/um/process.c Signed-off-by: Harvey Harrison Signed-off-by: Ingo Molnar --- arch/um/kernel/process.c | 2 -- include/linux/sched.h | 1 + 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index fc50d2f959d..e8cb9ff183e 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -128,8 +128,6 @@ void *get_current(void) return current; } -extern void schedule_tail(struct task_struct *prev); - /* * This is called magically, by its address being stuffed in a jmp_buf * and being longjmp-d to. diff --git a/include/linux/sched.h b/include/linux/sched.h index e217d188a10..9c17e828d6d 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -242,6 +242,7 @@ struct task_struct; extern void sched_init(void); extern void sched_init_smp(void); +extern asmlinkage void schedule_tail(struct task_struct *prev); extern void init_idle(struct task_struct *idle, int cpu); extern void init_idle_bootup_task(struct task_struct *idle); -- GitLab From ae0027869db7d28563cd783865fab04ffd18419c Mon Sep 17 00:00:00 2001 From: Hiroshi Shimamoto Date: Thu, 14 Feb 2008 10:26:24 -0800 Subject: [PATCH 112/923] latencytop: fix kernel panic while reading latency proc file Reading /proc//latency or /proc//task//latency could cause NULL pointer dereference. In lstats_open(), get_proc_task() can return NULL, in which case the kernel will oops at lstats_show_proc() because m->private is NULL. When get_proc_task() returns NULL, the kernel should return -ENOENT. This can be reproduced by the following script. while : do date bash -c 'ls > ls.$$' & pid=$! cat /proc/$pid/latency & cat /proc/$pid/latency & cat /proc/$pid/latency & cat /proc/$pid/latency done Signed-off-by: Hiroshi Shimamoto Signed-off-by: Ingo Molnar --- fs/proc/base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/proc/base.c b/fs/proc/base.c index 96ee899d650..989e3078d7a 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -350,6 +350,8 @@ static int lstats_open(struct inode *inode, struct file *file) struct seq_file *m; struct task_struct *task = get_proc_task(inode); + if (!task) + return -ENOENT; ret = single_open(file, lstats_show_proc, NULL); if (!ret) { m = file->private_data; -- GitLab From d6643d12cb0885d06a1491b16c1476abcbd53d40 Mon Sep 17 00:00:00 2001 From: Hiroshi Shimamoto Date: Thu, 14 Feb 2008 10:27:00 -0800 Subject: [PATCH 113/923] latencytop: fix memory leak on latency proc file At lstats_open(), calling get_proc_task() gets task struct, but it never put. put_task_struct() should be called when releasing. Signed-off-by: Hiroshi Shimamoto Signed-off-by: Ingo Molnar --- fs/proc/base.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 989e3078d7a..85e06e49807 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -360,6 +360,15 @@ static int lstats_open(struct inode *inode, struct file *file) return ret; } +static int lstats_release(struct inode *inode, struct file *file) +{ + struct seq_file *m = file->private_data; + struct task_struct *task = m->private; + + put_task_struct(task); + return single_release(inode, file); +} + static ssize_t lstats_write(struct file *file, const char __user *buf, size_t count, loff_t *offs) { @@ -378,7 +387,7 @@ static const struct file_operations proc_lstats_operations = { .read = seq_read, .write = lstats_write, .llseek = seq_lseek, - .release = single_release, + .release = lstats_release, }; #endif -- GitLab From 13d77c37cab2bb906022309e1e7182c327e49916 Mon Sep 17 00:00:00 2001 From: Hiroshi Shimamoto Date: Wed, 20 Feb 2008 16:53:29 -0800 Subject: [PATCH 114/923] latencytop: change /proc task_struct access method Change getting task_struct by get_proc_task() at read or write time, and returns -ESRCH if get_proc_task() returns NULL. This is same behavior as other /proc files. Signed-off-by: Hiroshi Shimamoto Signed-off-by: Ingo Molnar --- fs/proc/base.c | 40 ++++++++++++---------------------------- 1 file changed, 12 insertions(+), 28 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 85e06e49807..91a1bd67ac1 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -314,9 +314,12 @@ static int proc_pid_schedstat(struct task_struct *task, char *buffer) static int lstats_show_proc(struct seq_file *m, void *v) { int i; - struct task_struct *task = m->private; - seq_puts(m, "Latency Top version : v0.1\n"); + struct inode *inode = m->private; + struct task_struct *task = get_proc_task(inode); + if (!task) + return -ESRCH; + seq_puts(m, "Latency Top version : v0.1\n"); for (i = 0; i < 32; i++) { if (task->latency_record[i].backtrace[0]) { int q; @@ -341,43 +344,24 @@ static int lstats_show_proc(struct seq_file *m, void *v) } } + put_task_struct(task); return 0; } static int lstats_open(struct inode *inode, struct file *file) { - int ret; - struct seq_file *m; - struct task_struct *task = get_proc_task(inode); - - if (!task) - return -ENOENT; - ret = single_open(file, lstats_show_proc, NULL); - if (!ret) { - m = file->private_data; - m->private = task; - } - return ret; -} - -static int lstats_release(struct inode *inode, struct file *file) -{ - struct seq_file *m = file->private_data; - struct task_struct *task = m->private; - - put_task_struct(task); - return single_release(inode, file); + return single_open(file, lstats_show_proc, inode); } static ssize_t lstats_write(struct file *file, const char __user *buf, size_t count, loff_t *offs) { - struct seq_file *m; - struct task_struct *task; + struct task_struct *task = get_proc_task(file->f_dentry->d_inode); - m = file->private_data; - task = m->private; + if (!task) + return -ESRCH; clear_all_latency_tracing(task); + put_task_struct(task); return count; } @@ -387,7 +371,7 @@ static const struct file_operations proc_lstats_operations = { .read = seq_read, .write = lstats_write, .llseek = seq_lseek, - .release = lstats_release, + .release = single_release, }; #endif -- GitLab From 75f12983d9949fef67ecc133ef4727d93d42b25a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 25 Feb 2008 20:25:21 +0000 Subject: [PATCH 115/923] [CIFS] consolidate duplicate code in posix/unix inode handling Signed-off-by: Christoph Hellwig Signed-off-by: Steve French --- fs/cifs/inode.c | 279 ++++++++++++++++++------------------------------ 1 file changed, 103 insertions(+), 176 deletions(-) diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 1d8aa0385ef..8c23fb330ea 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -69,6 +69,90 @@ static void cifs_set_ops(struct inode *inode) } } +static void cifs_unix_info_to_inode(struct inode *inode, + FILE_UNIX_BASIC_INFO *info, int force_uid_gid) +{ + struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); + struct cifsInodeInfo *cifsInfo = CIFS_I(inode); + __u64 num_of_bytes = le64_to_cpu(info->NumOfBytes); + __u64 end_of_file = le64_to_cpu(info->EndOfFile); + + inode->i_atime = cifs_NTtimeToUnix(le64_to_cpu(info->LastAccessTime)); + inode->i_mtime = + cifs_NTtimeToUnix(le64_to_cpu(info->LastModificationTime)); + inode->i_ctime = cifs_NTtimeToUnix(le64_to_cpu(info->LastStatusChange)); + inode->i_mode = le64_to_cpu(info->Permissions); + + /* + * Since we set the inode type below we need to mask off + * to avoid strange results if bits set above. + */ + inode->i_mode &= ~S_IFMT; + switch (le32_to_cpu(info->Type)) { + case UNIX_FILE: + inode->i_mode |= S_IFREG; + break; + case UNIX_SYMLINK: + inode->i_mode |= S_IFLNK; + break; + case UNIX_DIR: + inode->i_mode |= S_IFDIR; + break; + case UNIX_CHARDEV: + inode->i_mode |= S_IFCHR; + inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor), + le64_to_cpu(info->DevMinor) & MINORMASK); + break; + case UNIX_BLOCKDEV: + inode->i_mode |= S_IFBLK; + inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor), + le64_to_cpu(info->DevMinor) & MINORMASK); + break; + case UNIX_FIFO: + inode->i_mode |= S_IFIFO; + break; + case UNIX_SOCKET: + inode->i_mode |= S_IFSOCK; + break; + default: + /* safest to call it a file if we do not know */ + inode->i_mode |= S_IFREG; + cFYI(1, ("unknown type %d", le32_to_cpu(info->Type))); + break; + } + + if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) && + !force_uid_gid) + inode->i_uid = cifs_sb->mnt_uid; + else + inode->i_uid = le64_to_cpu(info->Uid); + + if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) && + !force_uid_gid) + inode->i_gid = cifs_sb->mnt_gid; + else + inode->i_gid = le64_to_cpu(info->Gid); + + inode->i_nlink = le64_to_cpu(info->Nlinks); + + spin_lock(&inode->i_lock); + if (is_size_safe_to_change(cifsInfo, end_of_file)) { + /* + * We can not safely change the file size here if the client + * is writing to it due to potential races. + */ + i_size_write(inode, end_of_file); + + /* + * i_blocks is not related to (i_size / i_blksize), + * but instead 512 byte (2**9) size is required for + * calculating num blocks. + */ + inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; + } + spin_unlock(&inode->i_lock); +} + int cifs_get_inode_info_unix(struct inode **pinode, const unsigned char *search_path, struct super_block *sb, int xid) { @@ -114,7 +198,6 @@ int cifs_get_inode_info_unix(struct inode **pinode, } } else { struct cifsInodeInfo *cifsInfo; - __u32 type = le32_to_cpu(findData.Type); __u64 num_of_bytes = le64_to_cpu(findData.NumOfBytes); __u64 end_of_file = le64_to_cpu(findData.EndOfFile); @@ -145,73 +228,8 @@ int cifs_get_inode_info_unix(struct inode **pinode, /* this is ok to set on every inode revalidate */ atomic_set(&cifsInfo->inUse, 1); - inode->i_atime = - cifs_NTtimeToUnix(le64_to_cpu(findData.LastAccessTime)); - inode->i_mtime = - cifs_NTtimeToUnix(le64_to_cpu - (findData.LastModificationTime)); - inode->i_ctime = - cifs_NTtimeToUnix(le64_to_cpu(findData.LastStatusChange)); - inode->i_mode = le64_to_cpu(findData.Permissions); - /* since we set the inode type below we need to mask off - to avoid strange results if bits set above */ - inode->i_mode &= ~S_IFMT; - if (type == UNIX_FILE) { - inode->i_mode |= S_IFREG; - } else if (type == UNIX_SYMLINK) { - inode->i_mode |= S_IFLNK; - } else if (type == UNIX_DIR) { - inode->i_mode |= S_IFDIR; - } else if (type == UNIX_CHARDEV) { - inode->i_mode |= S_IFCHR; - inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor), - le64_to_cpu(findData.DevMinor) & MINORMASK); - } else if (type == UNIX_BLOCKDEV) { - inode->i_mode |= S_IFBLK; - inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor), - le64_to_cpu(findData.DevMinor) & MINORMASK); - } else if (type == UNIX_FIFO) { - inode->i_mode |= S_IFIFO; - } else if (type == UNIX_SOCKET) { - inode->i_mode |= S_IFSOCK; - } else { - /* safest to call it a file if we do not know */ - inode->i_mode |= S_IFREG; - cFYI(1, ("unknown type %d", type)); - } - - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) - inode->i_uid = cifs_sb->mnt_uid; - else - inode->i_uid = le64_to_cpu(findData.Uid); - - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) - inode->i_gid = cifs_sb->mnt_gid; - else - inode->i_gid = le64_to_cpu(findData.Gid); - - inode->i_nlink = le64_to_cpu(findData.Nlinks); - - spin_lock(&inode->i_lock); - if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the - client is writing to it due to potential races */ - i_size_write(inode, end_of_file); - - /* blksize needs to be multiple of two. So safer to default to - blksize and blkbits set in superblock so 2**blkbits and blksize - will match rather than setting to: - (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/ + cifs_unix_info_to_inode(inode, &findData, 0); - /* This seems incredibly stupid but it turns out that i_blocks - is not related to (i_size / i_blksize), instead 512 byte size - is required for calculating num blocks */ - - /* 512 bytes (2**9) is the fake blocksize that must be used */ - /* for this calculation */ - inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; - } - spin_unlock(&inode->i_lock); if (num_of_bytes < end_of_file) cFYI(1, ("allocation size less than end of file")); @@ -774,15 +792,10 @@ psx_del_no_retry: static void posix_fill_in_inode(struct inode *tmp_inode, FILE_UNIX_BASIC_INFO *pData, int *pobject_type, int isNewInode) { + struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode); loff_t local_size; struct timespec local_mtime; - struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode); - struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb); - - __u32 type = le32_to_cpu(pData->Type); - __u64 num_of_bytes = le64_to_cpu(pData->NumOfBytes); - __u64 end_of_file = le64_to_cpu(pData->EndOfFile); cifsInfo->time = jiffies; atomic_inc(&cifsInfo->inUse); @@ -790,113 +803,27 @@ static void posix_fill_in_inode(struct inode *tmp_inode, local_mtime = tmp_inode->i_mtime; local_size = tmp_inode->i_size; - tmp_inode->i_atime = - cifs_NTtimeToUnix(le64_to_cpu(pData->LastAccessTime)); - tmp_inode->i_mtime = - cifs_NTtimeToUnix(le64_to_cpu(pData->LastModificationTime)); - tmp_inode->i_ctime = - cifs_NTtimeToUnix(le64_to_cpu(pData->LastStatusChange)); - - tmp_inode->i_mode = le64_to_cpu(pData->Permissions); - /* since we set the inode type below we need to mask off type - to avoid strange results if bits above were corrupt */ - tmp_inode->i_mode &= ~S_IFMT; - if (type == UNIX_FILE) { - *pobject_type = DT_REG; - tmp_inode->i_mode |= S_IFREG; - } else if (type == UNIX_SYMLINK) { - *pobject_type = DT_LNK; - tmp_inode->i_mode |= S_IFLNK; - } else if (type == UNIX_DIR) { - *pobject_type = DT_DIR; - tmp_inode->i_mode |= S_IFDIR; - } else if (type == UNIX_CHARDEV) { - *pobject_type = DT_CHR; - tmp_inode->i_mode |= S_IFCHR; - tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor), - le64_to_cpu(pData->DevMinor) & MINORMASK); - } else if (type == UNIX_BLOCKDEV) { - *pobject_type = DT_BLK; - tmp_inode->i_mode |= S_IFBLK; - tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor), - le64_to_cpu(pData->DevMinor) & MINORMASK); - } else if (type == UNIX_FIFO) { - *pobject_type = DT_FIFO; - tmp_inode->i_mode |= S_IFIFO; - } else if (type == UNIX_SOCKET) { - *pobject_type = DT_SOCK; - tmp_inode->i_mode |= S_IFSOCK; - } else { - /* safest to just call it a file */ - *pobject_type = DT_REG; - tmp_inode->i_mode |= S_IFREG; - cFYI(1, ("unknown inode type %d", type)); - } - - cFYI(DBG2, ("object type: %d", type)); - tmp_inode->i_uid = le64_to_cpu(pData->Uid); - tmp_inode->i_gid = le64_to_cpu(pData->Gid); - tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks); + cifs_unix_info_to_inode(tmp_inode, pData, 1); + cifs_set_ops(tmp_inode); - spin_lock(&tmp_inode->i_lock); - if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the - client is writing to it due to potential races */ - i_size_write(tmp_inode, end_of_file); - - /* 512 bytes (2**9) is the fake blocksize that must be used */ - /* for this calculation, not the real blocksize */ - tmp_inode->i_blocks = (512 - 1 + num_of_bytes) >> 9; - } - spin_unlock(&tmp_inode->i_lock); - - if (S_ISREG(tmp_inode->i_mode)) { - cFYI(1, ("File inode")); - tmp_inode->i_op = &cifs_file_inode_ops; - - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - tmp_inode->i_fop = &cifs_file_direct_nobrl_ops; - else - tmp_inode->i_fop = &cifs_file_direct_ops; + if (!S_ISREG(tmp_inode->i_mode)) + return; - } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - tmp_inode->i_fop = &cifs_file_nobrl_ops; - else - tmp_inode->i_fop = &cifs_file_ops; - - if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) && - (cifs_sb->tcon->ses->server->maxBuf < - PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) - tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; - else - tmp_inode->i_data.a_ops = &cifs_addr_ops; - - if (isNewInode) - return; /* No sense invalidating pages for new inode - since we we have not started caching - readahead file data yet */ + /* + * No sense invalidating pages for new inode + * since we we have not started caching + * readahead file data yet. + */ + if (isNewInode) + return; - if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && - (local_size == tmp_inode->i_size)) { - cFYI(1, ("inode exists but unchanged")); - } else { - /* file may have changed on server */ - cFYI(1, ("invalidate inode, readdir detected change")); - invalidate_remote_inode(tmp_inode); - } - } else if (S_ISDIR(tmp_inode->i_mode)) { - cFYI(1, ("Directory inode")); - tmp_inode->i_op = &cifs_dir_inode_ops; - tmp_inode->i_fop = &cifs_dir_ops; - } else if (S_ISLNK(tmp_inode->i_mode)) { - cFYI(1, ("Symbolic Link inode")); - tmp_inode->i_op = &cifs_symlink_inode_ops; -/* tmp_inode->i_fop = *//* do not need to set to anything */ + if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && + (local_size == tmp_inode->i_size)) { + cFYI(1, ("inode exists but unchanged")); } else { - cFYI(1, ("Special inode")); - init_special_inode(tmp_inode, tmp_inode->i_mode, - tmp_inode->i_rdev); + /* file may have changed on server */ + cFYI(1, ("invalidate inode, readdir detected change")); + invalidate_remote_inode(tmp_inode); } } -- GitLab From 5606bf5d0cbfbc3dfa78793a3793c43dd045fb1b Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 25 Feb 2008 15:37:42 -0500 Subject: [PATCH 116/923] ext4: add missing ext4_journal_stop() Add missing ext4_journal_stop() in error handling. Signed-off-by: Akinobu Mita Signed-off-by: "Theodore Ts'o" Cc: Stephen Tweedie Cc: adilger@clusterfs.com Cc: Andrew Morton Cc: Mingming Cao --- fs/ext4/resize.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 9477a2bd6ff..e29efa0f9d6 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1037,6 +1037,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es, ext4_warning(sb, __FUNCTION__, "multiple resizers run on filesystem!"); unlock_super(sb); + ext4_journal_stop(handle); err = -EBUSY; goto exit_put; } -- GitLab From bdb9441e9c325d50b5ae17f7d3205d65b8ed2e5f Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 25 Feb 2008 23:02:48 +0100 Subject: [PATCH 117/923] lockdep: increase MAX_LOCK_DEPTH Some code paths exceed the current max lock depth (XFS), so increase this limit a bit. I looked at making this a dynamic allocated array, but we should not advocate insane lock depths, so stay with this as long as it works... Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- include/linux/sched.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index e217d188a10..e3ea1243754 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1189,7 +1189,7 @@ struct task_struct { int softirq_context; #endif #ifdef CONFIG_LOCKDEP -# define MAX_LOCK_DEPTH 30UL +# define MAX_LOCK_DEPTH 48UL u64 curr_chain_key; int lockdep_depth; struct held_lock held_locks[MAX_LOCK_DEPTH]; -- GitLab From 1481197b50114d7212d659d41cb97f31a8934883 Mon Sep 17 00:00:00 2001 From: Dale Farnsworth Date: Mon, 25 Feb 2008 23:03:02 +0100 Subject: [PATCH 118/923] Subject: lockdep: include all lock classes in all_lock_classes Add each lock class to the all_lock_classes list when it is first registered. Previously, lock classes were added to all_lock_classes when the lock class was first used. Since one of the uses of the list is to find unused locks, this didn't work well. Signed-off-by: Dale Farnsworth Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/lockdep.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 3574379f4d6..81a4e4a3f08 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -779,6 +779,10 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force) * parallel walking of the hash-list safe: */ list_add_tail_rcu(&class->hash_entry, hash_head); + /* + * Add it to the global list of classes: + */ + list_add_tail_rcu(&class->lock_entry, &all_lock_classes); if (verbose(class)) { graph_unlock(); @@ -2282,10 +2286,6 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this, return 0; break; case LOCK_USED: - /* - * Add it to the global list of classes: - */ - list_add_tail_rcu(&this->class->lock_entry, &all_lock_classes); debug_atomic_dec(&nr_unused_locks); break; default: -- GitLab From c5c61bda5ecceaa0f16d326cd2c2147468a4c443 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 25 Feb 2008 02:07:25 +0200 Subject: [PATCH 119/923] make atapi_dmadir static atapi_dmadir can now become static. Signed-off-by: Adrian Bunk Signed-off-by: Jeff Garzik --- drivers/ata/libata-core.c | 2 +- drivers/ata/libata.h | 1 - 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index fbc24358ada..b57fad3eb24 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -113,7 +113,7 @@ int atapi_enabled = 1; module_param(atapi_enabled, int, 0444); MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)"); -int atapi_dmadir = 0; +static int atapi_dmadir = 0; module_param(atapi_dmadir, int, 0444); MODULE_PARM_DESC(atapi_dmadir, "Enable ATAPI DMADIR bridge support (0=off, 1=on)"); diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 6036dedfe37..aa884f71a12 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -56,7 +56,6 @@ enum { extern unsigned int ata_print_id; extern struct workqueue_struct *ata_aux_wq; extern int atapi_enabled; -extern int atapi_dmadir; extern int atapi_passthru16; extern int libata_fua; extern int libata_noacpi; -- GitLab From 72ad6ec48989d4b5477128e739b960be11155036 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Mon, 25 Feb 2008 17:31:10 -0500 Subject: [PATCH 120/923] Revert "power_state: get rid of write-only variable in SATA" This reverts commit 559bbe6cbd0d8c68d40076a5f7dc98e3bf5864b2. Michael S. Tsirkin reports that this changes breaks suspend/resume. Signed-off-by: Jeff Garzik --- drivers/ata/libata-core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index b57fad3eb24..4fbcce758b0 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6567,6 +6567,8 @@ int ata_host_suspend(struct ata_host *host, pm_message_t mesg) ata_lpm_enable(host); rc = ata_host_request_pm(host, mesg, 0, ATA_EHI_QUIET, 1); + if (rc == 0) + host->dev->power.power_state = mesg; return rc; } @@ -6585,6 +6587,7 @@ void ata_host_resume(struct ata_host *host) { ata_host_request_pm(host, PMSG_ON, ATA_EH_SOFTRESET, ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, 0); + host->dev->power.power_state = PMSG_ON; /* reenable link pm */ ata_lpm_disable(host); -- GitLab From 82d416fffb5e8e39e899be7075dbeeac5fb8f0c2 Mon Sep 17 00:00:00 2001 From: Bryan Rosenburg Date: Wed, 20 Feb 2008 17:31:48 -0600 Subject: [PATCH 121/923] RDMA/cxgb3: Fix shift calc in build_phys_page_list() for 1-entry page lists A single entry (addr 0x10001000, size 0x2000) will get converted to page address 0x10000000 with a page size of 0x4000. The code as it stands doesn't address the single buffer case, but in fact it allows the subsequent single-buffer special case to be eliminated entirely. Because the mask now includes the (page adjusted) starting and ending addresses, the general case works for the single buffer case as well. Signed-off-by: Bryan Rosenburg Acked-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/iwch_mem.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/hw/cxgb3/iwch_mem.c b/drivers/infiniband/hw/cxgb3/iwch_mem.c index 73bfd1656f8..b8797c66676 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_mem.c +++ b/drivers/infiniband/hw/cxgb3/iwch_mem.c @@ -136,14 +136,8 @@ int build_phys_page_list(struct ib_phys_buf *buffer_list, /* Find largest page shift we can use to cover buffers */ for (*shift = PAGE_SHIFT; *shift < 27; ++(*shift)) - if (num_phys_buf > 1) { - if ((1ULL << *shift) & mask) - break; - } else - if (1ULL << *shift >= - buffer_list[0].size + - (buffer_list[0].addr & ((1ULL << *shift) - 1))) - break; + if ((1ULL << *shift) & mask) + break; buffer_list[0].size += buffer_list[0].addr & ((1ULL << *shift) - 1); buffer_list[0].addr &= ~0ull << *shift; -- GitLab From 9300c0c06788a409a97d54bbe3360d2f385fc621 Mon Sep 17 00:00:00 2001 From: Chien Tung Date: Thu, 21 Feb 2008 07:51:17 -0600 Subject: [PATCH 122/923] RDMA/nes: Resurrect error path dead code Adrian Bunk pointed out that a Coverity scan found some apparently dead code in nes_verbs.c that really shouldn't have been dead. The function nes_create_cq() was missing the assignment err = 1; just prior to an iteration that conditionally set err = 0 if a PBL was found for a given virtual CQ. I also noticed we should have been returning -EFAULT on a couple related error paths. Signed-off-by: Chien Tung Signed-off-by: Glenn Streiff Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_verbs.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 4dafbe16e82..201b95ee23c 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -1327,7 +1327,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd, (long long unsigned int)req.user_wqe_buffers); nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); kfree(nesqp->allocated_buffer); - return ERR_PTR(-ENOMEM); + return ERR_PTR(-EFAULT); } } @@ -1674,6 +1674,7 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, } nes_debug(NES_DBG_CQ, "CQ Virtual Address = %08lX, size = %u.\n", (unsigned long)req.user_cq_buffer, entries); + err = 1; list_for_each_entry(nespbl, &nes_ucontext->cq_reg_mem_list, list) { if (nespbl->user_base == (unsigned long )req.user_cq_buffer) { list_del(&nespbl->list); @@ -1686,7 +1687,7 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, if (err) { nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); - return ERR_PTR(err); + return ERR_PTR(-EFAULT); } pbl_entries = nespbl->pbl_size >> 3; -- GitLab From 65b07ec29354b345ff93914d064c2467aef4c862 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Thu, 21 Feb 2008 08:01:18 -0600 Subject: [PATCH 123/923] RDMA/nes: Fix off-by-one Fix an off-by-one spotted by the Coverity checker. Signed-off-by: Adrian Bunk Signed-off-by: Glenn Streiff Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_verbs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 201b95ee23c..692f0d82130 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -929,7 +929,7 @@ static struct ib_pd *nes_alloc_pd(struct ib_device *ibdev, NES_MAX_USER_DB_REGIONS, nesucontext->first_free_db); nes_debug(NES_DBG_PD, "find_first_zero_biton doorbells returned %u, mapping pd_id %u.\n", nespd->mmap_db_index, nespd->pd_id); - if (nespd->mmap_db_index > NES_MAX_USER_DB_REGIONS) { + if (nespd->mmap_db_index >= NES_MAX_USER_DB_REGIONS) { nes_debug(NES_DBG_PD, "mmap_db_index > MAX\n"); nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); kfree(nespd); -- GitLab From 0b442d2c28479332610c46e1a74e5638ab63a97d Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 26 Feb 2008 03:44:02 +0000 Subject: [PATCH 124/923] [CIFS] remove unused variable Signed-off-by: Steve French --- fs/cifs/inode.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 8c23fb330ea..24eb4d39215 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -790,7 +790,7 @@ psx_del_no_retry: } static void posix_fill_in_inode(struct inode *tmp_inode, - FILE_UNIX_BASIC_INFO *pData, int *pobject_type, int isNewInode) + FILE_UNIX_BASIC_INFO *pData, int isNewInode) { struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode); loff_t local_size; @@ -873,7 +873,6 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) cFYI(1, ("posix mkdir returned 0x%x", rc)); d_drop(direntry); } else { - int obj_type; if (pInfo->Type == cpu_to_le32(-1)) { /* no return info, go query for it */ kfree(pInfo); @@ -909,7 +908,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) /* we already checked in POSIXCreate whether frame was long enough */ posix_fill_in_inode(direntry->d_inode, - pInfo, &obj_type, 1 /* NewInode */); + pInfo, 1 /* NewInode */); #ifdef CONFIG_CIFS_DEBUG2 cFYI(1, ("instantiated dentry %p %s to inode %p", direntry, direntry->d_name.name, newinode)); -- GitLab From 24d10f0c37d301e88f6965e3dc0aa684311544e5 Mon Sep 17 00:00:00 2001 From: Adrian McMenamin Date: Sat, 16 Feb 2008 23:37:33 +0000 Subject: [PATCH 125/923] maple: remove unused variable Remove an unused variable from the definition of struct maple_device Signed-off-by: Adrian McMenamin Signed-off-by: Paul Mundt --- include/linux/maple.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/linux/maple.h b/include/linux/maple.h index 3f01e2bae1a..d31e36ebb43 100644 --- a/include/linux/maple.h +++ b/include/linux/maple.h @@ -64,7 +64,6 @@ struct maple_driver { int (*connect) (struct maple_device * dev); void (*disconnect) (struct maple_device * dev); struct device_driver drv; - int registered; }; void maple_getcond_callback(struct maple_device *dev, -- GitLab From 4377e605e0b004a8d2049eac6cc89fbe1fdcdbb2 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Sun, 17 Feb 2008 15:38:35 +0100 Subject: [PATCH 126/923] sh: Storage class should be before const qualifier The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh2a/clock-sh7203.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sh/kernel/cpu/sh2a/clock-sh7203.c b/arch/sh/kernel/cpu/sh2a/clock-sh7203.c index 3feb95a4fcb..fb781329848 100644 --- a/arch/sh/kernel/cpu/sh2a/clock-sh7203.c +++ b/arch/sh/kernel/cpu/sh2a/clock-sh7203.c @@ -21,8 +21,8 @@ #include #include -const static int pll1rate[]={8,12,16,0}; -const static int pfc_divisors[]={1,2,3,4,6,8,12}; +static const int pll1rate[]={8,12,16,0}; +static const int pfc_divisors[]={1,2,3,4,6,8,12}; #define ifc_divisors pfc_divisors #if (CONFIG_SH_CLK_MD == 0) -- GitLab From 1de83e94e6d4af22614c100b0c69716ab6eaa870 Mon Sep 17 00:00:00 2001 From: Roel Kluin <12o3l@tiscali.nl> Date: Mon, 18 Feb 2008 14:09:10 +0100 Subject: [PATCH 127/923] sh: heartbeat: ioremap is expected to succeed ioremap is expected to succeed Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Paul Mundt --- arch/sh/drivers/heartbeat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/drivers/heartbeat.c b/arch/sh/drivers/heartbeat.c index b76a14f12ce..ab77b0e0fa0 100644 --- a/arch/sh/drivers/heartbeat.c +++ b/arch/sh/drivers/heartbeat.c @@ -93,7 +93,7 @@ static int heartbeat_drv_probe(struct platform_device *pdev) } hd->base = ioremap_nocache(res->start, res->end - res->start + 1); - if (!unlikely(hd->base)) { + if (unlikely(!hd->base)) { dev_err(&pdev->dev, "ioremap failed\n"); if (!pdev->dev.platform_data) -- GitLab From b7fd095602468ee501c5bcc3f9ca788cb3834096 Mon Sep 17 00:00:00 2001 From: Rafael Ignacio Zurita Date: Mon, 18 Feb 2008 22:32:58 -0300 Subject: [PATCH 128/923] sh: fix rtc_resources setup for sh770x Fix the RTC resources setup for sh770x. Whit these proper start values RTC driver (drivers/rtc/rtc-sh.c) works. Signed-off-by: Rafael Ignacio Zurita Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh3/setup-sh770x.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c index 969804bb523..9066ed78e28 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c @@ -123,15 +123,15 @@ static struct resource rtc_resources[] = { .flags = IORESOURCE_IO, }, [1] = { - .start = 20, + .start = 21, .flags = IORESOURCE_IRQ, }, [2] = { - .start = 21, + .start = 22, .flags = IORESOURCE_IRQ, }, [3] = { - .start = 22, + .start = 20, .flags = IORESOURCE_IRQ, }, }; -- GitLab From bd49666974a12f39eb9c74044e0b1753efcd94c4 Mon Sep 17 00:00:00 2001 From: Adrian McMenamin Date: Sun, 24 Feb 2008 14:30:23 +0000 Subject: [PATCH 129/923] maple: fix device detection The maple bus driver that went into the kernel mainline in September 2007 contained some bugs which were revealed by the update of the kobj code for the current release series. Unfortunately those bugs also helped ensure maple devices were properly detected. This patch (against the current git) now ensures that devices are properly detected again. (A previous attempt to fix this by delaying initialisation only partially fixed this - as became apparent when the bus was fully loaded) Signed-off-by: Adrian McMenamin Signed-off-by: Paul Mundt --- drivers/sh/maple/maple.c | 66 ++++++++++++++++++++++++++-------------- 1 file changed, 43 insertions(+), 23 deletions(-) diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c index 9cfcfd8dad5..617efb1640b 100644 --- a/drivers/sh/maple/maple.c +++ b/drivers/sh/maple/maple.c @@ -1,7 +1,7 @@ /* * Core maple bus functionality * - * Copyright (C) 2007 Adrian McMenamin + * Copyright (C) 2007, 2008 Adrian McMenamin * * Based on 2.4 code by: * @@ -18,7 +18,6 @@ #include #include #include -#include #include #include #include @@ -54,7 +53,7 @@ static struct device maple_bus; static int subdevice_map[MAPLE_PORTS]; static unsigned long *maple_sendbuf, *maple_sendptr, *maple_lastptr; static unsigned long maple_pnp_time; -static int started, scanning, liststatus, realscan; +static int started, scanning, liststatus, fullscan; static struct kmem_cache *maple_queue_cache; struct maple_device_specify { @@ -62,6 +61,9 @@ struct maple_device_specify { int unit; }; +static bool checked[4]; +static struct maple_device *baseunits[4]; + /** * maple_driver_register - register a device driver * automatically makes the driver bus a maple bus @@ -309,11 +311,9 @@ static void maple_attach_driver(struct maple_device *mdev) else break; - if (realscan) { - printk(KERN_INFO "Maple device detected: %s\n", - mdev->product_name); - printk(KERN_INFO "Maple device: %s\n", mdev->product_licence); - } + printk(KERN_INFO "Maple device detected: %s\n", + mdev->product_name); + printk(KERN_INFO "Maple device: %s\n", mdev->product_licence); function = be32_to_cpu(mdev->devinfo.function); @@ -323,10 +323,9 @@ static void maple_attach_driver(struct maple_device *mdev) mdev->driver = &maple_dummy_driver; sprintf(mdev->dev.bus_id, "%d:0.port", mdev->port); } else { - if (realscan) - printk(KERN_INFO - "Maple bus at (%d, %d): Function 0x%lX\n", - mdev->port, mdev->unit, function); + printk(KERN_INFO + "Maple bus at (%d, %d): Function 0x%lX\n", + mdev->port, mdev->unit, function); matched = bus_for_each_drv(&maple_bus_type, NULL, mdev, @@ -334,9 +333,8 @@ static void maple_attach_driver(struct maple_device *mdev) if (matched == 0) { /* Driver does not exist yet */ - if (realscan) - printk(KERN_INFO - "No maple driver found.\n"); + printk(KERN_INFO + "No maple driver found.\n"); mdev->driver = &maple_dummy_driver; } sprintf(mdev->dev.bus_id, "%d:0%d.%lX", mdev->port, @@ -472,9 +470,12 @@ static void maple_response_none(struct maple_device *mdev, maple_detach_driver(mdev); return; } - if (!started) { - printk(KERN_INFO "No maple devices attached to port %d\n", - mdev->port); + if (!started || !fullscan) { + if (checked[mdev->port] == false) { + checked[mdev->port] = true; + printk(KERN_INFO "No maple devices attached" + " to port %d\n", mdev->port); + } return; } maple_clean_submap(mdev); @@ -485,8 +486,14 @@ static void maple_response_devinfo(struct maple_device *mdev, char *recvbuf) { char submask; - if ((!started) || (scanning == 2)) { - maple_attach_driver(mdev); + if (!started || (scanning == 2) || !fullscan) { + if ((mdev->unit == 0) && (checked[mdev->port] == false)) { + checked[mdev->port] = true; + maple_attach_driver(mdev); + } else { + if (mdev->unit != 0) + maple_attach_driver(mdev); + } return; } if (mdev->unit == 0) { @@ -505,6 +512,7 @@ static void maple_dma_handler(struct work_struct *work) struct maple_device *dev; char *recvbuf; enum maple_code code; + int i; if (!maple_dma_done()) return; @@ -557,6 +565,19 @@ static void maple_dma_handler(struct work_struct *work) } else scanning = 0; + if (!fullscan) { + fullscan = 1; + for (i = 0; i < MAPLE_PORTS; i++) { + if (checked[i] == false) { + fullscan = 0; + dev = baseunits[i]; + dev->mq->command = + MAPLE_COMMAND_DEVINFO; + dev->mq->length = 0; + maple_add_packet(dev->mq); + } + } + } if (started == 0) started = 1; } @@ -694,7 +715,9 @@ static int __init maple_bus_init(void) /* setup maple ports */ for (i = 0; i < MAPLE_PORTS; i++) { + checked[i] = false; mdev[i] = maple_alloc_dev(i, 0); + baseunits[i] = mdev[i]; if (!mdev[i]) { while (i-- > 0) maple_free_dev(mdev[i]); @@ -703,12 +726,9 @@ static int __init maple_bus_init(void) mdev[i]->mq->command = MAPLE_COMMAND_DEVINFO; mdev[i]->mq->length = 0; maple_add_packet(mdev[i]->mq); - /* delay aids hardware detection */ - mdelay(5); subdevice_map[i] = 0; } - realscan = 1; /* setup maplebus hardware */ maplebus_dma_reset(); /* initial detection */ -- GitLab From 763a495a022ac26afb2940e768e86725c1c7e8c9 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 26 Feb 2008 14:14:56 +0900 Subject: [PATCH 130/923] sh: revert dreamcast pci change Commit e036eaa681a17f71b64f6d9040fe605555623919 broke dreamcast pci, this patch fixes that by reverting the dreamcast specific bits. Signed-off-by: Magnus Damm Acked-by: Adrian McMenamin Signed-off-by: Andrew Morton Signed-off-by: Paul Mundt --- arch/sh/drivers/pci/ops-dreamcast.c | 44 ++++++++++++++--------------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/arch/sh/drivers/pci/ops-dreamcast.c b/arch/sh/drivers/pci/ops-dreamcast.c index 0dac87b1962..e1284fc6936 100644 --- a/arch/sh/drivers/pci/ops-dreamcast.c +++ b/arch/sh/drivers/pci/ops-dreamcast.c @@ -83,9 +83,9 @@ static int gapspci_read(struct pci_bus *bus, unsigned int devfn, int where, int return PCIBIOS_DEVICE_NOT_FOUND; switch (size) { - case 1: *val = ctrl_inb(GAPSPCI_BBA_CONFIG+where); break; - case 2: *val = ctrl_inw(GAPSPCI_BBA_CONFIG+where); break; - case 4: *val = ctrl_inl(GAPSPCI_BBA_CONFIG+where); break; + case 1: *val = inb(GAPSPCI_BBA_CONFIG+where); break; + case 2: *val = inw(GAPSPCI_BBA_CONFIG+where); break; + case 4: *val = inl(GAPSPCI_BBA_CONFIG+where); break; } return PCIBIOS_SUCCESSFUL; @@ -97,9 +97,9 @@ static int gapspci_write(struct pci_bus *bus, unsigned int devfn, int where, int return PCIBIOS_DEVICE_NOT_FOUND; switch (size) { - case 1: ctrl_outb(( u8)val, GAPSPCI_BBA_CONFIG+where); break; - case 2: ctrl_outw((u16)val, GAPSPCI_BBA_CONFIG+where); break; - case 4: ctrl_outl((u32)val, GAPSPCI_BBA_CONFIG+where); break; + case 1: outb(( u8)val, GAPSPCI_BBA_CONFIG+where); break; + case 2: outw((u16)val, GAPSPCI_BBA_CONFIG+where); break; + case 4: outl((u32)val, GAPSPCI_BBA_CONFIG+where); break; } return PCIBIOS_SUCCESSFUL; @@ -127,36 +127,36 @@ int __init gapspci_init(void) */ for (i=0; i<16; i++) - idbuf[i] = ctrl_inb(GAPSPCI_REGS+i); + idbuf[i] = inb(GAPSPCI_REGS+i); if (strncmp(idbuf, "GAPSPCI_BRIDGE_2", 16)) return -ENODEV; - ctrl_outl(0x5a14a501, GAPSPCI_REGS+0x18); + outl(0x5a14a501, GAPSPCI_REGS+0x18); for (i=0; i<1000000; i++) ; - if (ctrl_inl(GAPSPCI_REGS+0x18) != 1) + if (inl(GAPSPCI_REGS+0x18) != 1) return -EINVAL; - ctrl_outl(0x01000000, GAPSPCI_REGS+0x20); - ctrl_outl(0x01000000, GAPSPCI_REGS+0x24); + outl(0x01000000, GAPSPCI_REGS+0x20); + outl(0x01000000, GAPSPCI_REGS+0x24); - ctrl_outl(GAPSPCI_DMA_BASE, GAPSPCI_REGS+0x28); - ctrl_outl(GAPSPCI_DMA_BASE+GAPSPCI_DMA_SIZE, GAPSPCI_REGS+0x2c); + outl(GAPSPCI_DMA_BASE, GAPSPCI_REGS+0x28); + outl(GAPSPCI_DMA_BASE+GAPSPCI_DMA_SIZE, GAPSPCI_REGS+0x2c); - ctrl_outl(1, GAPSPCI_REGS+0x14); - ctrl_outl(1, GAPSPCI_REGS+0x34); + outl(1, GAPSPCI_REGS+0x14); + outl(1, GAPSPCI_REGS+0x34); /* Setting Broadband Adapter */ - ctrl_outw(0xf900, GAPSPCI_BBA_CONFIG+0x06); - ctrl_outl(0x00000000, GAPSPCI_BBA_CONFIG+0x30); - ctrl_outb(0x00, GAPSPCI_BBA_CONFIG+0x3c); - ctrl_outb(0xf0, GAPSPCI_BBA_CONFIG+0x0d); - ctrl_outw(0x0006, GAPSPCI_BBA_CONFIG+0x04); - ctrl_outl(0x00002001, GAPSPCI_BBA_CONFIG+0x10); - ctrl_outl(0x01000000, GAPSPCI_BBA_CONFIG+0x14); + outw(0xf900, GAPSPCI_BBA_CONFIG+0x06); + outl(0x00000000, GAPSPCI_BBA_CONFIG+0x30); + outb(0x00, GAPSPCI_BBA_CONFIG+0x3c); + outb(0xf0, GAPSPCI_BBA_CONFIG+0x0d); + outw(0x0006, GAPSPCI_BBA_CONFIG+0x04); + outl(0x00002001, GAPSPCI_BBA_CONFIG+0x10); + outl(0x01000000, GAPSPCI_BBA_CONFIG+0x14); return 0; } -- GitLab From 8b1d16540c6ae4e62fcff56bd47794951b3ca87a Mon Sep 17 00:00:00 2001 From: Hideo Saito Date: Tue, 26 Feb 2008 14:28:48 +0900 Subject: [PATCH 131/923] sh: Fix up HAS_SR_RB typo in entry-macros. Signed-off-by: Hideo Saito Signed-off-by: Paul Mundt --- include/asm-sh/entry-macros.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/asm-sh/entry-macros.S b/include/asm-sh/entry-macros.S index 500030eae7a..2dab0b8d945 100644 --- a/include/asm-sh/entry-macros.S +++ b/include/asm-sh/entry-macros.S @@ -12,7 +12,7 @@ not r11, r11 stc sr, r10 and r11, r10 -#ifdef CONFIG_HAS_SR_RB +#ifdef CONFIG_CPU_HAS_SR_RB stc k_g_imask, r11 or r11, r10 #endif @@ -20,7 +20,7 @@ .endm .macro get_current_thread_info, ti, tmp -#ifdef CONFIG_HAS_SR_RB +#ifdef CONFIG_CPU_HAS_SR_RB stc r7_bank, \ti #else mov #((THREAD_SIZE - 1) >> 10) ^ 0xff, \tmp -- GitLab From 96de1a8f0275bd67f243833e7088baced518f873 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Tue, 26 Feb 2008 14:52:45 +0900 Subject: [PATCH 132/923] serial: Move asm-sh/sci.h to linux/serial_sci.h. This header is needed on other architectures as well (namely h8300), which currently fails to build without this in place. Rather than duplicating the port definition completely there, just move this to a common location instead. This should get h8300 working again for 2.6.25, in addition to the changes already pushed by Sato-san in -rc2. Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh2/setup-sh7619.c | 2 +- arch/sh/kernel/cpu/sh2a/setup-sh7203.c | 2 +- arch/sh/kernel/cpu/sh2a/setup-sh7206.c | 2 +- arch/sh/kernel/cpu/sh3/setup-sh7705.c | 2 +- arch/sh/kernel/cpu/sh3/setup-sh770x.c | 2 +- arch/sh/kernel/cpu/sh3/setup-sh7710.c | 2 +- arch/sh/kernel/cpu/sh3/setup-sh7720.c | 2 +- arch/sh/kernel/cpu/sh4/setup-sh4-202.c | 2 +- arch/sh/kernel/cpu/sh4/setup-sh7750.c | 2 +- arch/sh/kernel/cpu/sh4/setup-sh7760.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7343.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7366.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7722.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7763.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7770.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7780.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-sh7785.c | 2 +- arch/sh/kernel/cpu/sh4a/setup-shx3.c | 2 +- drivers/serial/sh-sci.c | 2 +- include/{asm-sh/sci.h => linux/serial_sci.h} | 10 ++++------ 20 files changed, 23 insertions(+), 25 deletions(-) rename include/{asm-sh/sci.h => linux/serial_sci.h} (73%) diff --git a/arch/sh/kernel/cpu/sh2/setup-sh7619.c b/arch/sh/kernel/cpu/sh2/setup-sh7619.c index b230eb278ce..cc530f4d84d 100644 --- a/arch/sh/kernel/cpu/sh2/setup-sh7619.c +++ b/arch/sh/kernel/cpu/sh2/setup-sh7619.c @@ -10,7 +10,7 @@ #include #include #include -#include +#include enum { UNUSED = 0, diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c index db6ef5cecde..e98dc445035 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c +++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c @@ -10,7 +10,7 @@ #include #include #include -#include +#include enum { UNUSED = 0, diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c index a564425b905..e6d4ec445dd 100644 --- a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c +++ b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c @@ -10,7 +10,7 @@ #include #include #include -#include +#include enum { UNUSED = 0, diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c index dd0a20a685f..f581534cb73 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include #include enum { diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c index 9066ed78e28..d3733b13ea5 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c @@ -16,7 +16,7 @@ #include #include #include -#include +#include enum { UNUSED = 0, diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c index 0cc0e2bf135..7406c9ad925 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include #include enum { diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c index 3855ea4c21c..8028082527c 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c @@ -16,7 +16,7 @@ #include #include #include -#include +#include #include #define INTC_ICR1 0xA4140010UL diff --git a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c index dab193293f2..7371abf64f8 100644 --- a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c +++ b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c @@ -10,7 +10,7 @@ #include #include #include -#include +#include static struct plat_sci_port sci_platform_data[] = { { diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c index ae3603aca61..ec884039b91 100644 --- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c +++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include static struct resource rtc_resources[] = { [0] = { diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c index 85f81579b97..254c5c55ab9 100644 --- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c +++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c @@ -10,7 +10,7 @@ #include #include #include -#include +#include enum { UNUSED = 0, diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c index c0a3f079dfd..6d4f50cd4aa 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c @@ -10,7 +10,7 @@ #include #include #include -#include +#include static struct plat_sci_port sci_platform_data[] = { { diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c index 967e8b69a2f..f26b5cdad0d 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include static struct plat_sci_port sci_platform_data[] = { { diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c index 73c778d40d1..b98b4bc93ec 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c @@ -10,9 +10,9 @@ #include #include #include +#include #include #include -#include static struct resource usbf_resources[] = { [0] = { diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c index eabd5386812..07c988dc9de 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include static struct resource rtc_resources[] = { [0] = { diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c index 32f4f59a837..b9cec48b180 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c @@ -10,7 +10,7 @@ #include #include #include -#include +#include static struct plat_sci_port sci_platform_data[] = { { diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c index 293004b526f..18dbbe23fea 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c @@ -11,7 +11,7 @@ #include #include #include -#include +#include static struct resource rtc_resources[] = { [0] = { diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c index 74b60e96cdf..621e7329ec6 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c @@ -10,10 +10,10 @@ #include #include #include +#include #include #include #include -#include static struct plat_sci_port sci_platform_data[] = { { diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c index 4dc958b6b31..bd35f32534b 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c +++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c @@ -10,9 +10,9 @@ #include #include #include +#include #include #include -#include static struct plat_sci_port sci_platform_data[] = { { diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c index 9ce12cb2ceb..a8c116b80bf 100644 --- a/drivers/serial/sh-sci.c +++ b/drivers/serial/sh-sci.c @@ -41,6 +41,7 @@ #include #include #include +#include #ifdef CONFIG_CPU_FREQ #include @@ -54,7 +55,6 @@ #include #endif -#include #include "sh-sci.h" struct sci_port { diff --git a/include/asm-sh/sci.h b/include/linux/serial_sci.h similarity index 73% rename from include/asm-sh/sci.h rename to include/linux/serial_sci.h index 52e73660c12..893cc53486b 100644 --- a/include/asm-sh/sci.h +++ b/include/linux/serial_sci.h @@ -1,12 +1,10 @@ -#ifndef __ASM_SH_SCI_H -#define __ASM_SH_SCI_H +#ifndef __LINUX_SERIAL_SCI_H +#define __LINUX_SERIAL_SCI_H #include /* - * Generic header for SuperH SCI(F) - * - * Do not place SH-specific parts in here, sh64 and h8300 depend on this too. + * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts) */ /* Offsets into the sci_port->irqs array */ @@ -31,4 +29,4 @@ struct plat_sci_port { int early_sci_setup(struct uart_port *port); -#endif /* __ASM_SH_SCI_H */ +#endif /* __LINUX_SERIAL_SCI_H */ -- GitLab From db69c915e67705daac25cad06d816c09be634de0 Mon Sep 17 00:00:00 2001 From: Lachlan McIlroy Date: Tue, 26 Feb 2008 17:00:14 +1100 Subject: [PATCH 133/923] [XFS] Undo bit ops cleanup mod due to regression on 32-bit powermac platform. SGI-PV: 974005 SGI-Modid: xfs-linux-melb:xfs-kern:30558a Signed-off-by: Lachlan McIlroy --- fs/xfs/xfs_bit.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h index 325a007dec9..0f9fc9a3c41 100644 --- a/fs/xfs/xfs_bit.h +++ b/fs/xfs/xfs_bit.h @@ -61,15 +61,15 @@ static inline int xfs_highbit64(__uint64_t v) /* Get low bit set out of 32-bit argument, -1 if none set */ static inline int xfs_lowbit32(__uint32_t v) { - __uint32_t t = v; - return (t) ? find_first_bit((unsigned long *)&t, 32) : -1; + unsigned long t = v; + return (v) ? find_first_bit(&t, 32) : -1; } /* Get low bit set out of 64-bit argument, -1 if none set */ static inline int xfs_lowbit64(__uint64_t v) { - __uint64_t t = v; - return (t) ? find_first_bit((unsigned long *)&t, 64) : -1; + unsigned long t = v; + return (v) ? find_first_bit(&t, 64) : -1; } /* Return whether bitmap is empty (1 == empty) */ -- GitLab From ef8ece55d9b6825c28a5c1a4bd89b94040cb7b32 Mon Sep 17 00:00:00 2001 From: Lachlan McIlroy Date: Tue, 26 Feb 2008 17:00:22 +1100 Subject: [PATCH 134/923] [XFS] Undo bit ops cleanup mod due to regression on 32-bit powermac platform. SGI-PV: 971186 SGI-Modid: xfs-linux-melb:xfs-kern:30559a Signed-off-by: Lachlan McIlroy --- fs/xfs/xfs_bit.c | 103 +++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_bit.h | 27 +++--------- fs/xfs/xfs_rtalloc.c | 19 +++++--- 3 files changed, 120 insertions(+), 29 deletions(-) diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c index 48228848f5a..fab0b6d5a41 100644 --- a/fs/xfs/xfs_bit.c +++ b/fs/xfs/xfs_bit.c @@ -25,6 +25,109 @@ * XFS bit manipulation routines, used in non-realtime code. */ +#ifndef HAVE_ARCH_HIGHBIT +/* + * Index of high bit number in byte, -1 for none set, 0..7 otherwise. + */ +static const char xfs_highbit[256] = { + -1, 0, 1, 1, 2, 2, 2, 2, /* 00 .. 07 */ + 3, 3, 3, 3, 3, 3, 3, 3, /* 08 .. 0f */ + 4, 4, 4, 4, 4, 4, 4, 4, /* 10 .. 17 */ + 4, 4, 4, 4, 4, 4, 4, 4, /* 18 .. 1f */ + 5, 5, 5, 5, 5, 5, 5, 5, /* 20 .. 27 */ + 5, 5, 5, 5, 5, 5, 5, 5, /* 28 .. 2f */ + 5, 5, 5, 5, 5, 5, 5, 5, /* 30 .. 37 */ + 5, 5, 5, 5, 5, 5, 5, 5, /* 38 .. 3f */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 40 .. 47 */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 48 .. 4f */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 50 .. 57 */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 58 .. 5f */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 60 .. 67 */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 68 .. 6f */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 70 .. 77 */ + 6, 6, 6, 6, 6, 6, 6, 6, /* 78 .. 7f */ + 7, 7, 7, 7, 7, 7, 7, 7, /* 80 .. 87 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* 88 .. 8f */ + 7, 7, 7, 7, 7, 7, 7, 7, /* 90 .. 97 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* 98 .. 9f */ + 7, 7, 7, 7, 7, 7, 7, 7, /* a0 .. a7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* a8 .. af */ + 7, 7, 7, 7, 7, 7, 7, 7, /* b0 .. b7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* b8 .. bf */ + 7, 7, 7, 7, 7, 7, 7, 7, /* c0 .. c7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* c8 .. cf */ + 7, 7, 7, 7, 7, 7, 7, 7, /* d0 .. d7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* d8 .. df */ + 7, 7, 7, 7, 7, 7, 7, 7, /* e0 .. e7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* e8 .. ef */ + 7, 7, 7, 7, 7, 7, 7, 7, /* f0 .. f7 */ + 7, 7, 7, 7, 7, 7, 7, 7, /* f8 .. ff */ +}; +#endif + +/* + * xfs_highbit32: get high bit set out of 32-bit argument, -1 if none set. + */ +inline int +xfs_highbit32( + __uint32_t v) +{ +#ifdef HAVE_ARCH_HIGHBIT + return highbit32(v); +#else + int i; + + if (v & 0xffff0000) + if (v & 0xff000000) + i = 24; + else + i = 16; + else if (v & 0x0000ffff) + if (v & 0x0000ff00) + i = 8; + else + i = 0; + else + return -1; + return i + xfs_highbit[(v >> i) & 0xff]; +#endif +} + +/* + * xfs_lowbit64: get low bit set out of 64-bit argument, -1 if none set. + */ +int +xfs_lowbit64( + __uint64_t v) +{ + __uint32_t w = (__uint32_t)v; + int n = 0; + + if (w) { /* lower bits */ + n = ffs(w); + } else { /* upper bits */ + w = (__uint32_t)(v >> 32); + if (w && (n = ffs(w))) + n += 32; + } + return n - 1; +} + +/* + * xfs_highbit64: get high bit set out of 64-bit argument, -1 if none set. + */ +int +xfs_highbit64( + __uint64_t v) +{ + __uint32_t h = (__uint32_t)(v >> 32); + + if (h) + return xfs_highbit32(h) + 32; + return xfs_highbit32((__uint32_t)v); +} + + /* * Return whether bitmap is empty. * Size is number of words in the bitmap, which is padded to word boundary diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h index 0f9fc9a3c41..082641a9782 100644 --- a/fs/xfs/xfs_bit.h +++ b/fs/xfs/xfs_bit.h @@ -47,30 +47,13 @@ static inline __uint64_t xfs_mask64lo(int n) } /* Get high bit set out of 32-bit argument, -1 if none set */ -static inline int xfs_highbit32(__uint32_t v) -{ - return fls(v) - 1; -} - -/* Get high bit set out of 64-bit argument, -1 if none set */ -static inline int xfs_highbit64(__uint64_t v) -{ - return fls64(v) - 1; -} - -/* Get low bit set out of 32-bit argument, -1 if none set */ -static inline int xfs_lowbit32(__uint32_t v) -{ - unsigned long t = v; - return (v) ? find_first_bit(&t, 32) : -1; -} +extern int xfs_highbit32(__uint32_t v); /* Get low bit set out of 64-bit argument, -1 if none set */ -static inline int xfs_lowbit64(__uint64_t v) -{ - unsigned long t = v; - return (v) ? find_first_bit(&t, 64) : -1; -} +extern int xfs_lowbit64(__uint64_t v); + +/* Get high bit set out of 64-bit argument, -1 if none set */ +extern int xfs_highbit64(__uint64_t); /* Return whether bitmap is empty (1 == empty) */ extern int xfs_bitmap_empty(uint *map, uint size); diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index ca83ddf72af..47082c01872 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -72,6 +72,18 @@ STATIC int xfs_rtmodify_summary(xfs_mount_t *, xfs_trans_t *, int, * Internal functions. */ +/* + * xfs_lowbit32: get low bit set out of 32-bit argument, -1 if none set. + */ +STATIC int +xfs_lowbit32( + __uint32_t v) +{ + if (v) + return ffs(v) - 1; + return -1; +} + /* * Allocate space to the bitmap or summary file, and zero it, for growfs. */ @@ -432,7 +444,6 @@ xfs_rtallocate_extent_near( } bbno = XFS_BITTOBLOCK(mp, bno); i = 0; - ASSERT(minlen != 0); log2len = xfs_highbit32(minlen); /* * Loop over all bitmap blocks (bbno + i is current block). @@ -601,8 +612,6 @@ xfs_rtallocate_extent_size( xfs_suminfo_t sum; /* summary information for extents */ ASSERT(minlen % prod == 0 && maxlen % prod == 0); - ASSERT(maxlen != 0); - /* * Loop over all the levels starting with maxlen. * At each level, look at all the bitmap blocks, to see if there @@ -660,9 +669,6 @@ xfs_rtallocate_extent_size( *rtblock = NULLRTBLOCK; return 0; } - ASSERT(minlen != 0); - ASSERT(maxlen != 0); - /* * Loop over sizes, from maxlen down to minlen. * This time, when we do the allocations, allow smaller ones @@ -1948,7 +1954,6 @@ xfs_growfs_rt( nsbp->sb_blocksize * nsbp->sb_rextsize); nsbp->sb_rextents = nsbp->sb_rblocks; do_div(nsbp->sb_rextents, nsbp->sb_rextsize); - ASSERT(nsbp->sb_rextents != 0); nsbp->sb_rextslog = xfs_highbit32(nsbp->sb_rextents); nrsumlevels = nmp->m_rsumlevels = nsbp->sb_rextslog + 1; nrsumsize = -- GitLab From cbc34973709eb41b369c304c075cf2069f847012 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 13 Feb 2008 13:14:35 -0800 Subject: [PATCH 135/923] lguest: include function prototypes Added a declaration to asm-x86/lguest.h and moved the extern arrays there as well. As an alternative to including asm/lguest.h directly, an include could be put in linux/lguest.h Signed-off-by: Harvey Harrison Cc: "rusty@rustcorp.com.au" Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/lguest/boot.c | 10 +--------- include/asm-x86/lguest.h | 11 +++++++++++ 2 files changed, 12 insertions(+), 9 deletions(-) diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 5afdde4895d..1e613fb03e3 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -57,6 +57,7 @@ #include #include #include +#include #include #include #include @@ -75,15 +76,6 @@ * behaving in simplified but equivalent ways. In particular, the Guest is the * same kernel as the Host (or at least, built from the same source code). :*/ -/* Declarations for definitions in lguest_guest.S */ -extern char lguest_noirq_start[], lguest_noirq_end[]; -extern const char lgstart_cli[], lgend_cli[]; -extern const char lgstart_sti[], lgend_sti[]; -extern const char lgstart_popf[], lgend_popf[]; -extern const char lgstart_pushf[], lgend_pushf[]; -extern const char lgstart_iret[], lgend_iret[]; -extern void lguest_iret(void); - struct lguest_data lguest_data = { .hcall_status = { [0 ... LHCALL_RING_SIZE-1] = 0xFF }, .noirq_start = (u32)lguest_noirq_start, diff --git a/include/asm-x86/lguest.h b/include/asm-x86/lguest.h index 4d9367b7297..9b17571e9bc 100644 --- a/include/asm-x86/lguest.h +++ b/include/asm-x86/lguest.h @@ -23,6 +23,17 @@ /* Found in switcher.S */ extern unsigned long default_idt_entries[]; +/* Declarations for definitions in lguest_guest.S */ +extern char lguest_noirq_start[], lguest_noirq_end[]; +extern const char lgstart_cli[], lgend_cli[]; +extern const char lgstart_sti[], lgend_sti[]; +extern const char lgstart_popf[], lgend_popf[]; +extern const char lgstart_pushf[], lgend_pushf[]; +extern const char lgstart_iret[], lgend_iret[]; + +extern void lguest_iret(void); +extern void lguest_init(void); + struct lguest_regs { /* Manually saved part. */ -- GitLab From db342d216ba9e060d8c5501eefc1d0a789c9e711 Mon Sep 17 00:00:00 2001 From: Tony Breeds Date: Tue, 19 Feb 2008 08:16:03 +0100 Subject: [PATCH 136/923] lguest: fix build breakage [ mingo@elte.hu: merged to Rusty's patch ] Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/asm-offsets_32.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c index a33d5301799..8ea040124f7 100644 --- a/arch/x86/kernel/asm-offsets_32.c +++ b/arch/x86/kernel/asm-offsets_32.c @@ -128,13 +128,11 @@ void foo(void) OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending); #endif -#ifdef CONFIG_LGUEST_GUEST +#if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_GUEST) || defined(CONFIG_LGUEST_MODULE) BLANK(); OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled); OFFSET(LGUEST_DATA_pgdir, lguest_data, pgdir); -#endif -#ifdef CONFIG_LGUEST BLANK(); OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc); OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc); -- GitLab From 1ce70c4fac3c3954bd48c035f448793867592bc0 Mon Sep 17 00:00:00 2001 From: "Ahmed S. Darwish" Date: Sun, 24 Feb 2008 17:55:15 +0200 Subject: [PATCH 137/923] x86/lguest: fix pgdir pmd index calculation Hi all, Beginning from commits close to v2.6.25-rc2, running lguest always oopses the host kernel. Oops is at [1]. Bisection led to the following commit: commit 37cc8d7f963ba2deec29c9b68716944516a3244f x86/early_ioremap: don't assume we're using swapper_pg_dir At the early stages of boot, before the kernel pagetable has been fully initialized, a Xen kernel will still be running off the Xen-provided pagetables rather than swapper_pg_dir[]. Therefore, readback cr3 to determine the base of the pagetable rather than assuming swapper_pg_dir[]. static inline pmd_t * __init early_ioremap_pmd(unsigned long addr) { - pgd_t *pgd = &swapper_pg_dir[pgd_index(addr)]; + /* Don't assume we're using swapper_pg_dir at this point */ + pgd_t *base = __va(read_cr3()); + pgd_t *pgd = &base[pgd_index(addr)]; pud_t *pud = pud_offset(pgd, addr); pmd_t *pmd = pmd_offset(pud, addr); Trying to analyze the problem, it seems on the guest side of lguest, %cr3 has a different value from &swapper_pg-dir (which is AFAIK fine on a pravirt guest): Putting some debugging messages in early_ioremap_pmd: /* Appears 3 times */ [ 0.000000] *************************** [ 0.000000] __va(%cr3) = c0000000, &swapper_pg_dir = c02cc000 [ 0.000000] *************************** After 8 hours of debugging and staring on lguest code, I noticed something strange in paravirt_ops->set_pmd hypercall invocation: static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval) { *pmdp = pmdval; lazy_hcall(LHCALL_SET_PMD, __pa(pmdp)&PAGE_MASK, (__pa(pmdp)&(PAGE_SIZE-1))/4, 0); } The first hcall parameter is global pgdir which looks fine. The second parameter is the pmd index in the pgdir which is suspectful. AFAIK, calculating the index of pmd does not need a divisoin over four. Removing the division made lguest work fine again . Patch is at [2]. I am not sure why the division over four existed in the first place. It seems bogus, maybe the Xen patch just made the problem appear ? [2]: The patch: [PATCH] lguest: fix pgdir pmd index cacluation Remove an error in index calculation which leads to removing a not existing shadow page table (leading to a Null dereference). Signed-off-by: Ahmed S. Darwish Signed-off-by: Ingo Molnar --- arch/x86/lguest/boot.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 1e613fb03e3..cccb38a5965 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -481,7 +481,7 @@ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval) { *pmdp = pmdval; lazy_hcall(LHCALL_SET_PMD, __pa(pmdp)&PAGE_MASK, - (__pa(pmdp)&(PAGE_SIZE-1))/4, 0); + (__pa(pmdp)&(PAGE_SIZE-1)), 0); } /* There are a couple of legacy places where the kernel sets a PTE, but we -- GitLab From 92cb54a37a42a41cfb2ef7f1478bfa4395198258 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 13 Feb 2008 14:37:52 +0100 Subject: [PATCH 138/923] x86: make DEBUG_PAGEALLOC and CPA more robust Use PF_MEMALLOC to prevent recursive calls in the DBEUG_PAGEALLOC case. This makes the code simpler and more robust against allocation failures. This fixes the following fallback to non-mmconfig: http://lkml.org/lkml/2008/2/20/551 http://bugzilla.kernel.org/show_bug.cgi?id=10083 Also, for DEBUG_PAGEALLOC=n reduce the pool size to one page. Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/mm/pageattr.c | 84 +++++++++++++++++++++++++----------------- 1 file changed, 51 insertions(+), 33 deletions(-) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 464d8fc21ce..14e48b5a94b 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -44,6 +44,12 @@ static inline unsigned long highmap_end_pfn(void) #endif +#ifdef CONFIG_DEBUG_PAGEALLOC +# define debug_pagealloc 1 +#else +# define debug_pagealloc 0 +#endif + static inline int within(unsigned long addr, unsigned long start, unsigned long end) { @@ -355,45 +361,48 @@ out_unlock: static LIST_HEAD(page_pool); static unsigned long pool_size, pool_pages, pool_low; -static unsigned long pool_used, pool_failed, pool_refill; +static unsigned long pool_used, pool_failed; -static void cpa_fill_pool(void) +static void cpa_fill_pool(struct page **ret) { - struct page *p; gfp_t gfp = GFP_KERNEL; + unsigned long flags; + struct page *p; - /* Do not allocate from interrupt context */ - if (in_irq() || irqs_disabled()) - return; /* - * Check unlocked. I does not matter when we have one more - * page in the pool. The bit lock avoids recursive pool - * allocations: + * Avoid recursion (on debug-pagealloc) and also signal + * our priority to get to these pagetables: */ - if (pool_pages >= pool_size || test_and_set_bit_lock(0, &pool_refill)) + if (current->flags & PF_MEMALLOC) return; + current->flags |= PF_MEMALLOC; -#ifdef CONFIG_DEBUG_PAGEALLOC /* - * We could do: - * gfp = in_atomic() ? GFP_ATOMIC : GFP_KERNEL; - * but this fails on !PREEMPT kernels + * Allocate atomically from atomic contexts: */ - gfp = GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN; -#endif + if (in_atomic() || irqs_disabled() || debug_pagealloc) + gfp = GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN; - while (pool_pages < pool_size) { + while (pool_pages < pool_size || (ret && !*ret)) { p = alloc_pages(gfp, 0); if (!p) { pool_failed++; break; } - spin_lock_irq(&pgd_lock); + /* + * If the call site needs a page right now, provide it: + */ + if (ret && !*ret) { + *ret = p; + continue; + } + spin_lock_irqsave(&pgd_lock, flags); list_add(&p->lru, &page_pool); pool_pages++; - spin_unlock_irq(&pgd_lock); + spin_unlock_irqrestore(&pgd_lock, flags); } - clear_bit_unlock(0, &pool_refill); + + current->flags &= ~PF_MEMALLOC; } #define SHIFT_MB (20 - PAGE_SHIFT) @@ -414,11 +423,15 @@ void __init cpa_init(void) * GiB. Shift MiB to Gib and multiply the result by * POOL_PAGES_PER_GB: */ - gb = ((si.totalram >> SHIFT_MB) + ROUND_MB_GB) >> SHIFT_MB_GB; - pool_size = POOL_PAGES_PER_GB * gb; + if (debug_pagealloc) { + gb = ((si.totalram >> SHIFT_MB) + ROUND_MB_GB) >> SHIFT_MB_GB; + pool_size = POOL_PAGES_PER_GB * gb; + } else { + pool_size = 1; + } pool_low = pool_size; - cpa_fill_pool(); + cpa_fill_pool(NULL); printk(KERN_DEBUG "CPA: page pool initialized %lu of %lu pages preallocated\n", pool_pages, pool_size); @@ -440,16 +453,20 @@ static int split_large_page(pte_t *kpte, unsigned long address) spin_lock_irqsave(&pgd_lock, flags); if (list_empty(&page_pool)) { spin_unlock_irqrestore(&pgd_lock, flags); - return -ENOMEM; + base = NULL; + cpa_fill_pool(&base); + if (!base) + return -ENOMEM; + spin_lock_irqsave(&pgd_lock, flags); + } else { + base = list_first_entry(&page_pool, struct page, lru); + list_del(&base->lru); + pool_pages--; + + if (pool_pages < pool_low) + pool_low = pool_pages; } - base = list_first_entry(&page_pool, struct page, lru); - list_del(&base->lru); - pool_pages--; - - if (pool_pages < pool_low) - pool_low = pool_pages; - /* * Check for races, another CPU might have split this page * up for us already: @@ -734,7 +751,8 @@ static int change_page_attr_set_clr(unsigned long addr, int numpages, cpa_flush_all(cache); out: - cpa_fill_pool(); + cpa_fill_pool(NULL); + return ret; } @@ -897,7 +915,7 @@ void kernel_map_pages(struct page *page, int numpages, int enable) * Try to refill the page pool here. We can do this only after * the tlb flush. */ - cpa_fill_pool(); + cpa_fill_pool(NULL); } #ifdef CONFIG_HIBERNATION -- GitLab From b02a7f22f39f02fdf5a1380ff700293639db4490 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Tue, 5 Feb 2008 00:48:13 +0100 Subject: [PATCH 139/923] x86: hpet fix docbook comment Signed-off-by: Pavel Machek Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/hpet.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index 429d084e014..235fd6c7750 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -368,8 +368,8 @@ static int hpet_clocksource_register(void) return 0; } -/* - * Try to setup the HPET timer +/** + * hpet_enable - Try to setup the HPET timer. Returns 1 on success. */ int __init hpet_enable(void) { -- GitLab From a7ef94e6889186848573a10c5bdb8271405f44de Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Thu, 14 Feb 2008 14:51:00 -0800 Subject: [PATCH 140/923] x86: do not promote TM3x00/TM5x00 to i686-class We have been promoting Transmeta TM3x00/TM5x00 chips to i686-class based on the notion that they contain all the user-space visible features of an i686-class chip. However, this is not actually true: they lack the EA-taking long NOPs (0F 1F /0). Since this is a userspace-visible incompatibility, downgrade these CPUs to the manufacturer-defined i586 level. Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/cpu/transmeta.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/arch/x86/kernel/cpu/transmeta.c b/arch/x86/kernel/cpu/transmeta.c index 200fb3f9ebf..e8b422c1c51 100644 --- a/arch/x86/kernel/cpu/transmeta.c +++ b/arch/x86/kernel/cpu/transmeta.c @@ -76,13 +76,6 @@ static void __cpuinit init_transmeta(struct cpuinfo_x86 *c) /* All Transmeta CPUs have a constant TSC */ set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability); - /* If we can run i686 user-space code, call us an i686 */ -#define USER686 ((1 << X86_FEATURE_TSC)|\ - (1 << X86_FEATURE_CX8)|\ - (1 << X86_FEATURE_CMOV)) - if (c->x86 == 5 && (c->x86_capability[0] & USER686) == USER686) - c->x86 = 6; - #ifdef CONFIG_SYSCTL /* randomize_va_space slows us down enormously; it probably triggers retranslation of x86->native bytecode */ -- GitLab From 7343b3b3a627eb30e24e921f004f659c8ebb91c5 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Thu, 14 Feb 2008 14:52:05 -0800 Subject: [PATCH 141/923] x86: require family >= 6 if we are using P6 NOPs The P6 family of NOPs are only available on family >= 6 or above, so enforce that in the boot code. Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/Kconfig.cpu | 5 +++++ include/asm-x86/nops.h | 4 +--- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index e09a6b73a1a..86fd2a0e459 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -377,6 +377,10 @@ config X86_OOSTORE def_bool y depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR +config X86_P6_NOP + def_bool y + depends on (M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || PENTIUM4) + config X86_TSC def_bool y depends on ((MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ) || X86_64 @@ -390,6 +394,7 @@ config X86_CMOV config X86_MINIMUM_CPU_FAMILY int default "64" if X86_64 + default "6" if X86_32 && X86_P6_NOP default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK) default "3" diff --git a/include/asm-x86/nops.h b/include/asm-x86/nops.h index fec025c7f58..c52b334b816 100644 --- a/include/asm-x86/nops.h +++ b/include/asm-x86/nops.h @@ -63,9 +63,7 @@ #define ASM_NOP6 K7_NOP6 #define ASM_NOP7 K7_NOP7 #define ASM_NOP8 K7_NOP8 -#elif defined(CONFIG_M686) || defined(CONFIG_MPENTIUMII) || \ - defined(CONFIG_MPENTIUMIII) || defined(CONFIG_MPENTIUMM) || \ - defined(CONFIG_MCORE2) || defined(CONFIG_PENTIUM4) +#elif defined(CONFIG_X86_P6_NOP) #define ASM_NOP1 P6_NOP1 #define ASM_NOP2 P6_NOP2 #define ASM_NOP3 P6_NOP3 -- GitLab From 959b3be64cab9160cd74532a49b89cdd918d38e9 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Thu, 14 Feb 2008 14:56:45 -0800 Subject: [PATCH 142/923] x86: don't use P6_NOPs if compiling with CONFIG_X86_GENERIC P6_NOPs are definitely not supported on some VIA CPUs, and possibly (unverified) on AMD K7s. It is also the only thing that prevents a 686 kernel from running on Transmeta TM3x00/5x00 (Crusoe) series. The performance benefit over generic NOPs is very small, so when building for generic consumption, avoid using them. Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/Kconfig.cpu | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 86fd2a0e459..6d50064db18 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -377,9 +377,18 @@ config X86_OOSTORE def_bool y depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR +# +# P6_NOPs are a relatively minor optimization that require a family >= +# 6 processor, except that it is broken on certain VIA chips. +# Furthermore, AMD chips prefer a totally different sequence of NOPs +# (which work on all CPUs). As a result, disallow these if we're +# compiling X86_GENERIC but not X86_64 (these NOPs do work on all +# x86-64 capable chips); the list of processors in the right-hand clause +# are the cores that benefit from this optimization. +# config X86_P6_NOP def_bool y - depends on (M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || PENTIUM4) + depends on (X86_64 || !X86_GENERIC) && (M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || PENTIUM4) config X86_TSC def_bool y -- GitLab From 4cd20952d74323df06e438c0c3273b5be89d6bfd Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 18 Feb 2008 23:24:33 -0800 Subject: [PATCH 143/923] x86: add comments for NOPs Add comments describing the various NOP sequences. Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- include/asm-x86/nops.h | 62 ++++++++++++++++++++++++++++++------------ 1 file changed, 45 insertions(+), 17 deletions(-) diff --git a/include/asm-x86/nops.h b/include/asm-x86/nops.h index c52b334b816..e3b2bce0aff 100644 --- a/include/asm-x86/nops.h +++ b/include/asm-x86/nops.h @@ -3,17 +3,29 @@ /* Define nops for use with alternative() */ -/* generic versions from gas */ -#define GENERIC_NOP1 ".byte 0x90\n" -#define GENERIC_NOP2 ".byte 0x89,0xf6\n" -#define GENERIC_NOP3 ".byte 0x8d,0x76,0x00\n" -#define GENERIC_NOP4 ".byte 0x8d,0x74,0x26,0x00\n" -#define GENERIC_NOP5 GENERIC_NOP1 GENERIC_NOP4 -#define GENERIC_NOP6 ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00\n" -#define GENERIC_NOP7 ".byte 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00\n" -#define GENERIC_NOP8 GENERIC_NOP1 GENERIC_NOP7 +/* generic versions from gas + 1: nop + 2: movl %esi,%esi + 3: leal 0x00(%esi),%esi + 4: leal 0x00(,%esi,1),%esi + 6: leal 0x00000000(%esi),%esi + 7: leal 0x00000000(,%esi,1),%esi +*/ +#define GENERIC_NOP1 ".byte 0x90\n" +#define GENERIC_NOP2 ".byte 0x89,0xf6\n" +#define GENERIC_NOP3 ".byte 0x8d,0x76,0x00\n" +#define GENERIC_NOP4 ".byte 0x8d,0x74,0x26,0x00\n" +#define GENERIC_NOP5 GENERIC_NOP1 GENERIC_NOP4 +#define GENERIC_NOP6 ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00\n" +#define GENERIC_NOP7 ".byte 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00\n" +#define GENERIC_NOP8 GENERIC_NOP1 GENERIC_NOP7 -/* Opteron 64bit nops */ +/* Opteron 64bit nops + 1: nop + 2: osp nop + 3: osp osp nop + 4: osp osp osp nop +*/ #define K8_NOP1 GENERIC_NOP1 #define K8_NOP2 ".byte 0x66,0x90\n" #define K8_NOP3 ".byte 0x66,0x66,0x90\n" @@ -23,19 +35,35 @@ #define K8_NOP7 K8_NOP4 K8_NOP3 #define K8_NOP8 K8_NOP4 K8_NOP4 -/* K7 nops */ -/* uses eax dependencies (arbitary choice) */ -#define K7_NOP1 GENERIC_NOP1 +/* K7 nops + uses eax dependencies (arbitary choice) + 1: nop + 2: movl %eax,%eax + 3: leal (,%eax,1),%eax + 4: leal 0x00(,%eax,1),%eax + 6: leal 0x00000000(%eax),%eax + 7: leal 0x00000000(,%eax,1),%eax +*/ +#define K7_NOP1 GENERIC_NOP1 #define K7_NOP2 ".byte 0x8b,0xc0\n" #define K7_NOP3 ".byte 0x8d,0x04,0x20\n" #define K7_NOP4 ".byte 0x8d,0x44,0x20,0x00\n" #define K7_NOP5 K7_NOP4 ASM_NOP1 #define K7_NOP6 ".byte 0x8d,0x80,0,0,0,0\n" -#define K7_NOP7 ".byte 0x8D,0x04,0x05,0,0,0,0\n" -#define K7_NOP8 K7_NOP7 ASM_NOP1 +#define K7_NOP7 ".byte 0x8D,0x04,0x05,0,0,0,0\n" +#define K7_NOP8 K7_NOP7 ASM_NOP1 -/* P6 nops */ -/* uses eax dependencies (Intel-recommended choice) */ +/* P6 nops + uses eax dependencies (Intel-recommended choice) + 1: nop + 2: osp nop + 3: nopl (%eax) + 4: nopl 0x00(%eax) + 5: nopl 0x00(%eax,%eax,1) + 6: osp nopl 0x00(%eax,%eax,1) + 7: nopl 0x00000000(%eax) + 8: nopl 0x00000000(%eax,%eax,1) +*/ #define P6_NOP1 GENERIC_NOP1 #define P6_NOP2 ".byte 0x66,0x90\n" #define P6_NOP3 ".byte 0x0f,0x1f,0x00\n" -- GitLab From 829157be590af1c2555fb74c3c4db3327e3201fc Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Wed, 13 Feb 2008 11:16:46 -0800 Subject: [PATCH 144/923] x86: handle BIOSes which terminate e820 with CF=1 and no SMAP The proper way to terminate the e820 chain is with %ebx == 0 on the last legitimate memory block. However, several BIOSes don't do that and instead return error (CF = 1) when trying to read off the end of the list. For this error return, %eax doesn't necessarily return the SMAP signature -- correctly so, since %ah should contain an error code in this case. To deal with some particularly broken BIOSes, we clear the entire e820 chain if the SMAP signature is missing in the middle, indicating a plain insane e820 implementation. However, we need to make the test for CF = 1 before the SMAP check. This fixes at least one HP laptop (nc6400) for which none of the memory-probing methods (e820, e801, 88) functioned fully according to spec. Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/boot/memory.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c index 378353956b5..e77d89f9e8a 100644 --- a/arch/x86/boot/memory.c +++ b/arch/x86/boot/memory.c @@ -37,6 +37,12 @@ static int detect_memory_e820(void) "=m" (*desc) : "D" (desc), "d" (SMAP), "a" (0xe820)); + /* BIOSes which terminate the chain with CF = 1 as opposed + to %ebx = 0 don't always report the SMAP signature on + the final, failing, probe. */ + if (err) + break; + /* Some BIOSes stop returning SMAP in the middle of the search loop. We don't know exactly how the BIOS screwed up the map at that point, we might have a @@ -47,9 +53,6 @@ static int detect_memory_e820(void) break; } - if (err) - break; - count++; desc++; } while (next && count < E820MAX); -- GitLab From f5106d91f2bf9153d6420f9ebb8114f73f9ce66a Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 18 Feb 2008 13:10:44 -0800 Subject: [PATCH 145/923] x86/mtrr: fix kernel-doc missing notation Fix mtrr kernel-doc warning: Warning(linux-2.6.24-git12//arch/x86/kernel/cpu/mtrr/main.c:677): No description found for parameter 'end_pfn' Signed-off-by: Randy Dunlap Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mtrr/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c index b6e136f23d3..c8fda3eb3d7 100644 --- a/arch/x86/kernel/cpu/mtrr/main.c +++ b/arch/x86/kernel/cpu/mtrr/main.c @@ -649,6 +649,7 @@ static __init int amd_special_default_mtrr(void) /** * mtrr_trim_uncached_memory - trim RAM not covered by MTRRs + * @end_pfn: ending page frame number * * Some buggy BIOSes don't setup the MTRRs properly for systems with certain * memory configurations. This routine checks that the highest MTRR matches -- GitLab From 7265b6f10deba1cbe071cee646b063bda07ecd68 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Tue, 19 Feb 2008 11:02:30 +0100 Subject: [PATCH 146/923] x86: notsc is ignored on common configurations notsc is ignored in 32-bit kernels if CONFIG_X86_TSC is on.. which is bad, fix it. Signed-off-by: Pavel Machek Signed-off-by: Ingo Molnar --- arch/x86/kernel/tsc_32.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/tsc_32.c b/arch/x86/kernel/tsc_32.c index 43517e324be..f14cfd9d1f9 100644 --- a/arch/x86/kernel/tsc_32.c +++ b/arch/x86/kernel/tsc_32.c @@ -28,7 +28,8 @@ EXPORT_SYMBOL_GPL(tsc_khz); static int __init tsc_setup(char *str) { printk(KERN_WARNING "notsc: Kernel compiled with CONFIG_X86_TSC, " - "cannot disable TSC.\n"); + "cannot disable TSC completely.\n"); + mark_tsc_unstable("user disabled TSC"); return 1; } #else -- GitLab From 3b57bc461fd5019aef4cfc77d4faf56ebe95449c Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 20 Feb 2008 18:53:17 -0800 Subject: [PATCH 147/923] x86: remove double-checking empty zero pages debug so far no one complained about that. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/mm/init_64.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index bb652f5a93f..6dbb0035c57 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -515,14 +515,6 @@ void __init mem_init(void) /* clear_bss() already clear the empty_zero_page */ - /* temporary debugging - double check it's true: */ - { - int i; - - for (i = 0; i < 1024; i++) - WARN_ON_ONCE(empty_zero_page[i]); - } - reservedpages = 0; /* this will put all low memory onto the freelists */ -- GitLab From 88f3aec7afd9ae3e6f6d221801996b69aad1e3a4 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 21 Feb 2008 11:04:11 +0100 Subject: [PATCH 148/923] x86: fix spontaneous reboot with allyesconfig bzImage recently the 64-bit allyesconfig bzImage kernel started spontaneously rebooting during early bootup. after a few fun hours spent with early init debugging, it turns out that we've got this rather annoying limit on the size of the kernel image: #define KERNEL_TEXT_SIZE (40*1024*1024) which limit my vmlinux just happened to pass: text data bss dec hex filename 29703744 4222751 8646224 42572719 2899baf vmlinux 40 MB is 42572719 bytes, so my vmlinux was just 1.5% above this limit :-/ So it happily crashed right in head_64.S, which - as we all know - is the most debuggable code in the whole architecture ;-) So increase the limit to allow an up to 128MB kernel image to be mapped. (should anyone be that crazy or lazy) We have a full 4K of pagetable (level2_kernel_pgt) allocated for these mappings already, so there's no RAM overhead and the limit was rather pointless and arbitrary. Signed-off-by: Ingo Molnar --- arch/x86/kernel/head_64.S | 22 ++++++++++++++-------- arch/x86/mm/init_64.c | 5 +++-- include/asm-x86/page_64.h | 8 ++++++-- 3 files changed, 23 insertions(+), 12 deletions(-) diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index eb415043a92..b037b15be7f 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -379,18 +379,24 @@ NEXT_PAGE(level2_ident_pgt) /* Since I easily can, map the first 1G. * Don't set NX because code runs from these pages. */ - PMDS(0x0000000000000000, __PAGE_KERNEL_LARGE_EXEC, PTRS_PER_PMD) + PMDS(0, __PAGE_KERNEL_LARGE_EXEC, PTRS_PER_PMD) NEXT_PAGE(level2_kernel_pgt) - /* 40MB kernel mapping. The kernel code cannot be bigger than that. - When you change this change KERNEL_TEXT_SIZE in page.h too. */ - /* (2^48-(2*1024*1024*1024)-((2^39)*511)-((2^30)*510)) = 0 */ - PMDS(0x0000000000000000, __PAGE_KERNEL_LARGE_EXEC|_PAGE_GLOBAL, KERNEL_TEXT_SIZE/PMD_SIZE) - /* Module mapping starts here */ - .fill (PTRS_PER_PMD - (KERNEL_TEXT_SIZE/PMD_SIZE)),8,0 + /* + * 128 MB kernel mapping. We spend a full page on this pagetable + * anyway. + * + * The kernel code+data+bss must not be bigger than that. + * + * (NOTE: at +128MB starts the module area, see MODULES_VADDR. + * If you want to increase this then increase MODULES_VADDR + * too.) + */ + PMDS(0, __PAGE_KERNEL_LARGE_EXEC|_PAGE_GLOBAL, + KERNEL_TEXT_SIZE/PMD_SIZE) NEXT_PAGE(level2_spare_pgt) - .fill 512,8,0 + .fill 512, 8, 0 #undef PMDS #undef NEXT_PAGE diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 6dbb0035c57..a02a14f0f32 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -172,8 +172,9 @@ set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot) } /* - * The head.S code sets up the kernel high mapping from: - * __START_KERNEL_map to __START_KERNEL_map + KERNEL_TEXT_SIZE + * The head.S code sets up the kernel high mapping: + * + * from __START_KERNEL_map to __START_KERNEL_map + size (== _end-_text) * * phys_addr holds the negative offset to the kernel, which is added * to the compile time generated pmds. This results in invalid pmds up diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h index f7393bc516e..3e2e3ca6304 100644 --- a/include/asm-x86/page_64.h +++ b/include/asm-x86/page_64.h @@ -47,8 +47,12 @@ #define __PHYSICAL_MASK_SHIFT 46 #define __VIRTUAL_MASK_SHIFT 48 -#define KERNEL_TEXT_SIZE (40*1024*1024) -#define KERNEL_TEXT_START _AC(0xffffffff80000000, UL) +/* + * Kernel image size is limited to 128 MB (see level2_kernel_pgt in + * arch/x86/kernel/head_64.S), and it is mapped here: + */ +#define KERNEL_TEXT_SIZE (128*1024*1024) +#define KERNEL_TEXT_START _AC(0xffffffff80000000, UL) #ifndef __ASSEMBLY__ void clear_page(void *page); -- GitLab From d4afe414189b098d56bcd24280c018aa2ac9a990 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 21 Feb 2008 13:39:30 +0100 Subject: [PATCH 149/923] x86: rename KERNEL_TEXT_SIZE => KERNEL_IMAGE_SIZE The KERNEL_TEXT_SIZE constant was mis-named, as we not only map the kernel text but data, bss and init sections as well. That name led me on the wrong path with the KERNEL_TEXT_SIZE regression, because i knew how big of _text_ my images have and i knew about the 40 MB "text" limit so i wrongly thought to be on the safe side of the 40 MB limit with my 29 MB of text, while the total image size was slightly above 40 MB. Signed-off-by: Ingo Molnar --- arch/x86/kernel/head_64.S | 2 +- include/asm-x86/page_64.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index b037b15be7f..a007454133a 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -393,7 +393,7 @@ NEXT_PAGE(level2_kernel_pgt) * too.) */ PMDS(0, __PAGE_KERNEL_LARGE_EXEC|_PAGE_GLOBAL, - KERNEL_TEXT_SIZE/PMD_SIZE) + KERNEL_IMAGE_SIZE/PMD_SIZE) NEXT_PAGE(level2_spare_pgt) .fill 512, 8, 0 diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h index 3e2e3ca6304..143546073b9 100644 --- a/include/asm-x86/page_64.h +++ b/include/asm-x86/page_64.h @@ -51,8 +51,8 @@ * Kernel image size is limited to 128 MB (see level2_kernel_pgt in * arch/x86/kernel/head_64.S), and it is mapped here: */ -#define KERNEL_TEXT_SIZE (128*1024*1024) -#define KERNEL_TEXT_START _AC(0xffffffff80000000, UL) +#define KERNEL_IMAGE_SIZE (128*1024*1024) +#define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL) #ifndef __ASSEMBLY__ void clear_page(void *page); -- GitLab From ce28b9864b853803320c3f1d8de1b81aa4120b14 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 20 Feb 2008 23:57:30 +0100 Subject: [PATCH 150/923] x86: fix vsyscall wreckage based on a report from Arne Georg Gleditsch about user-space apps misbehaving after toggling /proc/sys/kernel/vsyscall64, a review of the code revealed that the "NOP patching" done there is fundamentally unsafe for a number of reasons: 1) the patching code runs without synchronizing other CPUs 2) it inserts NOPs even if there is no clock source which provides vread 3) when the clock source changes to one without vread we run in exactly the same problem as in #2 4) if nobody toggles the proc entry from 1 to 0 and to 1 again, then the syscall is not patched out as a result it is possible to break user-space via this patching. The only safe thing for now is to remove the patching. This code was broken since v2.6.21. Reported-by: Arne Georg Gleditsch Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86/kernel/vsyscall_64.c | 52 ++--------------------------------- 1 file changed, 3 insertions(+), 49 deletions(-) diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c index 3f824277458..b6be812fac0 100644 --- a/arch/x86/kernel/vsyscall_64.c +++ b/arch/x86/kernel/vsyscall_64.c @@ -44,11 +44,6 @@ #define __vsyscall(nr) __attribute__ ((unused,__section__(".vsyscall_" #nr))) #define __syscall_clobber "r11","cx","memory" -#define __pa_vsymbol(x) \ - ({unsigned long v; \ - extern char __vsyscall_0; \ - asm("" : "=r" (v) : "0" (x)); \ - ((v - VSYSCALL_START) + __pa_symbol(&__vsyscall_0)); }) /* * vsyscall_gtod_data contains data that is : @@ -102,7 +97,7 @@ static __always_inline void do_get_tz(struct timezone * tz) static __always_inline int gettimeofday(struct timeval *tv, struct timezone *tz) { int ret; - asm volatile("vsysc2: syscall" + asm volatile("syscall" : "=a" (ret) : "0" (__NR_gettimeofday),"D" (tv),"S" (tz) : __syscall_clobber ); @@ -112,7 +107,7 @@ static __always_inline int gettimeofday(struct timeval *tv, struct timezone *tz) static __always_inline long time_syscall(long *t) { long secs; - asm volatile("vsysc1: syscall" + asm volatile("syscall" : "=a" (secs) : "0" (__NR_time),"D" (t) : __syscall_clobber); return secs; @@ -227,50 +222,10 @@ long __vsyscall(3) venosys_1(void) } #ifdef CONFIG_SYSCTL - -#define SYSCALL 0x050f -#define NOP2 0x9090 - -/* - * NOP out syscall in vsyscall page when not needed. - */ -static int vsyscall_sysctl_change(ctl_table *ctl, int write, struct file * filp, - void __user *buffer, size_t *lenp, loff_t *ppos) -{ - extern u16 vsysc1, vsysc2; - u16 __iomem *map1; - u16 __iomem *map2; - int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos); - if (!write) - return ret; - /* gcc has some trouble with __va(__pa()), so just do it this - way. */ - map1 = ioremap(__pa_vsymbol(&vsysc1), 2); - if (!map1) - return -ENOMEM; - map2 = ioremap(__pa_vsymbol(&vsysc2), 2); - if (!map2) { - ret = -ENOMEM; - goto out; - } - if (!vsyscall_gtod_data.sysctl_enabled) { - writew(SYSCALL, map1); - writew(SYSCALL, map2); - } else { - writew(NOP2, map1); - writew(NOP2, map2); - } - iounmap(map2); -out: - iounmap(map1); - return ret; -} - static ctl_table kernel_table2[] = { { .procname = "vsyscall64", .data = &vsyscall_gtod_data.sysctl_enabled, .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = vsyscall_sysctl_change }, + .mode = 0644 }, {} }; @@ -279,7 +234,6 @@ static ctl_table kernel_root_table2[] = { .child = kernel_table2 }, {} }; - #endif /* Assume __initcall executes before all user space. Hopefully kmod -- GitLab From 5d119b2c9a490e2d647eae134211b32a18a04c7d Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 26 Feb 2008 12:55:57 +0100 Subject: [PATCH 151/923] x86: fix execve with -fstack-protect pointed out by pageexec@freemail.hu: > what happens here is that gcc treats the argument area as owned by the > callee, not the caller and is allowed to do certain tricks. for ssp it > will make a copy of the struct passed by value into the local variable > area and pass *its* address down, and it won't copy it back into the > original instance stored in the argument area. > > so once sys_execve returns, the pt_regs passed by value hasn't at all > changed and its default content will cause a nice double fault (FWIW, > this part took me the longest to debug, being down with cold didn't > help it either ;). To fix this we pass in pt_regs by pointer. Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/entry_64.S | 6 ++++-- arch/x86/kernel/process_64.c | 6 +++--- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 2ad9a1bc6a7..c20c9e7e08d 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -453,6 +453,7 @@ ENTRY(stub_execve) CFI_REGISTER rip, r11 SAVE_REST FIXUP_TOP_OF_STACK %r11 + movq %rsp, %rcx call sys_execve RESTORE_TOP_OF_STACK %r11 movq %rax,RAX(%rsp) @@ -1036,15 +1037,16 @@ ENDPROC(child_rip) * rdi: name, rsi: argv, rdx: envp * * We want to fallback into: - * extern long sys_execve(char *name, char **argv,char **envp, struct pt_regs regs) + * extern long sys_execve(char *name, char **argv,char **envp, struct pt_regs *regs) * * do_sys_execve asm fallback arguments: - * rdi: name, rsi: argv, rdx: envp, fake frame on the stack + * rdi: name, rsi: argv, rdx: envp, rcx: fake frame on the stack */ ENTRY(kernel_execve) CFI_STARTPROC FAKE_STACK_FRAME $0 SAVE_ALL + movq %rsp,%rcx call sys_execve movq %rax, RAX(%rsp) RESTORE_REST diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index b0cc8f0136d..43f287744f9 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -730,16 +730,16 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) */ asmlinkage long sys_execve(char __user *name, char __user * __user *argv, - char __user * __user *envp, struct pt_regs regs) + char __user * __user *envp, struct pt_regs *regs) { long error; char * filename; filename = getname(name); error = PTR_ERR(filename); - if (IS_ERR(filename)) + if (IS_ERR(filename)) return error; - error = do_execve(filename, argv, envp, ®s); + error = do_execve(filename, argv, envp, regs); putname(filename); return error; } -- GitLab From 4147c8747eace9058c606b35e700060297edaf91 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 21 Feb 2008 15:50:14 +0100 Subject: [PATCH 152/923] x86: don't print a warning when MTRR are blank and running in KVM Inside a KVM virtual machine the MTRRs are usually blank. This confuses Linux and causes a warning message at boot. This patch removes that warning message when running Linux as a KVM guest. Signed-off-by: Joerg Roedel Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mtrr/main.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c index c8fda3eb3d7..be83336fddb 100644 --- a/arch/x86/kernel/cpu/mtrr/main.c +++ b/arch/x86/kernel/cpu/mtrr/main.c @@ -43,6 +43,7 @@ #include #include #include +#include #include "mtrr.h" u32 num_var_ranges = 0; @@ -689,8 +690,11 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn) /* kvm/qemu doesn't have mtrr set right, don't trim them all */ if (!highest_pfn) { - printk(KERN_WARNING "WARNING: strange, CPU MTRRs all blank?\n"); - WARN_ON(1); + if (!kvm_para_available()) { + printk(KERN_WARNING + "WARNING: strange, CPU MTRRs all blank?\n"); + WARN_ON(1); + } return 0; } -- GitLab From ed2b7e2b1d1ae201afe8fbd111632074b7b53ed4 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Fri, 22 Feb 2008 21:58:37 +0200 Subject: [PATCH 153/923] x86: don't make swapper_pg_pmd global There doesn't seem to be any reason for swapper_pg_pmd being global. Signed-off-by: Adrian Bunk Signed-off-by: Ingo Molnar --- arch/x86/kernel/head_32.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 25eb98540a4..fd8ca53943a 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -606,7 +606,7 @@ ENTRY(_stext) .section ".bss.page_aligned","wa" .align PAGE_SIZE_asm #ifdef CONFIG_X86_PAE -ENTRY(swapper_pg_pmd) +swapper_pg_pmd: .fill 1024*KPMDS,4,0 #else ENTRY(swapper_pg_dir) -- GitLab From 1650743cdc0db73478f72c57544ce79ea8f3dda6 Mon Sep 17 00:00:00 2001 From: Vegard Nossum Date: Fri, 22 Feb 2008 19:23:58 +0100 Subject: [PATCH 154/923] x86: don't save unreliable stack trace entries Currently, there is no way for print_stack_trace() to determine whether a given stack trace entry was deemed reliable or not, simply because save_stack_trace() does not record this information. (Perhaps needless to say, this makes the saved stack traces A LOT harder to read, and probably with no other benefits, since debugging features that use save_stack_trace() most likely also require frame pointers, etc.) This patch reverts to the old behaviour of only recording the reliable trace entries for saved stack traces. Signed-off-by: Vegard Nossum Acked-by: Arjan van de Ven Signed-off-by: Ingo Molnar --- arch/x86/kernel/stacktrace.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c index 02f0f61f5b1..c28c342c162 100644 --- a/arch/x86/kernel/stacktrace.c +++ b/arch/x86/kernel/stacktrace.c @@ -25,6 +25,8 @@ static int save_stack_stack(void *data, char *name) static void save_stack_address(void *data, unsigned long addr, int reliable) { struct stack_trace *trace = data; + if (!reliable) + return; if (trace->skip > 0) { trace->skip--; return; @@ -37,6 +39,8 @@ static void save_stack_address_nosched(void *data, unsigned long addr, int reliable) { struct stack_trace *trace = (struct stack_trace *)data; + if (!reliable) + return; if (in_sched_functions(addr)) return; if (trace->skip > 0) { -- GitLab From 2b775a27c0d9fdf8078d5b31e1e27411e5bf2a91 Mon Sep 17 00:00:00 2001 From: Glauber Costa Date: Fri, 22 Feb 2008 12:09:29 -0300 Subject: [PATCH 155/923] x86: make c_idle.work have a static address. Currently, c_idle is declared in the stack, and thus, have no static address. Peter Zijlstra points out this simple solution, in which c_idle.work is initializated separatedly. Note that the INIT_WORK macro has a static declaration of a key inside. Signed-off-by: Glauber Costa Acked-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- arch/x86/kernel/smpboot_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c index d53bd6fcb42..0880f2c388a 100644 --- a/arch/x86/kernel/smpboot_64.c +++ b/arch/x86/kernel/smpboot_64.c @@ -554,10 +554,10 @@ static int __cpuinit do_boot_cpu(int cpu, int apicid) int timeout; unsigned long start_rip; struct create_idle c_idle = { - .work = __WORK_INITIALIZER(c_idle.work, do_fork_idle), .cpu = cpu, .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done), }; + INIT_WORK(&c_idle.work, do_fork_idle); /* allocate memory for gdts of secondary cpus. Hotplug is considered */ if (!cpu_gdt_descr[cpu].address && -- GitLab From 03994f01e8b72b3d01fd3d09d1cc7c9f421a727c Mon Sep 17 00:00:00 2001 From: Priit Laes Date: Sun, 24 Feb 2008 18:36:05 +0200 Subject: [PATCH 156/923] x86: fix build on non-C locales. For some locales regex range [a-zA-Z] does not work as it is supposed to. so we have to use [:alnum:] and [:xdigit:] to make it work as intended. [1] http://en.wikipedia.org/wiki/Estonian_alphabet Signed-off-by: Ingo Molnar --- arch/x86/vdso/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile index f385a4b4a48..b8bd0c4aa02 100644 --- a/arch/x86/vdso/Makefile +++ b/arch/x86/vdso/Makefile @@ -48,7 +48,7 @@ obj-$(VDSO64-y) += vdso-syms.lds # Match symbols in the DSO that look like VDSO*; produce a file of constants. # sed-vdsosym := -e 's/^00*/0/' \ - -e 's/^\([0-9a-fA-F]*\) . \(VDSO[a-zA-Z0-9_]*\)$$/\2 = 0x\1;/p' + -e 's/^\([[:xdigit:]]*\) . \(VDSO[[:alnum:]_]*\)$$/\2 = 0x\1;/p' quiet_cmd_vdsosym = VDSOSYM $@ cmd_vdsosym = $(NM) $< | sed -n $(sed-vdsosym) | LC_ALL=C sort > $@ -- GitLab From 12c247a6719987aad65f83158d2bb3e73c75c1f5 Mon Sep 17 00:00:00 2001 From: Mikael Pettersson Date: Sun, 24 Feb 2008 18:27:03 +0100 Subject: [PATCH 157/923] x86: fix boot failure on 486 due to TSC breakage > Diffing dmesg between git7 and git8 doesn't sched any light since > git8 also removed the printouts of the x86 caps as they were being > initialised and updated. I'm currently adding those printouts back > in the hope of seeing where and when the caps get broken. That turned out to be very illuminating: --- dmesg-2.6.24-git7 2008-02-24 18:01:25.295851000 +0100 +++ dmesg-2.6.24-git8 2008-02-24 18:01:25.530358000 +0100 ... CPU: After generic identify, caps: 00000003 00000000 00000000 00000000 00000000 00000000 00000000 00000000 CPU: After all inits, caps: 00000003 00000000 00000000 00000000 00000000 00000000 00000000 00000000 +CPU: After applying cleared_cpu_caps, caps: 00000013 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Notice how the TSC cap bit goes from Off to On. (The first two lines are printout loops from -git7 forward-ported to -git8, the third line is the same printout loop added just after the xor-with-cleared_cpu_caps[] loop.) Here's how the breakage occurs: 1. arch/x86/kernel/tsc_32.c:tsc_init() sees !cpu_has_tsc, so bails and calls setup_clear_cpu_cap(X86_FEATURE_TSC). 2. include/asm-x86/cpufeature.h:setup_clear_cpu_cap(bit) clears the bit in boot_cpu_data and sets it in cleared_cpu_caps 3. arch/x86/kernel/cpu/common.c:identify_cpu() XORs all caps in with cleared_cpu_caps HOWEVER, at this point c->x86_capability correctly has TSC Off, cleared_cpu_caps has TSC On, so the XOR incorrectly sets TSC to On in c->x86_capability, with disastrous results. The real bug is that clearing bits with XOR only works if the bits are known to be 1 prior to the XOR, and that's not true here. A simple fix is to convert the XOR to AND-NOT instead. The following patch does that, and allows my 486 to boot 2.6.25-rc kernels again. [ mingo@elte.hu: fixed a similar bug in setup_64.c as well. ] The breakage was introduced via commit 7d851c8d3db0. Signed-off-by: Mikael Pettersson Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/common.c | 2 +- arch/x86/kernel/setup_64.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index f86a3c4a266..a38aafaefc2 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -504,7 +504,7 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c) /* Clear all flags overriden by options */ for (i = 0; i < NCAPINTS; i++) - c->x86_capability[i] ^= cleared_cpu_caps[i]; + c->x86_capability[i] &= ~cleared_cpu_caps[i]; /* Init Machine Check Exception if available. */ mcheck_init(c); diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index 6fd804f0782..7637dc91c79 100644 --- a/arch/x86/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c @@ -1021,7 +1021,7 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c) /* Clear all flags overriden by options */ for (i = 0; i < NCAPINTS; i++) - c->x86_capability[i] ^= cleared_cpu_caps[i]; + c->x86_capability[i] &= ~cleared_cpu_caps[i]; #ifdef CONFIG_X86_MCE mcheck_init(c); -- GitLab From f18edc95a37a901ffcbe91f5e05105f916a04fae Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 16 Feb 2008 14:05:01 +0100 Subject: [PATCH 158/923] x86: no robust/pi futex for real i386 CPUs Real i386 CPUs do not have cmpxchg instructions. Catch it before crashing on an invalid opcode. Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- include/asm-x86/futex.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/asm-x86/futex.h b/include/asm-x86/futex.h index cd9f894dd2d..c9952ea9f69 100644 --- a/include/asm-x86/futex.h +++ b/include/asm-x86/futex.h @@ -102,6 +102,13 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr) static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) { + +#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_BSWAP) + /* Real i386 machines have no cmpxchg instruction */ + if (boot_cpu_data.x86 == 3) + return -ENOSYS; +#endif + if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) return -EFAULT; -- GitLab From cf3680b90c7842cf91ed857ac4528f4e057da366 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 14 Feb 2008 10:32:07 +0900 Subject: [PATCH 159/923] printk: fix possible printk overrun printk recursion detection prepends message to printk_buf and offsets printk_buf when actual message is printed but it forgets to trim buffer length accordingly. This can result in overrun in extreme cases. Fix it. [ mingo@elte.hu: bug was introduced by me via: commit 32a76006683f7b28ae3cc491da37716e002f198e Author: Ingo Molnar Date: Fri Jan 25 21:07:58 2008 +0100 printk: make printk more robust by not allowing recursion ] Signed-off-by: Tejun Heo Signed-off-by: Ingo Molnar Signed-off-by: Linus Torvalds --- kernel/printk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/printk.c b/kernel/printk.c index bee36100f11..9adc2a473e6 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -666,7 +666,7 @@ asmlinkage int vprintk(const char *fmt, va_list args) } /* Emit the output into the temporary buffer */ printed_len += vscnprintf(printk_buf + printed_len, - sizeof(printk_buf), fmt, args); + sizeof(printk_buf) - printed_len, fmt, args); /* * Copy the output into log_buf. If the caller didn't provide -- GitLab From acbe44e6274e88a14a68df511d87890846a9bc99 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Tue, 26 Feb 2008 21:50:32 +0100 Subject: [PATCH 160/923] ide-cd: Enable audio play quirk for Optiarc DVD RW AD-5200A drive Reported-by: Stefan Bader Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-cd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 310e497b583..022a029f81c 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1931,6 +1931,7 @@ static const struct cd_list_entry ide_cd_quirks_list[] = { { "MATSHITADVD-ROM SR-8186", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK }, { "MATSHITADVD-ROM SR-8176", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK }, { "MATSHITADVD-ROM SR-8174", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK }, + { "Optiarc DVD RW AD-5200A", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK }, { NULL, NULL, 0 } }; -- GitLab From b66cae7672996c1ed0c4c4a4df04ce7b275c61f6 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Tue, 26 Feb 2008 21:50:33 +0100 Subject: [PATCH 161/923] hpt366: fix section mismatch warnings hpt366: fix section mismatch warnings Fix following warnings: WARNING: o-sparc64/vmlinux.o(.data+0x195a38): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt370 WARNING: o-sparc64/vmlinux.o(.data+0x195a40): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt370a WARNING: o-sparc64/vmlinux.o(.data+0x195a48): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt372 WARNING: o-sparc64/vmlinux.o(.data+0x195a50): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt372n Replace a static array with a small switch resulting in more readable code. Mark the pci table __devinitconst. A lot of variables are const but annotated __devinitdata. Annotating them __devinitconst would cause a section type conflict error when build for 64 bit powerpc. Signed-off-by: Sam Ravnborg Cc: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/hpt366.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index d0f7bb8b8ad..6357bb6269a 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -1570,10 +1570,12 @@ static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_devic if (rev < 3) info = &hpt36x; else { - static const struct hpt_info *hpt37x_info[] = - { &hpt370, &hpt370a, &hpt372, &hpt372n }; - - info = hpt37x_info[min_t(u8, rev, 6) - 3]; + switch (min_t(u8, rev, 6)) { + case 3: info = &hpt370; break; + case 4: info = &hpt370a; break; + case 5: info = &hpt372; break; + case 6: info = &hpt372n; break; + } idx++; } break; @@ -1626,7 +1628,7 @@ static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_devic return ide_setup_pci_device(dev, &d); } -static const struct pci_device_id hpt366_pci_tbl[] = { +static const struct pci_device_id hpt366_pci_tbl[] __devinitconst = { { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), 0 }, { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), 1 }, { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), 2 }, -- GitLab From cbd34d00af2960097ebd46a31dabc8bb9f16ea4e Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 26 Feb 2008 21:50:33 +0100 Subject: [PATCH 162/923] ide: remove redundant comment from ide_unregister() Identical comment is present in ide_hwif_release_regions() documentation. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 477833f0daf..784d60e376e 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -590,11 +590,6 @@ void ide_unregister(unsigned int index, int init_default, int restore) hwif->extra_ports = 0; } - /* - * Note that we only release the standard ports, - * and do not even try to handle any extra ports - * allocated for weird IDE interface chipsets. - */ ide_hwif_release_regions(hwif); /* copy original settings */ -- GitLab From c53ea18dc29a1ac075119f651d6ac4386a549a34 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 26 Feb 2008 21:50:34 +0100 Subject: [PATCH 163/923] ide: skip probing port if "hdx=noprobe" was used for both devices on it * Skip probing port if "hdx=noprobe" parameter was used for both devices on it. * Obsolete "idex=noprobe" parameter - it only works for ide_generic, cmd640 and PCI hosts in Compatibility mode (on alpha/x86/ia64/m32r/mips/ppc32). Signed-off-by: Bartlomiej Zolnierkiewicz --- Documentation/ide.txt | 2 -- drivers/ide/ide-probe.c | 3 ++- drivers/ide/ide.c | 2 +- drivers/ide/pci/cmd640.c | 3 ++- 4 files changed, 5 insertions(+), 5 deletions(-) diff --git a/Documentation/ide.txt b/Documentation/ide.txt index 94e2e3b9e77..7b782e84001 100644 --- a/Documentation/ide.txt +++ b/Documentation/ide.txt @@ -258,8 +258,6 @@ Summary of ide driver parameters for kernel command line As for VLB, it is safest to not specify it. Bigger values are safer than smaller ones. - "idex=noprobe" : do not attempt to access/use this interface - "idex=base" : probe for an interface at the addr specified, where "base" is usually 0x1f0 or 0x170 and "ctl" is assumed to be "base"+0x206 diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 4a2cb286822..194ecb0049e 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -756,7 +756,8 @@ static int ide_probe_port(ide_hwif_t *hwif) BUG_ON(hwif->present); - if (hwif->noprobe) + if (hwif->noprobe || + (hwif->drives[0].noprobe && hwif->drives[1].noprobe)) return -EACCES; /* diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 784d60e376e..30053669762 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -1444,7 +1444,7 @@ static int __init ide_setup(char *s) case -1: /* "noprobe" */ hwif->noprobe = 1; - goto done; + goto obsolete_option; case 1: /* base */ vals[1] = vals[0] + 0x206; /* default ctl */ diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c index bd24dad3cfc..ec667982809 100644 --- a/drivers/ide/pci/cmd640.c +++ b/drivers/ide/pci/cmd640.c @@ -787,7 +787,8 @@ static int __init cmd640x_init(void) /* * Try to enable the secondary interface, if not already enabled */ - if (cmd_hwif1->noprobe) { + if (cmd_hwif1->noprobe || + (cmd_hwif1->drives[0].noprobe && cmd_hwif1->drives[1].noprobe)) { port2 = "not probed"; } else { b = get_cmd640_reg(CNTRL); -- GitLab From 788d669736dd3d15195fea07bf97ec5a2e9f15e7 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 26 Feb 2008 21:50:35 +0100 Subject: [PATCH 164/923] qd65xx: fix setup of QD6580 Control register Control register of QD6580 should be setup before probing for devices. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/legacy/qd65xx.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c index bba29df5f21..1ec0e970f57 100644 --- a/drivers/ide/legacy/qd65xx.c +++ b/drivers/ide/legacy/qd65xx.c @@ -444,6 +444,8 @@ static int __init qd_probe(int base) printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n", config, control, QD_ID3); + outb(QD_DEF_CONTR, QD_CONTROL_PORT); + if (control & QD_CONTR_SEC_DISABLED) { /* secondary disabled */ @@ -460,8 +462,6 @@ static int __init qd_probe(int base) ide_device_add(idx, &qd65xx_port_info); - outb(QD_DEF_CONTR, QD_CONTROL_PORT); - return 1; } else { ide_hwif_t *mate; @@ -487,8 +487,6 @@ static int __init qd_probe(int base) ide_device_add(idx, &qd65xx_port_info); - outb(QD_DEF_CONTR, QD_CONTROL_PORT); - return 0; /* no other qd65xx possible */ } } -- GitLab From 9f10d9ee0ac6d79d7bc8b9a158bf4a29322d84d3 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 26 Feb 2008 21:50:35 +0100 Subject: [PATCH 165/923] ide-cd: fix 'ireason' handling for REQ_TYPE_ATA_PC requests Pass 'struct request *rq' to ide_cd_check_ireason() from cdrom_newpc_intr() and use ide_cd_check_ireason() also for REQ_TYPE_ATA_PC requests. This fixes some hangs caused by not finishing the transfer before ending the request and also makes use of 'ireason == 1' quirk for spurious IRQs. Tested-by: Brad Rosser Cc: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-cd.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-) diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 022a029f81c..1495fe7a6ec 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -670,8 +670,8 @@ static void cdrom_buffer_sectors (ide_drive_t *drive, unsigned long sector, * and attempt to recover if there are problems. Returns 0 if everything's * ok; nonzero if the request has been terminated. */ -static -int ide_cd_check_ireason(ide_drive_t *drive, int len, int ireason, int rw) +static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, + int len, int ireason, int rw) { /* * ireason == 0: the drive wants to receive data from us @@ -701,6 +701,9 @@ int ide_cd_check_ireason(ide_drive_t *drive, int len, int ireason, int rw) drive->name, __FUNCTION__, ireason); } + if (rq->cmd_type == REQ_TYPE_ATA_PC) + rq->cmd_flags |= REQ_FAILED; + cdrom_end_request(drive, 0); return -1; } @@ -1071,11 +1074,11 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) /* * check which way to transfer data */ - if (blk_fs_request(rq) || blk_pc_request(rq)) { - if (ide_cd_check_ireason(drive, len, ireason, write)) - return ide_stopped; + if (ide_cd_check_ireason(drive, rq, len, ireason, write)) + return ide_stopped; - if (blk_fs_request(rq) && write == 0) { + if (blk_fs_request(rq)) { + if (write == 0) { int nskip; if (ide_cd_check_transfer_size(drive, len)) { @@ -1101,16 +1104,9 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) if (ireason == 0) { write = 1; xferfunc = HWIF(drive)->atapi_output_bytes; - } else if (ireason == 2 || (ireason == 1 && - (blk_fs_request(rq) || blk_pc_request(rq)))) { + } else { write = 0; xferfunc = HWIF(drive)->atapi_input_bytes; - } else { - printk(KERN_ERR "%s: %s: The drive " - "appears confused (ireason = 0x%02x). " - "Trying to recover by ending request.\n", - drive->name, __FUNCTION__, ireason); - goto end_request; } /* -- GitLab From bcd88ac3b2ff2eae3d0fa57a6b02d4fce5392f32 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Tue, 26 Feb 2008 21:50:35 +0100 Subject: [PATCH 166/923] ide-cd: fix CD/DVD burning Move counting of sense bytes into the transfer loop. Signed-off-by: Andreas Schwab Acked-by: Borislav Petkov Cc: Kiyoshi Ueda Cc: Jens Axboe Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-cd.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 1495fe7a6ec..c8d0e871599 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1178,11 +1178,10 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) else rq->data += blen; } + if (!write && blk_sense_request(rq)) + rq->sense_len += blen; } - if (write && blk_sense_request(rq)) - rq->sense_len += thislen; - /* * pad, if necessary */ -- GitLab From dbecebca1914f414008553b57aefde95b70f9142 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 26 Feb 2008 21:50:35 +0100 Subject: [PATCH 167/923] ide: fix sparse warning about shadowing 'flags' symbol drivers/ide/ide.c:801:18: warning: symbol 'flags' shadows an earlier one drivers/ide/ide.c:732:16: originally declared here Also fix some whitespace damage while at it. Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 30053669762..fa16bc30bbc 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -1031,10 +1031,9 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device drive->nice1 = (arg >> IDE_NICE_1) & 1; return 0; case HDIO_DRIVE_RESET: - { - unsigned long flags; - if (!capable(CAP_SYS_ADMIN)) return -EACCES; - + if (!capable(CAP_SYS_ADMIN)) + return -EACCES; + /* * Abort the current command on the * group if there is one, taking @@ -1053,17 +1052,15 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device ide_abort(drive, "drive reset"); BUG_ON(HWGROUP(drive)->handler); - + /* Ensure nothing gets queued after we drop the lock. Reset will clear the busy */ - + HWGROUP(drive)->busy = 1; spin_unlock_irqrestore(&ide_lock, flags); (void) ide_do_reset(drive); return 0; - } - case HDIO_GET_BUSSTATE: if (!capable(CAP_SYS_ADMIN)) return -EACCES; -- GitLab From d12faa2736ebdee025a9aa07b2683c5fa8c86553 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 26 Feb 2008 21:50:36 +0100 Subject: [PATCH 168/923] ide-disk: add missing printk() KERN_* levels Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-disk.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 8f5bed47105..39501d13025 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -867,7 +867,7 @@ static void idedisk_setup (ide_drive_t *drive) /* Only print cache size when it was specified */ if (id->buf_size) - printk (" w/%dKiB Cache", id->buf_size/2); + printk(KERN_CONT " w/%dKiB Cache", id->buf_size / 2); printk(KERN_CONT ", CHS=%d/%d/%d\n", drive->bios_cyl, drive->bios_head, drive->bios_sect); @@ -949,7 +949,8 @@ static void ide_device_shutdown(ide_drive_t *drive) return; } - printk("Shutdown: %s\n", drive->name); + printk(KERN_INFO "Shutdown: %s\n", drive->name); + drive->gendev.bus->suspend(&drive->gendev, PMSG_SUSPEND); } -- GitLab From d48567dd43868b3d2e1fcc33ee76dc2d38a1ddeb Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Tue, 26 Feb 2008 21:50:36 +0100 Subject: [PATCH 169/923] ide-tape: schedule driver for removal after 6 months Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- Documentation/feature-removal-schedule.txt | 10 ++++++++++ drivers/ide/ide-tape.c | 5 +++++ 2 files changed, 15 insertions(+) diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 4d3aa519ead..ba899ff2a8f 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -172,6 +172,16 @@ Who: Len Brown --------------------------- +What: ide-tape driver +When: July 2008 +Files: drivers/ide/ide-tape.c +Why: This driver might not have any users anymore and maintaining it for no + reason is an effort no one wants to make. +Who: Bartlomiej Zolnierkiewicz , Borislav Petkov + + +--------------------------- + What: libata spindown skipping and warning When: Dec 2008 Why: Some halt(8) implementations synchronize caches for and spin diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 0598ecfd5f3..43e0e055777 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -3765,6 +3765,11 @@ static int ide_tape_probe(ide_drive_t *drive) g->fops = &idetape_block_ops; ide_register_region(g); + printk(KERN_WARNING "It is possible that this driver does not have any" + " users anymore and, as a result, it will be REMOVED soon." + " Please notify Bart or Boris" + " in case you still need it.\n"); + return 0; out_free_tape: -- GitLab From fcac6f87a5642ab16fe3deab11e57252dacf4d55 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 26 Feb 2008 21:50:36 +0100 Subject: [PATCH 170/923] qd65xx: remove commented out code Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/legacy/qd65xx.c | 37 ------------------------------------- 1 file changed, 37 deletions(-) diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c index 1ec0e970f57..2f4f47ad602 100644 --- a/drivers/ide/legacy/qd65xx.c +++ b/drivers/ide/legacy/qd65xx.c @@ -334,43 +334,6 @@ static void __init qd6580_port_init_devs(ide_hwif_t *hwif) hwif->drives[1].drive_data = t2; } -/* - * qd_unsetup: - * - * called to unsetup an ata channel : back to default values, unlinks tuning - */ -/* -static void __exit qd_unsetup(ide_hwif_t *hwif) -{ - u8 config = hwif->config_data; - int base = hwif->select_data; - void *set_pio_mode = (void *)hwif->set_pio_mode; - - if (hwif->chipset != ide_qd65xx) - return; - - printk(KERN_NOTICE "%s: back to defaults\n", hwif->name); - - hwif->selectproc = NULL; - hwif->set_pio_mode = NULL; - - if (set_pio_mode == (void *)qd6500_set_pio_mode) { - // will do it for both - outb(QD6500_DEF_DATA, QD_TIMREG(&hwif->drives[0])); - } else if (set_pio_mode == (void *)qd6580_set_pio_mode) { - if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) { - outb(QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0])); - outb(QD6580_DEF_DATA2, QD_TIMREG(&hwif->drives[1])); - } else { - outb(hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0])); - } - } else { - printk(KERN_WARNING "Unknown qd65xx tuning fonction !\n"); - printk(KERN_WARNING "keeping settings !\n"); - } -} -*/ - static const struct ide_port_info qd65xx_port_info __initdata = { .chipset = ide_qd65xx, .host_flags = IDE_HFLAG_IO_32BIT | -- GitLab From 56467d17d205368f857e194858ea69368a1cfec2 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 26 Feb 2008 21:50:36 +0100 Subject: [PATCH 171/923] ide: remove ide-tape documentation from Documentation/ide.txt More complete documentation is available in Documentation/ide/ide-tape.txt. Signed-off-by: Bartlomiej Zolnierkiewicz --- Documentation/ide.txt | 47 ------------------------------------------- 1 file changed, 47 deletions(-) diff --git a/Documentation/ide.txt b/Documentation/ide.txt index 7b782e84001..bcd7cd1278e 100644 --- a/Documentation/ide.txt +++ b/Documentation/ide.txt @@ -305,53 +305,6 @@ Also for legacy CMD640 host driver (cmd640) you need to use "probe_vlb" kernel paremeter to enable probing for VLB version of the chipset (PCI ones are detected automatically). -================================================================================ - -IDE ATAPI streaming tape driver -------------------------------- - -This driver is a part of the Linux ide driver and works in co-operation -with linux/drivers/block/ide.c. - -The driver, in co-operation with ide.c, basically traverses the -request-list for the block device interface. The character device -interface, on the other hand, creates new requests, adds them -to the request-list of the block device, and waits for their completion. - -Pipelined operation mode is now supported on both reads and writes. - -The block device major and minor numbers are determined from the -tape's relative position in the ide interfaces, as explained in ide.c. - -The character device interface consists of the following devices: - - ht0 major 37, minor 0 first IDE tape, rewind on close. - ht1 major 37, minor 1 second IDE tape, rewind on close. - ... - nht0 major 37, minor 128 first IDE tape, no rewind on close. - nht1 major 37, minor 129 second IDE tape, no rewind on close. - ... - -Run /dev/MAKEDEV to create the above entries. - -The general magnetic tape commands compatible interface, as defined by -include/linux/mtio.h, is accessible through the character device. - -General ide driver configuration options, such as the interrupt-unmask -flag, can be configured by issuing an ioctl to the block device interface, -as any other ide device. - -Our own ide-tape ioctl's can be issued to either the block device or -the character device interface. - -Maximal throughput with minimal bus load will usually be achieved in the -following scenario: - - 1. ide-tape is operating in the pipelined operation mode. - 2. No buffering is performed by the user backup program. - - - ================================================================================ Some Terminology -- GitLab From 204f47c5a581630369d425b5a4afa48448c30359 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 26 Feb 2008 21:50:36 +0100 Subject: [PATCH 172/923] ide: remove stale comments from ide-dma.c (take 2) - ide-dma.c is not a separate module - ide-dma.c is not PCI specific anymore - DMA is enabled by default nowadays - link for Intel Zappa BIOS is dead etc. v2: * Some comments should be preserved. (Noticed by Mark Lord) Cc: Mark Lord Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-dma.c | 52 ++++--------------------------------------- 1 file changed, 4 insertions(+), 48 deletions(-) diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index d0e7b537353..2de99e4be5c 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -1,9 +1,13 @@ /* + * IDE DMA support (including IDE PCI BM-DMA). + * * Copyright (C) 1995-1998 Mark Lord * Copyright (C) 1999-2000 Andre Hedrick * Copyright (C) 2004, 2007 Bartlomiej Zolnierkiewicz * * May be copied or modified under the terms of the GNU General Public License + * + * DMA is supported for all IDE devices (disk drives, cdroms, tapes, floppies). */ /* @@ -11,49 +15,6 @@ */ /* - * This module provides support for the bus-master IDE DMA functions - * of various PCI chipsets, including the Intel PIIX (i82371FB for - * the 430 FX chipset), the PIIX3 (i82371SB for the 430 HX/VX and - * 440 chipsets), and the PIIX4 (i82371AB for the 430 TX chipset) - * ("PIIX" stands for "PCI ISA IDE Xcellerator"). - * - * Pretty much the same code works for other IDE PCI bus-mastering chipsets. - * - * DMA is supported for all IDE devices (disk drives, cdroms, tapes, floppies). - * - * By default, DMA support is prepared for use, but is currently enabled only - * for drives which already have DMA enabled (UltraDMA or mode 2 multi/single), - * or which are recognized as "good" (see table below). Drives with only mode0 - * or mode1 (multi/single) DMA should also work with this chipset/driver - * (eg. MC2112A) but are not enabled by default. - * - * Use "hdparm -i" to view modes supported by a given drive. - * - * The hdparm-3.5 (or later) utility can be used for manually enabling/disabling - * DMA support, but must be (re-)compiled against this kernel version or later. - * - * To enable DMA, use "hdparm -d1 /dev/hd?" on a per-drive basis after booting. - * If problems arise, ide.c will disable DMA operation after a few retries. - * This error recovery mechanism works and has been extremely well exercised. - * - * IDE drives, depending on their vintage, may support several different modes - * of DMA operation. The boot-time modes are indicated with a "*" in - * the "hdparm -i" listing, and can be changed with *knowledgeable* use of - * the "hdparm -X" feature. There is seldom a need to do this, as drives - * normally power-up with their "best" PIO/DMA modes enabled. - * - * Testing has been done with a rather extensive number of drives, - * with Quantum & Western Digital models generally outperforming the pack, - * and Fujitsu & Conner (and some Seagate which are really Conner) drives - * showing more lackluster throughput. - * - * Keep an eye on /var/adm/messages for "DMA disabled" messages. - * - * Some people have reported trouble with Intel Zappa motherboards. - * This can be fixed by upgrading the AMI BIOS to version 1.00.04.BS0, - * available from ftp://ftp.intel.com/pub/bios/10004bs0.exe - * (thanks to Glen Morrell for researching this). - * * Thanks to "Christopher J. Reimer" for * fixing the problem with the BIOS on some Acer motherboards. * @@ -65,11 +26,6 @@ * * Most importantly, thanks to Robert Bringman * for supplying a Promise UDMA board & WD UDMA drive for this work! - * - * And, yes, Intel Zappa boards really *do* use both PIIX IDE ports. - * - * ATA-66/100 and recovery functions, I forgot the rest...... - * */ #include -- GitLab From ed0ba33d64fb933f5fd985aa8f641984efd9d658 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Thu, 21 Feb 2008 08:12:06 -0600 Subject: [PATCH 173/923] RDMA/nes: Fix a memory leak in schedule_nes_timer() Fix a memory leak spotted by the Coverity checker. Signed-off-by: Adrian Bunk Signed-off-by: Glenn Streiff Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_cm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index bd5cfeaac20..78e845c9457 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -370,11 +370,11 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb, int ret = 0; u32 was_timer_set; + if (!cm_node) + return -EINVAL; new_send = kzalloc(sizeof(*new_send), GFP_ATOMIC); if (!new_send) return -1; - if (!cm_node) - return -EINVAL; /* new_send->timetosend = currenttime */ new_send->retrycount = NES_DEFAULT_RETRYS; -- GitLab From a4435febd4c0f14b25159dca249ecf91301c7c76 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Thu, 21 Feb 2008 08:13:47 -0600 Subject: [PATCH 174/923] RDMA/nes: Fix a check-after-use in nes_probe() Fix a check-after-use spotted by the Coverity checker. Signed-off-by: Adrian Bunk Signed-off-by: Glenn Streiff Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c index 7f8853b44ee..b2112f5a422 100644 --- a/drivers/infiniband/hw/nes/nes.c +++ b/drivers/infiniband/hw/nes/nes.c @@ -567,12 +567,12 @@ static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_i /* Init the adapter */ nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev); - nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval; if (!nesdev->nesadapter) { printk(KERN_ERR PFX "Unable to initialize adapter.\n"); ret = -ENOMEM; goto bail5; } + nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval; /* nesdev->base_doorbell_index = nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */ -- GitLab From f84fba6f969065c6622669bbaa955c26fc1461ae Mon Sep 17 00:00:00 2001 From: Glenn Streiff Date: Thu, 21 Feb 2008 08:17:54 -0600 Subject: [PATCH 175/923] RDMA/nes: Fix use-after-free in nes_create_cq() Just delete the debugging statement so we don't use cqp_request after freeing it. Adrian Bunk flagged this use-after-free issue spotted by the Coverity checker. Signed-off-by: Glenn Streiff Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_verbs.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 692f0d82130..a651e9d9f0e 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -1832,9 +1832,6 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, spin_unlock_irqrestore(&nesdev->cqp.lock, flags); } } - nes_debug(NES_DBG_CQ, "iWARP CQ%u create timeout expired, major code = 0x%04X," - " minor code = 0x%04X\n", - nescq->hw_cq.cq_number, cqp_request->major_code, cqp_request->minor_code); if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); -- GitLab From a2e9c384ce76993cd68d6de57eaa81985b4618e3 Mon Sep 17 00:00:00 2001 From: Faisal Latif Date: Thu, 21 Feb 2008 08:27:32 -0600 Subject: [PATCH 176/923] RDMA/nes: Fix use-after-free in mini_cm_dec_refcnt_listen() Fix use-after-free spotted by Coverity checker flagged by Adrian Bunk. Signed-off-by: Faisal Latif Signed-off-by: Glenn Streiff Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_cm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index 78e845c9457..6c298aa9ab0 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -947,6 +947,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core, nes_debug(NES_DBG_CM, "destroying listener (%p)\n", listener); kfree(listener); + listener = NULL; ret = 0; cm_listens_destroyed++; } else { -- GitLab From 30da7cff87f0ffa169fe07b766c3d6a5f6d1f6ab Mon Sep 17 00:00:00 2001 From: Faisal Latif Date: Thu, 21 Feb 2008 08:31:22 -0600 Subject: [PATCH 177/923] RDMA/nes: Fix CRC endianness for RDMA connection establishment on big-endian With commit ef19454b ("[LIB] crc32c: Keep intermediate crc state in cpu order"), the behavior of crc32c changes on big-endian platforms. Our algorithm expects the previous behavior; otherwise we have RDMA connection establishment failure on big-endian platforms like powerpc. Apply cpu_to_le32() to value returned by crc32c() to get the previous behavior. Signed-off-by: Faisal Latif Signed-off-by: Glenn Streiff Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes.h | 15 +++++++++++++++ drivers/infiniband/hw/nes/nes_cm.c | 10 ++++++---- 2 files changed, 21 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h index fd57e8a1582..a48b288618e 100644 --- a/drivers/infiniband/hw/nes/nes.h +++ b/drivers/infiniband/hw/nes/nes.h @@ -285,6 +285,21 @@ struct nes_device { }; +static inline __le32 get_crc_value(struct nes_v4_quad *nes_quad) +{ + u32 crc_value; + crc_value = crc32c(~0, (void *)nes_quad, sizeof (struct nes_v4_quad)); + + /* + * With commit ef19454b ("[LIB] crc32c: Keep intermediate crc + * state in cpu order"), behavior of crc32c changes on + * big-endian platforms. Our algorithm expects the previous + * behavior; otherwise we have RDMA connection establishment + * issue on big-endian. + */ + return cpu_to_le32(crc_value); +} + static inline void set_wqe_64bit_value(__le32 *wqe_words, u32 index, u64 value) { diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index 6c298aa9ab0..39adb267fb1 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -2320,6 +2320,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) struct iw_cm_event cm_event; struct nes_hw_qp_wqe *wqe; struct nes_v4_quad nes_quad; + u32 crc_value; int ret; ibqp = nes_get_qp(cm_id->device, conn_param->qpn); @@ -2436,8 +2437,8 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port; /* Produce hash key */ - nesqp->hte_index = cpu_to_be32( - crc32c(~0, (void *)&nes_quad, sizeof(nes_quad)) ^ 0xffffffff); + crc_value = get_crc_value(&nes_quad); + nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff); nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, CRC = 0x%08X\n", nesqp->hte_index, nesqp->hte_index & adapter->hte_index_mask); @@ -2751,6 +2752,7 @@ void cm_event_connected(struct nes_cm_event *event) struct iw_cm_event cm_event; struct nes_hw_qp_wqe *wqe; struct nes_v4_quad nes_quad; + u32 crc_value; int ret; /* get all our handles */ @@ -2828,8 +2830,8 @@ void cm_event_connected(struct nes_cm_event *event) nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port; /* Produce hash key */ - nesqp->hte_index = cpu_to_be32( - crc32c(~0, (void *)&nes_quad, sizeof(nes_quad)) ^ 0xffffffff); + crc_value = get_crc_value(&nes_quad); + nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff); nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, After CRC = 0x%08X\n", nesqp->hte_index, nesqp->hte_index & nesadapter->hte_index_mask); -- GitLab From 4b1cc7e7ca5715907d17619dcb49144db6efe1c9 Mon Sep 17 00:00:00 2001 From: John Lacombe Date: Thu, 21 Feb 2008 08:34:58 -0600 Subject: [PATCH 178/923] RDMA/nes: Fix interrupt moderation low threshold Interrupt moderation low threshold value was incorrectly triggering, indicating that the threshold should be lowered. The impact was the timer was likely to become 40usecs and get stuck there. The biggest side effect was too many interrupts and nonoptimal performance. Signed-off-by: John Lacombe Signed-off-by: Glenn Streiff Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_hw.c | 13 +++++-------- drivers/infiniband/hw/nes/nes_hw.h | 2 +- 2 files changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c index 7c4c0fbf0ab..49e53e4c1eb 100644 --- a/drivers/infiniband/hw/nes/nes_hw.c +++ b/drivers/infiniband/hw/nes/nes_hw.c @@ -156,15 +156,14 @@ static void nes_nic_tune_timer(struct nes_device *nesdev) spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags); - if (shared_timer->cq_count_old < cq_count) { - if (cq_count > shared_timer->threshold_low) - shared_timer->cq_direction_downward=0; - } - if (shared_timer->cq_count_old >= cq_count) + if (shared_timer->cq_count_old <= cq_count) + shared_timer->cq_direction_downward = 0; + else shared_timer->cq_direction_downward++; shared_timer->cq_count_old = cq_count; if (shared_timer->cq_direction_downward > NES_NIC_CQ_DOWNWARD_TREND) { - if (cq_count <= shared_timer->threshold_low) { + if (cq_count <= shared_timer->threshold_low && + shared_timer->threshold_low > 4) { shared_timer->threshold_low = shared_timer->threshold_low/2; shared_timer->cq_direction_downward=0; nesdev->currcq_count = 0; @@ -1728,7 +1727,6 @@ int nes_napi_isr(struct nes_device *nesdev) nesdev->int_req &= ~NES_INT_TIMER; nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req)); nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req); - nesadapter->tune_timer.timer_in_use_old = 0; } nesdev->deepcq_count = 0; return 1; @@ -1867,7 +1865,6 @@ void nes_dpc(unsigned long param) nesdev->int_req &= ~NES_INT_TIMER; nes_write32(nesdev->regs + NES_INTF_INT_MASK, ~(nesdev->intf_int_req)); nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req); - nesdev->nesadapter->tune_timer.timer_in_use_old = 0; } else { nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff|(~nesdev->int_req)); } diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h index 1e10df550c9..b7e2844f096 100644 --- a/drivers/infiniband/hw/nes/nes_hw.h +++ b/drivers/infiniband/hw/nes/nes_hw.h @@ -962,7 +962,7 @@ struct nes_arp_entry { #define DEFAULT_JUMBO_NES_QL_LOW 12 #define DEFAULT_JUMBO_NES_QL_TARGET 40 #define DEFAULT_JUMBO_NES_QL_HIGH 128 -#define NES_NIC_CQ_DOWNWARD_TREND 8 +#define NES_NIC_CQ_DOWNWARD_TREND 16 struct nes_hw_tune_timer { //u16 cq_count; -- GitLab From 030f1b2f5d880c1ad3d7e0b71fc383f00f38f8f7 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 21 Feb 2008 09:02:41 -0600 Subject: [PATCH 179/923] MAINTAINERS: neteffect update Adding Nishi to the maintainers list. Signed-off-by: Glenn Streiff Signed-off-by: Roland Dreier --- MAINTAINERS | 2 ++ 1 file changed, 2 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 36c7bc641db..4fc5f0aee6a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2744,6 +2744,8 @@ S: Maintained NETEFFECT IWARP RNIC DRIVER (IW_NES) P: Faisal Latif M: flatif@neteffect.com +P: Nishi Gupta +M: ngupta@neteffect.com P: Glenn Streiff M: gstreiff@neteffect.com L: general@lists.openfabrics.org -- GitLab From b2d7c7f7a69fd953626c3e507bac70e18b21f70e Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 26 Feb 2008 21:42:11 +0100 Subject: [PATCH 180/923] arch/sh/drivers/dma/dma-sh.c: Correct use of ! and & In commit e6bafba5b4765a5a252f1b8d31cbf6d2459da337, a bug was fixed that involved converting !x & y to !(x & y). The code below shows the same pattern, and thus should perhaps be fixed in the same way. This is not tested and clearly changes the semantics, so it is only something to consider. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ expression E1,E2; @@ ( !E1 & !E2 | - !E1 & E2 + !(E1 & E2) ) // Signed-off-by: Julia Lawall Signed-off-by: Paul Mundt --- arch/sh/drivers/dma/dma-sh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c index 5c3359756a9..71ff3d6f26e 100644 --- a/arch/sh/drivers/dma/dma-sh.c +++ b/arch/sh/drivers/dma/dma-sh.c @@ -90,7 +90,7 @@ static irqreturn_t dma_tei(int irq, void *dev_id) static int sh_dmac_request_dma(struct dma_channel *chan) { - if (unlikely(!chan->flags & DMA_TEI_CAPABLE)) + if (unlikely(!(chan->flags & DMA_TEI_CAPABLE))) return 0; return request_irq(get_dmte_irq(chan->chan), dma_tei, -- GitLab From 622eaec613130e6ea78f2a5d5070e3278b21cd8f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 26 Feb 2008 17:30:02 -0800 Subject: [PATCH 181/923] [SPARC64]: Loosen checks in exception table handling. Some parts of the kernel now do things like do *_user() accesses while set_fs(KERNEL_DS) that fault on purpose. See, for example, the code added by changeset a0c1e9073ef7428a14309cba010633a6cd6719ea ("futex: runtime enable pi and robust functionality"). That trips up the ASI sanity checking we make in do_kernel_fault(). Just remove it for now. Maybe we can add it back later with an added conditional which looks at the current get_fs() value. Signed-off-by: David S. Miller --- arch/sparc64/mm/fault.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index e2027f27c0f..91836336028 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -244,16 +244,8 @@ static void do_kernel_fault(struct pt_regs *regs, int si_code, int fault_code, if (regs->tstate & TSTATE_PRIV) { const struct exception_table_entry *entry; - if (asi == ASI_P && (insn & 0xc0800000) == 0xc0800000) { - if (insn & 0x2000) - asi = (regs->tstate >> 24); - else - asi = (insn >> 5); - } - - /* Look in asi.h: All _S asis have LS bit set */ - if ((asi & 0x1) && - (entry = search_exception_tables(regs->tpc))) { + entry = search_exception_tables(regs->tpc); + if (entry) { regs->tpc = entry->fixup; regs->tnpc = regs->tpc + 4; return; -- GitLab From d58831375d68a3bd39d5ebab9eca711fbb4ee108 Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Tue, 26 Feb 2008 13:31:42 +1100 Subject: [PATCH 182/923] [POWERPC] spufs: fix context destruction during psmap fault We have a small window where a spu context may be destroyed while we're servicing a page fault (from another thread) to the context's problem state mapping. After we up_read() the mmap_sem, it's possible that the context is destroyed by its owning thread, and so the later references to ctx are invalid. This can maifest as a deadlock on the (now free()-ed) context state mutex. This change adds a reference to the context before we release the mmap_sem, so that the context cannot be destroyed. Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spufs/file.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index c66c3756970..f7a7e8635fb 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -366,6 +366,13 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma, if (offset >= ps_size) return NOPFN_SIGBUS; + /* + * Because we release the mmap_sem, the context may be destroyed while + * we're in spu_wait. Grab an extra reference so it isn't destroyed + * in the meantime. + */ + get_spu_context(ctx); + /* * We have to wait for context to be loaded before we have * pages to hand out to the user, but we don't want to wait @@ -375,7 +382,7 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma, * hanged. */ if (spu_acquire(ctx)) - return NOPFN_REFAULT; + goto refault; if (ctx->state == SPU_STATE_SAVED) { up_read(¤t->mm->mmap_sem); @@ -391,6 +398,9 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma, if (!ret) spu_release(ctx); + +refault: + put_spu_context(ctx); return NOPFN_REFAULT; } -- GitLab From 325d6f5593b40b5a48cf4ade74c01681f2ff6044 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Wed, 27 Feb 2008 14:04:29 +0100 Subject: [PATCH 183/923] avr32: Fix OCD refcounting bug Iff the parent has TIF_DEBUG set, _and_ clone_flags includes CLONE_PTRACE we should set the TIF_DEBUG flag for the child and increment the ocd refcount. Otherwise, the TIF_DEBUG flag must be unset. Currently, the child inherits TIF_DEBUG from the parent before copy_thread is called, so TIF_DEBUG may be already be set before we determine whether the child is supposed to inherit debugging capabilities from the parent or not. This means that ocd_enable() won't increment the refcount, because TIF_DEBUG is already set, and that TIF_DEBUG will be set for processes that aren't being debugged. This leads to a refcounting asymmetry, which may show up as ------------[ cut here ]------------ Badness at arch/avr32/kernel/ocd.c:73 PC is at ocd_disable+0x34/0x60 LR is at put_lock_stats+0xa/0x20 as reported by David Brownell. Happens when strace'ing a process that forks a new child process, e.g. "strace mount -tjffs2 mtd1 /mnt", and subsequently killing the child process (e.g. "umount /mnt".) Signed-off-by: Haavard Skinnemoen --- arch/avr32/kernel/process.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c index faf8d0e7680..7f4af0b1e11 100644 --- a/arch/avr32/kernel/process.c +++ b/arch/avr32/kernel/process.c @@ -348,6 +348,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, p->thread.cpu_context.ksp = (unsigned long)childregs; p->thread.cpu_context.pc = (unsigned long)ret_from_fork; + clear_tsk_thread_flag(p, TIF_DEBUG); if ((clone_flags & CLONE_PTRACE) && test_thread_flag(TIF_DEBUG)) ocd_enable(p); -- GitLab From e33eb074cb95783b4497327098e4128e9f8c15b9 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Wed, 20 Feb 2008 21:45:58 +1100 Subject: [PATCH 184/923] [POWERPC] 4xx: Fix Haleakala PCIe compatibility problem in dts Since the 4xx PCIe driver checks for 405ex compatibility, the PCIe interface was not detected as it is currently defined as "405exr" compatible. This patch changes it to "405ex". The 405EX and 405EXr are identical exept that the 2nd PCIe and the 2nd EMAC interfaces are missing. Signed-off-by: Stefan Roese Signed-off-by: Josh Boyer --- arch/powerpc/boot/dts/haleakala.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/boot/dts/haleakala.dts b/arch/powerpc/boot/dts/haleakala.dts index 5dd3d15f0fe..ae68fefc01b 100644 --- a/arch/powerpc/boot/dts/haleakala.dts +++ b/arch/powerpc/boot/dts/haleakala.dts @@ -235,7 +235,7 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - compatible = "ibm,plb-pciex-405exr", "ibm,plb-pciex"; + compatible = "ibm,plb-pciex-405ex", "ibm,plb-pciex"; primary; port = <0>; /* port number */ reg = Date: Fri, 22 Feb 2008 02:21:37 +1100 Subject: [PATCH 185/923] [POWERPC] 4xx: Fix L1 cache size in katmai DTS This patch changes the katmai (440SPe) L1 cache size to 32k. Some whitespace issues are cleaned up too. Signed-off-by: Stefan Roese Signed-off-by: Josh Boyer --- arch/powerpc/boot/dts/katmai.dts | 58 ++++++++++++++++---------------- 1 file changed, 29 insertions(+), 29 deletions(-) diff --git a/arch/powerpc/boot/dts/katmai.dts b/arch/powerpc/boot/dts/katmai.dts index bc32ac7250e..fc86e5a3afc 100644 --- a/arch/powerpc/boot/dts/katmai.dts +++ b/arch/powerpc/boot/dts/katmai.dts @@ -38,8 +38,8 @@ timebase-frequency = <0>; /* Filled in by zImage */ i-cache-line-size = <20>; d-cache-line-size = <20>; - i-cache-size = <20000>; - d-cache-size = <20000>; + i-cache-size = <8000>; + d-cache-size = <8000>; dcr-controller; dcr-access-method = "native"; }; @@ -136,11 +136,11 @@ }; POB0: opb { - compatible = "ibm,opb-440spe", "ibm,opb-440gp", "ibm,opb"; + compatible = "ibm,opb-440spe", "ibm,opb-440gp", "ibm,opb"; #address-cells = <1>; #size-cells = <1>; - ranges = <00000000 4 e0000000 20000000>; - clock-frequency = <0>; /* Filled in by zImage */ + ranges = <00000000 4 e0000000 20000000>; + clock-frequency = <0>; /* Filled in by zImage */ EBC0: ebc { compatible = "ibm,ebc-440spe", "ibm,ebc-440gp", "ibm,ebc"; @@ -153,38 +153,38 @@ }; UART0: serial@10000200 { - device_type = "serial"; - compatible = "ns16550"; - reg = <10000200 8>; + device_type = "serial"; + compatible = "ns16550"; + reg = <10000200 8>; virtual-reg = ; - clock-frequency = <0>; /* Filled in by zImage */ - current-speed = <1c200>; - interrupt-parent = <&UIC0>; - interrupts = <0 4>; - }; + clock-frequency = <0>; /* Filled in by zImage */ + current-speed = <1c200>; + interrupt-parent = <&UIC0>; + interrupts = <0 4>; + }; UART1: serial@10000300 { - device_type = "serial"; - compatible = "ns16550"; - reg = <10000300 8>; + device_type = "serial"; + compatible = "ns16550"; + reg = <10000300 8>; virtual-reg = ; - clock-frequency = <0>; - current-speed = <0>; - interrupt-parent = <&UIC0>; - interrupts = <1 4>; - }; + clock-frequency = <0>; + current-speed = <0>; + interrupt-parent = <&UIC0>; + interrupts = <1 4>; + }; UART2: serial@10000600 { - device_type = "serial"; - compatible = "ns16550"; - reg = <10000600 8>; + device_type = "serial"; + compatible = "ns16550"; + reg = <10000600 8>; virtual-reg = ; - clock-frequency = <0>; - current-speed = <0>; - interrupt-parent = <&UIC1>; - interrupts = <5 4>; - }; + clock-frequency = <0>; + current-speed = <0>; + interrupt-parent = <&UIC1>; + interrupts = <5 4>; + }; IIC0: i2c@10000400 { compatible = "ibm,iic-440spe", "ibm,iic-440gp", "ibm,iic"; -- GitLab From c91f91e5fb04fc8fd8fa4b5e9d949031e631c107 Mon Sep 17 00:00:00 2001 From: Valentine Barshak Date: Wed, 27 Feb 2008 01:58:53 +1100 Subject: [PATCH 186/923] [POWERPC] 44x: add missing define TARGET_4xx and TARGET_440GX to cuboot-taishan In order to get the proper boad info (bd_info) structure defined in ppcboot.h both TARGET_4xx and TARGET_44x should be defined for all PowerPC 440 boards. The 440GX boards also need TARGET_440GX defined since they have 4 EMACs and there are 4 MAC addesses in bd_info passed by u-boot. Signed-off-by: Valentine Barshak Signed-off-by: Josh Boyer --- arch/powerpc/boot/cuboot-taishan.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/boot/cuboot-taishan.c b/arch/powerpc/boot/cuboot-taishan.c index f66455a45ab..b55b80467ee 100644 --- a/arch/powerpc/boot/cuboot-taishan.c +++ b/arch/powerpc/boot/cuboot-taishan.c @@ -21,7 +21,9 @@ #include "dcr.h" #include "4xx.h" +#define TARGET_4xx #define TARGET_44x +#define TARGET_440GX #include "ppcboot.h" static bd_t bd; -- GitLab From 0111a701867a796a7ca6ecbc385e4befc9f35066 Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Wed, 27 Feb 2008 19:08:13 +1100 Subject: [PATCH 187/923] [POWERPC] spufs: fix invalid scheduling of forgotten contexts At present, we have a situation where a context with no owner is re-scheduled by spu_forget: Thread 1: reading regs file Thread 2: context owner spu_forget() - ctx->owner = NULL - set SPU_SCHED_WAS_ACTIVE spu_acquire_saved() - context is in saved state spu_release_saved() - SPU_SCHED_WAS_ACTIVE is set, so spu_activate() the context, which now has no owner In spu_forget(), we shouldn't be requesting a re-schedule by setting SPU_SCHED_WAS_ACTIVE. This change removes the set_bit in spu_forget(), so that spu_release_saved() doesn't reinsert this destroyed context on to the run queue. Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spufs/context.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/platforms/cell/spufs/context.c b/arch/powerpc/platforms/cell/spufs/context.c index 133995ed5cc..cf6c2c89211 100644 --- a/arch/powerpc/platforms/cell/spufs/context.c +++ b/arch/powerpc/platforms/cell/spufs/context.c @@ -109,13 +109,12 @@ void spu_forget(struct spu_context *ctx) /* * This is basically an open-coded spu_acquire_saved, except that - * we don't acquire the state mutex interruptible. + * we don't acquire the state mutex interruptible, and we don't + * want this context to be rescheduled on release. */ mutex_lock(&ctx->state_mutex); - if (ctx->state != SPU_STATE_SAVED) { - set_bit(SPU_SCHED_WAS_ACTIVE, &ctx->sched_flags); + if (ctx->state != SPU_STATE_SAVED) spu_deactivate(ctx); - } mm = ctx->owner; ctx->owner = NULL; -- GitLab From 31ed0bf439a15363c28c7a239f52eb127cb6feb3 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Tue, 26 Feb 2008 12:35:23 -0600 Subject: [PATCH 188/923] [SCSI] iscsi regression: check for zero max session cmds The old tools did not set max session cmds. This is a regression. I removed the check when merging the power of 2 patch. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/libiscsi.c | 4 ++-- drivers/scsi/scsi_transport_iscsi.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 59f8445eab0..bdd7de7da39 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1708,8 +1708,8 @@ iscsi_session_setup(struct iscsi_transport *iscsit, qdepth = ISCSI_DEF_CMD_PER_LUN; } - if (!is_power_of_2(cmds_max) || - cmds_max >= ISCSI_MGMT_ITT_OFFSET) { + if (!is_power_of_2(cmds_max) || cmds_max >= ISCSI_MGMT_ITT_OFFSET || + cmds_max < 2) { if (cmds_max != 0) printk(KERN_ERR "iscsi: invalid can_queue of %d. " "can_queue must be a power of 2 and between " diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 9981682d530..dfb026b95a6 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -33,7 +33,7 @@ #define ISCSI_SESSION_ATTRS 19 #define ISCSI_CONN_ATTRS 13 #define ISCSI_HOST_ATTRS 4 -#define ISCSI_TRANSPORT_VERSION "2.0-868" +#define ISCSI_TRANSPORT_VERSION "2.0-869" struct iscsi_internal { int daemon_pid; -- GitLab From b31ddd31c266c2ad1b708cad0d3d8e0aa7fa2737 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Wed, 27 Feb 2008 15:27:16 -0800 Subject: [PATCH 189/923] [SCSI] gdth: bugfix for the at-exit problems gdth_exit would first remove all cards then stop the timer and would not sync with the timer function. This caused a crash in gdth_timer() when module was unloaded. So del_timer_sync the timer before we delete the cards. also the reboot notifier function would crash. So clean that up and fix the crashes. Signed-off-by: Boaz Harrosh Tested-by: Joerg Dorchain: Tested-by: Stefan Priebe Tested-by: Jon Chelton Cc: Stable Tree Signed-off-by: James Bottomley --- drivers/scsi/gdth.c | 82 ++++++++++++++++----------------------------- 1 file changed, 28 insertions(+), 54 deletions(-) diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 6d67f5c0eb8..23d1a28b929 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -182,7 +182,6 @@ static int gdth_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, unsigned long arg); static void gdth_flush(gdth_ha_str *ha); -static int gdth_halt(struct notifier_block *nb, ulong event, void *buf); static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *)); static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp, struct gdth_cmndinfo *cmndinfo); @@ -417,12 +416,6 @@ static inline void gdth_set_sglist(struct scsi_cmnd *cmd, #include "gdth_proc.h" #include "gdth_proc.c" -/* notifier block to get a notify on system shutdown/halt/reboot */ -static struct notifier_block gdth_notifier = { - gdth_halt, NULL, 0 -}; -static int notifier_disabled = 0; - static gdth_ha_str *gdth_find_ha(int hanum) { gdth_ha_str *ha; @@ -3794,6 +3787,8 @@ static void gdth_timeout(ulong data) gdth_ha_str *ha; ulong flags; + BUG_ON(list_empty(&gdth_instances)); + ha = list_first_entry(&gdth_instances, gdth_ha_str, list); spin_lock_irqsave(&ha->smp_lock, flags); @@ -4669,45 +4664,6 @@ static void gdth_flush(gdth_ha_str *ha) } } -/* shutdown routine */ -static int gdth_halt(struct notifier_block *nb, ulong event, void *buf) -{ - gdth_ha_str *ha; -#ifndef __alpha__ - gdth_cmd_str gdtcmd; - char cmnd[MAX_COMMAND_SIZE]; -#endif - - if (notifier_disabled) - return NOTIFY_OK; - - TRACE2(("gdth_halt() event %d\n",(int)event)); - if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) - return NOTIFY_DONE; - - notifier_disabled = 1; - printk("GDT-HA: Flushing all host drives .. "); - list_for_each_entry(ha, &gdth_instances, list) { - gdth_flush(ha); - -#ifndef __alpha__ - /* controller reset */ - memset(cmnd, 0xff, MAX_COMMAND_SIZE); - gdtcmd.BoardNode = LOCALBOARD; - gdtcmd.Service = CACHESERVICE; - gdtcmd.OpCode = GDT_RESET; - TRACE2(("gdth_halt(): reset controller %d\n", ha->hanum)); - gdth_execute(ha->shost, &gdtcmd, cmnd, 10, NULL); -#endif - } - printk("Done.\n"); - -#ifdef GDTH_STATISTICS - del_timer(&gdth_timer); -#endif - return NOTIFY_OK; -} - /* configure lun */ static int gdth_slave_configure(struct scsi_device *sdev) { @@ -5142,13 +5098,13 @@ static void gdth_remove_one(gdth_ha_str *ha) scsi_remove_host(shp); + gdth_flush(ha); + if (ha->sdev) { scsi_free_host_dev(ha->sdev); ha->sdev = NULL; } - gdth_flush(ha); - if (shp->irq) free_irq(shp->irq,ha); @@ -5174,6 +5130,24 @@ static void gdth_remove_one(gdth_ha_str *ha) scsi_host_put(shp); } +static int gdth_halt(struct notifier_block *nb, ulong event, void *buf) +{ + gdth_ha_str *ha; + + TRACE2(("gdth_halt() event %d\n", (int)event)); + if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) + return NOTIFY_DONE; + + list_for_each_entry(ha, &gdth_instances, list) + gdth_flush(ha); + + return NOTIFY_OK; +} + +static struct notifier_block gdth_notifier = { + gdth_halt, NULL, 0 +}; + static int __init gdth_init(void) { if (disable) { @@ -5236,7 +5210,6 @@ static int __init gdth_init(void) add_timer(&gdth_timer); #endif major = register_chrdev(0,"gdth", &gdth_fops); - notifier_disabled = 0; register_reboot_notifier(&gdth_notifier); gdth_polling = FALSE; return 0; @@ -5246,14 +5219,15 @@ static void __exit gdth_exit(void) { gdth_ha_str *ha; - list_for_each_entry(ha, &gdth_instances, list) - gdth_remove_one(ha); + unregister_chrdev(major, "gdth"); + unregister_reboot_notifier(&gdth_notifier); #ifdef GDTH_STATISTICS - del_timer(&gdth_timer); + del_timer_sync(&gdth_timer); #endif - unregister_chrdev(major,"gdth"); - unregister_reboot_notifier(&gdth_notifier); + + list_for_each_entry(ha, &gdth_instances, list) + gdth_remove_one(ha); } module_init(gdth_init); -- GitLab From ee54cc6af95a7fa09da298493b853a9e64fa8abd Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Wed, 27 Feb 2008 15:29:15 -0800 Subject: [PATCH 190/923] [SCSI] gdth: fix to internal commands execution The recent patch named: [SCSI] gdth: !use_sg cleanup and use of scsi accessors has done a bad job in handling internal commands issued by gdth_execute(). Internal commands are issued with device gdth_cmd_str ready made directly to the card, without any mapping or translations of scsi commands. So here I added a gdth_cmd_str pointer to the gdth_cmndinfo private structure which is then copied directly to host. following this patch is a cleanup that removes the home cooked accessors and reverts them to regular scsi_cmnd accessors. Since they are not used anymore. After review maybe the 2 patches should be squashed together. FIXME: There is still a problem with gdth_get_info(). as reported there is a WARN_ON trigerd in dma_free_coherent() when doing: $ cat /proc/sys/gdth/0 Signed-off-by: Boaz Harrosh Tested-by: Joerg Dorchain: Tested-by: Stefan Priebe Tested-by: Jon Chelton Cc: Stable Tree Signed-off-by: James Bottomley --- drivers/scsi/gdth.c | 30 ++++++++++++------------------ drivers/scsi/gdth.h | 1 + 2 files changed, 13 insertions(+), 18 deletions(-) diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 23d1a28b929..27ebd336409 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -160,7 +160,7 @@ static void gdth_readapp_event(gdth_ha_str *ha, unchar application, static void gdth_clear_events(void); static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp, - char *buffer, ushort count, int to_buffer); + char *buffer, ushort count); static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp); static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive); @@ -438,8 +438,8 @@ static struct gdth_cmndinfo *gdth_get_cmndinfo(gdth_ha_str *ha) for (i=0; icmndinfo[i].index == 0) { priv = &ha->cmndinfo[i]; - priv->index = i+1; memset(priv, 0, sizeof(*priv)); + priv->index = i+1; break; } } @@ -486,7 +486,6 @@ int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd, gdth_ha_str *ha = shost_priv(sdev->host); Scsi_Cmnd *scp; struct gdth_cmndinfo cmndinfo; - struct scatterlist one_sg; DECLARE_COMPLETION_ONSTACK(wait); int rval; @@ -500,13 +499,10 @@ int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd, /* use request field to save the ptr. to completion struct. */ scp->request = (struct request *)&wait; scp->timeout_per_command = timeout*HZ; - sg_init_one(&one_sg, gdtcmd, sizeof(*gdtcmd)); - gdth_set_sglist(scp, &one_sg); - gdth_set_sg_count(scp, 1); - gdth_set_bufflen(scp, sizeof(*gdtcmd)); scp->cmd_len = 12; memcpy(scp->cmnd, cmnd, 12); cmndinfo.priority = IOCTL_PRI; + cmndinfo.internal_cmd_str = gdtcmd; cmndinfo.internal_command = 1; TRACE(("__gdth_execute() cmd 0x%x\n", scp->cmnd[0])); @@ -2348,7 +2344,7 @@ static void gdth_next(gdth_ha_str *ha) * buffers, kmap_atomic() as needed. */ static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp, - char *buffer, ushort count, int to_buffer) + char *buffer, ushort count) { ushort cpcount,i, max_sg = gdth_sg_count(scp); ushort cpsum,cpnow; @@ -2374,10 +2370,7 @@ static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp, } local_irq_save(flags); address = kmap_atomic(sg_page(sl), KM_BIO_SRC_IRQ) + sl->offset; - if (to_buffer) - memcpy(buffer, address, cpnow); - else - memcpy(address, buffer, cpnow); + memcpy(address, buffer, cpnow); flush_dcache_page(sg_page(sl)); kunmap_atomic(address, KM_BIO_SRC_IRQ); local_irq_restore(flags); @@ -2431,7 +2424,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) strcpy(inq.vendor,ha->oem_name); sprintf(inq.product,"Host Drive #%02d",t); strcpy(inq.revision," "); - gdth_copy_internal_data(ha, scp, (char*)&inq, sizeof(gdth_inq_data), 0); + gdth_copy_internal_data(ha, scp, (char*)&inq, sizeof(gdth_inq_data)); break; case REQUEST_SENSE: @@ -2441,7 +2434,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) sd.key = NO_SENSE; sd.info = 0; sd.add_length= 0; - gdth_copy_internal_data(ha, scp, (char*)&sd, sizeof(gdth_sense_data), 0); + gdth_copy_internal_data(ha, scp, (char*)&sd, sizeof(gdth_sense_data)); break; case MODE_SENSE: @@ -2453,7 +2446,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16; mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8; mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff); - gdth_copy_internal_data(ha, scp, (char*)&mpd, sizeof(gdth_modep_data), 0); + gdth_copy_internal_data(ha, scp, (char*)&mpd, sizeof(gdth_modep_data)); break; case READ_CAPACITY: @@ -2463,7 +2456,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) else rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1); rdc.block_length = cpu_to_be32(SECTOR_SIZE); - gdth_copy_internal_data(ha, scp, (char*)&rdc, sizeof(gdth_rdcap_data), 0); + gdth_copy_internal_data(ha, scp, (char*)&rdc, sizeof(gdth_rdcap_data)); break; case SERVICE_ACTION_IN: @@ -2475,7 +2468,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1); rdc16.block_length = cpu_to_be32(SECTOR_SIZE); gdth_copy_internal_data(ha, scp, (char*)&rdc16, - sizeof(gdth_rdcap16_data), 0); + sizeof(gdth_rdcap16_data)); } else { scp->result = DID_ABORT << 16; } @@ -2845,6 +2838,7 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b) static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) { register gdth_cmd_str *cmdp; + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); int cmd_index; cmdp= ha->pccb; @@ -2853,7 +2847,7 @@ static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) if (ha->type==GDT_EISA && ha->cmd_cnt>0) return 0; - gdth_copy_internal_data(ha, scp, (char *)cmdp, sizeof(gdth_cmd_str), 1); + *cmdp = *cmndinfo->internal_cmd_str; cmdp->RequestBuffer = scp; /* search free command index */ diff --git a/drivers/scsi/gdth.h b/drivers/scsi/gdth.h index 1434c6b0297..26e4e92515e 100644 --- a/drivers/scsi/gdth.h +++ b/drivers/scsi/gdth.h @@ -915,6 +915,7 @@ typedef struct { struct gdth_cmndinfo { /* per-command private info */ int index; int internal_command; /* don't call scsi_done */ + gdth_cmd_str *internal_cmd_str; /* crier for internal messages*/ dma_addr_t sense_paddr; /* sense dma-addr */ unchar priority; int timeout; -- GitLab From fe57e8be9e858b6d7af4e088cbbe718f51241eee Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Thu, 28 Feb 2008 08:16:27 -0600 Subject: [PATCH 191/923] [POWERPC] 4xx: Use correct board info structure in cuboot wrappers Correct the remaining 44x cuboot wrappers to define TARGET_4xx as well. This creates the correct structure to use, including things like the second MAC address. Signed-off-by: Josh Boyer --- arch/powerpc/boot/cuboot-bamboo.c | 1 + arch/powerpc/boot/cuboot-ebony.c | 1 + arch/powerpc/boot/cuboot-katmai.c | 1 + arch/powerpc/boot/cuboot-warp.c | 1 + 4 files changed, 4 insertions(+) diff --git a/arch/powerpc/boot/cuboot-bamboo.c b/arch/powerpc/boot/cuboot-bamboo.c index 900c7ff2b7e..b5c30f766c4 100644 --- a/arch/powerpc/boot/cuboot-bamboo.c +++ b/arch/powerpc/boot/cuboot-bamboo.c @@ -17,6 +17,7 @@ #include "44x.h" #include "cuboot.h" +#define TARGET_4xx #define TARGET_44x #include "ppcboot.h" diff --git a/arch/powerpc/boot/cuboot-ebony.c b/arch/powerpc/boot/cuboot-ebony.c index c5f37ce172e..56564ba37f6 100644 --- a/arch/powerpc/boot/cuboot-ebony.c +++ b/arch/powerpc/boot/cuboot-ebony.c @@ -17,6 +17,7 @@ #include "44x.h" #include "cuboot.h" +#define TARGET_4xx #define TARGET_44x #include "ppcboot.h" diff --git a/arch/powerpc/boot/cuboot-katmai.c b/arch/powerpc/boot/cuboot-katmai.c index c021167f938..5434d70b566 100644 --- a/arch/powerpc/boot/cuboot-katmai.c +++ b/arch/powerpc/boot/cuboot-katmai.c @@ -22,6 +22,7 @@ #include "44x.h" #include "cuboot.h" +#define TARGET_4xx #define TARGET_44x #include "ppcboot.h" diff --git a/arch/powerpc/boot/cuboot-warp.c b/arch/powerpc/boot/cuboot-warp.c index bdedebe1bc1..3db93e85e9e 100644 --- a/arch/powerpc/boot/cuboot-warp.c +++ b/arch/powerpc/boot/cuboot-warp.c @@ -11,6 +11,7 @@ #include "4xx.h" #include "cuboot.h" +#define TARGET_4xx #define TARGET_44x #include "ppcboot.h" -- GitLab From f62f2fdd9c33160584b800da8c4a25ff1679225a Mon Sep 17 00:00:00 2001 From: Stephen Neuendorffer Date: Mon, 25 Feb 2008 10:34:47 +1100 Subject: [PATCH 192/923] [POWERPC] Xilinx: hwicap cleanup This fixes various items pointed out during a review of the hwicap driver. Primarily, reversed memcpy calls, re-entrancy issues, and mutex conversion have been addressed. There are also fixes to comments to use the kerneldoc format, as well as some sparse annotations. Signed-off-by: Stephen Neuendorffer Acked-by: Grant Likely Signed-off-by: Josh Boyer --- drivers/char/xilinx_hwicap/buffer_icap.c | 80 ++++++------ drivers/char/xilinx_hwicap/fifo_icap.c | 60 ++++----- drivers/char/xilinx_hwicap/xilinx_hwicap.c | 138 +++++++++------------ drivers/char/xilinx_hwicap/xilinx_hwicap.h | 24 ++-- 4 files changed, 144 insertions(+), 158 deletions(-) diff --git a/drivers/char/xilinx_hwicap/buffer_icap.c b/drivers/char/xilinx_hwicap/buffer_icap.c index dfea2bde162..f577daedb63 100644 --- a/drivers/char/xilinx_hwicap/buffer_icap.c +++ b/drivers/char/xilinx_hwicap/buffer_icap.c @@ -73,8 +73,8 @@ #define XHI_BUFFER_START 0 /** - * buffer_icap_get_status: Get the contents of the status register. - * @parameter base_address: is the base address of the device + * buffer_icap_get_status - Get the contents of the status register. + * @base_address: is the base address of the device * * The status register contains the ICAP status and the done bit. * @@ -94,9 +94,9 @@ static inline u32 buffer_icap_get_status(void __iomem *base_address) } /** - * buffer_icap_get_bram: Reads data from the storage buffer bram. - * @parameter base_address: contains the base address of the component. - * @parameter offset: The word offset from which the data should be read. + * buffer_icap_get_bram - Reads data from the storage buffer bram. + * @base_address: contains the base address of the component. + * @offset: The word offset from which the data should be read. * * A bram is used as a configuration memory cache. One frame of data can * be stored in this "storage buffer". @@ -108,8 +108,8 @@ static inline u32 buffer_icap_get_bram(void __iomem *base_address, } /** - * buffer_icap_busy: Return true if the icap device is busy - * @parameter base_address: is the base address of the device + * buffer_icap_busy - Return true if the icap device is busy + * @base_address: is the base address of the device * * The queries the low order bit of the status register, which * indicates whether the current configuration or readback operation @@ -121,8 +121,8 @@ static inline bool buffer_icap_busy(void __iomem *base_address) } /** - * buffer_icap_busy: Return true if the icap device is not busy - * @parameter base_address: is the base address of the device + * buffer_icap_busy - Return true if the icap device is not busy + * @base_address: is the base address of the device * * The queries the low order bit of the status register, which * indicates whether the current configuration or readback operation @@ -134,9 +134,9 @@ static inline bool buffer_icap_done(void __iomem *base_address) } /** - * buffer_icap_set_size: Set the size register. - * @parameter base_address: is the base address of the device - * @parameter data: The size in bytes. + * buffer_icap_set_size - Set the size register. + * @base_address: is the base address of the device + * @data: The size in bytes. * * The size register holds the number of 8 bit bytes to transfer between * bram and the icap (or icap to bram). @@ -148,9 +148,9 @@ static inline void buffer_icap_set_size(void __iomem *base_address, } /** - * buffer_icap_mSetoffsetReg: Set the bram offset register. - * @parameter base_address: contains the base address of the device. - * @parameter data: is the value to be written to the data register. + * buffer_icap_set_offset - Set the bram offset register. + * @base_address: contains the base address of the device. + * @data: is the value to be written to the data register. * * The bram offset register holds the starting bram address to transfer * data from during configuration or write data to during readback. @@ -162,9 +162,9 @@ static inline void buffer_icap_set_offset(void __iomem *base_address, } /** - * buffer_icap_set_rnc: Set the RNC (Readback not Configure) register. - * @parameter base_address: contains the base address of the device. - * @parameter data: is the value to be written to the data register. + * buffer_icap_set_rnc - Set the RNC (Readback not Configure) register. + * @base_address: contains the base address of the device. + * @data: is the value to be written to the data register. * * The RNC register determines the direction of the data transfer. It * controls whether a configuration or readback take place. Writing to @@ -178,10 +178,10 @@ static inline void buffer_icap_set_rnc(void __iomem *base_address, } /** - * buffer_icap_set_bram: Write data to the storage buffer bram. - * @parameter base_address: contains the base address of the component. - * @parameter offset: The word offset at which the data should be written. - * @parameter data: The value to be written to the bram offset. + * buffer_icap_set_bram - Write data to the storage buffer bram. + * @base_address: contains the base address of the component. + * @offset: The word offset at which the data should be written. + * @data: The value to be written to the bram offset. * * A bram is used as a configuration memory cache. One frame of data can * be stored in this "storage buffer". @@ -193,10 +193,10 @@ static inline void buffer_icap_set_bram(void __iomem *base_address, } /** - * buffer_icap_device_read: Transfer bytes from ICAP to the storage buffer. - * @parameter drvdata: a pointer to the drvdata. - * @parameter offset: The storage buffer start address. - * @parameter count: The number of words (32 bit) to read from the + * buffer_icap_device_read - Transfer bytes from ICAP to the storage buffer. + * @drvdata: a pointer to the drvdata. + * @offset: The storage buffer start address. + * @count: The number of words (32 bit) to read from the * device (ICAP). **/ static int buffer_icap_device_read(struct hwicap_drvdata *drvdata, @@ -227,10 +227,10 @@ static int buffer_icap_device_read(struct hwicap_drvdata *drvdata, }; /** - * buffer_icap_device_write: Transfer bytes from ICAP to the storage buffer. - * @parameter drvdata: a pointer to the drvdata. - * @parameter offset: The storage buffer start address. - * @parameter count: The number of words (32 bit) to read from the + * buffer_icap_device_write - Transfer bytes from ICAP to the storage buffer. + * @drvdata: a pointer to the drvdata. + * @offset: The storage buffer start address. + * @count: The number of words (32 bit) to read from the * device (ICAP). **/ static int buffer_icap_device_write(struct hwicap_drvdata *drvdata, @@ -261,8 +261,8 @@ static int buffer_icap_device_write(struct hwicap_drvdata *drvdata, }; /** - * buffer_icap_reset: Reset the logic of the icap device. - * @parameter drvdata: a pointer to the drvdata. + * buffer_icap_reset - Reset the logic of the icap device. + * @drvdata: a pointer to the drvdata. * * Writing to the status register resets the ICAP logic in an internal * version of the core. For the version of the core published in EDK, @@ -274,10 +274,10 @@ void buffer_icap_reset(struct hwicap_drvdata *drvdata) } /** - * buffer_icap_set_configuration: Load a partial bitstream from system memory. - * @parameter drvdata: a pointer to the drvdata. - * @parameter data: Kernel address of the partial bitstream. - * @parameter size: the size of the partial bitstream in 32 bit words. + * buffer_icap_set_configuration - Load a partial bitstream from system memory. + * @drvdata: a pointer to the drvdata. + * @data: Kernel address of the partial bitstream. + * @size: the size of the partial bitstream in 32 bit words. **/ int buffer_icap_set_configuration(struct hwicap_drvdata *drvdata, u32 *data, u32 size) @@ -333,10 +333,10 @@ int buffer_icap_set_configuration(struct hwicap_drvdata *drvdata, u32 *data, }; /** - * buffer_icap_get_configuration: Read configuration data from the device. - * @parameter drvdata: a pointer to the drvdata. - * @parameter data: Address of the data representing the partial bitstream - * @parameter size: the size of the partial bitstream in 32 bit words. + * buffer_icap_get_configuration - Read configuration data from the device. + * @drvdata: a pointer to the drvdata. + * @data: Address of the data representing the partial bitstream + * @size: the size of the partial bitstream in 32 bit words. **/ int buffer_icap_get_configuration(struct hwicap_drvdata *drvdata, u32 *data, u32 size) diff --git a/drivers/char/xilinx_hwicap/fifo_icap.c b/drivers/char/xilinx_hwicap/fifo_icap.c index 0988314694a..6f45dbd4712 100644 --- a/drivers/char/xilinx_hwicap/fifo_icap.c +++ b/drivers/char/xilinx_hwicap/fifo_icap.c @@ -94,9 +94,9 @@ /** - * fifo_icap_fifo_write: Write data to the write FIFO. - * @parameter drvdata: a pointer to the drvdata. - * @parameter data: the 32-bit value to be written to the FIFO. + * fifo_icap_fifo_write - Write data to the write FIFO. + * @drvdata: a pointer to the drvdata. + * @data: the 32-bit value to be written to the FIFO. * * This function will silently fail if the fifo is full. **/ @@ -108,8 +108,8 @@ static inline void fifo_icap_fifo_write(struct hwicap_drvdata *drvdata, } /** - * fifo_icap_fifo_read: Read data from the Read FIFO. - * @parameter drvdata: a pointer to the drvdata. + * fifo_icap_fifo_read - Read data from the Read FIFO. + * @drvdata: a pointer to the drvdata. * * This function will silently fail if the fifo is empty. **/ @@ -121,9 +121,9 @@ static inline u32 fifo_icap_fifo_read(struct hwicap_drvdata *drvdata) } /** - * fifo_icap_set_read_size: Set the the size register. - * @parameter drvdata: a pointer to the drvdata. - * @parameter data: the size of the following read transaction, in words. + * fifo_icap_set_read_size - Set the the size register. + * @drvdata: a pointer to the drvdata. + * @data: the size of the following read transaction, in words. **/ static inline void fifo_icap_set_read_size(struct hwicap_drvdata *drvdata, u32 data) @@ -132,8 +132,8 @@ static inline void fifo_icap_set_read_size(struct hwicap_drvdata *drvdata, } /** - * fifo_icap_start_config: Initiate a configuration (write) to the device. - * @parameter drvdata: a pointer to the drvdata. + * fifo_icap_start_config - Initiate a configuration (write) to the device. + * @drvdata: a pointer to the drvdata. **/ static inline void fifo_icap_start_config(struct hwicap_drvdata *drvdata) { @@ -142,8 +142,8 @@ static inline void fifo_icap_start_config(struct hwicap_drvdata *drvdata) } /** - * fifo_icap_start_readback: Initiate a readback from the device. - * @parameter drvdata: a pointer to the drvdata. + * fifo_icap_start_readback - Initiate a readback from the device. + * @drvdata: a pointer to the drvdata. **/ static inline void fifo_icap_start_readback(struct hwicap_drvdata *drvdata) { @@ -152,8 +152,8 @@ static inline void fifo_icap_start_readback(struct hwicap_drvdata *drvdata) } /** - * fifo_icap_busy: Return true if the ICAP is still processing a transaction. - * @parameter drvdata: a pointer to the drvdata. + * fifo_icap_busy - Return true if the ICAP is still processing a transaction. + * @drvdata: a pointer to the drvdata. **/ static inline u32 fifo_icap_busy(struct hwicap_drvdata *drvdata) { @@ -163,8 +163,8 @@ static inline u32 fifo_icap_busy(struct hwicap_drvdata *drvdata) } /** - * fifo_icap_write_fifo_vacancy: Query the write fifo available space. - * @parameter drvdata: a pointer to the drvdata. + * fifo_icap_write_fifo_vacancy - Query the write fifo available space. + * @drvdata: a pointer to the drvdata. * * Return the number of words that can be safely pushed into the write fifo. **/ @@ -175,8 +175,8 @@ static inline u32 fifo_icap_write_fifo_vacancy( } /** - * fifo_icap_read_fifo_occupancy: Query the read fifo available data. - * @parameter drvdata: a pointer to the drvdata. + * fifo_icap_read_fifo_occupancy - Query the read fifo available data. + * @drvdata: a pointer to the drvdata. * * Return the number of words that can be safely read from the read fifo. **/ @@ -187,11 +187,11 @@ static inline u32 fifo_icap_read_fifo_occupancy( } /** - * fifo_icap_set_configuration: Send configuration data to the ICAP. - * @parameter drvdata: a pointer to the drvdata. - * @parameter frame_buffer: a pointer to the data to be written to the + * fifo_icap_set_configuration - Send configuration data to the ICAP. + * @drvdata: a pointer to the drvdata. + * @frame_buffer: a pointer to the data to be written to the * ICAP device. - * @parameter num_words: the number of words (32 bit) to write to the ICAP + * @num_words: the number of words (32 bit) to write to the ICAP * device. * This function writes the given user data to the Write FIFO in @@ -266,10 +266,10 @@ int fifo_icap_set_configuration(struct hwicap_drvdata *drvdata, } /** - * fifo_icap_get_configuration: Read configuration data from the device. - * @parameter drvdata: a pointer to the drvdata. - * @parameter data: Address of the data representing the partial bitstream - * @parameter size: the size of the partial bitstream in 32 bit words. + * fifo_icap_get_configuration - Read configuration data from the device. + * @drvdata: a pointer to the drvdata. + * @data: Address of the data representing the partial bitstream + * @size: the size of the partial bitstream in 32 bit words. * * This function reads the specified number of words from the ICAP device in * the polled mode. @@ -335,8 +335,8 @@ int fifo_icap_get_configuration(struct hwicap_drvdata *drvdata, } /** - * buffer_icap_reset: Reset the logic of the icap device. - * @parameter drvdata: a pointer to the drvdata. + * buffer_icap_reset - Reset the logic of the icap device. + * @drvdata: a pointer to the drvdata. * * This function forces the software reset of the complete HWICAP device. * All the registers will return to the default value and the FIFO is also @@ -360,8 +360,8 @@ void fifo_icap_reset(struct hwicap_drvdata *drvdata) } /** - * fifo_icap_flush_fifo: This function flushes the FIFOs in the device. - * @parameter drvdata: a pointer to the drvdata. + * fifo_icap_flush_fifo - This function flushes the FIFOs in the device. + * @drvdata: a pointer to the drvdata. */ void fifo_icap_flush_fifo(struct hwicap_drvdata *drvdata) { diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c index 24f6aef0fd3..2284fa2a5a5 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c @@ -84,7 +84,7 @@ #include #include #include -#include +#include #include #include #include @@ -119,6 +119,7 @@ module_param(xhwicap_minor, int, S_IRUGO); /* An array, which is set to true when the device is registered. */ static bool probed_devices[HWICAP_DEVICES]; +static struct mutex icap_sem; static struct class *icap_class; @@ -199,14 +200,14 @@ static const struct config_registers v5_config_registers = { }; /** - * hwicap_command_desync: Send a DESYNC command to the ICAP port. - * @parameter drvdata: a pointer to the drvdata. + * hwicap_command_desync - Send a DESYNC command to the ICAP port. + * @drvdata: a pointer to the drvdata. * * This command desynchronizes the ICAP After this command, a * bitstream containing a NULL packet, followed by a SYNCH packet is * required before the ICAP will recognize commands. */ -int hwicap_command_desync(struct hwicap_drvdata *drvdata) +static int hwicap_command_desync(struct hwicap_drvdata *drvdata) { u32 buffer[4]; u32 index = 0; @@ -228,51 +229,18 @@ int hwicap_command_desync(struct hwicap_drvdata *drvdata) } /** - * hwicap_command_capture: Send a CAPTURE command to the ICAP port. - * @parameter drvdata: a pointer to the drvdata. - * - * This command captures all of the flip flop states so they will be - * available during readback. One can use this command instead of - * enabling the CAPTURE block in the design. - */ -int hwicap_command_capture(struct hwicap_drvdata *drvdata) -{ - u32 buffer[7]; - u32 index = 0; - - /* - * Create the data to be written to the ICAP. - */ - buffer[index++] = XHI_DUMMY_PACKET; - buffer[index++] = XHI_SYNC_PACKET; - buffer[index++] = XHI_NOOP_PACKET; - buffer[index++] = hwicap_type_1_write(drvdata->config_regs->CMD) | 1; - buffer[index++] = XHI_CMD_GCAPTURE; - buffer[index++] = XHI_DUMMY_PACKET; - buffer[index++] = XHI_DUMMY_PACKET; - - /* - * Write the data to the FIFO and intiate the transfer of data - * present in the FIFO to the ICAP device. - */ - return drvdata->config->set_configuration(drvdata, - &buffer[0], index); - -} - -/** - * hwicap_get_configuration_register: Query a configuration register. - * @parameter drvdata: a pointer to the drvdata. - * @parameter reg: a constant which represents the configuration + * hwicap_get_configuration_register - Query a configuration register. + * @drvdata: a pointer to the drvdata. + * @reg: a constant which represents the configuration * register value to be returned. * Examples: XHI_IDCODE, XHI_FLR. - * @parameter RegData: returns the value of the register. + * @reg_data: returns the value of the register. * * Sends a query packet to the ICAP and then receives the response. * The icap is left in Synched state. */ -int hwicap_get_configuration_register(struct hwicap_drvdata *drvdata, - u32 reg, u32 *RegData) +static int hwicap_get_configuration_register(struct hwicap_drvdata *drvdata, + u32 reg, u32 *reg_data) { int status; u32 buffer[6]; @@ -300,14 +268,14 @@ int hwicap_get_configuration_register(struct hwicap_drvdata *drvdata, /* * Read the configuration register */ - status = drvdata->config->get_configuration(drvdata, RegData, 1); + status = drvdata->config->get_configuration(drvdata, reg_data, 1); if (status) return status; return 0; } -int hwicap_initialize_hwicap(struct hwicap_drvdata *drvdata) +static int hwicap_initialize_hwicap(struct hwicap_drvdata *drvdata) { int status; u32 idcode; @@ -344,7 +312,7 @@ int hwicap_initialize_hwicap(struct hwicap_drvdata *drvdata) } static ssize_t -hwicap_read(struct file *file, char *buf, size_t count, loff_t *ppos) +hwicap_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { struct hwicap_drvdata *drvdata = file->private_data; ssize_t bytes_to_read = 0; @@ -353,8 +321,9 @@ hwicap_read(struct file *file, char *buf, size_t count, loff_t *ppos) u32 bytes_remaining; int status; - if (down_interruptible(&drvdata->sem)) - return -ERESTARTSYS; + status = mutex_lock_interruptible(&drvdata->sem); + if (status) + return status; if (drvdata->read_buffer_in_use) { /* If there are leftover bytes in the buffer, just */ @@ -370,8 +339,9 @@ hwicap_read(struct file *file, char *buf, size_t count, loff_t *ppos) goto error; } drvdata->read_buffer_in_use -= bytes_to_read; - memcpy(drvdata->read_buffer + bytes_to_read, - drvdata->read_buffer, 4 - bytes_to_read); + memmove(drvdata->read_buffer, + drvdata->read_buffer + bytes_to_read, + 4 - bytes_to_read); } else { /* Get new data from the ICAP, and return was was requested. */ kbuf = (u32 *) get_zeroed_page(GFP_KERNEL); @@ -414,18 +384,20 @@ hwicap_read(struct file *file, char *buf, size_t count, loff_t *ppos) status = -EFAULT; goto error; } - memcpy(kbuf, drvdata->read_buffer, bytes_remaining); + memcpy(drvdata->read_buffer, + kbuf, + bytes_remaining); drvdata->read_buffer_in_use = bytes_remaining; free_page((unsigned long)kbuf); } status = bytes_to_read; error: - up(&drvdata->sem); + mutex_unlock(&drvdata->sem); return status; } static ssize_t -hwicap_write(struct file *file, const char *buf, +hwicap_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { struct hwicap_drvdata *drvdata = file->private_data; @@ -435,8 +407,9 @@ hwicap_write(struct file *file, const char *buf, ssize_t len; ssize_t status; - if (down_interruptible(&drvdata->sem)) - return -ERESTARTSYS; + status = mutex_lock_interruptible(&drvdata->sem); + if (status) + return status; left += drvdata->write_buffer_in_use; @@ -465,7 +438,7 @@ hwicap_write(struct file *file, const char *buf, memcpy(kbuf, drvdata->write_buffer, drvdata->write_buffer_in_use); if (copy_from_user( - (((char *)kbuf) + (drvdata->write_buffer_in_use)), + (((char *)kbuf) + drvdata->write_buffer_in_use), buf + written, len - (drvdata->write_buffer_in_use))) { free_page((unsigned long)kbuf); @@ -508,7 +481,7 @@ hwicap_write(struct file *file, const char *buf, free_page((unsigned long)kbuf); status = written; error: - up(&drvdata->sem); + mutex_unlock(&drvdata->sem); return status; } @@ -519,8 +492,9 @@ static int hwicap_open(struct inode *inode, struct file *file) drvdata = container_of(inode->i_cdev, struct hwicap_drvdata, cdev); - if (down_interruptible(&drvdata->sem)) - return -ERESTARTSYS; + status = mutex_lock_interruptible(&drvdata->sem); + if (status) + return status; if (drvdata->is_open) { status = -EBUSY; @@ -539,7 +513,7 @@ static int hwicap_open(struct inode *inode, struct file *file) drvdata->is_open = 1; error: - up(&drvdata->sem); + mutex_unlock(&drvdata->sem); return status; } @@ -549,8 +523,7 @@ static int hwicap_release(struct inode *inode, struct file *file) int i; int status = 0; - if (down_interruptible(&drvdata->sem)) - return -ERESTARTSYS; + mutex_lock(&drvdata->sem); if (drvdata->write_buffer_in_use) { /* Flush write buffer. */ @@ -569,7 +542,7 @@ static int hwicap_release(struct inode *inode, struct file *file) error: drvdata->is_open = 0; - up(&drvdata->sem); + mutex_unlock(&drvdata->sem); return status; } @@ -592,31 +565,36 @@ static int __devinit hwicap_setup(struct device *dev, int id, dev_info(dev, "Xilinx icap port driver\n"); + mutex_lock(&icap_sem); + if (id < 0) { for (id = 0; id < HWICAP_DEVICES; id++) if (!probed_devices[id]) break; } if (id < 0 || id >= HWICAP_DEVICES) { + mutex_unlock(&icap_sem); dev_err(dev, "%s%i too large\n", DRIVER_NAME, id); return -EINVAL; } if (probed_devices[id]) { + mutex_unlock(&icap_sem); dev_err(dev, "cannot assign to %s%i; it is already in use\n", DRIVER_NAME, id); return -EBUSY; } probed_devices[id] = 1; + mutex_unlock(&icap_sem); devt = MKDEV(xhwicap_major, xhwicap_minor + id); - drvdata = kmalloc(sizeof(struct hwicap_drvdata), GFP_KERNEL); + drvdata = kzalloc(sizeof(struct hwicap_drvdata), GFP_KERNEL); if (!drvdata) { dev_err(dev, "Couldn't allocate device private record\n"); - return -ENOMEM; + retval = -ENOMEM; + goto failed0; } - memset((void *)drvdata, 0, sizeof(struct hwicap_drvdata)); dev_set_drvdata(dev, (void *)drvdata); if (!regs_res) { @@ -648,7 +626,7 @@ static int __devinit hwicap_setup(struct device *dev, int id, drvdata->config = config; drvdata->config_regs = config_regs; - init_MUTEX(&drvdata->sem); + mutex_init(&drvdata->sem); drvdata->is_open = 0; dev_info(dev, "ioremap %lx to %p with size %x\n", @@ -663,7 +641,7 @@ static int __devinit hwicap_setup(struct device *dev, int id, goto failed3; } /* devfs_mk_cdev(devt, S_IFCHR|S_IRUGO|S_IWUGO, DRIVER_NAME); */ - class_device_create(icap_class, NULL, devt, NULL, DRIVER_NAME); + device_create(icap_class, dev, devt, "%s%d", DRIVER_NAME, id); return 0; /* success */ failed3: @@ -675,6 +653,11 @@ static int __devinit hwicap_setup(struct device *dev, int id, failed1: kfree(drvdata); + failed0: + mutex_lock(&icap_sem); + probed_devices[id] = 0; + mutex_unlock(&icap_sem); + return retval; } @@ -699,14 +682,16 @@ static int __devexit hwicap_remove(struct device *dev) if (!drvdata) return 0; - class_device_destroy(icap_class, drvdata->devt); + device_destroy(icap_class, drvdata->devt); cdev_del(&drvdata->cdev); iounmap(drvdata->base_address); release_mem_region(drvdata->mem_start, drvdata->mem_size); kfree(drvdata); dev_set_drvdata(dev, NULL); - probed_devices[MINOR(dev->devt)-xhwicap_minor] = 0; + mutex_lock(&icap_sem); + probed_devices[MINOR(dev->devt)-xhwicap_minor] = 0; + mutex_unlock(&icap_sem); return 0; /* success */ } @@ -821,28 +806,29 @@ static struct of_platform_driver hwicap_of_driver = { }; /* Registration helpers to keep the number of #ifdefs to a minimum */ -static inline int __devinit hwicap_of_register(void) +static inline int __init hwicap_of_register(void) { pr_debug("hwicap: calling of_register_platform_driver()\n"); return of_register_platform_driver(&hwicap_of_driver); } -static inline void __devexit hwicap_of_unregister(void) +static inline void __exit hwicap_of_unregister(void) { of_unregister_platform_driver(&hwicap_of_driver); } #else /* CONFIG_OF */ /* CONFIG_OF not enabled; do nothing helpers */ -static inline int __devinit hwicap_of_register(void) { return 0; } -static inline void __devexit hwicap_of_unregister(void) { } +static inline int __init hwicap_of_register(void) { return 0; } +static inline void __exit hwicap_of_unregister(void) { } #endif /* CONFIG_OF */ -static int __devinit hwicap_module_init(void) +static int __init hwicap_module_init(void) { dev_t devt; int retval; icap_class = class_create(THIS_MODULE, "xilinx_config"); + mutex_init(&icap_sem); if (xhwicap_major) { devt = MKDEV(xhwicap_major, xhwicap_minor); @@ -883,7 +869,7 @@ static int __devinit hwicap_module_init(void) return retval; } -static void __devexit hwicap_module_cleanup(void) +static void __exit hwicap_module_cleanup(void) { dev_t devt = MKDEV(xhwicap_major, xhwicap_minor); diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.h b/drivers/char/xilinx_hwicap/xilinx_hwicap.h index ae771cac162..405fee7e189 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.h +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.h @@ -48,9 +48,9 @@ struct hwicap_drvdata { u8 write_buffer[4]; u32 read_buffer_in_use; /* Always in [0,3] */ u8 read_buffer[4]; - u32 mem_start; /* phys. address of the control registers */ - u32 mem_end; /* phys. address of the control registers */ - u32 mem_size; + resource_size_t mem_start;/* phys. address of the control registers */ + resource_size_t mem_end; /* phys. address of the control registers */ + resource_size_t mem_size; void __iomem *base_address;/* virt. address of the control registers */ struct device *dev; @@ -61,7 +61,7 @@ struct hwicap_drvdata { const struct config_registers *config_regs; void *private_data; bool is_open; - struct semaphore sem; + struct mutex sem; }; struct hwicap_driver_config { @@ -164,29 +164,29 @@ struct config_registers { #define XHI_DISABLED_AUTO_CRC 0x0000DEFCUL /** - * hwicap_type_1_read: Generates a Type 1 read packet header. - * @parameter: Register is the address of the register to be read back. + * hwicap_type_1_read - Generates a Type 1 read packet header. + * @reg: is the address of the register to be read back. * * Generates a Type 1 read packet header, which is used to indirectly * read registers in the configuration logic. This packet must then * be sent through the icap device, and a return packet received with * the information. **/ -static inline u32 hwicap_type_1_read(u32 Register) +static inline u32 hwicap_type_1_read(u32 reg) { return (XHI_TYPE_1 << XHI_TYPE_SHIFT) | - (Register << XHI_REGISTER_SHIFT) | + (reg << XHI_REGISTER_SHIFT) | (XHI_OP_READ << XHI_OP_SHIFT); } /** - * hwicap_type_1_write: Generates a Type 1 write packet header - * @parameter: Register is the address of the register to be read back. + * hwicap_type_1_write - Generates a Type 1 write packet header + * @reg: is the address of the register to be read back. **/ -static inline u32 hwicap_type_1_write(u32 Register) +static inline u32 hwicap_type_1_write(u32 reg) { return (XHI_TYPE_1 << XHI_TYPE_SHIFT) | - (Register << XHI_REGISTER_SHIFT) | + (reg << XHI_REGISTER_SHIFT) | (XHI_OP_WRITE << XHI_OP_SHIFT); } -- GitLab From 931506d3b2208362efc678ee863ee42a90755e89 Mon Sep 17 00:00:00 2001 From: Anantha Subramanyam Date: Thu, 28 Feb 2008 15:58:35 -0800 Subject: [PATCH 193/923] sata_svw: Add support for HT1100 SATA controller This patch adds support (including ATAPI DMA) for HT1100 (aka BCM11000) SATA controller. Signed-off-by: Anantha Subramanyam Signed-off-by: Jeff Garzik --- drivers/ata/sata_svw.c | 77 ++++++++++++++++++++++++++++++++++-------- 1 file changed, 63 insertions(+), 14 deletions(-) diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c index 69f651e0bc9..840d1c4a785 100644 --- a/drivers/ata/sata_svw.c +++ b/drivers/ata/sata_svw.c @@ -45,6 +45,8 @@ #include #include #include +#include +#include #include #ifdef CONFIG_PPC_OF @@ -59,6 +61,7 @@ enum { /* ap->flags bits */ K2_FLAG_SATA_8_PORTS = (1 << 24), K2_FLAG_NO_ATAPI_DMA = (1 << 25), + K2_FLAG_BAR_POS_3 = (1 << 26), /* Taskfile registers offsets */ K2_SATA_TF_CMD_OFFSET = 0x00, @@ -88,8 +91,10 @@ enum { /* Port stride */ K2_SATA_PORT_OFFSET = 0x100, - board_svw4 = 0, - board_svw8 = 1, + chip_svw4 = 0, + chip_svw8 = 1, + chip_svw42 = 2, /* bar 3 */ + chip_svw43 = 3, /* bar 5 */ }; static u8 k2_stat_check_status(struct ata_port *ap); @@ -97,10 +102,25 @@ static u8 k2_stat_check_status(struct ata_port *ap); static int k2_sata_check_atapi_dma(struct ata_queued_cmd *qc) { + u8 cmnd = qc->scsicmd->cmnd[0]; + if (qc->ap->flags & K2_FLAG_NO_ATAPI_DMA) return -1; /* ATAPI DMA not supported */ + else { + switch (cmnd) { + case READ_10: + case READ_12: + case READ_16: + case WRITE_10: + case WRITE_12: + case WRITE_16: + return 0; + + default: + return -1; + } - return 0; + } } static int k2_sata_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) @@ -354,7 +374,7 @@ static const struct ata_port_operations k2_sata_ops = { }; static const struct ata_port_info k2_port_info[] = { - /* board_svw4 */ + /* chip_svw4 */ { .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | K2_FLAG_NO_ATAPI_DMA, @@ -363,7 +383,7 @@ static const struct ata_port_info k2_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &k2_sata_ops, }, - /* board_svw8 */ + /* chip_svw8 */ { .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | K2_FLAG_NO_ATAPI_DMA | @@ -373,6 +393,24 @@ static const struct ata_port_info k2_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &k2_sata_ops, }, + /* chip_svw42 */ + { + .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | + ATA_FLAG_MMIO | K2_FLAG_BAR_POS_3, + .pio_mask = 0x1f, + .mwdma_mask = 0x07, + .udma_mask = ATA_UDMA6, + .port_ops = &k2_sata_ops, + }, + /* chip_svw43 */ + { + .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | + ATA_FLAG_MMIO, + .pio_mask = 0x1f, + .mwdma_mask = 0x07, + .udma_mask = ATA_UDMA6, + .port_ops = &k2_sata_ops, + }, }; static void k2_sata_setup_port(struct ata_ioports *port, void __iomem *base) @@ -402,7 +440,7 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en { &k2_port_info[ent->driver_data], NULL }; struct ata_host *host; void __iomem *mmio_base; - int n_ports, i, rc; + int n_ports, i, rc, bar_pos; if (!printed_version++) dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); @@ -416,6 +454,9 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en if (!host) return -ENOMEM; + bar_pos = 5; + if (ppi[0]->flags & K2_FLAG_BAR_POS_3) + bar_pos = 3; /* * If this driver happens to only be useful on Apple's K2, then * we should check that here as it has a normal Serverworks ID @@ -428,17 +469,23 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en * Check if we have resources mapped at all (second function may * have been disabled by firmware) */ - if (pci_resource_len(pdev, 5) == 0) + if (pci_resource_len(pdev, bar_pos) == 0) { + /* In IDE mode we need to pin the device to ensure that + pcim_release does not clear the busmaster bit in config + space, clearing causes busmaster DMA to fail on + ports 3 & 4 */ + pcim_pin_device(pdev); return -ENODEV; + } /* Request and iomap PCI regions */ - rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME); + rc = pcim_iomap_regions(pdev, 1 << bar_pos, DRV_NAME); if (rc == -EBUSY) pcim_pin_device(pdev); if (rc) return rc; host->iomap = pcim_iomap_table(pdev); - mmio_base = host->iomap[5]; + mmio_base = host->iomap[bar_pos]; /* different controllers have different number of ports - currently 4 or 8 */ /* All ports are on the same function. Multi-function device is no @@ -483,11 +530,13 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en * controller * */ static const struct pci_device_id k2_sata_pci_tbl[] = { - { PCI_VDEVICE(SERVERWORKS, 0x0240), board_svw4 }, - { PCI_VDEVICE(SERVERWORKS, 0x0241), board_svw4 }, - { PCI_VDEVICE(SERVERWORKS, 0x0242), board_svw8 }, - { PCI_VDEVICE(SERVERWORKS, 0x024a), board_svw4 }, - { PCI_VDEVICE(SERVERWORKS, 0x024b), board_svw4 }, + { PCI_VDEVICE(SERVERWORKS, 0x0240), chip_svw4 }, + { PCI_VDEVICE(SERVERWORKS, 0x0241), chip_svw4 }, + { PCI_VDEVICE(SERVERWORKS, 0x0242), chip_svw8 }, + { PCI_VDEVICE(SERVERWORKS, 0x024a), chip_svw4 }, + { PCI_VDEVICE(SERVERWORKS, 0x024b), chip_svw4 }, + { PCI_VDEVICE(SERVERWORKS, 0x0410), chip_svw42 }, + { PCI_VDEVICE(SERVERWORKS, 0x0411), chip_svw43 }, { } }; -- GitLab From 71791bee90dd29b292c7e55c1c00857578c912bd Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Mon, 25 Feb 2008 14:58:37 +1100 Subject: [PATCH 194/923] [POWERPC] spufs: fix order of sputrace thread IDs Currently, we get the following output from sputrace: [5.097935954] 1606: spufs_ps_nopfn__enter (thread = 1605, spu = -1) [5.097958164] 1606: spufs_ps_nopfn__insert (thread = 1605, spu = 15) [5.097973529] 1607: spufs_ps_nopfn__enter (thread = 1605, spu = -1) [5.097989174] 1607: spufs_ps_nopfn__insert (thread = 1605, spu = 14) Which leads me to believe that 160[67] is the current thread ID, and 1605 is the context backing the psmap. However, the 'current' and 'owner' tids are reversed - the 'current' tid is on the right. This change puts the current thread ID in the left-hand column instead, and renames the right to 'ctxthread'. Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spufs/sputrace.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/cell/spufs/sputrace.c b/arch/powerpc/platforms/cell/spufs/sputrace.c index 01974f7776e..79aa773f3c9 100644 --- a/arch/powerpc/platforms/cell/spufs/sputrace.c +++ b/arch/powerpc/platforms/cell/spufs/sputrace.c @@ -58,12 +58,12 @@ static int sputrace_sprint(char *tbuf, int n) ktime_to_timespec(ktime_sub(t->tstamp, sputrace_start)); return snprintf(tbuf, n, - "[%lu.%09lu] %d: %s (thread = %d, spu = %d)\n", + "[%lu.%09lu] %d: %s (ctxthread = %d, spu = %d)\n", (unsigned long) tv.tv_sec, (unsigned long) tv.tv_nsec, - t->owner_tid, - t->name, t->curr_tid, + t->name, + t->owner_tid, t->number); } @@ -188,6 +188,7 @@ struct spu_probe spu_probes[] = { { "spufs_ps_nopfn__insert", "%p %p", spu_context_event }, { "spu_acquire_saved__enter", "%p", spu_context_nospu_event }, { "destroy_spu_context__enter", "%p", spu_context_nospu_event }, + { "spufs_stop_callback__enter", "%p %p", spu_context_event }, }; static int __init sputrace_init(void) -- GitLab From 0aef45645174525ee6aa7baed247a130e052740d Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Fri, 29 Feb 2008 12:08:42 +0800 Subject: [PATCH 195/923] Blackfin Serial Driver: Fix bug - Only insert UART rx char in timer task. http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3910 Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 23 +++++++---------------- 1 file changed, 7 insertions(+), 16 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 2a411748579..0aa345b9a38 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -48,7 +48,7 @@ #define DMA_RX_XCOUNT 512 #define DMA_RX_YCOUNT (PAGE_SIZE / DMA_RX_XCOUNT) -#define DMA_RX_FLUSH_JIFFIES 5 +#define DMA_RX_FLUSH_JIFFIES (HZ / 50) #ifdef CONFIG_SERIAL_BFIN_DMA static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart); @@ -393,7 +393,6 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) { struct circ_buf *xmit = &uart->port.info->xmit; unsigned short ier; - int flags = 0; uart->tx_done = 0; @@ -491,9 +490,7 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart) { int x_pos, pos; - int flags = 0; - spin_lock_irqsave(&uart->port.lock, flags); uart->rx_dma_nrows = get_dma_curr_ycount(uart->rx_dma_channel); x_pos = get_dma_curr_xcount(uart->rx_dma_channel); uart->rx_dma_nrows = DMA_RX_YCOUNT - uart->rx_dma_nrows; @@ -509,7 +506,7 @@ void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart) bfin_serial_dma_rx_chars(uart); uart->rx_dma_buf.tail = uart->rx_dma_buf.head; } - spin_unlock_irqrestore(&uart->port.lock, flags); + uart->rx_dma_timer.expires = jiffies + DMA_RX_FLUSH_JIFFIES; add_timer(&(uart->rx_dma_timer)); } @@ -548,22 +545,16 @@ static irqreturn_t bfin_serial_dma_rx_int(int irq, void *dev_id) { struct bfin_serial_port *uart = dev_id; unsigned short irqstat; - int pos; - - uart->rx_dma_nrows = DMA_RX_YCOUNT - - get_dma_curr_ycount(uart->rx_dma_channel); - pos = DMA_RX_XCOUNT * uart->rx_dma_nrows; - if (pos != uart->rx_dma_buf.tail) { - uart->rx_dma_buf.head = pos; - bfin_serial_dma_rx_chars(uart); - uart->rx_dma_buf.tail = uart->rx_dma_buf.head; - } spin_lock(&uart->port.lock); irqstat = get_dma_curr_irqstat(uart->rx_dma_channel); clear_dma_irqstat(uart->rx_dma_channel); - spin_unlock(&uart->port.lock); + + del_timer(&(uart->rx_dma_timer)); + uart->rx_dma_timer.expires = jiffies; + add_timer(&(uart->rx_dma_timer)); + return IRQ_HANDLED; } #endif -- GitLab From fae9ca791507876c3ccaa8ab686b2ce42dc7a560 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 29 Feb 2008 15:16:48 +1100 Subject: [PATCH 196/923] [POWERPC] spufs: synchronize IRQ when disabling There is a small race between the context save procedure and the SPU interrupt handling, where we expect all interrupt processing to have finished after disabling them, while an interrupt is still being processed on another CPU. The obvious fix is to call synchronize_irq() after disabling the interrupts at the start of the context save procedure to make sure we never access the SPU any more during an ongoing save or even after that. Thanks to Benjamin Herrenschmidt for pointing this out. Acked-by: Benjamin Herrenschmidt Signed-off-by: Arnd Bergmann Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spufs/switch.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c index 6f5886c7b1f..e9dc7a55d1b 100644 --- a/arch/powerpc/platforms/cell/spufs/switch.c +++ b/arch/powerpc/platforms/cell/spufs/switch.c @@ -34,6 +34,7 @@ #include #include +#include #include #include #include @@ -117,6 +118,8 @@ static inline void disable_interrupts(struct spu_state *csa, struct spu *spu) * Write INT_MASK_class1 with value of 0. * Save INT_Mask_class2 in CSA. * Write INT_MASK_class2 with value of 0. + * Synchronize all three interrupts to be sure + * we no longer execute a handler on another CPU. */ spin_lock_irq(&spu->register_lock); if (csa) { @@ -129,6 +132,9 @@ static inline void disable_interrupts(struct spu_state *csa, struct spu *spu) spu_int_mask_set(spu, 2, 0ul); eieio(); spin_unlock_irq(&spu->register_lock); + synchronize_irq(spu->irqs[0]); + synchronize_irq(spu->irqs[1]); + synchronize_irq(spu->irqs[2]); } static inline void set_watchdog_timer(struct spu_state *csa, struct spu *spu) -- GitLab From cc4b7c1814c9ad375e8167ea4a9ec4a0ec1ada04 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 26 Feb 2008 07:01:56 +0100 Subject: [PATCH 197/923] [POWERPC] spufs: invalidate SLB translation before adding a new entry When we replace an SLB entry in the MFC after using up all the available entries, there is a short window in which an incorrect entry is marked as valid. The problem is that the 'valid' bit is stored in the ESID, which is always written after the VSID. Overwriting the VSID first will make the original ESID entry point to the new VSID, which means that any concurrent DMA accessing the old ESID ends up being redirected to the new virtual address. A few cycles later, we write the new ESID and everything is fine again. That race can be closed by writing a zero entry to the ESID first, which makes sure that the VSID is not accessed until we write the new ESID. Note that we don't actually need to invalidate the SLB entry using the invalidation register, which would also flush any ERAT entries for that segment, because the segment translation does not become invalid but is only removed from the SLB cache. Signed-off-by: Arnd Bergmann Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spu_base.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 87eb07f94c5..cfc28e93c82 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -148,7 +148,11 @@ static inline void spu_load_slb(struct spu *spu, int slbe, struct spu_slb *slb) __func__, slbe, slb->vsid, slb->esid); out_be64(&priv2->slb_index_W, slbe); + /* set invalid before writing vsid */ + out_be64(&priv2->slb_esid_RW, 0); + /* now it's safe to write the vsid */ out_be64(&priv2->slb_vsid_RW, slb->vsid); + /* setting the new esid makes the entry valid again */ out_be64(&priv2->slb_esid_RW, slb->esid); } -- GitLab From c92a1acb675058375cc508ad024c33358b42d766 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 28 Feb 2008 06:06:30 +0100 Subject: [PATCH 198/923] [POWERPC] spufs: serialize SLB invalidation against SLB loading There is a potential race between flushes of the entire SLB in the MFC and the point where new entries are being established. The problem is that we might put a ESID entry into the MFC SLB when the VSID entry has just been cleared by the global flush. This can be circumvented by holding the register_lock throughout both the flushing and the creation of SLB entries. Signed-off-by: Arnd Bergmann Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spu_base.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index cfc28e93c82..712001f6b7d 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -81,9 +81,12 @@ struct spu_slb { void spu_invalidate_slbs(struct spu *spu) { struct spu_priv2 __iomem *priv2 = spu->priv2; + unsigned long flags; + spin_lock_irqsave(&spu->register_lock, flags); if (spu_mfc_sr1_get(spu) & MFC_STATE1_RELOCATE_MASK) out_be64(&priv2->slb_invalidate_all_W, 0UL); + spin_unlock_irqrestore(&spu->register_lock, flags); } EXPORT_SYMBOL_GPL(spu_invalidate_slbs); @@ -294,9 +297,11 @@ void spu_setup_kernel_slbs(struct spu *spu, struct spu_lscsa *lscsa, nr_slbs++; } + spin_lock_irq(&spu->register_lock); /* Add the set of SLBs */ for (i = 0; i < nr_slbs; i++) spu_load_slb(spu, i, &slbs[i]); + spin_unlock_irq(&spu->register_lock); } EXPORT_SYMBOL_GPL(spu_setup_kernel_slbs); @@ -341,13 +346,14 @@ spu_irq_class_1(int irq, void *data) if (stat & CLASS1_STORAGE_FAULT_INTR) spu_mfc_dsisr_set(spu, 0ul); spu_int_stat_clear(spu, 1, stat); - spin_unlock(&spu->register_lock); - pr_debug("%s: %lx %lx %lx %lx\n", __FUNCTION__, mask, stat, - dar, dsisr); if (stat & CLASS1_SEGMENT_FAULT_INTR) __spu_trap_data_seg(spu, dar); + spin_unlock(&spu->register_lock); + pr_debug("%s: %lx %lx %lx %lx\n", __FUNCTION__, mask, stat, + dar, dsisr); + if (stat & CLASS1_STORAGE_FAULT_INTR) __spu_trap_data_map(spu, dar, dsisr); -- GitLab From 1bd960ee2b1231759bd485aad0fa483c2f793a3b Mon Sep 17 00:00:00 2001 From: Josef Jeff Sipek Date: Fri, 29 Feb 2008 13:58:40 +1100 Subject: [PATCH 199/923] [XFS] If you mount an XFS filesystem with no mount options at all, then the "ikeep" option is set rather than "noikeep". This regression was introduced in 970451. With no mount options specified, xfs_parseargs() does the following: int ikeep = 0; args->flags |= XFSMNT_BARRIER; args->flags2 |= XFSMNT2_COMPAT_IOSIZE; if (!options) goto done; It only sets the above two options by default and before, it also used to set XFSMNT_IDELETE by default. If options are specified, then if (!(args->flags & XFSMNT_DMAPI) && !ikeep) args->flags |= XFSMNT_IDELETE; is executed later on which is skipped by the "goto done;" above. The solution is to invert the logic. SGI-PV: 977771 SGI-Modid: xfs-linux-melb:xfs-kern:30590a Signed-off-by: Niv Sardi Signed-off-by: Barry Naujok Signed-off-by: Josef 'Jeff' Sipek Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_super.c | 14 +++++++------- fs/xfs/xfs_clnt.h | 2 +- fs/xfs/xfs_ialloc.c | 2 +- fs/xfs/xfs_mount.h | 2 +- fs/xfs/xfs_vfsops.c | 4 ++-- 5 files changed, 12 insertions(+), 12 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index 21dfc9da235..8831d951879 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -171,7 +171,7 @@ xfs_parseargs( char *this_char, *value, *eov; int dsunit, dswidth, vol_dsunit, vol_dswidth; int iosize; - int ikeep = 0; + int dmapi_implies_ikeep = 1; args->flags |= XFSMNT_BARRIER; args->flags2 |= XFSMNT2_COMPAT_IOSIZE; @@ -302,10 +302,10 @@ xfs_parseargs( } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) { args->flags &= ~XFSMNT_BARRIER; } else if (!strcmp(this_char, MNTOPT_IKEEP)) { - ikeep = 1; - args->flags &= ~XFSMNT_IDELETE; + args->flags |= XFSMNT_IKEEP; } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) { - args->flags |= XFSMNT_IDELETE; + dmapi_implies_ikeep = 0; + args->flags &= ~XFSMNT_IKEEP; } else if (!strcmp(this_char, MNTOPT_LARGEIO)) { args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE; } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) { @@ -410,8 +410,8 @@ xfs_parseargs( * Note that if "ikeep" or "noikeep" mount options are * supplied, then they are honored. */ - if (!(args->flags & XFSMNT_DMAPI) && !ikeep) - args->flags |= XFSMNT_IDELETE; + if ((args->flags & XFSMNT_DMAPI) && dmapi_implies_ikeep) + args->flags |= XFSMNT_IKEEP; if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { if (dsunit) { @@ -446,6 +446,7 @@ xfs_showargs( { static struct proc_xfs_info xfs_info_set[] = { /* the few simple ones we can get from the mount struct */ + { XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP }, { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC }, { XFS_MOUNT_INO64, "," MNTOPT_INO64 }, { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN }, @@ -461,7 +462,6 @@ xfs_showargs( }; static struct proc_xfs_info xfs_info_unset[] = { /* the few simple ones we can get from the mount struct */ - { XFS_MOUNT_IDELETE, "," MNTOPT_IKEEP }, { XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO }, { XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER }, { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE }, diff --git a/fs/xfs/xfs_clnt.h b/fs/xfs/xfs_clnt.h index d16c1b97107..d5d1e60ee22 100644 --- a/fs/xfs/xfs_clnt.h +++ b/fs/xfs/xfs_clnt.h @@ -86,7 +86,7 @@ struct xfs_mount_args { #define XFSMNT_NOUUID 0x01000000 /* Ignore fs uuid */ #define XFSMNT_DMAPI 0x02000000 /* enable dmapi/xdsm */ #define XFSMNT_BARRIER 0x04000000 /* use write barriers */ -#define XFSMNT_IDELETE 0x08000000 /* inode cluster delete */ +#define XFSMNT_IKEEP 0x08000000 /* inode cluster delete */ #define XFSMNT_SWALLOC 0x10000000 /* turn on stripe width * allocation */ #define XFSMNT_DIRSYNC 0x40000000 /* sync creat,link,unlink,rename diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index c5836b951d0..db9d5fa600a 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -1053,7 +1053,7 @@ xfs_difree( /* * When an inode cluster is free, it becomes eligible for removal */ - if ((mp->m_flags & XFS_MOUNT_IDELETE) && + if (!(mp->m_flags & XFS_MOUNT_IKEEP) && (rec.ir_freecount == XFS_IALLOC_INODES(mp))) { *delete = 1; diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index f7c620ec6e6..1d8a4728d84 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -366,7 +366,7 @@ typedef struct xfs_mount { #define XFS_MOUNT_SMALL_INUMS (1ULL << 15) /* users wants 32bit inodes */ #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ #define XFS_MOUNT_BARRIER (1ULL << 17) -#define XFS_MOUNT_IDELETE (1ULL << 18) /* delete empty inode clusters*/ +#define XFS_MOUNT_IKEEP (1ULL << 18) /* keep empty inode clusters*/ #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width * allocation */ #define XFS_MOUNT_RDONLY (1ULL << 20) /* read-only fs */ diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c index 413587f0215..7321304a69c 100644 --- a/fs/xfs/xfs_vfsops.c +++ b/fs/xfs/xfs_vfsops.c @@ -281,8 +281,8 @@ xfs_start_flags( mp->m_readio_log = mp->m_writeio_log = ap->iosizelog; } - if (ap->flags & XFSMNT_IDELETE) - mp->m_flags |= XFS_MOUNT_IDELETE; + if (ap->flags & XFSMNT_IKEEP) + mp->m_flags |= XFS_MOUNT_IKEEP; if (ap->flags & XFSMNT_DIRSYNC) mp->m_flags |= XFS_MOUNT_DIRSYNC; if (ap->flags & XFSMNT_ATTR2) -- GitLab From be71716e464f4ea38f08034dc666f2feb55535d9 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 28 Feb 2008 20:38:15 -0800 Subject: [PATCH 200/923] [SPARC64]: Adjust kernel PC validation test in fault handler. Because of the new futex validation init handler, we have to accept faults in init section text as well as the normal kernel text. Thanks to Tom Callaway for the bug report. Signed-off-by: David S. Miller --- arch/sparc64/mm/fault.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index 91836336028..2650d0d33ac 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -286,7 +286,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) unsigned long tpc = regs->tpc; /* Sanity check the PC. */ - if ((tpc >= KERNBASE && tpc < (unsigned long) _etext) || + if ((tpc >= KERNBASE && tpc < (unsigned long) __init_end) || (tpc >= MODULES_VADDR && tpc < MODULES_END)) { /* Valid, no problems... */ } else { -- GitLab From 2a58aa33daef37134c8a43dca0b7578c3fa7f993 Mon Sep 17 00:00:00 2001 From: Andre Detsch Date: Mon, 25 Feb 2008 15:07:42 -0300 Subject: [PATCH 201/923] [POWERPC] spufs: fix use time accounting on SPE-overcommit The spu_runcntl_RW register is restored within spu_restore function. So, at the end of spu_bind_context, the SPU context is not just loaded, but running. This change corrects the state switch to account the time as USER. Signed-off-by: Andre Detsch Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spufs/sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 3a5972117de..5d5f680cd0b 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -246,7 +246,7 @@ static void spu_bind_context(struct spu *spu, struct spu_context *ctx) spu_switch_notify(spu, ctx); ctx->state = SPU_STATE_RUNNABLE; - spuctx_switch_state(ctx, SPU_UTIL_IDLE_LOADED); + spuctx_switch_state(ctx, SPU_UTIL_USER); } /* -- GitLab From c8edc89d24546c834d7f595663afd14602855c02 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 28 Feb 2008 21:46:59 -0800 Subject: [PATCH 202/923] [SPARC]: Mark linux_sparc_{fpu,chips} static. Caught by sparse. Signed-off-by: David S. Miller --- arch/sparc/kernel/cpu.c | 4 ++-- arch/sparc64/kernel/cpu.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c index 259a559d4ce..e7a0edfc1a3 100644 --- a/arch/sparc/kernel/cpu.c +++ b/arch/sparc/kernel/cpu.c @@ -32,7 +32,7 @@ struct cpu_fp_info { /* In order to get the fpu type correct, you need to take the IDPROM's * machine type value into consideration too. I will fix this. */ -struct cpu_fp_info linux_sparc_fpu[] = { +static struct cpu_fp_info linux_sparc_fpu[] = { { 0, 0, "Fujitsu MB86910 or Weitek WTL1164/5"}, { 0, 1, "Fujitsu MB86911 or Weitek WTL1164/5 or LSI L64831"}, { 0, 2, "LSI Logic L64802 or Texas Instruments ACT8847"}, @@ -76,7 +76,7 @@ struct cpu_fp_info linux_sparc_fpu[] = { #define NSPARCFPU ARRAY_SIZE(linux_sparc_fpu) -struct cpu_iu_info linux_sparc_chips[] = { +static struct cpu_iu_info linux_sparc_chips[] = { /* Sun4/100, 4/200, SLC */ { 0, 0, "Fujitsu MB86900/1A or LSI L64831 SparcKIT-40"}, /* borned STP1012PGA */ diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c index e43db73f2b9..dd5d28e3d79 100644 --- a/arch/sparc64/kernel/cpu.c +++ b/arch/sparc64/kernel/cpu.c @@ -30,7 +30,7 @@ struct cpu_fp_info { char* fp_name; }; -struct cpu_fp_info linux_sparc_fpu[] = { +static struct cpu_fp_info linux_sparc_fpu[] = { { 0x17, 0x10, 0, "UltraSparc I integrated FPU"}, { 0x22, 0x10, 0, "UltraSparc I integrated FPU"}, { 0x17, 0x11, 0, "UltraSparc II integrated FPU"}, @@ -46,7 +46,7 @@ struct cpu_fp_info linux_sparc_fpu[] = { #define NSPARCFPU ARRAY_SIZE(linux_sparc_fpu) -struct cpu_iu_info linux_sparc_chips[] = { +static struct cpu_iu_info linux_sparc_chips[] = { { 0x17, 0x10, "TI UltraSparc I (SpitFire)"}, { 0x22, 0x10, "TI UltraSparc I (SpitFire)"}, { 0x17, 0x11, "TI UltraSparc II (BlackBird)"}, -- GitLab From 7729d74ed5099021f79ee8ecfa676829b5bac796 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 28 Feb 2008 21:53:20 -0800 Subject: [PATCH 203/923] [SPARC]: Add reboot_command[] extern decl to asm/system.h Kill off some sparse warnings. Signed-off-by: David S. Miller --- arch/sparc/kernel/process.c | 2 -- arch/sparc64/kernel/process.c | 2 -- include/asm-sparc/system.h | 2 ++ include/asm-sparc64/system.h | 2 ++ 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c index 0bd69d0b5cd..70c0dd22491 100644 --- a/arch/sparc/kernel/process.c +++ b/arch/sparc/kernel/process.c @@ -139,8 +139,6 @@ void cpu_idle(void) #endif -extern char reboot_command []; - /* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */ void machine_halt(void) { diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c index 2aafce7dfc0..e116e38b160 100644 --- a/arch/sparc64/kernel/process.c +++ b/arch/sparc64/kernel/process.c @@ -114,8 +114,6 @@ void cpu_idle(void) } } -extern char reboot_command []; - void machine_halt(void) { sstate_halt(); diff --git a/include/asm-sparc/system.h b/include/asm-sparc/system.h index 45e47c159a6..4e08210cd4c 100644 --- a/include/asm-sparc/system.h +++ b/include/asm-sparc/system.h @@ -44,6 +44,8 @@ extern enum sparc_cpu sparc_cpu_model; #define SUN4M_NCPUS 4 /* Architectural limit of sun4m. */ +extern char reboot_command[]; + extern struct thread_info *current_set[NR_CPUS]; extern unsigned long empty_bad_page; diff --git a/include/asm-sparc64/system.h b/include/asm-sparc64/system.h index ed91a5d8d4f..53eae091a17 100644 --- a/include/asm-sparc64/system.h +++ b/include/asm-sparc64/system.h @@ -30,6 +30,8 @@ enum sparc_cpu { #define ARCH_SUN4C_SUN4 0 #define ARCH_SUN4 0 +extern char reboot_command[]; + /* These are here in an effort to more fully work around Spitfire Errata * #51. Essentially, if a memory barrier occurs soon after a mispredicted * branch, the chip can stop executing instructions until a trap occurs. -- GitLab From b84f08d49188a18d965fab8463c9cb679785eb39 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 18 Feb 2008 12:36:11 +0100 Subject: [PATCH 204/923] [ALSA] hda-codec - Fix Master volume on HP dv8000 HP dv8000 laptop has a problem with Master volume. It's due to the connection of the widget 0x13. When it's connected from the analog amp mixer (0x19), it works as expected mysteriously (ALSA bug#3775): https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3775 Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_conexant.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index f7cd3a804b1..7206b30cbf9 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -1230,6 +1230,11 @@ static struct hda_verb cxt5047_toshiba_init_verbs[] = { static struct hda_verb cxt5047_hp_init_verbs[] = { /* pin sensing on HP jack */ {0x13, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | CONEXANT_HP_EVENT}, + /* 0x13 is actually shared by both HP and speaker; + * setting the connection to 0 (=0x19) makes the master volume control + * working mysteriouslly... + */ + {0x13, AC_VERB_SET_CONNECT_SEL, 0x0}, /* Record selector: Ext Mic */ {0x12, AC_VERB_SET_CONNECT_SEL,0x03}, {0x19, AC_VERB_SET_AMP_GAIN_MUTE, -- GitLab From ee47fd12d73706edb2a10efd05d5eed15b4d1e08 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Wed, 20 Feb 2008 17:13:15 +0100 Subject: [PATCH 205/923] [ALSA] ASoC: Fix TLV320AIC3X PLL divider table for 64 kHz rate Signed-off-by: Jarkko Nikula Signed-off-by: Takashi Iwai --- sound/soc/codecs/tlv320aic3x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c index 710e0287ef8..569ecaca0e8 100644 --- a/sound/soc/codecs/tlv320aic3x.c +++ b/sound/soc/codecs/tlv320aic3x.c @@ -681,8 +681,8 @@ static const struct aic3x_rate_divs aic3x_divs[] = { {22579200, 48000, 48000, 0x0, 8, 7075}, {33868800, 48000, 48000, 0x0, 5, 8049}, /* 64k */ - {22579200, 96000, 96000, 0x1, 8, 7075}, - {33868800, 96000, 96000, 0x1, 5, 8049}, + {22579200, 64000, 96000, 0x1, 8, 7075}, + {33868800, 64000, 96000, 0x1, 5, 8049}, /* 88.2k */ {22579200, 88200, 88200, 0x0, 8, 0}, {33868800, 88200, 88200, 0x0, 5, 3333}, -- GitLab From d513202efd5bb9974545ef1c7f951467b21eb3a5 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 25 Feb 2008 11:01:00 +0100 Subject: [PATCH 206/923] [ALSA] usb-audio: add workaround for broken E-Mu frequency feedback Add a workaround for the feedback pipe of E-Mu 0202/0404 USB devices that reports the number of samples per packet instead of the number of samples per microframe. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/usb/usbaudio.c | 38 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 36 insertions(+), 2 deletions(-) diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c index 8fa93566570..675672f313b 100644 --- a/sound/usb/usbaudio.c +++ b/sound/usb/usbaudio.c @@ -479,6 +479,33 @@ static int retire_playback_sync_urb_hs(struct snd_usb_substream *subs, return 0; } +/* + * process after E-Mu 0202/0404 high speed playback sync complete + * + * These devices return the number of samples per packet instead of the number + * of samples per microframe. + */ +static int retire_playback_sync_urb_hs_emu(struct snd_usb_substream *subs, + struct snd_pcm_runtime *runtime, + struct urb *urb) +{ + unsigned int f; + unsigned long flags; + + if (urb->iso_frame_desc[0].status == 0 && + urb->iso_frame_desc[0].actual_length == 4) { + f = combine_quad((u8*)urb->transfer_buffer) & 0x0fffffff; + f >>= subs->datainterval; + if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) { + spin_lock_irqsave(&subs->lock, flags); + subs->freqm = f; + spin_unlock_irqrestore(&subs->lock, flags); + } + } + + return 0; +} + /* determine the number of frames in the next packet */ static int snd_usb_audio_next_packet_size(struct snd_usb_substream *subs) { @@ -2219,10 +2246,17 @@ static void init_substream(struct snd_usb_stream *as, int stream, struct audiofo subs->stream = as; subs->direction = stream; subs->dev = as->chip->dev; - if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) + if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) { subs->ops = audio_urb_ops[stream]; - else + } else { subs->ops = audio_urb_ops_high_speed[stream]; + switch (as->chip->usb_id) { + case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ + case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */ + subs->ops.retire_sync = retire_playback_sync_urb_hs_emu; + break; + } + } snd_pcm_set_ops(as->pcm, stream, stream == SNDRV_PCM_STREAM_PLAYBACK ? &snd_usb_playback_ops : &snd_usb_capture_ops); -- GitLab From 20cde9e8f83711dca532c49605914d50292d9ce5 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 25 Feb 2008 11:04:41 +0100 Subject: [PATCH 207/923] [ALSA] sb8: fix SB 1.0 capture DMA programming Fix a wrong version check that would cause an invalid command to be sent to SB 1.0 chips. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/isa/sb/sb8_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/isa/sb/sb8_main.c b/sound/isa/sb/sb8_main.c index 6304c3a89ba..fe03bb82053 100644 --- a/sound/isa/sb/sb8_main.c +++ b/sound/isa/sb/sb8_main.c @@ -277,7 +277,7 @@ static int snd_sb8_capture_prepare(struct snd_pcm_substream *substream) } else { snd_sbdsp_command(chip, 256 - runtime->rate_den); } - if (chip->capture_format != SB_DSP_OUTPUT) { + if (chip->capture_format != SB_DSP_INPUT) { count--; snd_sbdsp_command(chip, SB_DSP_BLOCK_SIZE); snd_sbdsp_command(chip, count & 0xff); -- GitLab From fb304ce53afbb653bfa67cc81ee9cf06edcbf68e Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 25 Feb 2008 15:32:01 +0100 Subject: [PATCH 208/923] [ALSA] hda-codec - Fix AD1988 capture elements The some indices of capture elements of AD1988 are wrongly assigned. This patch fixes it. See ALSA bug#3795 https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3795 Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_analog.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index 19f08846d6f..c8649282c2c 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -1778,9 +1778,9 @@ static hda_nid_t ad1988_capsrc_nids[3] = { static struct hda_input_mux ad1988_6stack_capture_source = { .num_items = 5, .items = { - { "Front Mic", 0x0 }, - { "Line", 0x1 }, - { "Mic", 0x4 }, + { "Front Mic", 0x1 }, /* port-B */ + { "Line", 0x2 }, /* port-C */ + { "Mic", 0x4 }, /* port-E */ { "CD", 0x5 }, { "Mix", 0x9 }, }, @@ -1789,7 +1789,7 @@ static struct hda_input_mux ad1988_6stack_capture_source = { static struct hda_input_mux ad1988_laptop_capture_source = { .num_items = 3, .items = { - { "Mic/Line", 0x0 }, + { "Mic/Line", 0x1 }, /* port-B */ { "CD", 0x5 }, { "Mix", 0x9 }, }, -- GitLab From 3f1eeaed2c0dc6c787a47ae7a6c774589a04a3a2 Mon Sep 17 00:00:00 2001 From: Tony Vroon Date: Mon, 25 Feb 2008 16:44:13 +0100 Subject: [PATCH 209/923] [ALSA] hda-codec - Add Fujitsu Lifebook E8410 to quirk table Add the proper model entry for Fujitsu Lifebook E8410 with ALC262 codec. From: Tony Vroon Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 777f8c01ca7..1534f0866f7 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -9238,6 +9238,7 @@ static struct snd_pci_quirk alc262_cfg_tbl[] = { SND_PCI_QUIRK(0x104d, 0x900e, "Sony ASSAMD", ALC262_SONY_ASSAMD), SND_PCI_QUIRK(0x104d, 0x9015, "Sony 0x9015", ALC262_SONY_ASSAMD), SND_PCI_QUIRK(0x10cf, 0x1397, "Fujitsu", ALC262_FUJITSU), + SND_PCI_QUIRK(0x10cf, 0x142d, "Fujitsu Lifebook E8410", ALC262_FUJITSU), SND_PCI_QUIRK(0x144d, 0xc032, "Samsung Q1 Ultra", ALC262_ULTRA), SND_PCI_QUIRK(0x17ff, 0x0560, "Benq ED8", ALC262_BENQ_ED8), SND_PCI_QUIRK(0x17ff, 0x058d, "Benq T31-16", ALC262_BENQ_T31), -- GitLab From b930b9f41d5e9eadd9041f273c4d6d18e7061d05 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Tue, 26 Feb 2008 08:40:57 +0100 Subject: [PATCH 210/923] [ALSA] oxygen: add owner field I forgot to set the module owner for the HiFier/Xonar models. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/pci/oxygen/hifier.c | 1 + sound/pci/oxygen/virtuoso.c | 1 + 2 files changed, 2 insertions(+) diff --git a/sound/pci/oxygen/hifier.c b/sound/pci/oxygen/hifier.c index 3ea1f05228a..666f69a3312 100644 --- a/sound/pci/oxygen/hifier.c +++ b/sound/pci/oxygen/hifier.c @@ -150,6 +150,7 @@ static const struct oxygen_model model_hifier = { .shortname = "C-Media CMI8787", .longname = "C-Media Oxygen HD Audio", .chip = "CMI8788", + .owner = THIS_MODULE, .init = hifier_init, .control_filter = hifier_control_filter, .mixer_init = hifier_mixer_init, diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c index 40e92f5cd69..d163397b85c 100644 --- a/sound/pci/oxygen/virtuoso.c +++ b/sound/pci/oxygen/virtuoso.c @@ -389,6 +389,7 @@ static const struct oxygen_model model_xonar = { .shortname = "Asus AV200", .longname = "Asus Virtuoso 200", .chip = "AV200", + .owner = THIS_MODULE, .init = xonar_init, .control_filter = xonar_control_filter, .mixer_init = xonar_mixer_init, -- GitLab From 0b167bf456d4af58103e2072bc4bd5733e7e7579 Mon Sep 17 00:00:00 2001 From: Andrew Paprocki Date: Sun, 3 Feb 2008 10:15:44 +0100 Subject: [PATCH 211/923] [ALSA] hda_intel - Add model quirk for Albatron KI690-AM2 motherboard This adds a quirk to the Realtek ALC883 table for the Albatron KI690-AM2 motherboard to use the 6stack-dig model. Signed-off-by: Andrew Paprocki Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 1534f0866f7..b092bd47e56 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -7639,6 +7639,7 @@ static struct snd_pci_quirk alc883_cfg_tbl[] = { SND_PCI_QUIRK(0x17aa, 0x3bfc, "Lenovo NB0763", ALC883_LENOVO_NB0763), SND_PCI_QUIRK(0x17aa, 0x3bfd, "Lenovo NB0763", ALC883_LENOVO_NB0763), SND_PCI_QUIRK(0x17c0, 0x4071, "MEDION MD2", ALC883_MEDION_MD2), + SND_PCI_QUIRK(0x17f2, 0x5000, "Albatron KI690-AM2", ALC883_6ST_DIG), SND_PCI_QUIRK(0x1991, 0x5625, "Haier W66", ALC883_HAIER_W66), SND_PCI_QUIRK(0x8086, 0xd601, "D102GGC", ALC883_3ST_6ch), {} -- GitLab From b6a370b6fb3114f9f7fc8a393c3ffc2236d7cbf1 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 4 Feb 2008 14:00:53 +0100 Subject: [PATCH 212/923] [ALSA] intel8x0 - Add quirk for Acer Travelmate 2310 Added ac97_quirk=hp-only for Acer Travelmate 2310. ALSA bug#3656 https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3656 Signed-off-by: Takashi Iwai --- sound/pci/intel8x0.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index 061072c7db0..c5ef12ae3c5 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -1738,6 +1738,12 @@ static struct ac97_quirk ac97_quirks[] __devinitdata = { .name = "IBM NetVista A30p", /* AD1981B */ .type = AC97_TUNE_HP_ONLY }, + { + .subvendor = 0x1025, + .subdevice = 0x0082, + .name = "Acer Travelmate 2310", + .type = AC97_TUNE_HP_ONLY + }, { .subvendor = 0x1025, .subdevice = 0x0083, -- GitLab From 31bffaa9435f14b35a8e23ed2005925f65ec6d9b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 27 Feb 2008 16:10:44 +0100 Subject: [PATCH 213/923] [ALSA] hda-codec - Fix mixer names of realtek codecs to adapt mater controls Some models like eeepc ep20 have invalid mixer names that aren't handled properly by virtual master controls. Rename them to the proper names. Also fixed some typos in the mixer names but they are not compiled in right now. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index b092bd47e56..51871c68457 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -3973,8 +3973,8 @@ static struct snd_kcontrol_new alc260_fujitsu_mixer[] = { ALC_PIN_MODE("Mic/Line Jack Mode", 0x12, ALC_PIN_DIR_IN), HDA_CODEC_VOLUME("Beep Playback Volume", 0x07, 0x05, HDA_INPUT), HDA_CODEC_MUTE("Beep Playback Switch", 0x07, 0x05, HDA_INPUT), - HDA_CODEC_VOLUME("Internal Speaker Playback Volume", 0x09, 0x0, HDA_OUTPUT), - HDA_BIND_MUTE("Internal Speaker Playback Switch", 0x09, 2, HDA_INPUT), + HDA_CODEC_VOLUME("Speaker Playback Volume", 0x09, 0x0, HDA_OUTPUT), + HDA_BIND_MUTE("Speaker Playback Switch", 0x09, 2, HDA_INPUT), { } /* end */ }; @@ -4005,9 +4005,9 @@ static struct snd_kcontrol_new alc260_acer_mixer[] = { HDA_CODEC_VOLUME("Master Playback Volume", 0x08, 0x0, HDA_OUTPUT), HDA_BIND_MUTE("Master Playback Switch", 0x08, 2, HDA_INPUT), ALC_PIN_MODE("Headphone Jack Mode", 0x0f, ALC_PIN_DIR_INOUT), - HDA_CODEC_VOLUME_MONO("Mono Speaker Playback Volume", 0x0a, 1, 0x0, + HDA_CODEC_VOLUME_MONO("Speaker Playback Volume", 0x0a, 1, 0x0, HDA_OUTPUT), - HDA_BIND_MUTE_MONO("Mono Speaker Playback Switch", 0x0a, 1, 2, + HDA_BIND_MUTE_MONO("Speaker Playback Switch", 0x0a, 1, 2, HDA_INPUT), HDA_CODEC_VOLUME("CD Playback Volume", 0x07, 0x04, HDA_INPUT), HDA_CODEC_MUTE("CD Playback Switch", 0x07, 0x04, HDA_INPUT), @@ -8103,7 +8103,7 @@ static struct snd_kcontrol_new alc262_base_mixer[] = { HDA_CODEC_MUTE("Front Mic Playback Switch", 0x0b, 0x01, HDA_INPUT), HDA_CODEC_VOLUME("Front Mic Boost", 0x19, 0, HDA_INPUT), /* HDA_CODEC_VOLUME("PC Beep Playback Volume", 0x0b, 0x05, HDA_INPUT), - HDA_CODEC_MUTE("PC Beelp Playback Switch", 0x0b, 0x05, HDA_INPUT), */ + HDA_CODEC_MUTE("PC Beep Playback Switch", 0x0b, 0x05, HDA_INPUT), */ HDA_CODEC_VOLUME("Headphone Playback Volume", 0x0D, 0x0, HDA_OUTPUT), HDA_CODEC_MUTE("Headphone Playback Switch", 0x15, 0x0, HDA_OUTPUT), HDA_CODEC_VOLUME_MONO("Mono Playback Volume", 0x0e, 2, 0x0, HDA_OUTPUT), @@ -8125,7 +8125,7 @@ static struct snd_kcontrol_new alc262_hippo1_mixer[] = { HDA_CODEC_MUTE("Front Mic Playback Switch", 0x0b, 0x01, HDA_INPUT), HDA_CODEC_VOLUME("Front Mic Boost", 0x19, 0, HDA_INPUT), /* HDA_CODEC_VOLUME("PC Beep Playback Volume", 0x0b, 0x05, HDA_INPUT), - HDA_CODEC_MUTE("PC Beelp Playback Switch", 0x0b, 0x05, HDA_INPUT), */ + HDA_CODEC_MUTE("PC Beep Playback Switch", 0x0b, 0x05, HDA_INPUT), */ /*HDA_CODEC_VOLUME("Headphone Playback Volume", 0x0D, 0x0, HDA_OUTPUT),*/ HDA_CODEC_MUTE("Headphone Playback Switch", 0x1b, 0x0, HDA_OUTPUT), { } /* end */ @@ -13009,8 +13009,8 @@ static struct snd_kcontrol_new alc662_eeepc_p701_mixer[] = { }; static struct snd_kcontrol_new alc662_eeepc_ep20_mixer[] = { - HDA_CODEC_VOLUME("LineOut Playback Volume", 0x02, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("LineOut Playback Switch", 0x14, 0x0, HDA_OUTPUT), + HDA_CODEC_VOLUME("Line-Out Playback Volume", 0x02, 0x0, HDA_OUTPUT), + HDA_CODEC_MUTE("Line-Out Playback Switch", 0x14, 0x0, HDA_OUTPUT), HDA_CODEC_VOLUME("Surround Playback Volume", 0x03, 0x0, HDA_OUTPUT), HDA_BIND_MUTE("Surround Playback Switch", 0x03, 2, HDA_INPUT), HDA_CODEC_VOLUME_MONO("Center Playback Volume", 0x04, 1, 0x0, HDA_OUTPUT), -- GitLab From 338c7ed070bb1e068c3ae8ef14dc577e75d8aecc Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Thu, 28 Feb 2008 12:34:48 +0100 Subject: [PATCH 214/923] [ALSA] ASoC: Fix DAPM widget function types in pxa machine drivers Add kcontrol argument to functions since the API was changed by the commit 9af6d9562414568ecadf96aaef5b88e7e8b19821. Signed-off-by: Jarkko Nikula Signed-off-by: Takashi Iwai --- sound/soc/pxa/corgi.c | 6 ++++-- sound/soc/pxa/poodle.c | 3 ++- sound/soc/pxa/spitz.c | 3 ++- sound/soc/pxa/tosa.c | 3 ++- 4 files changed, 10 insertions(+), 5 deletions(-) diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c index 3f34e531beb..1a70a6ac98c 100644 --- a/sound/soc/pxa/corgi.c +++ b/sound/soc/pxa/corgi.c @@ -215,7 +215,8 @@ static int corgi_set_spk(struct snd_kcontrol *kcontrol, return 1; } -static int corgi_amp_event(struct snd_soc_dapm_widget *w, int event) +static int corgi_amp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) { if (SND_SOC_DAPM_EVENT_ON(event)) set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON); @@ -225,7 +226,8 @@ static int corgi_amp_event(struct snd_soc_dapm_widget *w, int event) return 0; } -static int corgi_mic_event(struct snd_soc_dapm_widget *w, int event) +static int corgi_mic_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) { if (SND_SOC_DAPM_EVENT_ON(event)) set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS); diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c index 5ae59bd309a..4fbf8bba962 100644 --- a/sound/soc/pxa/poodle.c +++ b/sound/soc/pxa/poodle.c @@ -196,7 +196,8 @@ static int poodle_set_spk(struct snd_kcontrol *kcontrol, return 1; } -static int poodle_amp_event(struct snd_soc_dapm_widget *w, int event) +static int poodle_amp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) { if (SND_SOC_DAPM_EVENT_ON(event)) locomo_gpio_write(&poodle_locomo_device.dev, diff --git a/sound/soc/pxa/spitz.c b/sound/soc/pxa/spitz.c index d56709e1543..ecca39033fc 100644 --- a/sound/soc/pxa/spitz.c +++ b/sound/soc/pxa/spitz.c @@ -215,7 +215,8 @@ static int spitz_set_spk(struct snd_kcontrol *kcontrol, return 1; } -static int spitz_mic_bias(struct snd_soc_dapm_widget *w, int event) +static int spitz_mic_bias(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) { if (machine_is_borzoi() || machine_is_spitz()) { if (SND_SOC_DAPM_EVENT_ON(event)) diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c index e4d40b528ca..7346d7e5d06 100644 --- a/sound/soc/pxa/tosa.c +++ b/sound/soc/pxa/tosa.c @@ -135,7 +135,8 @@ static int tosa_set_spk(struct snd_kcontrol *kcontrol, } /* tosa dapm event handlers */ -static int tosa_hp_event(struct snd_soc_dapm_widget *w, int event) +static int tosa_hp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) { if (SND_SOC_DAPM_EVENT_ON(event)) set_tc6393_gpio(&tc6393_device.dev,TOSA_TC6393_L_MUTE); -- GitLab From 3fffe871b93f957bea443e85f6b221c50bbf9f97 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Thu, 28 Feb 2008 12:35:25 +0100 Subject: [PATCH 215/923] [ALSA] ASoC: Fix WM9712 mixer_event DAPM widget function type Add kcontrol argument to function since the API was changed by the commit 9af6d9562414568ecadf96aaef5b88e7e8b19821. Signed-off-by: Jarkko Nikula Signed-off-by: Takashi Iwai --- sound/soc/codecs/wm9712.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c index 590baea3c4c..524f7450804 100644 --- a/sound/soc/codecs/wm9712.c +++ b/sound/soc/codecs/wm9712.c @@ -176,7 +176,8 @@ static int wm9712_add_controls(struct snd_soc_codec *codec) * the codec only has a single control that is shared by both channels. * This makes it impossible to determine the audio path. */ -static int mixer_event (struct snd_soc_dapm_widget *w, int event) +static int mixer_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) { u16 l, r, beep, line, phone, mic, pcm, aux; -- GitLab From 008f3599ef97438900d62fe05d75535d114780fc Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Fri, 29 Feb 2008 11:46:32 +0100 Subject: [PATCH 216/923] [ALSA] sound: ice1712: unused structs Don't need to declare a struct when defining a structure layout. Both of these structs are unused. sound/pci/ice1712/revo.c:39:3: warning: symbol 'revo51' was not declared. Should it be static? sound/pci/ice1712/phase.c:54:3: warning: symbol 'phase28' was not declared. Should it be static? Signed-off-by: Harvey Harrison Signed-off-by: Takashi Iwai --- sound/pci/ice1712/phase.c | 2 +- sound/pci/ice1712/revo.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/pci/ice1712/phase.c b/sound/pci/ice1712/phase.c index 9ab4a9f383c..5a158b73dca 100644 --- a/sound/pci/ice1712/phase.c +++ b/sound/pci/ice1712/phase.c @@ -51,7 +51,7 @@ struct phase28_spec { unsigned short master[2]; unsigned short vol[8]; -} phase28; +}; /* WM8770 registers */ #define WM_DAC_ATTEN 0x00 /* DAC1-8 analog attenuation */ diff --git a/sound/pci/ice1712/revo.c b/sound/pci/ice1712/revo.c index ddd5fc8d4fe..301bf929acd 100644 --- a/sound/pci/ice1712/revo.c +++ b/sound/pci/ice1712/revo.c @@ -36,7 +36,7 @@ struct revo51_spec { struct snd_i2c_device *dev; struct snd_pt2258 *pt2258; -} revo51; +}; static void revo_i2s_mclk_changed(struct snd_ice1712 *ice) { -- GitLab From b4818494edddfe382de4f5d072cb527b60315a46 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Sat, 23 Feb 2008 11:34:12 +0100 Subject: [PATCH 217/923] [ALSA] hda-codec - Adapt eeepc p701 mixer for virtual master control Fix the line-out volume control of eeepc p701 to be a proper slave of the virtual master control. Signed-off-by: Herton Ronaldo Krzesinski Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 51871c68457..33282f9c01c 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -12995,8 +12995,8 @@ static struct snd_kcontrol_new alc662_lenovo_101e_mixer[] = { static struct snd_kcontrol_new alc662_eeepc_p701_mixer[] = { HDA_CODEC_MUTE("Speaker Playback Switch", 0x14, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("LineOut Playback Volume", 0x02, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("LineOut Playback Switch", 0x1b, 0x0, HDA_OUTPUT), + HDA_CODEC_VOLUME("Line-Out Playback Volume", 0x02, 0x0, HDA_OUTPUT), + HDA_CODEC_MUTE("Line-Out Playback Switch", 0x1b, 0x0, HDA_OUTPUT), HDA_CODEC_VOLUME("e-Mic Boost", 0x18, 0, HDA_INPUT), HDA_CODEC_VOLUME("e-Mic Playback Volume", 0x0b, 0x0, HDA_INPUT), -- GitLab From 0d9ac27afa469dbb20940ad7f25502785af1cbe3 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 27 Feb 2008 16:40:18 +0100 Subject: [PATCH 218/923] [ALSA] intel8x0 - Add quirk for Compaq Deskpro EN Added the ac97_quirk hp_only for Compaq Deskpro EN. Signed-off-by: Takashi Iwai --- sound/pci/intel8x0.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index c5ef12ae3c5..c52abd0bf22 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -1708,6 +1708,12 @@ static struct ac97_pcm ac97_pcm_defs[] __devinitdata = { }; static struct ac97_quirk ac97_quirks[] __devinitdata = { + { + .subvendor = 0x0e11, + .subdevice = 0x000e, + .name = "Compaq Deskpro EN", /* AD1885 */ + .type = AC97_TUNE_HP_ONLY + }, { .subvendor = 0x0e11, .subdevice = 0x008a, -- GitLab From b59931649256685f294d2d163a4f6d6286fbff05 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 26 Feb 2008 13:20:58 -0800 Subject: [PATCH 219/923] elfcore-compat fix uid/gid types I overlooked the difference between __kernel_uid_t and uid_t when defining struct compat_elf_prpsinfo. The result is a regression in 32-bit core dumps on x86_64, where the NT_PRPSINFO note has the wrong size and layout. This patch fixes it. Signed-off-by: Roland McGrath Acked-by: Ingo Molnar Signed-off-by: Linus Torvalds --- include/linux/elfcore-compat.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/elfcore-compat.h b/include/linux/elfcore-compat.h index 532d13adabc..0a90e1c3a42 100644 --- a/include/linux/elfcore-compat.h +++ b/include/linux/elfcore-compat.h @@ -45,8 +45,8 @@ struct compat_elf_prpsinfo char pr_zomb; char pr_nice; compat_ulong_t pr_flag; - compat_uid_t pr_uid; - compat_gid_t pr_gid; + __compat_uid_t pr_uid; + __compat_gid_t pr_gid; compat_pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; char pr_fname[16]; char pr_psargs[ELF_PRARGSZ]; -- GitLab From 32fa458688fa2e68bc433929b2d4941eef7efe39 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 28 Feb 2008 13:29:43 +0000 Subject: [PATCH 220/923] Fix hpet_(un)register_irq_handler() for emulation Fix hpet_(un)register_irq_handler() for when CONFIG_HPET_EMULATE_RTC=n. They are provided macros that substitute value 0, but if they are called as functions and the return value isn't checked, the following warnings appear: drivers/char/rtc.c: In function `rtc_init': drivers/char/rtc.c:1063: warning: statement with no effect drivers/char/rtc.c: In function `rtc_exit': drivers/char/rtc.c:1157: warning: statement with no effect Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- drivers/char/rtc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c index 78b151c4d20..5c3142b6f1f 100644 --- a/drivers/char/rtc.c +++ b/drivers/char/rtc.c @@ -110,8 +110,8 @@ static int rtc_has_irq = 1; #define hpet_set_rtc_irq_bit(arg) 0 #define hpet_rtc_timer_init() do { } while (0) #define hpet_rtc_dropped_irq() 0 -#define hpet_register_irq_handler(h) 0 -#define hpet_unregister_irq_handler(h) 0 +#define hpet_register_irq_handler(h) ({ 0; }) +#define hpet_unregister_irq_handler(h) ({ 0; }) #ifdef RTC_IRQ static irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id) { -- GitLab From 57ce36feb4d1281247755bc445bae77728298955 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Mon, 25 Feb 2008 16:45:03 +0100 Subject: [PATCH 221/923] let __dec_zone_page_state use __dec_zone_state MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This removes code duplication and makes __dec_zone_page_state look like __inc_zone_page_state. Signed-off-by: Uwe Kleine-König Acked-by: Christoph Lameter Signed-off-by: Linus Torvalds --- include/linux/vmstat.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 75370ec0923..9f1b4b46151 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -246,8 +246,7 @@ static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item) static inline void __dec_zone_page_state(struct page *page, enum zone_stat_item item) { - atomic_long_dec(&page_zone(page)->vm_stat[item]); - atomic_long_dec(&vm_stat[item]); + __dec_zone_state(page_zone(page), item); } /* -- GitLab From 00da714b31b944400ee789e477f58247cff30b1b Mon Sep 17 00:00:00 2001 From: Ke Wei Date: Wed, 27 Feb 2008 20:50:25 +0800 Subject: [PATCH 222/923] [SCSI] mvsas: fix phy sas address The phy sas address is showing wrongly (wrong endianness). Fix up the endian transforms to make this correct. Signed-off-by: Ke Wei Signed-off-by: James Bottomley --- drivers/scsi/mvsas.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) mode change 100644 => 100755 drivers/scsi/mvsas.c diff --git a/drivers/scsi/mvsas.c b/drivers/scsi/mvsas.c old mode 100644 new mode 100755 index d4a6ac3c9c4..5ec0665b3a3 --- a/drivers/scsi/mvsas.c +++ b/drivers/scsi/mvsas.c @@ -40,7 +40,7 @@ #include #define DRV_NAME "mvsas" -#define DRV_VERSION "0.5" +#define DRV_VERSION "0.5.1" #define _MV_DUMP 0 #define MVS_DISABLE_NVRAM #define MVS_DISABLE_MSI @@ -1005,7 +1005,7 @@ err_out: return rc; #else /* FIXME , For SAS target mode */ - memcpy(buf, "\x00\x00\xab\x11\x30\x04\x05\x50", 8); + memcpy(buf, "\x50\x05\x04\x30\x11\xab\x00\x00", 8); return 0; #endif } @@ -1330,7 +1330,7 @@ static int mvs_int_rx(struct mvs_info *mvi, bool self_clear) mvs_hba_cq_dump(mvi); - if (unlikely(rx_desc & RXQ_DONE)) + if (likely(rx_desc & RXQ_DONE)) mvs_slot_complete(mvi, rx_desc); if (rx_desc & RXQ_ATTN) { attn = true; @@ -2720,9 +2720,8 @@ static int __devinit mvs_hw_init(struct mvs_info *mvi) msleep(100); /* init and reset phys */ for (i = 0; i < mvi->chip->n_phy; i++) { - /* FIXME: is this the correct dword order? */ - u32 lo = *((u32 *)&mvi->sas_addr[0]); - u32 hi = *((u32 *)&mvi->sas_addr[4]); + u32 lo = be32_to_cpu(*(u32 *)&mvi->sas_addr[4]); + u32 hi = be32_to_cpu(*(u32 *)&mvi->sas_addr[0]); mvs_detect_porttype(mvi, i); -- GitLab From 2232c2d8e0a6a31061dec311f3d1cf7624bc14f1 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 29 Feb 2008 18:46:50 +0100 Subject: [PATCH 223/923] rcu: add support for dynamic ticks and preempt rcu The PREEMPT-RCU can get stuck if a CPU goes idle and NO_HZ is set. The idle CPU will not progress the RCU through its grace period and a synchronize_rcu my get stuck. Without this patch I have a box that will not boot when PREEMPT_RCU and NO_HZ are set. That same box boots fine with this patch. This patch comes from the -rt kernel where it has been tested for several months. Signed-off-by: Steven Rostedt Signed-off-by: Paul E. McKenney Signed-off-by: Ingo Molnar --- include/linux/hardirq.h | 10 ++ include/linux/rcuclassic.h | 3 + include/linux/rcupreempt.h | 22 ++++ kernel/rcupreempt.c | 224 ++++++++++++++++++++++++++++++++++++- kernel/softirq.c | 1 + kernel/time/tick-sched.c | 3 + 6 files changed, 259 insertions(+), 4 deletions(-) diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index 2961ec78804..49829988bfa 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -109,6 +109,14 @@ static inline void account_system_vtime(struct task_struct *tsk) } #endif +#if defined(CONFIG_PREEMPT_RCU) && defined(CONFIG_NO_HZ) +extern void rcu_irq_enter(void); +extern void rcu_irq_exit(void); +#else +# define rcu_irq_enter() do { } while (0) +# define rcu_irq_exit() do { } while (0) +#endif /* CONFIG_PREEMPT_RCU */ + /* * It is safe to do non-atomic ops on ->hardirq_context, * because NMI handlers may not preempt and the ops are @@ -117,6 +125,7 @@ static inline void account_system_vtime(struct task_struct *tsk) */ #define __irq_enter() \ do { \ + rcu_irq_enter(); \ account_system_vtime(current); \ add_preempt_count(HARDIRQ_OFFSET); \ trace_hardirq_enter(); \ @@ -135,6 +144,7 @@ extern void irq_enter(void); trace_hardirq_exit(); \ account_system_vtime(current); \ sub_preempt_count(HARDIRQ_OFFSET); \ + rcu_irq_exit(); \ } while (0) /* diff --git a/include/linux/rcuclassic.h b/include/linux/rcuclassic.h index 4d6624260b4..b3dccd68629 100644 --- a/include/linux/rcuclassic.h +++ b/include/linux/rcuclassic.h @@ -160,5 +160,8 @@ extern void rcu_restart_cpu(int cpu); extern long rcu_batches_completed(void); extern long rcu_batches_completed_bh(void); +#define rcu_enter_nohz() do { } while (0) +#define rcu_exit_nohz() do { } while (0) + #endif /* __KERNEL__ */ #endif /* __LINUX_RCUCLASSIC_H */ diff --git a/include/linux/rcupreempt.h b/include/linux/rcupreempt.h index 60c2a033b19..01152ed532c 100644 --- a/include/linux/rcupreempt.h +++ b/include/linux/rcupreempt.h @@ -82,5 +82,27 @@ extern struct rcupreempt_trace *rcupreempt_trace_cpu(int cpu); struct softirq_action; +#ifdef CONFIG_NO_HZ +DECLARE_PER_CPU(long, dynticks_progress_counter); + +static inline void rcu_enter_nohz(void) +{ + __get_cpu_var(dynticks_progress_counter)++; + WARN_ON(__get_cpu_var(dynticks_progress_counter) & 0x1); + mb(); +} + +static inline void rcu_exit_nohz(void) +{ + mb(); + __get_cpu_var(dynticks_progress_counter)++; + WARN_ON(!(__get_cpu_var(dynticks_progress_counter) & 0x1)); +} + +#else /* CONFIG_NO_HZ */ +#define rcu_enter_nohz() do { } while (0) +#define rcu_exit_nohz() do { } while (0) +#endif /* CONFIG_NO_HZ */ + #endif /* __KERNEL__ */ #endif /* __LINUX_RCUPREEMPT_H */ diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c index 987cfb7ade8..c7c52096df4 100644 --- a/kernel/rcupreempt.c +++ b/kernel/rcupreempt.c @@ -23,6 +23,10 @@ * to Suparna Bhattacharya for pushing me completely away * from atomic instructions on the read side. * + * - Added handling of Dynamic Ticks + * Copyright 2007 - Paul E. Mckenney + * - Steven Rostedt + * * Papers: http://www.rdrop.com/users/paulmck/RCU * * Design Document: http://lwn.net/Articles/253651/ @@ -409,6 +413,212 @@ static void __rcu_advance_callbacks(struct rcu_data *rdp) } } +#ifdef CONFIG_NO_HZ + +DEFINE_PER_CPU(long, dynticks_progress_counter) = 1; +static DEFINE_PER_CPU(long, rcu_dyntick_snapshot); +static DEFINE_PER_CPU(int, rcu_update_flag); + +/** + * rcu_irq_enter - Called from Hard irq handlers and NMI/SMI. + * + * If the CPU was idle with dynamic ticks active, this updates the + * dynticks_progress_counter to let the RCU handling know that the + * CPU is active. + */ +void rcu_irq_enter(void) +{ + int cpu = smp_processor_id(); + + if (per_cpu(rcu_update_flag, cpu)) + per_cpu(rcu_update_flag, cpu)++; + + /* + * Only update if we are coming from a stopped ticks mode + * (dynticks_progress_counter is even). + */ + if (!in_interrupt() && + (per_cpu(dynticks_progress_counter, cpu) & 0x1) == 0) { + /* + * The following might seem like we could have a race + * with NMI/SMIs. But this really isn't a problem. + * Here we do a read/modify/write, and the race happens + * when an NMI/SMI comes in after the read and before + * the write. But NMI/SMIs will increment this counter + * twice before returning, so the zero bit will not + * be corrupted by the NMI/SMI which is the most important + * part. + * + * The only thing is that we would bring back the counter + * to a postion that it was in during the NMI/SMI. + * But the zero bit would be set, so the rest of the + * counter would again be ignored. + * + * On return from the IRQ, the counter may have the zero + * bit be 0 and the counter the same as the return from + * the NMI/SMI. If the state machine was so unlucky to + * see that, it still doesn't matter, since all + * RCU read-side critical sections on this CPU would + * have already completed. + */ + per_cpu(dynticks_progress_counter, cpu)++; + /* + * The following memory barrier ensures that any + * rcu_read_lock() primitives in the irq handler + * are seen by other CPUs to follow the above + * increment to dynticks_progress_counter. This is + * required in order for other CPUs to correctly + * determine when it is safe to advance the RCU + * grace-period state machine. + */ + smp_mb(); /* see above block comment. */ + /* + * Since we can't determine the dynamic tick mode from + * the dynticks_progress_counter after this routine, + * we use a second flag to acknowledge that we came + * from an idle state with ticks stopped. + */ + per_cpu(rcu_update_flag, cpu)++; + /* + * If we take an NMI/SMI now, they will also increment + * the rcu_update_flag, and will not update the + * dynticks_progress_counter on exit. That is for + * this IRQ to do. + */ + } +} + +/** + * rcu_irq_exit - Called from exiting Hard irq context. + * + * If the CPU was idle with dynamic ticks active, update the + * dynticks_progress_counter to put let the RCU handling be + * aware that the CPU is going back to idle with no ticks. + */ +void rcu_irq_exit(void) +{ + int cpu = smp_processor_id(); + + /* + * rcu_update_flag is set if we interrupted the CPU + * when it was idle with ticks stopped. + * Once this occurs, we keep track of interrupt nesting + * because a NMI/SMI could also come in, and we still + * only want the IRQ that started the increment of the + * dynticks_progress_counter to be the one that modifies + * it on exit. + */ + if (per_cpu(rcu_update_flag, cpu)) { + if (--per_cpu(rcu_update_flag, cpu)) + return; + + /* This must match the interrupt nesting */ + WARN_ON(in_interrupt()); + + /* + * If an NMI/SMI happens now we are still + * protected by the dynticks_progress_counter being odd. + */ + + /* + * The following memory barrier ensures that any + * rcu_read_unlock() primitives in the irq handler + * are seen by other CPUs to preceed the following + * increment to dynticks_progress_counter. This + * is required in order for other CPUs to determine + * when it is safe to advance the RCU grace-period + * state machine. + */ + smp_mb(); /* see above block comment. */ + per_cpu(dynticks_progress_counter, cpu)++; + WARN_ON(per_cpu(dynticks_progress_counter, cpu) & 0x1); + } +} + +static void dyntick_save_progress_counter(int cpu) +{ + per_cpu(rcu_dyntick_snapshot, cpu) = + per_cpu(dynticks_progress_counter, cpu); +} + +static inline int +rcu_try_flip_waitack_needed(int cpu) +{ + long curr; + long snap; + + curr = per_cpu(dynticks_progress_counter, cpu); + snap = per_cpu(rcu_dyntick_snapshot, cpu); + smp_mb(); /* force ordering with cpu entering/leaving dynticks. */ + + /* + * If the CPU remained in dynticks mode for the entire time + * and didn't take any interrupts, NMIs, SMIs, or whatever, + * then it cannot be in the middle of an rcu_read_lock(), so + * the next rcu_read_lock() it executes must use the new value + * of the counter. So we can safely pretend that this CPU + * already acknowledged the counter. + */ + + if ((curr == snap) && ((curr & 0x1) == 0)) + return 0; + + /* + * If the CPU passed through or entered a dynticks idle phase with + * no active irq handlers, then, as above, we can safely pretend + * that this CPU already acknowledged the counter. + */ + + if ((curr - snap) > 2 || (snap & 0x1) == 0) + return 0; + + /* We need this CPU to explicitly acknowledge the counter flip. */ + + return 1; +} + +static inline int +rcu_try_flip_waitmb_needed(int cpu) +{ + long curr; + long snap; + + curr = per_cpu(dynticks_progress_counter, cpu); + snap = per_cpu(rcu_dyntick_snapshot, cpu); + smp_mb(); /* force ordering with cpu entering/leaving dynticks. */ + + /* + * If the CPU remained in dynticks mode for the entire time + * and didn't take any interrupts, NMIs, SMIs, or whatever, + * then it cannot have executed an RCU read-side critical section + * during that time, so there is no need for it to execute a + * memory barrier. + */ + + if ((curr == snap) && ((curr & 0x1) == 0)) + return 0; + + /* + * If the CPU either entered or exited an outermost interrupt, + * SMI, NMI, or whatever handler, then we know that it executed + * a memory barrier when doing so. So we don't need another one. + */ + if (curr != snap) + return 0; + + /* We need the CPU to execute a memory barrier. */ + + return 1; +} + +#else /* !CONFIG_NO_HZ */ + +# define dyntick_save_progress_counter(cpu) do { } while (0) +# define rcu_try_flip_waitack_needed(cpu) (1) +# define rcu_try_flip_waitmb_needed(cpu) (1) + +#endif /* CONFIG_NO_HZ */ + /* * Get here when RCU is idle. Decide whether we need to * move out of idle state, and return non-zero if so. @@ -447,8 +657,10 @@ rcu_try_flip_idle(void) /* Now ask each CPU for acknowledgement of the flip. */ - for_each_cpu_mask(cpu, rcu_cpu_online_map) + for_each_cpu_mask(cpu, rcu_cpu_online_map) { per_cpu(rcu_flip_flag, cpu) = rcu_flipped; + dyntick_save_progress_counter(cpu); + } return 1; } @@ -464,7 +676,8 @@ rcu_try_flip_waitack(void) RCU_TRACE_ME(rcupreempt_trace_try_flip_a1); for_each_cpu_mask(cpu, rcu_cpu_online_map) - if (per_cpu(rcu_flip_flag, cpu) != rcu_flip_seen) { + if (rcu_try_flip_waitack_needed(cpu) && + per_cpu(rcu_flip_flag, cpu) != rcu_flip_seen) { RCU_TRACE_ME(rcupreempt_trace_try_flip_ae1); return 0; } @@ -509,8 +722,10 @@ rcu_try_flip_waitzero(void) smp_mb(); /* ^^^^^^^^^^^^ */ /* Call for a memory barrier from each CPU. */ - for_each_cpu_mask(cpu, rcu_cpu_online_map) + for_each_cpu_mask(cpu, rcu_cpu_online_map) { per_cpu(rcu_mb_flag, cpu) = rcu_mb_needed; + dyntick_save_progress_counter(cpu); + } RCU_TRACE_ME(rcupreempt_trace_try_flip_z2); return 1; @@ -528,7 +743,8 @@ rcu_try_flip_waitmb(void) RCU_TRACE_ME(rcupreempt_trace_try_flip_m1); for_each_cpu_mask(cpu, rcu_cpu_online_map) - if (per_cpu(rcu_mb_flag, cpu) != rcu_mb_done) { + if (rcu_try_flip_waitmb_needed(cpu) && + per_cpu(rcu_mb_flag, cpu) != rcu_mb_done) { RCU_TRACE_ME(rcupreempt_trace_try_flip_me1); return 0; } diff --git a/kernel/softirq.c b/kernel/softirq.c index 5b3aea5f471..31e9f2a4792 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -313,6 +313,7 @@ void irq_exit(void) /* Make sure that timer wheel updates are propagated */ if (!in_interrupt() && idle_cpu(smp_processor_id()) && !need_resched()) tick_nohz_stop_sched_tick(); + rcu_irq_exit(); #endif preempt_enable_no_resched(); } diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index fa9bb73dbdb..2968298f8f3 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -282,6 +282,7 @@ void tick_nohz_stop_sched_tick(void) ts->idle_tick = ts->sched_timer.expires; ts->tick_stopped = 1; ts->idle_jiffies = last_jiffies; + rcu_enter_nohz(); } /* @@ -375,6 +376,8 @@ void tick_nohz_restart_sched_tick(void) return; } + rcu_exit_nohz(); + /* Update jiffies first */ select_nohz_load_balancer(0); now = ktime_get(); -- GitLab From 7be2a03e3174cee3a3cdcdf17db357470f51caff Mon Sep 17 00:00:00 2001 From: Dmitry Adamushko Date: Fri, 8 Feb 2008 15:41:13 +0100 Subject: [PATCH 224/923] softlockup: fix task state setting kthread_stop() can be called when a 'watchdog' thread is executing after kthread_should_stop() but before set_task_state(TASK_INTERRUPTIBLE). Signed-off-by: Dmitry Adamushko Signed-off-by: Ingo Molnar --- kernel/softlockup.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/kernel/softlockup.c b/kernel/softlockup.c index 7c2da88db4e..01b6522fd92 100644 --- a/kernel/softlockup.c +++ b/kernel/softlockup.c @@ -216,26 +216,27 @@ static int watchdog(void *__bind_cpu) /* initialize timestamp */ touch_softlockup_watchdog(); + set_current_state(TASK_INTERRUPTIBLE); /* * Run briefly once per second to reset the softlockup timestamp. * If this gets delayed for more than 60 seconds then the * debug-printout triggers in softlockup_tick(). */ while (!kthread_should_stop()) { - set_current_state(TASK_INTERRUPTIBLE); touch_softlockup_watchdog(); schedule(); if (kthread_should_stop()) break; - if (this_cpu != check_cpu) - continue; - - if (sysctl_hung_task_timeout_secs) - check_hung_uninterruptible_tasks(this_cpu); + if (this_cpu == check_cpu) { + if (sysctl_hung_task_timeout_secs) + check_hung_uninterruptible_tasks(this_cpu); + } + set_current_state(TASK_INTERRUPTIBLE); } + __set_current_state(TASK_RUNNING); return 0; } -- GitLab From 3d00daf44654dc75629caf42816ac4e293658724 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 26 Feb 2008 13:00:18 -0800 Subject: [PATCH 225/923] x86: tls prevent_tail_call Fix a kernel bug (vmware boot problem) reported by Tomasz Grobelny, which occurs with certain .config variants and gccs. The x86 TLS cleanup in commit efd1ca52d04d2f6df337a3332cee56cd60e6d4c4 made the sys_set_thread_area and sys_get_thread_area functions ripe for tail call optimization. If the compiler chooses to use it for them, it can clobber the user trap frame because these are asmlinkage functions. Reported-by: Tomasz Grobelny Signed-off-by: Roland McGrath Signed-off-by: Ingo Molnar --- arch/x86/kernel/tls.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c index 6dfd4e76661..022bcaa3b42 100644 --- a/arch/x86/kernel/tls.c +++ b/arch/x86/kernel/tls.c @@ -91,7 +91,9 @@ int do_set_thread_area(struct task_struct *p, int idx, asmlinkage int sys_set_thread_area(struct user_desc __user *u_info) { - return do_set_thread_area(current, -1, u_info, 1); + int ret = do_set_thread_area(current, -1, u_info, 1); + prevent_tail_call(ret); + return ret; } @@ -139,7 +141,9 @@ int do_get_thread_area(struct task_struct *p, int idx, asmlinkage int sys_get_thread_area(struct user_desc __user *u_info) { - return do_get_thread_area(current, -1, u_info); + int ret = do_get_thread_area(current, -1, u_info); + prevent_tail_call(ret); + return ret; } int regset_tls_active(struct task_struct *target, -- GitLab From cded932b75ab0a5f9181ee3da34a0a488d1a14fd Mon Sep 17 00:00:00 2001 From: Hans Rosenfeld Date: Mon, 18 Feb 2008 18:10:47 +0100 Subject: [PATCH 226/923] x86: fix pmd_bad and pud_bad to support huge pages I recently stumbled upon a problem in the support for huge pages. If a program using huge pages does not explicitly unmap them, they remain mapped (and therefore, are lost) after the program exits. I observed that the free huge page count in /proc/meminfo decreased when running my program, and it did not increase after the program exited. After running the program a few times, no more huge pages could be allocated. The reason for this seems to be that the x86 pmd_bad and pud_bad consider pmd/pud entries having the PSE bit set invalid. I think there is nothing wrong with this bit being set, it just indicates that the lowest level of translation has been reached. This bit has to be (and is) checked after the basic validity of the entry has been checked, like in this fragment from follow_page() in mm/memory.c: if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd))) goto no_page_table; if (pmd_huge(*pmd)) { BUG_ON(flags & FOLL_GET); page = follow_huge_pmd(mm, address, pmd, flags & FOLL_WRITE); goto out; } Note that this code currently doesn't work as intended if the pmd refers to a huge page, the pmd_huge() check can not be reached if the page is huge. Extending pmd_bad() (and, for future 1GB page support, pud_bad()) to allow for the PSE bit being set fixes this. For similar reasons, allowing the NX bit being set is necessary, too. I have seen huge pages having the NX bit set in their pmd entry, which would cause the same problem. Signed-Off-By: Hans Rosenfeld Signed-off-by: Ingo Molnar --- include/asm-x86/pgtable_32.h | 4 +++- include/asm-x86/pgtable_64.h | 6 ++++-- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index a842c7222b1..b478efa971e 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -91,7 +91,9 @@ extern unsigned long pg0[]; /* To avoid harmful races, pmd_none(x) should check only the lower when PAE */ #define pmd_none(x) (!(unsigned long)pmd_val(x)) #define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) -#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) +#define pmd_bad(x) ((pmd_val(x) \ + & ~(PAGE_MASK | _PAGE_USER | _PAGE_PSE | _PAGE_NX)) \ + != _KERNPG_TABLE) #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h index 0a0b77bc736..0a9258333cb 100644 --- a/include/asm-x86/pgtable_64.h +++ b/include/asm-x86/pgtable_64.h @@ -153,12 +153,14 @@ static inline unsigned long pgd_bad(pgd_t pgd) static inline unsigned long pud_bad(pud_t pud) { - return pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER); + return pud_val(pud) & + ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER | _PAGE_PSE | _PAGE_NX); } static inline unsigned long pmd_bad(pmd_t pmd) { - return pmd_val(pmd) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER); + return pmd_val(pmd) & + ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER | _PAGE_PSE | _PAGE_NX); } #define pte_none(x) (!pte_val(x)) -- GitLab From d67bbacb4b557ece3b41abdcb616354ac0ce00e1 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 27 Feb 2008 09:39:52 +0100 Subject: [PATCH 227/923] x86: restore vsyscall64 prochandler a recent fix: commit ce28b9864b853803320c3f1d8de1b81aa4120b14 Author: Thomas Gleixner Date: Wed Feb 20 23:57:30 2008 +0100 x86: fix vsyscall wreckage removed the broken /kernel/vsyscall64 handler completely. This triggers the following debug check: sysctl table check failed: /kernel/vsyscall64 No proc_handler Restore the sane part of the proc handler. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86/kernel/vsyscall_64.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c index b6be812fac0..edff4c98548 100644 --- a/arch/x86/kernel/vsyscall_64.c +++ b/arch/x86/kernel/vsyscall_64.c @@ -222,10 +222,19 @@ long __vsyscall(3) venosys_1(void) } #ifdef CONFIG_SYSCTL + +static int +vsyscall_sysctl_change(ctl_table *ctl, int write, struct file * filp, + void __user *buffer, size_t *lenp, loff_t *ppos) +{ + return proc_dointvec(ctl, write, filp, buffer, lenp, ppos); +} + static ctl_table kernel_table2[] = { { .procname = "vsyscall64", .data = &vsyscall_gtod_data.sysctl_enabled, .maxlen = sizeof(int), - .mode = 0644 }, + .mode = 0644, + .proc_handler = vsyscall_sysctl_change }, {} }; -- GitLab From f2dbe03dccc95f41429d60e4221b02fc0f112cc4 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 27 Feb 2008 11:42:15 -0800 Subject: [PATCH 228/923] x86 vdso: fix build locale dependency Priit Laes discovered that the sed command processing nm output was sensitive to locale settings. This was addressed in commit 03994f01e8b72b3d01fd3d09d1cc7c9f421a727c by using [:alnum:] in place of [a-zA-Z0-9]. But that solution too is locale-dependent and may not always match the identifiers it needs to. The better fix is just to run sed et al with a fixed locale setting in all builds. Signed-off-by: Roland McGrath CC: Priit Laes Signed-off-by: Ingo Molnar --- arch/x86/vdso/Makefile | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile index b8bd0c4aa02..0a8f4742ef5 100644 --- a/arch/x86/vdso/Makefile +++ b/arch/x86/vdso/Makefile @@ -48,9 +48,11 @@ obj-$(VDSO64-y) += vdso-syms.lds # Match symbols in the DSO that look like VDSO*; produce a file of constants. # sed-vdsosym := -e 's/^00*/0/' \ - -e 's/^\([[:xdigit:]]*\) . \(VDSO[[:alnum:]_]*\)$$/\2 = 0x\1;/p' + -e 's/^\([0-9a-fA-F]*\) . \(VDSO[a-zA-Z0-9_]*\)$$/\2 = 0x\1;/p' quiet_cmd_vdsosym = VDSOSYM $@ - cmd_vdsosym = $(NM) $< | sed -n $(sed-vdsosym) | LC_ALL=C sort > $@ +define cmd_vdsosym + $(NM) $< | LC_ALL=C sed -n $(sed-vdsosym) | LC_ALL=C sort > $@ +endef $(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE $(call if_changed,vdsosym) -- GitLab From b16bf712f491808a8c926dd481c696fe7d73ee5a Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 28 Feb 2008 14:02:08 +0100 Subject: [PATCH 229/923] x86: fix leak un ioremap_page_range() failure Jan Beulich noticed it during code review that if a driver's ioremap() fails (say due to -ENOMEM) then we might leak the struct vm_area. Free it properly. Signed-off-by: Ingo Molnar --- arch/x86/mm/ioremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 882328efc3d..ac3c959e271 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -162,7 +162,7 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size, area->phys_addr = phys_addr; vaddr = (unsigned long) area->addr; if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot)) { - remove_vm_area((void *)(vaddr & PAGE_MASK)); + free_vm_area(area); return NULL; } -- GitLab From 757265b8c57bb8fd91785d3d1a87fb483c86c9c2 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 28 Feb 2008 20:19:06 +0100 Subject: [PATCH 230/923] x86: delay the export removal of init_mm delay the removal of this symbol export by one more kernel release, giving external modules such as VirtualBox a chance to stop using it. Signed-off-by: Ingo Molnar --- Documentation/feature-removal-schedule.txt | 12 ++++++++++++ arch/x86/kernel/init_task.c | 1 + 2 files changed, 13 insertions(+) diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index ba899ff2a8f..c1d1fd0c299 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -316,3 +316,15 @@ Why: Largely unmaintained and almost entirely unused. File system is largely pointless as without a lot of work only the most trivial of Solaris binaries can work with the emulation code. Who: David S. Miller + +--------------------------- + +What: init_mm export +When: 2.6.26 +Why: Not used in-tree. The current out-of-tree users used it to + work around problems in the CPA code which should be resolved + by now. One usecase was described to provide verification code + of the CPA operation. That's a good idea in general, but such + code / infrastructure should be in the kernel and not in some + out-of-tree driver. +Who: Thomas Gleixner diff --git a/arch/x86/kernel/init_task.c b/arch/x86/kernel/init_task.c index 5b3ce793436..3d01e47777d 100644 --- a/arch/x86/kernel/init_task.c +++ b/arch/x86/kernel/init_task.c @@ -15,6 +15,7 @@ static struct files_struct init_files = INIT_FILES; static struct signal_struct init_signals = INIT_SIGNALS(init_signals); static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); struct mm_struct init_mm = INIT_MM(init_mm); +EXPORT_UNUSED_SYMBOL(init_mm); /* will be removed in 2.6.26 */ /* * Initial thread structure. -- GitLab From 8be8f54bae3453588011cad06363813a5293af53 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 23 Feb 2008 20:43:21 +0100 Subject: [PATCH 231/923] x86: CPA: avoid split of alias mappings avoid over-eager large page splitup. When the target area needs to be split or is split already (ioremap) then the current code enforces the split of large mappings in the alias regions even if we could avoid it. Use a separate variable processed in the cpa_data structure to carry the number of pages which have been processed instead of reusing the numpages variable. This keeps numpages intact and gives the alias code a chance to keep large mappings intact. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86/mm/pageattr.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 14e48b5a94b..7049294fb46 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -26,6 +26,7 @@ struct cpa_data { pgprot_t mask_set; pgprot_t mask_clr; int numpages; + int processed; int flushtlb; unsigned long pfn; }; @@ -290,8 +291,8 @@ try_preserve_large_page(pte_t *kpte, unsigned long address, */ nextpage_addr = (address + psize) & pmask; numpages = (nextpage_addr - address) >> PAGE_SHIFT; - if (numpages < cpa->numpages) - cpa->numpages = numpages; + if (numpages < cpa->processed) + cpa->processed = numpages; /* * We are safe now. Check whether the new pgprot is the same: @@ -318,7 +319,7 @@ try_preserve_large_page(pte_t *kpte, unsigned long address, */ addr = address + PAGE_SIZE; pfn++; - for (i = 1; i < cpa->numpages; i++, addr += PAGE_SIZE, pfn++) { + for (i = 1; i < cpa->processed; i++, addr += PAGE_SIZE, pfn++) { pgprot_t chk_prot = static_protections(new_prot, addr, pfn); if (pgprot_val(chk_prot) != pgprot_val(new_prot)) @@ -342,7 +343,7 @@ try_preserve_large_page(pte_t *kpte, unsigned long address, * that we limited the number of possible pages already to * the number of pages in the large page. */ - if (address == (nextpage_addr - psize) && cpa->numpages == numpages) { + if (address == (nextpage_addr - psize) && cpa->processed == numpages) { /* * The address is aligned and the number of pages * covers the full page. @@ -572,7 +573,7 @@ repeat: set_pte_atomic(kpte, new_pte); cpa->flushtlb = 1; } - cpa->numpages = 1; + cpa->processed = 1; return 0; } @@ -583,7 +584,7 @@ repeat: do_split = try_preserve_large_page(kpte, address, cpa); /* * When the range fits into the existing large page, - * return. cp->numpages and cpa->tlbflush have been updated in + * return. cp->processed and cpa->tlbflush have been updated in * try_large_page: */ if (do_split <= 0) @@ -662,7 +663,7 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias) * Store the remaining nr of pages for the large page * preservation check. */ - cpa->numpages = numpages; + cpa->numpages = cpa->processed = numpages; ret = __change_page_attr(cpa, checkalias); if (ret) @@ -679,9 +680,9 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias) * CPA operation. Either a large page has been * preserved or a single page update happened. */ - BUG_ON(cpa->numpages > numpages); - numpages -= cpa->numpages; - cpa->vaddr += cpa->numpages * PAGE_SIZE; + BUG_ON(cpa->processed > numpages); + numpages -= cpa->processed; + cpa->vaddr += cpa->processed * PAGE_SIZE; } return 0; } -- GitLab From b4ef95de00be4c2c30feccf607a45093c8c118b7 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 26 Feb 2008 09:40:27 +0100 Subject: [PATCH 232/923] x86: disable BTS ptrace extensions for now revert the BTS ptrace extension for now. based on general objections from Roland McGrath: http://lkml.org/lkml/2008/2/21/323 we'll let the BTS functionality cook some more and re-enable it in v2.6.26. We'll leave the dead code around to help the development of this code. (X86_BTS is not defined at the moment) Signed-off-by: Ingo Molnar --- arch/x86/kernel/process_32.c | 2 ++ arch/x86/kernel/process_64.c | 2 ++ arch/x86/kernel/ptrace.c | 12 ++++++++++++ 3 files changed, 16 insertions(+) diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index a7d50a547dc..be3c7a299f0 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -603,11 +603,13 @@ __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p, } #endif +#ifdef X86_BTS if (test_tsk_thread_flag(prev_p, TIF_BTS_TRACE_TS)) ptrace_bts_take_timestamp(prev_p, BTS_TASK_DEPARTS); if (test_tsk_thread_flag(next_p, TIF_BTS_TRACE_TS)) ptrace_bts_take_timestamp(next_p, BTS_TASK_ARRIVES); +#endif if (!test_tsk_thread_flag(next_p, TIF_IO_BITMAP)) { diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 43f287744f9..3baf9b9f4c8 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -604,11 +604,13 @@ static inline void __switch_to_xtra(struct task_struct *prev_p, memset(tss->io_bitmap, 0xff, prev->io_bitmap_max); } +#ifdef X86_BTS if (test_tsk_thread_flag(prev_p, TIF_BTS_TRACE_TS)) ptrace_bts_take_timestamp(prev_p, BTS_TASK_DEPARTS); if (test_tsk_thread_flag(next_p, TIF_BTS_TRACE_TS)) ptrace_bts_take_timestamp(next_p, BTS_TASK_ARRIVES); +#endif } /* diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index d862e396b09..f41fdc98efb 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -544,6 +544,8 @@ static int ptrace_set_debugreg(struct task_struct *child, return 0; } +#ifdef X86_BTS + static int ptrace_bts_get_size(struct task_struct *child) { if (!child->thread.ds_area_msr) @@ -826,6 +828,7 @@ void ptrace_bts_take_timestamp(struct task_struct *tsk, ptrace_bts_write_record(tsk, &rec); } +#endif /* X86_BTS */ /* * Called by kernel/ptrace.c when detaching.. @@ -839,7 +842,9 @@ void ptrace_disable(struct task_struct *child) clear_tsk_thread_flag(child, TIF_SYSCALL_EMU); #endif if (child->thread.ds_area_msr) { +#ifdef X86_BTS ptrace_bts_realloc(child, 0, 0); +#endif child->thread.debugctlmsr &= ~ds_debugctl_mask(); if (!child->thread.debugctlmsr) clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR); @@ -961,6 +966,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) break; #endif + /* + * These bits need more cooking - not enabled yet: + */ +#ifdef X86_BTS case PTRACE_BTS_CONFIG: ret = ptrace_bts_config (child, data, (struct ptrace_bts_config __user *)addr); @@ -988,6 +997,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ret = ptrace_bts_drain (child, data, (struct bts_struct __user *) addr); break; +#endif default: ret = ptrace_request(child, request, addr, data); @@ -1226,12 +1236,14 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data) case PTRACE_SETOPTIONS: case PTRACE_SET_THREAD_AREA: case PTRACE_GET_THREAD_AREA: +#ifdef X86_BTS case PTRACE_BTS_CONFIG: case PTRACE_BTS_STATUS: case PTRACE_BTS_SIZE: case PTRACE_BTS_GET: case PTRACE_BTS_CLEAR: case PTRACE_BTS_DRAIN: +#endif return sys_ptrace(request, pid, addr, data); default: -- GitLab From 53c58588107973c0e240a1ed4fb8295f274c409d Mon Sep 17 00:00:00 2001 From: Dave Anderson Date: Thu, 21 Feb 2008 11:45:38 -0500 Subject: [PATCH 233/923] x86 ptrace: fix ptrace_bts_config structure declaration The 2.6.25 ptrace_bts_config structure in asm-x86/ptrace-abi.h is defined with u32 types: #include /* configuration/status structure used in PTRACE_BTS_CONFIG and PTRACE_BTS_STATUS commands. */ struct ptrace_bts_config { /* requested or actual size of BTS buffer in bytes */ u32 size; /* bitmask of below flags */ u32 flags; /* buffer overflow signal */ u32 signal; /* actual size of bts_struct in bytes */ u32 bts_size; }; #endif But u32 is only accessible in asm-x86/types.h if __KERNEL__, leading to compile errors when ptrace.h is included from user-space. The double-underscore versions that are exported to user-space in asm-x86/types.h should be used instead. Signed-off-by: Dave Anderson Signed-off-by: Ingo Molnar --- include/asm-x86/ptrace-abi.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h index 81a8ee4c55f..f224eb3c315 100644 --- a/include/asm-x86/ptrace-abi.h +++ b/include/asm-x86/ptrace-abi.h @@ -89,13 +89,13 @@ */ struct ptrace_bts_config { /* requested or actual size of BTS buffer in bytes */ - u32 size; + __u32 size; /* bitmask of below flags */ - u32 flags; + __u32 flags; /* buffer overflow signal */ - u32 signal; + __u32 signal; /* actual size of bts_struct in bytes */ - u32 bts_size; + __u32 bts_size; }; #endif -- GitLab From d40e705903397445c6861a0a56c23e5b2e8f9b9a Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Fri, 29 Feb 2008 18:55:43 +0100 Subject: [PATCH 234/923] xen: mask out SEP from CPUID Fix 32-on-64 pvops kernel: we don't want userspace using syscall/sysenter, even if the hypervisor supports it, so mask it out from CPUID. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar --- arch/x86/xen/enlighten.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 49e5358f481..8b9ee27805f 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -153,6 +153,7 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx, if (*ax == 1) maskedx = ~((1 << X86_FEATURE_APIC) | /* disable APIC */ (1 << X86_FEATURE_ACPI) | /* disable ACPI */ + (1 << X86_FEATURE_SEP) | /* disable SEP */ (1 << X86_FEATURE_ACC)); /* thermal monitoring */ asm(XEN_EMULATE_PREFIX "cpuid" -- GitLab From ae778869ae4549628b9e83efe958c3aaa63ed1b9 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Wed, 27 Feb 2008 16:21:10 -0800 Subject: [PATCH 235/923] rcupreempt: fix hibernate/resume in presence of PREEMPT_RCU and hotplug This fixes a oops encountered when doing hibernate/resume in presence of PREEMPT_RCU. The problem was that the code failed to disable preemption when accessing a per-CPU variable. This is OK when called from code that already has preemption disabled, but such is not the case from the suspend/resume code path. Reported-by: Dave Young Tested-by: Dave Young Signed-off-by: Paul E. McKenney Signed-off-by: Ingo Molnar --- kernel/rcupreempt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c index c7c52096df4..845abcd472b 100644 --- a/kernel/rcupreempt.c +++ b/kernel/rcupreempt.c @@ -918,8 +918,9 @@ void rcu_offline_cpu(int cpu) * fix. */ + local_irq_save(flags); rdp = RCU_DATA_ME(); - spin_lock_irqsave(&rdp->lock, flags); + spin_lock(&rdp->lock); *rdp->nexttail = list; if (list) rdp->nexttail = tail; -- GitLab From c9e71002aacc9821e99531dcc130db88bbc8ad05 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 28 Feb 2008 11:51:07 -0800 Subject: [PATCH 236/923] rcupreempt: remove never-migrates assumption from rcu_process_callbacks() This patch fixes a potentially invalid access to a per-CPU variable in rcu_process_callbacks(). This per-CPU access needs to be done in such a way as to guarantee that the code using it cannot move to some other CPU before all uses of the value accessed have completed. Even though this code is currently only invoked from softirq context, which currrently cannot migrate to some other CPU, life would be better if this code did not silently make such an assumption. Signed-off-by: Paul E. McKenney Signed-off-by: Ingo Molnar --- kernel/rcupreempt.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c index 845abcd472b..e9517014b57 100644 --- a/kernel/rcupreempt.c +++ b/kernel/rcupreempt.c @@ -952,9 +952,11 @@ static void rcu_process_callbacks(struct softirq_action *unused) { unsigned long flags; struct rcu_head *next, *list; - struct rcu_data *rdp = RCU_DATA_ME(); + struct rcu_data *rdp; - spin_lock_irqsave(&rdp->lock, flags); + local_irq_save(flags); + rdp = RCU_DATA_ME(); + spin_lock(&rdp->lock); list = rdp->donelist; if (list == NULL) { spin_unlock_irqrestore(&rdp->lock, flags); -- GitLab From 18b8c8f170ce346b88884ebe4060cd6dbe64e1cc Mon Sep 17 00:00:00 2001 From: Arthur Jones Date: Fri, 29 Feb 2008 10:13:37 -0800 Subject: [PATCH 237/923] MAINTAINERS: update ipath owner I'll be leaving QLogic soon for another job and Ralph has graciously offered to take over the IPath driver maintainership. Signed-off-by: Arthur Jones Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index fed09b54733..f229e16d67e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2143,7 +2143,7 @@ L: netdev@vger.kernel.org S: Maintained IPATH DRIVER: -P: Arthur Jones +P: Ralph Campbell M: infinipath@qlogic.com L: general@lists.openfabrics.org T: git git://git.qlogic.com/ipath-linux-2.6 -- GitLab From 84ba284cd78c130818e2de53150f39b92504593b Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Fri, 22 Feb 2008 10:40:45 -0800 Subject: [PATCH 238/923] IB/cm: Flush workqueue when removing device When a CM MAD is received, it is queued to a CM workqueue for processing. The queued work item references the port and device on which the MAD was received. If that device is removed from the system before the work item can execute, the work item will reference freed memory. To fix this, flush the workqueue after unregistering to receive MAD, and before the device is be freed. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index b10ade92efe..4df40515708 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -3759,6 +3759,7 @@ static void cm_remove_one(struct ib_device *device) port = cm_dev->port[i-1]; ib_modify_port(device, port->port_num, 0, &port_modify); ib_unregister_mad_agent(port->mad_agent); + flush_workqueue(cm.wq); cm_remove_port_fs(port); } kobject_put(&cm_dev->dev_obj); @@ -3813,6 +3814,7 @@ static void __exit ib_cm_cleanup(void) cancel_delayed_work(&timewait_info->work.work); spin_unlock_irq(&cm.lock); + ib_unregister_client(&cm_client); destroy_workqueue(cm.wq); list_for_each_entry_safe(timewait_info, tmp, &cm.timewait_list, list) { @@ -3820,7 +3822,6 @@ static void __exit ib_cm_cleanup(void) kfree(timewait_info); } - ib_unregister_client(&cm_client); class_unregister(&cm_class); idr_destroy(&cm.local_id_table); } -- GitLab From 35fb5340e3de5dff86923eb0cded748c3a6e05e7 Mon Sep 17 00:00:00 2001 From: Pete Wyckoff Date: Tue, 26 Feb 2008 13:27:31 -0500 Subject: [PATCH 239/923] Revert "IB/fmr_pool: ib_fmr_pool_flush() should flush all dirty FMRs" This reverts commit a3cd7d9070be417a21905c997ee32d756d999b38. The original commit breaks iSER reliably, making it complain: iser: iser_reg_page_vec:ib_fmr_pool_map_phys failed: -11 The FMR cleanup thread runs ib_fmr_batch_release() as dirty entries build up. This commit causes clean but used FMR entries also to be purged. During that process, another thread can see that there are no free FMRs and fail, even though there should always have been enough available. Signed-off-by: Pete Wyckoff Signed-off-by: Roland Dreier --- drivers/infiniband/core/fmr_pool.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c index 7f00347364f..4044fdf62cc 100644 --- a/drivers/infiniband/core/fmr_pool.c +++ b/drivers/infiniband/core/fmr_pool.c @@ -139,7 +139,7 @@ static inline struct ib_pool_fmr *ib_fmr_cache_lookup(struct ib_fmr_pool *pool, static void ib_fmr_batch_release(struct ib_fmr_pool *pool) { int ret; - struct ib_pool_fmr *fmr, *next; + struct ib_pool_fmr *fmr; LIST_HEAD(unmap_list); LIST_HEAD(fmr_list); @@ -158,20 +158,6 @@ static void ib_fmr_batch_release(struct ib_fmr_pool *pool) #endif } - /* - * The free_list may hold FMRs that have been put there - * because they haven't reached the max_remap count. - * Invalidate their mapping as well. - */ - list_for_each_entry_safe(fmr, next, &pool->free_list, list) { - if (fmr->remap_count == 0) - continue; - hlist_del_init(&fmr->cache_node); - fmr->remap_count = 0; - list_add_tail(&fmr->fmr->list, &fmr_list); - list_move(&fmr->list, &unmap_list); - } - list_splice(&pool->dirty_list, &unmap_list); INIT_LIST_HEAD(&pool->dirty_list); pool->dirty_len = 0; @@ -384,6 +370,11 @@ void ib_destroy_fmr_pool(struct ib_fmr_pool *pool) i = 0; list_for_each_entry_safe(fmr, tmp, &pool->free_list, list) { + if (fmr->remap_count) { + INIT_LIST_HEAD(&fmr_list); + list_add_tail(&fmr->fmr->list, &fmr_list); + ib_unmap_fmr(&fmr_list); + } ib_dealloc_fmr(fmr->fmr); list_del(&fmr->list); kfree(fmr); -- GitLab From 331552925d17ffa2f5c676e282d4fd37c852d9e3 Mon Sep 17 00:00:00 2001 From: Pete Wyckoff Date: Tue, 26 Feb 2008 13:27:53 -0500 Subject: [PATCH 240/923] IB/fmr_pool: Flush all dirty FMRs from ib_fmr_pool_flush() Commit a3cd7d90 ("IB/fmr_pool: ib_fmr_pool_flush() should flush all dirty FMRs") caused a regression for iSER and was reverted in e5507736. This change attempts to redo the original patch so that all used FMR entries are flushed when ib_flush_fmr_pool() is called without affecting the normal FMR pool cleaning thread. Simply move used entries from the clean list onto the dirty list in ib_flush_fmr_pool() before letting the cleanup thread do its job. Signed-off-by: Pete Wyckoff Signed-off-by: Roland Dreier --- drivers/infiniband/core/fmr_pool.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c index 4044fdf62cc..06d502c06a4 100644 --- a/drivers/infiniband/core/fmr_pool.c +++ b/drivers/infiniband/core/fmr_pool.c @@ -398,8 +398,23 @@ EXPORT_SYMBOL(ib_destroy_fmr_pool); */ int ib_flush_fmr_pool(struct ib_fmr_pool *pool) { - int serial = atomic_inc_return(&pool->req_ser); + int serial; + struct ib_pool_fmr *fmr, *next; + + /* + * The free_list holds FMRs that may have been used + * but have not been remapped enough times to be dirty. + * Put them on the dirty list now so that the cleanup + * thread will reap them too. + */ + spin_lock_irq(&pool->pool_lock); + list_for_each_entry_safe(fmr, next, &pool->free_list, list) { + if (fmr->remap_count > 0) + list_move(&fmr->list, &pool->dirty_list); + } + spin_unlock_irq(&pool->pool_lock); + serial = atomic_inc_return(&pool->req_ser); wake_up_process(pool->thread); if (wait_event_interruptible(pool->force_wait, -- GitLab From 1bab74e691d3c7845df2342d202c0f1c2344c834 Mon Sep 17 00:00:00 2001 From: Jon Mason Date: Fri, 29 Feb 2008 13:53:18 -0800 Subject: [PATCH 241/923] RDMA/cxgb3: Return correct max_inline_data when creating a QP Set cap.max_inline_data to the actual max inline data that the adapter support, so that userspace apps see the right value returned. Signed-off-by: Jon Mason Acked-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/iwch_provider.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index df1838f8f94..ee3d63cd1f9 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -819,8 +819,11 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd, kfree(qhp); return ERR_PTR(-ENOMEM); } + attrs->cap.max_recv_wr = rqsize - 1; attrs->cap.max_send_wr = sqsize; + attrs->cap.max_inline_data = T3_MAX_INLINE; + qhp->rhp = rhp; qhp->attr.pd = php->pdid; qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid; -- GitLab From b98d7291883f7ed27e3f4b59bc12dc963c9f72a6 Mon Sep 17 00:00:00 2001 From: Uli Luckas Date: Fri, 22 Feb 2008 16:45:18 +0100 Subject: [PATCH 242/923] [ARM] 4836/1: Make ATAGS_PROC depend on KEXEC On Wed, Feb 20, 2008 at 11:50:33AM +0100, Guennadi Liakhovetski wrote: > arch/arm/kernel/atags.c uses for some reason the > KEXEC_BOOT_PARAMS_SIZE macro, which is only defined if CONFIG_KEXEC > is set. So, either this macro should be defined always, or another > macro should be used, or ATAGS_PROC should depend on KEXEC. As the procfs export of ATAGS is not meant as a stable, general purpose ABI it shouldn't be an independent, general configuration option. This patch make ATAGS_PROC depend on KEXEC Signed-off-by: Uli Luckas Signed-off-by: Russell King --- arch/arm/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 9619c43783f..16b82e1272b 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -939,7 +939,8 @@ config KEXEC config ATAGS_PROC bool "Export atags in procfs" - default n + depends on KEXEC + default y help Should the atags used to boot the kernel be exported in an "atags" file in procfs. Useful with kexec. -- GitLab From 94a3f78566ef98a48814d82892f28bb741624cb8 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Sat, 23 Feb 2008 00:23:48 +0100 Subject: [PATCH 243/923] [ARM] 4837/1: make __get_unaligned_*() return unsigned types Eric Sandeen tracked an XFS on ARM corruption bug down to a function under fs/xfs/ involving some get_unaligned() calls on u64 pointers. As it turns out, calling ARM's get_unaligned() on a u64 pointer pointing to the following byte sequence: 80 81 82 83 84 85 86 87 would return ffffffff83828180 (LE mode.) This turns out to be because of implicit u8 -> int promotion in ARM's implementation of various helpers for get_unaligned(), causing them to accidentally return signed instead of unsigned values, which in turn caused the subsequent casts to unsigned long long in __get_unaligned_8_[bl]e() to sign-extend the lower words. Fix by casting the return values of __get_unaligned_[24]_[bl]e() to unsigned int. Cc: Eric Sandeen Cc: Rabeeh Khoury Cc: Nicolas Pitre Signed-off-by: Lennert Buytenhek Signed-off-by: Russell King --- include/asm-arm/unaligned.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/include/asm-arm/unaligned.h b/include/asm-arm/unaligned.h index 8431f6eed5c..5db03cf3b90 100644 --- a/include/asm-arm/unaligned.h +++ b/include/asm-arm/unaligned.h @@ -40,16 +40,16 @@ extern int __bug_unaligned_x(const void *ptr); */ #define __get_unaligned_2_le(__p) \ - (__p[0] | __p[1] << 8) + (unsigned int)(__p[0] | __p[1] << 8) #define __get_unaligned_2_be(__p) \ - (__p[0] << 8 | __p[1]) + (unsigned int)(__p[0] << 8 | __p[1]) #define __get_unaligned_4_le(__p) \ - (__p[0] | __p[1] << 8 | __p[2] << 16 | __p[3] << 24) + (unsigned int)(__p[0] | __p[1] << 8 | __p[2] << 16 | __p[3] << 24) #define __get_unaligned_4_be(__p) \ - (__p[0] << 24 | __p[1] << 16 | __p[2] << 8 | __p[3]) + (unsigned int)(__p[0] << 24 | __p[1] << 16 | __p[2] << 8 | __p[3]) #define __get_unaligned_8_le(__p) \ ((unsigned long long)__get_unaligned_4_le((__p+4)) << 32 | \ -- GitLab From 5ce94e9e8b469a17fbd3efa1b940c19b5e43449a Mon Sep 17 00:00:00 2001 From: Thomas Kunze Date: Sun, 24 Feb 2008 17:59:34 +0100 Subject: [PATCH 244/923] [ARM] 4838/1: Fix kexec for SA1100 machines This patch sets KEXEC_CONTROL_MEMORY_LIMIT to (-1)UL. As the value is compared with physical addresses TASK_SIZE makes no sense. Machines where the RAM addresses start above TASK_SIZE kexecs eats all memory and crashes the kernel without this patch. Signed-off-by: Thomas Kunze Acked-by: Richard Purdie Signed-off-by: Russell King --- include/asm-arm/kexec.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-arm/kexec.h b/include/asm-arm/kexec.h index 1ee17b6951d..47fe34d692d 100644 --- a/include/asm-arm/kexec.h +++ b/include/asm-arm/kexec.h @@ -8,7 +8,7 @@ /* Maximum address we can reach in physical address mode */ #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) /* Maximum address we can use for the control code buffer */ -#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE +#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) #define KEXEC_CONTROL_CODE_SIZE 4096 -- GitLab From c710e39cbec4f3d60acd07f5356404a61bc1959a Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 27 Feb 2008 12:11:16 -0800 Subject: [PATCH 245/923] [ARM] eliminate MODULE_PARM() usage Convert debug-only (and removed) MODULE_PARM() to module_param(). Compiles cleanly (with DEBUG=1). Signed-off-by: Randy Dunlap Signed-off-by: Russell King --- arch/arm/mach-pxa/cpu-pxa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-pxa/cpu-pxa.c b/arch/arm/mach-pxa/cpu-pxa.c index 939a3867f77..4b21479332a 100644 --- a/arch/arm/mach-pxa/cpu-pxa.c +++ b/arch/arm/mach-pxa/cpu-pxa.c @@ -43,7 +43,7 @@ #ifdef DEBUG static unsigned int freq_debug; -MODULE_PARM(freq_debug, "i"); +module_param(freq_debug, uint, 0); MODULE_PARM_DESC(freq_debug, "Set the debug messages to on=1/off=0"); #else #define freq_debug 0 -- GitLab From 9ae3ae0bebb9a3a348dc233229008b126014889d Mon Sep 17 00:00:00 2001 From: Alexandre Rusev Date: Tue, 26 Feb 2008 18:42:10 +0100 Subject: [PATCH 246/923] [ARM] 4839/1: fixes kernel Oops in /dev/mem device driver for memory map with PHYS_OFF "cat /dev/mem" may cause kernel Oops for boards with PHYS_OFFSET != 0 because character device is mapped to addresses starting from zero and there is no protection against such situation. Patch just add this. Signed-off-by: Alexandre Rusev Signed-off-by: Russell King --- arch/arm/mm/mmap.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c index 2728b0e7d2b..3f6dc40b835 100644 --- a/arch/arm/mm/mmap.c +++ b/arch/arm/mm/mmap.c @@ -120,6 +120,8 @@ full_search: */ int valid_phys_addr_range(unsigned long addr, size_t size) { + if (addr < PHYS_OFFSET) + return 0; if (addr + size > __pa(high_memory)) return 0; -- GitLab From a3359e21c06cb5b366fb47307b3d2fd23386a774 Mon Sep 17 00:00:00 2001 From: eric miao Date: Wed, 27 Feb 2008 01:59:28 +0100 Subject: [PATCH 247/923] [ARM] 4840/1: pxa: fix the typo in get_irqnr_and_base This typo causes the incorrect calculation of the IRQ numbers in the ICIP2 registers. Signed-off-by: eric miao Signed-off-by: Russell King --- include/asm-arm/arch-pxa/entry-macro.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-arm/arch-pxa/entry-macro.S b/include/asm-arm/arch-pxa/entry-macro.S index b7e73085146..c145bb01bc8 100644 --- a/include/asm-arm/arch-pxa/entry-macro.S +++ b/include/asm-arm/arch-pxa/entry-macro.S @@ -35,7 +35,7 @@ 1004: mrc p6, 0, \irqstat, c6, c0, 0 @ ICIP2 mrc p6, 0, \irqnr, c7, c0, 0 @ ICMR2 - ands \irqstat, \irqstat, \irqnr + ands \irqnr, \irqstat, \irqnr beq 1003f rsb \irqstat, \irqnr, #0 and \irqstat, \irqstat, \irqnr -- GitLab From 7a987e82cd9175215dec6339d383d64e551c8899 Mon Sep 17 00:00:00 2001 From: eric miao Date: Wed, 27 Feb 2008 02:00:26 +0100 Subject: [PATCH 248/923] [ARM] 4841/1: pxa: fix typo in LCD platform data definition code for zylonite Signed-off-by: eric miao Signed-off-by: Russell King --- arch/arm/mach-pxa/zylonite.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c index 7731d50dd86..afd2cbfca0d 100644 --- a/arch/arm/mach-pxa/zylonite.c +++ b/arch/arm/mach-pxa/zylonite.c @@ -58,7 +58,7 @@ static struct platform_device smc91x_device = { .resource = smc91x_resources, }; -#if defined(CONFIG_FB_PXA) || (CONFIG_FB_PXA_MODULES) +#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) static void zylonite_backlight_power(int on) { gpio_set_value(gpio_backlight, on); -- GitLab From ceee4f98f73bb7a1f6ee6710b9ebffd0ecb8c0ca Mon Sep 17 00:00:00 2001 From: eric miao Date: Wed, 27 Feb 2008 02:01:11 +0100 Subject: [PATCH 249/923] [ARM] 4842/1: pxa: remove redundant IRQ saving/restoring in clk_pxa3xx_cken_* This is unnecessary since it is already protected by spin_lock_irq{save, restore} in clock.c. Signed-off-by: eric miao Signed-off-by: Russell King --- arch/arm/mach-pxa/pxa3xx.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c index 7cd9ef8deb0..35f25fdaeba 100644 --- a/arch/arm/mach-pxa/pxa3xx.c +++ b/arch/arm/mach-pxa/pxa3xx.c @@ -129,28 +129,20 @@ static void clk_pxa3xx_cken_enable(struct clk *clk) { unsigned long mask = 1ul << (clk->cken & 0x1f); - local_irq_disable(); - if (clk->cken < 32) CKENA |= mask; else CKENB |= mask; - - local_irq_enable(); } static void clk_pxa3xx_cken_disable(struct clk *clk) { unsigned long mask = 1ul << (clk->cken & 0x1f); - local_irq_disable(); - if (clk->cken < 32) CKENA &= ~mask; else CKENB &= ~mask; - - local_irq_enable(); } static const struct clkops clk_pxa3xx_cken_ops = { -- GitLab From d862ccc570c875e1454fc57ed00f5a1081985b26 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Feb 2008 15:34:56 +0100 Subject: [PATCH 250/923] [ARM] 4843/1: Add GCR_CLKBPB for PXA3xx The PXA3xx AC97 controller has an additional control bit GCR_CLKBPB which must be used during cold reset. Signed-off-by: Mark Brown Acked-by: eric miao Signed-off-by: Russell King --- include/asm-arm/arch-pxa/pxa-regs.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h index ac175b4d10c..2357a73340d 100644 --- a/include/asm-arm/arch-pxa/pxa-regs.h +++ b/include/asm-arm/arch-pxa/pxa-regs.h @@ -520,6 +520,9 @@ #define MCCR_FSRIE (1 << 1) /* FIFO Service Request Interrupt Enable */ #define GCR __REG(0x4050000C) /* Global Control Register */ +#ifdef CONFIG_PXA3xx +#define GCR_CLKBPB (1 << 31) /* Internal clock enable */ +#endif #define GCR_nDMAEN (1 << 24) /* non DMA Enable */ #define GCR_CDONE_IE (1 << 19) /* Command Done Interrupt Enable */ #define GCR_SDONE_IE (1 << 18) /* Status Done Interrupt Enable */ -- GitLab From b445c56815d84b9fce40707f99811bdc354458e0 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Fri, 29 Feb 2008 19:10:51 -0500 Subject: [PATCH 251/923] [libata] wrap kmap_atomic(KM_IRQ0) with local_irq_save/restore() Interrupts must be disabled if using kmap_atomic(KM_IRQ0), but that was not the case in a few code paths coming directly from ATA driver interrupt handlers (which use spin_lock rather than spin_lock_irqsave). Signed-off-by: Jeff Garzik --- drivers/ata/libata-scsi.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 0562b0a49f3..7b1f1ee8131 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1694,12 +1694,17 @@ void ata_scsi_rbuf_fill(struct ata_scsi_args *args, u8 *rbuf; unsigned int buflen, rc; struct scsi_cmnd *cmd = args->cmd; + unsigned long flags; + + local_irq_save(flags); buflen = ata_scsi_rbuf_get(cmd, &rbuf); memset(rbuf, 0, buflen); rc = actor(args, rbuf, buflen); ata_scsi_rbuf_put(cmd, rbuf); + local_irq_restore(flags); + if (rc == 0) cmd->result = SAM_STAT_GOOD; args->done(cmd); @@ -2473,6 +2478,9 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc) if ((scsicmd[0] == INQUIRY) && ((scsicmd[1] & 0x03) == 0)) { u8 *buf = NULL; unsigned int buflen; + unsigned long flags; + + local_irq_save(flags); buflen = ata_scsi_rbuf_get(cmd, &buf); @@ -2490,6 +2498,8 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc) } ata_scsi_rbuf_put(cmd, buf); + + local_irq_restore(flags); } cmd->result = SAM_STAT_GOOD; -- GitLab From 422b03cf75e11dfdfb29b0f19709bac585335f86 Mon Sep 17 00:00:00 2001 From: Paul Moore Date: Wed, 27 Feb 2008 10:39:22 -0500 Subject: [PATCH 252/923] [PATCH] Audit: Fix the format type for size_t variables Fix the following compiler warning by using "%zu" as defined in C99. CC kernel/auditsc.o kernel/auditsc.c: In function 'audit_log_single_execve_arg': kernel/auditsc.c:1074: warning: format '%ld' expects type 'long int', but argument 4 has type 'size_t' Signed-off-by: Paul Moore Signed-off-by: Al Viro --- kernel/auditsc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 2087d6de67e..782262e4107 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1070,7 +1070,7 @@ static int audit_log_single_execve_arg(struct audit_context *context, * so we can be sure nothing was lost. */ if ((i == 0) && (too_long)) - audit_log_format(*ab, "a%d_len=%ld ", arg_num, + audit_log_format(*ab, "a%d_len=%zu ", arg_num, has_cntl ? 2*len : len); /* -- GitLab From b29ee87e9b441e72454efd1be56aa1a05ffb2f58 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 21 Feb 2008 15:53:05 -0500 Subject: [PATCH 253/923] [RFC] AUDIT: do not panic when printk loses messages On the latest kernels if one was to load about 15 rules, set the failure state to panic, and then run service auditd stop the kernel will panic. This is because auditd stops, then the script deletes all of the rules. These deletions are sent as audit messages out of the printk kernel interface which is already known to be lossy. These will overun the default kernel rate limiting (10 really fast messages) and will call audit_panic(). The same effect can happen if a slew of avc's come through while auditd is stopped. This can be fixed a number of ways but this patch fixes the problem by just not panicing if auditd is not running. We know printk is lossy and if the user chooses to set the failure mode to panic and tries to use printk we can't make any promises no matter how hard we try, so why try? At least in this way we continue to get lost message accounting and will eventually know that things went bad. The other change is to add a new call to audit_log_lost() if auditd disappears. We already pulled the skb off the queue and couldn't send it so that message is lost. At least this way we will account for the last message and panic if the machine is configured to panic. This code path should only be run if auditd dies for unforeseen reasons. If auditd closes correctly audit_pid will get set to 0 and we won't walk this code path. Signed-off-by: Al Viro --- kernel/audit.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/kernel/audit.c b/kernel/audit.c index 2eeea9a1424..6d7175c1e87 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -170,7 +170,9 @@ void audit_panic(const char *message) printk(KERN_ERR "audit: %s\n", message); break; case AUDIT_FAIL_PANIC: - panic("audit: %s\n", message); + /* test audit_pid since printk is always losey, why bother? */ + if (audit_pid) + panic("audit: %s\n", message); break; } } @@ -352,6 +354,7 @@ static int kauditd_thread(void *dummy) if (err < 0) { BUG_ON(err != -ECONNREFUSED); /* Shoudn't happen */ printk(KERN_ERR "audit: *NO* daemon at audit_pid=%d\n", audit_pid); + audit_log_lost("auditd dissapeared\n"); audit_pid = 0; } } else { -- GitLab From 8d07a67cface19ac07d7324f38bda7bbb06bbdb2 Mon Sep 17 00:00:00 2001 From: Steve Grubb Date: Thu, 21 Feb 2008 16:59:22 -0500 Subject: [PATCH 254/923] [PATCH] drop EOE records from printk Hi, While we are looking at the printk issue, I see that its printk'ing the EOE (end of event) records which is really not something that we need in syslog. Its really intended for the realtime audit event stream handled by the audit daemon. So, lets avoid printk'ing that record type. Signed-off-by: Steve Grubb Signed-off-by: Al Viro --- kernel/audit.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/kernel/audit.c b/kernel/audit.c index 6d7175c1e87..10c4930c2bb 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -1353,17 +1353,19 @@ void audit_log_end(struct audit_buffer *ab) if (!audit_rate_check()) { audit_log_lost("rate limit exceeded"); } else { + struct nlmsghdr *nlh = nlmsg_hdr(ab->skb); if (audit_pid) { - struct nlmsghdr *nlh = nlmsg_hdr(ab->skb); nlh->nlmsg_len = ab->skb->len - NLMSG_SPACE(0); skb_queue_tail(&audit_skb_queue, ab->skb); ab->skb = NULL; wake_up_interruptible(&kauditd_wait); - } else if (printk_ratelimit()) { - struct nlmsghdr *nlh = nlmsg_hdr(ab->skb); - printk(KERN_NOTICE "type=%d %s\n", nlh->nlmsg_type, ab->skb->data + NLMSG_SPACE(0)); - } else { - audit_log_lost("printk limit exceeded\n"); + } else if (nlh->nlmsg_type != AUDIT_EOE) { + if (printk_ratelimit()) { + printk(KERN_NOTICE "type=%d %s\n", + nlh->nlmsg_type, + ab->skb->data + NLMSG_SPACE(0)); + } else + audit_log_lost("printk limit exceeded\n"); } } audit_buffer_free(ab); -- GitLab From 0c82d83cb09a1c9fd4d24d32064ce827709c104b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 27 Feb 2008 13:44:59 +0100 Subject: [PATCH 255/923] [ARM] Fix freeing of page tables for ARM in free_pgd_slow MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Since 2f569af (CONFIG_HIGHPTE vs. sub-page page tables.) pte_free() calls pte_lock_deinit() and dec_zone_page_state(). So free_pgd_slow must not call the latter two when calling the first. Signed-off-by: Uwe Kleine-König Cc: Martin Schwidefsky Cc: Andrew Morton Cc: Linus Torvalds Signed-off-by: Russell King --- arch/arm/mm/pgd.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c index 500c9610ab3..e0f19ab9116 100644 --- a/arch/arm/mm/pgd.c +++ b/arch/arm/mm/pgd.c @@ -75,7 +75,7 @@ no_pgd: void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd) { pmd_t *pmd; - struct page *pte; + pgtable_t pte; if (!pgd) return; @@ -90,10 +90,8 @@ void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd) goto free; } - pte = pmd_page(*pmd); + pte = pmd_pgtable(*pmd); pmd_clear(pmd); - dec_zone_page_state(virt_to_page((unsigned long *)pgd), NR_PAGETABLE); - pte_lock_deinit(pte); pte_free(mm, pte); pmd_free(mm, pmd); free: -- GitLab From f8436158b1d76e6842856048f287799468b56eb2 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Tue, 26 Feb 2008 23:30:02 +0100 Subject: [PATCH 256/923] firewire: fw-sbp2: better fix for NULL pointer dereference in scsi_remove_device Patch "firewire: fw-sbp2: fix NULL pointer deref. in scsi_remove_device" had the unintended effect that firewire-sbp2 could not be unloaded anymore until all SBP-2 devices were unplugged. We now fix the NULL pointer bug by reacquiring a reference to the sdev instead of holding a reference to the sdev (and to the module) all the time. Signed-off-by: Stefan Richter Tested-by: Jarod Wilson --- drivers/firewire/fw-sbp2.c | 46 ++++++++++++++++++++++---------------- 1 file changed, 27 insertions(+), 19 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 5259491580f..a093ac329db 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -122,7 +122,6 @@ static const char sbp2_driver_name[] = "sbp2"; struct sbp2_logical_unit { struct sbp2_target *tgt; struct list_head link; - struct scsi_device *sdev; struct fw_address_handler address_handler; struct list_head orb_list; @@ -139,6 +138,7 @@ struct sbp2_logical_unit { int generation; int retries; struct delayed_work work; + bool has_sdev; bool blocked; }; @@ -751,20 +751,33 @@ static void sbp2_unblock(struct sbp2_target *tgt) scsi_unblock_requests(shost); } +static int sbp2_lun2int(u16 lun) +{ + struct scsi_lun eight_bytes_lun; + + memset(&eight_bytes_lun, 0, sizeof(eight_bytes_lun)); + eight_bytes_lun.scsi_lun[0] = (lun >> 8) & 0xff; + eight_bytes_lun.scsi_lun[1] = lun & 0xff; + + return scsilun_to_int(&eight_bytes_lun); +} + static void sbp2_release_target(struct kref *kref) { struct sbp2_target *tgt = container_of(kref, struct sbp2_target, kref); struct sbp2_logical_unit *lu, *next; struct Scsi_Host *shost = container_of((void *)tgt, struct Scsi_Host, hostdata[0]); + struct scsi_device *sdev; /* prevent deadlocks */ sbp2_unblock(tgt); list_for_each_entry_safe(lu, next, &tgt->lu_list, link) { - if (lu->sdev) { - scsi_remove_device(lu->sdev); - scsi_device_put(lu->sdev); + sdev = scsi_device_lookup(shost, 0, 0, sbp2_lun2int(lu->lun)); + if (sdev) { + scsi_remove_device(sdev); + scsi_device_put(sdev); } sbp2_send_management_orb(lu, tgt->node_id, lu->generation, SBP2_LOGOUT_REQUEST, lu->login_id, NULL); @@ -807,7 +820,6 @@ static void sbp2_login(struct work_struct *work) struct fw_device *device = fw_device(tgt->unit->device.parent); struct Scsi_Host *shost; struct scsi_device *sdev; - struct scsi_lun eight_bytes_lun; struct sbp2_login_response response; int generation, node_id, local_node_id; @@ -820,7 +832,7 @@ static void sbp2_login(struct work_struct *work) local_node_id = device->card->node_id; /* If this is a re-login attempt, log out, or we might be rejected. */ - if (lu->sdev) + if (lu->has_sdev) sbp2_send_management_orb(lu, device->node_id, generation, SBP2_LOGOUT_REQUEST, lu->login_id, NULL); @@ -859,7 +871,7 @@ static void sbp2_login(struct work_struct *work) sbp2_agent_reset(lu); /* This was a re-login. */ - if (lu->sdev) { + if (lu->has_sdev) { sbp2_cancel_orbs(lu); sbp2_conditionally_unblock(lu); goto out; @@ -868,13 +880,8 @@ static void sbp2_login(struct work_struct *work) if (lu->tgt->workarounds & SBP2_WORKAROUND_DELAY_INQUIRY) ssleep(SBP2_INQUIRY_DELAY); - memset(&eight_bytes_lun, 0, sizeof(eight_bytes_lun)); - eight_bytes_lun.scsi_lun[0] = (lu->lun >> 8) & 0xff; - eight_bytes_lun.scsi_lun[1] = lu->lun & 0xff; shost = container_of((void *)tgt, struct Scsi_Host, hostdata[0]); - - sdev = __scsi_add_device(shost, 0, 0, - scsilun_to_int(&eight_bytes_lun), lu); + sdev = __scsi_add_device(shost, 0, 0, sbp2_lun2int(lu->lun), lu); /* * FIXME: We are unable to perform reconnects while in sbp2_login(). * Therefore __scsi_add_device() will get into trouble if a bus reset @@ -896,7 +903,8 @@ static void sbp2_login(struct work_struct *work) } /* No error during __scsi_add_device() */ - lu->sdev = sdev; + lu->has_sdev = true; + scsi_device_put(sdev); sbp2_allow_block(lu); goto out; @@ -934,11 +942,11 @@ static int sbp2_add_logical_unit(struct sbp2_target *tgt, int lun_entry) return -ENOMEM; } - lu->tgt = tgt; - lu->sdev = NULL; - lu->lun = lun_entry & 0xffff; - lu->retries = 0; - lu->blocked = false; + lu->tgt = tgt; + lu->lun = lun_entry & 0xffff; + lu->retries = 0; + lu->has_sdev = false; + lu->blocked = false; ++tgt->dont_block; INIT_LIST_HEAD(&lu->orb_list); INIT_DELAYED_WORK(&lu->work, sbp2_login); -- GitLab From 15803478fdea964e5f76079851fcd13068208d5d Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 24 Feb 2008 18:57:23 +0100 Subject: [PATCH 257/923] firewire: potentially invalid pointers used in fw_card_bm_work The bus management workqueue job was in danger to dereference NULL pointers. Also, after having temporarily lifted card->lock, a few node pointers and a device pointer may have become invalid. Add NULL pointer checks and get the necessary references. Also, move card->local_node out of fw_card_bm_work's sight during shutdown of the card. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-card.c | 51 ++++++++++++++++++++++------------ drivers/firewire/fw-topology.c | 1 + 2 files changed, 35 insertions(+), 17 deletions(-) diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c index 3e9719948a8..e6395b29850 100644 --- a/drivers/firewire/fw-card.c +++ b/drivers/firewire/fw-card.c @@ -214,17 +214,29 @@ static void fw_card_bm_work(struct work_struct *work) { struct fw_card *card = container_of(work, struct fw_card, work.work); - struct fw_device *root; + struct fw_device *root_device; + struct fw_node *root_node, *local_node; struct bm_data bmd; unsigned long flags; int root_id, new_root_id, irm_id, gap_count, generation, grace; int do_reset = 0; spin_lock_irqsave(&card->lock, flags); + local_node = card->local_node; + root_node = card->root_node; + + if (local_node == NULL) { + spin_unlock_irqrestore(&card->lock, flags); + return; + } + fw_node_get(local_node); + fw_node_get(root_node); generation = card->generation; - root = card->root_node->data; - root_id = card->root_node->node_id; + root_device = root_node->data; + if (root_device) + fw_device_get(root_device); + root_id = root_node->node_id; grace = time_after(jiffies, card->reset_jiffies + DIV_ROUND_UP(HZ, 10)); if (card->bm_generation + 1 == generation || @@ -243,14 +255,14 @@ fw_card_bm_work(struct work_struct *work) irm_id = card->irm_node->node_id; if (!card->irm_node->link_on) { - new_root_id = card->local_node->node_id; + new_root_id = local_node->node_id; fw_notify("IRM has link off, making local node (%02x) root.\n", new_root_id); goto pick_me; } bmd.lock.arg = cpu_to_be32(0x3f); - bmd.lock.data = cpu_to_be32(card->local_node->node_id); + bmd.lock.data = cpu_to_be32(local_node->node_id); spin_unlock_irqrestore(&card->lock, flags); @@ -267,12 +279,12 @@ fw_card_bm_work(struct work_struct *work) * Another bus reset happened. Just return, * the BM work has been rescheduled. */ - return; + goto out; } if (bmd.rcode == RCODE_COMPLETE && bmd.old != 0x3f) /* Somebody else is BM, let them do the work. */ - return; + goto out; spin_lock_irqsave(&card->lock, flags); if (bmd.rcode != RCODE_COMPLETE) { @@ -282,7 +294,7 @@ fw_card_bm_work(struct work_struct *work) * do a bus reset and pick the local node as * root, and thus, IRM. */ - new_root_id = card->local_node->node_id; + new_root_id = local_node->node_id; fw_notify("BM lock failed, making local node (%02x) root.\n", new_root_id); goto pick_me; @@ -295,7 +307,7 @@ fw_card_bm_work(struct work_struct *work) */ spin_unlock_irqrestore(&card->lock, flags); schedule_delayed_work(&card->work, DIV_ROUND_UP(HZ, 10)); - return; + goto out; } /* @@ -305,20 +317,20 @@ fw_card_bm_work(struct work_struct *work) */ card->bm_generation = generation; - if (root == NULL) { + if (root_device == NULL) { /* * Either link_on is false, or we failed to read the * config rom. In either case, pick another root. */ - new_root_id = card->local_node->node_id; - } else if (atomic_read(&root->state) != FW_DEVICE_RUNNING) { + new_root_id = local_node->node_id; + } else if (atomic_read(&root_device->state) != FW_DEVICE_RUNNING) { /* * If we haven't probed this device yet, bail out now * and let's try again once that's done. */ spin_unlock_irqrestore(&card->lock, flags); - return; - } else if (root->config_rom[2] & BIB_CMC) { + goto out; + } else if (root_device->config_rom[2] & BIB_CMC) { /* * FIXME: I suppose we should set the cmstr bit in the * STATE_CLEAR register of this node, as described in @@ -332,7 +344,7 @@ fw_card_bm_work(struct work_struct *work) * successfully read the config rom, but it's not * cycle master capable. */ - new_root_id = card->local_node->node_id; + new_root_id = local_node->node_id; } pick_me: @@ -341,8 +353,8 @@ fw_card_bm_work(struct work_struct *work) * the typically much larger 1394b beta repeater delays though. */ if (!card->beta_repeaters_present && - card->root_node->max_hops < ARRAY_SIZE(gap_count_table)) - gap_count = gap_count_table[card->root_node->max_hops]; + root_node->max_hops < ARRAY_SIZE(gap_count_table)) + gap_count = gap_count_table[root_node->max_hops]; else gap_count = 63; @@ -364,6 +376,11 @@ fw_card_bm_work(struct work_struct *work) fw_send_phy_config(card, new_root_id, generation, gap_count); fw_core_initiate_bus_reset(card, 1); } + out: + if (root_device) + fw_device_put(root_device); + fw_node_put(root_node); + fw_node_put(local_node); } static void diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c index 172c1867e9a..e47bb040197 100644 --- a/drivers/firewire/fw-topology.c +++ b/drivers/firewire/fw-topology.c @@ -383,6 +383,7 @@ void fw_destroy_nodes(struct fw_card *card) card->color++; if (card->local_node != NULL) for_each_fw_node(card, card->local_node, report_lost_node); + card->local_node = NULL; spin_unlock_irqrestore(&card->lock, flags); } -- GitLab From 855c603d61ede7e2810217f15f0d574b4f29c891 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Wed, 27 Feb 2008 22:14:27 +0100 Subject: [PATCH 258/923] firewire: fix crash in automatic module unloading "modprobe firewire-ohci; sleep .1; modprobe -r firewire-ohci" used to result in crashes like this: BUG: unable to handle kernel paging request at ffffffff8807b455 IP: [] PGD 203067 PUD 207063 PMD 7c170067 PTE 0 Oops: 0010 [1] PREEMPT SMP CPU 0 Modules linked in: i915 drm cpufreq_ondemand acpi_cpufreq freq_table applesmc input_polldev led_class coretemp hwmon eeprom snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss button thermal processor sg snd_hda_intel snd_pcm snd_timer snd snd_page_alloc sky2 i2c_i801 rtc [last unloaded: crc_itu_t] Pid: 9, comm: events/0 Not tainted 2.6.25-rc2 #3 RIP: 0010:[] [] RSP: 0018:ffff81007dcdde88 EFLAGS: 00010246 RAX: ffff81007dc95040 RBX: ffff81007dee5390 RCX: 0000000000005e13 RDX: 0000000000008c8b RSI: 0000000000000001 RDI: ffff81007dee5388 RBP: ffff81007dc5eb40 R08: 0000000000000002 R09: ffffffff8022d05c R10: ffffffff8023b34c R11: ffffffff8041a353 R12: ffff81007dee5388 R13: ffffffff8807b455 R14: ffffffff80593bc0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffffffff8055a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: ffffffff8807b455 CR3: 0000000000201000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process events/0 (pid: 9, threadinfo ffff81007dcdc000, task ffff81007dc95040) Stack: ffffffff8023b396 ffffffff88082524 0000000000000000 ffffffff8807d9ae ffff81007dc5eb40 ffff81007dc9dce0 ffff81007dc5eb40 ffff81007dc5eb80 ffff81007dc9dce0 ffffffffffffffff ffffffff8023be87 0000000000000000 Call Trace: [] ? run_workqueue+0xdf/0x1df [] ? worker_thread+0xd8/0xe3 [] ? autoremove_wake_function+0x0/0x2e [] ? worker_thread+0x0/0xe3 [] ? kthread+0x47/0x74 [] ? trace_hardirqs_on_thunk+0x35/0x3a [] ? child_rip+0xa/0x12 [] ? restore_args+0x0/0x3d [] ? kthreadd+0x14c/0x171 [] ? kthreadd+0x14c/0x171 [] ? kthread+0x0/0x74 [] ? child_rip+0x0/0x12 Code: Bad RIP value. RIP [] RSP CR2: ffffffff8807b455 ---[ end trace c7366c6657fe5bed ]--- Note that this crash happened _after_ firewire-core was unloaded. The shared workqueue tried to run firewire-core's device initialization jobs or similar jobs. The fix makes sure that firewire-ohci and hence firewire-core is not unloaded before all device shutdown jobs have been completed. This is determined by the count of device initializations minus device releases. Also skip useless retries in the node initialization job if the node is to be shut down. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-card.c | 10 +++++++++- drivers/firewire/fw-device.c | 21 ++++++--------------- drivers/firewire/fw-device.h | 16 ++++++++++++++-- drivers/firewire/fw-sbp2.c | 4 ++++ drivers/firewire/fw-transaction.h | 2 ++ 5 files changed, 35 insertions(+), 18 deletions(-) diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c index e6395b29850..a03462750b9 100644 --- a/drivers/firewire/fw-card.c +++ b/drivers/firewire/fw-card.c @@ -18,6 +18,7 @@ #include #include +#include #include #include #include @@ -398,6 +399,7 @@ fw_card_initialize(struct fw_card *card, const struct fw_card_driver *driver, static atomic_t index = ATOMIC_INIT(-1); kref_init(&card->kref); + atomic_set(&card->device_count, 0); card->index = atomic_inc_return(&index); card->driver = driver; card->device = device; @@ -528,8 +530,14 @@ fw_core_remove_card(struct fw_card *card) card->driver = &dummy_driver; fw_destroy_nodes(card); - flush_scheduled_work(); + /* + * Wait for all device workqueue jobs to finish. Otherwise the + * firewire-core module could be unloaded before the jobs ran. + */ + while (atomic_read(&card->device_count) > 0) + msleep(100); + cancel_delayed_work_sync(&card->work); fw_flush_transactions(card); del_timer_sync(&card->flush_timer); diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c index 2ab13e0f346..870125a3638 100644 --- a/drivers/firewire/fw-device.c +++ b/drivers/firewire/fw-device.c @@ -150,21 +150,10 @@ struct bus_type fw_bus_type = { }; EXPORT_SYMBOL(fw_bus_type); -struct fw_device *fw_device_get(struct fw_device *device) -{ - get_device(&device->device); - - return device; -} - -void fw_device_put(struct fw_device *device) -{ - put_device(&device->device); -} - static void fw_device_release(struct device *dev) { struct fw_device *device = fw_device(dev); + struct fw_card *card = device->card; unsigned long flags; /* @@ -176,9 +165,9 @@ static void fw_device_release(struct device *dev) spin_unlock_irqrestore(&device->card->lock, flags); fw_node_put(device->node); - fw_card_put(device->card); kfree(device->config_rom); kfree(device); + atomic_dec(&card->device_count); } int fw_device_enable_phys_dma(struct fw_device *device) @@ -668,7 +657,8 @@ static void fw_device_init(struct work_struct *work) */ if (read_bus_info_block(device, device->generation) < 0) { - if (device->config_rom_retries < MAX_RETRIES) { + if (device->config_rom_retries < MAX_RETRIES && + atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { device->config_rom_retries++; schedule_delayed_work(&device->work, RETRY_DELAY); } else { @@ -805,7 +795,8 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event) */ device_initialize(&device->device); atomic_set(&device->state, FW_DEVICE_INITIALIZING); - device->card = fw_card_get(card); + atomic_inc(&card->device_count); + device->card = card; device->node = fw_node_get(node); device->node_id = node->node_id; device->generation = card->generation; diff --git a/drivers/firewire/fw-device.h b/drivers/firewire/fw-device.h index 43808c02793..78ecd3991b7 100644 --- a/drivers/firewire/fw-device.h +++ b/drivers/firewire/fw-device.h @@ -76,9 +76,21 @@ fw_device_is_shutdown(struct fw_device *device) return atomic_read(&device->state) == FW_DEVICE_SHUTDOWN; } -struct fw_device *fw_device_get(struct fw_device *device); +static inline struct fw_device * +fw_device_get(struct fw_device *device) +{ + get_device(&device->device); + + return device; +} + +static inline void +fw_device_put(struct fw_device *device) +{ + put_device(&device->device); +} + struct fw_device *fw_device_get_by_devt(dev_t devt); -void fw_device_put(struct fw_device *device); int fw_device_enable_phys_dma(struct fw_device *device); void fw_device_cdev_update(struct fw_device *device); diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index a093ac329db..03069a454c0 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -769,6 +769,7 @@ static void sbp2_release_target(struct kref *kref) struct Scsi_Host *shost = container_of((void *)tgt, struct Scsi_Host, hostdata[0]); struct scsi_device *sdev; + struct fw_device *device = fw_device(tgt->unit->device.parent); /* prevent deadlocks */ sbp2_unblock(tgt); @@ -791,6 +792,7 @@ static void sbp2_release_target(struct kref *kref) put_device(&tgt->unit->device); scsi_host_put(shost); + fw_device_put(device); } static struct workqueue_struct *sbp2_wq; @@ -1088,6 +1090,8 @@ static int sbp2_probe(struct device *dev) if (scsi_add_host(shost, &unit->device) < 0) goto fail_shost_put; + fw_device_get(device); + /* Initialize to values that won't match anything in our table. */ firmware_revision = 0xff000000; model = 0xff000000; diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h index fa7967b5740..09cb7287045 100644 --- a/drivers/firewire/fw-transaction.h +++ b/drivers/firewire/fw-transaction.h @@ -26,6 +26,7 @@ #include #include #include +#include #define TCODE_IS_READ_REQUEST(tcode) (((tcode) & ~1) == 4) #define TCODE_IS_BLOCK_PACKET(tcode) (((tcode) & 1) != 0) @@ -219,6 +220,7 @@ extern struct bus_type fw_bus_type; struct fw_card { const struct fw_card_driver *driver; struct device *device; + atomic_t device_count; struct kref kref; int node_id; -- GitLab From 101fd46a753f8931a05d252bf5564c9415a5f8d7 Mon Sep 17 00:00:00 2001 From: Bob Nelson Date: Wed, 20 Feb 2008 05:00:56 +0100 Subject: [PATCH 259/923] [POWERPC] OProfile: enable callgraph support for Cell This patch enables OProfile callgraph support for the Cell processor. The original code was just calling a function to add the PC value, now it will call a function that first checks the callgraph depth. Callgraph is already enabled on the other Power platforms. Signed-off-by: Bob Nelson Signed-off-by: Arnd Bergmann --- arch/powerpc/oprofile/op_model_cell.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/oprofile/op_model_cell.c b/arch/powerpc/oprofile/op_model_cell.c index 13929771bee..9eed1f68fca 100644 --- a/arch/powerpc/oprofile/op_model_cell.c +++ b/arch/powerpc/oprofile/op_model_cell.c @@ -1151,7 +1151,7 @@ static void cell_handle_interrupt(struct pt_regs *regs, for (i = 0; i < num_counters; ++i) { if ((interrupt_mask & CBE_PM_CTR_OVERFLOW_INTR(i)) && ctr[i].enabled) { - oprofile_add_pc(pc, is_kernel, i); + oprofile_add_ext_sample(pc, regs, i, is_kernel); cbe_write_ctr(cpu, i, reset_value[i]); } } -- GitLab From 9176c0b1f5a9099cebc07458042ae6a7c75af7b2 Mon Sep 17 00:00:00 2001 From: Jens Osterkamp Date: Thu, 28 Feb 2008 11:26:21 +0100 Subject: [PATCH 260/923] [POWERPC] move celleb DABRX definitions This moves the private DABRX definitions for celleb from beat.h to reg.h to make them usable for all. Signed-off-by: Jens Osterkamp Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/celleb/beat.h | 3 --- include/asm-powerpc/reg.h | 3 +++ 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/celleb/beat.h b/arch/powerpc/platforms/celleb/beat.h index b2e292df13c..ac82ac35b99 100644 --- a/arch/powerpc/platforms/celleb/beat.h +++ b/arch/powerpc/platforms/celleb/beat.h @@ -21,9 +21,6 @@ #ifndef _CELLEB_BEAT_H #define _CELLEB_BEAT_H -#define DABRX_KERNEL (1UL<<1) -#define DABRX_USER (1UL<<0) - int64_t beat_get_term_char(uint64_t,uint64_t*,uint64_t*,uint64_t*); int64_t beat_put_term_char(uint64_t,uint64_t,uint64_t,uint64_t); int64_t beat_repository_encode(int, const char *, uint64_t[4]); diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h index 0d6238987df..edc0cfd7f6e 100644 --- a/include/asm-powerpc/reg.h +++ b/include/asm-powerpc/reg.h @@ -153,6 +153,9 @@ #define CTRL_RUNLATCH 0x1 #define SPRN_DABR 0x3F5 /* Data Address Breakpoint Register */ #define DABR_TRANSLATION (1UL << 2) +#define SPRN_DABRX 0x3F7 /* Data Address Breakpoint Register Extension */ +#define DABRX_USER (1UL << 0) +#define DABRX_KERNEL (1UL << 1) #define SPRN_DAR 0x013 /* Data Address Register */ #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ #define DSISR_NOHPTE 0x40000000 /* no translation found */ -- GitLab From f3c1ed9720ec62626bbf3e0c3648568c131978e2 Mon Sep 17 00:00:00 2001 From: Jens Osterkamp Date: Thu, 28 Feb 2008 11:27:31 +0100 Subject: [PATCH 261/923] [POWERPC] enable hardware watchpoints on cell blades Ulrich Weigand has found that the hardware watchpoints on cell were not working back in November : http://ozlabs.org/pipermail/linuxppc-dev/2007-November/046135.html This patch sets them during initialization. Signed-off-by: Jens Osterkamp Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/setup.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index a7f609b3b87..dda34650cb0 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -149,6 +149,11 @@ static void __init cell_init_irq(void) mpic_init_IRQ(); } +static void __init cell_set_dabrx(void) +{ + mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER); +} + static void __init cell_setup_arch(void) { #ifdef CONFIG_SPU_BASE @@ -158,6 +163,8 @@ static void __init cell_setup_arch(void) cbe_regs_init(); + cell_set_dabrx(); + #ifdef CONFIG_CBE_RAS cbe_ras_init(); #endif -- GitLab From f9660e8a6c16e17935777cdee5194842904c2d72 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 29 Feb 2008 18:33:22 +1100 Subject: [PATCH 262/923] [POWERPC] Clearup cell IOMMU fixed mapping terminology It's called the fixed mapping, not the static mapping. Signed-off-by: Michael Ellerman Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/iommu.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index edab631a8dc..bbe83899647 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -549,7 +549,7 @@ static void cell_dma_dev_setup_iommu(struct device *dev) archdata->dma_data = &window->table; } -static void cell_dma_dev_setup_static(struct device *dev); +static void cell_dma_dev_setup_fixed(struct device *dev); static void cell_dma_dev_setup(struct device *dev) { @@ -557,7 +557,7 @@ static void cell_dma_dev_setup(struct device *dev) /* Order is important here, these are not mutually exclusive */ if (get_dma_ops(dev) == &dma_iommu_fixed_ops) - cell_dma_dev_setup_static(dev); + cell_dma_dev_setup_fixed(dev); else if (get_pci_dma_ops() == &dma_iommu_ops) cell_dma_dev_setup_iommu(dev); else if (get_pci_dma_ops() == &dma_direct_ops) @@ -858,7 +858,7 @@ static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask) return 0; } -static void cell_dma_dev_setup_static(struct device *dev) +static void cell_dma_dev_setup_fixed(struct device *dev) { struct dev_archdata *archdata = &dev->archdata; u64 addr; @@ -894,7 +894,7 @@ static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu, for (i = fbase; i < fbase + fsize; i++, uaddr += IOMMU_PAGE_SIZE) { /* Don't touch the dynamic region */ if (i >= dbase && i < (dbase + dsize)) { - pr_debug("iommu: static/dynamic overlap, skipping\n"); + pr_debug("iommu: fixed/dynamic overlap, skipping\n"); continue; } io_pte[i] = base_pte | (__pa(uaddr) & IOPTE_RPN_Mask); -- GitLab From 0d7386ebffd8506b28c37a7d5541132a576f64e2 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 29 Feb 2008 18:33:23 +1100 Subject: [PATCH 263/923] [POWERPC] Use it_offset not pte_offset in cell IOMMU code The cell IOMMU tce build and free routines use pte_offset to convert the index passed from the generic IOMMU code into a page table offset. This takes into account the SPIDER_DMA_OFFSET which sets the top bit of every DMA address. However it doesn't cater for the IOMMU window starting at a non-zero address, as the base of the window is not incorporated into pte_offset at all. As it turns out tbl->it_offset already contains the value we need, it takes into account the base of the window and also pte_offset. So use it instead! Signed-off-by: Michael Ellerman Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/iommu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index bbe83899647..4e75919bf6b 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -200,7 +200,7 @@ static void tce_build_cell(struct iommu_table *tbl, long index, long npages, (window->ioid & IOPTE_IOID_Mask); #endif - io_pte = (unsigned long *)tbl->it_base + (index - window->pte_offset); + io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset); for (i = 0; i < npages; i++, uaddr += IOMMU_PAGE_SIZE) io_pte[i] = base_pte | (__pa(uaddr) & IOPTE_RPN_Mask); @@ -232,7 +232,7 @@ static void tce_free_cell(struct iommu_table *tbl, long index, long npages) | (window->ioid & IOPTE_IOID_Mask); #endif - io_pte = (unsigned long *)tbl->it_base + (index - window->pte_offset); + io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset); for (i = 0; i < npages; i++) io_pte[i] = pte; -- GitLab From 08e024272e529076663e5b4dc8eeecd4131f8a48 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 29 Feb 2008 18:33:23 +1100 Subject: [PATCH 264/923] [POWERPC] Remove unused pte_offset variable The cell IOMMU code no longer needs to save the pte_offset variable separately, it is incorporated into tbl->it_offset. Signed-off-by: Michael Ellerman Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/iommu.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 4e75919bf6b..555d264ad56 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -123,7 +123,6 @@ struct iommu_window { struct cbe_iommu *iommu; unsigned long offset; unsigned long size; - unsigned long pte_offset; unsigned int ioid; struct iommu_table table; }; @@ -475,13 +474,11 @@ cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np, window->size = size; window->ioid = ioid; window->iommu = iommu; - window->pte_offset = pte_offset; window->table.it_blocksize = 16; window->table.it_base = (unsigned long)iommu->ptab; window->table.it_index = iommu->nid; - window->table.it_offset = (offset >> IOMMU_PAGE_SHIFT) + - window->pte_offset; + window->table.it_offset = (offset >> IOMMU_PAGE_SHIFT) + pte_offset; window->table.it_size = size >> IOMMU_PAGE_SHIFT; iommu_init_table(&window->table, iommu->nid); -- GitLab From edf441fb80f9d7a962c298e8da94c8c64802fffa Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 29 Feb 2008 18:33:24 +1100 Subject: [PATCH 265/923] [POWERPC] Move allocation of cell IOMMU pad page There's no need to allocate the pad page unless we're going to actually use it - so move the allocation to where we know we're going to use it. Signed-off-by: Michael Ellerman Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/iommu.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 555d264ad56..8e57e1af378 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -344,12 +344,6 @@ static void cell_iommu_setup_page_tables(struct cbe_iommu *iommu, iommu->ptab = page_address(page); memset(iommu->ptab, 0, ptab_size); - /* allocate a bogus page for the end of each mapping */ - page = alloc_pages_node(iommu->nid, GFP_KERNEL, 0); - BUG_ON(!page); - iommu->pad_page = page_address(page); - clear_page(iommu->pad_page); - /* number of pages needed for a page table */ n_pte_pages = (pages_per_segment * sizeof(unsigned long)) >> IOMMU_PAGE_SHIFT; @@ -463,6 +457,7 @@ cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np, unsigned long pte_offset) { struct iommu_window *window; + struct page *page; u32 ioid; ioid = cell_iommu_get_ioid(np); @@ -501,6 +496,11 @@ cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np, * This code also assumes that we have a window that starts at 0, * which is the case on all spider based blades. */ + page = alloc_pages_node(iommu->nid, GFP_KERNEL, 0); + BUG_ON(!page); + iommu->pad_page = page_address(page); + clear_page(iommu->pad_page); + __set_bit(0, window->table.it_map); tce_build_cell(&window->table, window->table.it_offset, 1, (unsigned long)iommu->pad_page, DMA_TO_DEVICE); -- GitLab From 7d432ff1b7db87e78eb74d42631d2a23ca6f26f2 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 29 Feb 2008 18:33:25 +1100 Subject: [PATCH 266/923] [POWERPC] Split setup of IOMMU stab and ptab, allocate dynamic/fixed ptabs separately Currently the cell IOMMU code allocates the entire IOMMU page table in a contiguous chunk. This is nice and tidy, but for machines with larger amounts of RAM the page table allocation can fail due to it simply being too large. So split the segment table and page table setup routine, and arrange to have the dynamic and fixed page tables allocated separately. Signed-off-by: Michael Ellerman Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/iommu.c | 69 ++++++++++++++++++----------- 1 file changed, 43 insertions(+), 26 deletions(-) diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 8e57e1af378..187a723eafc 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -306,50 +306,54 @@ static int cell_iommu_find_ioc(int nid, unsigned long *base) return -ENODEV; } -static void cell_iommu_setup_page_tables(struct cbe_iommu *iommu, +static void cell_iommu_setup_stab(struct cbe_iommu *iommu, unsigned long dbase, unsigned long dsize, unsigned long fbase, unsigned long fsize) { struct page *page; - int i; - unsigned long reg, segments, pages_per_segment, ptab_size, stab_size, - n_pte_pages, base; - - base = dbase; - if (fsize != 0) - base = min(fbase, dbase); + unsigned long segments, stab_size; segments = max(dbase + dsize, fbase + fsize) >> IO_SEGMENT_SHIFT; - pages_per_segment = 1ull << IO_PAGENO_BITS; - pr_debug("%s: iommu[%d]: segments: %lu, pages per segment: %lu\n", - __FUNCTION__, iommu->nid, segments, pages_per_segment); + pr_debug("%s: iommu[%d]: segments: %lu\n", + __FUNCTION__, iommu->nid, segments); /* set up the segment table */ stab_size = segments * sizeof(unsigned long); page = alloc_pages_node(iommu->nid, GFP_KERNEL, get_order(stab_size)); BUG_ON(!page); iommu->stab = page_address(page); - clear_page(iommu->stab); + memset(iommu->stab, 0, stab_size); +} + +static unsigned long *cell_iommu_alloc_ptab(struct cbe_iommu *iommu, + unsigned long base, unsigned long size, unsigned long gap_base, + unsigned long gap_size) +{ + struct page *page; + int i; + unsigned long reg, segments, pages_per_segment, ptab_size, + n_pte_pages, start_seg, *ptab; + + start_seg = base >> IO_SEGMENT_SHIFT; + segments = size >> IO_SEGMENT_SHIFT; + pages_per_segment = 1ull << IO_PAGENO_BITS; - /* ... and the page tables. Since these are contiguous, we can treat - * the page tables as one array of ptes, like pSeries does. - */ ptab_size = segments * pages_per_segment * sizeof(unsigned long); pr_debug("%s: iommu[%d]: ptab_size: %lu, order: %d\n", __FUNCTION__, iommu->nid, ptab_size, get_order(ptab_size)); page = alloc_pages_node(iommu->nid, GFP_KERNEL, get_order(ptab_size)); BUG_ON(!page); - iommu->ptab = page_address(page); - memset(iommu->ptab, 0, ptab_size); + ptab = page_address(page); + memset(ptab, 0, ptab_size); /* number of pages needed for a page table */ n_pte_pages = (pages_per_segment * sizeof(unsigned long)) >> IOMMU_PAGE_SHIFT; pr_debug("%s: iommu[%d]: stab at %p, ptab at %p, n_pte_pages: %lu\n", - __FUNCTION__, iommu->nid, iommu->stab, iommu->ptab, + __FUNCTION__, iommu->nid, iommu->stab, ptab, n_pte_pages); /* initialise the STEs */ @@ -364,12 +368,21 @@ static void cell_iommu_setup_page_tables(struct cbe_iommu *iommu, __unknown_page_size_error(); } + gap_base = gap_base >> IO_SEGMENT_SHIFT; + gap_size = gap_size >> IO_SEGMENT_SHIFT; + pr_debug("Setting up IOMMU stab:\n"); - for (i = base >> IO_SEGMENT_SHIFT; i < segments; i++) { - iommu->stab[i] = reg | - (__pa(iommu->ptab) + n_pte_pages * IOMMU_PAGE_SIZE * i); + for (i = start_seg; i < (start_seg + segments); i++) { + if (i >= gap_base && i < (gap_base + gap_size)) { + pr_debug("\toverlap at %d, skipping\n", i); + continue; + } + iommu->stab[i] = reg | (__pa(ptab) + n_pte_pages * + IOMMU_PAGE_SIZE * (i - start_seg)); pr_debug("\t[%d] 0x%016lx\n", i, iommu->stab[i]); } + + return ptab; } static void cell_iommu_enable_hardware(struct cbe_iommu *iommu) @@ -416,7 +429,8 @@ static void cell_iommu_enable_hardware(struct cbe_iommu *iommu) static void cell_iommu_setup_hardware(struct cbe_iommu *iommu, unsigned long base, unsigned long size) { - cell_iommu_setup_page_tables(iommu, base, size, 0, 0); + cell_iommu_setup_stab(iommu, base, size, 0, 0); + iommu->ptab = cell_iommu_alloc_ptab(iommu, base, size, 0, 0); cell_iommu_enable_hardware(iommu); } @@ -870,8 +884,10 @@ static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu, struct device_node *np, unsigned long dbase, unsigned long dsize, unsigned long fbase, unsigned long fsize) { - unsigned long base_pte, uaddr, *io_pte; int i; + unsigned long base_pte, uaddr, *io_pte, *ptab; + + ptab = cell_iommu_alloc_ptab(iommu, fbase, fsize, dbase, dsize); dma_iommu_fixed_base = fbase; @@ -883,7 +899,7 @@ static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu, pr_debug("iommu: mapping 0x%lx pages from 0x%lx\n", fsize, fbase); - io_pte = iommu->ptab; + io_pte = ptab; base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M | IOPTE_SO_RW | (cell_iommu_get_ioid(np) & IOPTE_IOID_Mask); @@ -894,7 +910,7 @@ static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu, pr_debug("iommu: fixed/dynamic overlap, skipping\n"); continue; } - io_pte[i] = base_pte | (__pa(uaddr) & IOPTE_RPN_Mask); + io_pte[i - fbase] = base_pte | (__pa(uaddr) & IOPTE_RPN_Mask); } mb(); @@ -992,7 +1008,8 @@ static int __init cell_iommu_fixed_mapping_init(void) "fixed window 0x%lx-0x%lx\n", iommu->nid, dbase, dbase + dsize, fbase, fbase + fsize); - cell_iommu_setup_page_tables(iommu, dbase, dsize, fbase, fsize); + cell_iommu_setup_stab(iommu, dbase, dsize, fbase, fsize); + iommu->ptab = cell_iommu_alloc_ptab(iommu, dbase, dsize, 0, 0); cell_iommu_setup_fixed_ptab(iommu, np, dbase, dsize, fbase, fsize); cell_iommu_enable_hardware(iommu); -- GitLab From 3d3e6da17d6af42a3fd4891fb09d93dca002e590 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 29 Feb 2008 18:33:26 +1100 Subject: [PATCH 267/923] [POWERPC] Cell IOMMU: n_pte_pages is in 4K page units, not IOMMU_PAGE_SIZE We use n_pte_pages to calculate the stride through the page tables, but we also use it to set the NPPT value in the segment table entry. That is defined as the number of 4K pages per segment, so we should calculate it as such regardless of the IOMMU page size. Signed-off-by: Michael Ellerman Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/iommu.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 187a723eafc..7a861cb960d 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -348,9 +348,8 @@ static unsigned long *cell_iommu_alloc_ptab(struct cbe_iommu *iommu, ptab = page_address(page); memset(ptab, 0, ptab_size); - /* number of pages needed for a page table */ - n_pte_pages = (pages_per_segment * - sizeof(unsigned long)) >> IOMMU_PAGE_SHIFT; + /* number of 4K pages needed for a page table */ + n_pte_pages = (pages_per_segment * sizeof(unsigned long)) >> 12; pr_debug("%s: iommu[%d]: stab at %p, ptab at %p, n_pte_pages: %lu\n", __FUNCTION__, iommu->nid, iommu->stab, ptab, @@ -377,8 +376,8 @@ static unsigned long *cell_iommu_alloc_ptab(struct cbe_iommu *iommu, pr_debug("\toverlap at %d, skipping\n", i); continue; } - iommu->stab[i] = reg | (__pa(ptab) + n_pte_pages * - IOMMU_PAGE_SIZE * (i - start_seg)); + iommu->stab[i] = reg | (__pa(ptab) + (n_pte_pages << 12) * + (i - start_seg)); pr_debug("\t[%d] 0x%016lx\n", i, iommu->stab[i]); } -- GitLab From 225d49050f9b6506f2f9df6b40e591ee93939d11 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 29 Feb 2008 18:33:27 +1100 Subject: [PATCH 268/923] [POWERPC] Allow for different IOMMU page sizes in cell IOMMU code Make some preliminary changes to cell_iommu_alloc_ptab() to allow it to take the page size as a parameter rather than assuming IOMMU_PAGE_SIZE. Signed-off-by: Michael Ellerman Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/iommu.c | 31 +++++++++++++++++------------ 1 file changed, 18 insertions(+), 13 deletions(-) diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 7a861cb960d..b0e347e4933 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -113,7 +113,7 @@ /* IOMMU sizing */ #define IO_SEGMENT_SHIFT 28 -#define IO_PAGENO_BITS (IO_SEGMENT_SHIFT - IOMMU_PAGE_SHIFT) +#define IO_PAGENO_BITS(shift) (IO_SEGMENT_SHIFT - (shift)) /* The high bit needs to be set on every DMA address */ #define SPIDER_DMA_OFFSET 0x80000000ul @@ -328,7 +328,7 @@ static void cell_iommu_setup_stab(struct cbe_iommu *iommu, static unsigned long *cell_iommu_alloc_ptab(struct cbe_iommu *iommu, unsigned long base, unsigned long size, unsigned long gap_base, - unsigned long gap_size) + unsigned long gap_size, unsigned long page_shift) { struct page *page; int i; @@ -337,7 +337,10 @@ static unsigned long *cell_iommu_alloc_ptab(struct cbe_iommu *iommu, start_seg = base >> IO_SEGMENT_SHIFT; segments = size >> IO_SEGMENT_SHIFT; - pages_per_segment = 1ull << IO_PAGENO_BITS; + pages_per_segment = 1ull << IO_PAGENO_BITS(page_shift); + /* PTEs for each segment must start on a 4K bounday */ + pages_per_segment = max(pages_per_segment, + (1 << 12) / sizeof(unsigned long)); ptab_size = segments * pages_per_segment * sizeof(unsigned long); pr_debug("%s: iommu[%d]: ptab_size: %lu, order: %d\n", __FUNCTION__, @@ -358,13 +361,12 @@ static unsigned long *cell_iommu_alloc_ptab(struct cbe_iommu *iommu, /* initialise the STEs */ reg = IOSTE_V | ((n_pte_pages - 1) << 5); - if (IOMMU_PAGE_SIZE == 0x1000) - reg |= IOSTE_PS_4K; - else if (IOMMU_PAGE_SIZE == 0x10000) - reg |= IOSTE_PS_64K; - else { - extern void __unknown_page_size_error(void); - __unknown_page_size_error(); + switch (page_shift) { + case 12: reg |= IOSTE_PS_4K; break; + case 16: reg |= IOSTE_PS_64K; break; + case 20: reg |= IOSTE_PS_1M; break; + case 24: reg |= IOSTE_PS_16M; break; + default: BUG(); } gap_base = gap_base >> IO_SEGMENT_SHIFT; @@ -429,7 +431,8 @@ static void cell_iommu_setup_hardware(struct cbe_iommu *iommu, unsigned long base, unsigned long size) { cell_iommu_setup_stab(iommu, base, size, 0, 0); - iommu->ptab = cell_iommu_alloc_ptab(iommu, base, size, 0, 0); + iommu->ptab = cell_iommu_alloc_ptab(iommu, base, size, 0, 0, + IOMMU_PAGE_SHIFT); cell_iommu_enable_hardware(iommu); } @@ -886,7 +889,8 @@ static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu, int i; unsigned long base_pte, uaddr, *io_pte, *ptab; - ptab = cell_iommu_alloc_ptab(iommu, fbase, fsize, dbase, dsize); + ptab = cell_iommu_alloc_ptab(iommu, fbase, fsize, dbase, dsize, + IOMMU_PAGE_SHIFT); dma_iommu_fixed_base = fbase; @@ -1008,7 +1012,8 @@ static int __init cell_iommu_fixed_mapping_init(void) dbase + dsize, fbase, fbase + fsize); cell_iommu_setup_stab(iommu, dbase, dsize, fbase, fsize); - iommu->ptab = cell_iommu_alloc_ptab(iommu, dbase, dsize, 0, 0); + iommu->ptab = cell_iommu_alloc_ptab(iommu, dbase, dsize, 0, 0, + IOMMU_PAGE_SHIFT); cell_iommu_setup_fixed_ptab(iommu, np, dbase, dsize, fbase, fsize); cell_iommu_enable_hardware(iommu); -- GitLab From da40451bba23b51eaca4170a095891646ce72104 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Fri, 29 Feb 2008 18:33:29 +1100 Subject: [PATCH 269/923] [POWERPC] Convert the cell IOMMU fixed mapping to 16M IOMMU pages The only tricky part is we need to adjust the PTE insertion loop to cater for holes in the page table. The PTEs for each segment start on a 4K boundary, so with 16M pages we have 16 PTEs per segment and then a gap to the next 4K page boundary. It might be possible to allocate the PTEs for each segment separately, saving the memory currently filling the gaps. However we'd need to check that's OK with the hardware, and that it actually saves memory. Signed-off-by: Michael Ellerman Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/iommu.c | 37 +++++++++++++++++------------ 1 file changed, 22 insertions(+), 15 deletions(-) diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index b0e347e4933..20ea0e118f2 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -882,38 +882,45 @@ static void cell_dma_dev_setup_fixed(struct device *dev) dev_dbg(dev, "iommu: fixed addr = %lx\n", addr); } +static void insert_16M_pte(unsigned long addr, unsigned long *ptab, + unsigned long base_pte) +{ + unsigned long segment, offset; + + segment = addr >> IO_SEGMENT_SHIFT; + offset = (addr >> 24) - (segment << IO_PAGENO_BITS(24)); + ptab = ptab + (segment * (1 << 12) / sizeof(unsigned long)); + + pr_debug("iommu: addr %lx ptab %p segment %lx offset %lx\n", + addr, ptab, segment, offset); + + ptab[offset] = base_pte | (__pa(addr) & IOPTE_RPN_Mask); +} + static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu, struct device_node *np, unsigned long dbase, unsigned long dsize, unsigned long fbase, unsigned long fsize) { - int i; - unsigned long base_pte, uaddr, *io_pte, *ptab; + unsigned long base_pte, uaddr, ioaddr, *ptab; - ptab = cell_iommu_alloc_ptab(iommu, fbase, fsize, dbase, dsize, - IOMMU_PAGE_SHIFT); + ptab = cell_iommu_alloc_ptab(iommu, fbase, fsize, dbase, dsize, 24); dma_iommu_fixed_base = fbase; - /* convert from bytes into page table indices */ - dbase = dbase >> IOMMU_PAGE_SHIFT; - dsize = dsize >> IOMMU_PAGE_SHIFT; - fbase = fbase >> IOMMU_PAGE_SHIFT; - fsize = fsize >> IOMMU_PAGE_SHIFT; - pr_debug("iommu: mapping 0x%lx pages from 0x%lx\n", fsize, fbase); - io_pte = ptab; base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M | IOPTE_SO_RW | (cell_iommu_get_ioid(np) & IOPTE_IOID_Mask); - uaddr = 0; - for (i = fbase; i < fbase + fsize; i++, uaddr += IOMMU_PAGE_SIZE) { + for (uaddr = 0; uaddr < fsize; uaddr += (1 << 24)) { /* Don't touch the dynamic region */ - if (i >= dbase && i < (dbase + dsize)) { + ioaddr = uaddr + fbase; + if (ioaddr >= dbase && ioaddr < (dbase + dsize)) { pr_debug("iommu: fixed/dynamic overlap, skipping\n"); continue; } - io_pte[i - fbase] = base_pte | (__pa(uaddr) & IOPTE_RPN_Mask); + + insert_16M_pte(uaddr, ptab, base_pte); } mb(); -- GitLab From 334df50a866ff7e234c9566960997ca5b9d0a382 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Mon, 21 Jan 2008 13:09:33 +0100 Subject: [PATCH 270/923] KVM: SVM: Fix lazy FPU switching If the guest writes to cr0 and leaves the TS flag at 0 while vcpu->fpu_active is also 0, the TS flag in the guest's cr0 gets lost. This leads to corrupt FPU state an causes Windows Vista 64bit to crash very soon after boot. This patch fixes this bug. Signed-off-by: Joerg Roedel Signed-off-by: Markus Rechberger Signed-off-by: Avi Kivity --- arch/x86/kvm/svm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index de755cb1431..511628916c4 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -792,6 +792,8 @@ static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) vcpu->arch.cr0 = cr0; cr0 |= X86_CR0_PG | X86_CR0_WP; cr0 &= ~(X86_CR0_CD | X86_CR0_NW); + if (!vcpu->fpu_active) + cr0 |= X86_CR0_TS; svm->vmcb->save.cr0 = cr0; } -- GitLab From 6b390b6392309b98fd116b57c2926c44975cde26 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Tue, 29 Jan 2008 13:01:27 +0100 Subject: [PATCH 271/923] KVM: SVM: set NM intercept when enabling CR0.TS in the guest Explicitly enable the NM intercept in svm_set_cr0 if we enable TS in the guest copy of CR0 for lazy FPU switching. This fixes guest SMP with Linux under SVM. Without that patch Linux deadlocks or panics right after trying to boot the other CPUs. Signed-off-by: Joerg Roedel Signed-off-by: Markus Rechberger Signed-off-by: Avi Kivity --- arch/x86/kvm/svm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 511628916c4..d71daabbb51 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -792,8 +792,10 @@ static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) vcpu->arch.cr0 = cr0; cr0 |= X86_CR0_PG | X86_CR0_WP; cr0 &= ~(X86_CR0_CD | X86_CR0_NW); - if (!vcpu->fpu_active) + if (!vcpu->fpu_active) { + svm->vmcb->control.intercept_exceptions |= (1 << NM_VECTOR); cr0 |= X86_CR0_TS; + } svm->vmcb->save.cr0 = cr0; } -- GitLab From d730616384211436cfc84e6c2c1aa45351706a96 Mon Sep 17 00:00:00 2001 From: Paul Knowles Date: Wed, 6 Feb 2008 11:02:35 +0000 Subject: [PATCH 272/923] KVM: Fix kvm_arch_vcpu_ioctl_set_sregs so that set_cr0 works properly Whilst working on getting a VM to initialize in to IA32e mode I found this issue. set_cr0 relies on comparing the old cr0 to the new one to work correctly. Move the assignment below so the compare can work. Signed-off-by: Paul Knowles Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index cf530814868..ec60409299a 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2861,8 +2861,8 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, kvm_x86_ops->decache_cr4_guest_bits(vcpu); mmu_reset_needed |= vcpu->arch.cr0 != sregs->cr0; - vcpu->arch.cr0 = sregs->cr0; kvm_x86_ops->set_cr0(vcpu, sregs->cr0); + vcpu->arch.cr0 = sregs->cr0; mmu_reset_needed |= vcpu->arch.cr4 != sregs->cr4; kvm_x86_ops->set_cr4(vcpu, sregs->cr4); -- GitLab From 674eea0fc4d1d693250b5d3ddad42ca931c87dfd Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Mon, 11 Feb 2008 18:37:23 +0200 Subject: [PATCH 273/923] KVM: Make the supported cpuid list a host property rather than a vm property One of the use cases for the supported cpuid list is to create a "greatest common denominator" of cpu capabilities in a server farm. As such, it is useful to be able to get the list without creating a virtual machine first. Since the code does not depend on the vm in any way, all that is needed is to move it to the device ioctl handler. The capability identifier is also changed so that binaries made against -rc1 will fail gracefully. Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 42 ++++++++++++++++++++++-------------------- include/linux/kvm.h | 4 ++-- 2 files changed, 24 insertions(+), 22 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ec60409299a..a7069ec2267 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -46,6 +46,9 @@ #define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU +static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid, + struct kvm_cpuid_entry2 __user *entries); + struct kvm_x86_ops *kvm_x86_ops; struct kvm_stats_debugfs_item debugfs_entries[] = { @@ -727,6 +730,24 @@ long kvm_arch_dev_ioctl(struct file *filp, r = 0; break; } + case KVM_GET_SUPPORTED_CPUID: { + struct kvm_cpuid2 __user *cpuid_arg = argp; + struct kvm_cpuid2 cpuid; + + r = -EFAULT; + if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid)) + goto out; + r = kvm_dev_ioctl_get_supported_cpuid(&cpuid, + cpuid_arg->entries); + if (r) + goto out; + + r = -EFAULT; + if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid)) + goto out; + r = 0; + break; + } default: r = -EINVAL; } @@ -974,8 +995,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, put_cpu(); } -static int kvm_vm_ioctl_get_supported_cpuid(struct kvm *kvm, - struct kvm_cpuid2 *cpuid, +static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid, struct kvm_cpuid_entry2 __user *entries) { struct kvm_cpuid_entry2 *cpuid_entries; @@ -1487,24 +1507,6 @@ long kvm_arch_vm_ioctl(struct file *filp, r = 0; break; } - case KVM_GET_SUPPORTED_CPUID: { - struct kvm_cpuid2 __user *cpuid_arg = argp; - struct kvm_cpuid2 cpuid; - - r = -EFAULT; - if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid)) - goto out; - r = kvm_vm_ioctl_get_supported_cpuid(kvm, &cpuid, - cpuid_arg->entries); - if (r) - goto out; - - r = -EFAULT; - if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid)) - goto out; - r = 0; - break; - } default: ; } diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 4de4fd2d860..c1ec04fd000 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -221,6 +221,7 @@ struct kvm_vapic_addr { * Get size for mmap(vcpu_fd) */ #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */ +#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2) /* * Extension capability list. @@ -230,8 +231,8 @@ struct kvm_vapic_addr { #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2 #define KVM_CAP_USER_MEMORY 3 #define KVM_CAP_SET_TSS_ADDR 4 -#define KVM_CAP_EXT_CPUID 5 #define KVM_CAP_VAPIC 6 +#define KVM_CAP_EXT_CPUID 7 /* * ioctls for VM fds @@ -249,7 +250,6 @@ struct kvm_vapic_addr { #define KVM_CREATE_VCPU _IO(KVMIO, 0x41) #define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log) #define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias) -#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x48, struct kvm_cpuid2) /* Device model IOC */ #define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60) #define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level) -- GitLab From c7ac679c160db864810920df61a6ed14275011aa Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Mon, 11 Feb 2008 20:28:27 +0100 Subject: [PATCH 274/923] KVM: emulate access to MSR_IA32_MCG_CTL Injecting an GP when accessing this MSR lets Windows crash when running some stress test tools in KVM. So this patch emulates access to this MSR. Signed-off-by: Joerg Roedel Signed-off-by: Markus Rechberger Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index a7069ec2267..338764fa539 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -487,6 +487,10 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) pr_unimpl(vcpu, "%s: MSR_IA32_MCG_STATUS 0x%llx, nop\n", __FUNCTION__, data); break; + case MSR_IA32_MCG_CTL: + pr_unimpl(vcpu, "%s: MSR_IA32_MCG_CTL 0x%llx, nop\n", + __FUNCTION__, data); + break; case MSR_IA32_UCODE_REV: case MSR_IA32_UCODE_WRITE: case 0x200 ... 0x2ff: /* MTRRs */ @@ -529,6 +533,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_IA32_MC0_CTL: case MSR_IA32_MCG_STATUS: case MSR_IA32_MCG_CAP: + case MSR_IA32_MCG_CTL: case MSR_IA32_MC0_MISC: case MSR_IA32_MC0_MISC+4: case MSR_IA32_MC0_MISC+8: -- GitLab From 9b5cf48b06a52c04b85c88642c3b620db8e1d592 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 3 Mar 2008 01:17:37 +0100 Subject: [PATCH 275/923] x86: revert "x86: CPA: avoid split of alias mappings" Revert: commit 8be8f54bae3453588011cad06363813a5293af53 Author: Thomas Gleixner Date: Sat Feb 23 20:43:21 2008 +0100 x86: CPA: avoid split of alias mappings because it clearly mishandles the case when __change_page_attr(), called from __change_page_attr_set_clr(), changes cpa->processed to 1 and cpa_process_alias(cpa) is executed right after that. This crashes my x86-64 test box early in the boot process (ref. http://bugzilla.kernel.org/show_bug.cgi?id=10140#c4). Signed-off-by: Rafael J. Wysocki Acked-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86/mm/pageattr.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 7049294fb46..14e48b5a94b 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -26,7 +26,6 @@ struct cpa_data { pgprot_t mask_set; pgprot_t mask_clr; int numpages; - int processed; int flushtlb; unsigned long pfn; }; @@ -291,8 +290,8 @@ try_preserve_large_page(pte_t *kpte, unsigned long address, */ nextpage_addr = (address + psize) & pmask; numpages = (nextpage_addr - address) >> PAGE_SHIFT; - if (numpages < cpa->processed) - cpa->processed = numpages; + if (numpages < cpa->numpages) + cpa->numpages = numpages; /* * We are safe now. Check whether the new pgprot is the same: @@ -319,7 +318,7 @@ try_preserve_large_page(pte_t *kpte, unsigned long address, */ addr = address + PAGE_SIZE; pfn++; - for (i = 1; i < cpa->processed; i++, addr += PAGE_SIZE, pfn++) { + for (i = 1; i < cpa->numpages; i++, addr += PAGE_SIZE, pfn++) { pgprot_t chk_prot = static_protections(new_prot, addr, pfn); if (pgprot_val(chk_prot) != pgprot_val(new_prot)) @@ -343,7 +342,7 @@ try_preserve_large_page(pte_t *kpte, unsigned long address, * that we limited the number of possible pages already to * the number of pages in the large page. */ - if (address == (nextpage_addr - psize) && cpa->processed == numpages) { + if (address == (nextpage_addr - psize) && cpa->numpages == numpages) { /* * The address is aligned and the number of pages * covers the full page. @@ -573,7 +572,7 @@ repeat: set_pte_atomic(kpte, new_pte); cpa->flushtlb = 1; } - cpa->processed = 1; + cpa->numpages = 1; return 0; } @@ -584,7 +583,7 @@ repeat: do_split = try_preserve_large_page(kpte, address, cpa); /* * When the range fits into the existing large page, - * return. cp->processed and cpa->tlbflush have been updated in + * return. cp->numpages and cpa->tlbflush have been updated in * try_large_page: */ if (do_split <= 0) @@ -663,7 +662,7 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias) * Store the remaining nr of pages for the large page * preservation check. */ - cpa->numpages = cpa->processed = numpages; + cpa->numpages = numpages; ret = __change_page_attr(cpa, checkalias); if (ret) @@ -680,9 +679,9 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias) * CPA operation. Either a large page has been * preserved or a single page update happened. */ - BUG_ON(cpa->processed > numpages); - numpages -= cpa->processed; - cpa->vaddr += cpa->processed * PAGE_SIZE; + BUG_ON(cpa->numpages > numpages); + numpages -= cpa->numpages; + cpa->vaddr += cpa->numpages * PAGE_SIZE; } return 0; } -- GitLab From 902955fc13259dcec1321d45251a477977fcba39 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 3 Mar 2008 13:53:58 +0100 Subject: [PATCH 276/923] x86: revert "x86: fix pmd_bad and pud_bad to support huge pages" revert commit cded932b75ab0a5f9181ee3da34a0a488d1a14fd, "x86: fix pmd_bad and pud_bad to support huge pages", it causes a bootup hang, as reported and bisected by Arjan van de Ven. Bisected-by: Arjan van de Ven Signed-off-by: Ingo Molnar --- include/asm-x86/pgtable_32.h | 4 +--- include/asm-x86/pgtable_64.h | 6 ++---- 2 files changed, 3 insertions(+), 7 deletions(-) diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index b478efa971e..a842c7222b1 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -91,9 +91,7 @@ extern unsigned long pg0[]; /* To avoid harmful races, pmd_none(x) should check only the lower when PAE */ #define pmd_none(x) (!(unsigned long)pmd_val(x)) #define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) -#define pmd_bad(x) ((pmd_val(x) \ - & ~(PAGE_MASK | _PAGE_USER | _PAGE_PSE | _PAGE_NX)) \ - != _KERNPG_TABLE) +#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h index 0a9258333cb..0a0b77bc736 100644 --- a/include/asm-x86/pgtable_64.h +++ b/include/asm-x86/pgtable_64.h @@ -153,14 +153,12 @@ static inline unsigned long pgd_bad(pgd_t pgd) static inline unsigned long pud_bad(pud_t pud) { - return pud_val(pud) & - ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER | _PAGE_PSE | _PAGE_NX); + return pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER); } static inline unsigned long pmd_bad(pmd_t pmd) { - return pmd_val(pmd) & - ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER | _PAGE_PSE | _PAGE_NX); + return pmd_val(pmd) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER); } #define pte_none(x) (!pte_val(x)) -- GitLab From a345b4ba2086bacc63884e5d72268415a97bcbff Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 3 Mar 2008 10:02:44 -0800 Subject: [PATCH 277/923] Revert "x86: fix pmd_bad and pud_bad to support huge pages" This reverts commit cded932b75ab0a5f9181ee3da34a0a488d1a14fd. Arjan bisected down a boot-time hang to this, saying: ".. it prevents the kernel to finish booting on my (Penryn based) laptop. The boot stops right after freeing the init memory." and while it's not clear exactly what triggers it, at this stage we're better off just reverting it while Ingo tries to figure out what went wrong. Requested-by: Arjan van de Ven Cc: Hans Rosenfeld Cc: Nish Aravamudan Acked-by: Ingo Molnar Signed-off-by: Linus Torvalds --- include/asm-x86/pgtable_32.h | 4 +--- include/asm-x86/pgtable_64.h | 6 ++---- 2 files changed, 3 insertions(+), 7 deletions(-) diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index b478efa971e..a842c7222b1 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -91,9 +91,7 @@ extern unsigned long pg0[]; /* To avoid harmful races, pmd_none(x) should check only the lower when PAE */ #define pmd_none(x) (!(unsigned long)pmd_val(x)) #define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) -#define pmd_bad(x) ((pmd_val(x) \ - & ~(PAGE_MASK | _PAGE_USER | _PAGE_PSE | _PAGE_NX)) \ - != _KERNPG_TABLE) +#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h index 0a9258333cb..0a0b77bc736 100644 --- a/include/asm-x86/pgtable_64.h +++ b/include/asm-x86/pgtable_64.h @@ -153,14 +153,12 @@ static inline unsigned long pgd_bad(pgd_t pgd) static inline unsigned long pud_bad(pud_t pud) { - return pud_val(pud) & - ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER | _PAGE_PSE | _PAGE_NX); + return pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER); } static inline unsigned long pmd_bad(pmd_t pmd) { - return pmd_val(pmd) & - ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER | _PAGE_PSE | _PAGE_NX); + return pmd_val(pmd) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER); } #define pte_none(x) (!pte_val(x)) -- GitLab From a64e715fc74b1a7dcc5944f848acc38b2c4d4ee2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 3 Mar 2008 10:12:14 -0800 Subject: [PATCH 278/923] Allow ARG_MAX execve string space even with a small stack limit The new code that removed the limitation on the execve string size (which was historically 32 pages) replaced it with a much softer limit based on RLIMIT_STACK which is usually much larger than the traditional limit. See commit b6a2fea39318e43fee84fa7b0b90d68bed92d2ba ("mm: variable length argument support") for details. However, if you have a small stack limit (perhaps because you need lots of stacks in a threaded environment), the new heuristic of allowing up to 1/4th of RLIMIT_STACK to be used for argument and environment strings could actually be smaller than the old limit. So just say that it's ok to have up to ARG_MAX strings regardless of the value of RLIMIT_STACK, and check the rlimit only when going over that traditional limit. (Of course, if you actually have a *really* small stack limit, the whole stack itself will be limited before you hit ARG_MAX, but that has always been true and is clearly the right behaviour anyway). Acked-by: Carlos O'Donell Cc: Michael Kerrisk Cc: Peter Zijlstra Cc: Ollie Wild Signed-off-by: Linus Torvalds --- fs/exec.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/exec.c b/fs/exec.c index a44b142fb46..54a0a557b67 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -173,8 +173,15 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, return NULL; if (write) { - struct rlimit *rlim = current->signal->rlim; unsigned long size = bprm->vma->vm_end - bprm->vma->vm_start; + struct rlimit *rlim; + + /* + * We've historically supported up to 32 pages (ARG_MAX) + * of argument strings even with small stacks + */ + if (size <= ARG_MAX) + return page; /* * Limit to 1/4-th the stack size for the argv+env strings. @@ -183,6 +190,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, * - the program will have a reasonable amount of stack left * to work from. */ + rlim = current->signal->rlim; if (size > rlim[RLIMIT_STACK].rlim_cur / 4) { put_page(page); return NULL; -- GitLab From 78a4a50a86b0a54f7ecbc164267b6c762760254c Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 29 Feb 2008 22:02:31 -0800 Subject: [PATCH 279/923] docbook: fix filesystems.tmpl source files Fix docbook problems in filesystems.tmpl. These cause the generated docbook to be incorrect. Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- fs/buffer.c | 3 +-- fs/jbd/transaction.c | 17 +++++++++-------- fs/mpage.c | 11 +++-------- 3 files changed, 13 insertions(+), 18 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index 3ebccf4aa7e..897cd7477b3 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -627,8 +627,7 @@ repeat: } /** - * sync_mapping_buffers - write out and wait upon a mapping's "associated" - * buffers + * sync_mapping_buffers - write out & wait upon a mapping's "associated" buffers * @mapping: the mapping which wants those buffers written * * Starts I/O against the buffers at mapping->private_list, and waits upon diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c index 038ed743619..c6cbb6cd59b 100644 --- a/fs/jbd/transaction.c +++ b/fs/jbd/transaction.c @@ -369,7 +369,7 @@ out: /** - * int journal_restart() - restart a handle . + * int journal_restart() - restart a handle. * @handle: handle to restart * @nblocks: nr credits requested * @@ -844,8 +844,7 @@ out: } /** - * int journal_get_undo_access() - Notify intent to modify metadata with - * non-rewindable consequences + * int journal_get_undo_access() - Notify intent to modify metadata with non-rewindable consequences * @handle: transaction * @bh: buffer to undo * @credits: store the number of taken credits here (if not NULL) @@ -921,12 +920,14 @@ out: } /** - * int journal_dirty_data() - mark a buffer as containing dirty data which - * needs to be flushed before we can commit the - * current transaction. + * int journal_dirty_data() - mark a buffer as containing dirty data to be flushed * @handle: transaction * @bh: bufferhead to mark * + * Description: + * Mark a buffer as containing dirty data which needs to be flushed before + * we can commit the current transaction. + * * The buffer is placed on the transaction's data list and is marked as * belonging to the transaction. * @@ -1098,11 +1099,11 @@ no_journal: } /** - * int journal_dirty_metadata() - mark a buffer as containing dirty metadata + * int journal_dirty_metadata() - mark a buffer as containing dirty metadata * @handle: transaction to add buffer to. * @bh: buffer to mark * - * mark dirty metadata which needs to be journaled as part of the current + * Mark dirty metadata which needs to be journaled as part of the current * transaction. * * The buffer is placed on the transaction's metadata list and is marked diff --git a/fs/mpage.c b/fs/mpage.c index 5df564366f3..235e4d3873a 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -325,16 +325,12 @@ confused: } /** - * mpage_readpages - populate an address space with some pages, and - * start reads against them. - * + * mpage_readpages - populate an address space with some pages & start reads against them * @mapping: the address_space * @pages: The address of a list_head which contains the target pages. These * pages have their ->index populated and are otherwise uninitialised. - * * The page at @pages->prev has the lowest file offset, and reads should be * issued in @pages->prev to @pages->next order. - * * @nr_pages: The number of pages at *@pages * @get_block: The filesystem's block mapper function. * @@ -360,6 +356,7 @@ confused: * So an mpage read of the first 16 blocks of an ext2 file will cause I/O to be * submitted in the following order: * 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 + * * because the indirect block has to be read to get the mappings of blocks * 13,14,15,16. Obviously, this impacts performance. * @@ -656,9 +653,7 @@ out: } /** - * mpage_writepages - walk the list of dirty pages of the given - * address space and writepage() all of them. - * + * mpage_writepages - walk the list of dirty pages of the given address space & writepage() all of them * @mapping: address space structure to write * @wbc: subtract the number of written pages from *@wbc->nr_to_write * @get_block: the filesystem's block mapper function. -- GitLab From 7b089c8b90e6caedda889334bba5c72a152b79c6 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 29 Feb 2008 22:02:40 -0800 Subject: [PATCH 280/923] docbook: fix rapidio source files Fix docbook problems in rapidio source files. These cause the generated docbook to be incorrect. Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- drivers/rapidio/rio-driver.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/rapidio/rio-driver.c b/drivers/rapidio/rio-driver.c index 5480119ff9d..3ce9f3defc1 100644 --- a/drivers/rapidio/rio-driver.c +++ b/drivers/rapidio/rio-driver.c @@ -78,8 +78,7 @@ void rio_dev_put(struct rio_dev *rdev) } /** - * rio_device_probe - Tell if a RIO device structure has a matching RIO - * device id structure + * rio_device_probe - Tell if a RIO device structure has a matching RIO device id structure * @id: the RIO device id structure to match against * @dev: the RIO device structure to match against * @@ -137,7 +136,7 @@ static int rio_device_remove(struct device *dev) * rio_register_driver - register a new RIO driver * @rdrv: the RIO driver structure to register * - * Adds a &struct rio_driver to the list of registered drivers + * Adds a &struct rio_driver to the list of registered drivers. * Returns a negative value on error, otherwise 0. If no error * occurred, the driver remains registered even if no device * was claimed during registration. @@ -167,8 +166,7 @@ void rio_unregister_driver(struct rio_driver *rdrv) } /** - * rio_match_bus - Tell if a RIO device structure has a matching RIO - * driver device id structure + * rio_match_bus - Tell if a RIO device structure has a matching RIO driver device id structure * @dev: the standard device structure to match against * @drv: the standard driver structure containing the ids to match against * -- GitLab From e59e4a09729b06a131de9042b2a5b05b7ad26174 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 29 Feb 2008 22:02:50 -0800 Subject: [PATCH 281/923] docbook: fix scsi source file Fix docbook problem in SCSI source files. These cause the generated docbook to be incorrect. Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- drivers/scsi/scsi_scan.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 1dc165ad17f..e67c14e31ba 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1577,8 +1577,7 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel, } /** - * scsi_scan_target - scan a target id, possibly including all LUNs on the - * target. + * scsi_scan_target - scan a target id, possibly including all LUNs on the target. * @parent: host to scan * @channel: channel to scan * @id: target id to scan -- GitLab From d0bcabcd72dda5f553322a1ca92ae31c15b408b6 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 29 Feb 2008 22:03:07 -0800 Subject: [PATCH 282/923] docbook: fix usb source files Fix docbook problems in USB source files. These cause the generated docbook to be incorrect. Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- drivers/usb/core/usb.c | 6 ++---- include/linux/usb.h | 9 +++------ 2 files changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 4e984060c98..f6f19908f5f 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -99,8 +99,7 @@ struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev, EXPORT_SYMBOL_GPL(usb_ifnum_to_if); /** - * usb_altnum_to_altsetting - get the altsetting structure with a given - * alternate setting number. + * usb_altnum_to_altsetting - get the altsetting structure with a given alternate setting number. * @intf: the interface containing the altsetting in question * @altnum: the desired alternate setting number * @@ -442,8 +441,7 @@ EXPORT_SYMBOL_GPL(usb_put_intf); */ /** - * usb_lock_device_for_reset - cautiously acquire the lock for a - * usb device structure + * usb_lock_device_for_reset - cautiously acquire the lock for a usb device structure * @udev: device that's being locked * @iface: interface bound to the driver making the request (optional) * diff --git a/include/linux/usb.h b/include/linux/usb.h index 2372e2e6b52..5bd3ae8aaaf 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -781,8 +781,7 @@ static inline int usb_endpoint_is_isoc_out( .idVendor = (vend), \ .idProduct = (prod) /** - * USB_DEVICE_VER - macro used to describe a specific usb device with a - * version range + * USB_DEVICE_VER - describe a specific usb device with a version range * @vend: the 16 bit USB Vendor ID * @prod: the 16 bit USB Product ID * @lo: the bcdDevice_lo value @@ -799,8 +798,7 @@ static inline int usb_endpoint_is_isoc_out( .bcdDevice_hi = (hi) /** - * USB_DEVICE_INTERFACE_PROTOCOL - macro used to describe a usb - * device with a specific interface protocol + * USB_DEVICE_INTERFACE_PROTOCOL - describe a usb device with a specific interface protocol * @vend: the 16 bit USB Vendor ID * @prod: the 16 bit USB Product ID * @pr: bInterfaceProtocol value @@ -846,8 +844,7 @@ static inline int usb_endpoint_is_isoc_out( .bInterfaceProtocol = (pr) /** - * USB_DEVICE_AND_INTERFACE_INFO - macro used to describe a specific usb device - * with a class of usb interfaces + * USB_DEVICE_AND_INTERFACE_INFO - describe a specific usb device with a class of usb interfaces * @vend: the 16 bit USB Vendor ID * @prod: the 16 bit USB Product ID * @cl: bInterfaceClass value -- GitLab From 0643245f595dc175c14245fa1e1e9efda3e12f2a Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 29 Feb 2008 22:03:15 -0800 Subject: [PATCH 283/923] docbook: fix kernel-api source files Fix docbook problems in kernel-api.tmpl. These cause the generated docbook to be incorrect. Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- drivers/base/transport_class.c | 4 +--- drivers/pci/rom.c | 3 +-- mm/truncate.c | 3 +-- 3 files changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/base/transport_class.c b/drivers/base/transport_class.c index f25e7c6b2d2..40bca48abc1 100644 --- a/drivers/base/transport_class.c +++ b/drivers/base/transport_class.c @@ -126,9 +126,7 @@ static int transport_setup_classdev(struct attribute_container *cont, } /** - * transport_setup_device - declare a new dev for transport class association - * but don't make it visible yet. - * + * transport_setup_device - declare a new dev for transport class association but don't make it visible yet. * @dev: the generic device representing the entity being added * * Usually, dev represents some component in the HBA system (either diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index a98b2470b9e..bd5c0e03139 100644 --- a/drivers/pci/rom.c +++ b/drivers/pci/rom.c @@ -242,8 +242,7 @@ void pci_remove_rom(struct pci_dev *pdev) #endif /* 0 */ /** - * pci_cleanup_rom - internal routine for freeing the ROM copy created - * by pci_map_rom_copy called from remove.c + * pci_cleanup_rom - free the ROM copy created by pci_map_rom_copy * @pdev: pointer to pci device struct * * Free the copied ROM if we allocated one. diff --git a/mm/truncate.c b/mm/truncate.c index c35c49e54fb..7d20ce41ecf 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -134,8 +134,7 @@ invalidate_complete_page(struct address_space *mapping, struct page *page) } /** - * truncate_inode_pages - truncate range of pages specified by start and - * end byte offsets + * truncate_inode_pages - truncate range of pages specified by start & end byte offsets * @mapping: mapping to truncate * @lstart: offset from which to truncate * @lend: offset to which to truncate -- GitLab From 7105a387a8ac9b512b900efd5ff7a97acc44fb39 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 29 Feb 2008 22:03:27 -0800 Subject: [PATCH 284/923] docbook: fix fusion source files Fix docbook problems in fusion source files. These cause the generated docbook to be incorrect. Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- drivers/message/fusion/mptbase.c | 25 +++++++++++++------------ drivers/message/fusion/mptscsih.c | 14 +++++--------- 2 files changed, 18 insertions(+), 21 deletions(-) diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 0c303c84b37..6b6df867958 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -632,8 +632,7 @@ mpt_deregister(u8 cb_idx) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mpt_event_register - Register protocol-specific event callback - * handler. + * mpt_event_register - Register protocol-specific event callback handler. * @cb_idx: previously registered (via mpt_register) callback handle * @ev_cbfunc: callback function * @@ -654,8 +653,7 @@ mpt_event_register(u8 cb_idx, MPT_EVHANDLER ev_cbfunc) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mpt_event_deregister - Deregister protocol-specific event callback - * handler. + * mpt_event_deregister - Deregister protocol-specific event callback handler * @cb_idx: previously registered callback handle * * Each protocol-specific driver should call this routine @@ -765,11 +763,13 @@ mpt_device_driver_deregister(u8 cb_idx) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mpt_get_msg_frame - Obtain a MPT request frame from the pool (of 1024) - * allocated per MPT adapter. + * mpt_get_msg_frame - Obtain an MPT request frame from the pool * @cb_idx: Handle of registered MPT protocol driver * @ioc: Pointer to MPT adapter structure * + * Obtain an MPT request frame from the pool (of 1024) that are + * allocated per MPT adapter. + * * Returns pointer to a MPT request frame or %NULL if none are available * or IOC is not active. */ @@ -834,13 +834,12 @@ mpt_get_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mpt_put_msg_frame - Send a protocol specific MPT request frame - * to a IOC. + * mpt_put_msg_frame - Send a protocol-specific MPT request frame to an IOC * @cb_idx: Handle of registered MPT protocol driver * @ioc: Pointer to MPT adapter structure * @mf: Pointer to MPT request frame * - * This routine posts a MPT request frame to the request post FIFO of a + * This routine posts an MPT request frame to the request post FIFO of a * specific MPT adapter. */ void @@ -868,13 +867,15 @@ mpt_put_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf) } /** - * mpt_put_msg_frame_hi_pri - Send a protocol specific MPT request frame - * to a IOC using hi priority request queue. + * mpt_put_msg_frame_hi_pri - Send a hi-pri protocol-specific MPT request frame * @cb_idx: Handle of registered MPT protocol driver * @ioc: Pointer to MPT adapter structure * @mf: Pointer to MPT request frame * - * This routine posts a MPT request frame to the request post FIFO of a + * Send a protocol-specific MPT request frame to an IOC using + * hi-priority request queue. + * + * This routine posts an MPT request frame to the request post FIFO of a * specific MPT adapter. **/ void diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index af1de0ccee2..0c252f60c4c 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -1533,7 +1533,7 @@ mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx) * * Remark: Currently invoked from a non-interrupt thread (_bh). * - * Remark: With old EH code, at most 1 SCSI TaskMgmt function per IOC + * Note: With old EH code, at most 1 SCSI TaskMgmt function per IOC * will be active. * * Returns 0 for SUCCESS, or %FAILED. @@ -2537,14 +2537,12 @@ mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR /** * mptscsih_get_scsi_lookup - * - * retrieves scmd entry from ScsiLookup[] array list - * * @ioc: Pointer to MPT_ADAPTER structure * @i: index into the array * - * Returns the scsi_cmd pointer + * retrieves scmd entry from ScsiLookup[] array list * + * Returns the scsi_cmd pointer **/ static struct scsi_cmnd * mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) @@ -2561,14 +2559,12 @@ mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) /** * mptscsih_getclear_scsi_lookup - * - * retrieves and clears scmd entry from ScsiLookup[] array list - * * @ioc: Pointer to MPT_ADAPTER structure * @i: index into the array * - * Returns the scsi_cmd pointer + * retrieves and clears scmd entry from ScsiLookup[] array list * + * Returns the scsi_cmd pointer **/ static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i) -- GitLab From 67768f675ffa587d6081ed1d259e796823023926 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Mon, 25 Feb 2008 14:23:45 +0100 Subject: [PATCH 285/923] [SCSI] ps3rom: fix wrong resid calculation bug sg driver rounds up the length in struct scatterlist to be a multiple of 512 in some conditions. So LLDs can't use the data length in a sg list to calculate residual. Instead, the length in struct scsi_cmnd should be used. [Geert: the variable buflen already contains scsi_bufflen(cmd)] Signed-off-by: FUJITA Tomonori Signed-off-by: Geert Uytterhoeven Signed-off-by: James Bottomley --- drivers/scsi/ps3rom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ps3rom.c b/drivers/scsi/ps3rom.c index 0cd614a0fa7..e052c8479d5 100644 --- a/drivers/scsi/ps3rom.c +++ b/drivers/scsi/ps3rom.c @@ -124,7 +124,7 @@ static int fill_from_dev_buffer(struct scsi_cmnd *cmd, const void *buf) } req_len += sgpnt->length; } - scsi_set_resid(cmd, req_len - act_len); + scsi_set_resid(cmd, buflen - act_len); return 0; } -- GitLab From 57fd2b6c893ed28ccf1a674699f1ea9d8c556281 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Sun, 17 Feb 2008 23:46:00 +0900 Subject: [PATCH 286/923] [SCSI] ps3rom: disable clustering ps3rom does: scsi_for_each_sg(cmd, sgpnt, scsi_sg_count(cmd), k) { kaddr = kmap_atomic(sg_page(sgpnt), KM_IRQ0); We cannot do something like that with the clustering enabled (or we can use scsi_kmap_atomic_sg). Signed-off-by: FUJITA Tomonori Cc: Geert Uytterhoeven Signed-off-by: James Bottomley --- drivers/scsi/ps3rom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ps3rom.c b/drivers/scsi/ps3rom.c index e052c8479d5..fad6cb5cba2 100644 --- a/drivers/scsi/ps3rom.c +++ b/drivers/scsi/ps3rom.c @@ -427,7 +427,7 @@ static struct scsi_host_template ps3rom_host_template = { .cmd_per_lun = 1, .emulated = 1, /* only sg driver uses this */ .max_sectors = PS3ROM_MAX_SECTORS, - .use_clustering = ENABLE_CLUSTERING, + .use_clustering = DISABLE_CLUSTERING, .module = THIS_MODULE, }; -- GitLab From ba1cb4618b2d7becc62c9fd67287e733a23611bc Mon Sep 17 00:00:00 2001 From: Nick Cheng Date: Wed, 27 Feb 2008 16:22:03 +0800 Subject: [PATCH 287/923] [SCSI] arcmsr: update version and changelog The fix up from Daniel Drake for replacing GFP_DMA with something more sensible has gone in here: commit 69e562c234440fb7410877b5b24f4b29ef8521d1 Author: Daniel Drake Date: Wed Feb 20 13:29:05 2008 +0000 [SCSI] arcmsr: fix message allocation add a change log and update the version for this. Signed-off-by: Nick Cheng Signed-off-by: James Bottomley --- Documentation/scsi/ChangeLog.arcmsr | 6 ++++++ drivers/scsi/arcmsr/arcmsr.h | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/scsi/ChangeLog.arcmsr b/Documentation/scsi/ChangeLog.arcmsr index de2bcacfa87..038a3e6ecaa 100644 --- a/Documentation/scsi/ChangeLog.arcmsr +++ b/Documentation/scsi/ChangeLog.arcmsr @@ -109,4 +109,10 @@ ** 8.replace pci_alloc_consistent()/pci_free_consistent() with kmalloc()/kfree() in arcmsr_iop_message_xfer() ** 9. fix the release of dma memory for type B in arcmsr_free_ccb_pool() ** 10.fix the arcmsr_polling_hbb_ccbdone() +** 1.20.00.15 02/27/2008 Erich Chen & Nick Cheng +** 1.arcmsr_iop_message_xfer() is called from atomic context under the +** queuecommand scsi_host_template handler. James Bottomley pointed out +** that the current GFP_KERNEL|GFP_DMA flags are wrong: firstly we are in +** atomic context, secondly this memory is not used for DMA. +** Also removed some unneeded casts. Thanks to Daniel Drake ************************************************************************** diff --git a/drivers/scsi/arcmsr/arcmsr.h b/drivers/scsi/arcmsr/arcmsr.h index 57786502e3e..0393707bdfc 100644 --- a/drivers/scsi/arcmsr/arcmsr.h +++ b/drivers/scsi/arcmsr/arcmsr.h @@ -48,7 +48,7 @@ struct class_device_attribute; /*The limit of outstanding scsi command that firmware can handle*/ #define ARCMSR_MAX_OUTSTANDING_CMD 256 #define ARCMSR_MAX_FREECCB_NUM 320 -#define ARCMSR_DRIVER_VERSION "Driver Version 1.20.00.15 2007/12/24" +#define ARCMSR_DRIVER_VERSION "Driver Version 1.20.00.15 2008/02/27" #define ARCMSR_SCSI_INITIATOR_ID 255 #define ARCMSR_MAX_XFER_SECTORS 512 #define ARCMSR_MAX_XFER_SECTORS_B 4096 -- GitLab From 7c7f1f299b7f21f1f5fd4fa3da6b626406109f30 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 28 Feb 2008 14:06:09 -0800 Subject: [PATCH 288/923] [SCSI] qla2xxx: Correct needless clean-up resets during shutdown. There's no point in hitting the RISC with what will most assuredly be an unsucessful reset of the RISC hardware if the initial stop-firmware mailbox command fails with a time-out status. Instead, to avoid what could amount to a lengthy stop-firmware/detect-failure/reset-risc loop, continue with driver unloading and discard the stop-firmware requirement. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_init.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index d5c7853e7eb..4897663f3c2 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -4022,7 +4022,8 @@ qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha) return; ret = qla2x00_stop_firmware(ha); - for (retries = 5; ret != QLA_SUCCESS && retries ; retries--) { + for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT && + retries ; retries--) { qla2x00_reset_chip(ha); if (qla2x00_chip_diag(ha) != QLA_SUCCESS) continue; -- GitLab From 3e8ce320cfc6cc10a7b99d8d6508d00bde20fdb7 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 28 Feb 2008 14:06:10 -0800 Subject: [PATCH 289/923] [SCSI] qla2xxx: Correct discrepancies during OVERRUN handling on FWI2-capable cards. For recent ISPs, software must detect OVERRUN conditions by checking the SS_RESIDUAL_OVER bit during CS_COMPLETE handling. Update the driver to perform this check, which is consistent with what earlier firmwares did by explicitly cracking open the FCP_RSP statuses and returning an CS_DATA_OVERRUN. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_isr.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 14e6f22944b..f0337036c7b 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -958,6 +958,11 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) } } + /* Check for overrun. */ + if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && + scsi_status & SS_RESIDUAL_OVER) + comp_status = CS_DATA_OVERRUN; + /* * Based on Host and scsi status generate status code for Linux */ -- GitLab From 00a537b8204c7360852379b4d56adbeedecc9bb9 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 28 Feb 2008 14:06:11 -0800 Subject: [PATCH 290/923] [SCSI] qla2xxx: Correct usage of inconsistent timeout values while issuing ELS commands. The original code would incorrectly hardcode ELS timeout values rather than using the traditional '2 * r_a_tov' value. In some cases, the hardcoded values would be larger than the mailbox-command-timeout and result in a needless BIG_HAMMER (ISP reset), the typical recovery mechanism employed in such cases. The second defect in the original code was in the assignment of the default 'ha->r_a_tov' to twice the traditional value. Correct this by setting the value to 10 seconds. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_gs.c | 10 +++++----- drivers/scsi/qla2xxx/qla_init.c | 8 ++++---- drivers/scsi/qla2xxx/qla_mbx.c | 2 +- 3 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index 6226d88479f..c1808763d40 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -39,7 +39,7 @@ qla2x00_prep_ms_iocb(scsi_qla_host_t *ha, uint32_t req_size, uint32_t rsp_size) ms_pkt->entry_count = 1; SET_TARGET_ID(ha, ms_pkt->loop_id, SIMPLE_NAME_SERVER); ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG); - ms_pkt->timeout = __constant_cpu_to_le16(25); + ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ms_pkt->total_dsd_count = __constant_cpu_to_le16(2); ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size); @@ -75,7 +75,7 @@ qla24xx_prep_ms_iocb(scsi_qla_host_t *ha, uint32_t req_size, uint32_t rsp_size) ct_pkt->entry_type = CT_IOCB_TYPE; ct_pkt->entry_count = 1; ct_pkt->nport_handle = __constant_cpu_to_le16(NPH_SNS); - ct_pkt->timeout = __constant_cpu_to_le16(25); + ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size); @@ -1144,7 +1144,7 @@ qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size, ms_pkt->entry_count = 1; SET_TARGET_ID(ha, ms_pkt->loop_id, ha->mgmt_svr_loop_id); ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG); - ms_pkt->timeout = __constant_cpu_to_le16(59); + ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ms_pkt->total_dsd_count = __constant_cpu_to_le16(2); ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size); @@ -1181,7 +1181,7 @@ qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size, ct_pkt->entry_type = CT_IOCB_TYPE; ct_pkt->entry_count = 1; ct_pkt->nport_handle = cpu_to_le16(ha->mgmt_svr_loop_id); - ct_pkt->timeout = __constant_cpu_to_le16(59); + ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size); @@ -1761,7 +1761,7 @@ qla24xx_prep_ms_fm_iocb(scsi_qla_host_t *ha, uint32_t req_size, ct_pkt->entry_type = CT_IOCB_TYPE; ct_pkt->entry_count = 1; ct_pkt->nport_handle = cpu_to_le16(ha->mgmt_svr_loop_id); - ct_pkt->timeout = __constant_cpu_to_le16(59); + ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size); diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 4897663f3c2..364be7d0687 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1733,8 +1733,8 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) ha->login_timeout = nv->login_timeout; icb->login_timeout = nv->login_timeout; - /* Set minimum RATOV to 200 tenths of a second. */ - ha->r_a_tov = 200; + /* Set minimum RATOV to 100 tenths of a second. */ + ha->r_a_tov = 100; ha->loop_reset_delay = nv->reset_delay; @@ -3645,8 +3645,8 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) ha->login_timeout = le16_to_cpu(nv->login_timeout); icb->login_timeout = cpu_to_le16(nv->login_timeout); - /* Set minimum RATOV to 200 tenths of a second. */ - ha->r_a_tov = 200; + /* Set minimum RATOV to 100 tenths of a second. */ + ha->r_a_tov = 100; ha->loop_reset_delay = nv->reset_delay; diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 99d29fff836..bb103580e1b 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -2206,7 +2206,7 @@ qla24xx_abort_target(fc_port_t *fcport) tsk->p.tsk.entry_type = TSK_MGMT_IOCB_TYPE; tsk->p.tsk.entry_count = 1; tsk->p.tsk.nport_handle = cpu_to_le16(fcport->loop_id); - tsk->p.tsk.timeout = __constant_cpu_to_le16(25); + tsk->p.tsk.timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); tsk->p.tsk.control_flags = __constant_cpu_to_le32(TCF_TARGET_RESET); tsk->p.tsk.port_id[0] = fcport->d_id.b.al_pa; tsk->p.tsk.port_id[1] = fcport->d_id.b.area; -- GitLab From ca3aefb8227aee7ede49a71c26adf8538b889724 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 28 Feb 2008 14:06:12 -0800 Subject: [PATCH 291/923] [SCSI] qla2xxx: Update version number to 8.02.00-k9. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index c5742cc15ab..ea08a129fee 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,7 +7,7 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.02.00-k8" +#define QLA2XXX_VERSION "8.02.00-k9" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 2 -- GitLab From 79f5bb2839c41a007d7ce1a35f58ea14cef6fdb4 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 29 Feb 2008 22:02:50 -0800 Subject: [PATCH 292/923] [SCSI] docbook: fix scsi source file Fix docbook problem in SCSI source files. These cause the generated docbook to be incorrect. Signed-off-by: Randy Dunlap Signed-off-by: James Bottomley --- drivers/scsi/scsi_scan.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 1dc165ad17f..e67c14e31ba 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1577,8 +1577,7 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel, } /** - * scsi_scan_target - scan a target id, possibly including all LUNs on the - * target. + * scsi_scan_target - scan a target id, possibly including all LUNs on the target. * @parent: host to scan * @channel: channel to scan * @id: target id to scan -- GitLab From ab3b0be84c3877dd0cccef38693254b83782bb70 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 29 Feb 2008 22:03:27 -0800 Subject: [PATCH 293/923] [SCSI] docbook: fix fusion source files Fix docbook problems in fusion source files. These cause the generated docbook to be incorrect. Signed-off-by: Randy Dunlap Acked-by: Eric Moore Signed-off-by: James Bottomley --- drivers/message/fusion/mptbase.c | 25 +++++++++++++------------ drivers/message/fusion/mptscsih.c | 14 +++++--------- 2 files changed, 18 insertions(+), 21 deletions(-) diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 0c303c84b37..6b6df867958 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -632,8 +632,7 @@ mpt_deregister(u8 cb_idx) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mpt_event_register - Register protocol-specific event callback - * handler. + * mpt_event_register - Register protocol-specific event callback handler. * @cb_idx: previously registered (via mpt_register) callback handle * @ev_cbfunc: callback function * @@ -654,8 +653,7 @@ mpt_event_register(u8 cb_idx, MPT_EVHANDLER ev_cbfunc) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mpt_event_deregister - Deregister protocol-specific event callback - * handler. + * mpt_event_deregister - Deregister protocol-specific event callback handler * @cb_idx: previously registered callback handle * * Each protocol-specific driver should call this routine @@ -765,11 +763,13 @@ mpt_device_driver_deregister(u8 cb_idx) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mpt_get_msg_frame - Obtain a MPT request frame from the pool (of 1024) - * allocated per MPT adapter. + * mpt_get_msg_frame - Obtain an MPT request frame from the pool * @cb_idx: Handle of registered MPT protocol driver * @ioc: Pointer to MPT adapter structure * + * Obtain an MPT request frame from the pool (of 1024) that are + * allocated per MPT adapter. + * * Returns pointer to a MPT request frame or %NULL if none are available * or IOC is not active. */ @@ -834,13 +834,12 @@ mpt_get_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mpt_put_msg_frame - Send a protocol specific MPT request frame - * to a IOC. + * mpt_put_msg_frame - Send a protocol-specific MPT request frame to an IOC * @cb_idx: Handle of registered MPT protocol driver * @ioc: Pointer to MPT adapter structure * @mf: Pointer to MPT request frame * - * This routine posts a MPT request frame to the request post FIFO of a + * This routine posts an MPT request frame to the request post FIFO of a * specific MPT adapter. */ void @@ -868,13 +867,15 @@ mpt_put_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf) } /** - * mpt_put_msg_frame_hi_pri - Send a protocol specific MPT request frame - * to a IOC using hi priority request queue. + * mpt_put_msg_frame_hi_pri - Send a hi-pri protocol-specific MPT request frame * @cb_idx: Handle of registered MPT protocol driver * @ioc: Pointer to MPT adapter structure * @mf: Pointer to MPT request frame * - * This routine posts a MPT request frame to the request post FIFO of a + * Send a protocol-specific MPT request frame to an IOC using + * hi-priority request queue. + * + * This routine posts an MPT request frame to the request post FIFO of a * specific MPT adapter. **/ void diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index af1de0ccee2..0c252f60c4c 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -1533,7 +1533,7 @@ mptscsih_freeChainBuffers(MPT_ADAPTER *ioc, int req_idx) * * Remark: Currently invoked from a non-interrupt thread (_bh). * - * Remark: With old EH code, at most 1 SCSI TaskMgmt function per IOC + * Note: With old EH code, at most 1 SCSI TaskMgmt function per IOC * will be active. * * Returns 0 for SUCCESS, or %FAILED. @@ -2537,14 +2537,12 @@ mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR /** * mptscsih_get_scsi_lookup - * - * retrieves scmd entry from ScsiLookup[] array list - * * @ioc: Pointer to MPT_ADAPTER structure * @i: index into the array * - * Returns the scsi_cmd pointer + * retrieves scmd entry from ScsiLookup[] array list * + * Returns the scsi_cmd pointer **/ static struct scsi_cmnd * mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) @@ -2561,14 +2559,12 @@ mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i) /** * mptscsih_getclear_scsi_lookup - * - * retrieves and clears scmd entry from ScsiLookup[] array list - * * @ioc: Pointer to MPT_ADAPTER structure * @i: index into the array * - * Returns the scsi_cmd pointer + * retrieves and clears scmd entry from ScsiLookup[] array list * + * Returns the scsi_cmd pointer **/ static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i) -- GitLab From b560665ce5a617aff9c62b94a82340fe11fc0d91 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Sat, 1 Mar 2008 15:36:34 +0900 Subject: [PATCH 294/923] [SCSI] ibmvstgt: set up scsi_host properly before __scsi_alloc_queue Before calling __scsi_alloc_queue, scsi_host->shost_gendev.parent must be initialized properly. This patch moves __scsi_alloc_queue after scsi_add_host (like initiator drivers do). Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvstgt.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvstgt.c b/drivers/scsi/ibmvscsi/ibmvstgt.c index bd62131b97a..429bf53f411 100644 --- a/drivers/scsi/ibmvscsi/ibmvstgt.c +++ b/drivers/scsi/ibmvscsi/ibmvstgt.c @@ -838,9 +838,6 @@ static int ibmvstgt_probe(struct vio_dev *dev, const struct vio_device_id *id) if (!shost) goto free_vport; shost->transportt = ibmvstgt_transport_template; - err = scsi_tgt_alloc_queue(shost); - if (err) - goto put_host; target = host_to_srp_target(shost); target->shost = shost; @@ -872,6 +869,10 @@ static int ibmvstgt_probe(struct vio_dev *dev, const struct vio_device_id *id) if (err) goto destroy_queue; + err = scsi_tgt_alloc_queue(shost); + if (err) + goto destroy_queue; + return 0; destroy_queue: crq_queue_destroy(target); -- GitLab From 36802e99894e9757de2441b4f719c05a29495dc5 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Sat, 1 Mar 2008 15:36:35 +0900 Subject: [PATCH 295/923] [SCSI] tgt: stop zero'ing scsi_cmnd The scsi midlayer allocates scsi_cmnd->sense_buffer dynamically so we can't initialize scsi_cmnd (the midlyaer does for us). Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley --- drivers/scsi/scsi_tgt_lib.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c index 3677fbb30b7..b14251483c3 100644 --- a/drivers/scsi/scsi_tgt_lib.c +++ b/drivers/scsi/scsi_tgt_lib.c @@ -103,7 +103,6 @@ struct scsi_cmnd *scsi_host_get_command(struct Scsi_Host *shost, if (!cmd) goto release_rq; - memset(cmd, 0, sizeof(*cmd)); cmd->sc_data_direction = data_dir; cmd->jiffies_at_alloc = jiffies; cmd->request = rq; -- GitLab From cccddc2d15c32bdb6972aaf98f4c9e3e807833df Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Sat, 1 Mar 2008 15:36:36 +0900 Subject: [PATCH 296/923] [SCSI] tgt: set the data length properly scsi_tgt uses REQ_TYPE_BLOCK_PC so scsi_init_io doesn't set the length for us. scsi_tgt needs to do it by itself. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley --- drivers/scsi/scsi_tgt_lib.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c index b14251483c3..a0f308bd145 100644 --- a/drivers/scsi/scsi_tgt_lib.c +++ b/drivers/scsi/scsi_tgt_lib.c @@ -381,6 +381,11 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd, scsi_release_buffers(cmd); goto unmap_rq; } + /* + * we use REQ_TYPE_BLOCK_PC so scsi_init_io doesn't set the + * length for us. + */ + cmd->sdb.length = rq->data_len; return 0; -- GitLab From 21f1e91d4bb8fa7cd3a59938471fc7c7d27f82da Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Sat, 1 Mar 2008 15:36:37 +0900 Subject: [PATCH 297/923] [SCSI] tgt: fix build errors when dprintk is defined drivers/scsi/ibmvscsi/ibmvstgt.c: In function 'ibmvstgt_cmd_done': drivers/scsi/ibmvscsi/ibmvstgt.c:292: error: 'cmd' undeclared (first use in this function) drivers/scsi/ibmvscsi/ibmvstgt.c:292: error: (Each undeclared identifier is reported only once drivers/scsi/ibmvscsi/ibmvstgt.c:292: error: for each function it appears in.) Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvstgt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ibmvscsi/ibmvstgt.c b/drivers/scsi/ibmvscsi/ibmvstgt.c index 429bf53f411..e5881e92d0f 100644 --- a/drivers/scsi/ibmvscsi/ibmvstgt.c +++ b/drivers/scsi/ibmvscsi/ibmvstgt.c @@ -290,7 +290,7 @@ static int ibmvstgt_cmd_done(struct scsi_cmnd *sc, int err = 0; dprintk("%p %p %x %u\n", iue, target, vio_iu(iue)->srp.cmd.cdb[0], - cmd->usg_sg); + scsi_sg_count(sc)); if (scsi_sg_count(sc)) err = srp_transfer_data(sc, &vio_iu(iue)->srp.cmd, ibmvstgt_rdma, 1, 1); -- GitLab From 74074dec4f365e1b042ad47f75854f06bd771455 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Mon, 3 Mar 2008 11:41:51 -0800 Subject: [PATCH 298/923] sparc: replace remaining __FUNCTION__ occurances __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: David S. Miller --- arch/sparc/kernel/ebus.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c index d850785b208..96344ff2bbe 100644 --- a/arch/sparc/kernel/ebus.c +++ b/arch/sparc/kernel/ebus.c @@ -101,7 +101,7 @@ void __init fill_ebus_child(struct device_node *dp, prom_printf("UGH: property for %s was %d, need < %d\n", dev->prom_node->name, len, dev->parent->num_addrs); - panic(__FUNCTION__); + panic(__func__); } /* XXX resource */ @@ -162,7 +162,7 @@ void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *d prom_printf("UGH: proplen for %s was %d, need multiple of %d\n", dev->prom_node->name, len, (int)sizeof(struct linux_prom_registers)); - panic(__FUNCTION__); + panic(__func__); } dev->num_addrs = len / sizeof(struct linux_prom_registers); @@ -324,7 +324,7 @@ void __init ebus_init(void) regs = of_get_property(dp, "reg", &len); if (!regs) { prom_printf("%s: can't find reg property\n", - __FUNCTION__); + __func__); prom_halt(); } nreg = len / sizeof(struct linux_prom_pci_registers); -- GitLab From 9a4a668240e2f9564d12347c50c3d9c5f1686a85 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Mon, 3 Mar 2008 11:42:17 -0800 Subject: [PATCH 299/923] sparc64: replace remaining __FUNCTION__ occurances __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: David S. Miller --- arch/sparc64/solaris/conv.h | 2 +- arch/sparc64/solaris/timod.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sparc64/solaris/conv.h b/arch/sparc64/solaris/conv.h index 5faf59a9de3..50e58232cf2 100644 --- a/arch/sparc64/solaris/conv.h +++ b/arch/sparc64/solaris/conv.h @@ -28,7 +28,7 @@ extern unsigned sunos_sys_table[]; #define SUNOS(x) ((long)sunos_sys_table[x]) #ifdef DEBUG_SOLARIS -#define SOLD(s) printk("%s,%d,%s(): %s\n",__FILE__,__LINE__,__FUNCTION__,(s)) +#define SOLD(s) printk("%s,%d,%s(): %s\n",__FILE__,__LINE__,__func__,(s)) #define SOLDD(s) printk("solaris: "); printk s #else #define SOLD(s) diff --git a/arch/sparc64/solaris/timod.c b/arch/sparc64/solaris/timod.c index f53123c02c2..15234fcd191 100644 --- a/arch/sparc64/solaris/timod.c +++ b/arch/sparc64/solaris/timod.c @@ -81,7 +81,7 @@ void mykfree(void *p) #define MKCTL_MAGIC 0xDEADBABEBADC0DEDL #define PUT_MAGIC(a,m) do{(*(u64*)(a))=(m);}while(0) #define SCHECK_MAGIC(a,m) do{if((*(u64*)(a))!=(m))printk("%s,%u,%s(): magic %08x at %p corrupted!\n",\ - __FILE__,__LINE__,__FUNCTION__,(m),(a));}while(0) + __FILE__,__LINE__,__func__,(m),(a));}while(0) #define BUF_OFFSET sizeof(u64) #define MKCTL_TRAILER sizeof(u64) -- GitLab From a973e9dd1e140a65bed694a2c5c8d53e9cba1a23 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Sat, 1 Mar 2008 13:40:44 -0800 Subject: [PATCH 300/923] Revert "unique end pointer" patch This only made sense for the alternate fastpath which was reverted last week. Mathieu is working on a new version that addresses the fastpath issues but that new code first needs to go through mm and it is not clear if we need the unique end pointers with his new scheme. Reviewed-by: Pekka Enberg Signed-off-by: Christoph Lameter --- include/linux/mm_types.h | 5 +-- mm/slub.c | 70 +++++++++++++--------------------------- 2 files changed, 24 insertions(+), 51 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index bfee0bd1d43..34023c65d46 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -64,10 +64,7 @@ struct page { #if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS spinlock_t ptl; #endif - struct { - struct kmem_cache *slab; /* SLUB: Pointer to slab */ - void *end; /* SLUB: end marker */ - }; + struct kmem_cache *slab; /* SLUB: Pointer to slab */ struct page *first_page; /* Compound tail pages */ }; union { diff --git a/mm/slub.c b/mm/slub.c index 74c65af0a54..a873953e5a1 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -291,32 +291,15 @@ static inline struct kmem_cache_cpu *get_cpu_slab(struct kmem_cache *s, int cpu) #endif } -/* - * The end pointer in a slab is special. It points to the first object in the - * slab but has bit 0 set to mark it. - * - * Note that SLUB relies on page_mapping returning NULL for pages with bit 0 - * in the mapping set. - */ -static inline int is_end(void *addr) -{ - return (unsigned long)addr & PAGE_MAPPING_ANON; -} - -static void *slab_address(struct page *page) -{ - return page->end - PAGE_MAPPING_ANON; -} - static inline int check_valid_pointer(struct kmem_cache *s, struct page *page, const void *object) { void *base; - if (object == page->end) + if (!object) return 1; - base = slab_address(page); + base = page_address(page); if (object < base || object >= base + s->objects * s->size || (object - base) % s->size) { return 0; @@ -349,8 +332,7 @@ static inline void set_freepointer(struct kmem_cache *s, void *object, void *fp) /* Scan freelist */ #define for_each_free_object(__p, __s, __free) \ - for (__p = (__free); (__p) != page->end; __p = get_freepointer((__s),\ - __p)) + for (__p = (__free); __p; __p = get_freepointer((__s), __p)) /* Determine object index from a given position */ static inline int slab_index(void *p, struct kmem_cache *s, void *addr) @@ -502,7 +484,7 @@ static void slab_fix(struct kmem_cache *s, char *fmt, ...) static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p) { unsigned int off; /* Offset of last byte */ - u8 *addr = slab_address(page); + u8 *addr = page_address(page); print_tracking(s, p); @@ -680,7 +662,7 @@ static int slab_pad_check(struct kmem_cache *s, struct page *page) if (!(s->flags & SLAB_POISON)) return 1; - start = slab_address(page); + start = page_address(page); end = start + (PAGE_SIZE << s->order); length = s->objects * s->size; remainder = end - (start + length); @@ -748,7 +730,7 @@ static int check_object(struct kmem_cache *s, struct page *page, * of the free objects in this slab. May cause * another error because the object count is now wrong. */ - set_freepointer(s, p, page->end); + set_freepointer(s, p, NULL); return 0; } return 1; @@ -782,18 +764,18 @@ static int on_freelist(struct kmem_cache *s, struct page *page, void *search) void *fp = page->freelist; void *object = NULL; - while (fp != page->end && nr <= s->objects) { + while (fp && nr <= s->objects) { if (fp == search) return 1; if (!check_valid_pointer(s, page, fp)) { if (object) { object_err(s, page, object, "Freechain corrupt"); - set_freepointer(s, object, page->end); + set_freepointer(s, object, NULL); break; } else { slab_err(s, page, "Freepointer corrupt"); - page->freelist = page->end; + page->freelist = NULL; page->inuse = s->objects; slab_fix(s, "Freelist cleared"); return 0; @@ -899,7 +881,7 @@ bad: */ slab_fix(s, "Marking all objects used"); page->inuse = s->objects; - page->freelist = page->end; + page->freelist = NULL; } return 0; } @@ -939,7 +921,7 @@ static int free_debug_processing(struct kmem_cache *s, struct page *page, } /* Special debug activities for freeing objects */ - if (!SlabFrozen(page) && page->freelist == page->end) + if (!SlabFrozen(page) && !page->freelist) remove_full(s, page); if (s->flags & SLAB_STORE_USER) set_track(s, object, TRACK_FREE, addr); @@ -1124,7 +1106,6 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node) SetSlabDebug(page); start = page_address(page); - page->end = start + 1; if (unlikely(s->flags & SLAB_POISON)) memset(start, POISON_INUSE, PAGE_SIZE << s->order); @@ -1136,7 +1117,7 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node) last = p; } setup_object(s, page, last); - set_freepointer(s, last, page->end); + set_freepointer(s, last, NULL); page->freelist = start; page->inuse = 0; @@ -1152,7 +1133,7 @@ static void __free_slab(struct kmem_cache *s, struct page *page) void *p; slab_pad_check(s, page); - for_each_object(p, s, slab_address(page)) + for_each_object(p, s, page_address(page)) check_object(s, page, p, 0); ClearSlabDebug(page); } @@ -1162,7 +1143,6 @@ static void __free_slab(struct kmem_cache *s, struct page *page) NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE, -pages); - page->mapping = NULL; __free_pages(page, s->order); } @@ -1366,7 +1346,7 @@ static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail) ClearSlabFrozen(page); if (page->inuse) { - if (page->freelist != page->end) { + if (page->freelist) { add_partial(n, page, tail); stat(c, tail ? DEACTIVATE_TO_TAIL : DEACTIVATE_TO_HEAD); } else { @@ -1410,12 +1390,8 @@ static void deactivate_slab(struct kmem_cache *s, struct kmem_cache_cpu *c) * Merge cpu freelist into freelist. Typically we get here * because both freelists are empty. So this is unlikely * to occur. - * - * We need to use _is_end here because deactivate slab may - * be called for a debug slab. Then c->freelist may contain - * a dummy pointer. */ - while (unlikely(!is_end(c->freelist))) { + while (unlikely(c->freelist)) { void **object; tail = 0; /* Hot objects. Put the slab first */ @@ -1517,7 +1493,7 @@ static void *__slab_alloc(struct kmem_cache *s, stat(c, ALLOC_REFILL); load_freelist: object = c->page->freelist; - if (unlikely(object == c->page->end)) + if (unlikely(!object)) goto another_slab; if (unlikely(SlabDebug(c->page))) goto debug; @@ -1525,7 +1501,7 @@ load_freelist: object = c->page->freelist; c->freelist = object[c->offset]; c->page->inuse = s->objects; - c->page->freelist = c->page->end; + c->page->freelist = NULL; c->node = page_to_nid(c->page); unlock_out: slab_unlock(c->page); @@ -1607,7 +1583,7 @@ static __always_inline void *slab_alloc(struct kmem_cache *s, local_irq_save(flags); c = get_cpu_slab(s, smp_processor_id()); - if (unlikely(is_end(c->freelist) || !node_match(c, node))) + if (unlikely(!c->freelist || !node_match(c, node))) object = __slab_alloc(s, gfpflags, node, addr, c); @@ -1677,7 +1653,7 @@ checks_ok: * was not on the partial list before * then add it. */ - if (unlikely(prior == page->end)) { + if (unlikely(!prior)) { add_partial(get_node(s, page_to_nid(page)), page, 1); stat(c, FREE_ADD_PARTIAL); } @@ -1687,7 +1663,7 @@ out_unlock: return; slab_empty: - if (prior != page->end) { + if (prior) { /* * Slab still on the partial list. */ @@ -1910,7 +1886,7 @@ static void init_kmem_cache_cpu(struct kmem_cache *s, struct kmem_cache_cpu *c) { c->page = NULL; - c->freelist = (void *)PAGE_MAPPING_ANON; + c->freelist = NULL; c->node = 0; c->offset = s->offset / sizeof(void *); c->objsize = s->objsize; @@ -3199,7 +3175,7 @@ static int validate_slab(struct kmem_cache *s, struct page *page, unsigned long *map) { void *p; - void *addr = slab_address(page); + void *addr = page_address(page); if (!check_slab(s, page) || !on_freelist(s, page, NULL)) @@ -3482,7 +3458,7 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, static void process_slab(struct loc_track *t, struct kmem_cache *s, struct page *page, enum track_item alloc) { - void *addr = slab_address(page); + void *addr = page_address(page); DECLARE_BITMAP(map, s->objects); void *p; -- GitLab From d9acf4b7b62d783d84273a61aed41a0f025b08ac Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 15 Feb 2008 15:22:21 -0800 Subject: [PATCH 301/923] slub: rename slab_objects to show_slab_objects The sysfs callback is better named show_slab_objects since it is always called from the xxx_show callbacks. We need the name for other purposes later. Reviewed-by: Pekka Enberg Signed-off-by: Christoph Lameter --- mm/slub.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index a873953e5a1..e01d399894c 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3567,7 +3567,7 @@ enum slab_stat_type { #define SO_CPU (1 << SL_CPU) #define SO_OBJECTS (1 << SL_OBJECTS) -static unsigned long slab_objects(struct kmem_cache *s, +static unsigned long show_slab_objects(struct kmem_cache *s, char *buf, unsigned long flags) { unsigned long total = 0; @@ -3730,25 +3730,25 @@ SLAB_ATTR_RO(aliases); static ssize_t slabs_show(struct kmem_cache *s, char *buf) { - return slab_objects(s, buf, SO_FULL|SO_PARTIAL|SO_CPU); + return show_slab_objects(s, buf, SO_FULL|SO_PARTIAL|SO_CPU); } SLAB_ATTR_RO(slabs); static ssize_t partial_show(struct kmem_cache *s, char *buf) { - return slab_objects(s, buf, SO_PARTIAL); + return show_slab_objects(s, buf, SO_PARTIAL); } SLAB_ATTR_RO(partial); static ssize_t cpu_slabs_show(struct kmem_cache *s, char *buf) { - return slab_objects(s, buf, SO_CPU); + return show_slab_objects(s, buf, SO_CPU); } SLAB_ATTR_RO(cpu_slabs); static ssize_t objects_show(struct kmem_cache *s, char *buf) { - return slab_objects(s, buf, SO_FULL|SO_PARTIAL|SO_CPU|SO_OBJECTS); + return show_slab_objects(s, buf, SO_FULL|SO_PARTIAL|SO_CPU|SO_OBJECTS); } SLAB_ATTR_RO(objects); -- GitLab From e153362a50a34439718a938a851bba977116e19a Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 15 Feb 2008 23:45:24 -0800 Subject: [PATCH 302/923] slub: Remove objsize check in kmem_cache_flags() There is no page->offset anymore and also no associated limit on the number of objects. The page->offset field was removed for 2.6.24. So the check in kmem_cache_flags() is now also obsolete (should have been dropped earlier, somehow a hunk vanished). Reviewed-by: Pekka Enberg Signed-by: Christoph Lameter --- mm/slub.c | 27 ++++----------------------- 1 file changed, 4 insertions(+), 23 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index e01d399894c..d7d0d866b6b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -997,30 +997,11 @@ static unsigned long kmem_cache_flags(unsigned long objsize, void (*ctor)(struct kmem_cache *, void *)) { /* - * The page->offset field is only 16 bit wide. This is an offset - * in units of words from the beginning of an object. If the slab - * size is bigger then we cannot move the free pointer behind the - * object anymore. - * - * On 32 bit platforms the limit is 256k. On 64bit platforms - * the limit is 512k. - * - * Debugging or ctor may create a need to move the free - * pointer. Fail if this happens. + * Enable debugging if selected on the kernel commandline. */ - if (objsize >= 65535 * sizeof(void *)) { - BUG_ON(flags & (SLAB_RED_ZONE | SLAB_POISON | - SLAB_STORE_USER | SLAB_DESTROY_BY_RCU)); - BUG_ON(ctor); - } else { - /* - * Enable debugging if selected on the kernel commandline. - */ - if (slub_debug && (!slub_debug_slabs || - strncmp(slub_debug_slabs, name, - strlen(slub_debug_slabs)) == 0)) - flags |= slub_debug; - } + if (slub_debug && (!slub_debug_slabs || + strncmp(slub_debug_slabs, name, strlen(slub_debug_slabs)) == 0)) + flags |= slub_debug; return flags; } -- GitLab From d692ef6dcd20da60786470654410e85f29c2ddd9 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 15 Feb 2008 23:45:24 -0800 Subject: [PATCH 303/923] slub: Remove useless checks in alloc_debug_processing Alloc debug processing is never called with a NULL object pointer. No reason to check for NULL. Reviewed-by: Pekka Enberg Signed-off-by: Christoph Lameter --- mm/slub.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index d7d0d866b6b..0a5a1001590 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -852,7 +852,7 @@ static int alloc_debug_processing(struct kmem_cache *s, struct page *page, if (!check_slab(s, page)) goto bad; - if (object && !on_freelist(s, page, object)) { + if (!on_freelist(s, page, object)) { object_err(s, page, object, "Object already allocated"); goto bad; } @@ -862,7 +862,7 @@ static int alloc_debug_processing(struct kmem_cache *s, struct page *page, goto bad; } - if (object && !check_object(s, page, object, 0)) + if (!check_object(s, page, object, 0)) goto bad; /* Success perform special debug activities for allocs */ -- GitLab From 27d9e4e94862c89d171cf70911b4f11ad69fb54e Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 15 Feb 2008 23:45:25 -0800 Subject: [PATCH 304/923] slub: Use the objsize from the kmem_cache_cpu structure No need to access the kmem_cache structure. We have the same value in kmem_cache_cpu. Reviewed-by: Pekka Enberg Signed-off-by: Christoph Lameter --- mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index 0a5a1001590..b49570ca08b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1681,8 +1681,8 @@ static __always_inline void slab_free(struct kmem_cache *s, unsigned long flags; local_irq_save(flags); - debug_check_no_locks_freed(object, s->objsize); c = get_cpu_slab(s, smp_processor_id()); + debug_check_no_locks_freed(object, c->objsize); if (likely(page == c->page && c->node >= 0)) { object[c->offset] = c->freelist; c->freelist = object; -- GitLab From ae20bfda6813387af18c7fdbc0f8b1fa7be2d05b Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 15 Feb 2008 23:45:25 -0800 Subject: [PATCH 305/923] slub: Remove BUG_ON() from ksize and omit checks for !SLUB_DEBUG The BUG_ONs are useless since the pointer derefs will lead to NULL deref errors anyways. Some of the checks are not necessary if no debugging is possible. Signed-off-by: Christoph Lameter --- mm/slub.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index b49570ca08b..09b5dc82df5 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2610,19 +2610,17 @@ size_t ksize(const void *object) struct page *page; struct kmem_cache *s; - BUG_ON(!object); if (unlikely(object == ZERO_SIZE_PTR)) return 0; page = virt_to_head_page(object); - BUG_ON(!page); if (unlikely(!PageSlab(page))) return PAGE_SIZE << compound_order(page); s = page->slab; - BUG_ON(!s); +#ifdef CONFIG_SLUB_DEBUG /* * Debugging requires use of the padding between object * and whatever may come after it. @@ -2630,6 +2628,7 @@ size_t ksize(const void *object) if (s->flags & (SLAB_RED_ZONE | SLAB_POISON)) return s->objsize; +#endif /* * If we have the need to store the freelist pointer * back there or track user information then we can @@ -2637,7 +2636,6 @@ size_t ksize(const void *object) */ if (s->flags & (SLAB_DESTROY_BY_RCU | SLAB_STORE_USER)) return s->inuse; - /* * Else we can use all the padding etc for the allocation */ -- GitLab From d8b42bf54be18b5d0bad941b3a1d3e8f022651a7 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 15 Feb 2008 23:45:25 -0800 Subject: [PATCH 306/923] slub: Rearrange #ifdef CONFIG_SLUB_DEBUG in calculate_sizes() Group SLUB_DEBUG code together to reduce the number of #ifdefs. Move some debug checks under the #ifdef. Reviewed-by: Pekka Enberg Signed-off-by: Christoph Lameter --- mm/slub.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 09b5dc82df5..72f5f4ecd1d 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2129,6 +2129,14 @@ static int calculate_sizes(struct kmem_cache *s) unsigned long size = s->objsize; unsigned long align = s->align; + /* + * Round up object size to the next word boundary. We can only + * place the free pointer at word boundaries and this determines + * the possible location of the free pointer. + */ + size = ALIGN(size, sizeof(void *)); + +#ifdef CONFIG_SLUB_DEBUG /* * Determine if we can poison the object itself. If the user of * the slab may touch the object after free or before allocation @@ -2140,14 +2148,7 @@ static int calculate_sizes(struct kmem_cache *s) else s->flags &= ~__OBJECT_POISON; - /* - * Round up object size to the next word boundary. We can only - * place the free pointer at word boundaries and this determines - * the possible location of the free pointer. - */ - size = ALIGN(size, sizeof(void *)); -#ifdef CONFIG_SLUB_DEBUG /* * If we are Redzoning then check if there is some space between the * end of the object and the free pointer. If not then add an -- GitLab From 6446faa2ff30ca77c5b25e886bbbfb81c63f1c91 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 15 Feb 2008 23:45:26 -0800 Subject: [PATCH 307/923] slub: Fix up comments Provide comments and fix up various spelling / style issues. Signed-off-by: Christoph Lameter --- include/linux/slub_def.h | 4 ++-- mm/slub.c | 49 +++++++++++++++++++++++----------------- 2 files changed, 30 insertions(+), 23 deletions(-) diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index 57deecc79d5..b00c1c73eb0 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -61,7 +61,7 @@ struct kmem_cache { int size; /* The size of an object including meta data */ int objsize; /* The size of an object without meta data */ int offset; /* Free pointer offset. */ - int order; + int order; /* Current preferred allocation order */ /* * Avoid an extra cache line for UP, SMP and for the node local to @@ -138,11 +138,11 @@ static __always_inline int kmalloc_index(size_t size) if (size <= 512) return 9; if (size <= 1024) return 10; if (size <= 2 * 1024) return 11; + if (size <= 4 * 1024) return 12; /* * The following is only needed to support architectures with a larger page * size than 4k. */ - if (size <= 4 * 1024) return 12; if (size <= 8 * 1024) return 13; if (size <= 16 * 1024) return 14; if (size <= 32 * 1024) return 15; diff --git a/mm/slub.c b/mm/slub.c index 72f5f4ecd1d..10d546954ef 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -291,6 +291,7 @@ static inline struct kmem_cache_cpu *get_cpu_slab(struct kmem_cache *s, int cpu) #endif } +/* Verify that a pointer has an address that is valid within a slab page */ static inline int check_valid_pointer(struct kmem_cache *s, struct page *page, const void *object) { @@ -619,7 +620,7 @@ static int check_bytes_and_report(struct kmem_cache *s, struct page *page, * A. Free pointer (if we cannot overwrite object on free) * B. Tracking data for SLAB_STORE_USER * C. Padding to reach required alignment boundary or at mininum - * one word if debuggin is on to be able to detect writes + * one word if debugging is on to be able to detect writes * before the word boundary. * * Padding is done using 0x5a (POISON_INUSE) @@ -1268,7 +1269,7 @@ static struct page *get_any_partial(struct kmem_cache *s, gfp_t flags) * may return off node objects because partial slabs are obtained * from other nodes and filled up. * - * If /sys/slab/xx/defrag_ratio is set to 100 (which makes + * If /sys/kernel/slab/xx/defrag_ratio is set to 100 (which makes * defrag_ratio = 1000) then every (well almost) allocation will * first attempt to defrag slab caches on other nodes. This means * scanning over all nodes to look for partial slabs which may be @@ -1343,9 +1344,11 @@ static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail) * Adding an empty slab to the partial slabs in order * to avoid page allocator overhead. This slab needs * to come after the other slabs with objects in - * order to fill them up. That way the size of the - * partial list stays small. kmem_cache_shrink can - * reclaim empty slabs from the partial list. + * so that the others get filled first. That way the + * size of the partial list stays small. + * + * kmem_cache_shrink can reclaim any empty slabs from the + * partial list. */ add_partial(n, page, 1); slab_unlock(page); @@ -1368,7 +1371,7 @@ static void deactivate_slab(struct kmem_cache *s, struct kmem_cache_cpu *c) if (c->freelist) stat(c, DEACTIVATE_REMOTE_FREES); /* - * Merge cpu freelist into freelist. Typically we get here + * Merge cpu freelist into slab freelist. Typically we get here * because both freelists are empty. So this is unlikely * to occur. */ @@ -1399,6 +1402,7 @@ static inline void flush_slab(struct kmem_cache *s, struct kmem_cache_cpu *c) /* * Flush cpu slab. + * * Called from IPI handler with interrupts disabled. */ static inline void __flush_cpu_slab(struct kmem_cache *s, int cpu) @@ -1457,7 +1461,8 @@ static inline int node_match(struct kmem_cache_cpu *c, int node) * rest of the freelist to the lockless freelist. * * And if we were unable to get a new slab from the partial slab lists then - * we need to allocate a new slab. This is slowest path since we may sleep. + * we need to allocate a new slab. This is the slowest path since it involves + * a call to the page allocator and the setup of a new slab. */ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, void *addr, struct kmem_cache_cpu *c) @@ -1471,7 +1476,9 @@ static void *__slab_alloc(struct kmem_cache *s, slab_lock(c->page); if (unlikely(!node_match(c, node))) goto another_slab; + stat(c, ALLOC_REFILL); + load_freelist: object = c->page->freelist; if (unlikely(!object)) @@ -1616,6 +1623,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page, if (unlikely(SlabDebug(page))) goto debug; + checks_ok: prior = object[offset] = page->freelist; page->freelist = object; @@ -1630,8 +1638,7 @@ checks_ok: goto slab_empty; /* - * Objects left in the slab. If it - * was not on the partial list before + * Objects left in the slab. If it was not on the partial list before * then add it. */ if (unlikely(!prior)) { @@ -1845,13 +1852,11 @@ static unsigned long calculate_alignment(unsigned long flags, unsigned long align, unsigned long size) { /* - * If the user wants hardware cache aligned objects then - * follow that suggestion if the object is sufficiently - * large. + * If the user wants hardware cache aligned objects then follow that + * suggestion if the object is sufficiently large. * - * The hardware cache alignment cannot override the - * specified alignment though. If that is greater - * then use it. + * The hardware cache alignment cannot override the specified + * alignment though. If that is greater then use it. */ if ((flags & SLAB_HWCACHE_ALIGN) && size > cache_line_size() / 2) @@ -2049,6 +2054,7 @@ static struct kmem_cache_node *early_kmem_cache_node_alloc(gfp_t gfpflags, #endif init_kmem_cache_node(n); atomic_long_inc(&n->nr_slabs); + /* * lockdep requires consistent irq usage for each lock * so even though there cannot be a race this early in @@ -2301,7 +2307,7 @@ int kmem_ptr_validate(struct kmem_cache *s, const void *object) /* * We could also check if the object is on the slabs freelist. * But this would be too expensive and it seems that the main - * purpose of kmem_ptr_valid is to check if the object belongs + * purpose of kmem_ptr_valid() is to check if the object belongs * to a certain slab. */ return 1; @@ -2913,7 +2919,7 @@ void __init kmem_cache_init(void) /* * Patch up the size_index table if we have strange large alignment * requirements for the kmalloc array. This is only the case for - * mips it seems. The standard arches will not generate any code here. + * MIPS it seems. The standard arches will not generate any code here. * * Largest permitted alignment is 256 bytes due to the way we * handle the index determination for the smaller caches. @@ -2942,7 +2948,6 @@ void __init kmem_cache_init(void) kmem_size = sizeof(struct kmem_cache); #endif - printk(KERN_INFO "SLUB: Genslabs=%d, HWalign=%d, Order=%d-%d, MinObjects=%d," " CPUs=%d, Nodes=%d\n", @@ -3039,12 +3044,15 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, */ for_each_online_cpu(cpu) get_cpu_slab(s, cpu)->objsize = s->objsize; + s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *))); up_write(&slub_lock); + if (sysfs_slab_alias(s, name)) goto err; return s; } + s = kmalloc(kmem_size, GFP_KERNEL); if (s) { if (kmem_cache_open(s, GFP_KERNEL, name, @@ -3927,7 +3935,6 @@ SLAB_ATTR(remote_node_defrag_ratio); #endif #ifdef CONFIG_SLUB_STATS - static int show_stat(struct kmem_cache *s, char *buf, enum stat_item si) { unsigned long sum = 0; @@ -4111,8 +4118,8 @@ static struct kset *slab_kset; #define ID_STR_LENGTH 64 /* Create a unique string id for a slab cache: - * format - * :[flags-]size:[memory address of kmemcache] + * + * Format :[flags-]size */ static char *create_unique_id(struct kmem_cache *s) { -- GitLab From 7693143481730686362cc6360e3d47c012d9b2c8 Mon Sep 17 00:00:00 2001 From: Pekka J Enberg Date: Sat, 1 Mar 2008 13:43:54 -0800 Subject: [PATCH 308/923] slub: look up object from the freelist once We only need to look up object from c->page->freelist once in __slab_alloc(). Signed-off-by: Pekka Enberg Signed-off-by: Christoph Lameter --- mm/slub.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 10d546954ef..db8026ba049 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1486,7 +1486,6 @@ load_freelist: if (unlikely(SlabDebug(c->page))) goto debug; - object = c->page->freelist; c->freelist = object[c->offset]; c->page->inuse = s->objects; c->page->freelist = NULL; @@ -1542,7 +1541,6 @@ new_slab: return NULL; debug: - object = c->page->freelist; if (!alloc_debug_processing(s, c->page, object, addr)) goto another_slab; -- GitLab From f619cfe1bda809a97c407f4c723eb3235ecd64e5 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Sat, 1 Mar 2008 13:56:40 -0800 Subject: [PATCH 309/923] slub: Add kmalloc_large_node() to support kmalloc_node fallback Slub is missing some NUMA support for large kmallocs. Provide that. Reviewed-by: Pekka Enberg Signed-off-by: Christoph Lameter --- mm/slub.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index db8026ba049..ecacacdce9d 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2592,13 +2592,24 @@ void *__kmalloc(size_t size, gfp_t flags) } EXPORT_SYMBOL(__kmalloc); +static void *kmalloc_large_node(size_t size, gfp_t flags, int node) +{ + struct page *page = alloc_pages_node(node, flags | __GFP_COMP, + get_order(size)); + + if (page) + return page_address(page); + else + return NULL; +} + #ifdef CONFIG_NUMA void *__kmalloc_node(size_t size, gfp_t flags, int node) { struct kmem_cache *s; if (unlikely(size > PAGE_SIZE)) - return kmalloc_large(size, flags); + return kmalloc_large_node(size, flags, node); s = get_slab(size, flags); @@ -3146,7 +3157,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags, struct kmem_cache *s; if (unlikely(size > PAGE_SIZE)) - return kmalloc_large(size, gfpflags); + return kmalloc_large_node(size, gfpflags, node); s = get_slab(size, gfpflags); -- GitLab From 62e5c4b4d6351707346695fd9e151b6cda85cbe1 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Sun, 2 Mar 2008 23:28:24 +0300 Subject: [PATCH 310/923] slub: fix possible NULL pointer dereference This patch fix possible NULL pointer dereference if kzalloc failed. To be able to return proper error code the function return type is changed to ssize_t (according to callees and sysfs definitions). Signed-off-by: Cyrill Gorcunov Signed-off-by: Christoph Lameter --- mm/slub.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index ecacacdce9d..0863fd38a5c 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3564,8 +3564,8 @@ enum slab_stat_type { #define SO_CPU (1 << SL_CPU) #define SO_OBJECTS (1 << SL_OBJECTS) -static unsigned long show_slab_objects(struct kmem_cache *s, - char *buf, unsigned long flags) +static ssize_t show_slab_objects(struct kmem_cache *s, + char *buf, unsigned long flags) { unsigned long total = 0; int cpu; @@ -3575,6 +3575,8 @@ static unsigned long show_slab_objects(struct kmem_cache *s, unsigned long *per_cpu; nodes = kzalloc(2 * sizeof(unsigned long) * nr_node_ids, GFP_KERNEL); + if (!nodes) + return -ENOMEM; per_cpu = nodes + nr_node_ids; for_each_possible_cpu(cpu) { -- GitLab From 5ce2087ed0eb424e0889bdc9102727f65d2ecdde Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Mon, 3 Mar 2008 01:23:49 +0000 Subject: [PATCH 311/923] Fix default compose table initialization Oddly enough, unsigned int c = '\300'; puts a "negative" value in c, not 0300... This fixes the default unicode compose table by using integers instead of character constants. Signed-off-by: Samuel Thibault Signed-off-by: Linus Torvalds --- drivers/acorn/char/defkeymap-l7200.c | 68 ++++++++++++++-------------- drivers/char/defkeymap.c_shipped | 68 ++++++++++++++-------------- drivers/s390/char/defkeymap.c | 4 +- 3 files changed, 70 insertions(+), 70 deletions(-) diff --git a/drivers/acorn/char/defkeymap-l7200.c b/drivers/acorn/char/defkeymap-l7200.c index 28a5fbc6aa1..93d80a1c36f 100644 --- a/drivers/acorn/char/defkeymap-l7200.c +++ b/drivers/acorn/char/defkeymap-l7200.c @@ -347,40 +347,40 @@ char *func_table[MAX_NR_FUNC] = { }; struct kbdiacruc accent_table[MAX_DIACR] = { - {'`', 'A', '\300'}, {'`', 'a', '\340'}, - {'\'', 'A', '\301'}, {'\'', 'a', '\341'}, - {'^', 'A', '\302'}, {'^', 'a', '\342'}, - {'~', 'A', '\303'}, {'~', 'a', '\343'}, - {'"', 'A', '\304'}, {'"', 'a', '\344'}, - {'O', 'A', '\305'}, {'o', 'a', '\345'}, - {'0', 'A', '\305'}, {'0', 'a', '\345'}, - {'A', 'A', '\305'}, {'a', 'a', '\345'}, - {'A', 'E', '\306'}, {'a', 'e', '\346'}, - {',', 'C', '\307'}, {',', 'c', '\347'}, - {'`', 'E', '\310'}, {'`', 'e', '\350'}, - {'\'', 'E', '\311'}, {'\'', 'e', '\351'}, - {'^', 'E', '\312'}, {'^', 'e', '\352'}, - {'"', 'E', '\313'}, {'"', 'e', '\353'}, - {'`', 'I', '\314'}, {'`', 'i', '\354'}, - {'\'', 'I', '\315'}, {'\'', 'i', '\355'}, - {'^', 'I', '\316'}, {'^', 'i', '\356'}, - {'"', 'I', '\317'}, {'"', 'i', '\357'}, - {'-', 'D', '\320'}, {'-', 'd', '\360'}, - {'~', 'N', '\321'}, {'~', 'n', '\361'}, - {'`', 'O', '\322'}, {'`', 'o', '\362'}, - {'\'', 'O', '\323'}, {'\'', 'o', '\363'}, - {'^', 'O', '\324'}, {'^', 'o', '\364'}, - {'~', 'O', '\325'}, {'~', 'o', '\365'}, - {'"', 'O', '\326'}, {'"', 'o', '\366'}, - {'/', 'O', '\330'}, {'/', 'o', '\370'}, - {'`', 'U', '\331'}, {'`', 'u', '\371'}, - {'\'', 'U', '\332'}, {'\'', 'u', '\372'}, - {'^', 'U', '\333'}, {'^', 'u', '\373'}, - {'"', 'U', '\334'}, {'"', 'u', '\374'}, - {'\'', 'Y', '\335'}, {'\'', 'y', '\375'}, - {'T', 'H', '\336'}, {'t', 'h', '\376'}, - {'s', 's', '\337'}, {'"', 'y', '\377'}, - {'s', 'z', '\337'}, {'i', 'j', '\377'}, + {'`', 'A', 0300}, {'`', 'a', 0340}, + {'\'', 'A', 0301}, {'\'', 'a', 0341}, + {'^', 'A', 0302}, {'^', 'a', 0342}, + {'~', 'A', 0303}, {'~', 'a', 0343}, + {'"', 'A', 0304}, {'"', 'a', 0344}, + {'O', 'A', 0305}, {'o', 'a', 0345}, + {'0', 'A', 0305}, {'0', 'a', 0345}, + {'A', 'A', 0305}, {'a', 'a', 0345}, + {'A', 'E', 0306}, {'a', 'e', 0346}, + {',', 'C', 0307}, {',', 'c', 0347}, + {'`', 'E', 0310}, {'`', 'e', 0350}, + {'\'', 'E', 0311}, {'\'', 'e', 0351}, + {'^', 'E', 0312}, {'^', 'e', 0352}, + {'"', 'E', 0313}, {'"', 'e', 0353}, + {'`', 'I', 0314}, {'`', 'i', 0354}, + {'\'', 'I', 0315}, {'\'', 'i', 0355}, + {'^', 'I', 0316}, {'^', 'i', 0356}, + {'"', 'I', 0317}, {'"', 'i', 0357}, + {'-', 'D', 0320}, {'-', 'd', 0360}, + {'~', 'N', 0321}, {'~', 'n', 0361}, + {'`', 'O', 0322}, {'`', 'o', 0362}, + {'\'', 'O', 0323}, {'\'', 'o', 0363}, + {'^', 'O', 0324}, {'^', 'o', 0364}, + {'~', 'O', 0325}, {'~', 'o', 0365}, + {'"', 'O', 0326}, {'"', 'o', 0366}, + {'/', 'O', 0330}, {'/', 'o', 0370}, + {'`', 'U', 0331}, {'`', 'u', 0371}, + {'\'', 'U', 0332}, {'\'', 'u', 0372}, + {'^', 'U', 0333}, {'^', 'u', 0373}, + {'"', 'U', 0334}, {'"', 'u', 0374}, + {'\'', 'Y', 0335}, {'\'', 'y', 0375}, + {'T', 'H', 0336}, {'t', 'h', 0376}, + {'s', 's', 0337}, {'"', 'y', 0377}, + {'s', 'z', 0337}, {'i', 'j', 0377}, }; unsigned int accent_table_size = 68; diff --git a/drivers/char/defkeymap.c_shipped b/drivers/char/defkeymap.c_shipped index 0aa419a6176..d2208dfe3f6 100644 --- a/drivers/char/defkeymap.c_shipped +++ b/drivers/char/defkeymap.c_shipped @@ -223,40 +223,40 @@ char *func_table[MAX_NR_FUNC] = { }; struct kbdiacruc accent_table[MAX_DIACR] = { - {'`', 'A', '\300'}, {'`', 'a', '\340'}, - {'\'', 'A', '\301'}, {'\'', 'a', '\341'}, - {'^', 'A', '\302'}, {'^', 'a', '\342'}, - {'~', 'A', '\303'}, {'~', 'a', '\343'}, - {'"', 'A', '\304'}, {'"', 'a', '\344'}, - {'O', 'A', '\305'}, {'o', 'a', '\345'}, - {'0', 'A', '\305'}, {'0', 'a', '\345'}, - {'A', 'A', '\305'}, {'a', 'a', '\345'}, - {'A', 'E', '\306'}, {'a', 'e', '\346'}, - {',', 'C', '\307'}, {',', 'c', '\347'}, - {'`', 'E', '\310'}, {'`', 'e', '\350'}, - {'\'', 'E', '\311'}, {'\'', 'e', '\351'}, - {'^', 'E', '\312'}, {'^', 'e', '\352'}, - {'"', 'E', '\313'}, {'"', 'e', '\353'}, - {'`', 'I', '\314'}, {'`', 'i', '\354'}, - {'\'', 'I', '\315'}, {'\'', 'i', '\355'}, - {'^', 'I', '\316'}, {'^', 'i', '\356'}, - {'"', 'I', '\317'}, {'"', 'i', '\357'}, - {'-', 'D', '\320'}, {'-', 'd', '\360'}, - {'~', 'N', '\321'}, {'~', 'n', '\361'}, - {'`', 'O', '\322'}, {'`', 'o', '\362'}, - {'\'', 'O', '\323'}, {'\'', 'o', '\363'}, - {'^', 'O', '\324'}, {'^', 'o', '\364'}, - {'~', 'O', '\325'}, {'~', 'o', '\365'}, - {'"', 'O', '\326'}, {'"', 'o', '\366'}, - {'/', 'O', '\330'}, {'/', 'o', '\370'}, - {'`', 'U', '\331'}, {'`', 'u', '\371'}, - {'\'', 'U', '\332'}, {'\'', 'u', '\372'}, - {'^', 'U', '\333'}, {'^', 'u', '\373'}, - {'"', 'U', '\334'}, {'"', 'u', '\374'}, - {'\'', 'Y', '\335'}, {'\'', 'y', '\375'}, - {'T', 'H', '\336'}, {'t', 'h', '\376'}, - {'s', 's', '\337'}, {'"', 'y', '\377'}, - {'s', 'z', '\337'}, {'i', 'j', '\377'}, + {'`', 'A', 0300}, {'`', 'a', 0340}, + {'\'', 'A', 0301}, {'\'', 'a', 0341}, + {'^', 'A', 0302}, {'^', 'a', 0342}, + {'~', 'A', 0303}, {'~', 'a', 0343}, + {'"', 'A', 0304}, {'"', 'a', 0344}, + {'O', 'A', 0305}, {'o', 'a', 0345}, + {'0', 'A', 0305}, {'0', 'a', 0345}, + {'A', 'A', 0305}, {'a', 'a', 0345}, + {'A', 'E', 0306}, {'a', 'e', 0346}, + {',', 'C', 0307}, {',', 'c', 0347}, + {'`', 'E', 0310}, {'`', 'e', 0350}, + {'\'', 'E', 0311}, {'\'', 'e', 0351}, + {'^', 'E', 0312}, {'^', 'e', 0352}, + {'"', 'E', 0313}, {'"', 'e', 0353}, + {'`', 'I', 0314}, {'`', 'i', 0354}, + {'\'', 'I', 0315}, {'\'', 'i', 0355}, + {'^', 'I', 0316}, {'^', 'i', 0356}, + {'"', 'I', 0317}, {'"', 'i', 0357}, + {'-', 'D', 0320}, {'-', 'd', 0360}, + {'~', 'N', 0321}, {'~', 'n', 0361}, + {'`', 'O', 0322}, {'`', 'o', 0362}, + {'\'', 'O', 0323}, {'\'', 'o', 0363}, + {'^', 'O', 0324}, {'^', 'o', 0364}, + {'~', 'O', 0325}, {'~', 'o', 0365}, + {'"', 'O', 0326}, {'"', 'o', 0366}, + {'/', 'O', 0330}, {'/', 'o', 0370}, + {'`', 'U', 0331}, {'`', 'u', 0371}, + {'\'', 'U', 0332}, {'\'', 'u', 0372}, + {'^', 'U', 0333}, {'^', 'u', 0373}, + {'"', 'U', 0334}, {'"', 'u', 0374}, + {'\'', 'Y', 0335}, {'\'', 'y', 0375}, + {'T', 'H', 0336}, {'t', 'h', 0376}, + {'s', 's', 0337}, {'"', 'y', 0377}, + {'s', 'z', 0337}, {'i', 'j', 0377}, }; unsigned int accent_table_size = 68; diff --git a/drivers/s390/char/defkeymap.c b/drivers/s390/char/defkeymap.c index 389346cda6c..9692d6a205e 100644 --- a/drivers/s390/char/defkeymap.c +++ b/drivers/s390/char/defkeymap.c @@ -151,8 +151,8 @@ char *func_table[MAX_NR_FUNC] = { }; struct kbdiacruc accent_table[MAX_DIACR] = { - {'^', 'c', '\003'}, {'^', 'd', '\004'}, - {'^', 'z', '\032'}, {'^', '\012', '\000'}, + {'^', 'c', 0003}, {'^', 'd', 0004}, + {'^', 'z', 0032}, {'^', 0012', 0000}, }; unsigned int accent_table_size = 4; -- GitLab From f49ee505b1ecb5960984880740f09aba87f870dc Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 2 Mar 2008 21:44:40 +0300 Subject: [PATCH 312/923] introduce kill_orphaned_pgrp() helper Factor out the common code in reparent_thread() and exit_notify(). No functional changes. Signed-off-by: Oleg Nesterov Signed-off-by: Linus Torvalds --- kernel/exit.c | 74 ++++++++++++++++++++++++--------------------------- 1 file changed, 35 insertions(+), 39 deletions(-) diff --git a/kernel/exit.c b/kernel/exit.c index 506a957b665..11fcce76015 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -255,6 +255,37 @@ static int has_stopped_jobs(struct pid *pgrp) return retval; } +/* + * Check to see if any process groups have become orphaned as + * a result of our exiting, and if they have any stopped jobs, + * send them a SIGHUP and then a SIGCONT. (POSIX 3.2.2.2) + */ +static void +kill_orphaned_pgrp(struct task_struct *tsk, struct task_struct *parent) +{ + struct pid *pgrp = task_pgrp(tsk); + struct task_struct *ignored_task = tsk; + + if (!parent) + /* exit: our father is in a different pgrp than + * we are and we were the only connection outside. + */ + parent = tsk->real_parent; + else + /* reparent: our child is in a different pgrp than + * we are, and it was the only connection outside. + */ + ignored_task = NULL; + + if (task_pgrp(parent) != pgrp && + task_session(parent) == task_session(tsk) && + will_become_orphaned_pgrp(pgrp, ignored_task) && + has_stopped_jobs(pgrp)) { + __kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp); + __kill_pgrp_info(SIGCONT, SEND_SIG_PRIV, pgrp); + } +} + /** * reparent_to_kthreadd - Reparent the calling kernel thread to kthreadd * @@ -635,22 +666,7 @@ reparent_thread(struct task_struct *p, struct task_struct *father, int traced) p->exit_signal != -1 && thread_group_empty(p)) do_notify_parent(p, p->exit_signal); - /* - * process group orphan check - * Case ii: Our child is in a different pgrp - * than we are, and it was the only connection - * outside, so the child pgrp is now orphaned. - */ - if ((task_pgrp(p) != task_pgrp(father)) && - (task_session(p) == task_session(father))) { - struct pid *pgrp = task_pgrp(p); - - if (will_become_orphaned_pgrp(pgrp, NULL) && - has_stopped_jobs(pgrp)) { - __kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp); - __kill_pgrp_info(SIGCONT, SEND_SIG_PRIV, pgrp); - } - } + kill_orphaned_pgrp(p, father); } /* @@ -738,8 +754,6 @@ static void forget_original_parent(struct task_struct *father) static void exit_notify(struct task_struct *tsk) { int state; - struct task_struct *t; - struct pid *pgrp; /* * This does two things: @@ -753,25 +767,7 @@ static void exit_notify(struct task_struct *tsk) exit_task_namespaces(tsk); write_lock_irq(&tasklist_lock); - /* - * Check to see if any process groups have become orphaned - * as a result of our exiting, and if they have any stopped - * jobs, send them a SIGHUP and then a SIGCONT. (POSIX 3.2.2.2) - * - * Case i: Our father is in a different pgrp than we are - * and we were the only connection outside, so our pgrp - * is about to become orphaned. - */ - t = tsk->real_parent; - - pgrp = task_pgrp(tsk); - if ((task_pgrp(t) != pgrp) && - (task_session(t) == task_session(tsk)) && - will_become_orphaned_pgrp(pgrp, tsk) && - has_stopped_jobs(pgrp)) { - __kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp); - __kill_pgrp_info(SIGCONT, SEND_SIG_PRIV, pgrp); - } + kill_orphaned_pgrp(tsk, NULL); /* Let father know we died * @@ -788,8 +784,8 @@ static void exit_notify(struct task_struct *tsk) * the same after a fork. */ if (tsk->exit_signal != SIGCHLD && tsk->exit_signal != -1 && - ( tsk->parent_exec_id != t->self_exec_id || - tsk->self_exec_id != tsk->parent_exec_id) + (tsk->parent_exec_id != tsk->real_parent->self_exec_id || + tsk->self_exec_id != tsk->parent_exec_id) && !capable(CAP_KILL)) tsk->exit_signal = SIGCHLD; -- GitLab From 05e83df624fe682bb8571cdb2c6d5284a99c3066 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 2 Mar 2008 21:44:42 +0300 Subject: [PATCH 313/923] will_become_orphaned_pgrp: partially fix insufficient ->exit_state check p->exit_state != 0 doesn't mean this process is dead, it may have sub-threads. Change the code to use "p->exit_state && thread_group_empty(p)" instead. Without this patch, ^Z doesn't deliver SIGTSTP to the foreground process if the main thread has exited. However, the new check is not perfect either. There is a window when exit_notify() drops tasklist and before release_task(). Suppose that the last (non-leader) thread exits. This means that entire group exits, but thread_group_empty() is not true yet. As Eric pointed out, is_global_init() is wrong as well, but I did not dare to do other changes. Just for the record, has_stopped_jobs() is absolutely wrong too. But we can't fix it now, we should first fix SIGNAL_STOP_STOPPED issues. Even with this patch ^Z doesn't play well with the dead main thread. The task is stopped correctly but do_wait(WSTOPPED) won't see it. This is another unrelated issue, will be (hopefully) fixed separately. Signed-off-by: Oleg Nesterov Signed-off-by: Linus Torvalds --- kernel/exit.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/kernel/exit.c b/kernel/exit.c index 11fcce76015..41c1edace97 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -214,20 +214,19 @@ struct pid *session_of_pgrp(struct pid *pgrp) static int will_become_orphaned_pgrp(struct pid *pgrp, struct task_struct *ignored_task) { struct task_struct *p; - int ret = 1; do_each_pid_task(pgrp, PIDTYPE_PGID, p) { - if (p == ignored_task - || p->exit_state - || is_global_init(p->real_parent)) + if ((p == ignored_task) || + (p->exit_state && thread_group_empty(p)) || + is_global_init(p->real_parent)) continue; + if (task_pgrp(p->real_parent) != pgrp && - task_session(p->real_parent) == task_session(p)) { - ret = 0; - break; - } + task_session(p->real_parent) == task_session(p)) + return 0; } while_each_pid_task(pgrp, PIDTYPE_PGID, p); - return ret; /* (sighing) "Often!" */ + + return 1; } int is_current_pgrp_orphaned(void) -- GitLab From 821c7de7194e77afee1a69d50830a329a6d9af9f Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 2 Mar 2008 21:44:44 +0300 Subject: [PATCH 314/923] exit_notify: fix kill_orphaned_pgrp() usage with mt exit 1. exit_notify() always calls kill_orphaned_pgrp(). This is wrong, we should do this only when the whole process exits. 2. exit_notify() uses "current" as "ignored_task", obviously wrong. Use ->group_leader instead. Test case: void hup(int sig) { printf("HUP received\n"); } void *tfunc(void *arg) { sleep(2); printf("sub-thread exited\n"); return NULL; } int main(int argc, char *argv[]) { if (!fork()) { signal(SIGHUP, hup); kill(getpid(), SIGSTOP); exit(0); } pthread_t thr; pthread_create(&thr, NULL, tfunc, NULL); sleep(1); printf("main thread exited\n"); syscall(__NR_exit, 0); return 0; } output: main thread exited HUP received Hangup With this patch the output is: main thread exited sub-thread exited HUP received Signed-off-by: Oleg Nesterov Signed-off-by: Linus Torvalds --- kernel/exit.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/kernel/exit.c b/kernel/exit.c index 41c1edace97..cd20bf07e9e 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -750,7 +750,7 @@ static void forget_original_parent(struct task_struct *father) * Send signals to all our closest relatives so that they know * to properly mourn us.. */ -static void exit_notify(struct task_struct *tsk) +static void exit_notify(struct task_struct *tsk, int group_dead) { int state; @@ -766,7 +766,8 @@ static void exit_notify(struct task_struct *tsk) exit_task_namespaces(tsk); write_lock_irq(&tasklist_lock); - kill_orphaned_pgrp(tsk, NULL); + if (group_dead) + kill_orphaned_pgrp(tsk->group_leader, NULL); /* Let father know we died * @@ -981,7 +982,7 @@ NORET_TYPE void do_exit(long code) module_put(tsk->binfmt->module); proc_exit_connector(tsk); - exit_notify(tsk); + exit_notify(tsk, group_dead); #ifdef CONFIG_NUMA mpol_free(tsk->mempolicy); tsk->mempolicy = NULL; -- GitLab From f0e98c387e61de00646be31fab4c2fa0224e1efb Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 3 Mar 2008 15:01:05 -0800 Subject: [PATCH 315/923] [SPARC]: Fix link errors with gcc-4.3 Reported by Adrian Bunk. Just like in changeset a3f9985843b674cbcb58f39fab8416675e7ab842 ("[SPARC64]: Move kernel unaligned trap handlers into assembler file.") we have to move the assembler bits into a seperate asm file because as far as the compiler is concerned these inline bits we're doing in unaligned.c are unreachable. Signed-off-by: David S. Miller --- arch/sparc/kernel/Makefile | 5 +- arch/sparc/kernel/una_asm.S | 153 +++++++++++++++++++++ arch/sparc/kernel/unaligned.c | 252 +++++++--------------------------- 3 files changed, 203 insertions(+), 207 deletions(-) create mode 100644 arch/sparc/kernel/una_asm.S diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index e795f282dec..bf1b15d3f6f 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -1,4 +1,4 @@ -# $Id: Makefile,v 1.62 2000/12/15 00:41:17 davem Exp $ +# # Makefile for the linux kernel. # @@ -12,7 +12,8 @@ obj-y := entry.o wof.o wuf.o etrap.o rtrap.o traps.o $(IRQ_OBJS) \ sys_sparc.o sunos_asm.o systbls.o \ time.o windows.o cpu.o devices.o sclow.o \ tadpole.o tick14.o ptrace.o sys_solaris.o \ - unaligned.o muldiv.o semaphore.o prom.o of_device.o devres.o + unaligned.o una_asm.o muldiv.o semaphore.o \ + prom.o of_device.o devres.o devres-y = ../../../kernel/irq/devres.o diff --git a/arch/sparc/kernel/una_asm.S b/arch/sparc/kernel/una_asm.S new file mode 100644 index 00000000000..8cc03458eb7 --- /dev/null +++ b/arch/sparc/kernel/una_asm.S @@ -0,0 +1,153 @@ +/* una_asm.S: Kernel unaligned trap assembler helpers. + * + * Copyright (C) 1996,2005,2008 David S. Miller (davem@davemloft.net) + * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#include + + .text + +retl_efault: + retl + mov -EFAULT, %o0 + + /* int __do_int_store(unsigned long *dst_addr, int size, + * unsigned long *src_val) + * + * %o0 = dest_addr + * %o1 = size + * %o2 = src_val + * + * Return '0' on success, -EFAULT on failure. + */ + .globl __do_int_store +__do_int_store: + ld [%o2], %g1 + cmp %1, 2 + be 2f + cmp %1, 4 + be 1f + srl %g1, 24, %g2 + srl %g1, 16, %g7 +4: stb %g2, [%o0] + srl %g1, 8, %g2 +5: stb %g7, [%o0 + 1] + ld [%o2 + 4], %g7 +6: stb %g2, [%o0 + 2] + srl %g7, 24, %g2 +7: stb %g1, [%o0 + 3] + srl %g7, 16, %g1 +8: stb %g2, [%o0 + 4] + srl %g7, 8, %g2 +9: stb %g1, [%o0 + 5] +10: stb %g2, [%o0 + 6] + b 0f +11: stb %g7, [%o0 + 7] +1: srl %g1, 16, %g7 +12: stb %g2, [%o0] + srl %g1, 8, %g2 +13: stb %g7, [%o0 + 1] +14: stb %g2, [%o0 + 2] + b 0f +15: stb %g1, [%o0 + 3] +2: srl %g1, 8, %g2 +16: stb %g2, [%o0] +17: stb %g1, [%o0 + 1] +0: retl + mov 0, %o0 + + .section __ex_table,#alloc + .word 4b, retl_efault + .word 5b, retl_efault + .word 6b, retl_efault + .word 7b, retl_efault + .word 8b, retl_efault + .word 9b, retl_efault + .word 10b, retl_efault + .word 11b, retl_efault + .word 12b, retl_efault + .word 13b, retl_efault + .word 14b, retl_efault + .word 15b, retl_efault + .word 16b, retl_efault + .word 17b, retl_efault + .previous + + /* int do_int_load(unsigned long *dest_reg, int size, + * unsigned long *saddr, int is_signed) + * + * %o0 = dest_reg + * %o1 = size + * %o2 = saddr + * %o3 = is_signed + * + * Return '0' on success, -EFAULT on failure. + */ + .globl do_int_load +do_int_load: + cmp %o1, 8 + be 9f + cmp %o1, 4 + be 6f +4: ldub [%o2], %g1 +5: ldub [%o2 + 1], %g2 + sll %g1, 8, %g1 + tst %o3 + be 3f + or %g1, %g2, %g1 + sll %g1, 16, %g1 + sra %g1, 16, %g1 +3: b 0f + st %g1, [%o0] +6: ldub [%o2 + 1], %g2 + sll %g1, 24, %g1 +7: ldub [%o2 + 2], %g7 + sll %g2, 16, %g2 +8: ldub [%o2 + 3], %g3 + sll %g7, 8, %g7 + or %g3, %g2, %g3 + or %g7, %g3, %g7 + or %g1, %g7, %g1 + b 0f + st %g1, [%o0] +9: ldub [%o2], %g1 +10: ldub [%o2 + 1], %g2 + sll %g1, 24, %g1 +11: ldub [%o2 + 2], %g7 + sll %g2, 16, %g2 +12: ldub [%o2 + 3], %g3 + sll %g7, 8, %g7 + or %g1, %g2, %g1 + or %g7, %g3, %g7 + or %g1, %g7, %g7 +13: ldub [%o2 + 4], %g1 + st %g7, [%o0] +14: ldub [%o2 + 5], %g2 + sll %g1, 24, %g1 +15: ldub [%o2 + 6], %g7 + sll %g2, 16, %g2 +16: ldub [%o2 + 7], %g3 + sll %g7, 8, %g7 + or %g1, %g2, %g1 + or %g7, %g3, %g7 + or %g1, %g7, %g7 + st %g7, [%o0 + 4] +0: retl + mov 0, %o0 + + .section __ex_table,#alloc + .word 4b, retl_efault + .word 5b, retl_efault + .word 6b, retl_efault + .word 7b, retl_efault + .word 8b, retl_efault + .word 9b, retl_efault + .word 10b, retl_efault + .word 11b, retl_efault + .word 12b, retl_efault + .word 13b, retl_efault + .word 14b, retl_efault + .word 15b, retl_efault + .word 16b, retl_efault + .previous diff --git a/arch/sparc/kernel/unaligned.c b/arch/sparc/kernel/unaligned.c index a6330fbc9dd..33857be1666 100644 --- a/arch/sparc/kernel/unaligned.c +++ b/arch/sparc/kernel/unaligned.c @@ -175,157 +175,31 @@ static void unaligned_panic(char *str) panic(str); } -#define do_integer_load(dest_reg, size, saddr, is_signed, errh) ({ \ -__asm__ __volatile__ ( \ - "cmp %1, 8\n\t" \ - "be 9f\n\t" \ - " cmp %1, 4\n\t" \ - "be 6f\n" \ -"4:\t" " ldub [%2], %%l1\n" \ -"5:\t" "ldub [%2 + 1], %%l2\n\t" \ - "sll %%l1, 8, %%l1\n\t" \ - "tst %3\n\t" \ - "be 3f\n\t" \ - " add %%l1, %%l2, %%l1\n\t" \ - "sll %%l1, 16, %%l1\n\t" \ - "sra %%l1, 16, %%l1\n" \ -"3:\t" "b 0f\n\t" \ - " st %%l1, [%0]\n" \ -"6:\t" "ldub [%2 + 1], %%l2\n\t" \ - "sll %%l1, 24, %%l1\n" \ -"7:\t" "ldub [%2 + 2], %%g7\n\t" \ - "sll %%l2, 16, %%l2\n" \ -"8:\t" "ldub [%2 + 3], %%g1\n\t" \ - "sll %%g7, 8, %%g7\n\t" \ - "or %%l1, %%l2, %%l1\n\t" \ - "or %%g7, %%g1, %%g7\n\t" \ - "or %%l1, %%g7, %%l1\n\t" \ - "b 0f\n\t" \ - " st %%l1, [%0]\n" \ -"9:\t" "ldub [%2], %%l1\n" \ -"10:\t" "ldub [%2 + 1], %%l2\n\t" \ - "sll %%l1, 24, %%l1\n" \ -"11:\t" "ldub [%2 + 2], %%g7\n\t" \ - "sll %%l2, 16, %%l2\n" \ -"12:\t" "ldub [%2 + 3], %%g1\n\t" \ - "sll %%g7, 8, %%g7\n\t" \ - "or %%l1, %%l2, %%l1\n\t" \ - "or %%g7, %%g1, %%g7\n\t" \ - "or %%l1, %%g7, %%g7\n" \ -"13:\t" "ldub [%2 + 4], %%l1\n\t" \ - "st %%g7, [%0]\n" \ -"14:\t" "ldub [%2 + 5], %%l2\n\t" \ - "sll %%l1, 24, %%l1\n" \ -"15:\t" "ldub [%2 + 6], %%g7\n\t" \ - "sll %%l2, 16, %%l2\n" \ -"16:\t" "ldub [%2 + 7], %%g1\n\t" \ - "sll %%g7, 8, %%g7\n\t" \ - "or %%l1, %%l2, %%l1\n\t" \ - "or %%g7, %%g1, %%g7\n\t" \ - "or %%l1, %%g7, %%g7\n\t" \ - "st %%g7, [%0 + 4]\n" \ -"0:\n\n\t" \ - ".section __ex_table,#alloc\n\t" \ - ".word 4b, " #errh "\n\t" \ - ".word 5b, " #errh "\n\t" \ - ".word 6b, " #errh "\n\t" \ - ".word 7b, " #errh "\n\t" \ - ".word 8b, " #errh "\n\t" \ - ".word 9b, " #errh "\n\t" \ - ".word 10b, " #errh "\n\t" \ - ".word 11b, " #errh "\n\t" \ - ".word 12b, " #errh "\n\t" \ - ".word 13b, " #errh "\n\t" \ - ".word 14b, " #errh "\n\t" \ - ".word 15b, " #errh "\n\t" \ - ".word 16b, " #errh "\n\n\t" \ - ".previous\n\t" \ - : : "r" (dest_reg), "r" (size), "r" (saddr), "r" (is_signed) \ - : "l1", "l2", "g7", "g1", "cc"); \ -}) - -#define store_common(dst_addr, size, src_val, errh) ({ \ -__asm__ __volatile__ ( \ - "ld [%2], %%l1\n" \ - "cmp %1, 2\n\t" \ - "be 2f\n\t" \ - " cmp %1, 4\n\t" \ - "be 1f\n\t" \ - " srl %%l1, 24, %%l2\n\t" \ - "srl %%l1, 16, %%g7\n" \ -"4:\t" "stb %%l2, [%0]\n\t" \ - "srl %%l1, 8, %%l2\n" \ -"5:\t" "stb %%g7, [%0 + 1]\n\t" \ - "ld [%2 + 4], %%g7\n" \ -"6:\t" "stb %%l2, [%0 + 2]\n\t" \ - "srl %%g7, 24, %%l2\n" \ -"7:\t" "stb %%l1, [%0 + 3]\n\t" \ - "srl %%g7, 16, %%l1\n" \ -"8:\t" "stb %%l2, [%0 + 4]\n\t" \ - "srl %%g7, 8, %%l2\n" \ -"9:\t" "stb %%l1, [%0 + 5]\n" \ -"10:\t" "stb %%l2, [%0 + 6]\n\t" \ - "b 0f\n" \ -"11:\t" " stb %%g7, [%0 + 7]\n" \ -"1:\t" "srl %%l1, 16, %%g7\n" \ -"12:\t" "stb %%l2, [%0]\n\t" \ - "srl %%l1, 8, %%l2\n" \ -"13:\t" "stb %%g7, [%0 + 1]\n" \ -"14:\t" "stb %%l2, [%0 + 2]\n\t" \ - "b 0f\n" \ -"15:\t" " stb %%l1, [%0 + 3]\n" \ -"2:\t" "srl %%l1, 8, %%l2\n" \ -"16:\t" "stb %%l2, [%0]\n" \ -"17:\t" "stb %%l1, [%0 + 1]\n" \ -"0:\n\n\t" \ - ".section __ex_table,#alloc\n\t" \ - ".word 4b, " #errh "\n\t" \ - ".word 5b, " #errh "\n\t" \ - ".word 6b, " #errh "\n\t" \ - ".word 7b, " #errh "\n\t" \ - ".word 8b, " #errh "\n\t" \ - ".word 9b, " #errh "\n\t" \ - ".word 10b, " #errh "\n\t" \ - ".word 11b, " #errh "\n\t" \ - ".word 12b, " #errh "\n\t" \ - ".word 13b, " #errh "\n\t" \ - ".word 14b, " #errh "\n\t" \ - ".word 15b, " #errh "\n\t" \ - ".word 16b, " #errh "\n\t" \ - ".word 17b, " #errh "\n\n\t" \ - ".previous\n\t" \ - : : "r" (dst_addr), "r" (size), "r" (src_val) \ - : "l1", "l2", "g7", "g1", "cc"); \ -}) - -#define do_integer_store(reg_num, size, dst_addr, regs, errh) ({ \ - unsigned long *src_val; \ - static unsigned long zero[2] = { 0, }; \ - \ - if (reg_num) src_val = fetch_reg_addr(reg_num, regs); \ - else { \ - src_val = &zero[0]; \ - if (size == 8) \ - zero[1] = fetch_reg(1, regs); \ - } \ - store_common(dst_addr, size, src_val, errh); \ -}) +/* una_asm.S */ +extern int do_int_load(unsigned long *dest_reg, int size, + unsigned long *saddr, int is_signed); +extern int __do_int_store(unsigned long *dst_addr, int size, + unsigned long *src_val); + +static int do_int_store(int reg_num, int size, unsigned long *dst_addr, + struct pt_regs *regs) +{ + unsigned long zero[2] = { 0, 0 }; + unsigned long *src_val; + + if (reg_num) + src_val = fetch_reg_addr(reg_num, regs); + else { + src_val = &zero[0]; + if (size == 8) + zero[1] = fetch_reg(1, regs); + } + return __do_int_store(dst_addr, size, src_val); +} extern void smp_capture(void); extern void smp_release(void); -#define do_atomic(srcdest_reg, mem, errh) ({ \ - unsigned long flags, tmp; \ - \ - smp_capture(); \ - local_irq_save(flags); \ - tmp = *srcdest_reg; \ - do_integer_load(srcdest_reg, 4, mem, 0, errh); \ - store_common(mem, 4, &tmp, errh); \ - local_irq_restore(flags); \ - smp_release(); \ -}) - static inline void advance(struct pt_regs *regs) { regs->pc = regs->npc; @@ -342,9 +216,7 @@ static inline int ok_for_kernel(unsigned int insn) return !floating_point_load_or_store_p(insn); } -void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) __asm__ ("kernel_mna_trap_fault"); - -void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) +static void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) { unsigned long g2 = regs->u_regs [UREG_G2]; unsigned long fixup = search_extables_range(regs->pc, &g2); @@ -379,48 +251,34 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) printk("Unsupported unaligned load/store trap for kernel at <%08lx>.\n", regs->pc); unaligned_panic("Wheee. Kernel does fpu/atomic unaligned load/store."); - - __asm__ __volatile__ ("\n" -"kernel_unaligned_trap_fault:\n\t" - "mov %0, %%o0\n\t" - "call kernel_mna_trap_fault\n\t" - " mov %1, %%o1\n\t" - : - : "r" (regs), "r" (insn) - : "o0", "o1", "o2", "o3", "o4", "o5", "o7", - "g1", "g2", "g3", "g4", "g5", "g7", "cc"); } else { unsigned long addr = compute_effective_address(regs, insn); + int err; #ifdef DEBUG_MNA printk("KMNA: pc=%08lx [dir=%s addr=%08lx size=%d] retpc[%08lx]\n", regs->pc, dirstrings[dir], addr, size, regs->u_regs[UREG_RETPC]); #endif - switch(dir) { + switch (dir) { case load: - do_integer_load(fetch_reg_addr(((insn>>25)&0x1f), regs), - size, (unsigned long *) addr, - decode_signedness(insn), - kernel_unaligned_trap_fault); + err = do_int_load(fetch_reg_addr(((insn>>25)&0x1f), + regs), + size, (unsigned long *) addr, + decode_signedness(insn)); break; case store: - do_integer_store(((insn>>25)&0x1f), size, - (unsigned long *) addr, regs, - kernel_unaligned_trap_fault); + err = do_int_store(((insn>>25)&0x1f), size, + (unsigned long *) addr, regs); break; -#if 0 /* unsupported */ - case both: - do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs), - (unsigned long *) addr, - kernel_unaligned_trap_fault); - break; -#endif default: panic("Impossible kernel unaligned trap."); /* Not reached... */ } - advance(regs); + if (err) + kernel_mna_trap_fault(regs, insn); + else + advance(regs); } } @@ -459,9 +317,7 @@ static inline int ok_for_user(struct pt_regs *regs, unsigned int insn, return 0; } -void user_mna_trap_fault(struct pt_regs *regs, unsigned int insn) __asm__ ("user_mna_trap_fault"); - -void user_mna_trap_fault(struct pt_regs *regs, unsigned int insn) +static void user_mna_trap_fault(struct pt_regs *regs, unsigned int insn) { siginfo_t info; @@ -485,7 +341,7 @@ asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn) if(!ok_for_user(regs, insn, dir)) { goto kill_user; } else { - int size = decode_access_size(insn); + int err, size = decode_access_size(insn); unsigned long addr; if(floating_point_load_or_store_p(insn)) { @@ -496,48 +352,34 @@ asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn) addr = compute_effective_address(regs, insn); switch(dir) { case load: - do_integer_load(fetch_reg_addr(((insn>>25)&0x1f), regs), - size, (unsigned long *) addr, - decode_signedness(insn), - user_unaligned_trap_fault); + err = do_int_load(fetch_reg_addr(((insn>>25)&0x1f), + regs), + size, (unsigned long *) addr, + decode_signedness(insn)); break; case store: - do_integer_store(((insn>>25)&0x1f), size, - (unsigned long *) addr, regs, - user_unaligned_trap_fault); + err = do_int_store(((insn>>25)&0x1f), size, + (unsigned long *) addr, regs); break; case both: -#if 0 /* unsupported */ - do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs), - (unsigned long *) addr, - user_unaligned_trap_fault); -#else /* * This was supported in 2.4. However, we question * the value of SWAP instruction across word boundaries. */ printk("Unaligned SWAP unsupported.\n"); - goto kill_user; -#endif + err = -EFAULT; break; default: unaligned_panic("Impossible user unaligned trap."); - - __asm__ __volatile__ ("\n" -"user_unaligned_trap_fault:\n\t" - "mov %0, %%o0\n\t" - "call user_mna_trap_fault\n\t" - " mov %1, %%o1\n\t" - : - : "r" (regs), "r" (insn) - : "o0", "o1", "o2", "o3", "o4", "o5", "o7", - "g1", "g2", "g3", "g4", "g5", "g7", "cc"); goto out; } - advance(regs); + if (err) + goto kill_user; + else + advance(regs); goto out; } -- GitLab From 7ad8b3d30ecae325fcccbf86f34ce3af716b4f95 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Wed, 6 Feb 2008 12:11:17 -0800 Subject: [PATCH 316/923] ocfs2: Enable localalloc for local mounts Commit 2fbe8d1ebe004425b4f7b8bba345623d2280be82 disabled localalloc for local mounts. This caused issues as ocfs2 uses localalloc to provide write locality. This patch enables localalloc for local mounts. Signed-off-by: Sunil Mushran Signed-off-by: Mark Fasheh --- fs/ocfs2/localalloc.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index add1ffdc5c6..b1004b01a5f 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -120,9 +120,6 @@ int ocfs2_load_local_alloc(struct ocfs2_super *osb) mlog_entry_void(); - if (ocfs2_mount_local(osb)) - goto bail; - if (osb->local_alloc_size == 0) goto bail; -- GitLab From 1044e401af9a309637828aa3cc8f3b6409fcbf4e Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Thu, 28 Feb 2008 17:16:03 -0800 Subject: [PATCH 317/923] ocfs2: Fix writeout in ocfs2_data_convert_worker() Commit f1f540688eae66c274ff1c1133b5d9c687b28f58 "optimized" ocfs2_data_convert_worker() to "only do work for regular files". Unfortunately, I left out a '!', which casued it to *skip* regular files. This was hidden from testing until recently because the default data journaling mode (data=ordered) doesn't exercise this code. Signed-off-by: Mark Fasheh Signed-off-by: Joel Becker --- fs/ocfs2/dlmglue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 351130c9b73..f4b3dab8699 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -3042,7 +3042,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres, inode = ocfs2_lock_res_inode(lockres); mapping = inode->i_mapping; - if (S_ISREG(inode->i_mode)) + if (!S_ISREG(inode->i_mode)) goto out; /* -- GitLab From 0dd3256e04c452396c9d22943e4a18e02f4dbdf4 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Wed, 13 Feb 2008 00:06:18 +0100 Subject: [PATCH 318/923] [PATCH] ocfs2: le*_add_cpu conversion replace all: little_endian_variable = cpu_to_leX(leX_to_cpu(little_endian_variable) + expression_in_cpu_byteorder); with: leX_add_cpu(&little_endian_variable, expression_in_cpu_byteorder); generated with semantic patch Signed-off-by: Marcin Slusarz Signed-off-by: Mark Fasheh --- fs/ocfs2/dir.c | 5 ++--- fs/ocfs2/localalloc.c | 3 +-- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index e280833ceb9..8a187584808 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -390,9 +390,8 @@ static int __ocfs2_delete_entry(handle_t *handle, struct inode *dir, goto bail; } if (pde) - pde->rec_len = - cpu_to_le16(le16_to_cpu(pde->rec_len) + - le16_to_cpu(de->rec_len)); + le16_add_cpu(&pde->rec_len, + le16_to_cpu(de->rec_len)); else de->inode = 0; dir->i_version++; diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index b1004b01a5f..ab83fd56242 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -585,8 +585,7 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb, while(bits_wanted--) ocfs2_set_bit(start++, bitmap); - alloc->id1.bitmap1.i_used = cpu_to_le32(*num_bits + - le32_to_cpu(alloc->id1.bitmap1.i_used)); + le32_add_cpu(&alloc->id1.bitmap1.i_used, *num_bits); status = ocfs2_journal_dirty(handle, osb->local_alloc_bh); if (status < 0) { -- GitLab From 006000566d4e95b8d1924addfb41094acf0d5ec2 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 29 Jan 2008 00:11:41 +0200 Subject: [PATCH 319/923] [2.6 patch] fs/ocfs2/: possible cleanups This patch contains the following cleanups that are now possible: - make the following needlessly global functions static: - dlmglue.c:ocfs2_process_blocked_lock() - heartbeat.c:ocfs2_node_map_init() - #if 0 the following unused global function plus support functions: - heartbeat.c:ocfs2_node_map_is_only() Signed-off-by: Adrian Bunk Signed-off-by: Mark Fasheh --- fs/ocfs2/dlmglue.c | 4 ++-- fs/ocfs2/dlmglue.h | 2 -- fs/ocfs2/heartbeat.c | 26 +++++++++++++------------- fs/ocfs2/heartbeat.h | 5 ----- 4 files changed, 15 insertions(+), 22 deletions(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index f4b3dab8699..d43efdc1275 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -3219,8 +3219,8 @@ static int ocfs2_dentry_convert_worker(struct ocfs2_lock_res *lockres, return UNBLOCK_CONTINUE_POST; } -void ocfs2_process_blocked_lock(struct ocfs2_super *osb, - struct ocfs2_lock_res *lockres) +static void ocfs2_process_blocked_lock(struct ocfs2_super *osb, + struct ocfs2_lock_res *lockres) { int status; struct ocfs2_unblock_ctl ctl = {0, 0,}; diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h index 1d5b0699d0a..e3cf902404b 100644 --- a/fs/ocfs2/dlmglue.h +++ b/fs/ocfs2/dlmglue.h @@ -109,8 +109,6 @@ void ocfs2_simple_drop_lockres(struct ocfs2_super *osb, struct ocfs2_lock_res *lockres); /* for the downconvert thread */ -void ocfs2_process_blocked_lock(struct ocfs2_super *osb, - struct ocfs2_lock_res *lockres); void ocfs2_wake_downconvert_thread(struct ocfs2_super *osb); struct ocfs2_dlm_debug *ocfs2_new_dlm_debug(void); diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c index c0efd9489fe..0758daf64da 100644 --- a/fs/ocfs2/heartbeat.c +++ b/fs/ocfs2/heartbeat.c @@ -49,10 +49,15 @@ static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map, static inline void __ocfs2_node_map_clear_bit(struct ocfs2_node_map *map, int bit); static inline int __ocfs2_node_map_is_empty(struct ocfs2_node_map *map); -static void __ocfs2_node_map_dup(struct ocfs2_node_map *target, - struct ocfs2_node_map *from); -static void __ocfs2_node_map_set(struct ocfs2_node_map *target, - struct ocfs2_node_map *from); + +/* special case -1 for now + * TODO: should *really* make sure the calling func never passes -1!! */ +static void ocfs2_node_map_init(struct ocfs2_node_map *map) +{ + map->num_nodes = OCFS2_NODE_MAP_MAX_NODES; + memset(map->map, 0, BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES) * + sizeof(unsigned long)); +} void ocfs2_init_node_maps(struct ocfs2_super *osb) { @@ -136,15 +141,6 @@ void ocfs2_stop_heartbeat(struct ocfs2_super *osb) mlog_errno(ret); } -/* special case -1 for now - * TODO: should *really* make sure the calling func never passes -1!! */ -void ocfs2_node_map_init(struct ocfs2_node_map *map) -{ - map->num_nodes = OCFS2_NODE_MAP_MAX_NODES; - memset(map->map, 0, BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES) * - sizeof(unsigned long)); -} - static inline void __ocfs2_node_map_set_bit(struct ocfs2_node_map *map, int bit) { @@ -216,6 +212,8 @@ int ocfs2_node_map_is_empty(struct ocfs2_super *osb, return ret; } +#if 0 + static void __ocfs2_node_map_dup(struct ocfs2_node_map *target, struct ocfs2_node_map *from) { @@ -254,6 +252,8 @@ static void __ocfs2_node_map_set(struct ocfs2_node_map *target, target->map[i] = from->map[i]; } +#endif /* 0 */ + /* Returns whether the recovery bit was actually set - it may not be * if a node is still marked as needing recovery */ int ocfs2_recovery_map_set(struct ocfs2_super *osb, diff --git a/fs/ocfs2/heartbeat.h b/fs/ocfs2/heartbeat.h index 56859211888..eac63aed761 100644 --- a/fs/ocfs2/heartbeat.h +++ b/fs/ocfs2/heartbeat.h @@ -33,7 +33,6 @@ void ocfs2_stop_heartbeat(struct ocfs2_super *osb); /* node map functions - used to keep track of mounted and in-recovery * nodes. */ -void ocfs2_node_map_init(struct ocfs2_node_map *map); int ocfs2_node_map_is_empty(struct ocfs2_super *osb, struct ocfs2_node_map *map); void ocfs2_node_map_set_bit(struct ocfs2_super *osb, @@ -57,9 +56,5 @@ int ocfs2_recovery_map_set(struct ocfs2_super *osb, int num); void ocfs2_recovery_map_clear(struct ocfs2_super *osb, int num); -/* returns 1 if bit is the only bit set in target, 0 otherwise */ -int ocfs2_node_map_is_only(struct ocfs2_super *osb, - struct ocfs2_node_map *target, - int bit); #endif /* OCFS2_HEARTBEAT_H */ -- GitLab From 200bfae37a15e50e0f9aa5683958bdfc3fd55e05 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sun, 17 Feb 2008 10:20:38 +0200 Subject: [PATCH 320/923] [2.6 patch] make ocfs2_downconvert_thread() static This patch makes the needlessly global ocfs2_downconvert_thread() static. Signed-off-by: Adrian Bunk Signed-off-by: Mark Fasheh --- fs/ocfs2/dlmglue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index d43efdc1275..f7794306b2b 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -3356,7 +3356,7 @@ static int ocfs2_downconvert_thread_should_wake(struct ocfs2_super *osb) return should_wake; } -int ocfs2_downconvert_thread(void *arg) +static int ocfs2_downconvert_thread(void *arg) { int status = 0; struct ocfs2_super *osb = arg; -- GitLab From 05488bbebe3deedbc5d58a1832f563ff96bc2ef6 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sun, 17 Feb 2008 10:20:41 +0200 Subject: [PATCH 321/923] [2.6 patch] ocfs2: make dlm_do_assert_master() static This patch makes the needlessly global dlm_do_assert_master() static. Signed-off-by: Adrian Bunk Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmmaster.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index a54d33d95ad..c92d1b19fc0 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -1695,9 +1695,9 @@ send_response: * can periodically run all locks owned by this node * and re-assert across the cluster... */ -int dlm_do_assert_master(struct dlm_ctxt *dlm, - struct dlm_lock_resource *res, - void *nodemap, u32 flags) +static int dlm_do_assert_master(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res, + void *nodemap, u32 flags) { struct dlm_assert_master assert; int to, tmpret; -- GitLab From 86c838b03daf35e2af6555842d04fe09a89f8d93 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 26 Feb 2008 21:45:56 +0100 Subject: [PATCH 322/923] [PATCH] fs/ocfs2/aops.c: Correct use of ! and & In commit e6bafba5b4765a5a252f1b8d31cbf6d2459da337, a bug was fixed that involved converting !x & y to !(x & y). The code below shows the same pattern, and thus should perhaps be fixed in the same way. This is not tested and clearly changes the semantics, so it is only something to consider. Signed-off-by: Julia Lawall Signed-off-by: Mark Fasheh --- fs/ocfs2/aops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 82243127eeb..90383ed6100 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -257,7 +257,7 @@ static int ocfs2_readpage_inline(struct inode *inode, struct page *page) struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); BUG_ON(!PageLocked(page)); - BUG_ON(!OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL); + BUG_ON(!(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL)); ret = ocfs2_read_block(osb, OCFS2_I(inode)->ip_blkno, &di_bh, OCFS2_BH_CACHED, inode); -- GitLab From 2f775dbaa541d6bc0cccf20aab95f7a0930ef7e9 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Thu, 6 Mar 2008 16:04:58 -0700 Subject: [PATCH 323/923] [Blackfin] arch: to kill syscalls missing warning by adding new timerfd syscalls Signed-off-by: Bryan Wu --- arch/blackfin/mach-common/entry.S | 5 ++++- include/asm-blackfin/unistd.h | 6 ++++-- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index 2cbb7a0bc38..cee54cebbc6 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -1369,7 +1369,7 @@ ENTRY(_sys_call_table) .long _sys_epoll_pwait .long _sys_utimensat .long _sys_signalfd - .long _sys_ni_syscall + .long _sys_timerfd_create .long _sys_eventfd /* 350 */ .long _sys_pread64 .long _sys_pwrite64 @@ -1378,6 +1378,9 @@ ENTRY(_sys_call_table) .long _sys_get_robust_list /* 355 */ .long _sys_fallocate .long _sys_semtimedop + .long _sys_timerfd_settime + .long _sys_timerfd_gettime + .rept NR_syscalls-(.-_sys_call_table)/4 .long _sys_ni_syscall .endr diff --git a/include/asm-blackfin/unistd.h b/include/asm-blackfin/unistd.h index e98167358d2..c18a399f6e3 100644 --- a/include/asm-blackfin/unistd.h +++ b/include/asm-blackfin/unistd.h @@ -361,7 +361,7 @@ #define __NR_epoll_pwait 346 #define __NR_utimensat 347 #define __NR_signalfd 348 -#define __NR_timerfd 349 +#define __NR_timerfd_create 349 #define __NR_eventfd 350 #define __NR_pread64 351 #define __NR_pwrite64 352 @@ -370,8 +370,10 @@ #define __NR_get_robust_list 355 #define __NR_fallocate 356 #define __NR_semtimedop 357 +#define __NR_timerfd_settime 358 +#define __NR_timerfd_gettime 359 -#define __NR_syscall 358 +#define __NR_syscall 360 #define NR_syscalls __NR_syscall /* Old optional stuff no one actually uses */ -- GitLab From 3d7e6cf8f5837c6dace759734c987e03021a4015 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 3 Mar 2008 17:40:28 -0700 Subject: [PATCH 324/923] [Blackfin] arch: fix bug - allow SDH driver to be used as module Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/mach-bf548/boards/ezkit.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c index a0950c1fd80..40846aa034c 100644 --- a/arch/blackfin/mach-bf548/boards/ezkit.c +++ b/arch/blackfin/mach-bf548/boards/ezkit.c @@ -323,7 +323,7 @@ static struct platform_device bf5xx_nand_device = { }; #endif -#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN) +#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE) static struct platform_device bf54x_sdh_device = { .name = "bfin-sdh", .id = 0, @@ -636,7 +636,7 @@ static struct platform_device *ezkit_devices[] __initdata = { &bf5xx_nand_device, #endif -#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN) +#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE) &bf54x_sdh_device, #endif -- GitLab From 11b0be7c2c2c142acf73f4efd136a0de7a90ecab Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 3 Mar 2008 17:44:14 -0700 Subject: [PATCH 325/923] [Blackfin] arch: fix atomic and32/xor32 comments and ENDPROC markings Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/kernel/fixed_code.S | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/blackfin/kernel/fixed_code.S b/arch/blackfin/kernel/fixed_code.S index 90262691b11..5ed47228a39 100644 --- a/arch/blackfin/kernel/fixed_code.S +++ b/arch/blackfin/kernel/fixed_code.S @@ -101,9 +101,9 @@ ENDPROC (_atomic_ior32) .align 16 /* - * Atomic ior, 32 bit. + * Atomic and, 32 bit. * Inputs: P0: memory address to use - * R0: value to ior + * R0: value to and * Outputs: R0: new contents of the memory address. * R1: previous contents of the memory address. */ @@ -112,13 +112,13 @@ ENTRY(_atomic_and32) R0 = R1 & R0; [P0] = R0; rts; -ENDPROC (_atomic_ior32) +ENDPROC (_atomic_and32) .align 16 /* - * Atomic ior, 32 bit. + * Atomic xor, 32 bit. * Inputs: P0: memory address to use - * R0: value to ior + * R0: value to xor * Outputs: R0: new contents of the memory address. * R1: previous contents of the memory address. */ @@ -127,7 +127,7 @@ ENTRY(_atomic_xor32) R0 = R1 ^ R0; [P0] = R0; rts; -ENDPROC (_atomic_ior32) +ENDPROC (_atomic_xor32) .align 16 /* -- GitLab From fc398769ac5cbfdf4dc16a7ba657b284abcc92f5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?S=2E=C3=87a=C4=9Flar=20Onur?= Date: Tue, 12 Feb 2008 13:25:06 +0200 Subject: [PATCH 326/923] UBI: silence warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit drivers/mtd/ubi/vmt.c: In function `ubi_create_volume': drivers/mtd/ubi/vmt.c:379: warning: statement with no effect Signed-off-by: S.ÇaÄŸlar Onur Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/vmt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index a3ca2257e60..5be58d85c63 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -376,7 +376,9 @@ out_sysfs: get_device(&vol->dev); volume_sysfs_close(vol); out_gluebi: - ubi_destroy_gluebi(vol); + if (ubi_destroy_gluebi(vol)) + dbg_err("cannot destroy gluebi for volume %d:%d", + ubi->ubi_num, vol_id); out_cdev: cdev_del(&vol->cdev); out_mapping: -- GitLab From 19cd7b7de1804a50264dfd5c6ba3c6d332362a77 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Tue, 12 Feb 2008 16:32:35 +0200 Subject: [PATCH 327/923] UBI: fix error message Make it print "UBI error: cannot attach mtd4" instead of "UBI error: cannot attach 4" Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/build.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 6ac81e35355..27596046297 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -1000,8 +1000,8 @@ static int __init ubi_init(void) mutex_unlock(&ubi_devices_mutex); if (err < 0) { put_mtd_device(mtd); - printk(KERN_ERR "UBI error: cannot attach %s\n", - p->name); + printk(KERN_ERR "UBI error: cannot attach mtd%d\n", + mtd->index); goto out_detach; } } -- GitLab From 8eee9f100b1cc3d1b0a701a8626c54422af3c987 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Fri, 15 Feb 2008 10:47:51 +0200 Subject: [PATCH 328/923] UBI: fix sparse errors in ubi.h In C, signed 1-bit bitfields can only take the values 0 and -1, only 0 and 1 are ever assigned in current code. Make them unsigned bitfields. Fixes the (repeated) sparse errors: drivers/mtd/ubi/ubi.h:220:15: error: dubious one-bit signed bitfield drivers/mtd/ubi/ubi.h:221:17: error: dubious one-bit signed bitfield drivers/mtd/ubi/ubi.h:222:18: error: dubious one-bit signed bitfield drivers/mtd/ubi/ubi.h:223:16: error: dubious one-bit signed bitfield drivers/mtd/ubi/ubi.h:224:20: error: dubious one-bit signed bitfield Signed-off-by: Harvey Harrison Cc: Artem Bityutskiy Signed-off-by: Andrew Morton Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/ubi.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index 45771061526..a548c1d28fa 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -217,11 +217,11 @@ struct ubi_volume { void *upd_buf; int *eba_tbl; - int checked:1; - int corrupted:1; - int upd_marker:1; - int updating:1; - int changing_leb:1; + unsigned int checked:1; + unsigned int corrupted:1; + unsigned int upd_marker:1; + unsigned int updating:1; + unsigned int changing_leb:1; #ifdef CONFIG_MTD_UBI_GLUEBI /* -- GitLab From f7f0283776b6fe33f87f6a2ef15b1feb49ef6dac Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 3 Mar 2008 20:07:52 +0200 Subject: [PATCH 329/923] UBI: mtd/ubi/vtbl.c: fix memory leak This patch fixes a memory leak introduced by commit 4ccf8cffa963c7b5bdc6d455ea9417084ee49aa8 and spotted by the Coverity checker. Signed-off-by: Adrian Bunk Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/vtbl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c index 56fc3fbce83..af36b12be27 100644 --- a/drivers/mtd/ubi/vtbl.c +++ b/drivers/mtd/ubi/vtbl.c @@ -519,6 +519,7 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si, if (ubi->autoresize_vol_id != -1) { ubi_err("more then one auto-resize volume (%d " "and %d)", ubi->autoresize_vol_id, i); + kfree(vol); return -EINVAL; } -- GitLab From 5d87a052c7e5f245bbb3018721b4b0afe0afc252 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 20 Feb 2008 09:01:22 +0100 Subject: [PATCH 330/923] block: fix kernel-docbook parameters and files kernel-doc for block/: - add missing parameters - fix one function's parameter list (remove blank line) - add 2 source files to docbook for non-exported kernel-doc functions Signed-off-by: Randy Dunlap Signed-off-by: Jens Axboe --- Documentation/DocBook/kernel-api.tmpl | 2 ++ block/blk-core.c | 2 ++ block/blk-settings.c | 1 - 3 files changed, 4 insertions(+), 1 deletion(-) diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl index f31601e8bd8..dc0f30c3e57 100644 --- a/Documentation/DocBook/kernel-api.tmpl +++ b/Documentation/DocBook/kernel-api.tmpl @@ -361,12 +361,14 @@ X!Edrivers/pnp/system.c Block Devices !Eblock/blk-core.c +!Iblock/blk-core.c !Eblock/blk-map.c !Iblock/blk-sysfs.c !Eblock/blk-settings.c !Eblock/blk-exec.c !Eblock/blk-barrier.c !Eblock/blk-tag.c +!Iblock/blk-tag.c diff --git a/block/blk-core.c b/block/blk-core.c index 775c8516abf..2d7e3a2f56c 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1768,6 +1768,7 @@ static inline void __end_request(struct request *rq, int uptodate, /** * blk_rq_bytes - Returns bytes left to complete in the entire request + * @rq: the request being processed **/ unsigned int blk_rq_bytes(struct request *rq) { @@ -1780,6 +1781,7 @@ EXPORT_SYMBOL_GPL(blk_rq_bytes); /** * blk_rq_cur_bytes - Returns bytes left to complete in the current segment + * @rq: the request being processed **/ unsigned int blk_rq_cur_bytes(struct request *rq) { diff --git a/block/blk-settings.c b/block/blk-settings.c index 9a8ffdd0ce3..da923fed1f2 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -294,7 +294,6 @@ EXPORT_SYMBOL(blk_queue_stack_limits); /** * blk_queue_dma_drain - Set up a drain buffer for excess dma. - * * @q: the request queue for the device * @dma_drain_needed: fn which returns non-zero if drain is necessary * @buf: physically contiguous buffer -- GitLab From 02cf01aea5af7a4d1a38045712fe11bffcc206b0 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 20 Feb 2008 10:34:51 +0100 Subject: [PATCH 331/923] splice: only return -EAGAIN if there's hope of more data sys_tee() currently is a bit eager in returning -EAGAIN, it may do so even if we don't have a chance of anymore data becoming available. So improve the logic and only return -EAGAIN if we have an attached writer to the input pipe. Reported by Johann Felix Soden and Patrick McManus . Tested-by: Johann Felix Soden Signed-off-by: Jens Axboe --- fs/splice.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/fs/splice.c b/fs/splice.c index 9b559ee711a..0670c915cd3 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1669,6 +1669,13 @@ static int link_pipe(struct pipe_inode_info *ipipe, i++; } while (len); + /* + * return EAGAIN if we have the potential of some data in the + * future, otherwise just return 0 + */ + if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK)) + ret = -EAGAIN; + inode_double_unlock(ipipe->inode, opipe->inode); /* @@ -1709,11 +1716,8 @@ static long do_tee(struct file *in, struct file *out, size_t len, ret = link_ipipe_prep(ipipe, flags); if (!ret) { ret = link_opipe_prep(opipe, flags); - if (!ret) { + if (!ret) ret = link_pipe(ipipe, opipe, len, flags); - if (!ret && (flags & SPLICE_F_NONBLOCK)) - ret = -EAGAIN; - } } } -- GitLab From 89b6e743788516491846724d7ef89bcac7ac9c99 Mon Sep 17 00:00:00 2001 From: Mike Miller Date: Thu, 21 Feb 2008 08:54:03 +0100 Subject: [PATCH 332/923] resubmit: cciss: procfs updates to display info about many volumes This patch allows us to display information about all of the logical volumes configured on a particular controller without stepping on memory even when there are many volumes (128 or more) configured. Please consider this for inclusion. Signed-off-by: Mike Miller Signed-off-by: Jens Axboe --- drivers/block/cciss.c | 253 +++++++++++++++++++++++-------------- drivers/block/cciss_scsi.c | 10 +- 2 files changed, 160 insertions(+), 103 deletions(-) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 9715be3f248..f1e7390683f 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include @@ -174,8 +175,6 @@ static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size, static void fail_all_cmds(unsigned long ctlr); #ifdef CONFIG_PROC_FS -static int cciss_proc_get_info(char *buffer, char **start, off_t offset, - int length, int *eof, void *data); static void cciss_procinit(int i); #else static void cciss_procinit(int i) @@ -240,24 +239,46 @@ static inline CommandList_struct *removeQ(CommandList_struct **Qptr, */ #define ENG_GIG 1000000000 #define ENG_GIG_FACTOR (ENG_GIG/512) +#define ENGAGE_SCSI "engage scsi" static const char *raid_label[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG", "UNKNOWN" }; static struct proc_dir_entry *proc_cciss; -static int cciss_proc_get_info(char *buffer, char **start, off_t offset, - int length, int *eof, void *data) +static void cciss_seq_show_header(struct seq_file *seq) { - off_t pos = 0; - off_t len = 0; - int size, i, ctlr; - ctlr_info_t *h = (ctlr_info_t *) data; - drive_info_struct *drv; - unsigned long flags; - sector_t vol_sz, vol_sz_frac; + ctlr_info_t *h = seq->private; + + seq_printf(seq, "%s: HP %s Controller\n" + "Board ID: 0x%08lx\n" + "Firmware Version: %c%c%c%c\n" + "IRQ: %d\n" + "Logical drives: %d\n" + "Current Q depth: %d\n" + "Current # commands on controller: %d\n" + "Max Q depth since init: %d\n" + "Max # commands on controller since init: %d\n" + "Max SG entries since init: %d\n", + h->devname, + h->product_name, + (unsigned long)h->board_id, + h->firm_ver[0], h->firm_ver[1], h->firm_ver[2], + h->firm_ver[3], (unsigned int)h->intr[SIMPLE_MODE_INT], + h->num_luns, + h->Qdepth, h->commands_outstanding, + h->maxQsinceinit, h->max_outstanding, h->maxSG); - ctlr = h->ctlr; +#ifdef CONFIG_CISS_SCSI_TAPE + cciss_seq_tape_report(seq, h->ctlr); +#endif /* CONFIG_CISS_SCSI_TAPE */ +} + +static void *cciss_seq_start(struct seq_file *seq, loff_t *pos) +{ + ctlr_info_t *h = seq->private; + unsigned ctlr = h->ctlr; + unsigned long flags; /* prevent displaying bogus info during configuration * or deconfiguration of a logical volume @@ -265,115 +286,155 @@ static int cciss_proc_get_info(char *buffer, char **start, off_t offset, spin_lock_irqsave(CCISS_LOCK(ctlr), flags); if (h->busy_configuring) { spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); - return -EBUSY; + return ERR_PTR(-EBUSY); } h->busy_configuring = 1; spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); - size = sprintf(buffer, "%s: HP %s Controller\n" - "Board ID: 0x%08lx\n" - "Firmware Version: %c%c%c%c\n" - "IRQ: %d\n" - "Logical drives: %d\n" - "Max sectors: %d\n" - "Current Q depth: %d\n" - "Current # commands on controller: %d\n" - "Max Q depth since init: %d\n" - "Max # commands on controller since init: %d\n" - "Max SG entries since init: %d\n\n", - h->devname, - h->product_name, - (unsigned long)h->board_id, - h->firm_ver[0], h->firm_ver[1], h->firm_ver[2], - h->firm_ver[3], (unsigned int)h->intr[SIMPLE_MODE_INT], - h->num_luns, - h->cciss_max_sectors, - h->Qdepth, h->commands_outstanding, - h->maxQsinceinit, h->max_outstanding, h->maxSG); - - pos += size; - len += size; - cciss_proc_tape_report(ctlr, buffer, &pos, &len); - for (i = 0; i <= h->highest_lun; i++) { - - drv = &h->drv[i]; - if (drv->heads == 0) - continue; + if (*pos == 0) + cciss_seq_show_header(seq); - vol_sz = drv->nr_blocks; - vol_sz_frac = sector_div(vol_sz, ENG_GIG_FACTOR); - vol_sz_frac *= 100; - sector_div(vol_sz_frac, ENG_GIG_FACTOR); + return pos; +} + +static int cciss_seq_show(struct seq_file *seq, void *v) +{ + sector_t vol_sz, vol_sz_frac; + ctlr_info_t *h = seq->private; + unsigned ctlr = h->ctlr; + loff_t *pos = v; + drive_info_struct *drv = &h->drv[*pos]; + + if (*pos > h->highest_lun) + return 0; + + if (drv->heads == 0) + return 0; + + vol_sz = drv->nr_blocks; + vol_sz_frac = sector_div(vol_sz, ENG_GIG_FACTOR); + vol_sz_frac *= 100; + sector_div(vol_sz_frac, ENG_GIG_FACTOR); + + if (drv->raid_level > 5) + drv->raid_level = RAID_UNKNOWN; + seq_printf(seq, "cciss/c%dd%d:" + "\t%4u.%02uGB\tRAID %s\n", + ctlr, (int) *pos, (int)vol_sz, (int)vol_sz_frac, + raid_label[drv->raid_level]); + return 0; +} + +static void *cciss_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + ctlr_info_t *h = seq->private; + + if (*pos > h->highest_lun) + return NULL; + *pos += 1; + + return pos; +} + +static void cciss_seq_stop(struct seq_file *seq, void *v) +{ + ctlr_info_t *h = seq->private; + + /* Only reset h->busy_configuring if we succeeded in setting + * it during cciss_seq_start. */ + if (v == ERR_PTR(-EBUSY)) + return; - if (drv->raid_level > 5) - drv->raid_level = RAID_UNKNOWN; - size = sprintf(buffer + len, "cciss/c%dd%d:" - "\t%4u.%02uGB\tRAID %s\n", - ctlr, i, (int)vol_sz, (int)vol_sz_frac, - raid_label[drv->raid_level]); - pos += size; - len += size; - } - - *eof = 1; - *start = buffer + offset; - len -= offset; - if (len > length) - len = length; h->busy_configuring = 0; - return len; } -static int -cciss_proc_write(struct file *file, const char __user *buffer, - unsigned long count, void *data) +static struct seq_operations cciss_seq_ops = { + .start = cciss_seq_start, + .show = cciss_seq_show, + .next = cciss_seq_next, + .stop = cciss_seq_stop, +}; + +static int cciss_seq_open(struct inode *inode, struct file *file) { - unsigned char cmd[80]; - int len; -#ifdef CONFIG_CISS_SCSI_TAPE - ctlr_info_t *h = (ctlr_info_t *) data; - int rc; + int ret = seq_open(file, &cciss_seq_ops); + struct seq_file *seq = file->private_data; + + if (!ret) + seq->private = PDE(inode)->data; + + return ret; +} + +static ssize_t +cciss_proc_write(struct file *file, const char __user *buf, + size_t length, loff_t *ppos) +{ + int err; + char *buffer; + +#ifndef CONFIG_CISS_SCSI_TAPE + return -EINVAL; #endif - if (count > sizeof(cmd) - 1) + if (!buf || length > PAGE_SIZE - 1) return -EINVAL; - if (copy_from_user(cmd, buffer, count)) - return -EFAULT; - cmd[count] = '\0'; - len = strlen(cmd); // above 3 lines ensure safety - if (len && cmd[len - 1] == '\n') - cmd[--len] = '\0'; -# ifdef CONFIG_CISS_SCSI_TAPE - if (strcmp("engage scsi", cmd) == 0) { + + buffer = (char *)__get_free_page(GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + err = -EFAULT; + if (copy_from_user(buffer, buf, length)) + goto out; + buffer[length] = '\0'; + +#ifdef CONFIG_CISS_SCSI_TAPE + if (strncmp(ENGAGE_SCSI, buffer, sizeof ENGAGE_SCSI - 1) == 0) { + struct seq_file *seq = file->private_data; + ctlr_info_t *h = seq->private; + int rc; + rc = cciss_engage_scsi(h->ctlr); if (rc != 0) - return -rc; - return count; - } + err = -rc; + else + err = length; + } else +#endif /* CONFIG_CISS_SCSI_TAPE */ + err = -EINVAL; /* might be nice to have "disengage" too, but it's not safely possible. (only 1 module use count, lock issues.) */ -# endif - return -EINVAL; + +out: + free_page((unsigned long)buffer); + return err; } -/* - * Get us a file in /proc/cciss that says something about each controller. - * Create /proc/cciss if it doesn't exist yet. - */ +static struct file_operations cciss_proc_fops = { + .owner = THIS_MODULE, + .open = cciss_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, + .write = cciss_proc_write, +}; + static void __devinit cciss_procinit(int i) { struct proc_dir_entry *pde; - if (proc_cciss == NULL) { + if (proc_cciss == NULL) proc_cciss = proc_mkdir("cciss", proc_root_driver); - if (!proc_cciss) - return; - } + if (!proc_cciss) + return; + pde = proc_create(hba[i]->devname, S_IWUSR | S_IRUSR | S_IRGRP | + S_IROTH, proc_cciss, + &cciss_proc_fops); + if (!pde) + return; - pde = create_proc_read_entry(hba[i]->devname, - S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH, - proc_cciss, cciss_proc_get_info, hba[i]); - pde->write_proc = cciss_proc_write; + pde->data = hba[i]; } #endif /* CONFIG_PROC_FS */ diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index 55178e9973a..45ac09300eb 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -1404,21 +1404,18 @@ cciss_engage_scsi(int ctlr) } static void -cciss_proc_tape_report(int ctlr, unsigned char *buffer, off_t *pos, off_t *len) +cciss_seq_tape_report(struct seq_file *seq, int ctlr) { unsigned long flags; - int size; - - *pos = *pos -1; *len = *len - 1; // cut off the last trailing newline CPQ_TAPE_LOCK(ctlr, flags); - size = sprintf(buffer + *len, + seq_printf(seq, "Sequential access devices: %d\n\n", ccissscsi[ctlr].ndevices); CPQ_TAPE_UNLOCK(ctlr, flags); - *pos += size; *len += size; } + /* Need at least one of these error handlers to keep ../scsi/hosts.c from * complaining. Doing a host- or bus-reset can't do anything good here. * Despite what it might say in scsi_error.c, there may well be commands @@ -1498,6 +1495,5 @@ static int cciss_eh_abort_handler(struct scsi_cmnd *scsicmd) #define cciss_scsi_setup(cntl_num) #define cciss_unregister_scsi(ctlr) #define cciss_register_scsi(ctlr) -#define cciss_proc_tape_report(ctlr, buffer, pos, len) #endif /* CONFIG_CISS_SCSI_TAPE */ -- GitLab From 7a85f8896f4b4a4a0249563b92af9e3161a6b467 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 4 Mar 2008 11:17:11 +0100 Subject: [PATCH 333/923] block: restore the meaning of rq->data_len to the true data length The meaning of rq->data_len was changed to the length of an allocated buffer from the true data length. It breaks SG_IO friends and bsg. This patch restores the meaning of rq->data_len to the true data length and adds rq->extra_len to store an extended length (due to drain buffer and padding). This patch also removes the code to update bio in blk_rq_map_user introduced by the commit 40b01b9bbdf51ae543a04744283bf2d56c4a6afa. The commit adjusts bio according to memory alignment (queue_dma_alignment). However, memory alignment is NOT padding alignment. This adjustment also breaks SG_IO friends and bsg. Padding alignment needs to be fixed in a proper way (by a separate patch). Signed-off-by: FUJITA Tomonori Signed-off-by: Jens Axboe --- block/blk-core.c | 3 +-- block/blk-map.c | 6 +----- block/blk-merge.c | 2 +- block/bsg.c | 8 ++++---- block/scsi_ioctl.c | 4 ++-- drivers/ata/libata-scsi.c | 6 +++--- include/linux/blkdev.h | 2 +- 7 files changed, 13 insertions(+), 18 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 2d7e3a2f56c..a248cf1c98d 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -127,7 +127,6 @@ void rq_init(struct request_queue *q, struct request *rq) rq->nr_hw_segments = 0; rq->ioprio = 0; rq->special = NULL; - rq->raw_data_len = 0; rq->buffer = NULL; rq->tag = -1; rq->errors = 0; @@ -135,6 +134,7 @@ void rq_init(struct request_queue *q, struct request *rq) rq->cmd_len = 0; memset(rq->cmd, 0, sizeof(rq->cmd)); rq->data_len = 0; + rq->extra_len = 0; rq->sense_len = 0; rq->data = NULL; rq->sense = NULL; @@ -2018,7 +2018,6 @@ void blk_rq_bio_prep(struct request_queue *q, struct request *rq, rq->hard_cur_sectors = rq->current_nr_sectors; rq->hard_nr_sectors = rq->nr_sectors = bio_sectors(bio); rq->buffer = bio_data(bio); - rq->raw_data_len = bio->bi_size; rq->data_len = bio->bi_size; rq->bio = rq->biotail = bio; diff --git a/block/blk-map.c b/block/blk-map.c index 09f7fd0bcb7..f5598322954 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -19,7 +19,6 @@ int blk_rq_append_bio(struct request_queue *q, struct request *rq, rq->biotail->bi_next = bio; rq->biotail = bio; - rq->raw_data_len += bio->bi_size; rq->data_len += bio->bi_size; } return 0; @@ -151,11 +150,8 @@ int blk_rq_map_user(struct request_queue *q, struct request *rq, */ if (len & queue_dma_alignment(q)) { unsigned int pad_len = (queue_dma_alignment(q) & ~len) + 1; - struct bio *bio = rq->biotail; - bio->bi_io_vec[bio->bi_vcnt - 1].bv_len += pad_len; - bio->bi_size += pad_len; - rq->data_len += pad_len; + rq->extra_len += pad_len; } rq->buffer = rq->data = NULL; diff --git a/block/blk-merge.c b/block/blk-merge.c index 7506c4fe026..0f58616bcd7 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -231,7 +231,7 @@ new_segment: ((unsigned long)q->dma_drain_buffer) & (PAGE_SIZE - 1)); nsegs++; - rq->data_len += q->dma_drain_size; + rq->extra_len += q->dma_drain_size; } if (sg) diff --git a/block/bsg.c b/block/bsg.c index 7f3c09549e4..8917c5174dc 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -437,14 +437,14 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr, } if (rq->next_rq) { - hdr->dout_resid = rq->raw_data_len; - hdr->din_resid = rq->next_rq->raw_data_len; + hdr->dout_resid = rq->data_len; + hdr->din_resid = rq->next_rq->data_len; blk_rq_unmap_user(bidi_bio); blk_put_request(rq->next_rq); } else if (rq_data_dir(rq) == READ) - hdr->din_resid = rq->raw_data_len; + hdr->din_resid = rq->data_len; else - hdr->dout_resid = rq->raw_data_len; + hdr->dout_resid = rq->data_len; /* * If the request generated a negative error number, return it diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index e993cac4911..a2c3a936ebf 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -266,7 +266,7 @@ static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr, hdr->info = 0; if (hdr->masked_status || hdr->host_status || hdr->driver_status) hdr->info |= SG_INFO_CHECK; - hdr->resid = rq->raw_data_len; + hdr->resid = rq->data_len; hdr->sb_len_wr = 0; if (rq->sense_len && hdr->sbp) { @@ -528,8 +528,8 @@ static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk, rq = blk_get_request(q, WRITE, __GFP_WAIT); rq->cmd_type = REQ_TYPE_BLOCK_PC; rq->data = NULL; - rq->raw_data_len = 0; rq->data_len = 0; + rq->extra_len = 0; rq->timeout = BLK_DEFAULT_SG_TIMEOUT; memset(rq->cmd, 0, sizeof(rq->cmd)); rq->cmd[0] = cmd; diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 7b1f1ee8131..fe47922dd69 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -2538,7 +2538,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc) } qc->tf.command = ATA_CMD_PACKET; - qc->nbytes = scsi_bufflen(scmd); + qc->nbytes = scsi_bufflen(scmd) + scmd->request->extra_len; /* check whether ATAPI DMA is safe */ if (!using_pio && ata_check_atapi_dma(qc)) @@ -2549,7 +2549,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc) * want to set it properly, and for DMA where it is * effectively meaningless. */ - nbytes = min(scmd->request->raw_data_len, (unsigned int)63 * 1024); + nbytes = min(scmd->request->data_len, (unsigned int)63 * 1024); /* Most ATAPI devices which honor transfer chunk size don't * behave according to the spec when odd chunk size which @@ -2875,7 +2875,7 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc) * TODO: find out if we need to do more here to * cover scatter/gather case. */ - qc->nbytes = scsi_bufflen(scmd); + qc->nbytes = scsi_bufflen(scmd) + scmd->request->extra_len; /* request result TF and be quiet about device error */ qc->flags |= ATA_QCFLAG_RESULT_TF | ATA_QCFLAG_QUIET; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 6fe67d1939c..b72526c13ca 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -216,8 +216,8 @@ struct request { unsigned int cmd_len; unsigned char cmd[BLK_MAX_CDB]; - unsigned int raw_data_len; unsigned int data_len; + unsigned int extra_len; /* length of alignment and padding */ unsigned int sense_len; void *data; void *sense; -- GitLab From e3790c7d42a545e8fe8b38b513613ca96687b670 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 4 Mar 2008 11:18:17 +0100 Subject: [PATCH 334/923] block: separate out padding from alignment Block layer alignment was used for two different purposes - memory alignment and padding. This causes problems in lower layers because drivers which only require memory alignment ends up with adjusted rq->data_len. Separate out padding such that padding occurs iff driver explicitly requests it. Tomo: restorethe code to update bio in blk_rq_map_user introduced by the commit 40b01b9bbdf51ae543a04744283bf2d56c4a6afa according to padding alignment. Signed-off-by: Tejun Heo Signed-off-by: FUJITA Tomonori Signed-off-by: Jens Axboe --- block/blk-map.c | 20 +++++++++++++------- block/blk-settings.c | 17 +++++++++++++++++ drivers/ata/libata-scsi.c | 3 ++- include/linux/blkdev.h | 2 ++ 4 files changed, 34 insertions(+), 8 deletions(-) diff --git a/block/blk-map.c b/block/blk-map.c index f5598322954..4e17dfd0035 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -43,6 +43,7 @@ static int __blk_rq_map_user(struct request_queue *q, struct request *rq, void __user *ubuf, unsigned int len) { unsigned long uaddr; + unsigned int alignment; struct bio *bio, *orig_bio; int reading, ret; @@ -53,8 +54,8 @@ static int __blk_rq_map_user(struct request_queue *q, struct request *rq, * direct dma. else, set up kernel bounce buffers */ uaddr = (unsigned long) ubuf; - if (!(uaddr & queue_dma_alignment(q)) && - !(len & queue_dma_alignment(q))) + alignment = queue_dma_alignment(q) | q->dma_pad_mask; + if (!(uaddr & alignment) && !(len & alignment)) bio = bio_map_user(q, NULL, uaddr, len, reading); else bio = bio_copy_user(q, uaddr, len, reading); @@ -141,15 +142,20 @@ int blk_rq_map_user(struct request_queue *q, struct request *rq, /* * __blk_rq_map_user() copies the buffers if starting address - * or length isn't aligned. As the copied buffer is always - * page aligned, we know that there's enough room for padding. - * Extend the last bio and update rq->data_len accordingly. + * or length isn't aligned to dma_pad_mask. As the copied + * buffer is always page aligned, we know that there's enough + * room for padding. Extend the last bio and update + * rq->data_len accordingly. * * On unmap, bio_uncopy_user() will use unmodified * bio_map_data pointed to by bio->bi_private. */ - if (len & queue_dma_alignment(q)) { - unsigned int pad_len = (queue_dma_alignment(q) & ~len) + 1; + if (len & q->dma_pad_mask) { + unsigned int pad_len = (q->dma_pad_mask & ~len) + 1; + struct bio *bio = rq->biotail; + + bio->bi_io_vec[bio->bi_vcnt - 1].bv_len += pad_len; + bio->bi_size += pad_len; rq->extra_len += pad_len; } diff --git a/block/blk-settings.c b/block/blk-settings.c index da923fed1f2..a9f37f530b1 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -292,6 +292,23 @@ void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b) } EXPORT_SYMBOL(blk_queue_stack_limits); +/** + * blk_queue_dma_pad - set pad mask + * @q: the request queue for the device + * @mask: pad mask + * + * Set pad mask. Direct IO requests are padded to the mask specified. + * + * Appending pad buffer to a request modifies ->data_len such that it + * includes the pad buffer. The original requested data length can be + * obtained using blk_rq_raw_data_len(). + **/ +void blk_queue_dma_pad(struct request_queue *q, unsigned int mask) +{ + q->dma_pad_mask = mask; +} +EXPORT_SYMBOL(blk_queue_dma_pad); + /** * blk_queue_dma_drain - Set up a drain buffer for excess dma. * @q: the request queue for the device diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index fe47922dd69..8f0e8f2bc62 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -862,9 +862,10 @@ static int ata_scsi_dev_config(struct scsi_device *sdev, struct request_queue *q = sdev->request_queue; void *buf; - /* set the min alignment */ + /* set the min alignment and padding */ blk_queue_update_dma_alignment(sdev->request_queue, ATA_DMA_PAD_SZ - 1); + blk_queue_dma_pad(sdev->request_queue, ATA_DMA_PAD_SZ - 1); /* configure draining */ buf = kmalloc(ATAPI_MAX_DRAIN, q->bounce_gfp | GFP_KERNEL); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index b72526c13ca..6f79d40dd3c 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -362,6 +362,7 @@ struct request_queue unsigned long seg_boundary_mask; void *dma_drain_buffer; unsigned int dma_drain_size; + unsigned int dma_pad_mask; unsigned int dma_alignment; struct blk_queue_tag *queue_tags; @@ -701,6 +702,7 @@ extern void blk_queue_max_hw_segments(struct request_queue *, unsigned short); extern void blk_queue_max_segment_size(struct request_queue *, unsigned int); extern void blk_queue_hardsect_size(struct request_queue *, unsigned short); extern void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b); +extern void blk_queue_dma_pad(struct request_queue *, unsigned int); extern int blk_queue_dma_drain(struct request_queue *q, dma_drain_needed_fn *dma_drain_needed, void *buf, unsigned int size); -- GitLab From 419c434c35614609fd0c79d335c134bf4b88b30b Mon Sep 17 00:00:00 2001 From: Yang Shi Date: Tue, 4 Mar 2008 11:20:51 +0100 Subject: [PATCH 335/923] Fix DMA access of block device in 64-bit kernel on some non-x86 systems with 4GB or upper 4GB memory For some non-x86 systems with 4GB or upper 4GB memory, we need increase the range of addresses that can be used for direct DMA in 64-bit kernel. Signed-off-by: Yang Shi Signed-off-by: Jens Axboe --- block/blk-settings.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-settings.c b/block/blk-settings.c index a9f37f530b1..18fab5193d8 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -140,7 +140,7 @@ void blk_queue_bounce_limit(struct request_queue *q, u64 dma_addr) /* Assume anything <= 4GB can be handled by IOMMU. Actually some IOMMUs can handle everything, but I don't know of a way to test this here. */ - if (b_pfn < (min_t(u64, 0xffffffff, BLK_BOUNCE_HIGH) >> PAGE_SHIFT)) + if (b_pfn <= (min_t(u64, 0xffffffff, BLK_BOUNCE_HIGH) >> PAGE_SHIFT)) dma = 1; q->bounce_pfn = max_low_pfn; #else -- GitLab From 278caf0120a77e4398762357a8cc522d094fe2f2 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 4 Mar 2008 11:23:44 +0100 Subject: [PATCH 336/923] block/blk-tag.c should #include "blk.h" Every file should include the headers containing the externs for its global functions (in this case for __blk_queue_free_tags()). Signed-off-by: Adrian Bunk Signed-off-by: Jens Axboe --- block/blk-tag.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block/blk-tag.c b/block/blk-tag.c index a8c37d4bbb3..4780a46ce23 100644 --- a/block/blk-tag.c +++ b/block/blk-tag.c @@ -6,6 +6,8 @@ #include #include +#include "blk.h" + /** * blk_queue_find_tag - find a request by its tag and queue * @q: The request queue for the device -- GitLab From ff88972c850ced92b9c4c7f538d85829c741eeb0 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 4 Mar 2008 11:23:45 +0100 Subject: [PATCH 337/923] proper prototype for blk_dev_init() This patch adds a proper prototye for blk_dev_init() in block/blk.h Signed-off-by: Adrian Bunk Signed-off-by: Jens Axboe --- block/blk.h | 2 ++ block/genhd.c | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/block/blk.h b/block/blk.h index ec898dd0c65..ec9120fb789 100644 --- a/block/blk.h +++ b/block/blk.h @@ -32,6 +32,8 @@ void blk_recalc_rq_sectors(struct request *rq, int nsect); void blk_queue_congestion_threshold(struct request_queue *q); +int blk_dev_init(void); + /* * Return the threshold (number of used requests) at which the queue is * considered to be congested. It include a little hysteresis to keep the diff --git a/block/genhd.c b/block/genhd.c index 53f2238e69c..abc6feddc8c 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -17,6 +17,8 @@ #include #include +#include "blk.h" + static DEFINE_MUTEX(block_class_lock); #ifndef CONFIG_SYSFS_DEPRECATED struct kobject *block_depr; @@ -346,8 +348,6 @@ const struct seq_operations partitions_op = { #endif -extern int blk_dev_init(void); - static struct kobject *base_probe(dev_t devt, int *part, void *data) { if (request_module("block-major-%d-%d", MAJOR(devt), MINOR(devt)) > 0) -- GitLab From 1826eadfc42839af7c1c5a1859510aff635d3fa1 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 4 Mar 2008 11:23:46 +0100 Subject: [PATCH 338/923] block/genhd.c: cleanups This patch contains the following cleanups: - make the needlessly global struct disk_type static - #if 0 the unused genhd_media_change_notify() Signed-off-by: Adrian Bunk Signed-off-by: Jens Axboe --- block/genhd.c | 6 +++++- include/linux/genhd.h | 2 -- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index abc6feddc8c..c44527d16c5 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -24,6 +24,8 @@ static DEFINE_MUTEX(block_class_lock); struct kobject *block_depr; #endif +static struct device_type disk_type; + /* * Can be deleted altogether. Later. * @@ -502,7 +504,7 @@ struct class block_class = { .name = "block", }; -struct device_type disk_type = { +static struct device_type disk_type = { .name = "disk", .groups = disk_attr_groups, .release = disk_release, @@ -632,12 +634,14 @@ static void media_change_notify_thread(struct work_struct *work) put_device(gd->driverfs_dev); } +#if 0 void genhd_media_change_notify(struct gendisk *disk) { get_device(disk->driverfs_dev); schedule_work(&disk->async_notify); } EXPORT_SYMBOL_GPL(genhd_media_change_notify); +#endif /* 0 */ dev_t blk_lookup_devt(const char *name) { diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 09a3b18918c..cd048e3cc96 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -18,7 +18,6 @@ #define dev_to_disk(device) container_of(device, struct gendisk, dev) #define dev_to_part(device) container_of(device, struct hd_struct, dev) -extern struct device_type disk_type; extern struct device_type part_type; extern struct kobject *block_depr; extern struct class block_class; @@ -556,7 +555,6 @@ extern struct gendisk *alloc_disk_node(int minors, int node_id); extern struct gendisk *alloc_disk(int minors); extern struct kobject *get_disk(struct gendisk *disk); extern void put_disk(struct gendisk *disk); -extern void genhd_media_change_notify(struct gendisk *disk); extern void blk_register_region(dev_t devt, unsigned long range, struct module *module, struct kobject *(*probe)(dev_t, int *, void *), -- GitLab From 9d7f1e6b9b2c2e4fe029ff35f4ca1e2879864208 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 4 Mar 2008 11:23:47 +0100 Subject: [PATCH 339/923] unexport blk_{get,put}_queue This patch removes the unused exports of blk_{get,put}_queue. Signed-off-by: Adrian Bunk Signed-off-by: Jens Axboe --- block/blk-core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index a248cf1c98d..2a438a93f72 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -424,7 +424,6 @@ void blk_put_queue(struct request_queue *q) { kobject_put(&q->kobj); } -EXPORT_SYMBOL(blk_put_queue); void blk_cleanup_queue(struct request_queue *q) { @@ -592,7 +591,6 @@ int blk_get_queue(struct request_queue *q) return 1; } -EXPORT_SYMBOL(blk_get_queue); static inline void blk_free_request(struct request_queue *q, struct request *rq) { -- GitLab From bec419404afe8b0d60000118ca90ada4c69a3a6d Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 4 Mar 2008 11:23:48 +0100 Subject: [PATCH 340/923] unexport blk_rq_map_user_iov This patch removes the unused export of blk_rq_map_user_iov. Signed-off-by: Adrian Bunk Signed-off-by: Jens Axboe --- block/blk-map.c | 1 - 1 file changed, 1 deletion(-) diff --git a/block/blk-map.c b/block/blk-map.c index 4e17dfd0035..0760963546d 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -217,7 +217,6 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq, rq->buffer = rq->data = NULL; return 0; } -EXPORT_SYMBOL(blk_rq_map_user_iov); /** * blk_rq_unmap_user - unmap a request with user data -- GitLab From a0db701a6bf767320e4471bd55e70702d230f6fb Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 4 Mar 2008 11:23:50 +0100 Subject: [PATCH 341/923] block/genhd.c: proper externs This patch adds proper externs for two structs in include/linux/genhd.h Signed-off-by: Adrian Bunk Signed-off-by: Jens Axboe --- fs/proc/proc_misc.c | 3 +-- include/linux/genhd.h | 3 +++ 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 468805d40e2..2d563979cb0 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include #include @@ -377,7 +378,6 @@ static int stram_read_proc(char *page, char **start, off_t off, #endif #ifdef CONFIG_BLOCK -extern const struct seq_operations partitions_op; static int partitions_open(struct inode *inode, struct file *file) { return seq_open(file, &partitions_op); @@ -389,7 +389,6 @@ static const struct file_operations proc_partitions_operations = { .release = seq_release, }; -extern const struct seq_operations diskstats_op; static int diskstats_open(struct inode *inode, struct file *file) { return seq_open(file, &diskstats_op); diff --git a/include/linux/genhd.h b/include/linux/genhd.h index cd048e3cc96..32c2ac49a07 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -22,6 +22,9 @@ extern struct device_type part_type; extern struct kobject *block_depr; extern struct class block_class; +extern const struct seq_operations partitions_op; +extern const struct seq_operations diskstats_op; + enum { /* These three have identical behaviour; use the second one if DOS FDISK gets confused about extended/logical partitions starting past cylinder 1023. */ -- GitLab From ecb80c6a490863af569853eea2a925f97e9e856a Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 4 Mar 2008 11:23:51 +0100 Subject: [PATCH 342/923] make cdrom.c:check_for_audio_disc() static This patch makes the needlessly global check_for_audio_disc() static. Signed-off-by: Adrian Bunk Signed-off-by: Jens Axboe --- drivers/cdrom/cdrom.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index db259e60289..12f5baea439 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -1152,8 +1152,8 @@ clean_up_and_return: /* This code is similar to that in open_for_data. The routine is called whenever an audio play operation is requested. */ -int check_for_audio_disc(struct cdrom_device_info * cdi, - struct cdrom_device_ops * cdo) +static int check_for_audio_disc(struct cdrom_device_info * cdi, + struct cdrom_device_ops * cdo) { int ret; tracktype tracks; -- GitLab From 68d95b585f1b67b3c89ce0eb934e221ebeeb5c61 Mon Sep 17 00:00:00 2001 From: Mike Miller Date: Tue, 4 Mar 2008 11:25:15 +0100 Subject: [PATCH 343/923] cciss: remove READ_AHEAD define and use block layer defaults This patch removes the #define READ_AHEAD 1024 from the driver and uses the block layer defaults, instead. We have found that under certain workloads the setting can cause a disk connected to the e200 controller to go offline. If the disk hiccups the link may try to downshift but the controller is never notified that the link successfully completed the renegotiation. We've also found that performance using the block layer default of 32 pages was on par with the 1024 setting. We tried setting it to zero at one time based on info from our firmware guys but that killed performance. Turns out we were talking about 2 different read ahead settings. Please consider this for inclusion. Signed-off-by: Mike Miller Signed-off-by: Jens Axboe --- drivers/block/cciss.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index f1e7390683f..55bd35c0f08 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -132,7 +132,6 @@ static struct board_type products[] = { /*define how many times we will try a command because of bus resets */ #define MAX_CMD_RETRIES 3 -#define READ_AHEAD 1024 #define MAX_CTLR 32 /* Originally cciss driver only supports 8 major numbers */ @@ -1402,7 +1401,6 @@ geo_inq: disk->private_data = &h->drv[drv_index]; /* Set up queue information */ - disk->queue->backing_dev_info.ra_pages = READ_AHEAD; blk_queue_bounce_limit(disk->queue, hba[ctlr]->pdev->dma_mask); /* This is a hardware imposed limit. */ @@ -3495,7 +3493,6 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, } drv->queue = q; - q->backing_dev_info.ra_pages = READ_AHEAD; blk_queue_bounce_limit(q, hba[i]->pdev->dma_mask); /* This is a hardware imposed limit. */ -- GitLab From 448da4d262b5db90817ce853726ff4d9b0c2bf48 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Tue, 4 Mar 2008 11:30:18 +0100 Subject: [PATCH 344/923] block: remove extern on function definition Intoduced between 2.6.25-rc2 and -rc3 block/blk-settings.c:319:12: warning: function 'blk_queue_dma_drain' with external linkage has definition Signed-off-by: Harvey Harrison Signed-off-by: Jens Axboe --- block/blk-settings.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-settings.c b/block/blk-settings.c index 18fab5193d8..1344a0ea5cc 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -332,7 +332,7 @@ EXPORT_SYMBOL(blk_queue_dma_pad); * device can support otherwise there won't be room for the drain * buffer. */ -extern int blk_queue_dma_drain(struct request_queue *q, +int blk_queue_dma_drain(struct request_queue *q, dma_drain_needed_fn *dma_drain_needed, void *buf, unsigned int size) { -- GitLab From 56d94a37f63ad1c9da3bc8e903f79d0ee1e80170 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Tue, 4 Mar 2008 11:31:22 +0100 Subject: [PATCH 345/923] block: fix shadowed variable warning in blk-map.c Introduced between 2.6.25-rc2 and -rc3 block/blk-map.c:154:14: warning: symbol 'bio' shadows an earlier one block/blk-map.c:110:13: originally declared here Signed-off-by: Harvey Harrison Signed-off-by: Jens Axboe --- block/blk-map.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/block/blk-map.c b/block/blk-map.c index 0760963546d..c07d9c8317f 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -152,10 +152,10 @@ int blk_rq_map_user(struct request_queue *q, struct request *rq, */ if (len & q->dma_pad_mask) { unsigned int pad_len = (q->dma_pad_mask & ~len) + 1; - struct bio *bio = rq->biotail; + struct bio *tail = rq->biotail; - bio->bi_io_vec[bio->bi_vcnt - 1].bv_len += pad_len; - bio->bi_size += pad_len; + tail->bi_io_vec[tail->bi_vcnt - 1].bv_len += pad_len; + tail->bi_size += pad_len; rq->extra_len += pad_len; } -- GitLab From cc66b4512cae8df4ed1635483210aabf7690ec27 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 4 Mar 2008 11:47:46 +0100 Subject: [PATCH 346/923] block: fix blkdev_issue_flush() not detecting and passing EOPNOTSUPP back This is important to eg dm, that tries to decide whether to stop using barriers or not. Tested as working by Anders Henke Signed-off-by: Jens Axboe --- block/blk-barrier.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/block/blk-barrier.c b/block/blk-barrier.c index 6901eedeffc..55c5f1fc4f1 100644 --- a/block/blk-barrier.c +++ b/block/blk-barrier.c @@ -259,8 +259,11 @@ int blk_do_ordered(struct request_queue *q, struct request **rqp) static void bio_end_empty_barrier(struct bio *bio, int err) { - if (err) + if (err) { + if (err == -EOPNOTSUPP) + set_bit(BIO_EOPNOTSUPP, &bio->bi_flags); clear_bit(BIO_UPTODATE, &bio->bi_flags); + } complete(bio->bi_private); } @@ -309,7 +312,9 @@ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector) *error_sector = bio->bi_sector; ret = 0; - if (!bio_flagged(bio, BIO_UPTODATE)) + if (bio_flagged(bio, BIO_EOPNOTSUPP)) + ret = -EOPNOTSUPP; + else if (!bio_flagged(bio, BIO_UPTODATE)) ret = -EIO; bio_put(bio); -- GitLab From 72dc67a69690288538142df73a7e3ac66fea68dc Mon Sep 17 00:00:00 2001 From: Izik Eidus Date: Sun, 10 Feb 2008 18:04:15 +0200 Subject: [PATCH 347/923] KVM: remove the usage of the mmap_sem for the protection of the memory slots. This patch replaces the mmap_sem lock for the memory slots with a new kvm private lock, it is needed beacuse untill now there were cases where kvm accesses user memory while holding the mmap semaphore. Signed-off-by: Izik Eidus Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 24 +++++++++++--- arch/x86/kvm/paging_tmpl.h | 13 +++++--- arch/x86/kvm/vmx.c | 7 ++-- arch/x86/kvm/x86.c | 65 ++++++++++++++++++++++---------------- include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 5 +-- 6 files changed, 75 insertions(+), 40 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 8efdcdbebb0..26037106ad1 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -876,11 +876,18 @@ static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn) struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva) { + struct page *page; + gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva); if (gpa == UNMAPPED_GVA) return NULL; - return gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT); + + down_read(¤t->mm->mmap_sem); + page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT); + up_read(¤t->mm->mmap_sem); + + return page; } static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte, @@ -1020,15 +1027,18 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn) struct page *page; + down_read(&vcpu->kvm->slots_lock); + down_read(¤t->mm->mmap_sem); page = gfn_to_page(vcpu->kvm, gfn); + up_read(¤t->mm->mmap_sem); spin_lock(&vcpu->kvm->mmu_lock); kvm_mmu_free_some_pages(vcpu); r = __nonpaging_map(vcpu, v, write, gfn, page); spin_unlock(&vcpu->kvm->mmu_lock); - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); return r; } @@ -1362,6 +1372,7 @@ static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, gfn_t gfn; int r; u64 gpte = 0; + struct page *page; if (bytes != 4 && bytes != 8) return; @@ -1389,6 +1400,11 @@ static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, if (!is_present_pte(gpte)) return; gfn = (gpte & PT64_BASE_ADDR_MASK) >> PAGE_SHIFT; + + down_read(¤t->mm->mmap_sem); + page = gfn_to_page(vcpu->kvm, gfn); + up_read(¤t->mm->mmap_sem); + vcpu->arch.update_pte.gfn = gfn; vcpu->arch.update_pte.page = gfn_to_page(vcpu->kvm, gfn); } @@ -1496,9 +1512,9 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva) gpa_t gpa; int r; - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva); - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); spin_lock(&vcpu->kvm->mmu_lock); r = kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT); diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 03ba8608fe0..2009c6e9dc4 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -91,7 +91,10 @@ static bool FNAME(cmpxchg_gpte)(struct kvm *kvm, pt_element_t *table; struct page *page; + down_read(¤t->mm->mmap_sem); page = gfn_to_page(kvm, table_gfn); + up_read(¤t->mm->mmap_sem); + table = kmap_atomic(page, KM_USER0); ret = CMPXCHG(&table[index], orig_pte, new_pte); @@ -378,7 +381,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, if (r) return r; - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); /* * Look up the shadow pte for the faulting address. */ @@ -392,11 +395,13 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, pgprintk("%s: guest page fault\n", __FUNCTION__); inject_page_fault(vcpu, addr, walker.error_code); vcpu->arch.last_pt_write_count = 0; /* reset fork detector */ - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); return 0; } + down_read(¤t->mm->mmap_sem); page = gfn_to_page(vcpu->kvm, walker.gfn); + up_read(¤t->mm->mmap_sem); spin_lock(&vcpu->kvm->mmu_lock); kvm_mmu_free_some_pages(vcpu); @@ -413,14 +418,14 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, */ if (shadow_pte && is_io_pte(*shadow_pte)) { spin_unlock(&vcpu->kvm->mmu_lock); - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); return 1; } ++vcpu->stat.pf_fixed; kvm_mmu_audit(vcpu, "post page fault (fixed)"); spin_unlock(&vcpu->kvm->mmu_lock); - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); return write_pt; } diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index ad36447e696..86f5bf12183 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1477,7 +1477,7 @@ static int alloc_apic_access_page(struct kvm *kvm) struct kvm_userspace_memory_region kvm_userspace_mem; int r = 0; - down_write(¤t->mm->mmap_sem); + down_write(&kvm->slots_lock); if (kvm->arch.apic_access_page) goto out; kvm_userspace_mem.slot = APIC_ACCESS_PAGE_PRIVATE_MEMSLOT; @@ -1487,9 +1487,12 @@ static int alloc_apic_access_page(struct kvm *kvm) r = __kvm_set_memory_region(kvm, &kvm_userspace_mem, 0); if (r) goto out; + + down_read(¤t->mm->mmap_sem); kvm->arch.apic_access_page = gfn_to_page(kvm, 0xfee00); + up_read(¤t->mm->mmap_sem); out: - up_write(¤t->mm->mmap_sem); + up_write(&kvm->slots_lock); return r; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 338764fa539..6b01552bd1f 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -184,7 +184,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3) int ret; u64 pdpte[ARRAY_SIZE(vcpu->arch.pdptrs)]; - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); ret = kvm_read_guest_page(vcpu->kvm, pdpt_gfn, pdpte, offset * sizeof(u64), sizeof(pdpte)); if (ret < 0) { @@ -201,7 +201,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3) memcpy(vcpu->arch.pdptrs, pdpte, sizeof(vcpu->arch.pdptrs)); out: - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); return ret; } @@ -215,13 +215,13 @@ static bool pdptrs_changed(struct kvm_vcpu *vcpu) if (is_long_mode(vcpu) || !is_pae(vcpu)) return false; - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); r = kvm_read_guest(vcpu->kvm, vcpu->arch.cr3 & ~31u, pdpte, sizeof(pdpte)); if (r < 0) goto out; changed = memcmp(pdpte, vcpu->arch.pdptrs, sizeof(pdpte)) != 0; out: - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); return changed; } @@ -359,7 +359,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) */ } - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); /* * Does the new cr3 value map to physical memory? (Note, we * catch an invalid cr3 even in real-mode, because it would @@ -375,7 +375,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) vcpu->arch.cr3 = cr3; vcpu->arch.mmu.new_cr3(vcpu); } - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); } EXPORT_SYMBOL_GPL(set_cr3); @@ -1232,12 +1232,12 @@ static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm, if (kvm_nr_mmu_pages < KVM_MIN_ALLOC_MMU_PAGES) return -EINVAL; - down_write(¤t->mm->mmap_sem); + down_write(&kvm->slots_lock); kvm_mmu_change_mmu_pages(kvm, kvm_nr_mmu_pages); kvm->arch.n_requested_mmu_pages = kvm_nr_mmu_pages; - up_write(¤t->mm->mmap_sem); + up_write(&kvm->slots_lock); return 0; } @@ -1286,7 +1286,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm, < alias->target_phys_addr) goto out; - down_write(¤t->mm->mmap_sem); + down_write(&kvm->slots_lock); p = &kvm->arch.aliases[alias->slot]; p->base_gfn = alias->guest_phys_addr >> PAGE_SHIFT; @@ -1300,7 +1300,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm, kvm_mmu_zap_all(kvm); - up_write(¤t->mm->mmap_sem); + up_write(&kvm->slots_lock); return 0; @@ -1376,7 +1376,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot; int is_dirty = 0; - down_write(¤t->mm->mmap_sem); + down_write(&kvm->slots_lock); r = kvm_get_dirty_log(kvm, log, &is_dirty); if (r) @@ -1392,7 +1392,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, } r = 0; out: - up_write(¤t->mm->mmap_sem); + up_write(&kvm->slots_lock); return r; } @@ -1570,7 +1570,7 @@ int emulator_read_std(unsigned long addr, void *data = val; int r = X86EMUL_CONTINUE; - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); while (bytes) { gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr); unsigned offset = addr & (PAGE_SIZE-1); @@ -1592,7 +1592,7 @@ int emulator_read_std(unsigned long addr, addr += tocopy; } out: - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); return r; } EXPORT_SYMBOL_GPL(emulator_read_std); @@ -1611,9 +1611,9 @@ static int emulator_read_emulated(unsigned long addr, return X86EMUL_CONTINUE; } - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr); - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); /* For APIC access vmexit */ if ((gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE) @@ -1651,14 +1651,14 @@ static int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, { int ret; - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes); if (ret < 0) { - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); return 0; } kvm_mmu_pte_write(vcpu, gpa, val, bytes); - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); return 1; } @@ -1670,9 +1670,9 @@ static int emulator_write_emulated_onepage(unsigned long addr, struct kvm_io_device *mmio_dev; gpa_t gpa; - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr); - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); if (gpa == UNMAPPED_GVA) { kvm_inject_page_fault(vcpu, addr, 2); @@ -1749,7 +1749,7 @@ static int emulator_cmpxchg_emulated(unsigned long addr, char *kaddr; u64 val; - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr); if (gpa == UNMAPPED_GVA || @@ -1760,13 +1760,17 @@ static int emulator_cmpxchg_emulated(unsigned long addr, goto emul_write; val = *(u64 *)new; + + down_read(¤t->mm->mmap_sem); page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT); + up_read(¤t->mm->mmap_sem); + kaddr = kmap_atomic(page, KM_USER0); set_64bit((u64 *)(kaddr + offset_in_page(gpa)), val); kunmap_atomic(kaddr, KM_USER0); kvm_release_page_dirty(page); emul_write: - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); } #endif @@ -2159,10 +2163,10 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, kvm_x86_ops->skip_emulated_instruction(vcpu); for (i = 0; i < nr_pages; ++i) { - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); page = gva_to_page(vcpu, address + i * PAGE_SIZE); vcpu->arch.pio.guest_pages[i] = page; - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); if (!page) { kvm_inject_gp(vcpu, 0); free_pio_guest_pages(vcpu); @@ -2485,8 +2489,9 @@ static void vapic_enter(struct kvm_vcpu *vcpu) down_read(¤t->mm->mmap_sem); page = gfn_to_page(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT); - vcpu->arch.apic->vapic_page = page; up_read(¤t->mm->mmap_sem); + + vcpu->arch.apic->vapic_page = page; } static void vapic_exit(struct kvm_vcpu *vcpu) @@ -2959,9 +2964,9 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, gpa_t gpa; vcpu_load(vcpu); - down_read(¤t->mm->mmap_sem); + down_read(&vcpu->kvm->slots_lock); gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, vaddr); - up_read(¤t->mm->mmap_sem); + up_read(&vcpu->kvm->slots_lock); tr->physical_address = gpa; tr->valid = gpa != UNMAPPED_GVA; tr->writeable = 1; @@ -3234,11 +3239,13 @@ int kvm_arch_set_memory_region(struct kvm *kvm, */ if (!user_alloc) { if (npages && !old.rmap) { + down_write(¤t->mm->mmap_sem); memslot->userspace_addr = do_mmap(NULL, 0, npages * PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0); + up_write(¤t->mm->mmap_sem); if (IS_ERR((void *)memslot->userspace_addr)) return PTR_ERR((void *)memslot->userspace_addr); @@ -3246,8 +3253,10 @@ int kvm_arch_set_memory_region(struct kvm *kvm, if (!old.user_alloc && old.rmap) { int ret; + down_write(¤t->mm->mmap_sem); ret = do_munmap(current->mm, old.userspace_addr, old.npages * PAGE_SIZE); + up_write(¤t->mm->mmap_sem); if (ret < 0) printk(KERN_WARNING "kvm_vm_ioctl_set_memory_region: " diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index ea4764b0a2f..928b0d59e9b 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -107,6 +107,7 @@ struct kvm_memory_slot { struct kvm { struct mutex lock; /* protects the vcpus array and APIC accesses */ spinlock_t mmu_lock; + struct rw_semaphore slots_lock; struct mm_struct *mm; /* userspace tied to this vm */ int nmemslots; struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 32fbf800696..b2e12893e3f 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -169,6 +169,7 @@ static struct kvm *kvm_create_vm(void) kvm_io_bus_init(&kvm->pio_bus); mutex_init(&kvm->lock); kvm_io_bus_init(&kvm->mmio_bus); + init_rwsem(&kvm->slots_lock); spin_lock(&kvm_lock); list_add(&kvm->vm_list, &vm_list); spin_unlock(&kvm_lock); @@ -339,9 +340,9 @@ int kvm_set_memory_region(struct kvm *kvm, { int r; - down_write(¤t->mm->mmap_sem); + down_write(&kvm->slots_lock); r = __kvm_set_memory_region(kvm, mem, user_alloc); - up_write(¤t->mm->mmap_sem); + up_write(&kvm->slots_lock); return r; } EXPORT_SYMBOL_GPL(kvm_set_memory_region); -- GitLab From a2938c807024ba30191e3bd593430c0659d75717 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Wed, 13 Feb 2008 16:30:28 +0100 Subject: [PATCH 348/923] KVM: SVM: fix Windows XP 64 bit installation crash While installing Windows XP 64 bit wants to access the DEBUGCTL and the last branch record (LBR) MSRs. Don't allowing this in KVM causes the installation to crash. This patch allow the access to these MSRs and fixes the issue. Signed-off-by: Joerg Roedel Signed-off-by: Markus Rechberger Signed-off-by: Avi Kivity --- arch/x86/kvm/svm.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index d71daabbb51..1a582f1090e 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1100,6 +1100,24 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data) case MSR_IA32_SYSENTER_ESP: *data = svm->vmcb->save.sysenter_esp; break; + /* Nobody will change the following 5 values in the VMCB so + we can safely return them on rdmsr. They will always be 0 + until LBRV is implemented. */ + case MSR_IA32_DEBUGCTLMSR: + *data = svm->vmcb->save.dbgctl; + break; + case MSR_IA32_LASTBRANCHFROMIP: + *data = svm->vmcb->save.br_from; + break; + case MSR_IA32_LASTBRANCHTOIP: + *data = svm->vmcb->save.br_to; + break; + case MSR_IA32_LASTINTFROMIP: + *data = svm->vmcb->save.last_excp_from; + break; + case MSR_IA32_LASTINTTOIP: + *data = svm->vmcb->save.last_excp_to; + break; default: return kvm_get_msr_common(vcpu, ecx, data); } @@ -1160,6 +1178,10 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data) case MSR_IA32_SYSENTER_ESP: svm->vmcb->save.sysenter_esp = data; break; + case MSR_IA32_DEBUGCTLMSR: + pr_unimpl(vcpu, "%s: MSR_IA32_DEBUGCTLMSR 0x%llx, nop\n", + __FUNCTION__, data); + break; case MSR_K7_EVNTSEL0: case MSR_K7_EVNTSEL1: case MSR_K7_EVNTSEL2: -- GitLab From 5e4a0b3c1b899bb0ba28bde6edf95c5ddeb48b5c Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Thu, 14 Feb 2008 21:21:43 -0200 Subject: [PATCH 349/923] KVM: move alloc_apic_access_page() outside of non-preemptable region alloc_apic_access_page() can sleep, while vmx_vcpu_setup is called inside a non preemptable region. Move it after put_cpu(). Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/x86/kvm/vmx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 86f5bf12183..61c2a3a8d20 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1605,9 +1605,6 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx) vmcs_writel(CR0_GUEST_HOST_MASK, ~0UL); vmcs_writel(CR4_GUEST_HOST_MASK, KVM_GUEST_CR4_MASK); - if (vm_need_virtualize_apic_accesses(vmx->vcpu.kvm)) - if (alloc_apic_access_page(vmx->vcpu.kvm) != 0) - return -ENOMEM; return 0; } @@ -2537,6 +2534,9 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id) put_cpu(); if (err) goto free_vmcs; + if (vm_need_virtualize_apic_accesses(kvm)) + if (alloc_apic_access_page(kvm) != 0) + goto free_vmcs; return &vmx->vcpu; -- GitLab From 24993d53495d1f9b844f8eb3ebd1b9efd3521617 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Thu, 14 Feb 2008 21:25:39 -0200 Subject: [PATCH 350/923] KVM: make MMU_DEBUG compile again the cr3 variable is now inside the vcpu->arch structure. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 2 +- arch/x86/kvm/paging_tmpl.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 26037106ad1..194ece6974e 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1182,7 +1182,7 @@ void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu) static void paging_new_cr3(struct kvm_vcpu *vcpu) { - pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->cr3); + pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->arch.cr3); mmu_free_roots(vcpu); } diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 2009c6e9dc4..5588fa594b6 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -143,7 +143,7 @@ walk: } #endif ASSERT((!is_long_mode(vcpu) && is_pae(vcpu)) || - (vcpu->cr3 & CR3_NONPAE_RESERVED_BITS) == 0); + (vcpu->arch.cr3 & CR3_NONPAE_RESERVED_BITS) == 0); pt_access = ACC_ALL; -- GitLab From 0b975a3c2d53829fa978e18fabae7d99031f588f Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Sun, 24 Feb 2008 14:37:50 +0200 Subject: [PATCH 351/923] KVM: Avoid infinite-frequency local apic timer If the local apic initial count is zero, don't start a an hrtimer with infinite frequency, locking up the host. Signed-off-by: Avi Kivity --- arch/x86/kvm/lapic.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 2cbee9479ce..68a6b151193 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -647,6 +647,10 @@ static void start_apic_timer(struct kvm_lapic *apic) apic->timer.period = apic_get_reg(apic, APIC_TMICT) * APIC_BUS_CYCLE_NS * apic->timer.divide_count; atomic_set(&apic->timer.pending, 0); + + if (!apic->timer.period) + return; + hrtimer_start(&apic->timer.dev, ktime_add_ns(now, apic->timer.period), HRTIMER_MODE_ABS); -- GitLab From 8c35f237fb5664d30aa90448c3d6cea0cbb43f35 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Mon, 25 Feb 2008 10:28:31 +0200 Subject: [PATCH 352/923] KVM: Route irq 0 to vcpu 0 exclusively Some Linux versions allow the timer interrupt to be processed by more than one cpu, leading to hangs due to tsc instability. Work around the issue by only disaptching the interrupt to vcpu 0. Problem analyzed (and patch tested) by Sheng Yang. Signed-off-by: Avi Kivity --- virt/kvm/ioapic.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c index 317f8e211cd..4232fd75dd2 100644 --- a/virt/kvm/ioapic.c +++ b/virt/kvm/ioapic.c @@ -211,6 +211,10 @@ static void ioapic_deliver(struct kvm_ioapic *ioapic, int irq) case IOAPIC_LOWEST_PRIORITY: vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector, deliver_bitmask); +#ifdef CONFIG_X86 + if (irq == 0) + vcpu = ioapic->kvm->vcpus[0]; +#endif if (vcpu != NULL) ioapic_inj_irq(ioapic, vcpu, vector, trig_mode, delivery_mode); @@ -220,6 +224,10 @@ static void ioapic_deliver(struct kvm_ioapic *ioapic, int irq) deliver_bitmask, vector, IOAPIC_LOWEST_PRIORITY); break; case IOAPIC_FIXED: +#ifdef CONFIG_X86 + if (irq == 0) + deliver_bitmask = 1; +#endif for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) { if (!(deliver_bitmask & (1 << vcpu_id))) continue; -- GitLab From f7d9c7b7b902f9f532738d47593d9679b0b182d9 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 26 Feb 2008 22:12:10 +0200 Subject: [PATCH 353/923] KVM: MMU: Fix race when instantiating a shadow pte For improved concurrency, the guest walk is performed concurrently with other vcpus. This means that we need to revalidate the guest ptes once we have write-protected the guest page tables, at which point they can no longer be modified. The current code attempts to avoid this check if the shadow page table is not new, on the assumption that if it has existed before, the guest could not have modified the pte without the shadow lock. However the assumption is incorrect, as the racing vcpu could have modified the pte, then instantiated the shadow page, before our vcpu regains control: vcpu0 vcpu1 fault walk pte modify pte fault in same pagetable instantiate shadow page lookup shadow page conclude it is old instantiate spte based on stale guest pte We could do something clever with generation counters, but a test run by Marcelo suggests this is unnecessary and we can just do the revalidation unconditionally. The pte will be in the processor cache and the check can be quite fast. Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 12 ++++-------- arch/x86/kvm/paging_tmpl.h | 5 ++--- 2 files changed, 6 insertions(+), 11 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 194ece6974e..d8172aabc66 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -681,8 +681,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, unsigned level, int metaphysical, unsigned access, - u64 *parent_pte, - bool *new_page) + u64 *parent_pte) { union kvm_mmu_page_role role; unsigned index; @@ -722,8 +721,6 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, vcpu->arch.mmu.prefetch_page(vcpu, sp); if (!metaphysical) rmap_write_protect(vcpu->kvm, gfn); - if (new_page) - *new_page = 1; return sp; } @@ -1006,8 +1003,7 @@ static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, >> PAGE_SHIFT; new_table = kvm_mmu_get_page(vcpu, pseudo_gfn, v, level - 1, - 1, ACC_ALL, &table[index], - NULL); + 1, ACC_ALL, &table[index]); if (!new_table) { pgprintk("nonpaging_map: ENOMEM\n"); kvm_release_page_clean(page); @@ -1100,7 +1096,7 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu) ASSERT(!VALID_PAGE(root)); sp = kvm_mmu_get_page(vcpu, root_gfn, 0, - PT64_ROOT_LEVEL, 0, ACC_ALL, NULL, NULL); + PT64_ROOT_LEVEL, 0, ACC_ALL, NULL); root = __pa(sp->spt); ++sp->root_count; vcpu->arch.mmu.root_hpa = root; @@ -1121,7 +1117,7 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu) root_gfn = 0; sp = kvm_mmu_get_page(vcpu, root_gfn, i << 30, PT32_ROOT_LEVEL, !is_paging(vcpu), - ACC_ALL, NULL, NULL); + ACC_ALL, NULL); root = __pa(sp->spt); ++sp->root_count; vcpu->arch.mmu.pae_root[i] = root | PT_PRESENT_MASK; diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 5588fa594b6..ecc0856268c 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -300,7 +300,6 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, u64 shadow_pte; int metaphysical; gfn_t table_gfn; - bool new_page = 0; shadow_ent = ((u64 *)__va(shadow_addr)) + index; if (level == PT_PAGE_TABLE_LEVEL) @@ -322,8 +321,8 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, } shadow_page = kvm_mmu_get_page(vcpu, table_gfn, addr, level-1, metaphysical, access, - shadow_ent, &new_page); - if (new_page && !metaphysical) { + shadow_ent); + if (!metaphysical) { int r; pt_element_t curr_pte; r = kvm_read_guest_atomic(vcpu->kvm, -- GitLab From 33f9c505ed5c83bd8a07877e5b4628308f4cc099 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Wed, 27 Feb 2008 16:06:57 +0200 Subject: [PATCH 354/923] KVM: VMX: Avoid rearranging switched guest msrs while they are loaded KVM tries to run as much as possible with the guest msrs loaded instead of host msrs, since switching msrs is very expensive. It also tries to minimize the number of msrs switched according to the guest mode; for example, MSR_LSTAR is needed only by long mode guests. This optimization is done by setup_msrs(). However, we must not change which msrs are switched while we are running with guest msr state: - switch to guest msr state - call setup_msrs(), removing some msrs from the list - switch to host msr state, leaving a few guest msrs loaded An easy way to trigger this is to kexec an x86_64 linux guest. Early during setup, the guest will switch EFER to not include SCE. KVM will stop saving MSR_LSTAR, and on the next msr switch it will leave the guest LSTAR loaded. The next host syscall will end up in a random location in the kernel. Fix by reloading the host msrs before changing the msr list. Signed-off-by: Avi Kivity --- arch/x86/kvm/vmx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 61c2a3a8d20..94ea724638f 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -638,6 +638,7 @@ static void setup_msrs(struct vcpu_vmx *vmx) { int save_nmsrs; + vmx_load_host_state(vmx); save_nmsrs = 0; #ifdef CONFIG_X86_64 if (is_long_mode(&vmx->vcpu)) { -- GitLab From 1a4e3f89c6b2cbe0b26c08ec63a8c34156eaae04 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 20 Feb 2008 09:20:08 -0800 Subject: [PATCH 355/923] x86: disable KVM for Voyager and friends Most classic Pentiums don't have hardware virtualization extension, and building kvm with Voyager, Visual Workstation, or NUMAQ generates spurious failures. Signed-off-by: Avi Kivity Signed-off-by: Randy Dunlap --- arch/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 4a88cf7695b..53800b80a20 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -21,7 +21,7 @@ config X86 select HAVE_IDE select HAVE_OPROFILE select HAVE_KPROBES - select HAVE_KVM + select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64) config GENERIC_LOCKBREAK -- GitLab From 13b1c3d4b49bd83d861c775ca2db54e1692a1b07 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Mon, 3 Mar 2008 20:22:05 -0800 Subject: [PATCH 356/923] freezer vs stopped or traced This changes the "freezer" code used by suspend/hibernate in its treatment of tasks in TASK_STOPPED (job control stop) and TASK_TRACED (ptrace) states. As I understand it, the intent of the "freezer" is to hold all tasks from doing anything significant. For this purpose, TASK_STOPPED and TASK_TRACED are "frozen enough". It's possible the tasks might resume from ptrace calls (if the tracer were unfrozen) or from signals (including ones that could come via timer interrupts, etc). But this doesn't matter as long as they quickly block again while "freezing" is in effect. Some minor adjustments to the signal.c code make sure that try_to_freeze() very shortly follows all wakeups from both kinds of stop. This lets the freezer code safely leave stopped tasks unmolested. Changing this fixes the longstanding bug of seeing after resuming from suspend/hibernate your shell report "[1] Stopped" and the like for all your jobs stopped by ^Z et al, as if you had freshly fg'd and ^Z'd them. It also removes from the freezer the arcane special case treatment for ptrace'd tasks, which relied on intimate knowledge of ptrace internals. Signed-off-by: Roland McGrath Signed-off-by: Linus Torvalds --- kernel/power/process.c | 29 ++++++++++++----------------- kernel/signal.c | 16 ++++++++++++++-- 2 files changed, 26 insertions(+), 19 deletions(-) diff --git a/kernel/power/process.c b/kernel/power/process.c index 7c2118f9597..f1d0b345c9b 100644 --- a/kernel/power/process.c +++ b/kernel/power/process.c @@ -75,22 +75,15 @@ void refrigerator(void) __set_current_state(save); } -static void fake_signal_wake_up(struct task_struct *p, int resume) +static void fake_signal_wake_up(struct task_struct *p) { unsigned long flags; spin_lock_irqsave(&p->sighand->siglock, flags); - signal_wake_up(p, resume); + signal_wake_up(p, 0); spin_unlock_irqrestore(&p->sighand->siglock, flags); } -static void send_fake_signal(struct task_struct *p) -{ - if (task_is_stopped(p)) - force_sig_specific(SIGSTOP, p); - fake_signal_wake_up(p, task_is_stopped(p)); -} - static int has_mm(struct task_struct *p) { return (p->mm && !(p->flags & PF_BORROWED_MM)); @@ -121,7 +114,7 @@ static int freeze_task(struct task_struct *p, int with_mm_only) if (freezing(p)) { if (has_mm(p)) { if (!signal_pending(p)) - fake_signal_wake_up(p, 0); + fake_signal_wake_up(p); } else { if (with_mm_only) ret = 0; @@ -135,7 +128,7 @@ static int freeze_task(struct task_struct *p, int with_mm_only) } else { if (has_mm(p)) { set_freeze_flag(p); - send_fake_signal(p); + fake_signal_wake_up(p); } else { if (with_mm_only) { ret = 0; @@ -182,15 +175,17 @@ static int try_to_freeze_tasks(int freeze_user_space) if (frozen(p) || !freezeable(p)) continue; - if (task_is_traced(p) && frozen(p->parent)) { - cancel_freezing(p); - continue; - } - if (!freeze_task(p, freeze_user_space)) continue; - if (!freezer_should_skip(p)) + /* + * Now that we've done set_freeze_flag, don't + * perturb a task in TASK_STOPPED or TASK_TRACED. + * It is "frozen enough". If the task does wake + * up, it will immediately call try_to_freeze. + */ + if (!task_is_stopped_or_traced(p) && + !freezer_should_skip(p)) todo++; } while_each_thread(g, p); read_unlock(&tasklist_lock); diff --git a/kernel/signal.c b/kernel/signal.c index 84917fe507f..6af1210092c 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1623,7 +1623,6 @@ static void ptrace_stop(int exit_code, int clear_code, siginfo_t *info) /* Let the debugger run. */ __set_current_state(TASK_TRACED); spin_unlock_irq(¤t->sighand->siglock); - try_to_freeze(); read_lock(&tasklist_lock); if (!unlikely(killed) && may_ptrace_stop()) { do_notify_parent_cldstop(current, CLD_TRAPPED); @@ -1640,6 +1639,13 @@ static void ptrace_stop(int exit_code, int clear_code, siginfo_t *info) read_unlock(&tasklist_lock); } + /* + * While in TASK_TRACED, we were considered "frozen enough". + * Now that we woke up, it's crucial if we're supposed to be + * frozen that we freeze now before running anything substantial. + */ + try_to_freeze(); + /* * We are back. Now reacquire the siglock before touching * last_siginfo, so that we are sure to have synchronized with @@ -1757,9 +1763,15 @@ int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, sigset_t *mask = ¤t->blocked; int signr = 0; +relock: + /* + * We'll jump back here after any time we were stopped in TASK_STOPPED. + * While in TASK_STOPPED, we were considered "frozen enough". + * Now that we woke up, it's crucial if we're supposed to be + * frozen that we freeze now before running anything substantial. + */ try_to_freeze(); -relock: spin_lock_irq(¤t->sighand->siglock); for (;;) { struct k_sigaction *ka; -- GitLab From 10a7f3135ac4937a3dc8ed11614a2b70cbd44728 Mon Sep 17 00:00:00 2001 From: Tony Breeds Date: Tue, 4 Mar 2008 16:05:06 +1100 Subject: [PATCH 357/923] Build fix for drivers/s390/char/defkeymap.c Commit 5ce2087ed0eb424e0889bdc9102727f65d2ecdde (Fix default compose table initialization) left a trailing quote. CC drivers/s390/char/defkeymap.o drivers/s390/char/defkeymap.c:155: error: missing terminating ' character drivers/s390/char/defkeymap.c:156: error: syntax error before ';' token make[3]: *** [drivers/s390/char/defkeymap.o] Error 1 Fix that. Signed-off-by: Tony Breeds Signed-off-by: Linus Torvalds --- drivers/s390/char/defkeymap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/char/defkeymap.c b/drivers/s390/char/defkeymap.c index 9692d6a205e..07c7f31081b 100644 --- a/drivers/s390/char/defkeymap.c +++ b/drivers/s390/char/defkeymap.c @@ -152,7 +152,7 @@ char *func_table[MAX_NR_FUNC] = { struct kbdiacruc accent_table[MAX_DIACR] = { {'^', 'c', 0003}, {'^', 'd', 0004}, - {'^', 'z', 0032}, {'^', 0012', 0000}, + {'^', 'z', 0032}, {'^', 0012, 0000}, }; unsigned int accent_table_size = 4; -- GitLab From 673da21b10fe5988dd237beddd5292e18b5c5988 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 4 Mar 2008 15:44:23 +1000 Subject: [PATCH 358/923] m68knommu: update defconfig Update the m68knommu defconfig. Signed-off-by: Greg Ungerer Signed-off-by: Linus Torvalds --- arch/m68knommu/defconfig | 112 +++++++++++++++++++-------------------- 1 file changed, 56 insertions(+), 56 deletions(-) diff --git a/arch/m68knommu/defconfig b/arch/m68knommu/defconfig index 648113075f9..670b0a99cfa 100644 --- a/arch/m68knommu/defconfig +++ b/arch/m68knommu/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.23 -# Thu Oct 18 13:17:38 2007 +# Linux kernel version: 2.6.25-rc3 +# Mon Feb 25 15:03:00 2008 # CONFIG_M68K=y # CONFIG_MMU is not set @@ -15,8 +15,10 @@ CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_TIME=y CONFIG_TIME_LOW_RES=y CONFIG_NO_IOPORT=y +CONFIG_ARCH_SUPPORTS_AOUT=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # @@ -31,12 +33,14 @@ CONFIG_LOCALVERSION_AUTO=y # CONFIG_POSIX_MQUEUE is not set # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_USER_NS is not set # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CGROUPS is not set +# CONFIG_GROUP_SCHED is not set # CONFIG_SYSFS_DEPRECATED is not set # CONFIG_RELAY is not set +# CONFIG_NAMESPACES is not set # CONFIG_BLK_DEV_INITRD is not set # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SYSCTL=y @@ -48,15 +52,22 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y +CONFIG_COMPAT_BRK=y CONFIG_BASE_FULL=y # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_SIGNALFD is not set +# CONFIG_TIMERFD is not set # CONFIG_EVENTFD is not set # CONFIG_VM_EVENT_COUNTERS is not set CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set +# CONFIG_PROFILING is not set +# CONFIG_MARKERS is not set +# CONFIG_HAVE_OPROFILE is not set +# CONFIG_HAVE_KPROBES is not set +CONFIG_SLABINFO=y CONFIG_TINY_SHMEM=y CONFIG_BASE_SMALL=0 CONFIG_MODULES=y @@ -83,6 +94,8 @@ CONFIG_IOSCHED_NOOP=y # CONFIG_DEFAULT_CFQ is not set CONFIG_DEFAULT_NOOP=y CONFIG_DEFAULT_IOSCHED="noop" +CONFIG_CLASSIC_RCU=y +# CONFIG_PREEMPT_RCU is not set # # Processor type and features @@ -121,6 +134,7 @@ CONFIG_M5272C3=y # CONFIG_MOD5272 is not set CONFIG_FREESCALE=y CONFIG_4KSTACKS=y +CONFIG_HZ=100 # # RAM configuration @@ -147,6 +161,7 @@ CONFIG_FLATMEM_MANUAL=y CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set +# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_RESOURCES_64BIT is not set CONFIG_ZONE_DMA_FLAG=1 @@ -158,10 +173,6 @@ CONFIG_VIRT_TO_BUS=y # CONFIG_PCI is not set # CONFIG_ARCH_SUPPORTS_MSI is not set -# -# PCCARD (PCMCIA/CardBus) support -# - # # Executable file formats # @@ -205,6 +216,7 @@ CONFIG_IP_FIB_HASH=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set # CONFIG_INET_DIAG is not set # CONFIG_TCP_CONG_ADVANCED is not set CONFIG_TCP_CONG_CUBIC=y @@ -229,10 +241,6 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_LAPB is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set - -# -# QoS and/or fair queueing -# # CONFIG_NET_SCHED is not set # @@ -240,6 +248,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # # CONFIG_NET_PKTGEN is not set # CONFIG_HAMRADIO is not set +# CONFIG_CAN is not set # CONFIG_IRDA is not set # CONFIG_BT is not set # CONFIG_AF_RXRPC is not set @@ -283,6 +292,7 @@ CONFIG_MTD_BLOCK=y # CONFIG_INFTL is not set # CONFIG_RFD_FTL is not set # CONFIG_SSFDC is not set +# CONFIG_MTD_OOPS is not set # # RAM/ROM/Flash chip drivers @@ -339,10 +349,11 @@ CONFIG_BLK_DEV=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=4096 -CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_BLK_DEV_XIP is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set # CONFIG_MISC_DEVICES is not set +CONFIG_HAVE_IDE=y # CONFIG_IDE is not set # @@ -360,9 +371,15 @@ CONFIG_NETDEVICES=y # CONFIG_MACVLAN is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set +# CONFIG_VETH is not set # CONFIG_PHYLIB is not set CONFIG_NET_ETHERNET=y # CONFIG_MII is not set +# CONFIG_IBM_NEW_EMAC_ZMII is not set +# CONFIG_IBM_NEW_EMAC_RGMII is not set +# CONFIG_IBM_NEW_EMAC_TAH is not set +# CONFIG_IBM_NEW_EMAC_EMAC4 is not set +# CONFIG_B44 is not set CONFIG_FEC=y # CONFIG_FEC2 is not set # CONFIG_NETDEV_1000 is not set @@ -377,7 +394,7 @@ CONFIG_FEC=y CONFIG_PPP=y # CONFIG_PPP_MULTILINK is not set # CONFIG_PPP_FILTER is not set -# CONFIG_PPP_ASYNC is not set +CONFIG_PPP_ASYNC=y # CONFIG_PPP_SYNC_TTY is not set # CONFIG_PPP_DEFLATE is not set # CONFIG_PPP_BSDCOMP is not set @@ -386,7 +403,6 @@ CONFIG_PPP=y # CONFIG_PPPOL2TP is not set # CONFIG_SLIP is not set CONFIG_SLHC=y -# CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set @@ -418,12 +434,16 @@ CONFIG_SLHC=y # # Non-8250 serial port support # -CONFIG_SERIAL_COLDFIRE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_COLDFIRE is not set +CONFIG_SERIAL_MCF=y +CONFIG_SERIAL_MCF_BAUDRATE=19200 +CONFIG_SERIAL_MCF_CONSOLE=y # CONFIG_UNIX98_PTYS is not set CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_IPMI_HANDLER is not set -# CONFIG_WATCHDOG is not set # CONFIG_HW_RANDOM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set @@ -439,6 +459,14 @@ CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_W1 is not set # CONFIG_POWER_SUPPLY is not set # CONFIG_HWMON is not set +# CONFIG_THERMAL is not set +# CONFIG_WATCHDOG is not set + +# +# Sonics Silicon Backplane +# +CONFIG_SSB_POSSIBLE=y +# CONFIG_SSB is not set # # Multifunction device drivers @@ -450,20 +478,20 @@ CONFIG_LEGACY_PTY_COUNT=256 # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # # Graphics support # +# CONFIG_VGASTATE is not set +# CONFIG_VIDEO_OUTPUT_CONTROL is not set +# CONFIG_FB is not set # CONFIG_BACKLIGHT_LCD_SUPPORT is not set # # Display device support # # CONFIG_DISPLAY_SUPPORT is not set -# CONFIG_VGASTATE is not set -CONFIG_VIDEO_OUTPUT_CONTROL=y -# CONFIG_FB is not set # # Sound @@ -471,22 +499,10 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_SOUND is not set # CONFIG_USB_SUPPORT is not set # CONFIG_MMC is not set +# CONFIG_MEMSTICK is not set # CONFIG_NEW_LEDS is not set # CONFIG_RTC_CLASS is not set -# -# DMA Engine support -# -# CONFIG_DMA_ENGINE is not set - -# -# DMA Clients -# - -# -# DMA Devices -# - # # Userspace I/O # @@ -505,11 +521,9 @@ CONFIG_EXT2_FS=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set -# CONFIG_MINIX_FS is not set -CONFIG_ROMFS_FS=y +# CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set # CONFIG_QUOTA is not set -# CONFIG_DNOTIFY is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_FUSE_FS is not set @@ -535,7 +549,6 @@ CONFIG_PROC_SYSCTL=y CONFIG_SYSFS=y # CONFIG_TMPFS is not set # CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set # @@ -551,42 +564,27 @@ CONFIG_RAMFS=y # CONFIG_JFFS2_FS is not set # CONFIG_CRAMFS is not set # CONFIG_VXFS_FS is not set +# CONFIG_MINIX_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set +CONFIG_ROMFS_FS=y # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set - -# -# Network File Systems -# -# CONFIG_NFS_FS is not set -# CONFIG_NFSD is not set -# CONFIG_SMB_FS is not set -# CONFIG_CIFS is not set -# CONFIG_NCP_FS is not set -# CONFIG_CODA_FS is not set -# CONFIG_AFS_FS is not set +# CONFIG_NETWORK_FILESYSTEMS is not set # # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# # CONFIG_NLS is not set - -# -# Distributed Lock Manager -# # CONFIG_DLM is not set # # Kernel hacking # # CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_WARN_DEPRECATED=y # CONFIG_ENABLE_MUST_CHECK is not set # CONFIG_MAGIC_SYSRQ is not set # CONFIG_UNUSED_SYMBOLS is not set @@ -594,6 +592,7 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set # CONFIG_DEBUG_BUGVERBOSE is not set +# CONFIG_SAMPLES is not set # CONFIG_FULLDEBUG is not set # CONFIG_HIGHPROFILE is not set # CONFIG_BOOTPARAM is not set @@ -605,6 +604,7 @@ CONFIG_MSDOS_PARTITION=y # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set +# CONFIG_SECURITY_FILE_CAPABILITIES is not set # CONFIG_CRYPTO is not set # -- GitLab From 881ab680a49708b785384990ba729c1305e7f978 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 4 Mar 2008 16:24:17 +1000 Subject: [PATCH 359/923] m68knommu: remove duplicate hw_tick() code Remove duplicate hw_tick() function from 68328 timers code. Signed-off-by: Greg Ungerer Signed-off-by: Linus Torvalds --- arch/m68knommu/platform/68328/timers.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/arch/m68knommu/platform/68328/timers.c b/arch/m68knommu/platform/68328/timers.c index 9159fd05c9a..6bafefa546e 100644 --- a/arch/m68knommu/platform/68328/timers.c +++ b/arch/m68knommu/platform/68328/timers.c @@ -67,16 +67,6 @@ static irqreturn_t hw_tick(int irq, void *dummy) /***************************************************************************/ -static irqreturn_t hw_tick(int irq, void *dummy) -{ - /* Reset Timer1 */ - TSTAT &= 0; - - return arch_timer_interrupt(irq, dummy); -} - -/***************************************************************************/ - static struct irqaction m68328_timer_irq = { .name = "timer", .flags = IRQF_DISABLED | IRQF_TIMER, -- GitLab From e311f68a4e43ade048d7dbaa6b458fbe31114daf Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 4 Mar 2008 16:35:04 +1000 Subject: [PATCH 360/923] m68knommu: declare do_IRQ() Need a declaration of do_IRQ for the 68328 interrupt handling code. It is common to all m68knommu targets, so a common declaration makes sense. Signed-off-by: Greg Ungerer Signed-off-by: Linus Torvalds --- include/asm-m68knommu/machdep.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/asm-m68knommu/machdep.h b/include/asm-m68knommu/machdep.h index 1cf26d240d8..de9f47a51cc 100644 --- a/include/asm-m68knommu/machdep.h +++ b/include/asm-m68knommu/machdep.h @@ -21,4 +21,6 @@ extern void (*mach_power_off)( void ); extern void config_BSP(char *command, int len); +extern void do_IRQ(int irq, struct pt_regs *fp); + #endif /* _M68KNOMMU_MACHDEP_H */ -- GitLab From 0a504779d312ab20b9dbe3c8f1c66f395f80e2eb Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 4 Mar 2008 16:52:01 +1000 Subject: [PATCH 361/923] m68knommu: fix fec driver interrupt races The FEC driver has a common interrupt handler for all interrupt event types. It is raised on a number of distinct interrupt vectors. This handler can't be re-entered while processing an interrupt, so make sure all requested vectors are flagged as IRQF_DISABLED. Signed-off-by: Greg Ungerer Signed-off-by: Linus Torvalds --- drivers/net/fec.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/fec.c b/drivers/net/fec.c index 0fbf1bbbaee..d7a3ea88edd 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -1253,7 +1253,7 @@ static void __inline__ fec_request_intrs(struct net_device *dev) /* Setup interrupt handlers. */ for (idp = id; idp->name; idp++) { - if (request_irq(idp->irq, idp->handler, 0, idp->name, dev) != 0) + if (request_irq(idp->irq, idp->handler, IRQF_DISABLED, idp->name, dev) != 0) printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, idp->irq); } @@ -1382,7 +1382,7 @@ static void __inline__ fec_request_intrs(struct net_device *dev) /* Setup interrupt handlers. */ for (idp = id; idp->name; idp++) { - if (request_irq(b+idp->irq, fec_enet_interrupt, 0, idp->name, dev) != 0) + if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name, dev) != 0) printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, b+idp->irq); } @@ -1553,7 +1553,7 @@ static void __inline__ fec_request_intrs(struct net_device *dev) /* Setup interrupt handlers. */ for (idp = id; idp->name; idp++) { - if (request_irq(b+idp->irq,fec_enet_interrupt,0,idp->name,dev)!=0) + if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name,dev) != 0) printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, b+idp->irq); } @@ -1680,7 +1680,7 @@ static void __inline__ fec_request_intrs(struct net_device *dev) /* Setup interrupt handlers. */ for (idp = id; idp->name; idp++) { - if (request_irq(b+idp->irq,fec_enet_interrupt,0,idp->name,dev)!=0) + if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name,dev) != 0) printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, b+idp->irq); } -- GitLab From 8727e28ddebb031d80b5e261c98c24f1dcb9a82f Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 4 Mar 2008 09:18:16 +0100 Subject: [PATCH 362/923] m68k{,nommu}: Wire up new timerfd syscalls m68k{,nommu}: Wire up the new timerfd syscalls, which were introduced in commit 4d672e7ac79b5ec5cdc90e450823441e20464691 ("timerfd: new timerfd API"). Signed-off-by: Geert Uytterhoeven Acked-by: Greg Ungerer Signed-off-by: Linus Torvalds --- arch/m68k/kernel/entry.S | 4 +++- arch/m68knommu/kernel/syscalltable.S | 4 +++- include/asm-m68k/unistd.h | 6 ++++-- include/asm-m68knommu/unistd.h | 6 ++++-- 4 files changed, 14 insertions(+), 6 deletions(-) diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 6dfa3b3c0e2..18a9c5f4b00 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -742,7 +742,9 @@ sys_call_table: .long sys_epoll_pwait /* 315 */ .long sys_utimensat .long sys_signalfd - .long sys_ni_syscall + .long sys_timerfd_create .long sys_eventfd .long sys_fallocate /* 320 */ + .long sys_timerfd_settime + .long sys_timerfd_gettime diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S index 1b02b882006..fca2e49917a 100644 --- a/arch/m68knommu/kernel/syscalltable.S +++ b/arch/m68knommu/kernel/syscalltable.S @@ -336,9 +336,11 @@ ENTRY(sys_call_table) .long sys_epoll_pwait /* 315 */ .long sys_utimensat .long sys_signalfd - .long sys_ni_syscall + .long sys_timerfd_create .long sys_eventfd .long sys_fallocate /* 320 */ + .long sys_timerfd_settime + .long sys_timerfd_gettime .rept NR_syscalls-(.-sys_call_table)/4 .long sys_ni_syscall diff --git a/include/asm-m68k/unistd.h b/include/asm-m68k/unistd.h index 87f77b11931..e72ba563f10 100644 --- a/include/asm-m68k/unistd.h +++ b/include/asm-m68k/unistd.h @@ -320,13 +320,15 @@ #define __NR_epoll_pwait 315 #define __NR_utimensat 316 #define __NR_signalfd 317 -#define __NR_timerfd 318 +#define __NR_timerfd_create 318 #define __NR_eventfd 319 #define __NR_fallocate 320 +#define __NR_timerfd_settime 321 +#define __NR_timerfd_gettime 322 #ifdef __KERNEL__ -#define NR_syscalls 321 +#define NR_syscalls 323 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR diff --git a/include/asm-m68knommu/unistd.h b/include/asm-m68knommu/unistd.h index 27c2f9bb4db..4ba98b9c5d7 100644 --- a/include/asm-m68knommu/unistd.h +++ b/include/asm-m68knommu/unistd.h @@ -321,13 +321,15 @@ #define __NR_epoll_pwait 315 #define __NR_utimensat 316 #define __NR_signalfd 317 -#define __NR_timerfd 318 +#define __NR_timerfd_create 318 #define __NR_eventfd 319 #define __NR_fallocate 320 +#define __NR_timerfd_settime 321 +#define __NR_timerfd_gettime 322 #ifdef __KERNEL__ -#define NR_syscalls 321 +#define NR_syscalls 323 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR -- GitLab From 18a8622101154277df97e24097ed17aace84fa3a Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Mon, 3 Mar 2008 13:01:08 -0800 Subject: [PATCH 363/923] x86, i387: fix ptrace leakage using init_fpu() This bug got introduced by the recent i387 merge: commit 4421011120b2304e5c248ae4165a2704588aedf1 Author: Roland McGrath Date: Wed Jan 30 13:31:50 2008 +0100 x86: x86 i387 user_regset Current usage of unlazy_fpu() in ptrace specific routines is wrong. unlazy_fpu() will not init fpu if the task never used math. So the ptrace calls can expose the parent tasks FPU data in some cases. Replace it with the init_fpu() which will init the math state, if the task never used math before. Signed-off-by: Suresh Siddha Signed-off-by: Ingo Molnar Acked-by: Thomas Gleixner --- arch/x86/kernel/i387.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c index 763dfc40723..60fe8015756 100644 --- a/arch/x86/kernel/i387.c +++ b/arch/x86/kernel/i387.c @@ -132,7 +132,7 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset, if (!cpu_has_fxsr) return -ENODEV; - unlazy_fpu(target); + init_fpu(target); return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &target->thread.i387.fxsave, 0, -1); @@ -147,7 +147,7 @@ int xfpregs_set(struct task_struct *target, const struct user_regset *regset, if (!cpu_has_fxsr) return -ENODEV; - unlazy_fpu(target); + init_fpu(target); set_stopped_child_used_math(target); ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, @@ -307,7 +307,7 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset, if (!HAVE_HWFP) return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf); - unlazy_fpu(target); + init_fpu(target); if (!cpu_has_fxsr) return user_regset_copyout(&pos, &count, &kbuf, &ubuf, @@ -332,7 +332,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset, if (!HAVE_HWFP) return fpregs_soft_set(target, regset, pos, count, kbuf, ubuf); - unlazy_fpu(target); + init_fpu(target); set_stopped_child_used_math(target); if (!cpu_has_fxsr) -- GitLab From 7c9e92b6cdc9937eee53600e5d49a25e421463dd Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Feb 2008 15:35:54 -0800 Subject: [PATCH 364/923] x86: not set node to cpu_to_node if the node is not online resolve boot problem reported by Mel Gorman: http://lkml.org/lkml/2008/2/13/404 init_cpu_to_node will use cpu->apic (from MADT or mptable) and apic->node(from SRAT or AMD config space with k8_bus_64.c) to have cpu->node mapping, and later identify_cpu will overwrite them again...(with nearby_node...) this patch checks if the node is online, otherwise it will not update cpu_node map. so keep cpu_node map to online node before identify_cpu..., to prevent possible error. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar Acked-by: Thomas Gleixner --- arch/x86/mm/numa_64.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 59898fb0a4a..8ccfee10f5b 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -622,13 +622,17 @@ void __init init_cpu_to_node(void) int i; for (i = 0; i < NR_CPUS; i++) { + int node; u16 apicid = x86_cpu_to_apicid_init[i]; if (apicid == BAD_APICID) continue; - if (apicid_to_node[apicid] == NUMA_NO_NODE) + node = apicid_to_node[apicid]; + if (node == NUMA_NO_NODE) continue; - numa_set_node(i, apicid_to_node[apicid]); + if (!node_online(node)) + continue; + numa_set_node(i, node); } } -- GitLab From 87d034f3139b5f0d93df2ba58f37d6f2c2c7eeb6 Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Thu, 28 Feb 2008 23:16:49 +0000 Subject: [PATCH 365/923] x86/xen: fix DomU boot problem Construct Xen guest e820 map with a hole between 640K-1M. It's pure luck that Xen kernels have gotten away with it in the past. The patch below seems like the right thing to do. It certainly boots in a domU without the DMI problem (without any of the other related patches such as Alexander's). Signed-off-by: Ian Campbell Cc: H. Peter Anvin Cc: Jeremy Fitzhardinge Tested-by: Mark McLoughlin Acked-by: Mark McLoughlin Signed-off-by: Ingo Molnar Acked-by: Thomas Gleixner --- arch/x86/xen/setup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 3bad4773a2f..2341492bf7a 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -38,7 +38,8 @@ char * __init xen_memory_setup(void) unsigned long max_pfn = xen_start_info->nr_pages; e820.nr_map = 0; - add_memory_region(0, PFN_PHYS(max_pfn), E820_RAM); + add_memory_region(0, LOWMEMSIZE(), E820_RAM); + add_memory_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM); return "Xen"; } -- GitLab From 62fb185130e4d420f71a30ff59d8b16b74ef5d2b Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 25 Feb 2008 17:34:02 +0100 Subject: [PATCH 366/923] sched: revert load_balance_monitor() changes The following commits cause a number of regressions: commit 58e2d4ca581167c2a079f4ee02be2f0bc52e8729 Author: Srivatsa Vaddagiri Date: Fri Jan 25 21:08:00 2008 +0100 sched: group scheduling, change how cpu load is calculated commit 6b2d7700266b9402e12824e11e0099ae6a4a6a79 Author: Srivatsa Vaddagiri Date: Fri Jan 25 21:08:00 2008 +0100 sched: group scheduler, fix fairness of cpu bandwidth allocation for task groups Namely: - very frequent wakeups on SMP, reported by PowerTop users. - cacheline trashing on (large) SMP - some latencies larger than 500ms While there is a mergeable patch to fix the latter, the former issues are not fixable in a manner suitable for .25 (we're at -rc3 now). Hence we revert them and try again in v2.6.26. Signed-off-by: Peter Zijlstra CC: Srivatsa Vaddagiri Tested-by: Alexey Zaytsev Signed-off-by: Ingo Molnar --- include/linux/sched.h | 4 - kernel/sched.c | 283 ++++++------------------------------------ kernel/sched_fair.c | 115 ++++++----------- kernel/sched_rt.c | 4 - kernel/sysctl.c | 18 --- 5 files changed, 70 insertions(+), 354 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 2c9621f8bf8..9ae4030067a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1542,10 +1542,6 @@ extern unsigned int sysctl_sched_child_runs_first; extern unsigned int sysctl_sched_features; extern unsigned int sysctl_sched_migration_cost; extern unsigned int sysctl_sched_nr_migrate; -#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_SMP) -extern unsigned int sysctl_sched_min_bal_int_shares; -extern unsigned int sysctl_sched_max_bal_int_shares; -#endif int sched_nr_latency_handler(struct ctl_table *table, int write, struct file *file, void __user *buffer, size_t *length, diff --git a/kernel/sched.c b/kernel/sched.c index f06950c8a6c..dcd553cc4ee 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -174,41 +174,6 @@ struct task_group { struct sched_entity **se; /* runqueue "owned" by this group on each cpu */ struct cfs_rq **cfs_rq; - - /* - * shares assigned to a task group governs how much of cpu bandwidth - * is allocated to the group. The more shares a group has, the more is - * the cpu bandwidth allocated to it. - * - * For ex, lets say that there are three task groups, A, B and C which - * have been assigned shares 1000, 2000 and 3000 respectively. Then, - * cpu bandwidth allocated by the scheduler to task groups A, B and C - * should be: - * - * Bw(A) = 1000/(1000+2000+3000) * 100 = 16.66% - * Bw(B) = 2000/(1000+2000+3000) * 100 = 33.33% - * Bw(C) = 3000/(1000+2000+3000) * 100 = 50% - * - * The weight assigned to a task group's schedulable entities on every - * cpu (task_group.se[a_cpu]->load.weight) is derived from the task - * group's shares. For ex: lets say that task group A has been - * assigned shares of 1000 and there are two CPUs in a system. Then, - * - * tg_A->se[0]->load.weight = tg_A->se[1]->load.weight = 1000; - * - * Note: It's not necessary that each of a task's group schedulable - * entity have the same weight on all CPUs. If the group - * has 2 of its tasks on CPU0 and 1 task on CPU1, then a - * better distribution of weight could be: - * - * tg_A->se[0]->load.weight = 2/3 * 2000 = 1333 - * tg_A->se[1]->load.weight = 1/2 * 2000 = 667 - * - * rebalance_shares() is responsible for distributing the shares of a - * task groups like this among the group's schedulable entities across - * cpus. - * - */ unsigned long shares; #endif @@ -250,22 +215,12 @@ static DEFINE_SPINLOCK(task_group_lock); static DEFINE_MUTEX(doms_cur_mutex); #ifdef CONFIG_FAIR_GROUP_SCHED -#ifdef CONFIG_SMP -/* kernel thread that runs rebalance_shares() periodically */ -static struct task_struct *lb_monitor_task; -static int load_balance_monitor(void *unused); -#endif - -static void set_se_shares(struct sched_entity *se, unsigned long shares); - #ifdef CONFIG_USER_SCHED # define INIT_TASK_GROUP_LOAD (2*NICE_0_LOAD) #else # define INIT_TASK_GROUP_LOAD NICE_0_LOAD #endif -#define MIN_GROUP_SHARES 2 - static int init_task_group_load = INIT_TASK_GROUP_LOAD; #endif @@ -1245,16 +1200,6 @@ static void cpuacct_charge(struct task_struct *tsk, u64 cputime); static inline void cpuacct_charge(struct task_struct *tsk, u64 cputime) {} #endif -static inline void inc_cpu_load(struct rq *rq, unsigned long load) -{ - update_load_add(&rq->load, load); -} - -static inline void dec_cpu_load(struct rq *rq, unsigned long load) -{ - update_load_sub(&rq->load, load); -} - #ifdef CONFIG_SMP static unsigned long source_load(int cpu, int type); static unsigned long target_load(int cpu, int type); @@ -1272,14 +1217,26 @@ static int task_hot(struct task_struct *p, u64 now, struct sched_domain *sd); #define sched_class_highest (&rt_sched_class) -static void inc_nr_running(struct rq *rq) +static inline void inc_load(struct rq *rq, const struct task_struct *p) +{ + update_load_add(&rq->load, p->se.load.weight); +} + +static inline void dec_load(struct rq *rq, const struct task_struct *p) +{ + update_load_sub(&rq->load, p->se.load.weight); +} + +static void inc_nr_running(struct task_struct *p, struct rq *rq) { rq->nr_running++; + inc_load(rq, p); } -static void dec_nr_running(struct rq *rq) +static void dec_nr_running(struct task_struct *p, struct rq *rq) { rq->nr_running--; + dec_load(rq, p); } static void set_load_weight(struct task_struct *p) @@ -1371,7 +1328,7 @@ static void activate_task(struct rq *rq, struct task_struct *p, int wakeup) rq->nr_uninterruptible--; enqueue_task(rq, p, wakeup); - inc_nr_running(rq); + inc_nr_running(p, rq); } /* @@ -1383,7 +1340,7 @@ static void deactivate_task(struct rq *rq, struct task_struct *p, int sleep) rq->nr_uninterruptible++; dequeue_task(rq, p, sleep); - dec_nr_running(rq); + dec_nr_running(p, rq); } /** @@ -2023,7 +1980,7 @@ void wake_up_new_task(struct task_struct *p, unsigned long clone_flags) * management (if any): */ p->sched_class->task_new(rq, p); - inc_nr_running(rq); + inc_nr_running(p, rq); } check_preempt_curr(rq, p); #ifdef CONFIG_SMP @@ -4362,8 +4319,10 @@ void set_user_nice(struct task_struct *p, long nice) goto out_unlock; } on_rq = p->se.on_rq; - if (on_rq) + if (on_rq) { dequeue_task(rq, p, 0); + dec_load(rq, p); + } p->static_prio = NICE_TO_PRIO(nice); set_load_weight(p); @@ -4373,6 +4332,7 @@ void set_user_nice(struct task_struct *p, long nice) if (on_rq) { enqueue_task(rq, p, 0); + inc_load(rq, p); /* * If the task increased its priority or is running and * lowered its priority, then reschedule its CPU: @@ -7087,21 +7047,6 @@ void __init sched_init_smp(void) if (set_cpus_allowed(current, non_isolated_cpus) < 0) BUG(); sched_init_granularity(); - -#ifdef CONFIG_FAIR_GROUP_SCHED - if (nr_cpu_ids == 1) - return; - - lb_monitor_task = kthread_create(load_balance_monitor, NULL, - "group_balance"); - if (!IS_ERR(lb_monitor_task)) { - lb_monitor_task->flags |= PF_NOFREEZE; - wake_up_process(lb_monitor_task); - } else { - printk(KERN_ERR "Could not create load balance monitor thread" - "(error = %ld) \n", PTR_ERR(lb_monitor_task)); - } -#endif } #else void __init sched_init_smp(void) @@ -7424,157 +7369,6 @@ void set_curr_task(int cpu, struct task_struct *p) #ifdef CONFIG_GROUP_SCHED -#if defined CONFIG_FAIR_GROUP_SCHED && defined CONFIG_SMP -/* - * distribute shares of all task groups among their schedulable entities, - * to reflect load distribution across cpus. - */ -static int rebalance_shares(struct sched_domain *sd, int this_cpu) -{ - struct cfs_rq *cfs_rq; - struct rq *rq = cpu_rq(this_cpu); - cpumask_t sdspan = sd->span; - int balanced = 1; - - /* Walk thr' all the task groups that we have */ - for_each_leaf_cfs_rq(rq, cfs_rq) { - int i; - unsigned long total_load = 0, total_shares; - struct task_group *tg = cfs_rq->tg; - - /* Gather total task load of this group across cpus */ - for_each_cpu_mask(i, sdspan) - total_load += tg->cfs_rq[i]->load.weight; - - /* Nothing to do if this group has no load */ - if (!total_load) - continue; - - /* - * tg->shares represents the number of cpu shares the task group - * is eligible to hold on a single cpu. On N cpus, it is - * eligible to hold (N * tg->shares) number of cpu shares. - */ - total_shares = tg->shares * cpus_weight(sdspan); - - /* - * redistribute total_shares across cpus as per the task load - * distribution. - */ - for_each_cpu_mask(i, sdspan) { - unsigned long local_load, local_shares; - - local_load = tg->cfs_rq[i]->load.weight; - local_shares = (local_load * total_shares) / total_load; - if (!local_shares) - local_shares = MIN_GROUP_SHARES; - if (local_shares == tg->se[i]->load.weight) - continue; - - spin_lock_irq(&cpu_rq(i)->lock); - set_se_shares(tg->se[i], local_shares); - spin_unlock_irq(&cpu_rq(i)->lock); - balanced = 0; - } - } - - return balanced; -} - -/* - * How frequently should we rebalance_shares() across cpus? - * - * The more frequently we rebalance shares, the more accurate is the fairness - * of cpu bandwidth distribution between task groups. However higher frequency - * also implies increased scheduling overhead. - * - * sysctl_sched_min_bal_int_shares represents the minimum interval between - * consecutive calls to rebalance_shares() in the same sched domain. - * - * sysctl_sched_max_bal_int_shares represents the maximum interval between - * consecutive calls to rebalance_shares() in the same sched domain. - * - * These settings allows for the appropriate trade-off between accuracy of - * fairness and the associated overhead. - * - */ - -/* default: 8ms, units: milliseconds */ -const_debug unsigned int sysctl_sched_min_bal_int_shares = 8; - -/* default: 128ms, units: milliseconds */ -const_debug unsigned int sysctl_sched_max_bal_int_shares = 128; - -/* kernel thread that runs rebalance_shares() periodically */ -static int load_balance_monitor(void *unused) -{ - unsigned int timeout = sysctl_sched_min_bal_int_shares; - struct sched_param schedparm; - int ret; - - /* - * We don't want this thread's execution to be limited by the shares - * assigned to default group (init_task_group). Hence make it run - * as a SCHED_RR RT task at the lowest priority. - */ - schedparm.sched_priority = 1; - ret = sched_setscheduler(current, SCHED_RR, &schedparm); - if (ret) - printk(KERN_ERR "Couldn't set SCHED_RR policy for load balance" - " monitor thread (error = %d) \n", ret); - - while (!kthread_should_stop()) { - int i, cpu, balanced = 1; - - /* Prevent cpus going down or coming up */ - get_online_cpus(); - /* lockout changes to doms_cur[] array */ - lock_doms_cur(); - /* - * Enter a rcu read-side critical section to safely walk rq->sd - * chain on various cpus and to walk task group list - * (rq->leaf_cfs_rq_list) in rebalance_shares(). - */ - rcu_read_lock(); - - for (i = 0; i < ndoms_cur; i++) { - cpumask_t cpumap = doms_cur[i]; - struct sched_domain *sd = NULL, *sd_prev = NULL; - - cpu = first_cpu(cpumap); - - /* Find the highest domain at which to balance shares */ - for_each_domain(cpu, sd) { - if (!(sd->flags & SD_LOAD_BALANCE)) - continue; - sd_prev = sd; - } - - sd = sd_prev; - /* sd == NULL? No load balance reqd in this domain */ - if (!sd) - continue; - - balanced &= rebalance_shares(sd, cpu); - } - - rcu_read_unlock(); - - unlock_doms_cur(); - put_online_cpus(); - - if (!balanced) - timeout = sysctl_sched_min_bal_int_shares; - else if (timeout < sysctl_sched_max_bal_int_shares) - timeout *= 2; - - msleep_interruptible(timeout); - } - - return 0; -} -#endif /* CONFIG_SMP */ - #ifdef CONFIG_FAIR_GROUP_SCHED static void free_fair_sched_group(struct task_group *tg) { @@ -7841,29 +7635,25 @@ void sched_move_task(struct task_struct *tsk) } #ifdef CONFIG_FAIR_GROUP_SCHED -/* rq->lock to be locked by caller */ static void set_se_shares(struct sched_entity *se, unsigned long shares) { struct cfs_rq *cfs_rq = se->cfs_rq; struct rq *rq = cfs_rq->rq; int on_rq; - if (!shares) - shares = MIN_GROUP_SHARES; + spin_lock_irq(&rq->lock); on_rq = se->on_rq; - if (on_rq) { + if (on_rq) dequeue_entity(cfs_rq, se, 0); - dec_cpu_load(rq, se->load.weight); - } se->load.weight = shares; se->load.inv_weight = div64_64((1ULL<<32), shares); - if (on_rq) { + if (on_rq) enqueue_entity(cfs_rq, se, 0); - inc_cpu_load(rq, se->load.weight); - } + + spin_unlock_irq(&rq->lock); } static DEFINE_MUTEX(shares_mutex); @@ -7873,18 +7663,18 @@ int sched_group_set_shares(struct task_group *tg, unsigned long shares) int i; unsigned long flags; + /* + * A weight of 0 or 1 can cause arithmetics problems. + * (The default weight is 1024 - so there's no practical + * limitation from this.) + */ + if (shares < 2) + shares = 2; + mutex_lock(&shares_mutex); if (tg->shares == shares) goto done; - if (shares < MIN_GROUP_SHARES) - shares = MIN_GROUP_SHARES; - - /* - * Prevent any load balance activity (rebalance_shares, - * load_balance_fair) from referring to this group first, - * by taking it off the rq->leaf_cfs_rq_list on each cpu. - */ spin_lock_irqsave(&task_group_lock, flags); for_each_possible_cpu(i) unregister_fair_sched_group(tg, i); @@ -7898,11 +7688,8 @@ int sched_group_set_shares(struct task_group *tg, unsigned long shares) * w/o tripping rebalance_share or load_balance_fair. */ tg->shares = shares; - for_each_possible_cpu(i) { - spin_lock_irq(&cpu_rq(i)->lock); + for_each_possible_cpu(i) set_se_shares(tg->se[i], shares); - spin_unlock_irq(&cpu_rq(i)->lock); - } /* * Enable load balance activity on this group, by inserting it back on diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index c8e6492c592..3df4d46994c 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -727,8 +727,6 @@ static inline struct sched_entity *parent_entity(struct sched_entity *se) return se->parent; } -#define GROUP_IMBALANCE_PCT 20 - #else /* CONFIG_FAIR_GROUP_SCHED */ #define for_each_sched_entity(se) \ @@ -819,26 +817,15 @@ hrtick_start_fair(struct rq *rq, struct task_struct *p) static void enqueue_task_fair(struct rq *rq, struct task_struct *p, int wakeup) { struct cfs_rq *cfs_rq; - struct sched_entity *se = &p->se, - *topse = NULL; /* Highest schedulable entity */ - int incload = 1; + struct sched_entity *se = &p->se; for_each_sched_entity(se) { - topse = se; - if (se->on_rq) { - incload = 0; + if (se->on_rq) break; - } cfs_rq = cfs_rq_of(se); enqueue_entity(cfs_rq, se, wakeup); wakeup = 1; } - /* Increment cpu load if we just enqueued the first task of a group on - * 'rq->cpu'. 'topse' represents the group to which task 'p' belongs - * at the highest grouping level. - */ - if (incload) - inc_cpu_load(rq, topse->load.weight); hrtick_start_fair(rq, rq->curr); } @@ -851,28 +838,16 @@ static void enqueue_task_fair(struct rq *rq, struct task_struct *p, int wakeup) static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int sleep) { struct cfs_rq *cfs_rq; - struct sched_entity *se = &p->se, - *topse = NULL; /* Highest schedulable entity */ - int decload = 1; + struct sched_entity *se = &p->se; for_each_sched_entity(se) { - topse = se; cfs_rq = cfs_rq_of(se); dequeue_entity(cfs_rq, se, sleep); /* Don't dequeue parent if it has other entities besides us */ - if (cfs_rq->load.weight) { - if (parent_entity(se)) - decload = 0; + if (cfs_rq->load.weight) break; - } sleep = 1; } - /* Decrement cpu load if we just dequeued the last task of a group on - * 'rq->cpu'. 'topse' represents the group to which task 'p' belongs - * at the highest grouping level. - */ - if (decload) - dec_cpu_load(rq, topse->load.weight); hrtick_start_fair(rq, rq->curr); } @@ -1186,6 +1161,25 @@ static struct task_struct *load_balance_next_fair(void *arg) return __load_balance_iterator(cfs_rq, cfs_rq->rb_load_balance_curr); } +#ifdef CONFIG_FAIR_GROUP_SCHED +static int cfs_rq_best_prio(struct cfs_rq *cfs_rq) +{ + struct sched_entity *curr; + struct task_struct *p; + + if (!cfs_rq->nr_running || !first_fair(cfs_rq)) + return MAX_PRIO; + + curr = cfs_rq->curr; + if (!curr) + curr = __pick_next_entity(cfs_rq); + + p = task_of(curr); + + return p->prio; +} +#endif + static unsigned long load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest, unsigned long max_load_move, @@ -1195,45 +1189,28 @@ load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest, struct cfs_rq *busy_cfs_rq; long rem_load_move = max_load_move; struct rq_iterator cfs_rq_iterator; - unsigned long load_moved; cfs_rq_iterator.start = load_balance_start_fair; cfs_rq_iterator.next = load_balance_next_fair; for_each_leaf_cfs_rq(busiest, busy_cfs_rq) { #ifdef CONFIG_FAIR_GROUP_SCHED - struct cfs_rq *this_cfs_rq = busy_cfs_rq->tg->cfs_rq[this_cpu]; - unsigned long maxload, task_load, group_weight; - unsigned long thisload, per_task_load; - struct sched_entity *se = busy_cfs_rq->tg->se[busiest->cpu]; - - task_load = busy_cfs_rq->load.weight; - group_weight = se->load.weight; + struct cfs_rq *this_cfs_rq; + long imbalance; + unsigned long maxload; - /* - * 'group_weight' is contributed by tasks of total weight - * 'task_load'. To move 'rem_load_move' worth of weight only, - * we need to move a maximum task load of: - * - * maxload = (remload / group_weight) * task_load; - */ - maxload = (rem_load_move * task_load) / group_weight; + this_cfs_rq = cpu_cfs_rq(busy_cfs_rq, this_cpu); - if (!maxload || !task_load) + imbalance = busy_cfs_rq->load.weight - this_cfs_rq->load.weight; + /* Don't pull if this_cfs_rq has more load than busy_cfs_rq */ + if (imbalance <= 0) continue; - per_task_load = task_load / busy_cfs_rq->nr_running; - /* - * balance_tasks will try to forcibly move atleast one task if - * possible (because of SCHED_LOAD_SCALE_FUZZ). Avoid that if - * maxload is less than GROUP_IMBALANCE_FUZZ% the per_task_load. - */ - if (100 * maxload < GROUP_IMBALANCE_PCT * per_task_load) - continue; + /* Don't pull more than imbalance/2 */ + imbalance /= 2; + maxload = min(rem_load_move, imbalance); - /* Disable priority-based load balance */ - *this_best_prio = 0; - thisload = this_cfs_rq->load.weight; + *this_best_prio = cfs_rq_best_prio(this_cfs_rq); #else # define maxload rem_load_move #endif @@ -1242,33 +1219,11 @@ load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest, * load_balance_[start|next]_fair iterators */ cfs_rq_iterator.arg = busy_cfs_rq; - load_moved = balance_tasks(this_rq, this_cpu, busiest, + rem_load_move -= balance_tasks(this_rq, this_cpu, busiest, maxload, sd, idle, all_pinned, this_best_prio, &cfs_rq_iterator); -#ifdef CONFIG_FAIR_GROUP_SCHED - /* - * load_moved holds the task load that was moved. The - * effective (group) weight moved would be: - * load_moved_eff = load_moved/task_load * group_weight; - */ - load_moved = (group_weight * load_moved) / task_load; - - /* Adjust shares on both cpus to reflect load_moved */ - group_weight -= load_moved; - set_se_shares(se, group_weight); - - se = busy_cfs_rq->tg->se[this_cpu]; - if (!thisload) - group_weight = load_moved; - else - group_weight = se->load.weight + load_moved; - set_se_shares(se, group_weight); -#endif - - rem_load_move -= load_moved; - if (rem_load_move <= 0) break; } diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index f54792b175b..76e82851754 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -393,8 +393,6 @@ static void enqueue_task_rt(struct rq *rq, struct task_struct *p, int wakeup) */ for_each_sched_rt_entity(rt_se) enqueue_rt_entity(rt_se); - - inc_cpu_load(rq, p->se.load.weight); } static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep) @@ -414,8 +412,6 @@ static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep) if (rt_rq && rt_rq->rt_nr_running) enqueue_rt_entity(rt_se); } - - dec_cpu_load(rq, p->se.load.weight); } /* diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 8b7e9541179..b2a2d6889ba 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -311,24 +311,6 @@ static struct ctl_table kern_table[] = { .mode = 0644, .proc_handler = &proc_dointvec, }, -#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_SMP) - { - .ctl_name = CTL_UNNUMBERED, - .procname = "sched_min_bal_int_shares", - .data = &sysctl_sched_min_bal_int_shares, - .maxlen = sizeof(unsigned int), - .mode = 0644, - .proc_handler = &proc_dointvec, - }, - { - .ctl_name = CTL_UNNUMBERED, - .procname = "sched_max_bal_int_shares", - .data = &sysctl_sched_max_bal_int_shares, - .maxlen = sizeof(unsigned int), - .mode = 0644, - .proc_handler = &proc_dointvec, - }, -#endif #endif { .ctl_name = CTL_UNNUMBERED, -- GitLab From 173acc7ce8538f1f3040791dc622a92aadc12cf4 Mon Sep 17 00:00:00 2001 From: Zhang Wei Date: Sat, 1 Mar 2008 07:42:48 -0700 Subject: [PATCH 367/923] dmaengine: add driver for Freescale MPC85xx DMA controller The driver implements DMA engine API for Freescale MPC85xx DMA controller, which could be used by devices in the silicon. The driver supports the Basic mode of Freescale MPC85xx DMA controller. The MPC85xx processors supported include MPC8540/60, MPC8555, MPC8548, MPC8641 and so on. The MPC83xx(MPC8349, MPC8360) are also supported. [kamalesh@linux.vnet.ibm.com: build fix] [dan.j.williams@intel.com: merge mm fixes, rebase on async_tx-2.6.25] Signed-off-by: Zhang Wei Signed-off-by: Ebony Zhu Acked-by: Kumar Gala Cc: Shannon Nelson Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Dan Williams --- MAINTAINERS | 7 + drivers/dma/Kconfig | 19 +- drivers/dma/Makefile | 1 + drivers/dma/fsldma.c | 1068 ++++++++++++++++++++++++++++++++++++++++++ drivers/dma/fsldma.h | 189 ++++++++ 5 files changed, 1283 insertions(+), 1 deletion(-) create mode 100644 drivers/dma/fsldma.c create mode 100644 drivers/dma/fsldma.h diff --git a/MAINTAINERS b/MAINTAINERS index fed09b54733..a0f78e76432 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1589,6 +1589,13 @@ L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) W: http://linux-fbdev.sourceforge.net/ S: Maintained +FREESCALE DMA DRIVER +P; Zhang Wei +M: wei.zhang@freescale.com +L: linuxppc-embedded@ozlabs.org +L: linux-kernel@vger.kernel.org +S: Maintained + FREESCALE SOC FS_ENET DRIVER P: Pantelis Antoniou M: pantelis.antoniou@gmail.com diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index a703deffb79..27340a7b19d 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -4,7 +4,7 @@ menuconfig DMADEVICES bool "DMA Engine support" - depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX + depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX || PPC depends on !HIGHMEM64G help DMA engines can do asynchronous data transfers without @@ -37,6 +37,23 @@ config INTEL_IOP_ADMA help Enable support for the Intel(R) IOP Series RAID engines. +config FSL_DMA + bool "Freescale MPC85xx/MPC83xx DMA support" + depends on PPC + select DMA_ENGINE + ---help--- + Enable support for the Freescale DMA engine. Now, it support + MPC8560/40, MPC8555, MPC8548 and MPC8641 processors. + The MPC8349, MPC8360 is also supported. + +config FSL_DMA_SELFTEST + bool "Enable the self test for each DMA channel" + depends on FSL_DMA + default y + ---help--- + Enable the self test for each DMA channel. A self test will be + performed after the channel probed to ensure the DMA works well. + config DMA_ENGINE bool diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index b152cd84e12..c8036d94590 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -3,3 +3,4 @@ obj-$(CONFIG_NET_DMA) += iovlock.o obj-$(CONFIG_INTEL_IOATDMA) += ioatdma.o ioatdma-objs := ioat.o ioat_dma.o ioat_dca.o obj-$(CONFIG_INTEL_IOP_ADMA) += iop-adma.o +obj-$(CONFIG_FSL_DMA) += fsldma.o diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c new file mode 100644 index 00000000000..902e852571a --- /dev/null +++ b/drivers/dma/fsldma.c @@ -0,0 +1,1068 @@ +/* + * Freescale MPC85xx, MPC83xx DMA Engine support + * + * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. + * + * Author: + * Zhang Wei , Jul 2007 + * Ebony Zhu , May 2007 + * + * Description: + * DMA engine driver for Freescale MPC8540 DMA controller, which is + * also fit for MPC8560, MPC8555, MPC8548, MPC8641, and etc. + * The support for MPC8349 DMA contorller is also added. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "fsldma.h" + +static void dma_init(struct fsl_dma_chan *fsl_chan) +{ + /* Reset the channel */ + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, 0, 32); + + switch (fsl_chan->feature & FSL_DMA_IP_MASK) { + case FSL_DMA_IP_85XX: + /* Set the channel to below modes: + * EIE - Error interrupt enable + * EOSIE - End of segments interrupt enable (basic mode) + * EOLNIE - End of links interrupt enable + */ + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, FSL_DMA_MR_EIE + | FSL_DMA_MR_EOLNIE | FSL_DMA_MR_EOSIE, 32); + break; + case FSL_DMA_IP_83XX: + /* Set the channel to below modes: + * EOTIE - End-of-transfer interrupt enable + */ + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, FSL_DMA_MR_EOTIE, + 32); + break; + } + +} + +static void set_sr(struct fsl_dma_chan *fsl_chan, dma_addr_t val) +{ + DMA_OUT(fsl_chan, &fsl_chan->reg_base->sr, val, 32); +} + +static dma_addr_t get_sr(struct fsl_dma_chan *fsl_chan) +{ + return DMA_IN(fsl_chan, &fsl_chan->reg_base->sr, 32); +} + +static void set_desc_cnt(struct fsl_dma_chan *fsl_chan, + struct fsl_dma_ld_hw *hw, u32 count) +{ + hw->count = CPU_TO_DMA(fsl_chan, count, 32); +} + +static void set_desc_src(struct fsl_dma_chan *fsl_chan, + struct fsl_dma_ld_hw *hw, dma_addr_t src) +{ + u64 snoop_bits; + + snoop_bits = ((fsl_chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX) + ? ((u64)FSL_DMA_SATR_SREADTYPE_SNOOP_READ << 32) : 0; + hw->src_addr = CPU_TO_DMA(fsl_chan, snoop_bits | src, 64); +} + +static void set_desc_dest(struct fsl_dma_chan *fsl_chan, + struct fsl_dma_ld_hw *hw, dma_addr_t dest) +{ + u64 snoop_bits; + + snoop_bits = ((fsl_chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX) + ? ((u64)FSL_DMA_DATR_DWRITETYPE_SNOOP_WRITE << 32) : 0; + hw->dst_addr = CPU_TO_DMA(fsl_chan, snoop_bits | dest, 64); +} + +static void set_desc_next(struct fsl_dma_chan *fsl_chan, + struct fsl_dma_ld_hw *hw, dma_addr_t next) +{ + u64 snoop_bits; + + snoop_bits = ((fsl_chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_83XX) + ? FSL_DMA_SNEN : 0; + hw->next_ln_addr = CPU_TO_DMA(fsl_chan, snoop_bits | next, 64); +} + +static void set_cdar(struct fsl_dma_chan *fsl_chan, dma_addr_t addr) +{ + DMA_OUT(fsl_chan, &fsl_chan->reg_base->cdar, addr | FSL_DMA_SNEN, 64); +} + +static dma_addr_t get_cdar(struct fsl_dma_chan *fsl_chan) +{ + return DMA_IN(fsl_chan, &fsl_chan->reg_base->cdar, 64) & ~FSL_DMA_SNEN; +} + +static void set_ndar(struct fsl_dma_chan *fsl_chan, dma_addr_t addr) +{ + DMA_OUT(fsl_chan, &fsl_chan->reg_base->ndar, addr, 64); +} + +static dma_addr_t get_ndar(struct fsl_dma_chan *fsl_chan) +{ + return DMA_IN(fsl_chan, &fsl_chan->reg_base->ndar, 64); +} + +static int dma_is_idle(struct fsl_dma_chan *fsl_chan) +{ + u32 sr = get_sr(fsl_chan); + return (!(sr & FSL_DMA_SR_CB)) || (sr & FSL_DMA_SR_CH); +} + +static void dma_start(struct fsl_dma_chan *fsl_chan) +{ + u32 mr_set = 0;; + + if (fsl_chan->feature & FSL_DMA_CHAN_PAUSE_EXT) { + DMA_OUT(fsl_chan, &fsl_chan->reg_base->bcr, 0, 32); + mr_set |= FSL_DMA_MR_EMP_EN; + } else + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, + DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) + & ~FSL_DMA_MR_EMP_EN, 32); + + if (fsl_chan->feature & FSL_DMA_CHAN_START_EXT) + mr_set |= FSL_DMA_MR_EMS_EN; + else + mr_set |= FSL_DMA_MR_CS; + + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, + DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) + | mr_set, 32); +} + +static void dma_halt(struct fsl_dma_chan *fsl_chan) +{ + int i = 0; + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, + DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) | FSL_DMA_MR_CA, + 32); + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, + DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) & ~(FSL_DMA_MR_CS + | FSL_DMA_MR_EMS_EN | FSL_DMA_MR_CA), 32); + + while (!dma_is_idle(fsl_chan) && (i++ < 100)) + udelay(10); + if (i >= 100 && !dma_is_idle(fsl_chan)) + dev_err(fsl_chan->dev, "DMA halt timeout!\n"); +} + +static void set_ld_eol(struct fsl_dma_chan *fsl_chan, + struct fsl_desc_sw *desc) +{ + desc->hw.next_ln_addr = CPU_TO_DMA(fsl_chan, + DMA_TO_CPU(fsl_chan, desc->hw.next_ln_addr, 64) | FSL_DMA_EOL, + 64); +} + +static void append_ld_queue(struct fsl_dma_chan *fsl_chan, + struct fsl_desc_sw *new_desc) +{ + struct fsl_desc_sw *queue_tail = to_fsl_desc(fsl_chan->ld_queue.prev); + + if (list_empty(&fsl_chan->ld_queue)) + return; + + /* Link to the new descriptor physical address and + * Enable End-of-segment interrupt for + * the last link descriptor. + * (the previous node's next link descriptor) + * + * For FSL_DMA_IP_83xx, the snoop enable bit need be set. + */ + queue_tail->hw.next_ln_addr = CPU_TO_DMA(fsl_chan, + new_desc->async_tx.phys | FSL_DMA_EOSIE | + (((fsl_chan->feature & FSL_DMA_IP_MASK) + == FSL_DMA_IP_83XX) ? FSL_DMA_SNEN : 0), 64); +} + +/** + * fsl_chan_set_src_loop_size - Set source address hold transfer size + * @fsl_chan : Freescale DMA channel + * @size : Address loop size, 0 for disable loop + * + * The set source address hold transfer size. The source + * address hold or loop transfer size is when the DMA transfer + * data from source address (SA), if the loop size is 4, the DMA will + * read data from SA, SA + 1, SA + 2, SA + 3, then loop back to SA, + * SA + 1 ... and so on. + */ +static void fsl_chan_set_src_loop_size(struct fsl_dma_chan *fsl_chan, int size) +{ + switch (size) { + case 0: + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, + DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) & + (~FSL_DMA_MR_SAHE), 32); + break; + case 1: + case 2: + case 4: + case 8: + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, + DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) | + FSL_DMA_MR_SAHE | (__ilog2(size) << 14), + 32); + break; + } +} + +/** + * fsl_chan_set_dest_loop_size - Set destination address hold transfer size + * @fsl_chan : Freescale DMA channel + * @size : Address loop size, 0 for disable loop + * + * The set destination address hold transfer size. The destination + * address hold or loop transfer size is when the DMA transfer + * data to destination address (TA), if the loop size is 4, the DMA will + * write data to TA, TA + 1, TA + 2, TA + 3, then loop back to TA, + * TA + 1 ... and so on. + */ +static void fsl_chan_set_dest_loop_size(struct fsl_dma_chan *fsl_chan, int size) +{ + switch (size) { + case 0: + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, + DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) & + (~FSL_DMA_MR_DAHE), 32); + break; + case 1: + case 2: + case 4: + case 8: + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, + DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) | + FSL_DMA_MR_DAHE | (__ilog2(size) << 16), + 32); + break; + } +} + +/** + * fsl_chan_toggle_ext_pause - Toggle channel external pause status + * @fsl_chan : Freescale DMA channel + * @size : Pause control size, 0 for disable external pause control. + * The maximum is 1024. + * + * The Freescale DMA channel can be controlled by the external + * signal DREQ#. The pause control size is how many bytes are allowed + * to transfer before pausing the channel, after which a new assertion + * of DREQ# resumes channel operation. + */ +static void fsl_chan_toggle_ext_pause(struct fsl_dma_chan *fsl_chan, int size) +{ + if (size > 1024) + return; + + if (size) { + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, + DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) + | ((__ilog2(size) << 24) & 0x0f000000), + 32); + fsl_chan->feature |= FSL_DMA_CHAN_PAUSE_EXT; + } else + fsl_chan->feature &= ~FSL_DMA_CHAN_PAUSE_EXT; +} + +/** + * fsl_chan_toggle_ext_start - Toggle channel external start status + * @fsl_chan : Freescale DMA channel + * @enable : 0 is disabled, 1 is enabled. + * + * If enable the external start, the channel can be started by an + * external DMA start pin. So the dma_start() does not start the + * transfer immediately. The DMA channel will wait for the + * control pin asserted. + */ +static void fsl_chan_toggle_ext_start(struct fsl_dma_chan *fsl_chan, int enable) +{ + if (enable) + fsl_chan->feature |= FSL_DMA_CHAN_START_EXT; + else + fsl_chan->feature &= ~FSL_DMA_CHAN_START_EXT; +} + +static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx) +{ + struct fsl_desc_sw *desc = tx_to_fsl_desc(tx); + struct fsl_dma_chan *fsl_chan = to_fsl_chan(tx->chan); + unsigned long flags; + dma_cookie_t cookie; + + /* cookie increment and adding to ld_queue must be atomic */ + spin_lock_irqsave(&fsl_chan->desc_lock, flags); + + cookie = fsl_chan->common.cookie; + cookie++; + if (cookie < 0) + cookie = 1; + desc->async_tx.cookie = cookie; + fsl_chan->common.cookie = desc->async_tx.cookie; + + append_ld_queue(fsl_chan, desc); + list_splice_init(&desc->async_tx.tx_list, fsl_chan->ld_queue.prev); + + spin_unlock_irqrestore(&fsl_chan->desc_lock, flags); + + return cookie; +} + +/** + * fsl_dma_alloc_descriptor - Allocate descriptor from channel's DMA pool. + * @fsl_chan : Freescale DMA channel + * + * Return - The descriptor allocated. NULL for failed. + */ +static struct fsl_desc_sw *fsl_dma_alloc_descriptor( + struct fsl_dma_chan *fsl_chan) +{ + dma_addr_t pdesc; + struct fsl_desc_sw *desc_sw; + + desc_sw = dma_pool_alloc(fsl_chan->desc_pool, GFP_ATOMIC, &pdesc); + if (desc_sw) { + memset(desc_sw, 0, sizeof(struct fsl_desc_sw)); + dma_async_tx_descriptor_init(&desc_sw->async_tx, + &fsl_chan->common); + desc_sw->async_tx.tx_submit = fsl_dma_tx_submit; + INIT_LIST_HEAD(&desc_sw->async_tx.tx_list); + desc_sw->async_tx.phys = pdesc; + } + + return desc_sw; +} + + +/** + * fsl_dma_alloc_chan_resources - Allocate resources for DMA channel. + * @fsl_chan : Freescale DMA channel + * + * This function will create a dma pool for descriptor allocation. + * + * Return - The number of descriptors allocated. + */ +static int fsl_dma_alloc_chan_resources(struct dma_chan *chan) +{ + struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); + LIST_HEAD(tmp_list); + + /* We need the descriptor to be aligned to 32bytes + * for meeting FSL DMA specification requirement. + */ + fsl_chan->desc_pool = dma_pool_create("fsl_dma_engine_desc_pool", + fsl_chan->dev, sizeof(struct fsl_desc_sw), + 32, 0); + if (!fsl_chan->desc_pool) { + dev_err(fsl_chan->dev, "No memory for channel %d " + "descriptor dma pool.\n", fsl_chan->id); + return 0; + } + + return 1; +} + +/** + * fsl_dma_free_chan_resources - Free all resources of the channel. + * @fsl_chan : Freescale DMA channel + */ +static void fsl_dma_free_chan_resources(struct dma_chan *chan) +{ + struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); + struct fsl_desc_sw *desc, *_desc; + unsigned long flags; + + dev_dbg(fsl_chan->dev, "Free all channel resources.\n"); + spin_lock_irqsave(&fsl_chan->desc_lock, flags); + list_for_each_entry_safe(desc, _desc, &fsl_chan->ld_queue, node) { +#ifdef FSL_DMA_LD_DEBUG + dev_dbg(fsl_chan->dev, + "LD %p will be released.\n", desc); +#endif + list_del(&desc->node); + /* free link descriptor */ + dma_pool_free(fsl_chan->desc_pool, desc, desc->async_tx.phys); + } + spin_unlock_irqrestore(&fsl_chan->desc_lock, flags); + dma_pool_destroy(fsl_chan->desc_pool); +} + +static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy( + struct dma_chan *chan, dma_addr_t dma_dest, dma_addr_t dma_src, + size_t len, unsigned long flags) +{ + struct fsl_dma_chan *fsl_chan; + struct fsl_desc_sw *first = NULL, *prev = NULL, *new; + size_t copy; + LIST_HEAD(link_chain); + + if (!chan) + return NULL; + + if (!len) + return NULL; + + fsl_chan = to_fsl_chan(chan); + + do { + + /* Allocate the link descriptor from DMA pool */ + new = fsl_dma_alloc_descriptor(fsl_chan); + if (!new) { + dev_err(fsl_chan->dev, + "No free memory for link descriptor\n"); + return NULL; + } +#ifdef FSL_DMA_LD_DEBUG + dev_dbg(fsl_chan->dev, "new link desc alloc %p\n", new); +#endif + + copy = min(len, FSL_DMA_BCR_MAX_CNT); + + set_desc_cnt(fsl_chan, &new->hw, copy); + set_desc_src(fsl_chan, &new->hw, dma_src); + set_desc_dest(fsl_chan, &new->hw, dma_dest); + + if (!first) + first = new; + else + set_desc_next(fsl_chan, &prev->hw, new->async_tx.phys); + + new->async_tx.cookie = 0; + new->async_tx.ack = 1; + + prev = new; + len -= copy; + dma_src += copy; + dma_dest += copy; + + /* Insert the link descriptor to the LD ring */ + list_add_tail(&new->node, &first->async_tx.tx_list); + } while (len); + + new->async_tx.ack = 0; /* client is in control of this ack */ + new->async_tx.cookie = -EBUSY; + + /* Set End-of-link to the last link descriptor of new list*/ + set_ld_eol(fsl_chan, new); + + return first ? &first->async_tx : NULL; +} + +/** + * fsl_dma_update_completed_cookie - Update the completed cookie. + * @fsl_chan : Freescale DMA channel + */ +static void fsl_dma_update_completed_cookie(struct fsl_dma_chan *fsl_chan) +{ + struct fsl_desc_sw *cur_desc, *desc; + dma_addr_t ld_phy; + + ld_phy = get_cdar(fsl_chan) & FSL_DMA_NLDA_MASK; + + if (ld_phy) { + cur_desc = NULL; + list_for_each_entry(desc, &fsl_chan->ld_queue, node) + if (desc->async_tx.phys == ld_phy) { + cur_desc = desc; + break; + } + + if (cur_desc && cur_desc->async_tx.cookie) { + if (dma_is_idle(fsl_chan)) + fsl_chan->completed_cookie = + cur_desc->async_tx.cookie; + else + fsl_chan->completed_cookie = + cur_desc->async_tx.cookie - 1; + } + } +} + +/** + * fsl_chan_ld_cleanup - Clean up link descriptors + * @fsl_chan : Freescale DMA channel + * + * This function clean up the ld_queue of DMA channel. + * If 'in_intr' is set, the function will move the link descriptor to + * the recycle list. Otherwise, free it directly. + */ +static void fsl_chan_ld_cleanup(struct fsl_dma_chan *fsl_chan) +{ + struct fsl_desc_sw *desc, *_desc; + unsigned long flags; + + spin_lock_irqsave(&fsl_chan->desc_lock, flags); + + fsl_dma_update_completed_cookie(fsl_chan); + dev_dbg(fsl_chan->dev, "chan completed_cookie = %d\n", + fsl_chan->completed_cookie); + list_for_each_entry_safe(desc, _desc, &fsl_chan->ld_queue, node) { + dma_async_tx_callback callback; + void *callback_param; + + if (dma_async_is_complete(desc->async_tx.cookie, + fsl_chan->completed_cookie, fsl_chan->common.cookie) + == DMA_IN_PROGRESS) + break; + + callback = desc->async_tx.callback; + callback_param = desc->async_tx.callback_param; + + /* Remove from ld_queue list */ + list_del(&desc->node); + + dev_dbg(fsl_chan->dev, "link descriptor %p will be recycle.\n", + desc); + dma_pool_free(fsl_chan->desc_pool, desc, desc->async_tx.phys); + + /* Run the link descriptor callback function */ + if (callback) { + spin_unlock_irqrestore(&fsl_chan->desc_lock, flags); + dev_dbg(fsl_chan->dev, "link descriptor %p callback\n", + desc); + callback(callback_param); + spin_lock_irqsave(&fsl_chan->desc_lock, flags); + } + } + spin_unlock_irqrestore(&fsl_chan->desc_lock, flags); +} + +/** + * fsl_chan_xfer_ld_queue - Transfer link descriptors in channel ld_queue. + * @fsl_chan : Freescale DMA channel + */ +static void fsl_chan_xfer_ld_queue(struct fsl_dma_chan *fsl_chan) +{ + struct list_head *ld_node; + dma_addr_t next_dest_addr; + unsigned long flags; + + if (!dma_is_idle(fsl_chan)) + return; + + dma_halt(fsl_chan); + + /* If there are some link descriptors + * not transfered in queue. We need to start it. + */ + spin_lock_irqsave(&fsl_chan->desc_lock, flags); + + /* Find the first un-transfer desciptor */ + for (ld_node = fsl_chan->ld_queue.next; + (ld_node != &fsl_chan->ld_queue) + && (dma_async_is_complete( + to_fsl_desc(ld_node)->async_tx.cookie, + fsl_chan->completed_cookie, + fsl_chan->common.cookie) == DMA_SUCCESS); + ld_node = ld_node->next); + + spin_unlock_irqrestore(&fsl_chan->desc_lock, flags); + + if (ld_node != &fsl_chan->ld_queue) { + /* Get the ld start address from ld_queue */ + next_dest_addr = to_fsl_desc(ld_node)->async_tx.phys; + dev_dbg(fsl_chan->dev, "xfer LDs staring from 0x%016llx\n", + (u64)next_dest_addr); + set_cdar(fsl_chan, next_dest_addr); + dma_start(fsl_chan); + } else { + set_cdar(fsl_chan, 0); + set_ndar(fsl_chan, 0); + } +} + +/** + * fsl_dma_memcpy_issue_pending - Issue the DMA start command + * @fsl_chan : Freescale DMA channel + */ +static void fsl_dma_memcpy_issue_pending(struct dma_chan *chan) +{ + struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); + +#ifdef FSL_DMA_LD_DEBUG + struct fsl_desc_sw *ld; + unsigned long flags; + + spin_lock_irqsave(&fsl_chan->desc_lock, flags); + if (list_empty(&fsl_chan->ld_queue)) { + spin_unlock_irqrestore(&fsl_chan->desc_lock, flags); + return; + } + + dev_dbg(fsl_chan->dev, "--memcpy issue--\n"); + list_for_each_entry(ld, &fsl_chan->ld_queue, node) { + int i; + dev_dbg(fsl_chan->dev, "Ch %d, LD %08x\n", + fsl_chan->id, ld->async_tx.phys); + for (i = 0; i < 8; i++) + dev_dbg(fsl_chan->dev, "LD offset %d: %08x\n", + i, *(((u32 *)&ld->hw) + i)); + } + dev_dbg(fsl_chan->dev, "----------------\n"); + spin_unlock_irqrestore(&fsl_chan->desc_lock, flags); +#endif + + fsl_chan_xfer_ld_queue(fsl_chan); +} + +static void fsl_dma_dependency_added(struct dma_chan *chan) +{ + struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); + + fsl_chan_ld_cleanup(fsl_chan); +} + +/** + * fsl_dma_is_complete - Determine the DMA status + * @fsl_chan : Freescale DMA channel + */ +static enum dma_status fsl_dma_is_complete(struct dma_chan *chan, + dma_cookie_t cookie, + dma_cookie_t *done, + dma_cookie_t *used) +{ + struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); + dma_cookie_t last_used; + dma_cookie_t last_complete; + + fsl_chan_ld_cleanup(fsl_chan); + + last_used = chan->cookie; + last_complete = fsl_chan->completed_cookie; + + if (done) + *done = last_complete; + + if (used) + *used = last_used; + + return dma_async_is_complete(cookie, last_complete, last_used); +} + +static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data) +{ + struct fsl_dma_chan *fsl_chan = (struct fsl_dma_chan *)data; + dma_addr_t stat; + + stat = get_sr(fsl_chan); + dev_dbg(fsl_chan->dev, "event: channel %d, stat = 0x%x\n", + fsl_chan->id, stat); + set_sr(fsl_chan, stat); /* Clear the event register */ + + stat &= ~(FSL_DMA_SR_CB | FSL_DMA_SR_CH); + if (!stat) + return IRQ_NONE; + + if (stat & FSL_DMA_SR_TE) + dev_err(fsl_chan->dev, "Transfer Error!\n"); + + /* If the link descriptor segment transfer finishes, + * we will recycle the used descriptor. + */ + if (stat & FSL_DMA_SR_EOSI) { + dev_dbg(fsl_chan->dev, "event: End-of-segments INT\n"); + dev_dbg(fsl_chan->dev, "event: clndar 0x%016llx, " + "nlndar 0x%016llx\n", (u64)get_cdar(fsl_chan), + (u64)get_ndar(fsl_chan)); + stat &= ~FSL_DMA_SR_EOSI; + fsl_chan_ld_cleanup(fsl_chan); + } + + /* If it current transfer is the end-of-transfer, + * we should clear the Channel Start bit for + * prepare next transfer. + */ + if (stat & (FSL_DMA_SR_EOLNI | FSL_DMA_SR_EOCDI)) { + dev_dbg(fsl_chan->dev, "event: End-of-link INT\n"); + stat &= ~FSL_DMA_SR_EOLNI; + fsl_chan_xfer_ld_queue(fsl_chan); + } + + if (stat) + dev_dbg(fsl_chan->dev, "event: unhandled sr 0x%02x\n", + stat); + + dev_dbg(fsl_chan->dev, "event: Exit\n"); + tasklet_schedule(&fsl_chan->tasklet); + return IRQ_HANDLED; +} + +static irqreturn_t fsl_dma_do_interrupt(int irq, void *data) +{ + struct fsl_dma_device *fdev = (struct fsl_dma_device *)data; + u32 gsr; + int ch_nr; + + gsr = (fdev->feature & FSL_DMA_BIG_ENDIAN) ? in_be32(fdev->reg_base) + : in_le32(fdev->reg_base); + ch_nr = (32 - ffs(gsr)) / 8; + + return fdev->chan[ch_nr] ? fsl_dma_chan_do_interrupt(irq, + fdev->chan[ch_nr]) : IRQ_NONE; +} + +static void dma_do_tasklet(unsigned long data) +{ + struct fsl_dma_chan *fsl_chan = (struct fsl_dma_chan *)data; + fsl_chan_ld_cleanup(fsl_chan); +} + +static void fsl_dma_callback_test(struct fsl_dma_chan *fsl_chan) +{ + if (fsl_chan) + dev_info(fsl_chan->dev, "selftest: callback is ok!\n"); +} + +static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan) +{ + struct dma_chan *chan; + int err = 0; + dma_addr_t dma_dest, dma_src; + dma_cookie_t cookie; + u8 *src, *dest; + int i; + size_t test_size; + struct dma_async_tx_descriptor *tx1, *tx2, *tx3; + + test_size = 4096; + + src = kmalloc(test_size * 2, GFP_KERNEL); + if (!src) { + dev_err(fsl_chan->dev, + "selftest: Cannot alloc memory for test!\n"); + err = -ENOMEM; + goto out; + } + + dest = src + test_size; + + for (i = 0; i < test_size; i++) + src[i] = (u8) i; + + chan = &fsl_chan->common; + + if (fsl_dma_alloc_chan_resources(chan) < 1) { + dev_err(fsl_chan->dev, + "selftest: Cannot alloc resources for DMA\n"); + err = -ENODEV; + goto out; + } + + /* TX 1 */ + dma_src = dma_map_single(fsl_chan->dev, src, test_size / 2, + DMA_TO_DEVICE); + dma_dest = dma_map_single(fsl_chan->dev, dest, test_size / 2, + DMA_FROM_DEVICE); + tx1 = fsl_dma_prep_memcpy(chan, dma_dest, dma_src, test_size / 2, 0); + async_tx_ack(tx1); + + cookie = fsl_dma_tx_submit(tx1); + fsl_dma_memcpy_issue_pending(chan); + msleep(2); + + if (fsl_dma_is_complete(chan, cookie, NULL, NULL) != DMA_SUCCESS) { + dev_err(fsl_chan->dev, "selftest: Time out!\n"); + err = -ENODEV; + goto out; + } + + /* Test free and re-alloc channel resources */ + fsl_dma_free_chan_resources(chan); + + if (fsl_dma_alloc_chan_resources(chan) < 1) { + dev_err(fsl_chan->dev, + "selftest: Cannot alloc resources for DMA\n"); + err = -ENODEV; + goto free_resources; + } + + /* Continue to test + * TX 2 + */ + dma_src = dma_map_single(fsl_chan->dev, src + test_size / 2, + test_size / 4, DMA_TO_DEVICE); + dma_dest = dma_map_single(fsl_chan->dev, dest + test_size / 2, + test_size / 4, DMA_FROM_DEVICE); + tx2 = fsl_dma_prep_memcpy(chan, dma_dest, dma_src, test_size / 4, 0); + async_tx_ack(tx2); + + /* TX 3 */ + dma_src = dma_map_single(fsl_chan->dev, src + test_size * 3 / 4, + test_size / 4, DMA_TO_DEVICE); + dma_dest = dma_map_single(fsl_chan->dev, dest + test_size * 3 / 4, + test_size / 4, DMA_FROM_DEVICE); + tx3 = fsl_dma_prep_memcpy(chan, dma_dest, dma_src, test_size / 4, 0); + async_tx_ack(tx3); + + /* Test exchanging the prepared tx sort */ + cookie = fsl_dma_tx_submit(tx3); + cookie = fsl_dma_tx_submit(tx2); + +#ifdef FSL_DMA_CALLBACKTEST + if (dma_has_cap(DMA_INTERRUPT, ((struct fsl_dma_device *) + dev_get_drvdata(fsl_chan->dev->parent))->common.cap_mask)) { + tx3->callback = fsl_dma_callback_test; + tx3->callback_param = fsl_chan; + } +#endif + fsl_dma_memcpy_issue_pending(chan); + msleep(2); + + if (fsl_dma_is_complete(chan, cookie, NULL, NULL) != DMA_SUCCESS) { + dev_err(fsl_chan->dev, "selftest: Time out!\n"); + err = -ENODEV; + goto free_resources; + } + + err = memcmp(src, dest, test_size); + if (err) { + for (i = 0; (*(src + i) == *(dest + i)) && (i < test_size); + i++); + dev_err(fsl_chan->dev, "selftest: Test failed, data %d/%d is " + "error! src 0x%x, dest 0x%x\n", + i, test_size, *(src + i), *(dest + i)); + } + +free_resources: + fsl_dma_free_chan_resources(chan); +out: + kfree(src); + return err; +} + +static int __devinit of_fsl_dma_chan_probe(struct of_device *dev, + const struct of_device_id *match) +{ + struct fsl_dma_device *fdev; + struct fsl_dma_chan *new_fsl_chan; + int err; + + fdev = dev_get_drvdata(dev->dev.parent); + BUG_ON(!fdev); + + /* alloc channel */ + new_fsl_chan = kzalloc(sizeof(struct fsl_dma_chan), GFP_KERNEL); + if (!new_fsl_chan) { + dev_err(&dev->dev, "No free memory for allocating " + "dma channels!\n"); + err = -ENOMEM; + goto err; + } + + /* get dma channel register base */ + err = of_address_to_resource(dev->node, 0, &new_fsl_chan->reg); + if (err) { + dev_err(&dev->dev, "Can't get %s property 'reg'\n", + dev->node->full_name); + goto err; + } + + new_fsl_chan->feature = *(u32 *)match->data; + + if (!fdev->feature) + fdev->feature = new_fsl_chan->feature; + + /* If the DMA device's feature is different than its channels', + * report the bug. + */ + WARN_ON(fdev->feature != new_fsl_chan->feature); + + new_fsl_chan->dev = &dev->dev; + new_fsl_chan->reg_base = ioremap(new_fsl_chan->reg.start, + new_fsl_chan->reg.end - new_fsl_chan->reg.start + 1); + + new_fsl_chan->id = ((new_fsl_chan->reg.start - 0x100) & 0xfff) >> 7; + if (new_fsl_chan->id > FSL_DMA_MAX_CHANS_PER_DEVICE) { + dev_err(&dev->dev, "There is no %d channel!\n", + new_fsl_chan->id); + err = -EINVAL; + goto err; + } + fdev->chan[new_fsl_chan->id] = new_fsl_chan; + tasklet_init(&new_fsl_chan->tasklet, dma_do_tasklet, + (unsigned long)new_fsl_chan); + + /* Init the channel */ + dma_init(new_fsl_chan); + + /* Clear cdar registers */ + set_cdar(new_fsl_chan, 0); + + switch (new_fsl_chan->feature & FSL_DMA_IP_MASK) { + case FSL_DMA_IP_85XX: + new_fsl_chan->toggle_ext_start = fsl_chan_toggle_ext_start; + new_fsl_chan->toggle_ext_pause = fsl_chan_toggle_ext_pause; + case FSL_DMA_IP_83XX: + new_fsl_chan->set_src_loop_size = fsl_chan_set_src_loop_size; + new_fsl_chan->set_dest_loop_size = fsl_chan_set_dest_loop_size; + } + + spin_lock_init(&new_fsl_chan->desc_lock); + INIT_LIST_HEAD(&new_fsl_chan->ld_queue); + + new_fsl_chan->common.device = &fdev->common; + + /* Add the channel to DMA device channel list */ + list_add_tail(&new_fsl_chan->common.device_node, + &fdev->common.channels); + fdev->common.chancnt++; + + new_fsl_chan->irq = irq_of_parse_and_map(dev->node, 0); + if (new_fsl_chan->irq != NO_IRQ) { + err = request_irq(new_fsl_chan->irq, + &fsl_dma_chan_do_interrupt, IRQF_SHARED, + "fsldma-channel", new_fsl_chan); + if (err) { + dev_err(&dev->dev, "DMA channel %s request_irq error " + "with return %d\n", dev->node->full_name, err); + goto err; + } + } + +#ifdef CONFIG_FSL_DMA_SELFTEST + err = fsl_dma_self_test(new_fsl_chan); + if (err) + goto err; +#endif + + dev_info(&dev->dev, "#%d (%s), irq %d\n", new_fsl_chan->id, + match->compatible, new_fsl_chan->irq); + + return 0; +err: + dma_halt(new_fsl_chan); + iounmap(new_fsl_chan->reg_base); + free_irq(new_fsl_chan->irq, new_fsl_chan); + list_del(&new_fsl_chan->common.device_node); + kfree(new_fsl_chan); + return err; +} + +const u32 mpc8540_dma_ip_feature = FSL_DMA_IP_85XX | FSL_DMA_BIG_ENDIAN; +const u32 mpc8349_dma_ip_feature = FSL_DMA_IP_83XX | FSL_DMA_LITTLE_ENDIAN; + +static struct of_device_id of_fsl_dma_chan_ids[] = { + { + .compatible = "fsl,mpc8540-dma-channel", + .data = (void *)&mpc8540_dma_ip_feature, + }, + { + .compatible = "fsl,mpc8349-dma-channel", + .data = (void *)&mpc8349_dma_ip_feature, + }, + {} +}; + +static struct of_platform_driver of_fsl_dma_chan_driver = { + .name = "of-fsl-dma-channel", + .match_table = of_fsl_dma_chan_ids, + .probe = of_fsl_dma_chan_probe, +}; + +static __init int of_fsl_dma_chan_init(void) +{ + return of_register_platform_driver(&of_fsl_dma_chan_driver); +} + +static int __devinit of_fsl_dma_probe(struct of_device *dev, + const struct of_device_id *match) +{ + int err; + unsigned int irq; + struct fsl_dma_device *fdev; + + fdev = kzalloc(sizeof(struct fsl_dma_device), GFP_KERNEL); + if (!fdev) { + dev_err(&dev->dev, "No enough memory for 'priv'\n"); + err = -ENOMEM; + goto err; + } + fdev->dev = &dev->dev; + INIT_LIST_HEAD(&fdev->common.channels); + + /* get DMA controller register base */ + err = of_address_to_resource(dev->node, 0, &fdev->reg); + if (err) { + dev_err(&dev->dev, "Can't get %s property 'reg'\n", + dev->node->full_name); + goto err; + } + + dev_info(&dev->dev, "Probe the Freescale DMA driver for %s " + "controller at 0x%08x...\n", + match->compatible, fdev->reg.start); + fdev->reg_base = ioremap(fdev->reg.start, fdev->reg.end + - fdev->reg.start + 1); + + dma_cap_set(DMA_MEMCPY, fdev->common.cap_mask); + dma_cap_set(DMA_INTERRUPT, fdev->common.cap_mask); + fdev->common.device_alloc_chan_resources = fsl_dma_alloc_chan_resources; + fdev->common.device_free_chan_resources = fsl_dma_free_chan_resources; + fdev->common.device_prep_dma_memcpy = fsl_dma_prep_memcpy; + fdev->common.device_is_tx_complete = fsl_dma_is_complete; + fdev->common.device_issue_pending = fsl_dma_memcpy_issue_pending; + fdev->common.device_dependency_added = fsl_dma_dependency_added; + fdev->common.dev = &dev->dev; + + irq = irq_of_parse_and_map(dev->node, 0); + if (irq != NO_IRQ) { + err = request_irq(irq, &fsl_dma_do_interrupt, IRQF_SHARED, + "fsldma-device", fdev); + if (err) { + dev_err(&dev->dev, "DMA device request_irq error " + "with return %d\n", err); + goto err; + } + } + + dev_set_drvdata(&(dev->dev), fdev); + of_platform_bus_probe(dev->node, of_fsl_dma_chan_ids, &dev->dev); + + dma_async_device_register(&fdev->common); + return 0; + +err: + iounmap(fdev->reg_base); + kfree(fdev); + return err; +} + +static struct of_device_id of_fsl_dma_ids[] = { + { .compatible = "fsl,mpc8540-dma", }, + { .compatible = "fsl,mpc8349-dma", }, + {} +}; + +static struct of_platform_driver of_fsl_dma_driver = { + .name = "of-fsl-dma", + .match_table = of_fsl_dma_ids, + .probe = of_fsl_dma_probe, +}; + +static __init int of_fsl_dma_init(void) +{ + return of_register_platform_driver(&of_fsl_dma_driver); +} + +subsys_initcall(of_fsl_dma_chan_init); +subsys_initcall(of_fsl_dma_init); diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h new file mode 100644 index 00000000000..ba78c42121b --- /dev/null +++ b/drivers/dma/fsldma.h @@ -0,0 +1,189 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. + * + * Author: + * Zhang Wei , Jul 2007 + * Ebony Zhu , May 2007 + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#ifndef __DMA_FSLDMA_H +#define __DMA_FSLDMA_H + +#include +#include +#include + +/* Define data structures needed by Freescale + * MPC8540 and MPC8349 DMA controller. + */ +#define FSL_DMA_MR_CS 0x00000001 +#define FSL_DMA_MR_CC 0x00000002 +#define FSL_DMA_MR_CA 0x00000008 +#define FSL_DMA_MR_EIE 0x00000040 +#define FSL_DMA_MR_XFE 0x00000020 +#define FSL_DMA_MR_EOLNIE 0x00000100 +#define FSL_DMA_MR_EOLSIE 0x00000080 +#define FSL_DMA_MR_EOSIE 0x00000200 +#define FSL_DMA_MR_CDSM 0x00000010 +#define FSL_DMA_MR_CTM 0x00000004 +#define FSL_DMA_MR_EMP_EN 0x00200000 +#define FSL_DMA_MR_EMS_EN 0x00040000 +#define FSL_DMA_MR_DAHE 0x00002000 +#define FSL_DMA_MR_SAHE 0x00001000 + +/* Special MR definition for MPC8349 */ +#define FSL_DMA_MR_EOTIE 0x00000080 + +#define FSL_DMA_SR_CH 0x00000020 +#define FSL_DMA_SR_CB 0x00000004 +#define FSL_DMA_SR_TE 0x00000080 +#define FSL_DMA_SR_EOSI 0x00000002 +#define FSL_DMA_SR_EOLSI 0x00000001 +#define FSL_DMA_SR_EOCDI 0x00000001 +#define FSL_DMA_SR_EOLNI 0x00000008 + +#define FSL_DMA_SATR_SBPATMU 0x20000000 +#define FSL_DMA_SATR_STRANSINT_RIO 0x00c00000 +#define FSL_DMA_SATR_SREADTYPE_SNOOP_READ 0x00050000 +#define FSL_DMA_SATR_SREADTYPE_BP_IORH 0x00020000 +#define FSL_DMA_SATR_SREADTYPE_BP_NREAD 0x00040000 +#define FSL_DMA_SATR_SREADTYPE_BP_MREAD 0x00070000 + +#define FSL_DMA_DATR_DBPATMU 0x20000000 +#define FSL_DMA_DATR_DTRANSINT_RIO 0x00c00000 +#define FSL_DMA_DATR_DWRITETYPE_SNOOP_WRITE 0x00050000 +#define FSL_DMA_DATR_DWRITETYPE_BP_FLUSH 0x00010000 + +#define FSL_DMA_EOL ((u64)0x1) +#define FSL_DMA_SNEN ((u64)0x10) +#define FSL_DMA_EOSIE 0x8 +#define FSL_DMA_NLDA_MASK (~(u64)0x1f) + +#define FSL_DMA_BCR_MAX_CNT 0x03ffffffu + +#define FSL_DMA_DGSR_TE 0x80 +#define FSL_DMA_DGSR_CH 0x20 +#define FSL_DMA_DGSR_PE 0x10 +#define FSL_DMA_DGSR_EOLNI 0x08 +#define FSL_DMA_DGSR_CB 0x04 +#define FSL_DMA_DGSR_EOSI 0x02 +#define FSL_DMA_DGSR_EOLSI 0x01 + +struct fsl_dma_ld_hw { + u64 __bitwise src_addr; + u64 __bitwise dst_addr; + u64 __bitwise next_ln_addr; + u32 __bitwise count; + u32 __bitwise reserve; +} __attribute__((aligned(32))); + +struct fsl_desc_sw { + struct fsl_dma_ld_hw hw; + struct list_head node; + struct dma_async_tx_descriptor async_tx; + struct list_head *ld; + void *priv; +} __attribute__((aligned(32))); + +struct fsl_dma_chan_regs { + u32 __bitwise mr; /* 0x00 - Mode Register */ + u32 __bitwise sr; /* 0x04 - Status Register */ + u64 __bitwise cdar; /* 0x08 - Current descriptor address register */ + u64 __bitwise sar; /* 0x10 - Source Address Register */ + u64 __bitwise dar; /* 0x18 - Destination Address Register */ + u32 __bitwise bcr; /* 0x20 - Byte Count Register */ + u64 __bitwise ndar; /* 0x24 - Next Descriptor Address Register */ +}; + +struct fsl_dma_chan; +#define FSL_DMA_MAX_CHANS_PER_DEVICE 4 + +struct fsl_dma_device { + void __iomem *reg_base; /* DGSR register base */ + struct resource reg; /* Resource for register */ + struct device *dev; + struct dma_device common; + struct fsl_dma_chan *chan[FSL_DMA_MAX_CHANS_PER_DEVICE]; + u32 feature; /* The same as DMA channels */ +}; + +/* Define macros for fsl_dma_chan->feature property */ +#define FSL_DMA_LITTLE_ENDIAN 0x00000000 +#define FSL_DMA_BIG_ENDIAN 0x00000001 + +#define FSL_DMA_IP_MASK 0x00000ff0 +#define FSL_DMA_IP_85XX 0x00000010 +#define FSL_DMA_IP_83XX 0x00000020 + +#define FSL_DMA_CHAN_PAUSE_EXT 0x00001000 +#define FSL_DMA_CHAN_START_EXT 0x00002000 + +struct fsl_dma_chan { + struct fsl_dma_chan_regs __iomem *reg_base; + dma_cookie_t completed_cookie; /* The maximum cookie completed */ + spinlock_t desc_lock; /* Descriptor operation lock */ + struct list_head ld_queue; /* Link descriptors queue */ + struct dma_chan common; /* DMA common channel */ + struct dma_pool *desc_pool; /* Descriptors pool */ + struct device *dev; /* Channel device */ + struct resource reg; /* Resource for register */ + int irq; /* Channel IRQ */ + int id; /* Raw id of this channel */ + struct tasklet_struct tasklet; + u32 feature; + + void (*toggle_ext_pause)(struct fsl_dma_chan *fsl_chan, int size); + void (*toggle_ext_start)(struct fsl_dma_chan *fsl_chan, int enable); + void (*set_src_loop_size)(struct fsl_dma_chan *fsl_chan, int size); + void (*set_dest_loop_size)(struct fsl_dma_chan *fsl_chan, int size); +}; + +#define to_fsl_chan(chan) container_of(chan, struct fsl_dma_chan, common) +#define to_fsl_desc(lh) container_of(lh, struct fsl_desc_sw, node) +#define tx_to_fsl_desc(tx) container_of(tx, struct fsl_desc_sw, async_tx) + +#ifndef __powerpc64__ +static u64 in_be64(const u64 __iomem *addr) +{ + return ((u64)in_be32((u32 *)addr) << 32) | (in_be32((u32 *)addr + 1)); +} + +static void out_be64(u64 __iomem *addr, u64 val) +{ + out_be32((u32 *)addr, val >> 32); + out_be32((u32 *)addr + 1, (u32)val); +} + +/* There is no asm instructions for 64 bits reverse loads and stores */ +static u64 in_le64(const u64 __iomem *addr) +{ + return ((u64)in_le32((u32 *)addr + 1) << 32) | (in_le32((u32 *)addr)); +} + +static void out_le64(u64 __iomem *addr, u64 val) +{ + out_le32((u32 *)addr + 1, val >> 32); + out_le32((u32 *)addr, (u32)val); +} +#endif + +#define DMA_IN(fsl_chan, addr, width) \ + (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ? \ + in_be##width(addr) : in_le##width(addr)) +#define DMA_OUT(fsl_chan, addr, val, width) \ + (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ? \ + out_be##width(addr, val) : out_le##width(addr, val)) + +#define DMA_TO_CPU(fsl_chan, d, width) \ + (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ? \ + be##width##_to_cpu(d) : le##width##_to_cpu(d)) +#define CPU_TO_DMA(fsl_chan, c, width) \ + (((fsl_chan)->feature & FSL_DMA_BIG_ENDIAN) ? \ + cpu_to_be##width(c) : cpu_to_le##width(c)) + +#endif /* __DMA_FSLDMA_H */ -- GitLab From 222ccf9ab838a1ca7163969fabd2cddc10403fb5 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 1 Mar 2008 07:51:17 -0700 Subject: [PATCH 368/923] fsldma: do not cleanup descriptors in hardirq context "Cleaning" descriptors involves calling pending callbacks and clients assume that their callback will only ever happen in softirq context. Delay cleanup to the tasklet. Signed-off-by: Dan Williams Acked-by: Zhang Wei --- drivers/dma/fsldma.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 902e852571a..cc9a68158d9 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -685,7 +685,6 @@ static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data) "nlndar 0x%016llx\n", (u64)get_cdar(fsl_chan), (u64)get_ndar(fsl_chan)); stat &= ~FSL_DMA_SR_EOSI; - fsl_chan_ld_cleanup(fsl_chan); } /* If it current transfer is the end-of-transfer, -- GitLab From ec8670f1f795badedaa056a3a3245b9b82201747 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 1 Mar 2008 07:51:29 -0700 Subject: [PATCH 369/923] dmaengine: fix sparse warning include/linux/dmaengine.h:364:2: warning: returning void-valued expression Signed-off-by: Dan Williams --- include/linux/dmaengine.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index acbb364674f..261e43a4c87 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -366,7 +366,7 @@ __dma_has_cap(enum dma_transaction_type tx_type, dma_cap_mask_t *srcp) */ static inline void dma_async_issue_pending(struct dma_chan *chan) { - return chan->device->device_issue_pending(chan); + chan->device->device_issue_pending(chan); } #define dma_async_memcpy_issue_pending(chan) dma_async_issue_pending(chan) -- GitLab From 6497dcffe07b7c3d863f9899280c4f6eae999161 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 1 Mar 2008 07:52:14 -0700 Subject: [PATCH 370/923] ioat: fix 'ack' handling, driver must ensure that 'ack' is zero Initialize 'ack' to zero in case the descriptor has been recycled. Prevents "kernel BUG at crypto/async_tx/async_xor.c:185!" Signed-off-by: Dan Williams Acked-by: Shannon Nelson Cc: stable@kernel.org --- drivers/dma/ioat_dma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index dff38accc5c..4017d9e7acd 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -714,6 +714,7 @@ static struct dma_async_tx_descriptor *ioat1_dma_prep_memcpy( new->len = len; new->dst = dma_dest; new->src = dma_src; + new->async_tx.ack = 0; return &new->async_tx; } else return NULL; @@ -741,6 +742,7 @@ static struct dma_async_tx_descriptor *ioat2_dma_prep_memcpy( new->len = len; new->dst = dma_dest; new->src = dma_src; + new->async_tx.ack = 0; return &new->async_tx; } else return NULL; -- GitLab From e97a294ef6938512b655b1abf17656cf2b26f709 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 4 Mar 2008 20:22:54 +0100 Subject: [PATCH 371/923] scsi: missing add of padded bytes to io completion byte count Original patch from Tejun Heo but should use ->extra_len and not ->data_len, as we would then overshoot the original request size. Signed-off-by: Jens Axboe --- drivers/scsi/scsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index fecba05b4e7..e5c6f6af876 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -757,7 +757,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd) "Notifying upper driver of completion " "(result %x)\n", cmd->result)); - good_bytes = scsi_bufflen(cmd); + good_bytes = scsi_bufflen(cmd) + cmd->request->extra_len; if (cmd->request->cmd_type != REQ_TYPE_BLOCK_PC) { drv = scsi_cmd_to_driver(cmd); if (drv->done) -- GitLab From fcab59a3186640ce085e89ee6dfc03cacfb6c7c9 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 19:33:24 +0000 Subject: [PATCH 372/923] x86: a P4 is a P6 not an i486 P4 has been coming out as CPU_FAMILY=4 instead of 6: fix MPENTIUM4 typo. Signed-off-by: Hugh Dickins Signed-off-by: Linus Torvalds --- arch/x86/Kconfig.cpu | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 6d50064db18..9304bfba7d4 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -388,7 +388,7 @@ config X86_OOSTORE # config X86_P6_NOP def_bool y - depends on (X86_64 || !X86_GENERIC) && (M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || PENTIUM4) + depends on (X86_64 || !X86_GENERIC) && (M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MPENTIUM4) config X86_TSC def_bool y -- GitLab From bd3be240cb4e513c3d5e7d773ab9a8ce646befbd Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Mon, 11 Feb 2008 15:10:19 +0100 Subject: [PATCH 373/923] [IA64] CONFIG_SGI_SN2 - auto select NUMA and ACPI_NUMA Auto select CONFIG_NUMA and CONFIG_ACPI_NUMA when picking SN2, similar to how they are selected automatically for CONFIG_IA64_GENERIC. Signed-off-by: Jes Sorensen Signed-off-by: Tony Luck --- arch/ia64/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index dff9edfc746..17ef9b22022 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -155,6 +155,8 @@ config IA64_HP_ZX1_SWIOTLB config IA64_SGI_SN2 bool "SGI-SN2" + select NUMA + select ACPI_NUMA help Selecting this option will optimize the kernel for use on sn2 based systems, but the resulting kernel binary will not run on other -- GitLab From d7a6c68a2f991b18e61ebfe0251ab42c054d9a1d Mon Sep 17 00:00:00 2001 From: Shi Weihua Date: Tue, 19 Feb 2008 10:25:09 +0800 Subject: [PATCH 374/923] [IA64] signal(ia64): add a signal stack overflow check The similar check has been added to x86_32(i386) in commit id 83bd01024b1fdfc41d9b758e5669e80fca72df66. So we add this check to ia64 and improve it a liitle bit in that we need to check for stack overflow only when the signal is on stack. Signed-off-by: Shi Weihua Signed-off-by: Tony Luck --- arch/ia64/kernel/signal.c | 36 +++++++++++++++++++++++++++--------- 1 file changed, 27 insertions(+), 9 deletions(-) diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c index 309da3567bc..5740296c35a 100644 --- a/arch/ia64/kernel/signal.c +++ b/arch/ia64/kernel/signal.c @@ -342,15 +342,33 @@ setup_frame (int sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *set, new_sp = scr->pt.r12; tramp_addr = (unsigned long) __kernel_sigtramp; - if ((ka->sa.sa_flags & SA_ONSTACK) && sas_ss_flags(new_sp) == 0) { - new_sp = current->sas_ss_sp + current->sas_ss_size; - /* - * We need to check for the register stack being on the signal stack - * separately, because it's switched separately (memory stack is switched - * in the kernel, register stack is switched in the signal trampoline). - */ - if (!rbs_on_sig_stack(scr->pt.ar_bspstore)) - new_rbs = (current->sas_ss_sp + sizeof(long) - 1) & ~(sizeof(long) - 1); + if (ka->sa.sa_flags & SA_ONSTACK) { + int onstack = sas_ss_flags(new_sp); + + if (onstack == 0) { + new_sp = current->sas_ss_sp + current->sas_ss_size; + /* + * We need to check for the register stack being on the + * signal stack separately, because it's switched + * separately (memory stack is switched in the kernel, + * register stack is switched in the signal trampoline). + */ + if (!rbs_on_sig_stack(scr->pt.ar_bspstore)) + new_rbs = ALIGN(current->sas_ss_sp, + sizeof(long)); + } else if (onstack == SS_ONSTACK) { + unsigned long check_sp; + + /* + * If we are on the alternate signal stack and would + * overflow it, don't. Return an always-bogus address + * instead so we will die with SIGSEGV. + */ + check_sp = (new_sp - sizeof(*frame)) & -STACK_ALIGN; + if (!likely(on_sig_stack(check_sp))) + return force_sigsegv_info(sig, (void __user *) + check_sp); + } } frame = (void __user *) ((new_sp - sizeof(*frame)) & -STACK_ALIGN); -- GitLab From 86dffa4cd1a1d61fed68ab64c674d4094f2bdfe4 Mon Sep 17 00:00:00 2001 From: Shi Weihua Date: Tue, 19 Feb 2008 10:26:19 +0800 Subject: [PATCH 375/923] [IA64] signal(ia64_ia32): add a signal stack overflow check The similar check has been added to x86_32(i386) in commit id 83bd01024b1fdfc41d9b758e5669e80fca72df66. So we add this check to ia64_ia32 and improve it a liitle bit in that we need to check for stack overflow only when the signal is on stack. Signed-off-by: Shi Weihua Signed-off-by: Tony Luck --- arch/ia64/ia32/ia32_signal.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/ia64/ia32/ia32_signal.c b/arch/ia64/ia32/ia32_signal.c index 85e82f32e48..256a7faeda0 100644 --- a/arch/ia64/ia32/ia32_signal.c +++ b/arch/ia64/ia32/ia32_signal.c @@ -766,8 +766,19 @@ get_sigframe (struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size) /* This is the X/Open sanctioned signal stack switching. */ if (ka->sa.sa_flags & SA_ONSTACK) { - if (!on_sig_stack(esp)) + int onstack = sas_ss_flags(esp); + + if (onstack == 0) esp = current->sas_ss_sp + current->sas_ss_size; + else if (onstack == SS_ONSTACK) { + /* + * If we are on the alternate signal stack and would + * overflow it, don't. Return an always-bogus address + * instead so we will die with SIGSEGV. + */ + if (!likely(on_sig_stack(esp - frame_size))) + return (void __user *) -1L; + } } /* Legacy stack switching not supported */ -- GitLab From a6cd6322d594014240465210ccb290971469c6e8 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Mon, 25 Feb 2008 14:32:22 +0900 Subject: [PATCH 376/923] [IA64] Fix irq migration in multiple vector domain Fix the problem that the following error message is sometimes displayed at irq migration when vector domain is enabled. "Unexpected interrupt vector %d on CPU %d is not mapped to any IRQ!" The cause of this problem is an interrupt is sent to the previous target CPU after cleaning up vector to irq mapping table. To clean up vector to irq map on the previous target CPU safty, change the irq migration in multiple vector domain as follows. The original idea is from x86 interrupt management code. - Delay vector to irq table cleanup until the interrupts are sent to new target CPUs. By this, it is ensured that target CPU is completely changed on the interrupt controller side. - Even after the interrupts are sent to new target CPUs, there can be pended interrupts remaining on the previous target CPU. So we need to delay clearning up vector to irq table until the pended interrupt is handled. For this, send IPI to the previous target CPU with lower priority vector and clean up vector to irq table in its handler. This patch affects only to irq migration code with multiple vector domain is enabled. Signed-off-by: Kenji Kaneshige Signed-off-by: Tony Luck --- arch/ia64/kernel/iosapic.c | 4 +- arch/ia64/kernel/irq_ia64.c | 134 ++++++++++++++++++++++++++++-------- arch/ia64/kernel/msi_ia64.c | 3 +- include/asm-ia64/hw_irq.h | 12 +++- 4 files changed, 120 insertions(+), 33 deletions(-) diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index 398e2fd1cd2..7b3292282de 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -345,7 +345,7 @@ iosapic_set_affinity (unsigned int irq, cpumask_t mask) if (cpus_empty(mask)) return; - if (reassign_irq_vector(irq, first_cpu(mask))) + if (irq_prepare_move(irq, first_cpu(mask))) return; dest = cpu_physical_id(first_cpu(mask)); @@ -397,6 +397,7 @@ iosapic_end_level_irq (unsigned int irq) struct iosapic_rte_info *rte; int do_unmask_irq = 0; + irq_complete_move(irq); if (unlikely(irq_desc[irq].status & IRQ_MOVE_PENDING)) { do_unmask_irq = 1; mask_irq(irq); @@ -450,6 +451,7 @@ iosapic_ack_edge_irq (unsigned int irq) { irq_desc_t *idesc = irq_desc + irq; + irq_complete_move(irq); move_native_irq(irq); /* * Once we have recorded IRQ_PENDING already, we can mask the diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 0b52f19ed04..2b8cf6e85af 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -260,6 +260,8 @@ void __setup_vector_irq(int cpu) } #if defined(CONFIG_SMP) && (defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG)) +#define IA64_IRQ_MOVE_VECTOR IA64_DEF_FIRST_DEVICE_VECTOR + static enum vector_domain_type { VECTOR_DOMAIN_NONE, VECTOR_DOMAIN_PERCPU @@ -272,6 +274,101 @@ static cpumask_t vector_allocation_domain(int cpu) return CPU_MASK_ALL; } +static int __irq_prepare_move(int irq, int cpu) +{ + struct irq_cfg *cfg = &irq_cfg[irq]; + int vector; + cpumask_t domain; + + if (cfg->move_in_progress || cfg->move_cleanup_count) + return -EBUSY; + if (cfg->vector == IRQ_VECTOR_UNASSIGNED || !cpu_online(cpu)) + return -EINVAL; + if (cpu_isset(cpu, cfg->domain)) + return 0; + domain = vector_allocation_domain(cpu); + vector = find_unassigned_vector(domain); + if (vector < 0) + return -ENOSPC; + cfg->move_in_progress = 1; + cfg->old_domain = cfg->domain; + cfg->vector = IRQ_VECTOR_UNASSIGNED; + cfg->domain = CPU_MASK_NONE; + BUG_ON(__bind_irq_vector(irq, vector, domain)); + return 0; +} + +int irq_prepare_move(int irq, int cpu) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&vector_lock, flags); + ret = __irq_prepare_move(irq, cpu); + spin_unlock_irqrestore(&vector_lock, flags); + return ret; +} + +void irq_complete_move(unsigned irq) +{ + struct irq_cfg *cfg = &irq_cfg[irq]; + cpumask_t cleanup_mask; + int i; + + if (likely(!cfg->move_in_progress)) + return; + + if (unlikely(cpu_isset(smp_processor_id(), cfg->old_domain))) + return; + + cpus_and(cleanup_mask, cfg->old_domain, cpu_online_map); + cfg->move_cleanup_count = cpus_weight(cleanup_mask); + for_each_cpu_mask(i, cleanup_mask) + platform_send_ipi(i, IA64_IRQ_MOVE_VECTOR, IA64_IPI_DM_INT, 0); + cfg->move_in_progress = 0; +} + +static irqreturn_t smp_irq_move_cleanup_interrupt(int irq, void *dev_id) +{ + int me = smp_processor_id(); + ia64_vector vector; + unsigned long flags; + + for (vector = IA64_FIRST_DEVICE_VECTOR; + vector < IA64_LAST_DEVICE_VECTOR; vector++) { + int irq; + struct irq_desc *desc; + struct irq_cfg *cfg; + irq = __get_cpu_var(vector_irq)[vector]; + if (irq < 0) + continue; + + desc = irq_desc + irq; + cfg = irq_cfg + irq; + spin_lock(&desc->lock); + if (!cfg->move_cleanup_count) + goto unlock; + + if (!cpu_isset(me, cfg->old_domain)) + goto unlock; + + spin_lock_irqsave(&vector_lock, flags); + __get_cpu_var(vector_irq)[vector] = -1; + cpu_clear(me, vector_table[vector]); + spin_unlock_irqrestore(&vector_lock, flags); + cfg->move_cleanup_count--; + unlock: + spin_unlock(&desc->lock); + } + return IRQ_HANDLED; +} + +static struct irqaction irq_move_irqaction = { + .handler = smp_irq_move_cleanup_interrupt, + .flags = IRQF_DISABLED, + .name = "irq_move" +}; + static int __init parse_vector_domain(char *arg) { if (!arg) @@ -303,36 +400,6 @@ void destroy_and_reserve_irq(unsigned int irq) spin_unlock_irqrestore(&vector_lock, flags); } -static int __reassign_irq_vector(int irq, int cpu) -{ - struct irq_cfg *cfg = &irq_cfg[irq]; - int vector; - cpumask_t domain; - - if (cfg->vector == IRQ_VECTOR_UNASSIGNED || !cpu_online(cpu)) - return -EINVAL; - if (cpu_isset(cpu, cfg->domain)) - return 0; - domain = vector_allocation_domain(cpu); - vector = find_unassigned_vector(domain); - if (vector < 0) - return -ENOSPC; - __clear_irq_vector(irq); - BUG_ON(__bind_irq_vector(irq, vector, domain)); - return 0; -} - -int reassign_irq_vector(int irq, int cpu) -{ - unsigned long flags; - int ret; - - spin_lock_irqsave(&vector_lock, flags); - ret = __reassign_irq_vector(irq, cpu); - spin_unlock_irqrestore(&vector_lock, flags); - return ret; -} - /* * Dynamic irq allocate and deallocation for MSI */ @@ -578,6 +645,13 @@ init_IRQ (void) register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction); register_percpu_irq(IA64_IPI_RESCHEDULE, &resched_irqaction); register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &tlb_irqaction); +#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG) + if (vector_domain_type != VECTOR_DOMAIN_NONE) { + BUG_ON(IA64_FIRST_DEVICE_VECTOR != IA64_IRQ_MOVE_VECTOR); + IA64_FIRST_DEVICE_VECTOR++; + register_percpu_irq(IA64_IRQ_MOVE_VECTOR, &irq_move_irqaction); + } +#endif #endif #ifdef CONFIG_PERFMON pfm_init_percpu(); diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c index e86d0295979..60c6ef67ebb 100644 --- a/arch/ia64/kernel/msi_ia64.c +++ b/arch/ia64/kernel/msi_ia64.c @@ -57,7 +57,7 @@ static void ia64_set_msi_irq_affinity(unsigned int irq, cpumask_t cpu_mask) if (!cpu_online(cpu)) return; - if (reassign_irq_vector(irq, cpu)) + if (irq_prepare_move(irq, cpu)) return; read_msi_msg(irq, &msg); @@ -119,6 +119,7 @@ void ia64_teardown_msi_irq(unsigned int irq) static void ia64_ack_msi_irq(unsigned int irq) { + irq_complete_move(irq); move_native_irq(irq); ia64_eoi(); } diff --git a/include/asm-ia64/hw_irq.h b/include/asm-ia64/hw_irq.h index 7e6e3779670..76366dc9c1a 100644 --- a/include/asm-ia64/hw_irq.h +++ b/include/asm-ia64/hw_irq.h @@ -93,6 +93,9 @@ extern __u8 isa_irq_to_vector_map[16]; struct irq_cfg { ia64_vector vector; cpumask_t domain; + cpumask_t old_domain; + unsigned move_cleanup_count; + u8 move_in_progress : 1; }; extern spinlock_t vector_lock; extern struct irq_cfg irq_cfg[NR_IRQS]; @@ -106,12 +109,19 @@ extern int assign_irq_vector (int irq); /* allocate a free vector */ extern void free_irq_vector (int vector); extern int reserve_irq_vector (int vector); extern void __setup_vector_irq(int cpu); -extern int reassign_irq_vector(int irq, int cpu); extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect); extern void register_percpu_irq (ia64_vector vec, struct irqaction *action); extern int check_irq_used (int irq); extern void destroy_and_reserve_irq (unsigned int irq); +#if defined(CONFIG_SMP) && (defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG)) +extern int irq_prepare_move(int irq, int cpu); +extern void irq_complete_move(unsigned int irq); +#else +static inline int irq_prepare_move(int irq, int cpu) { return 0; } +static inline void irq_complete_move(unsigned int irq) {} +#endif + static inline void ia64_resend_irq(unsigned int vector) { platform_send_ipi(smp_processor_id(), vector, IA64_IPI_DM_INT, 0); -- GitLab From 022f9268854e88adcc343de77a440d6e82f74c2e Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 26 Feb 2008 21:54:46 +0200 Subject: [PATCH 377/923] [IA64] move defconfig to arch/ia64/configs/ This patch moves the default ia64 defconfig to arch/ia64/configs/generic_defconfig where it belongs and selects it as the default defconfig through KBUILD_DEFCONFIG. Signed-off-by: Adrian Bunk Signed-off-by: Tony Luck --- arch/ia64/Makefile | 2 ++ arch/ia64/{defconfig => configs/generic_defconfig} | 0 2 files changed, 2 insertions(+) rename arch/ia64/{defconfig => configs/generic_defconfig} (100%) diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index b916ccfdef8..f1645c4f703 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -11,6 +11,8 @@ # Copyright (C) 1998-2004 by David Mosberger-Tang # +KBUILD_DEFCONFIG := generic_defconfig + NM := $(CROSS_COMPILE)nm -B READELF := $(CROSS_COMPILE)readelf diff --git a/arch/ia64/defconfig b/arch/ia64/configs/generic_defconfig similarity index 100% rename from arch/ia64/defconfig rename to arch/ia64/configs/generic_defconfig -- GitLab From 6ed0dc5ba811ce682f48988bf114669265e1120d Mon Sep 17 00:00:00 2001 From: Alex Chiang Date: Wed, 27 Feb 2008 18:41:38 -0700 Subject: [PATCH 378/923] [IA64] workaround tiger ia64_sal_get_physical_id_info hang This fixes regression introduced in 113134fcbca83619be4c68d0ca66db6093777b5d Intel Tiger platforms hang when calling SAL_GET_PHYSICAL_ID_INFO instead of properly returning -1 for unimplemented, so add a version check. SGI Altix platforms have an incorrect SAL version hard-coded into their prom -- they encode 2.9, but actually implement 3.2 -- so fix it up and allow ia64_sal_get_physical_id_info to keep working. Signed-off-by: Alex Chiang Acked-by: Russ Anderson Signed-off-by: Tony Luck --- arch/ia64/kernel/sal.c | 7 +++++++ include/asm-ia64/sal.h | 4 ++++ 2 files changed, 11 insertions(+) diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c index f44fe841216..a3022dc48ef 100644 --- a/arch/ia64/kernel/sal.c +++ b/arch/ia64/kernel/sal.c @@ -109,6 +109,13 @@ check_versions (struct ia64_sal_systab *systab) sal_revision = SAL_VERSION_CODE(2, 8); sal_version = SAL_VERSION_CODE(0, 0); } + + if (ia64_platform_is("sn2") && (sal_revision == SAL_VERSION_CODE(2, 9))) + /* + * SGI Altix has hard-coded version 2.9 in their prom + * but they actually implement 3.2, so let's fix it here. + */ + sal_revision = SAL_VERSION_CODE(3, 2); } static void __init diff --git a/include/asm-ia64/sal.h b/include/asm-ia64/sal.h index 2251118894a..f4904db3b05 100644 --- a/include/asm-ia64/sal.h +++ b/include/asm-ia64/sal.h @@ -807,6 +807,10 @@ static inline s64 ia64_sal_physical_id_info(u16 *splid) { struct ia64_sal_retval isrv; + + if (sal_revision < SAL_VERSION_CODE(3,2)) + return -1; + SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0); if (splid) *splid = isrv.v0; -- GitLab From 956d6cad87abdfaef35fa4fc2f2e4ac5bb4ee7a5 Mon Sep 17 00:00:00 2001 From: Doug Chapman Date: Fri, 29 Feb 2008 15:28:43 -0500 Subject: [PATCH 379/923] [IA64] move gcc_intrin.h from header-y to unifdef-y When I submitted 0df29025fd0379d5950d206314d0b10a2c8a9607 to ad an #ifdef __KERNEL__ to include/asm-ia64/gcc_intrin.h a few weeks ago I neglected to move gcc_intrin.h from header-y to unifdef-y. Thanks to David Woodhouse for pointing this out. Signed-off-by: Doug Chapman Signed-off-by: Jarod Wilson Signed-off-by: Tony Luck --- include/asm-ia64/Kbuild | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-ia64/Kbuild b/include/asm-ia64/Kbuild index 4a1e48b9f40..eb24a3f47ca 100644 --- a/include/asm-ia64/Kbuild +++ b/include/asm-ia64/Kbuild @@ -3,7 +3,6 @@ include include/asm-generic/Kbuild.asm header-y += break.h header-y += fpu.h header-y += fpswa.h -header-y += gcc_intrin.h header-y += ia64regs.h header-y += intel_intrin.h header-y += intrinsics.h @@ -12,5 +11,6 @@ header-y += ptrace_offsets.h header-y += rse.h header-y += ucontext.h +unifdef-y += gcc_intrin.h unifdef-y += perfmon.h unifdef-y += ustack.h -- GitLab From 9dad6f5785a9f113dbbd58951d2f5ef9abd06dcc Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 3 Mar 2008 20:07:22 +0200 Subject: [PATCH 380/923] [IA64] fix ia64 kprobes compilation This patch fixes the following compile error with a recent gcc: CC kernel/kprobes.o /home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/kprobes.c:1066: error: __ksymtab_jprobe_return causes a section type conflict Signed-off-by: Adrian Bunk Signed-off-by: Tony Luck --- arch/ia64/kernel/kprobes.c | 5 +++++ include/asm-ia64/kprobes.h | 4 ---- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index b618487cdc8..615c3d2b634 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -1001,6 +1001,11 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) return 1; } +/* ia64 does not need this */ +void __kprobes jprobe_return(void) +{ +} + int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) { struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index a93ce9ef07f..49684b65c18 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -122,10 +122,6 @@ extern int kprobes_fault_handler(struct pt_regs *regs, int trapnr); extern int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data); -/* ia64 does not need this */ -static inline void jprobe_return(void) -{ -} extern void invalidate_stacked_regs(void); extern void flush_register_stack(void); extern void arch_remove_kprobe(struct kprobe *p); -- GitLab From 024440d2ec9712c077cd315de7ae6bc9f6f14f1b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 3 Mar 2008 14:47:13 -0800 Subject: [PATCH 381/923] driver core: fix up Kconfig text for CONFIG_SYSFS_DEPRECATED As things get moved into this config option, the hard date of 2006 does not work anymore, so update the text to be more descriptive. Cc: Kay Sievers Cc: Jiri Slaby Signed-off-by: Greg Kroah-Hartman --- init/Kconfig | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index f698a5af500..e6606e6e99e 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -382,10 +382,11 @@ config SYSFS_DEPRECATED If enabled, this option will also move any device structures that belong to a class, back into the /sys/class hierarchy, in - order to support older versions of udev. + order to support older versions of udev and some userspace + programs. - If you are using a distro that was released in 2006 or later, - it should be safe to say N here. + If you are using a distro with the most recent userspace + packages, it should be safe to say N here. config CGROUP_MEM_CONT bool "Memory controller for cgroups" -- GitLab From d47846c5866b7d98a1173c86a39d810a06647329 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 4 Mar 2008 14:54:47 +0100 Subject: [PATCH 382/923] sysfs: CONFIG_SYSFS_DEPRECATED fix CONFIG_SYSFS_DEPRECATED=y changed its meaning recently and causes regressions in working setups that had SYSFS_DEPRECATED disabled. so rename it to SYSFS_DEPRECATED_V2 so that testers pick up the new default via 'make oldconfig', even if their old .config's disabled CONFIG_SYSFS_DEPRECATED ... Signed-off-by: Ingo Molnar Cc: Kay Sievers Cc: Linus Torvalds Cc: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- init/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/init/Kconfig b/init/Kconfig index e6606e6e99e..98ebf372541 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -367,9 +367,13 @@ config RESOURCE_COUNTERS depends on CGROUPS config SYSFS_DEPRECATED + bool + +config SYSFS_DEPRECATED_V2 bool "Create deprecated sysfs files" depends on SYSFS default y + select SYSFS_DEPRECATED help This option creates deprecated symlinks such as the "device"-link, the :-link, and the -- GitLab From a4573c488dd531c6e2d308ce8a7413c4a2646207 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 26 Feb 2008 09:36:38 -0800 Subject: [PATCH 383/923] kobject: properly initialize ksets kset_initialize was calling kobject_init_internal() which didn't initialize the kobject as well as kobject_init() was. So have kobject_init() call kobject_init_internal() and move the logic to initalize the kobject there. Cc: Kay Sievers Cc: Hannes Reinecke Signed-off-by: Greg Kroah-Hartman --- lib/kobject.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/lib/kobject.c b/lib/kobject.c index d784daeb857..0d03252f87a 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -153,6 +153,10 @@ static void kobject_init_internal(struct kobject *kobj) return; kref_init(&kobj->kref); INIT_LIST_HEAD(&kobj->entry); + kobj->state_in_sysfs = 0; + kobj->state_add_uevent_sent = 0; + kobj->state_remove_uevent_sent = 0; + kobj->state_initialized = 1; } @@ -289,13 +293,8 @@ void kobject_init(struct kobject *kobj, struct kobj_type *ktype) dump_stack(); } - kref_init(&kobj->kref); - INIT_LIST_HEAD(&kobj->entry); + kobject_init_internal(kobj); kobj->ktype = ktype; - kobj->state_in_sysfs = 0; - kobj->state_add_uevent_sent = 0; - kobj->state_remove_uevent_sent = 0; - kobj->state_initialized = 1; return; error: -- GitLab From 7a8d37a37380e2b1500592d40b7ec384dbebe7a0 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 25 Feb 2008 00:35:04 +0100 Subject: [PATCH 384/923] PM: Do not acquire device semaphores upfront during suspend Remove the code that acquires all device semaphores from the suspend code path as it causes multiple problems to appear (most notably, http://bugzilla.kernel.org/show_bug.cgi?id=10030) and revert the change introduced by commit 4145ed6dc597a9bea5f6ae8c574653b2de10620f depending on the code being removed. Remove pm_sleep_lock()/pm_sleep_unlock() from device_add() to avoid the issue reported at http://bugzilla.kernel.org/show_bug.cgi?id=9874. It should fix the regreesions reported at: http://bugzilla.kernel.org/show_bug.cgi?id=9874 http://bugzilla.kernel.org/show_bug.cgi?id=10030 Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 8 --- drivers/base/power/main.c | 106 ++++++-------------------------------- drivers/usb/core/usb.c | 2 +- 3 files changed, 17 insertions(+), 99 deletions(-) diff --git a/drivers/base/core.c b/drivers/base/core.c index 9c0070b5bd3..1e2e0fa8a45 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -770,13 +770,6 @@ int device_add(struct device *dev) struct class_interface *class_intf; int error; - error = pm_sleep_lock(); - if (error) { - dev_warn(dev, "Suspicious %s during suspend\n", __FUNCTION__); - dump_stack(); - return error; - } - dev = get_device(dev); if (!dev || !strlen(dev->bus_id)) { error = -EINVAL; @@ -843,7 +836,6 @@ int device_add(struct device *dev) } Done: put_device(dev); - pm_sleep_unlock(); return error; BusError: device_pm_remove(dev); diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index ee9d1c8db0d..b0c16f6fc18 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -48,7 +48,6 @@ */ LIST_HEAD(dpm_active); -static LIST_HEAD(dpm_locked); static LIST_HEAD(dpm_off); static LIST_HEAD(dpm_off_irq); static LIST_HEAD(dpm_destroy); @@ -81,28 +80,6 @@ void device_pm_add(struct device *dev) */ void device_pm_remove(struct device *dev) { - /* - * If this function is called during a suspend, it will be blocked, - * because we're holding the device's semaphore at that time, which may - * lead to a deadlock. In that case we want to print a warning. - * However, it may also be called by unregister_dropped_devices() with - * the device's semaphore released, in which case the warning should - * not be printed. - */ - if (down_trylock(&dev->sem)) { - if (down_read_trylock(&pm_sleep_rwsem)) { - /* No suspend in progress, wait on dev->sem */ - down(&dev->sem); - up_read(&pm_sleep_rwsem); - } else { - /* Suspend in progress, we may deadlock */ - dev_warn(dev, "Suspicious %s during suspend\n", - __FUNCTION__); - dump_stack(); - /* The user has been warned ... */ - down(&dev->sem); - } - } pr_debug("PM: Removing info for %s:%s\n", dev->bus ? dev->bus->name : "No Bus", kobject_name(&dev->kobj)); @@ -110,7 +87,6 @@ void device_pm_remove(struct device *dev) dpm_sysfs_remove(dev); list_del_init(&dev->power.entry); mutex_unlock(&dpm_list_mtx); - up(&dev->sem); } /** @@ -230,6 +206,8 @@ static int resume_device(struct device *dev) TRACE_DEVICE(dev); TRACE_RESUME(0); + down(&dev->sem); + if (dev->bus && dev->bus->resume) { dev_dbg(dev,"resuming\n"); error = dev->bus->resume(dev); @@ -245,6 +223,8 @@ static int resume_device(struct device *dev) error = dev->class->resume(dev); } + up(&dev->sem); + TRACE_RESUME(error); return error; } @@ -266,7 +246,7 @@ static void dpm_resume(void) struct list_head *entry = dpm_off.next; struct device *dev = to_device(entry); - list_move_tail(entry, &dpm_locked); + list_move_tail(entry, &dpm_active); mutex_unlock(&dpm_list_mtx); resume_device(dev); mutex_lock(&dpm_list_mtx); @@ -274,25 +254,6 @@ static void dpm_resume(void) mutex_unlock(&dpm_list_mtx); } -/** - * unlock_all_devices - Release each device's semaphore - * - * Go through the dpm_off list. Put each device on the dpm_active - * list and unlock it. - */ -static void unlock_all_devices(void) -{ - mutex_lock(&dpm_list_mtx); - while (!list_empty(&dpm_locked)) { - struct list_head *entry = dpm_locked.prev; - struct device *dev = to_device(entry); - - list_move(entry, &dpm_active); - up(&dev->sem); - } - mutex_unlock(&dpm_list_mtx); -} - /** * unregister_dropped_devices - Unregister devices scheduled for removal * @@ -305,7 +266,6 @@ static void unregister_dropped_devices(void) struct list_head *entry = dpm_destroy.next; struct device *dev = to_device(entry); - up(&dev->sem); mutex_unlock(&dpm_list_mtx); /* This also removes the device from the list */ device_unregister(dev); @@ -324,7 +284,6 @@ void device_resume(void) { might_sleep(); dpm_resume(); - unlock_all_devices(); unregister_dropped_devices(); up_write(&pm_sleep_rwsem); } @@ -388,18 +347,15 @@ int device_power_down(pm_message_t state) struct list_head *entry = dpm_off.prev; struct device *dev = to_device(entry); - list_del_init(&dev->power.entry); error = suspend_device_late(dev, state); if (error) { printk(KERN_ERR "Could not power down device %s: " "error %d\n", kobject_name(&dev->kobj), error); - if (list_empty(&dev->power.entry)) - list_add(&dev->power.entry, &dpm_off); break; } - if (list_empty(&dev->power.entry)) - list_add(&dev->power.entry, &dpm_off_irq); + if (!list_empty(&dev->power.entry)) + list_move(&dev->power.entry, &dpm_off_irq); } if (!error) @@ -419,6 +375,8 @@ static int suspend_device(struct device *dev, pm_message_t state) { int error = 0; + down(&dev->sem); + if (dev->power.power_state.event) { dev_dbg(dev, "PM: suspend %d-->%d\n", dev->power.power_state.event, state.event); @@ -441,6 +399,9 @@ static int suspend_device(struct device *dev, pm_message_t state) error = dev->bus->suspend(dev, state); suspend_report_result(dev->bus->suspend, error); } + + up(&dev->sem); + return error; } @@ -461,11 +422,10 @@ static int dpm_suspend(pm_message_t state) int error = 0; mutex_lock(&dpm_list_mtx); - while (!list_empty(&dpm_locked)) { - struct list_head *entry = dpm_locked.prev; + while (!list_empty(&dpm_active)) { + struct list_head *entry = dpm_active.prev; struct device *dev = to_device(entry); - list_del_init(&dev->power.entry); mutex_unlock(&dpm_list_mtx); error = suspend_device(dev, state); if (error) { @@ -476,50 +436,17 @@ static int dpm_suspend(pm_message_t state) (error == -EAGAIN ? " (please convert to suspend_late)" : "")); - mutex_lock(&dpm_list_mtx); - if (list_empty(&dev->power.entry)) - list_add(&dev->power.entry, &dpm_locked); break; } mutex_lock(&dpm_list_mtx); - if (list_empty(&dev->power.entry)) - list_add(&dev->power.entry, &dpm_off); + if (!list_empty(&dev->power.entry)) + list_move(&dev->power.entry, &dpm_off); } mutex_unlock(&dpm_list_mtx); return error; } -/** - * lock_all_devices - Acquire every device's semaphore - * - * Go through the dpm_active list. Carefully lock each device's - * semaphore and put it in on the dpm_locked list. - */ -static void lock_all_devices(void) -{ - mutex_lock(&dpm_list_mtx); - while (!list_empty(&dpm_active)) { - struct list_head *entry = dpm_active.next; - struct device *dev = to_device(entry); - - /* Required locking order is dev->sem first, - * then dpm_list_mutex. Hence this awkward code. - */ - get_device(dev); - mutex_unlock(&dpm_list_mtx); - down(&dev->sem); - mutex_lock(&dpm_list_mtx); - - if (list_empty(entry)) - up(&dev->sem); /* Device was removed */ - else - list_move_tail(entry, &dpm_locked); - put_device(dev); - } - mutex_unlock(&dpm_list_mtx); -} - /** * device_suspend - Save state and stop all devices in system. * @state: new power management state @@ -533,7 +460,6 @@ int device_suspend(pm_message_t state) might_sleep(); down_write(&pm_sleep_rwsem); - lock_all_devices(); error = dpm_suspend(state); if (error) device_resume(); diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index f6f19908f5f..1f0db51190c 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -233,7 +233,7 @@ static int ksuspend_usb_init(void) * singlethreaded. Its job doesn't justify running on more * than one CPU. */ - ksuspend_usb_wq = create_singlethread_workqueue("ksuspend_usbd"); + ksuspend_usb_wq = create_freezeable_workqueue("ksuspend_usbd"); if (!ksuspend_usb_wq) return -ENOMEM; return 0; -- GitLab From 1b3cbec1dcb6747b587b40335f5de1d9e035063c Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 29 Feb 2008 11:50:22 -0500 Subject: [PATCH 385/923] PM: fix new mutex-locking bug in the PM core This patch (as1041) fixes a bug introduced by the acquire-all-device-semaphores reversion. The error pathway of dpm_suspend() fails to reacquire a mutex it should be holding. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/base/power/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index b0c16f6fc18..d887d5cb5be 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -428,6 +428,7 @@ static int dpm_suspend(pm_message_t state) mutex_unlock(&dpm_list_mtx); error = suspend_device(dev, state); + mutex_lock(&dpm_list_mtx); if (error) { printk(KERN_ERR "Could not suspend device %s: " "error %d%s\n", @@ -438,7 +439,6 @@ static int dpm_suspend(pm_message_t state) "")); break; } - mutex_lock(&dpm_list_mtx); if (!list_empty(&dev->power.entry)) list_move(&dev->power.entry, &dpm_off); } -- GitLab From 135dee0cd0eb2638fab899b428e51f00e8c046a8 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 3 Mar 2008 23:46:51 +0100 Subject: [PATCH 386/923] driver core: Remove dpm_sysfs_remove() from error path of device_add() Since device_pm_remove(dev) calls dpm_sysfs_remove(dev), it's incorrect to call the latter after the former in the device_add() error path. Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/base/core.c b/drivers/base/core.c index 1e2e0fa8a45..7f59c2f2ebc 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -839,7 +839,6 @@ int device_add(struct device *dev) return error; BusError: device_pm_remove(dev); - dpm_sysfs_remove(dev); PMError: if (dev->bus) blocking_notifier_call_chain(&dev->bus->p->bus_notifier, -- GitLab From c1fe539a7e031302af1d121163e7ce68e679ba8c Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Wed, 27 Feb 2008 15:38:23 +0100 Subject: [PATCH 387/923] Driver core: Fix cleanup when failing device_add(). Driver core: Fix cleanup when failing device_add(). - Don't call cleanup_device_parent() if we didn't call setup_parent(). - dev->kobj.parent may be NULL when cleanup_device_parent() is called, so we need to handle glue_dir == NULL in cleanup_glue_dir(). Signed-off-by: Cornelia Huck Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/base/core.c b/drivers/base/core.c index 7f59c2f2ebc..7de543d1d0b 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -621,7 +621,8 @@ static struct kobject *get_device_parent(struct device *dev, static void cleanup_glue_dir(struct device *dev, struct kobject *glue_dir) { /* see if we live in a "glue" directory */ - if (!dev->class || glue_dir->kset != &dev->class->class_dirs) + if (!glue_dir || !dev->class || + glue_dir->kset != &dev->class->class_dirs) return; kobject_put(glue_dir); @@ -773,7 +774,7 @@ int device_add(struct device *dev) dev = get_device(dev); if (!dev || !strlen(dev->bus_id)) { error = -EINVAL; - goto Error; + goto Done; } pr_debug("device: '%s': %s\n", dev->bus_id, __FUNCTION__); -- GitLab From 3634634edd49c115da931998b9540bcc17665b05 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 13 Feb 2008 17:08:16 -0800 Subject: [PATCH 388/923] debugfs: fix sparse warnings extern does not belong in C files, move declaration to linux/debugfs.h fs/debugfs/file.c:42:30: warning: symbol 'debugfs_file_operations' was not declared. Should it be static? fs/debugfs/file.c:54:31: warning: symbol 'debugfs_link_operations' was not declared. Should it be static? Signed-off-by: Harvey Harrison Signed-off-by: Greg Kroah-Hartman --- fs/debugfs/inode.c | 4 ---- include/linux/debugfs.h | 5 +++++ 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index d26e2826ba5..e9602d85c11 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -29,10 +29,6 @@ #define DEBUGFS_MAGIC 0x64626720 -/* declared over in file.c */ -extern struct file_operations debugfs_file_operations; -extern struct inode_operations debugfs_link_operations; - static struct vfsmount *debugfs_mount; static int debugfs_mount_count; diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index f592d6de3b9..7266124361b 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -27,6 +27,11 @@ struct debugfs_blob_wrapper { }; #if defined(CONFIG_DEBUG_FS) + +/* declared over in file.c */ +extern const struct file_operations debugfs_file_operations; +extern const struct inode_operations debugfs_link_operations; + struct dentry *debugfs_create_file(const char *name, mode_t mode, struct dentry *parent, void *data, const struct file_operations *fops); -- GitLab From 11e1abb453690a907ea26c07043987165a4f277f Mon Sep 17 00:00:00 2001 From: David Ludlow Date: Mon, 25 Feb 2008 17:30:52 -0500 Subject: [PATCH 389/923] usb: Add support for the mos7820/7840-based B&B USB/RS485 converter to mos7840.c Add support for the mos7820/7840-based B&B USOPTL4_2/USOPTL4_4 USB/RS485 converter to mos7840.c Signed-off-by: Dave Ludlow Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7840.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 869ecd374cb..aeeb9cb2099 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -110,11 +110,20 @@ /* vendor id and device id defines */ +/* The native mos7840/7820 component */ #define USB_VENDOR_ID_MOSCHIP 0x9710 #define MOSCHIP_DEVICE_ID_7840 0x7840 #define MOSCHIP_DEVICE_ID_7820 0x7820 +/* The native component can have its vendor/device id's overridden + * in vendor-specific implementations. Such devices can be handled + * by making a change here, in moschip_port_id_table, and in + * moschip_id_table_combined + */ +#define USB_VENDOR_ID_BANDB 0x0856 +#define BANDB_DEVICE_ID_USOPTL4_4 0xAC44 +#define BANDB_DEVICE_ID_USOPTL4_2 0xAC42 -/* Interrupt Rotinue Defines */ +/* Interrupt Routine Defines */ #define SERIAL_IIR_RLS 0x06 #define SERIAL_IIR_MS 0x00 @@ -159,12 +168,16 @@ static struct usb_device_id moschip_port_id_table[] = { {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)}, {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)}, + {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)}, + {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)}, {} /* terminating entry */ }; static __devinitdata struct usb_device_id moschip_id_table_combined[] = { {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)}, {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)}, + {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)}, + {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)}, {} /* terminating entry */ }; -- GitLab From c2c8d1fdadda4abc90efdb7176f44cb903634511 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 25 Feb 2008 11:43:32 -0500 Subject: [PATCH 390/923] USB: update Kconfig entry for USB_SUSPEND This patch (as1039) updates the Kconfig entry for USB_SUSPEND. The out-of-date reference to "power/state" is fixed, autosuspend is mentioned, and the dependency on EXPERIMENTAL is removed. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/Kconfig | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index 5c33cdb9cac..a2b0aa48b8e 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -87,12 +87,13 @@ config USB_DYNAMIC_MINORS If you are unsure about this, say N here. config USB_SUSPEND - bool "USB selective suspend/resume and wakeup (EXPERIMENTAL)" - depends on USB && PM && EXPERIMENTAL + bool "USB selective suspend/resume and wakeup" + depends on USB && PM help If you say Y here, you can use driver calls or the sysfs - "power/state" file to suspend or resume individual USB - peripherals. + "power/level" file to suspend or resume individual USB + peripherals and to enable or disable autosuspend (see + Documentation/usb/power-management.txt for more details). Also, USB "remote wakeup" signaling is supported, whereby some USB devices (like keyboards and network adapters) can wake up -- GitLab From d6d914f52b15d5a8e81ad481e02d9ab30d412a29 Mon Sep 17 00:00:00 2001 From: Lei Ming Date: Mon, 25 Feb 2008 18:07:28 +0800 Subject: [PATCH 391/923] USB: fix comment of struct usb_interface update the comment for the removed "driver" field and being out-of-order of @cur_altsetting and @num_altsetting. Signed-off-by: Lei Ming Signed-off-by: Greg Kroah-Hartman --- include/linux/usb.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/include/linux/usb.h b/include/linux/usb.h index 5bd3ae8aaaf..583e0481dfa 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -94,10 +94,9 @@ enum usb_interface_condition { * @altsetting: array of interface structures, one for each alternate * setting that may be selected. Each one includes a set of * endpoint configurations. They will be in no particular order. - * @num_altsetting: number of altsettings defined. * @cur_altsetting: the current altsetting. + * @num_altsetting: number of altsettings defined. * @intf_assoc: interface association descriptor - * @driver: the USB driver that is bound to this interface. * @minor: the minor number assigned to this interface, if this * interface is bound to a driver that uses the USB major number. * If this interface does not use the USB major, this field should -- GitLab From 14f3546f32d69adaa303b72e5a999e85abe83f9a Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 27 Feb 2008 15:43:47 -0500 Subject: [PATCH 392/923] USB: spruce up the device blacklist This patch (as1040) fixes up the blacklist of USB device quirks. A couple of lines are broken to comply with the 80-column rule, and entries are sorted into the proper numerical order. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index f90ab5e94c5..d9d1eb19f2a 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -28,35 +28,38 @@ * devices is broken... */ static const struct usb_device_id usb_quirk_list[] = { - /* Action Semiconductor flash disk */ - { USB_DEVICE(0x10d6, 0x2200), .driver_info = USB_QUIRK_STRING_FETCH_255}, - /* CBM - Flash disk */ { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME }, + /* HP 5300/5370C scanner */ - { USB_DEVICE(0x03f0, 0x0701), .driver_info = USB_QUIRK_STRING_FETCH_255 }, + { USB_DEVICE(0x03f0, 0x0701), .driver_info = + USB_QUIRK_STRING_FETCH_255 }, /* Creative SB Audigy 2 NX */ { USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Philips PSC805 audio device */ + { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Roland SC-8820 */ { USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME }, /* Edirol SD-20 */ { USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME }, - /* INTEL VALUE SSD */ - { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME }, - /* M-Systems Flash Disk Pioneers */ { USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME }, - /* Philips PSC805 audio device */ - { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Action Semiconductor flash disk */ + { USB_DEVICE(0x10d6, 0x2200), .driver_info = + USB_QUIRK_STRING_FETCH_255 }, /* SKYMEDI USB_DRIVE */ { USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME }, + /* INTEL VALUE SSD */ + { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME }, + { } /* terminating entry must be last */ }; -- GitLab From b5f7a0ec11694e60c99d682549dfaf8a03d7ad97 Mon Sep 17 00:00:00 2001 From: Misha Zhilin Date: Wed, 27 Feb 2008 18:05:24 -0800 Subject: [PATCH 393/923] USB: ehci: handle large bulk URBs correctly (again) USB: ehci: Fixes completion for multi-qtd URB the short read case When use of urb->status in the EHCI driver was reworked last August (commit 14c04c0f88f228fee1f412be91d6edcb935c78aa), a bug was inserted in the handling of early completion for bulk transactions that need more than one qTD (e.g. more than 20KB in one URB). This patch resolves that problem by ensuring that the early completion status is preserved until the URB is handed back to its submitter, instead of resetting it after each qTD. Signed-off-by: Misha Zhilin Signed-off-by: David Brownell Acked-by: Alan Stern Cc: stable@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-q.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 776a97f3391..2e49de820b1 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -319,10 +319,10 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) if (likely (last->urb != urb)) { ehci_urb_done(ehci, last->urb, last_status); count++; + last_status = -EINPROGRESS; } ehci_qtd_free (ehci, last); last = NULL; - last_status = -EINPROGRESS; } /* ignore urbs submitted during completions we reported */ -- GitLab From 0ed930bffab2ec98ee8f43f579a30755c13dd5ea Mon Sep 17 00:00:00 2001 From: Anti Sullin Date: Mon, 3 Mar 2008 15:39:54 +0200 Subject: [PATCH 394/923] USB: isp116x: fix enumeration on boot This patch removes the buffering of the status register. USB core behavior has changed a bit and this buffering was not refreshed at the right time. The core got buffered old value of HCRHPORT and it did not detect any devices on boot. Signed-off-by: Anti Sullin Acked by: Olav Kongas Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/isp116x-hcd.c | 15 ++++++--------- drivers/usb/host/isp116x.h | 1 - 2 files changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 0130fd8571e..d7071c85575 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -911,8 +911,7 @@ static int isp116x_hub_status_data(struct usb_hcd *hcd, char *buf) buf[0] = 0; for (i = 0; i < ports; i++) { - u32 status = isp116x->rhport[i] = - isp116x_read_reg32(isp116x, i ? HCRHPORT2 : HCRHPORT1); + u32 status = isp116x_read_reg32(isp116x, i ? HCRHPORT2 : HCRHPORT1); if (status & (RH_PS_CSC | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | RH_PS_PRSC)) { @@ -1031,7 +1030,9 @@ static int isp116x_hub_control(struct usb_hcd *hcd, DBG("GetPortStatus\n"); if (!wIndex || wIndex > ports) goto error; - tmp = isp116x->rhport[--wIndex]; + spin_lock_irqsave(&isp116x->lock, flags); + tmp = isp116x_read_reg32(isp116x, (--wIndex) ? HCRHPORT2 : HCRHPORT1); + spin_unlock_irqrestore(&isp116x->lock, flags); *(__le32 *) buf = cpu_to_le32(tmp); DBG("GetPortStatus: port[%d] %08x\n", wIndex + 1, tmp); break; @@ -1080,8 +1081,6 @@ static int isp116x_hub_control(struct usb_hcd *hcd, spin_lock_irqsave(&isp116x->lock, flags); isp116x_write_reg32(isp116x, wIndex ? HCRHPORT2 : HCRHPORT1, tmp); - isp116x->rhport[wIndex] = - isp116x_read_reg32(isp116x, wIndex ? HCRHPORT2 : HCRHPORT1); spin_unlock_irqrestore(&isp116x->lock, flags); break; case SetPortFeature: @@ -1095,24 +1094,22 @@ static int isp116x_hub_control(struct usb_hcd *hcd, spin_lock_irqsave(&isp116x->lock, flags); isp116x_write_reg32(isp116x, wIndex ? HCRHPORT2 : HCRHPORT1, RH_PS_PSS); + spin_unlock_irqrestore(&isp116x->lock, flags); break; case USB_PORT_FEAT_POWER: DBG("USB_PORT_FEAT_POWER\n"); spin_lock_irqsave(&isp116x->lock, flags); isp116x_write_reg32(isp116x, wIndex ? HCRHPORT2 : HCRHPORT1, RH_PS_PPS); + spin_unlock_irqrestore(&isp116x->lock, flags); break; case USB_PORT_FEAT_RESET: DBG("USB_PORT_FEAT_RESET\n"); root_port_reset(isp116x, wIndex); - spin_lock_irqsave(&isp116x->lock, flags); break; default: goto error; } - isp116x->rhport[wIndex] = - isp116x_read_reg32(isp116x, wIndex ? HCRHPORT2 : HCRHPORT1); - spin_unlock_irqrestore(&isp116x->lock, flags); break; default: diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h index b91e2edd9c5..595b90a9984 100644 --- a/drivers/usb/host/isp116x.h +++ b/drivers/usb/host/isp116x.h @@ -270,7 +270,6 @@ struct isp116x { u32 rhdesca; u32 rhdescb; u32 rhstatus; - u32 rhport[2]; /* async schedule: control, bulk */ struct list_head async; -- GitLab From 6d512a80c26d87f8599057c86dc920fbfe0aa3aa Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 22 Feb 2008 17:00:06 -0500 Subject: [PATCH 395/923] usb-storage: update earlier scatter-gather bug fix This patch (as1037) makes a small update to the earlier as1035 patch. The minimum-length computation shouldn't be done in usb_stor_access_xfer_buf(), since that routine can be called multiple times for a single transfer. It should be done in usb_stor_set_xfer_buf() instead, which gets called only once. The way it is now isn't really _wrong_, but it isn't really _right_ either. Moving the statement will be an improvement. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/protocol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c index 958f5b17847..b9b8ede61fb 100644 --- a/drivers/usb/storage/protocol.c +++ b/drivers/usb/storage/protocol.c @@ -170,7 +170,6 @@ unsigned int usb_stor_access_xfer_buf(unsigned char *buffer, if (!sg) sg = scsi_sglist(srb); - buflen = min(buflen, scsi_bufflen(srb)); /* This loop handles a single s-g list entry, which may * include multiple pages. Find the initial page structure @@ -232,6 +231,7 @@ void usb_stor_set_xfer_buf(unsigned char *buffer, unsigned int offset = 0; struct scatterlist *sg = NULL; + buflen = min(buflen, scsi_bufflen(srb)); buflen = usb_stor_access_xfer_buf(buffer, buflen, srb, &sg, &offset, TO_XFER_BUF); if (buflen < scsi_bufflen(srb)) -- GitLab From 85fb62a001278270f9fffbdc3508ef23d5f3693d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Daniel=20Koz=C3=A1k?= Date: Tue, 4 Mar 2008 18:54:53 +0100 Subject: [PATCH 396/923] USB: Add support for AXESSTEL MV110H CDMA modem MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add entry for Axesstel MV110H CDMA modem (ID: 1726:1000) to option driver Signed-off-by: Daniel Kozák Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index af2674c5741..828a4377ec6 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -120,6 +120,9 @@ static int option_send_setup(struct usb_serial_port *port); #define ANYDATA_PRODUCT_ADU_E100A 0x6501 #define ANYDATA_PRODUCT_ADU_500A 0x6502 +#define AXESSTEL_VENDOR_ID 0x1726 +#define AXESSTEL_PRODUCT_MV110H 0x1000 + #define BANDRICH_VENDOR_ID 0x1A8D #define BANDRICH_PRODUCT_C100_1 0x1002 #define BANDRICH_PRODUCT_C100_2 0x1003 @@ -192,6 +195,7 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */ { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) }, + { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) }, { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) }, { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) }, { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) }, -- GitLab From 546d7eec389a3df3173b3131d92829c14e614601 Mon Sep 17 00:00:00 2001 From: Kevin Vance Date: Sat, 1 Mar 2008 13:49:59 -0500 Subject: [PATCH 397/923] USB: ftdi_sio: Workaround for broken Matrix Orbital serial port Workaround for the FT232RL-based, Matrix Orbital VK204-25-USB serial port added to the ftdi_sio driver. The device has an invalid endpoint descriptor, which must be modified before it can be used. Signed-off-by: Kevin Vance Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 24 ++++++++++++++++++++++++ drivers/usb/serial/ftdi_sio.h | 7 +++++++ 2 files changed, 31 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 76db2fef465..17b2cc071ed 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -92,6 +92,7 @@ struct ftdi_sio_quirk { }; static int ftdi_jtag_probe (struct usb_serial *serial); +static int ftdi_mtxorb_hack_setup (struct usb_serial *serial); static void ftdi_USB_UIRT_setup (struct ftdi_private *priv); static void ftdi_HE_TIRA1_setup (struct ftdi_private *priv); @@ -99,6 +100,10 @@ static struct ftdi_sio_quirk ftdi_jtag_quirk = { .probe = ftdi_jtag_probe, }; +static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = { + .probe = ftdi_mtxorb_hack_setup, +}; + static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = { .port_probe = ftdi_USB_UIRT_setup, }; @@ -161,6 +166,8 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) }, { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) }, { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) }, + { USB_DEVICE(MTXORB_VK_VID, MTXORB_VK_PID), + .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk }, { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) }, { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) }, { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) }, @@ -1088,6 +1095,23 @@ static int ftdi_jtag_probe(struct usb_serial *serial) return 0; } +/* + * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. + * We have to correct it if we want to read from it. + */ +static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) +{ + struct usb_host_endpoint *ep = serial->dev->ep_in[1]; + struct usb_endpoint_descriptor *ep_desc = &ep->desc; + + if (ep->enabled && ep_desc->wMaxPacketSize == 0) { + ep_desc->wMaxPacketSize = 0x40; + info("Fixing invalid wMaxPacketSize on read pipe"); + } + + return 0; +} + /* ftdi_shutdown is called from usbserial:usb_serial_disconnect * it is called when the usb device is disconnected * diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index 6eee2ab914e..e1eb742abcd 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -102,6 +102,13 @@ * (http://www.joernonline.de/dw/doku.php?id=start&idx=projects:oocdlink) */ #define FTDI_OOCDLINK_PID 0xbaf8 /* Amontec JTAGkey */ +/* + * The following are the values for the Matrix Orbital VK204-25-USB + * display, which use the FT232RL. + */ +#define MTXORB_VK_VID 0x1b3d +#define MTXORB_VK_PID 0x0158 + /* Interbiometrics USB I/O Board */ /* Developed for Interbiometrics by Rudolf Gugler */ #define INTERBIOMETRICS_VID 0x1209 -- GitLab From 64cc2dd937298324c77c7d584495052547c64a6a Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Fri, 22 Feb 2008 17:17:19 -0800 Subject: [PATCH 398/923] USB: pxa2xx_udc: fix misuse of clock enable/disable calls Fix pxa2xx_udc to balance calls to clk_enable/clk_disable. [db: remove inline #ifdefs for IXP non-support of calls] Signed-off-by: Dmitry Baryshkov dbaryshkov@gmail.com Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/pxa2xx_udc.c | 88 +++++++++++++++++++-------------- drivers/usb/gadget/pxa2xx_udc.h | 4 +- 2 files changed, 53 insertions(+), 39 deletions(-) diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c index 4402d6f042d..096c41cc40d 100644 --- a/drivers/usb/gadget/pxa2xx_udc.c +++ b/drivers/usb/gadget/pxa2xx_udc.c @@ -103,6 +103,12 @@ static const char ep0name [] = "ep0"; #error "Can't configure both IXP and PXA" #endif +/* IXP doesn't yet support */ +#define clk_get(dev,name) NULL +#define clk_enable(clk) do { } while (0) +#define clk_disable(clk) do { } while (0) +#define clk_put(clk) do { } while (0) + #endif #include "pxa2xx_udc.h" @@ -934,20 +940,31 @@ static void udc_disable(struct pxa2xx_udc *); /* We disable the UDC -- and its 48 MHz clock -- whenever it's not * in active use. */ -static int pullup(struct pxa2xx_udc *udc, int is_active) +static int pullup(struct pxa2xx_udc *udc) { - is_active = is_active && udc->vbus && udc->pullup; + int is_active = udc->vbus && udc->pullup && !udc->suspended; DMSG("%s\n", is_active ? "active" : "inactive"); - if (is_active) - udc_enable(udc); - else { - if (udc->gadget.speed != USB_SPEED_UNKNOWN) { - DMSG("disconnect %s\n", udc->driver - ? udc->driver->driver.name - : "(no driver)"); - stop_activity(udc, udc->driver); + if (is_active) { + if (!udc->active) { + udc->active = 1; + /* Enable clock for USB device */ + clk_enable(udc->clk); + udc_enable(udc); } - udc_disable(udc); + } else { + if (udc->active) { + if (udc->gadget.speed != USB_SPEED_UNKNOWN) { + DMSG("disconnect %s\n", udc->driver + ? udc->driver->driver.name + : "(no driver)"); + stop_activity(udc, udc->driver); + } + udc_disable(udc); + /* Disable clock for USB device */ + clk_disable(udc->clk); + udc->active = 0; + } + } return 0; } @@ -958,9 +975,9 @@ static int pxa2xx_udc_vbus_session(struct usb_gadget *_gadget, int is_active) struct pxa2xx_udc *udc; udc = container_of(_gadget, struct pxa2xx_udc, gadget); - udc->vbus = is_active = (is_active != 0); + udc->vbus = (is_active != 0); DMSG("vbus %s\n", is_active ? "supplied" : "inactive"); - pullup(udc, is_active); + pullup(udc); return 0; } @@ -975,9 +992,8 @@ static int pxa2xx_udc_pullup(struct usb_gadget *_gadget, int is_active) if (!udc->mach->gpio_pullup && !udc->mach->udc_command) return -EOPNOTSUPP; - is_active = (is_active != 0); - udc->pullup = is_active; - pullup(udc, is_active); + udc->pullup = (is_active != 0); + pullup(udc); return 0; } @@ -997,7 +1013,7 @@ static const struct usb_gadget_ops pxa2xx_udc_ops = { #ifdef CONFIG_USB_GADGET_DEBUG_FS static int -udc_seq_show(struct seq_file *m, void *d) +udc_seq_show(struct seq_file *m, void *_d) { struct pxa2xx_udc *dev = m->private; unsigned long flags; @@ -1146,11 +1162,6 @@ static void udc_disable(struct pxa2xx_udc *dev) udc_clear_mask_UDCCR(UDCCR_UDE); -#ifdef CONFIG_ARCH_PXA - /* Disable clock for USB device */ - clk_disable(dev->clk); -#endif - ep0_idle (dev); dev->gadget.speed = USB_SPEED_UNKNOWN; } @@ -1191,11 +1202,6 @@ static void udc_enable (struct pxa2xx_udc *dev) { udc_clear_mask_UDCCR(UDCCR_UDE); -#ifdef CONFIG_ARCH_PXA - /* Enable clock for USB device */ - clk_enable(dev->clk); -#endif - /* try to clear these bits before we enable the udc */ udc_ack_int_UDCCR(UDCCR_SUSIR|/*UDCCR_RSTIR|*/UDCCR_RESIR); @@ -1286,7 +1292,7 @@ fail: * for set_configuration as well as eventual disconnect. */ DMSG("registered gadget driver '%s'\n", driver->driver.name); - pullup(dev, 1); + pullup(dev); dump_state(dev); return 0; } @@ -1329,7 +1335,8 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return -EINVAL; local_irq_disable(); - pullup(dev, 0); + dev->pullup = 0; + pullup(dev); stop_activity(dev, driver); local_irq_enable(); @@ -2131,13 +2138,11 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) if (irq < 0) return -ENODEV; -#ifdef CONFIG_ARCH_PXA dev->clk = clk_get(&pdev->dev, "UDCCLK"); if (IS_ERR(dev->clk)) { retval = PTR_ERR(dev->clk); goto err_clk; } -#endif pr_debug("%s: IRQ %d%s%s\n", driver_name, irq, dev->has_cfr ? "" : " (!cfr)", @@ -2250,10 +2255,8 @@ lubbock_fail0: if (dev->mach->gpio_vbus) gpio_free(dev->mach->gpio_vbus); err_gpio_vbus: -#ifdef CONFIG_ARCH_PXA clk_put(dev->clk); err_clk: -#endif return retval; } @@ -2269,7 +2272,9 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev) if (dev->driver) return -EBUSY; - udc_disable(dev); + dev->pullup = 0; + pullup(dev); + remove_debug_files(dev); if (dev->got_irq) { @@ -2289,9 +2294,7 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev) if (dev->mach->gpio_pullup) gpio_free(dev->mach->gpio_pullup); -#ifdef CONFIG_ARCH_PXA clk_put(dev->clk); -#endif platform_set_drvdata(pdev, NULL); the_controller = NULL; @@ -2317,10 +2320,15 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev) static int pxa2xx_udc_suspend(struct platform_device *dev, pm_message_t state) { struct pxa2xx_udc *udc = platform_get_drvdata(dev); + unsigned long flags; if (!udc->mach->gpio_pullup && !udc->mach->udc_command) WARN("USB host won't detect disconnect!\n"); - pullup(udc, 0); + udc->suspended = 1; + + local_irq_save(flags); + pullup(udc); + local_irq_restore(flags); return 0; } @@ -2328,8 +2336,12 @@ static int pxa2xx_udc_suspend(struct platform_device *dev, pm_message_t state) static int pxa2xx_udc_resume(struct platform_device *dev) { struct pxa2xx_udc *udc = platform_get_drvdata(dev); + unsigned long flags; - pullup(udc, 1); + udc->suspended = 0; + local_irq_save(flags); + pullup(udc); + local_irq_restore(flags); return 0; } diff --git a/drivers/usb/gadget/pxa2xx_udc.h b/drivers/usb/gadget/pxa2xx_udc.h index b67e3ff5e4e..e2c19e88c87 100644 --- a/drivers/usb/gadget/pxa2xx_udc.h +++ b/drivers/usb/gadget/pxa2xx_udc.h @@ -119,7 +119,9 @@ struct pxa2xx_udc { has_cfr : 1, req_pending : 1, req_std : 1, - req_config : 1; + req_config : 1, + suspended : 1, + active : 1; #define start_watchdog(dev) mod_timer(&dev->timer, jiffies + (HZ/200)) struct timer_list timer; -- GitLab From 350351006426471458fe50b1de1160200a1ba138 Mon Sep 17 00:00:00 2001 From: Tony Jones Date: Fri, 22 Feb 2008 00:13:36 +0100 Subject: [PATCH 399/923] USB: remove incorrect struct class_device from the printer gadget This field does nothing, and should not be allowed to stick around incase someone gets any other ideas... Signed-off-by: Tony Jones Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/printer.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 4f6bfa100f2..2c32bd08ee7 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -92,7 +92,6 @@ struct printer_dev { u8 *current_rx_buf; u8 printer_status; u8 reset_printer; - struct class_device *printer_class_dev; struct cdev printer_cdev; struct device *pdev; u8 printer_cdev_open; -- GitLab From 4ae897df80019db433cd46cdd50d3b48463757d9 Mon Sep 17 00:00:00 2001 From: Sven Andersen Date: Tue, 4 Mar 2008 22:09:11 +0100 Subject: [PATCH 400/923] USB: ftdi_sio - really enable EM1010PC Add EM1010PC to ftdi_sio.c Signed-off-by: Sven Andersen Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 17b2cc071ed..91dc433dbcf 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -281,6 +281,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) }, { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) }, { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) }, -- GitLab From d6505a5236a68c51a77df16bc4e6100b3aee2672 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Fri, 29 Feb 2008 16:12:18 -0700 Subject: [PATCH 401/923] PCI: use dev_printk in quirk messages Convert quirk printks to dev_printk(). Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index bbad4a9f264..5a4c7c35ea4 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1652,9 +1652,8 @@ static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev) pci_write_config_byte(dev, 0x75, 0x1); pci_write_config_byte(dev, 0x77, 0x0); - printk(KERN_INFO - "PCI: VIA CX700 PCI parking/caching fixup on %s\n", - pci_name(dev)); + dev_info(&dev->dev, + "Disabling VIA CX700 PCI parking/caching\n"); } } } -- GitLab From 415b6d0e894333d8e5e5a384a483a01b9b782fc7 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Fri, 29 Feb 2008 16:04:39 -0700 Subject: [PATCH 402/923] PCI: consolidate duplicated MSI enable functions Two recent patches added basically the same code to turn on HT MSI mapping: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6bae1d96c6d7dde078994f6cb98235fd46f8736b http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9dc625e72309e1c919ea3e7f51d0ffca96123787 There's no need to have both, so this patch removes one copy. Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 36 ++++++------------------------------ 1 file changed, 6 insertions(+), 30 deletions(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 5a4c7c35ea4..e9a333d9855 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1725,32 +1725,6 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2 quirk_msi_ht_cap); -/* - * Force enable MSI mapping capability on HT bridges - */ -static void __devinit quirk_msi_ht_cap_enable(struct pci_dev *dev) -{ - int pos, ttl = 48; - - pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); - while (pos && ttl--) { - u8 flags; - - if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, &flags) == 0) { - printk(KERN_INFO "PCI: Enabling HT MSI Mapping on %s\n", - pci_name(dev)); - - pci_write_config_byte(dev, pos + HT_MSI_FLAGS, - flags | HT_MSI_FLAGS_ENABLE); - } - pos = pci_find_next_ht_capability(dev, pos, - HT_CAPTYPE_MSI_MAPPING); - } -} -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, - PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB, - quirk_msi_ht_cap_enable); - /* The nVidia CK804 chipset may have 2 HT MSI mappings. * MSI are supported if the MSI capability set in any of these mappings. */ @@ -1777,9 +1751,8 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, quirk_nvidia_ck804_msi_ht_cap); -/* - * Force enable MSI mapping capability on HT bridges */ -static inline void ht_enable_msi_mapping(struct pci_dev *dev) +/* Force enable MSI mapping capability on HT bridges */ +static void __devinit ht_enable_msi_mapping(struct pci_dev *dev) { int pos, ttl = 48; @@ -1798,6 +1771,9 @@ static inline void ht_enable_msi_mapping(struct pci_dev *dev) HT_CAPTYPE_MSI_MAPPING); } } +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, + PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB, + ht_enable_msi_mapping); static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev) { @@ -1829,7 +1805,7 @@ static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev) if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, &flags) == 0) { - dev_info(&dev->dev, "Quirk disabling HT MSI mapping"); + dev_info(&dev->dev, "Disabling HT MSI mapping"); pci_write_config_byte(dev, pos + HT_MSI_FLAGS, flags & ~HT_MSI_FLAGS_ENABLE); } -- GitLab From 0ab2b57f8db8a1bcdf24089074f5d2856a3ffb42 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 17 Feb 2008 10:45:28 +0100 Subject: [PATCH 403/923] PCI: fix section mismatch warning in pci_scan_child_bus Fix following warning: WARNING: vmlinux.o(.text+0x47bdb1): Section mismatch in reference from the function pci_scan_child_bus() to the function .devinit.text:pcibios_fixup_bus() We had plenty of functions that could be annotated __devinit but due to the former restriction that exported symbols could not be annotated they were not so. So annotate these function and fix the references from the pci/hotplug/* code to silence the resuting warnings. Signed-off-by: Sam Ravnborg Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug-pci.c | 2 +- drivers/pci/hotplug/acpiphp_glue.c | 2 +- drivers/pci/hotplug/cpci_hotplug_pci.c | 2 +- drivers/pci/hotplug/pciehp_pci.c | 2 +- drivers/pci/hotplug/shpchp_pci.c | 2 +- drivers/pci/probe.c | 8 ++++---- 6 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/pci/hotplug-pci.c b/drivers/pci/hotplug-pci.c index a590ef68215..4d4a6447840 100644 --- a/drivers/pci/hotplug-pci.c +++ b/drivers/pci/hotplug-pci.c @@ -4,7 +4,7 @@ #include "pci.h" -unsigned int pci_do_scan_bus(struct pci_bus *bus) +unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus) { unsigned int max; diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index cf22f9e01e0..5e50008d118 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -1085,7 +1085,7 @@ static int acpiphp_bus_trim(acpi_handle handle) * This function should be called per *physical slot*, * not per each slot object in ACPI namespace. */ -static int enable_device(struct acpiphp_slot *slot) +static int __ref enable_device(struct acpiphp_slot *slot) { struct pci_dev *dev; struct pci_bus *bus = slot->bridge->pci_bus; diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c index 5e9be44817c..b3515fc4cd3 100644 --- a/drivers/pci/hotplug/cpci_hotplug_pci.c +++ b/drivers/pci/hotplug/cpci_hotplug_pci.c @@ -250,7 +250,7 @@ int cpci_led_off(struct slot* slot) * Device configuration functions */ -int cpci_configure_slot(struct slot* slot) +int __ref cpci_configure_slot(struct slot *slot) { struct pci_bus *parent; int fn; diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c index dd50713966d..9372a840b63 100644 --- a/drivers/pci/hotplug/pciehp_pci.c +++ b/drivers/pci/hotplug/pciehp_pci.c @@ -167,7 +167,7 @@ static void program_fw_provided_values(struct pci_dev *dev) } } -static int pciehp_add_bridge(struct pci_dev *dev) +static int __ref pciehp_add_bridge(struct pci_dev *dev) { struct pci_bus *parent = dev->bus; int pass, busnr, start = parent->secondary; diff --git a/drivers/pci/hotplug/shpchp_pci.c b/drivers/pci/hotplug/shpchp_pci.c index 0a6b25ef194..a69a2152089 100644 --- a/drivers/pci/hotplug/shpchp_pci.c +++ b/drivers/pci/hotplug/shpchp_pci.c @@ -96,7 +96,7 @@ static void program_fw_provided_values(struct pci_dev *dev) } } -int shpchp_configure_device(struct slot *p_slot) +int __ref shpchp_configure_device(struct slot *p_slot) { struct pci_dev *dev; struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate; diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 4d23b9fb551..2db2e4bb0d1 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -286,7 +286,7 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) } } -void pci_read_bridge_bases(struct pci_bus *child) +void __devinit pci_read_bridge_bases(struct pci_bus *child) { struct pci_dev *dev = child->self; u8 io_base_lo, io_limit_lo; @@ -472,7 +472,7 @@ static void pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max) * them, we proceed to assigning numbers to the remaining buses in * order to avoid overlaps between old and new bus numbers. */ -int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass) +int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass) { struct pci_bus *child; int is_cardbus = (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS); @@ -1008,7 +1008,7 @@ int pci_scan_slot(struct pci_bus *bus, int devfn) return nr; } -unsigned int pci_scan_child_bus(struct pci_bus *bus) +unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus) { unsigned int devfn, pass, max = bus->secondary; struct pci_dev *dev; @@ -1116,7 +1116,7 @@ err_out: return NULL; } -struct pci_bus *pci_scan_bus_parented(struct device *parent, +struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, int bus, struct pci_ops *ops, void *sysdata) { struct pci_bus *b; -- GitLab From 4725e7bdb831b9d4bd4ba0b0909398ebcf0c2df9 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 3 Mar 2008 14:47:13 -0800 Subject: [PATCH 404/923] PCI: fix up error messages for pci_bus registering Due to the class_device cleanup of pci_bus, the error messages when things go wrong are incorrect. So fix this up to properly report what is really happening, if things go wrong. Thanks to Kay for pointing out the issue. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/pci/bus.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index ef5a6a245f5..6a9403d79e0 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -145,13 +145,15 @@ void pci_bus_add_devices(struct pci_bus *bus) child_bus = dev->subordinate; child_bus->dev.parent = child_bus->bridge; retval = device_register(&child_bus->dev); - if (!retval) + if (retval) + dev_err(&dev->dev, "Error registering pci_bus," + " continuing...\n"); + else retval = device_create_file(&child_bus->dev, &dev_attr_cpuaffinity); if (retval) - dev_err(&dev->dev, "Error registering pci_bus" - " device bridge symlink," - " continuing...\n"); + dev_err(&dev->dev, "Error creating cpuaffinity" + " file, continuing...\n"); } } } -- GitLab From 90a1ba0c5e39eeea278f263c28ae02166c5911c8 Mon Sep 17 00:00:00 2001 From: Jonas Bonn Date: Fri, 22 Feb 2008 11:02:21 +0100 Subject: [PATCH 405/923] PCI: Add DECLARE_PCI_DEVICE_TABLE macro The definitions of struct pci_device_id arrays should generally follow the same pattern across the entire kernel. This macro defines this array as const and puts it into the __devinitconst section. There are currently many definitions scattered about the kernel that omit the __devinitdata modifier despite the documentation stating that it should always be there. These definitions really also should have been const, which wasn't possible before but has become so with the addition of the __devinitconst attribute. Furthermore, there are definitions that use "const" and __devinitdata, which is explicitly wrong but the compiler doesn't catch section mismatches if there's only one such one case in the module (which is often the case). Adding the __devinitconst modifier where there was nothing before buys us memory. Adding the const modifier gives the compiler a chance to do its thing. Changing __devinitdata to __devinitconst where it was wrong actually fixes some compiler errors in older (mid-release) kernels that were patched over by "removing" the section attribute altogether (which wastes memory). This macro makes it pretty difficult to get this definition wrong in the future... Signed-off-by: Jonas Bonn Signed-off-by: Greg Kroah-Hartman --- Documentation/pci.txt | 6 ++++-- include/linux/pci.h | 10 ++++++++++ 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/Documentation/pci.txt b/Documentation/pci.txt index 72b20c63959..bb7bd27d468 100644 --- a/Documentation/pci.txt +++ b/Documentation/pci.txt @@ -123,7 +123,8 @@ initialization with a pointer to a structure describing the driver The ID table is an array of struct pci_device_id entries ending with an -all-zero entry. Each entry consists of: +all-zero entry; use of the macro DECLARE_PCI_DEVICE_TABLE is the preferred +method of declaring the table. Each entry consists of: vendor,device Vendor and device ID to match (or PCI_ANY_ID) @@ -191,7 +192,8 @@ Tips on when/where to use the above attributes: o Do not mark the struct pci_driver. - o The ID table array should be marked __devinitdata. + o The ID table array should be marked __devinitconst; this is done + automatically if the table is declared with DECLARE_PCI_DEVICE_TABLE(). o The probe() and remove() functions should be marked __devinit and __devexit respectively. All initialization functions diff --git a/include/linux/pci.h b/include/linux/pci.h index 87195b62de5..f3165e7ac43 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -388,6 +388,16 @@ struct pci_driver { #define to_pci_driver(drv) container_of(drv, struct pci_driver, driver) +/** + * DECLARE_PCI_DEVICE_TABLE - macro used to describe a pci device table + * @_table: device table name + * + * This macro is used to create a struct pci_device_id array (a device table) + * in a generic manner. + */ +#define DECLARE_PCI_DEVICE_TABLE(_table) \ + const struct pci_device_id _table[] __devinitconst + /** * PCI_DEVICE - macro used to describe a specific pci device * @vend: the 16 bit PCI Vendor ID -- GitLab From c1ef5cbd03921047c2eafb998132e562043678a7 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Tue, 4 Mar 2008 13:01:14 -0800 Subject: [PATCH 406/923] pci: hotplug: pciehp: fix error code path in hpc_power_off_slot Fix the error code path in hpc_power_off_slot(). The Bad DLLP Mask bit must be restored before return. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp_hpc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 6eba9b2cfb9..698975a6a21 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -711,7 +711,8 @@ static int hpc_power_off_slot(struct slot * slot) retval = pcie_write_cmd(slot, slot_cmd, cmd_mask); if (retval) { err("%s: Write command failed!\n", __FUNCTION__); - return -1; + retval = -1; + goto out; } dbg("%s: SLOTCTRL %x write cmd %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); @@ -722,7 +723,7 @@ static int hpc_power_off_slot(struct slot * slot) * removed from the slot/adapter. */ msleep(1000); - + out: if (changed) pcie_unmask_bad_dllp(ctrl); -- GitLab From b6abdb0e6ca5c2c0a7caa4131da2af0750927e72 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Tue, 4 Mar 2008 14:28:19 -0800 Subject: [PATCH 407/923] cgroup: fix default notify_on_release setting The documentation says the default value of notify_on_release of a child cgroup is inherited from its parent, which is reasonable, but the implementation just sets the flag disabled. Signed-off-by: Li Zefan Acked-by: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/cgroup.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index d8abe996e00..e9c2fb01e89 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -2232,7 +2232,6 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, mutex_lock(&cgroup_mutex); - cgrp->flags = 0; INIT_LIST_HEAD(&cgrp->sibling); INIT_LIST_HEAD(&cgrp->children); INIT_LIST_HEAD(&cgrp->css_sets); @@ -2242,6 +2241,9 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, cgrp->root = parent->root; cgrp->top_cgroup = parent->top_cgroup; + if (notify_on_release(parent)) + set_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags); + for_each_subsys(root, ss) { struct cgroup_subsys_state *css = ss->create(ss, cgrp); if (IS_ERR(css)) { -- GitLab From cf655043d4ba6fb3e352d6295a6ad5c2361755c4 Mon Sep 17 00:00:00 2001 From: Andy Whitcroft Date: Tue, 4 Mar 2008 14:28:20 -0800 Subject: [PATCH 408/923] update checkpatch.pl to version 0.15 This version brings a number of minor fixes updating the type detector and the unary tracker. It also brings a few small fixes for false positives. It also reverts the --file warning. Of note: - limit CVS checks to added lines - improved type detections - fixes to the unary tracker Andy Whitcroft (13): Version: 0.15 EXPORT_SYMBOL checks need to accept array variables export checks must match DECLARE_foo and LIST_HEAD possible types: cleanup debugging missing line values: track values through preprocessor conditional paths typeof is actually a type possible types: detect definitions which cross lines values: include line numbers on value debug information values: ensure we find correctly record pending brackets values: simplify the brace history stack CVS keyword checks should only apply to added lines loosen spacing for comments allow braces for single statement blocks with multiline conditionals Harvey Harrison (1): checkpatch: remove fastcall Ingo Molnar (1): checkpatch.pl: revert wrong --file message Uwe Kleine-Koenig (1): fix typo "goot" -> "good" Signed-off-by: Andy Whitcroft Cc: Randy Dunlap Cc: Joel Schopp Cc: Ingo Molnar Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/checkpatch.pl | 323 +++++++++++++++++++++++++++--------------- 1 file changed, 206 insertions(+), 117 deletions(-) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 2086a856400..2a7cef9726e 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -9,7 +9,7 @@ use strict; my $P = $0; $P =~ s@.*/@@g; -my $V = '0.14'; +my $V = '0.15'; use Getopt::Long qw(:config no_auto_abbrev); @@ -105,8 +105,7 @@ our $Sparse = qr{ __iomem| __must_check| __init_refok| - __kprobes| - fastcall + __kprobes }x; our $Attribute = qr{ const| @@ -158,7 +157,10 @@ sub build_types { \b (?:const\s+)? (?:unsigned\s+)? - $all + (?: + $all| + (?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\) + ) (?:\s+$Sparse|\s+const)* \b }x; @@ -362,6 +364,7 @@ sub ctx_statement_block { my $type = ''; my $level = 0; + my $p; my $c; my $len = 0; @@ -386,6 +389,7 @@ sub ctx_statement_block { last; } } + $p = $c; $c = substr($blk, $off, 1); $remainder = substr($blk, $off); @@ -397,8 +401,9 @@ sub ctx_statement_block { } # An else is really a conditional as long as its not else if - if ($level == 0 && $remainder =~ /(\s+else)(?:\s|{)/ && - $remainder !~ /\s+else\s+if\b/) { + if ($level == 0 && (!defined($p) || $p =~ /(?:\s|\})/) && + $remainder =~ /(else)(?:\s|{)/ && + $remainder !~ /else\s+if\b/) { $coff = $off + length($1); } @@ -445,21 +450,73 @@ sub ctx_statement_block { $line, $remain + 1, $off - $loff + 1, $level); } +sub statement_lines { + my ($stmt) = @_; + + # Strip the diff line prefixes and rip blank lines at start and end. + $stmt =~ s/(^|\n)./$1/g; + $stmt =~ s/^\s*//; + $stmt =~ s/\s*$//; + + my @stmt_lines = ($stmt =~ /\n/g); + + return $#stmt_lines + 2; +} + +sub statement_rawlines { + my ($stmt) = @_; + + my @stmt_lines = ($stmt =~ /\n/g); + + return $#stmt_lines + 2; +} + +sub statement_block_size { + my ($stmt) = @_; + + $stmt =~ s/(^|\n)./$1/g; + $stmt =~ s/^\s*{//; + $stmt =~ s/}\s*$//; + $stmt =~ s/^\s*//; + $stmt =~ s/\s*$//; + + my @stmt_lines = ($stmt =~ /\n/g); + my @stmt_statements = ($stmt =~ /;/g); + + my $stmt_lines = $#stmt_lines + 2; + my $stmt_statements = $#stmt_statements + 1; + + if ($stmt_lines > $stmt_statements) { + return $stmt_lines; + } else { + return $stmt_statements; + } +} + sub ctx_statement_full { my ($linenr, $remain, $off) = @_; my ($statement, $condition, $level); my (@chunks); + # Grab the first conditional/block pair. ($statement, $condition, $linenr, $remain, $off, $level) = ctx_statement_block($linenr, $remain, $off); #print "F: c<$condition> s<$statement>\n"; + push(@chunks, [ $condition, $statement ]); + if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) { + return ($level, $linenr, @chunks); + } + + # Pull in the following conditional/block pairs and see if they + # could continue the statement. for (;;) { - push(@chunks, [ $condition, $statement ]); - last if (!($remain > 0 && $condition =~ /^.\s*(?:if|else|do)/)); ($statement, $condition, $linenr, $remain, $off, $level) = ctx_statement_block($linenr, $remain, $off); - #print "C: c<$condition> s<$statement>\n"; + #print "C: c<$condition> s<$statement> remain<$remain>\n"; + last if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:else|do)\b/s)); + #print "C: push\n"; + push(@chunks, [ $condition, $statement ]); } return ($level, $linenr, @chunks); @@ -593,13 +650,13 @@ sub cat_vet { } my $av_preprocessor = 0; -my $av_paren = 0; +my $av_pending; my @av_paren_type; sub annotate_reset { $av_preprocessor = 0; - $av_paren = 0; - @av_paren_type = (); + $av_pending = '_'; + @av_paren_type = ('E'); } sub annotate_values { @@ -611,12 +668,13 @@ sub annotate_values { print "$stream\n" if ($dbg_values > 1); while (length($cur)) { - print " <$type> " if ($dbg_values > 1); + print " <" . join('', @av_paren_type) . + "> <$type> " if ($dbg_values > 1); if ($cur =~ /^(\s+)/o) { print "WS($1)\n" if ($dbg_values > 1); if ($1 =~ /\n/ && $av_preprocessor) { + $type = pop(@av_paren_type); $av_preprocessor = 0; - $type = 'N'; } } elsif ($cur =~ /^($Type)/) { @@ -626,11 +684,33 @@ sub annotate_values { } elsif ($cur =~ /^(#\s*define\s*$Ident)(\(?)/o) { print "DEFINE($1)\n" if ($dbg_values > 1); $av_preprocessor = 1; - $av_paren_type[$av_paren] = 'N'; + $av_pending = 'N'; - } elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if|else|elif|endif))/o) { - print "PRE($1)\n" if ($dbg_values > 1); + } elsif ($cur =~ /^(#\s*(?:ifdef|ifndef|if))/o) { + print "PRE_START($1)\n" if ($dbg_values > 1); $av_preprocessor = 1; + + push(@av_paren_type, $type); + push(@av_paren_type, $type); + $type = 'N'; + + } elsif ($cur =~ /^(#\s*(?:else|elif))/o) { + print "PRE_RESTART($1)\n" if ($dbg_values > 1); + $av_preprocessor = 1; + + push(@av_paren_type, $av_paren_type[$#av_paren_type]); + + $type = 'N'; + + } elsif ($cur =~ /^(#\s*(?:endif))/o) { + print "PRE_END($1)\n" if ($dbg_values > 1); + + $av_preprocessor = 1; + + # Assume all arms of the conditional end as this + # one does, and continue as if the #endif was not here. + pop(@av_paren_type); + push(@av_paren_type, $type); $type = 'N'; } elsif ($cur =~ /^(\\\n)/o) { @@ -639,13 +719,13 @@ sub annotate_values { } elsif ($cur =~ /^(sizeof)\s*(\()?/o) { print "SIZEOF($1)\n" if ($dbg_values > 1); if (defined $2) { - $av_paren_type[$av_paren] = 'V'; + $av_pending = 'V'; } $type = 'N'; } elsif ($cur =~ /^(if|while|typeof|__typeof__|for)\b/o) { print "COND($1)\n" if ($dbg_values > 1); - $av_paren_type[$av_paren] = 'N'; + $av_pending = 'N'; $type = 'N'; } elsif ($cur =~/^(return|case|else)/o) { @@ -654,14 +734,14 @@ sub annotate_values { } elsif ($cur =~ /^(\()/o) { print "PAREN('$1')\n" if ($dbg_values > 1); - $av_paren++; + push(@av_paren_type, $av_pending); + $av_pending = '_'; $type = 'N'; } elsif ($cur =~ /^(\))/o) { - $av_paren-- if ($av_paren > 0); - if (defined $av_paren_type[$av_paren]) { - $type = $av_paren_type[$av_paren]; - undef $av_paren_type[$av_paren]; + my $new_type = pop(@av_paren_type); + if ($new_type ne '_') { + $type = $new_type; print "PAREN('$1') -> $type\n" if ($dbg_values > 1); } else { @@ -670,7 +750,7 @@ sub annotate_values { } elsif ($cur =~ /^($Ident)\(/o) { print "FUNC($1)\n" if ($dbg_values > 1); - $av_paren_type[$av_paren] = 'V'; + $av_pending = 'V'; } elsif ($cur =~ /^($Ident|$Constant)/o) { print "IDENT($1)\n" if ($dbg_values > 1); @@ -680,11 +760,11 @@ sub annotate_values { print "ASSIGN($1)\n" if ($dbg_values > 1); $type = 'N'; - } elsif ($cur =~/^(;)/) { + } elsif ($cur =~/^(;|{|})/) { print "END($1)\n" if ($dbg_values > 1); $type = 'E'; - } elsif ($cur =~ /^(;|{|}|\?|:|\[)/o) { + } elsif ($cur =~ /^(;|\?|:|\[)/o) { print "CLOSE($1)\n" if ($dbg_values > 1); $type = 'N'; @@ -988,7 +1068,7 @@ sub process { } # check for RCS/CVS revision markers - if ($rawline =~ /\$(Revision|Log|Id)(?:\$|)/) { + if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) { WARN("CVS style keyword markers, these will _not_ be updated\n". $herecurr); } @@ -999,41 +1079,44 @@ sub process { # Check for potential 'bare' types if ($realcnt) { + my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0); + $s =~ s/\n./ /g; + $s =~ s/{.*$//; + # Ignore goto labels. - if ($line =~ /$Ident:\*$/) { + if ($s =~ /$Ident:\*$/) { # Ignore functions being called - } elsif ($line =~ /^.\s*$Ident\s*\(/) { + } elsif ($s =~ /^.\s*$Ident\s*\(/) { # definitions in global scope can only start with types - } elsif ($line =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) { - possible($1, $line); + } elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b/) { + possible($1, $s); # declarations always start with types - } elsif ($prev_values eq 'E' && $line =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/) { - possible($1); + } elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:const\s+)?($Ident)\b(:?\s+$Sparse)?\s*\**\s*$Ident\s*(?:;|=|,)/) { + possible($1, $s); } # any (foo ... *) is a pointer cast, and foo is a type - while ($line =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) { - possible($1, $line); + while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/g) { + possible($1, $s); } # Check for any sort of function declaration. # int foo(something bar, other baz); # void (*store_gdt)(x86_descr_ptr *); - if ($prev_values eq 'E' && $line =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/) { + if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/) { my ($name_len) = length($1); - my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, $name_len); - my $ctx = join("\n", @ctx); - $ctx =~ s/\n.//; + my $ctx = $s; substr($ctx, 0, $name_len + 1) = ''; $ctx =~ s/\)[^\)]*$//; + for my $arg (split(/\s*,\s*/, $ctx)) { if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/ || $arg =~ /^($Ident)$/) { - possible($1, $line); + possible($1, $s); } } } @@ -1100,8 +1183,8 @@ sub process { $curr_values = $prev_values . $curr_values; if ($dbg_values) { my $outline = $opline; $outline =~ s/\t/ /g; - warn "--> .$outline\n"; - warn "--> $curr_values\n"; + print "$linenr > .$outline\n"; + print "$linenr > $curr_values\n"; } $prev_values = substr($curr_values, -1); @@ -1148,7 +1231,9 @@ sub process { if (($prevline !~ /^}/) && ($prevline !~ /^\+}/) && ($prevline !~ /^ }/) && - ($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=)/)) { + ($prevline !~ /^.DECLARE_$Ident\(\Q$name\E\)/) && + ($prevline !~ /^.LIST_HEAD\(\Q$name\E\)/) && + ($prevline !~ /\b\Q$name\E(?:\s+$Attribute)?\s*(?:;|=|\[)/)) { WARN("EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr); } } @@ -1266,7 +1351,7 @@ sub process { =>|->|<<|>>|<|>|=|!|~| &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|% }x; - my @elements = split(/($;+|$ops|;)/, $opline); + my @elements = split(/($ops|;)/, $opline); my $off = 0; my $blank = copy_spacing($opline); @@ -1277,6 +1362,7 @@ sub process { my $a = ''; $a = 'V' if ($elements[$n] ne ''); $a = 'W' if ($elements[$n] =~ /\s$/); + $a = 'C' if ($elements[$n] =~ /$;$/); $a = 'B' if ($elements[$n] =~ /(\[|\()$/); $a = 'O' if ($elements[$n] eq ''); $a = 'E' if ($elements[$n] eq '' && $n == 0); @@ -1287,6 +1373,7 @@ sub process { if (defined $elements[$n + 2]) { $c = 'V' if ($elements[$n + 2] ne ''); $c = 'W' if ($elements[$n + 2] =~ /^\s/); + $c = 'C' if ($elements[$n + 2] =~ /^$;/); $c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/); $c = 'O' if ($elements[$n + 2] eq ''); $c = 'E' if ($elements[$n + 2] =~ /\s*\\$/); @@ -1330,13 +1417,13 @@ sub process { if ($op_type ne 'V' && $ca =~ /\s$/ && $cc =~ /^\s*,/) { - # Ignore comments - } elsif ($op =~ /^$;+$/) { +# # Ignore comments +# } elsif ($op =~ /^$;+$/) { # ; should have either the end of line or a space or \ after it } elsif ($op eq ';') { - if ($ctx !~ /.x[WEB]/ && $cc !~ /^\\/ && - $cc !~ /^;/) { + if ($ctx !~ /.x[WEBC]/ && + $cc !~ /^\\/ && $cc !~ /^;/) { ERROR("need space after that '$op' $at\n" . $hereptr); } @@ -1351,7 +1438,7 @@ sub process { # , must have a space on the right. } elsif ($op eq ',') { - if ($ctx !~ /.xW|.xE/ && $cc !~ /^}/) { + if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) { ERROR("need space after that '$op' $at\n" . $hereptr); } @@ -1364,7 +1451,7 @@ sub process { # unary operator, or a cast } elsif ($op eq '!' || $op eq '~' || ($is_unary && ($op eq '*' || $op eq '-' || $op eq '&'))) { - if ($ctx !~ /[WEB]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) { + if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) { ERROR("need space before that '$op' $at\n" . $hereptr); } if ($ctx =~ /.xW/) { @@ -1373,7 +1460,7 @@ sub process { # unary ++ and unary -- are allowed no space on one side. } elsif ($op eq '++' or $op eq '--') { - if ($ctx !~ /[WOB]x[^W]/ && $ctx !~ /[^W]x[WOBE]/) { + if ($ctx !~ /[WOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) { ERROR("need space one side of that '$op' $at\n" . $hereptr); } if ($ctx =~ /WxB/ || ($ctx =~ /Wx./ && $cc =~ /^;/)) { @@ -1387,13 +1474,13 @@ sub process { $op eq '*' or $op eq '/' or $op eq '%') { - if ($ctx !~ /VxV|WxW|VxE|WxE|VxO/) { + if ($ctx !~ /VxV|WxW|VxE|WxE|VxO|Cx.|.xC/) { ERROR("need consistent spacing around '$op' $at\n" . $hereptr); } # All the others need spaces both sides. - } elsif ($ctx !~ /[EW]x[WE]/) { + } elsif ($ctx !~ /[EWC]x[CWE]/) { # Ignore email addresses if (!($op eq '<' && $cb =~ /$;\S+\@\S+>/) && !($op eq '>' && $cb =~ /<\S+\@\S+$;/)) { @@ -1551,7 +1638,7 @@ sub process { # multi-statement macros should be enclosed in a do while loop, grab the # first statement and ensure its the whole macro if its not enclosed -# in a known goot container +# in a known good container if ($prevline =~ /\#define.*\\/ && $prevline !~/(?:do\s+{|\(\{|\{)/ && $line !~ /(?:do\s+{|\(\{|\{)/ && @@ -1599,84 +1686,95 @@ sub process { # check for redundant bracing round if etc if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) { my ($level, $endln, @chunks) = - ctx_statement_full($linenr, $realcnt, 0); + ctx_statement_full($linenr, $realcnt, 1); #print "chunks<$#chunks> linenr<$linenr> endln<$endln> level<$level>\n"; - if ($#chunks > 1 && $level == 0) { + #print "APW: <<$chunks[1][0]>><<$chunks[1][1]>>\n"; + if ($#chunks > 0 && $level == 0) { my $allowed = 0; my $seen = 0; + my $herectx = $here . "\n";; + my $ln = $linenr - 1; for my $chunk (@chunks) { my ($cond, $block) = @{$chunk}; + $herectx .= "$rawlines[$ln]\n[...]\n"; + $ln += statement_rawlines($block) - 1; + substr($block, 0, length($cond)) = ''; $seen++ if ($block =~ /^\s*{/); - $block =~ s/(^|\n)./$1/g; - $block =~ s/^\s*{//; - $block =~ s/}\s*$//; - $block =~ s/^\s*//; - $block =~ s/\s*$//; - - my @lines = ($block =~ /\n/g); - my @statements = ($block =~ /;/g); - - #print "cond<$cond> block<$block> lines<" . scalar(@lines) . "> statements<" . scalar(@statements) . "> seen<$seen> allowed<$allowed>\n"; - if (scalar(@lines) != 0) { + #print "cond<$cond> block<$block> allowed<$allowed>\n"; + if (statement_lines($cond) > 1) { + #print "APW: ALLOWED: cond<$cond>\n"; $allowed = 1; } if ($block =~/\b(?:if|for|while)\b/) { + #print "APW: ALLOWED: block<$block>\n"; $allowed = 1; } - if (scalar(@statements) > 1) { + if (statement_block_size($block) > 1) { + #print "APW: ALLOWED: lines block<$block>\n"; $allowed = 1; } } if ($seen && !$allowed) { - WARN("braces {} are not necessary for any arm of this statement\n" . $herecurr); - $suppress_ifbraces = $endln; + WARN("braces {} are not necessary for any arm of this statement\n" . $herectx); } + # Either way we have looked over this whole + # statement and said what needs to be said. + $suppress_ifbraces = $endln; } } if ($linenr > $suppress_ifbraces && $line =~ /\b(if|while|for|else)\b/) { - # Locate the end of the opening statement. - my @control = ctx_statement($linenr, $realcnt, 0); - my $nr = $linenr + (scalar(@control) - 1); - my $cnt = $realcnt - (scalar(@control) - 1); - - my $off = $realcnt - $cnt; - #print "$off: line<$line>end<" . $lines[$nr - 1] . ">\n"; - - # If this is is a braced statement group check it - if ($lines[$nr - 1] =~ /{\s*$/) { - my ($lvl, @block) = ctx_block_level($nr, $cnt); - - my $stmt = join("\n", @block); - # Drop the diff line leader. - $stmt =~ s/\n./\n/g; - # Drop the code outside the block. - $stmt =~ s/(^[^{]*){\s*//; - my $before = $1; - $stmt =~ s/\s*}([^}]*$)//; - my $after = $1; - - #print "block<" . join(' ', @block) . "><" . scalar(@block) . ">\n"; - #print "before<$before> stmt<$stmt> after<$after>\n\n"; - - # Count the newlines, if there is only one - # then the block should not have {}'s. - my @lines = ($stmt =~ /\n/g); - my @statements = ($stmt =~ /;/g); - #print "lines<" . scalar(@lines) . ">\n"; - #print "statements<" . scalar(@statements) . ">\n"; - if ($lvl == 0 && scalar(@lines) == 0 && - scalar(@statements) < 2 && - $stmt !~ /{/ && $stmt !~ /\bif\b/ && - $before !~ /}/ && $after !~ /{/) { - my $herectx = "$here\n" . join("\n", @control, @block[1 .. $#block]) . "\n"; - shift(@block); - WARN("braces {} are not necessary for single statement blocks\n" . $herectx); + my ($level, $endln, @chunks) = + ctx_statement_full($linenr, $realcnt, $-[0]); + + my $allowed = 0; + + # Check the pre-context. + if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) { + #print "APW: ALLOWED: pre<$1>\n"; + $allowed = 1; + } + # Check the condition. + my ($cond, $block) = @{$chunks[0]}; + if (defined $cond) { + substr($block, 0, length($cond)) = ''; + } + if (statement_lines($cond) > 1) { + #print "APW: ALLOWED: cond<$cond>\n"; + $allowed = 1; + } + if ($block =~/\b(?:if|for|while)\b/) { + #print "APW: ALLOWED: block<$block>\n"; + $allowed = 1; + } + if (statement_block_size($block) > 1) { + #print "APW: ALLOWED: lines block<$block>\n"; + $allowed = 1; + } + # Check the post-context. + if (defined $chunks[1]) { + my ($cond, $block) = @{$chunks[1]}; + if (defined $cond) { + substr($block, 0, length($cond)) = ''; + } + if ($block =~ /^\s*\{/) { + #print "APW: ALLOWED: chunk-1 block<$block>\n"; + $allowed = 1; + } + } + if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) { + my $herectx = $here . "\n";; + my $end = $linenr + statement_rawlines($block) - 1; + + for (my $ln = $linenr - 1; $ln < $end; $ln++) { + $herectx .= $rawlines[$ln] . "\n";; } + + WARN("braces {} are not necessary for single statement blocks\n" . $herectx); } } @@ -1828,15 +1926,6 @@ sub process { print "are false positives report them to the maintainer, see\n"; print "CHECKPATCH in MAINTAINERS.\n"; } - print < Date: Tue, 4 Mar 2008 14:28:21 -0800 Subject: [PATCH 409/923] serial: add PNP ID GVC0303 for Archtek 3334BRV ISA modem Thomas Lehmann verified that this entry works. Signed-off-by: Bjorn Helgaas Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/serial/8250_pnp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c index 6f09cbd7fc4..97c68d021d2 100644 --- a/drivers/serial/8250_pnp.c +++ b/drivers/serial/8250_pnp.c @@ -91,6 +91,8 @@ static const struct pnp_device_id pnp_dev_table[] = { /* Archtek America Corp. */ /* Archtek SmartLink Modem 3334BT Plug & Play */ { "GVC000F", 0 }, + /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */ + { "GVC0303", 0 }, /* Hayes */ /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */ { "HAY0001", 0 }, -- GitLab From a10568733cdff03cac742955c7254585451f5431 Mon Sep 17 00:00:00 2001 From: Jesper Nilsson Date: Tue, 4 Mar 2008 14:28:23 -0800 Subject: [PATCH 410/923] CRIS v10: Include mm.h instead of vmstat.h in kernel/time.c Commit 2f569afd9ced9ebec9a6eb3dbf6f83429be0a7b4 (CONFIG_HIGHPTE vs. sub-page page tables) introduced use of inc_zone_page_state and dec_zone_page_state in include/linux/mm.h. Those are defined in include/linux/vmstat.h, but after it includes mm.h, making it impossible to include vmstat.h since inc_zone_page_state and dec_zone_page_state then would be undefined. arch/cris/arch-v10/kernel/time.c does just this, which makes the CRIS v10 build break with the following error: ... CC arch/cris/arch-v10/kernel/time.o In file included from include/linux/vmstat.h:7, from arch/cris/arch-v10/kernel/time.c:17: include/linux/mm.h: In function 'pgtable_page_ctor': include/linux/mm.h:902: error: implicit declaration of function 'inc_zone_page_state' include/linux/mm.h: In function 'pgtable_page_dtor': include/linux/mm.h:908: error: implicit declaration of function 'dec_zone_page_state' make[2]: *** [arch/cris/arch-v10/kernel/time.o] Error 1 make[1]: *** [arch/cris/arch-v10/kernel] Error 2 make: *** [sub-make] Error 2 ... By changing kernel/time.c to include linux/mm.h, the build succeeds. Signed-off-by: Jesper Nilsson Cc: Mikael Starvik Cc: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/cris/arch-v10/kernel/time.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/cris/arch-v10/kernel/time.c b/arch/cris/arch-v10/kernel/time.c index 9310a7b476e..525483f0ddf 100644 --- a/arch/cris/arch-v10/kernel/time.c +++ b/arch/cris/arch-v10/kernel/time.c @@ -13,7 +13,7 @@ #include #include #include -#include +#include #include #include #include -- GitLab From fb78922ce9c71b24c4af1ffc9c3d60c57ac471fb Mon Sep 17 00:00:00 2001 From: Balbir Singh Date: Tue, 4 Mar 2008 14:28:24 -0800 Subject: [PATCH 411/923] Memory Resource Controller use strstrip while parsing arguments The memory controller has a requirement that while writing values, we need to use echo -n. This patch fixes the problem and makes the UI more consistent. Signed-off-by: Balbir Singh Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/controllers/memory.txt | 6 +++--- kernel/res_counter.c | 1 + 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/Documentation/controllers/memory.txt b/Documentation/controllers/memory.txt index 6015347b41e..fba6af45225 100644 --- a/Documentation/controllers/memory.txt +++ b/Documentation/controllers/memory.txt @@ -164,7 +164,7 @@ c. Enable CONFIG_CGROUP_MEM_CONT Since now we're in the 0 cgroup, We can alter the memory limit: -# echo -n 4M > /cgroups/0/memory.limit_in_bytes +# echo 4M > /cgroups/0/memory.limit_in_bytes NOTE: We can use a suffix (k, K, m, M, g or G) to indicate values in kilo, mega or gigabytes. @@ -185,7 +185,7 @@ number of factors, such as rounding up to page boundaries or the total availability of memory on the system. The user is required to re-read this file after a write to guarantee the value committed by the kernel. -# echo -n 1 > memory.limit_in_bytes +# echo 1 > memory.limit_in_bytes # cat memory.limit_in_bytes 4096 @@ -197,7 +197,7 @@ caches, RSS and Active pages/Inactive pages are shown. The memory.force_empty gives an interface to drop *all* charges by force. -# echo -n 1 > memory.force_empty +# echo 1 > memory.force_empty will drop all charges in cgroup. Currently, this is maintained for test. diff --git a/kernel/res_counter.c b/kernel/res_counter.c index 16cbec2d5d6..efbfc0fc232 100644 --- a/kernel/res_counter.c +++ b/kernel/res_counter.c @@ -113,6 +113,7 @@ ssize_t res_counter_write(struct res_counter *counter, int member, ret = -EINVAL; + strstrip(buf); if (write_strategy) { if (write_strategy(buf, &tmp)) { goto out_free; -- GitLab From c46288b09e1a5b5741a7e1a575d5f53f79132d39 Mon Sep 17 00:00:00 2001 From: Byron Bradley Date: Tue, 4 Mar 2008 14:28:25 -0800 Subject: [PATCH 412/923] rtc: add support for the S-35390A RTC chip This adds basic get/set time support for the Seiko Instruments S-35390A. This chip communicates using I2C and is used on the QNAP TS-109/TS-209 NAS devices. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Byron Bradley Acked-by: Jean Delvare Acked-by: David Brownell Tested-by: Tim Ellis Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/Kconfig | 9 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-s35390a.c | 316 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 326 insertions(+) create mode 100644 drivers/rtc/rtc-s35390a.c diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 6402d699072..82f5ad9c3af 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -250,6 +250,15 @@ config RTC_DRV_TWL92330 platforms. The support is integrated with the rest of the Menelaus driver; it's not separate module. +config RTC_DRV_S35390A + tristate "Seiko Instruments S-35390A" + help + If you say yes here you will get support for the Seiko + Instruments S-35390A. + + This driver can also be built as a module. If so the module + will be called rtc-s35390a. + endif # I2C comment "SPI RTC drivers" diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index ec703f34ab8..872f1218ff9 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -45,6 +45,7 @@ obj-$(CONFIG_RTC_DRV_R9701) += rtc-r9701.o obj-$(CONFIG_RTC_DRV_RS5C313) += rtc-rs5c313.o obj-$(CONFIG_RTC_DRV_RS5C348) += rtc-rs5c348.o obj-$(CONFIG_RTC_DRV_RS5C372) += rtc-rs5c372.o +obj-$(CONFIG_RTC_DRV_S35390A) += rtc-s35390a.o obj-$(CONFIG_RTC_DRV_S3C) += rtc-s3c.o obj-$(CONFIG_RTC_DRV_SA1100) += rtc-sa1100.o obj-$(CONFIG_RTC_DRV_SH) += rtc-sh.o diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c new file mode 100644 index 00000000000..e8abc90c32c --- /dev/null +++ b/drivers/rtc/rtc-s35390a.c @@ -0,0 +1,316 @@ +/* + * Seiko Instruments S-35390A RTC Driver + * + * Copyright (c) 2007 Byron Bradley + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include +#include +#include +#include +#include +#include + +#define S35390A_CMD_STATUS1 0 +#define S35390A_CMD_STATUS2 1 +#define S35390A_CMD_TIME1 2 + +#define S35390A_BYTE_YEAR 0 +#define S35390A_BYTE_MONTH 1 +#define S35390A_BYTE_DAY 2 +#define S35390A_BYTE_WDAY 3 +#define S35390A_BYTE_HOURS 4 +#define S35390A_BYTE_MINS 5 +#define S35390A_BYTE_SECS 6 + +#define S35390A_FLAG_POC 0x01 +#define S35390A_FLAG_BLD 0x02 +#define S35390A_FLAG_24H 0x40 +#define S35390A_FLAG_RESET 0x80 +#define S35390A_FLAG_TEST 0x01 + +struct s35390a { + struct i2c_client *client[8]; + struct rtc_device *rtc; + int twentyfourhour; +}; + +static int s35390a_set_reg(struct s35390a *s35390a, int reg, char *buf, int len) +{ + struct i2c_client *client = s35390a->client[reg]; + struct i2c_msg msg[] = { + { client->addr, 0, len, buf }, + }; + + if ((i2c_transfer(client->adapter, msg, 1)) != 1) + return -EIO; + + return 0; +} + +static int s35390a_get_reg(struct s35390a *s35390a, int reg, char *buf, int len) +{ + struct i2c_client *client = s35390a->client[reg]; + struct i2c_msg msg[] = { + { client->addr, I2C_M_RD, len, buf }, + }; + + if ((i2c_transfer(client->adapter, msg, 1)) != 1) + return -EIO; + + return 0; +} + +static int s35390a_reset(struct s35390a *s35390a) +{ + char buf[1]; + + if (s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf)) < 0) + return -EIO; + + if (!(buf[0] & (S35390A_FLAG_POC | S35390A_FLAG_BLD))) + return 0; + + buf[0] |= (S35390A_FLAG_RESET | S35390A_FLAG_24H); + buf[0] &= 0xf0; + return s35390a_set_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf)); +} + +static int s35390a_disable_test_mode(struct s35390a *s35390a) +{ + char buf[1]; + + if (s35390a_get_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf)) < 0) + return -EIO; + + if (!(buf[0] & S35390A_FLAG_TEST)) + return 0; + + buf[0] &= ~S35390A_FLAG_TEST; + return s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf)); +} + +static char s35390a_hr2reg(struct s35390a *s35390a, int hour) +{ + if (s35390a->twentyfourhour) + return BIN2BCD(hour); + + if (hour < 12) + return BIN2BCD(hour); + + return 0x40 | BIN2BCD(hour - 12); +} + +static int s35390a_reg2hr(struct s35390a *s35390a, char reg) +{ + unsigned hour; + + if (s35390a->twentyfourhour) + return BCD2BIN(reg & 0x3f); + + hour = BCD2BIN(reg & 0x3f); + if (reg & 0x40) + hour += 12; + + return hour; +} + +static int s35390a_set_datetime(struct i2c_client *client, struct rtc_time *tm) +{ + struct s35390a *s35390a = i2c_get_clientdata(client); + int i, err; + char buf[7]; + + dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d mday=%d, " + "mon=%d, year=%d, wday=%d\n", __func__, tm->tm_sec, + tm->tm_min, tm->tm_hour, tm->tm_mday, tm->tm_mon, tm->tm_year, + tm->tm_wday); + + buf[S35390A_BYTE_YEAR] = BIN2BCD(tm->tm_year - 100); + buf[S35390A_BYTE_MONTH] = BIN2BCD(tm->tm_mon + 1); + buf[S35390A_BYTE_DAY] = BIN2BCD(tm->tm_mday); + buf[S35390A_BYTE_WDAY] = BIN2BCD(tm->tm_wday); + buf[S35390A_BYTE_HOURS] = s35390a_hr2reg(s35390a, tm->tm_hour); + buf[S35390A_BYTE_MINS] = BIN2BCD(tm->tm_min); + buf[S35390A_BYTE_SECS] = BIN2BCD(tm->tm_sec); + + /* This chip expects the bits of each byte to be in reverse order */ + for (i = 0; i < 7; ++i) + buf[i] = bitrev8(buf[i]); + + err = s35390a_set_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf)); + + return err; +} + +static int s35390a_get_datetime(struct i2c_client *client, struct rtc_time *tm) +{ + struct s35390a *s35390a = i2c_get_clientdata(client); + char buf[7]; + int i, err; + + err = s35390a_get_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf)); + if (err < 0) + return err; + + /* This chip returns the bits of each byte in reverse order */ + for (i = 0; i < 7; ++i) + buf[i] = bitrev8(buf[i]); + + tm->tm_sec = BCD2BIN(buf[S35390A_BYTE_SECS]); + tm->tm_min = BCD2BIN(buf[S35390A_BYTE_MINS]); + tm->tm_hour = s35390a_reg2hr(s35390a, buf[S35390A_BYTE_HOURS]); + tm->tm_wday = BCD2BIN(buf[S35390A_BYTE_WDAY]); + tm->tm_mday = BCD2BIN(buf[S35390A_BYTE_DAY]); + tm->tm_mon = BCD2BIN(buf[S35390A_BYTE_MONTH]) - 1; + tm->tm_year = BCD2BIN(buf[S35390A_BYTE_YEAR]) + 100; + + dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, mday=%d, " + "mon=%d, year=%d, wday=%d\n", __func__, tm->tm_sec, + tm->tm_min, tm->tm_hour, tm->tm_mday, tm->tm_mon, tm->tm_year, + tm->tm_wday); + + return rtc_valid_tm(tm); +} + +static int s35390a_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + return s35390a_get_datetime(to_i2c_client(dev), tm); +} + +static int s35390a_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + return s35390a_set_datetime(to_i2c_client(dev), tm); +} + +static const struct rtc_class_ops s35390a_rtc_ops = { + .read_time = s35390a_rtc_read_time, + .set_time = s35390a_rtc_set_time, +}; + +static struct i2c_driver s35390a_driver; + +static int s35390a_probe(struct i2c_client *client) +{ + int err; + unsigned int i; + struct s35390a *s35390a; + struct rtc_time tm; + char buf[1]; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { + err = -ENODEV; + goto exit; + } + + s35390a = kzalloc(sizeof(struct s35390a), GFP_KERNEL); + if (!s35390a) { + err = -ENOMEM; + goto exit; + } + + s35390a->client[0] = client; + i2c_set_clientdata(client, s35390a); + + /* This chip uses multiple addresses, use dummy devices for them */ + for (i = 1; i < 8; ++i) { + s35390a->client[i] = i2c_new_dummy(client->adapter, + client->addr + i, "rtc-s35390a"); + if (!s35390a->client[i]) { + dev_err(&client->dev, "Address %02x unavailable\n", + client->addr + i); + err = -EBUSY; + goto exit_dummy; + } + } + + err = s35390a_reset(s35390a); + if (err < 0) { + dev_err(&client->dev, "error resetting chip\n"); + goto exit_dummy; + } + + err = s35390a_disable_test_mode(s35390a); + if (err < 0) { + dev_err(&client->dev, "error disabling test mode\n"); + goto exit_dummy; + } + + err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, buf, sizeof(buf)); + if (err < 0) { + dev_err(&client->dev, "error checking 12/24 hour mode\n"); + goto exit_dummy; + } + if (buf[0] & S35390A_FLAG_24H) + s35390a->twentyfourhour = 1; + else + s35390a->twentyfourhour = 0; + + if (s35390a_get_datetime(client, &tm) < 0) + dev_warn(&client->dev, "clock needs to be set\n"); + + s35390a->rtc = rtc_device_register(s35390a_driver.driver.name, + &client->dev, &s35390a_rtc_ops, THIS_MODULE); + + if (IS_ERR(s35390a->rtc)) { + err = PTR_ERR(s35390a->rtc); + goto exit_dummy; + } + return 0; + +exit_dummy: + for (i = 1; i < 8; ++i) + if (s35390a->client[i]) + i2c_unregister_device(s35390a->client[i]); + kfree(s35390a); + i2c_set_clientdata(client, NULL); + +exit: + return err; +} + +static int s35390a_remove(struct i2c_client *client) +{ + unsigned int i; + + struct s35390a *s35390a = i2c_get_clientdata(client); + for (i = 1; i < 8; ++i) + if (s35390a->client[i]) + i2c_unregister_device(s35390a->client[i]); + + rtc_device_unregister(s35390a->rtc); + kfree(s35390a); + i2c_set_clientdata(client, NULL); + + return 0; +} + +static struct i2c_driver s35390a_driver = { + .driver = { + .name = "rtc-s35390a", + }, + .probe = s35390a_probe, + .remove = s35390a_remove, +}; + +static int __init s35390a_rtc_init(void) +{ + return i2c_add_driver(&s35390a_driver); +} + +static void __exit s35390a_rtc_exit(void) +{ + i2c_del_driver(&s35390a_driver); +} + +MODULE_AUTHOR("Byron Bradley "); +MODULE_DESCRIPTION("S35390A RTC driver"); +MODULE_LICENSE("GPL"); + +module_init(s35390a_rtc_init); +module_exit(s35390a_rtc_exit); -- GitLab From 83c7c693ed3e61535ad6a097ad991a88aafc54b8 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Tue, 4 Mar 2008 14:28:26 -0800 Subject: [PATCH 413/923] specialix.c: fix possible double-unlock Noticed by sparse, trivial to see: drivers/char/specialix.c:2112:3: warning: context imbalance in 'sx_throttle' - unexpected unlock Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/specialix.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c index c0e08c7bca2..5ff83df67b4 100644 --- a/drivers/char/specialix.c +++ b/drivers/char/specialix.c @@ -2109,7 +2109,6 @@ static void sx_throttle(struct tty_struct * tty) sx_out(bp, CD186x_CAR, port_No(port)); spin_unlock_irqrestore(&bp->lock, flags); if (I_IXOFF(tty)) { - spin_unlock_irqrestore(&bp->lock, flags); sx_wait_CCR(bp); spin_lock_irqsave(&bp->lock, flags); sx_out(bp, CD186x_CCR, CCR_SSCH2); -- GitLab From 7560fa60fcdcdb0da662f6a9fad9064b554ef46c Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 4 Mar 2008 14:28:27 -0800 Subject: [PATCH 414/923] gpio: and "no GPIO support here" stubs Add a defining fail/warn stubs for GPIO calls on platforms that don't support the GPIO programming interface. That includes the arch-specific implementation glue otherwise. This facilitates a new model for GPIO usage: drivers that can use GPIOs if they're available, but don't require them. One example of such a driver is NAND driver for various FreeScale chips. On platforms update with GPIO support, they can be used instead of a worst-case delay to verify that the BUSY signal is off. (Also includes a couple minor unrelated doc updates.) Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/gpio.txt | 16 +++++-- include/linux/gpio.h | 95 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 107 insertions(+), 4 deletions(-) create mode 100644 include/linux/gpio.h diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt index 8da724e2a0f..54630095aa3 100644 --- a/Documentation/gpio.txt +++ b/Documentation/gpio.txt @@ -2,6 +2,9 @@ GPIO Interfaces This provides an overview of GPIO access conventions on Linux. +These calls use the gpio_* naming prefix. No other calls should use that +prefix, or the related __gpio_* prefix. + What is a GPIO? =============== @@ -69,11 +72,13 @@ in this document, but drivers acting as clients to the GPIO interface must not care how it's implemented.) That said, if the convention is supported on their platform, drivers should -use it when possible. Platforms should declare GENERIC_GPIO support in -Kconfig (boolean true), which multi-platform drivers can depend on when -using the include file: +use it when possible. Platforms must declare GENERIC_GPIO support in their +Kconfig (boolean true), and provide an file. Drivers that can't +work without standard GPIO calls should have Kconfig entries which depend +on GENERIC_GPIO. The GPIO calls are available, either as "real code" or as +optimized-away stubs, when drivers use the include file: - #include + #include If you stick to this convention then it'll be easier for other developers to see what your code is doing, and help maintain it. @@ -316,6 +321,9 @@ pulldowns integrated on some platforms. Not all platforms support them, or support them in the same way; and any given board might use external pullups (or pulldowns) so that the on-chip ones should not be used. (When a circuit needs 5 kOhm, on-chip 100 kOhm resistors won't do.) +Likewise drive strength (2 mA vs 20 mA) and voltage (1.8V vs 3.3V) is a +platform-specific issue, as are models like (not) having a one-to-one +correspondence between configurable pins and GPIOs. There are other system-specific mechanisms that are not specified here, like the aforementioned options for input de-glitching and wire-OR output. diff --git a/include/linux/gpio.h b/include/linux/gpio.h new file mode 100644 index 00000000000..4987a84078e --- /dev/null +++ b/include/linux/gpio.h @@ -0,0 +1,95 @@ +#ifndef __LINUX_GPIO_H +#define __LINUX_GPIO_H + +/* see Documentation/gpio.txt */ + +#ifdef CONFIG_GENERIC_GPIO +#include + +#else + +/* + * Some platforms don't support the GPIO programming interface. + * + * In case some driver uses it anyway (it should normally have + * depended on GENERIC_GPIO), these routines help the compiler + * optimize out much GPIO-related code ... or trigger a runtime + * warning when something is wrongly called. + */ + +static inline int gpio_is_valid(int number) +{ + return 0; +} + +static inline int gpio_request(unsigned gpio, const char *label) +{ + return -ENOSYS; +} + +static inline void gpio_free(unsigned gpio) +{ + /* GPIO can never have been requested */ + WARN_ON(1); +} + +static inline int gpio_direction_input(unsigned gpio) +{ + return -ENOSYS; +} + +static inline int gpio_direction_output(unsigned gpio, int value) +{ + return -ENOSYS; +} + +static inline int gpio_get_value(unsigned gpio) +{ + /* GPIO can never have been requested or set as {in,out}put */ + WARN_ON(1); + return 0; +} + +static inline void gpio_set_value(unsigned gpio, int value) +{ + /* GPIO can never have been requested or set as output */ + WARN_ON(1); +} + +static inline int gpio_cansleep(unsigned gpio) +{ + /* GPIO can never have been requested or set as {in,out}put */ + WARN_ON(1); + return 0; +} + +static inline int gpio_get_value_cansleep(unsigned gpio) +{ + /* GPIO can never have been requested or set as {in,out}put */ + WARN_ON(1); + return 0; +} + +static inline void gpio_set_value_cansleep(unsigned gpio, int value) +{ + /* GPIO can never have been requested or set as output */ + WARN_ON(1); +} + +static inline int gpio_to_irq(unsigned gpio) +{ + /* GPIO can never have been requested or set as input */ + WARN_ON(1); + return -EINVAL; +} + +static inline int irq_to_gpio(unsigned irq) +{ + /* irq can never have been returned from gpio_to_irq() */ + WARN_ON(1); + return -EINVAL; +} + +#endif + +#endif /* __LINUX_GPIO_H */ -- GitLab From fb3a0fb6fd3e997b61f1b121e980aeea88fa4529 Mon Sep 17 00:00:00 2001 From: Paul Menage Date: Tue, 4 Mar 2008 14:28:28 -0800 Subject: [PATCH 415/923] Control Groups: add Paul Menage as maintainer Control Groups: Add Paul Menage as maintainer Signed-off-by: Paul Menage Cc: Balbir Singh Cc: KAMEZAWA Hiroyuki Cc: YAMAMOTO Takashi Cc: Hugh Dickins Cc: Pavel Emelyanov Cc: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index a0f78e76432..d34775e4038 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1138,6 +1138,12 @@ L: accessrunner-general@lists.sourceforge.net W: http://accessrunner.sourceforge.net/ S: Maintained +CONTROL GROUPS (CGROUPS) +P: Paul Menage +M: menage@google.com +L: containers@lists.linux-foundation.org +S: Maintained + CORETEMP HARDWARE MONITORING DRIVER P: Rudolf Marek M: r.marek@assembler.cz -- GitLab From 938a9204e0df070bfbaac71f6403cebed76763ad Mon Sep 17 00:00:00 2001 From: "akpm@linux-foundation.org" Date: Tue, 4 Mar 2008 14:28:29 -0800 Subject: [PATCH 416/923] Add memory resource controller maintainers Signed-off-by: Balbir Singh Signed-off-by: Pavel Emelyanov Cc: Paul Menage Cc: KAMEZAWA Hiroyuki Cc: YAMAMOTO Takashi Cc: Hugh Dickins Cc: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index d34775e4038..558636e3a95 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2639,6 +2639,17 @@ L: linux-kernel@vger.kernel.org W: http://www.linux-mm.org S: Maintained +MEMORY RESOURCE CONTROLLER +P: Balbir Singh +M: balbir@linux.vnet.ibm.com +P: Pavel Emelyanov +M: xemul@openvz.org +P: KAMEZAWA Hiroyuki +M: kamezawa.hiroyu@jp.fujitsu.com +L: linux-mm@kvack.org +L: linux-kernel@vger.kernel.org +S: Maintained + MEI MN10300/AM33 PORT P: David Howells M: dhowells@redhat.com -- GitLab From d31472b6d4f799a68d877f69b2f843eec5875472 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 4 Mar 2008 14:28:30 -0800 Subject: [PATCH 417/923] core dump: user_regset writeback This makes the user_regset-based core dump code call user_regset writeback hooks when available. This is necessary groundwork to allow IA64 to set CORE_DUMP_USE_REGSET. Cc: Shaohua Li Signed-off-by: Roland McGrath Cc: "Luck, Tony" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/binfmt_elf.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 41a958a7585..5e1a4fb5cac 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -1424,6 +1424,18 @@ struct elf_note_info { int thread_notes; }; +/* + * When a regset has a writeback hook, we call it on each thread before + * dumping user memory. On register window machines, this makes sure the + * user memory backing the register data is up to date before we read it. + */ +static void do_thread_regset_writeback(struct task_struct *task, + const struct user_regset *regset) +{ + if (regset->writeback) + regset->writeback(task, regset, 1); +} + static int fill_thread_core_info(struct elf_thread_core_info *t, const struct user_regset_view *view, long signr, size_t *total) @@ -1445,6 +1457,8 @@ static int fill_thread_core_info(struct elf_thread_core_info *t, sizeof(t->prstatus), &t->prstatus); *total += notesize(&t->notes[0]); + do_thread_regset_writeback(t->task, &view->regsets[0]); + /* * Each other regset might generate a note too. For each regset * that has no core_note_type or is inactive, we leave t->notes[i] @@ -1452,6 +1466,7 @@ static int fill_thread_core_info(struct elf_thread_core_info *t, */ for (i = 1; i < view->n; ++i) { const struct user_regset *regset = &view->regsets[i]; + do_thread_regset_writeback(t->task, regset); if (regset->core_note_type && (!regset->active || regset->active(t->task, regset))) { int ret; -- GitLab From d9d4fcfe515d7cece1b26decd75f5d41544a287b Mon Sep 17 00:00:00 2001 From: Alex Riesen Date: Tue, 4 Mar 2008 14:28:31 -0800 Subject: [PATCH 418/923] Fix "Malformed early option 'loglevel'" Keith Mannthey said: The parameter hotadd_percent is setup right but there is a "Malformed early option 'numa'" message. Rusty Russell said: This happens when the function registered with early_param() returns non-zero. __setup() functions return 1 if OK, module_param() and early_param() return 0 or a -ve error code. For instance: Linux version 2.6.25-rc3-t (raa@steel) (gcc version 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)) #22 SMP PREEMPT Tue Feb 26 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 00000000000a0000 (usable) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000003fff0000 (usable) BIOS-e820: 000000003fff0000 - 000000003fff3000 (ACPI NVS) BIOS-e820: 000000003fff3000 - 0000000040000000 (ACPI data) BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved) Malformed early option 'loglevel' 127MB HIGHMEM available. 896MB LOWMEM available. Command line: BOOT_IMAGE=2.6.25-t ro root=809 ro console=ttyS0,57600n8 console=tty0 loglevel=5 Acked-by: Yinghai Lu Cc: Rusty Russell Cc: Keith Mannthey Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- init/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/init/main.c b/init/main.c index 8b1982082ad..fbb0167c6b8 100644 --- a/init/main.c +++ b/init/main.c @@ -254,7 +254,7 @@ early_param("quiet", quiet_kernel); static int __init loglevel(char *str) { get_option(&str, &console_loglevel); - return 1; + return 0; } early_param("loglevel", loglevel); -- GitLab From 10ed273f5016c582413dfbc468dd084957d847e1 Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Tue, 4 Mar 2008 14:28:32 -0800 Subject: [PATCH 419/923] zlc_setup(): handle jiffies wraparound jiffies subtraction may cause an overflow problem. It should be using time_after(). [akpm@linux-foundation.org: include jiffies.h] Signed-off-by: KOSAKI Motohiro Cc: Lee Schermerhorn Cc: Paul Jackson Cc: Mel Gorman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/page_alloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8896e874a67..e76cf94725c 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -1276,7 +1277,7 @@ static nodemask_t *zlc_setup(struct zonelist *zonelist, int alloc_flags) if (!zlc) return NULL; - if (jiffies - zlc->last_full_zap > 1 * HZ) { + if (time_after(jiffies, zlc->last_full_zap + HZ)) { bitmap_zero(zlc->fullzones, MAX_ZONES_PER_ZONELIST); zlc->last_full_zap = jiffies; } -- GitLab From e3892296de632e3f9299d9fabe0c746740004891 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 4 Mar 2008 14:28:33 -0800 Subject: [PATCH 420/923] vfs: fix NULL pointer dereference in fsync_buffers_list() Fix NULL pointer dereference in fsync_buffers_list() introduced by recent fix of races in private_list handling. Since bh->b_assoc_map has been cleared in __remove_assoc_queue() we should really use original value stored in the 'mapping' variable. Signed-off-by: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/buffer.c b/fs/buffer.c index 897cd7477b3..ddfdd2c80bf 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -835,7 +835,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list) smp_mb(); if (buffer_dirty(bh)) { list_add(&bh->b_assoc_buffers, - &bh->b_assoc_map->private_list); + &mapping->private_list); bh->b_assoc_map = mapping; } spin_unlock(lock); -- GitLab From be852795e1c8d3829ddf3cb1ce806113611fa555 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 4 Mar 2008 14:28:35 -0800 Subject: [PATCH 421/923] alloc_percpu() fails to allocate percpu data Some oprofile results obtained while using tbench on a 2x2 cpu machine were very surprising. For example, loopback_xmit() function was using high number of cpu cycles to perform the statistic updates, supposed to be real cheap since they use percpu data pcpu_lstats = netdev_priv(dev); lb_stats = per_cpu_ptr(pcpu_lstats, smp_processor_id()); lb_stats->packets++; /* HERE : serious contention */ lb_stats->bytes += skb->len; struct pcpu_lstats is a small structure containing two longs. It appears that on my 32bits platform, alloc_percpu(8) allocates a single cache line, instead of giving to each cpu a separate cache line. Using the following patch gave me impressive boost in various benchmarks ( 6 % in tbench) (all percpu_counters hit this bug too) Long term fix (ie >= 2.6.26) would be to let each CPU allocate their own block of memory, so that we dont need to roudup sizes to L1_CACHE_BYTES, or merging the SGI stuff of course... Note : SLUB vs SLAB is important here to *show* the improvement, since they dont have the same minimum allocation sizes (8 bytes vs 32 bytes). This could very well explain regressions some guys reported when they switched to SLUB. Signed-off-by: Eric Dumazet Acked-by: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/allocpercpu.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/mm/allocpercpu.c b/mm/allocpercpu.c index 7e58322b713..b0012e27fea 100644 --- a/mm/allocpercpu.c +++ b/mm/allocpercpu.c @@ -6,6 +6,10 @@ #include #include +#ifndef cache_line_size +#define cache_line_size() L1_CACHE_BYTES +#endif + /** * percpu_depopulate - depopulate per-cpu data for given cpu * @__pdata: per-cpu data to depopulate @@ -52,6 +56,11 @@ void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, int cpu) struct percpu_data *pdata = __percpu_disguise(__pdata); int node = cpu_to_node(cpu); + /* + * We should make sure each CPU gets private memory. + */ + size = roundup(size, cache_line_size()); + BUG_ON(pdata->ptrs[cpu]); if (node_online(node)) pdata->ptrs[cpu] = kmalloc_node(size, gfp|__GFP_ZERO, node); @@ -98,7 +107,11 @@ EXPORT_SYMBOL_GPL(__percpu_populate_mask); */ void *__percpu_alloc_mask(size_t size, gfp_t gfp, cpumask_t *mask) { - void *pdata = kzalloc(nr_cpu_ids * sizeof(void *), gfp); + /* + * We allocate whole cache lines to avoid false sharing + */ + size_t sz = roundup(nr_cpu_ids * sizeof(void *), cache_line_size()); + void *pdata = kzalloc(sz, gfp); void *__pdata = __percpu_disguise(pdata); if (unlikely(!pdata)) -- GitLab From 8182ec49a73729334f5a6c65a607ba7009ebd6d6 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Tue, 4 Mar 2008 14:28:36 -0800 Subject: [PATCH 422/923] VT notifier fix for VT switch VT notifier callbacks need to be aware of console switches. This is already partially done from console_callback(), but at that time fg_console, cursor positions, etc. are not yet updated and hence screen readers fetch the old values. This adds an update notify after all of the values are updated in redraw_screen(vc, 1). Signed-off-by: Samuel Thibault Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/vt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/vt.c b/drivers/char/vt.c index 367be917506..9b58b894f82 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -702,6 +702,7 @@ void redraw_screen(struct vc_data *vc, int is_switch) if (is_switch) { set_leds(); compute_shiftstate(); + notify_update(vc); } } -- GitLab From 9edddaa200df18e08fe0cf21036e8ae467b1363c Mon Sep 17 00:00:00 2001 From: Ananth N Mavinakayanahalli Date: Tue, 4 Mar 2008 14:28:37 -0800 Subject: [PATCH 423/923] Kprobes: indicate kretprobe support in Kconfig Add CONFIG_HAVE_KRETPROBES to the arch//Kconfig file for relevant architectures with kprobes support. This facilitates easy handling of in-kernel modules (like samples/kprobes/kretprobe_example.c) that depend on kretprobes being present in the kernel. Thanks to Sam Ravnborg for helping make the patch more lean. Per Mathieu's suggestion, added CONFIG_KRETPROBES and fixed up dependencies. Signed-off-by: Ananth N Mavinakayanahalli Acked-by: Mathieu Desnoyers Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/Kconfig | 7 +++++++ arch/arm/Kconfig | 1 + arch/ia64/Kconfig | 1 + arch/powerpc/Kconfig | 1 + arch/s390/Kconfig | 1 + arch/sparc64/Kconfig | 1 + arch/x86/Kconfig | 1 + include/asm-arm/kprobes.h | 1 - include/asm-ia64/kprobes.h | 1 - include/asm-powerpc/kprobes.h | 1 - include/asm-s390/kprobes.h | 1 - include/asm-sparc64/kprobes.h | 2 -- include/asm-x86/kprobes.h | 1 - include/linux/kprobes.h | 6 +++--- kernel/kprobes.c | 9 +++------ 15 files changed, 19 insertions(+), 16 deletions(-) diff --git a/arch/Kconfig b/arch/Kconfig index 3d72dc3fc8f..694c9af520b 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -27,5 +27,12 @@ config KPROBES for kernel debugging, non-intrusive instrumentation and testing. If in doubt, say "N". +config KRETPROBES + def_bool y + depends on KPROBES && HAVE_KRETPROBES + config HAVE_KPROBES def_bool n + +config HAVE_KRETPROBES + def_bool n diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 16b82e1272b..955fc53c1c0 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -12,6 +12,7 @@ config ARM select SYS_SUPPORTS_APM_EMULATION select HAVE_OPROFILE select HAVE_KPROBES if (!XIP_KERNEL) + select HAVE_KRETPROBES if (HAVE_KPROBES) help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index dff9edfc746..56762d3c2a6 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -18,6 +18,7 @@ config IA64 select HAVE_IDE select HAVE_OPROFILE select HAVE_KPROBES + select HAVE_KRETPROBES default y help The Itanium Processor Family is Intel's 64-bit successor to diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 5b8d8382b76..1189d8d6170 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -90,6 +90,7 @@ config PPC select HAVE_IDE select HAVE_OPROFILE select HAVE_KPROBES + select HAVE_KRETPROBES config EARLY_PRINTK bool diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index b21444b681b..9892827b617 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -61,6 +61,7 @@ config S390 def_bool y select HAVE_OPROFILE select HAVE_KPROBES + select HAVE_KRETPROBES source "init/Kconfig" diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index 3af378ddb6a..463d1be32c9 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -10,6 +10,7 @@ config SPARC default y select HAVE_OPROFILE select HAVE_KPROBES + select HAVE_KRETPROBES config SPARC64 bool diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 53800b80a20..f41c9538ca3 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -21,6 +21,7 @@ config X86 select HAVE_IDE select HAVE_OPROFILE select HAVE_KPROBES + select HAVE_KRETPROBES select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64) diff --git a/include/asm-arm/kprobes.h b/include/asm-arm/kprobes.h index 4e7bd32288a..c042194d3ab 100644 --- a/include/asm-arm/kprobes.h +++ b/include/asm-arm/kprobes.h @@ -20,7 +20,6 @@ #include #include -#define ARCH_SUPPORTS_KRETPROBES #define __ARCH_WANT_KPROBES_INSN_SLOT #define MAX_INSN_SIZE 2 #define MAX_STACK_SIZE 64 /* 32 would probably be OK */ diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index a93ce9ef07f..adbaba14eb0 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -82,7 +82,6 @@ struct kprobe_ctlblk { struct prev_kprobe prev_kprobe[ARCH_PREV_KPROBE_SZ]; }; -#define ARCH_SUPPORTS_KRETPROBES #define kretprobe_blacklist_size 0 #define SLOT0_OPCODE_SHIFT (37) diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h index afabad230db..d0e7701fa1f 100644 --- a/include/asm-powerpc/kprobes.h +++ b/include/asm-powerpc/kprobes.h @@ -80,7 +80,6 @@ typedef unsigned int kprobe_opcode_t; #define is_trap(instr) (IS_TW(instr) || IS_TWI(instr)) #endif -#define ARCH_SUPPORTS_KRETPROBES #define flush_insn_slot(p) do { } while (0) #define kretprobe_blacklist_size 0 diff --git a/include/asm-s390/kprobes.h b/include/asm-s390/kprobes.h index 948db3d0d05..330f68caffe 100644 --- a/include/asm-s390/kprobes.h +++ b/include/asm-s390/kprobes.h @@ -46,7 +46,6 @@ typedef u16 kprobe_opcode_t; ? (MAX_STACK_SIZE) \ : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) -#define ARCH_SUPPORTS_KRETPROBES #define kretprobe_blacklist_size 0 #define KPROBE_SWAP_INST 0x10 diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h index 7237dd87663..5879d71afda 100644 --- a/include/asm-sparc64/kprobes.h +++ b/include/asm-sparc64/kprobes.h @@ -14,8 +14,6 @@ typedef u32 kprobe_opcode_t; #define arch_remove_kprobe(p) do {} while (0) -#define ARCH_SUPPORTS_KRETPROBES - #define flush_insn_slot(p) \ do { flushi(&(p)->ainsn.insn[0]); \ flushi(&(p)->ainsn.insn[1]); \ diff --git a/include/asm-x86/kprobes.h b/include/asm-x86/kprobes.h index 143476a3cb5..61ad7b5d142 100644 --- a/include/asm-x86/kprobes.h +++ b/include/asm-x86/kprobes.h @@ -42,7 +42,6 @@ typedef u8 kprobe_opcode_t; : (((unsigned long)current_thread_info()) + THREAD_SIZE \ - (unsigned long)(ADDR))) -#define ARCH_SUPPORTS_KRETPROBES #define flush_insn_slot(p) do { } while (0) extern const int kretprobe_blacklist_size; diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 4a6ce82ba03..0f28486f636 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -125,11 +125,11 @@ struct jprobe { DECLARE_PER_CPU(struct kprobe *, current_kprobe); DECLARE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); -#ifdef ARCH_SUPPORTS_KRETPROBES +#ifdef CONFIG_KRETPROBES extern void arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs); extern int arch_trampoline_kprobe(struct kprobe *p); -#else /* ARCH_SUPPORTS_KRETPROBES */ +#else /* CONFIG_KRETPROBES */ static inline void arch_prepare_kretprobe(struct kretprobe *rp, struct pt_regs *regs) { @@ -138,7 +138,7 @@ static inline int arch_trampoline_kprobe(struct kprobe *p) { return 0; } -#endif /* ARCH_SUPPORTS_KRETPROBES */ +#endif /* CONFIG_KRETPROBES */ /* * Function-return probe - * Note: diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 7a86e643233..e6a61dcbc57 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -678,8 +678,7 @@ void __kprobes unregister_jprobe(struct jprobe *jp) unregister_kprobe(&jp->kp); } -#ifdef ARCH_SUPPORTS_KRETPROBES - +#ifdef CONFIG_KRETPROBES /* * This kprobe pre_handler is registered with every kretprobe. When probe * hits it will set up the return probe. @@ -769,8 +768,7 @@ int __kprobes register_kretprobe(struct kretprobe *rp) return ret; } -#else /* ARCH_SUPPORTS_KRETPROBES */ - +#else /* CONFIG_KRETPROBES */ int __kprobes register_kretprobe(struct kretprobe *rp) { return -ENOSYS; @@ -781,8 +779,7 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p, { return 0; } - -#endif /* ARCH_SUPPORTS_KRETPROBES */ +#endif /* CONFIG_KRETPROBES */ void __kprobes unregister_kretprobe(struct kretprobe *rp) { -- GitLab From 804defea1c020d5c52985685e56986f1a399acde Mon Sep 17 00:00:00 2001 From: Ananth N Mavinakayanahalli Date: Tue, 4 Mar 2008 14:28:38 -0800 Subject: [PATCH 424/923] Kprobes: move kprobe examples to samples/ Move kprobes examples from Documentation/kprobes.txt to under samples/. Patch originally by Randy Dunlap. o Updated the patch to apply on 2.6.25-rc3 o Modified examples code to build on multiple architectures. Currently, the kprobe and jprobe examples code works for x86 and powerpc o Cleaned up unneeded #includes o Cleaned up Kconfig per Sam Ravnborg's suggestions to fix build break on archs that don't have kretprobes o Implemented suggestions by Mathieu Desnoyers on CONFIG_KRETPROBES o Included Andrew Morton's cleanup based on x86-git o Modified kretprobe_example to act as a arch-agnostic module to determine routine execution times: Use 'modprobe kretprobe_example func=' to determine execution time of func_name in nanoseconds. Signed-off-by: Randy Dunlap Signed-off-by: Ananth N Mavinakayanahalli Acked-by: Mathieu Desnoyers Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/kprobes.txt | 243 +--------------------------- samples/Kconfig | 11 ++ samples/Makefile | 2 +- samples/kprobes/Makefile | 5 + samples/kprobes/jprobe_example.c | 68 ++++++++ samples/kprobes/kprobe_example.c | 91 +++++++++++ samples/kprobes/kretprobe_example.c | 106 ++++++++++++ 7 files changed, 287 insertions(+), 239 deletions(-) create mode 100644 samples/kprobes/Makefile create mode 100644 samples/kprobes/jprobe_example.c create mode 100644 samples/kprobes/kprobe_example.c create mode 100644 samples/kprobes/kretprobe_example.c diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt index 83f515c2905..be89f393274 100644 --- a/Documentation/kprobes.txt +++ b/Documentation/kprobes.txt @@ -192,7 +192,8 @@ code mapping. The Kprobes API includes a "register" function and an "unregister" function for each type of probe. Here are terse, mini-man-page specifications for these functions and the associated probe handlers -that you'll write. See the latter half of this document for examples. +that you'll write. See the files in the samples/kprobes/ sub-directory +for examples. 4.1 register_kprobe @@ -420,249 +421,15 @@ e. Watchpoint probes (which fire on data references). 8. Kprobes Example -Here's a sample kernel module showing the use of kprobes to dump a -stack trace and selected i386 registers when do_fork() is called. ------ cut here ----- -/*kprobe_example.c*/ -#include -#include -#include -#include - -/*For each probe you need to allocate a kprobe structure*/ -static struct kprobe kp; - -/*kprobe pre_handler: called just before the probed instruction is executed*/ -int handler_pre(struct kprobe *p, struct pt_regs *regs) -{ - printk("pre_handler: p->addr=0x%p, eip=%lx, eflags=0x%lx\n", - p->addr, regs->eip, regs->eflags); - dump_stack(); - return 0; -} - -/*kprobe post_handler: called after the probed instruction is executed*/ -void handler_post(struct kprobe *p, struct pt_regs *regs, unsigned long flags) -{ - printk("post_handler: p->addr=0x%p, eflags=0x%lx\n", - p->addr, regs->eflags); -} - -/* fault_handler: this is called if an exception is generated for any - * instruction within the pre- or post-handler, or when Kprobes - * single-steps the probed instruction. - */ -int handler_fault(struct kprobe *p, struct pt_regs *regs, int trapnr) -{ - printk("fault_handler: p->addr=0x%p, trap #%dn", - p->addr, trapnr); - /* Return 0 because we don't handle the fault. */ - return 0; -} - -static int __init kprobe_init(void) -{ - int ret; - kp.pre_handler = handler_pre; - kp.post_handler = handler_post; - kp.fault_handler = handler_fault; - kp.symbol_name = "do_fork"; - - ret = register_kprobe(&kp); - if (ret < 0) { - printk("register_kprobe failed, returned %d\n", ret); - return ret; - } - printk("kprobe registered\n"); - return 0; -} - -static void __exit kprobe_exit(void) -{ - unregister_kprobe(&kp); - printk("kprobe unregistered\n"); -} - -module_init(kprobe_init) -module_exit(kprobe_exit) -MODULE_LICENSE("GPL"); ------ cut here ----- - -You can build the kernel module, kprobe-example.ko, using the following -Makefile: ------ cut here ----- -obj-m := kprobe-example.o -KDIR := /lib/modules/$(shell uname -r)/build -PWD := $(shell pwd) -default: - $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules -clean: - rm -f *.mod.c *.ko *.o ------ cut here ----- - -$ make -$ su - -... -# insmod kprobe-example.ko - -You will see the trace data in /var/log/messages and on the console -whenever do_fork() is invoked to create a new process. +See samples/kprobes/kprobe_example.c 9. Jprobes Example -Here's a sample kernel module showing the use of jprobes to dump -the arguments of do_fork(). ------ cut here ----- -/*jprobe-example.c */ -#include -#include -#include -#include -#include - -/* - * Jumper probe for do_fork. - * Mirror principle enables access to arguments of the probed routine - * from the probe handler. - */ - -/* Proxy routine having the same arguments as actual do_fork() routine */ -long jdo_fork(unsigned long clone_flags, unsigned long stack_start, - struct pt_regs *regs, unsigned long stack_size, - int __user * parent_tidptr, int __user * child_tidptr) -{ - printk("jprobe: clone_flags=0x%lx, stack_size=0x%lx, regs=0x%p\n", - clone_flags, stack_size, regs); - /* Always end with a call to jprobe_return(). */ - jprobe_return(); - /*NOTREACHED*/ - return 0; -} - -static struct jprobe my_jprobe = { - .entry = jdo_fork -}; - -static int __init jprobe_init(void) -{ - int ret; - my_jprobe.kp.symbol_name = "do_fork"; - - if ((ret = register_jprobe(&my_jprobe)) <0) { - printk("register_jprobe failed, returned %d\n", ret); - return -1; - } - printk("Planted jprobe at %p, handler addr %p\n", - my_jprobe.kp.addr, my_jprobe.entry); - return 0; -} - -static void __exit jprobe_exit(void) -{ - unregister_jprobe(&my_jprobe); - printk("jprobe unregistered\n"); -} - -module_init(jprobe_init) -module_exit(jprobe_exit) -MODULE_LICENSE("GPL"); ------ cut here ----- - -Build and insert the kernel module as shown in the above kprobe -example. You will see the trace data in /var/log/messages and on -the console whenever do_fork() is invoked to create a new process. -(Some messages may be suppressed if syslogd is configured to -eliminate duplicate messages.) +See samples/kprobes/jprobe_example.c 10. Kretprobes Example -Here's a sample kernel module showing the use of return probes to -report failed calls to sys_open(). ------ cut here ----- -/*kretprobe-example.c*/ -#include -#include -#include -#include - -/* per-instance private data */ -struct my_data { - ktime_t entry_stamp; -}; - -static const char *probed_func = "sys_open"; - -/* Timestamp function entry. */ -static int entry_handler(struct kretprobe_instance *ri, struct pt_regs *regs) -{ - struct my_data *data; - - if(!current->mm) - return 1; /* skip kernel threads */ - - data = (struct my_data *)ri->data; - data->entry_stamp = ktime_get(); - return 0; -} - -/* If the probed function failed, log the return value and duration. - * Duration may turn out to be zero consistently, depending upon the - * granularity of time accounting on the platform. */ -static int return_handler(struct kretprobe_instance *ri, struct pt_regs *regs) -{ - int retval = regs_return_value(regs); - struct my_data *data = (struct my_data *)ri->data; - s64 delta; - ktime_t now; - - if (retval < 0) { - now = ktime_get(); - delta = ktime_to_ns(ktime_sub(now, data->entry_stamp)); - printk("%s: return val = %d (duration = %lld ns)\n", - probed_func, retval, delta); - } - return 0; -} - -static struct kretprobe my_kretprobe = { - .handler = return_handler, - .entry_handler = entry_handler, - .data_size = sizeof(struct my_data), - .maxactive = 20, /* probe up to 20 instances concurrently */ -}; - -static int __init kretprobe_init(void) -{ - int ret; - my_kretprobe.kp.symbol_name = (char *)probed_func; - - if ((ret = register_kretprobe(&my_kretprobe)) < 0) { - printk("register_kretprobe failed, returned %d\n", ret); - return -1; - } - printk("Kretprobe active on %s\n", my_kretprobe.kp.symbol_name); - return 0; -} - -static void __exit kretprobe_exit(void) -{ - unregister_kretprobe(&my_kretprobe); - printk("kretprobe unregistered\n"); - /* nmissed > 0 suggests that maxactive was set too low. */ - printk("Missed probing %d instances of %s\n", - my_kretprobe.nmissed, probed_func); -} - -module_init(kretprobe_init) -module_exit(kretprobe_exit) -MODULE_LICENSE("GPL"); ------ cut here ----- - -Build and insert the kernel module as shown in the above kprobe -example. You will see the trace data in /var/log/messages and on the -console whenever sys_open() returns a negative value. (Some messages -may be suppressed if syslogd is configured to eliminate duplicate -messages.) +See samples/kprobes/kretprobe_example.c For additional information on Kprobes, refer to the following URLs: http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe diff --git a/samples/Kconfig b/samples/Kconfig index 74d97cc2478..e1fb471cc50 100644 --- a/samples/Kconfig +++ b/samples/Kconfig @@ -22,5 +22,16 @@ config SAMPLE_KOBJECT If in doubt, say "N" here. +config SAMPLE_KPROBES + tristate "Build kprobes examples -- loadable modules only" + depends on KPROBES && m + help + This build several kprobes example modules. + +config SAMPLE_KRETPROBES + tristate "Build kretprobes example -- loadable modules only" + default m + depends on SAMPLE_KPROBES && KRETPROBES + endif # SAMPLES diff --git a/samples/Makefile b/samples/Makefile index 8652d0f268a..2e02575f779 100644 --- a/samples/Makefile +++ b/samples/Makefile @@ -1,3 +1,3 @@ # Makefile for Linux samples code -obj-$(CONFIG_SAMPLES) += markers/ kobject/ +obj-$(CONFIG_SAMPLES) += markers/ kobject/ kprobes/ diff --git a/samples/kprobes/Makefile b/samples/kprobes/Makefile new file mode 100644 index 00000000000..68739bc4fc6 --- /dev/null +++ b/samples/kprobes/Makefile @@ -0,0 +1,5 @@ +# builds the kprobes example kernel modules; +# then to use one (as root): insmod + +obj-$(CONFIG_SAMPLE_KPROBES) += kprobe_example.o jprobe_example.o +obj-$(CONFIG_SAMPLE_KRETPROBES) += kretprobe_example.o diff --git a/samples/kprobes/jprobe_example.c b/samples/kprobes/jprobe_example.c new file mode 100644 index 00000000000..b7541355b92 --- /dev/null +++ b/samples/kprobes/jprobe_example.c @@ -0,0 +1,68 @@ +/* + * Here's a sample kernel module showing the use of jprobes to dump + * the arguments of do_fork(). + * + * For more information on theory of operation of jprobes, see + * Documentation/kprobes.txt + * + * Build and insert the kernel module as done in the kprobe example. + * You will see the trace data in /var/log/messages and on the + * console whenever do_fork() is invoked to create a new process. + * (Some messages may be suppressed if syslogd is configured to + * eliminate duplicate messages.) + */ + +#include +#include +#include + +/* + * Jumper probe for do_fork. + * Mirror principle enables access to arguments of the probed routine + * from the probe handler. + */ + +/* Proxy routine having the same arguments as actual do_fork() routine */ +static long jdo_fork(unsigned long clone_flags, unsigned long stack_start, + struct pt_regs *regs, unsigned long stack_size, + int __user *parent_tidptr, int __user *child_tidptr) +{ + printk(KERN_INFO "jprobe: clone_flags = 0x%lx, stack_size = 0x%lx," + " regs = 0x%p\n", + clone_flags, stack_size, regs); + + /* Always end with a call to jprobe_return(). */ + jprobe_return(); + return 0; +} + +static struct jprobe my_jprobe = { + .entry = jdo_fork, + .kp = { + .symbol_name = "do_fork", + }, +}; + +static int __init jprobe_init(void) +{ + int ret; + + ret = register_jprobe(&my_jprobe); + if (ret < 0) { + printk(KERN_INFO "register_jprobe failed, returned %d\n", ret); + return -1; + } + printk(KERN_INFO "Planted jprobe at %p, handler addr %p\n", + my_jprobe.kp.addr, my_jprobe.entry); + return 0; +} + +static void __exit jprobe_exit(void) +{ + unregister_jprobe(&my_jprobe); + printk(KERN_INFO "jprobe at %p unregistered\n", my_jprobe.kp.addr); +} + +module_init(jprobe_init) +module_exit(jprobe_exit) +MODULE_LICENSE("GPL"); diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c new file mode 100644 index 00000000000..a681998a871 --- /dev/null +++ b/samples/kprobes/kprobe_example.c @@ -0,0 +1,91 @@ +/* + * NOTE: This example is works on x86 and powerpc. + * Here's a sample kernel module showing the use of kprobes to dump a + * stack trace and selected registers when do_fork() is called. + * + * For more information on theory of operation of kprobes, see + * Documentation/kprobes.txt + * + * You will see the trace data in /var/log/messages and on the console + * whenever do_fork() is invoked to create a new process. + */ + +#include +#include +#include + +/* For each probe you need to allocate a kprobe structure */ +static struct kprobe kp = { + .symbol_name = "do_fork", +}; + +/* kprobe pre_handler: called just before the probed instruction is executed */ +static int handler_pre(struct kprobe *p, struct pt_regs *regs) +{ +#ifdef CONFIG_X86 + printk(KERN_INFO "pre_handler: p->addr = 0x%p, ip = %lx," + " flags = 0x%lx\n", + p->addr, regs->ip, regs->flags); +#endif +#ifdef CONFIG_PPC + printk(KERN_INFO "pre_handler: p->addr = 0x%p, nip = 0x%lx," + " msr = 0x%lx\n", + p->addr, regs->nip, regs->msr); +#endif + + /* A dump_stack() here will give a stack backtrace */ + return 0; +} + +/* kprobe post_handler: called after the probed instruction is executed */ +static void handler_post(struct kprobe *p, struct pt_regs *regs, + unsigned long flags) +{ +#ifdef CONFIG_X86 + printk(KERN_INFO "post_handler: p->addr = 0x%p, flags = 0x%lx\n", + p->addr, regs->flags); +#endif +#ifdef CONFIG_PPC + printk(KERN_INFO "post_handler: p->addr = 0x%p, msr = 0x%lx\n", + p->addr, regs->msr); +#endif +} + +/* + * fault_handler: this is called if an exception is generated for any + * instruction within the pre- or post-handler, or when Kprobes + * single-steps the probed instruction. + */ +static int handler_fault(struct kprobe *p, struct pt_regs *regs, int trapnr) +{ + printk(KERN_INFO "fault_handler: p->addr = 0x%p, trap #%dn", + p->addr, trapnr); + /* Return 0 because we don't handle the fault. */ + return 0; +} + +static int __init kprobe_init(void) +{ + int ret; + kp.pre_handler = handler_pre; + kp.post_handler = handler_post; + kp.fault_handler = handler_fault; + + ret = register_kprobe(&kp); + if (ret < 0) { + printk(KERN_INFO "register_kprobe failed, returned %d\n", ret); + return ret; + } + printk(KERN_INFO "Planted kprobe at %p\n", kp.addr); + return 0; +} + +static void __exit kprobe_exit(void) +{ + unregister_kprobe(&kp); + printk(KERN_INFO "kprobe at %p unregistered\n", kp.addr); +} + +module_init(kprobe_init) +module_exit(kprobe_exit) +MODULE_LICENSE("GPL"); diff --git a/samples/kprobes/kretprobe_example.c b/samples/kprobes/kretprobe_example.c new file mode 100644 index 00000000000..4e764b317d6 --- /dev/null +++ b/samples/kprobes/kretprobe_example.c @@ -0,0 +1,106 @@ +/* + * kretprobe_example.c + * + * Here's a sample kernel module showing the use of return probes to + * report the return value and total time taken for probed function + * to run. + * + * usage: insmod kretprobe_example.ko func= + * + * If no func_name is specified, do_fork is instrumented + * + * For more information on theory of operation of kretprobes, see + * Documentation/kprobes.txt + * + * Build and insert the kernel module as done in the kprobe example. + * You will see the trace data in /var/log/messages and on the console + * whenever the probed function returns. (Some messages may be suppressed + * if syslogd is configured to eliminate duplicate messages.) + */ + +#include +#include +#include +#include +#include + +static char func_name[NAME_MAX] = "do_fork"; +module_param_string(func, func_name, NAME_MAX, S_IRUGO); +MODULE_PARM_DESC(func, "Function to kretprobe; this module will report the" + " function's execution time"); + +/* per-instance private data */ +struct my_data { + ktime_t entry_stamp; +}; + +/* Here we use the entry_hanlder to timestamp function entry */ +static int entry_handler(struct kretprobe_instance *ri, struct pt_regs *regs) +{ + struct my_data *data; + + if (!current->mm) + return 1; /* Skip kernel threads */ + + data = (struct my_data *)ri->data; + data->entry_stamp = ktime_get(); + return 0; +} + +/* + * Return-probe handler: Log the return value and duration. Duration may turn + * out to be zero consistently, depending upon the granularity of time + * accounting on the platform. + */ +static int ret_handler(struct kretprobe_instance *ri, struct pt_regs *regs) +{ + int retval = regs_return_value(regs); + struct my_data *data = (struct my_data *)ri->data; + s64 delta; + ktime_t now; + + now = ktime_get(); + delta = ktime_to_ns(ktime_sub(now, data->entry_stamp)); + printk(KERN_INFO "%s returned %d and took %lld ns to execute\n", + func_name, retval, (long long)delta); + return 0; +} + +static struct kretprobe my_kretprobe = { + .handler = ret_handler, + .entry_handler = entry_handler, + .data_size = sizeof(struct my_data), + /* Probe up to 20 instances concurrently. */ + .maxactive = 20, +}; + +static int __init kretprobe_init(void) +{ + int ret; + + my_kretprobe.kp.symbol_name = func_name; + ret = register_kretprobe(&my_kretprobe); + if (ret < 0) { + printk(KERN_INFO "register_kretprobe failed, returned %d\n", + ret); + return -1; + } + printk(KERN_INFO "Planted return probe at %s: %p\n", + my_kretprobe.kp.symbol_name, my_kretprobe.kp.addr); + return 0; +} + +static void __exit kretprobe_exit(void) +{ + unregister_kretprobe(&my_kretprobe); + printk(KERN_INFO "kretprobe at %p unregistered\n", + my_kretprobe.kp.addr); + + /* nmissed > 0 suggests that maxactive was set too low. */ + printk(KERN_INFO "Missed probing %d instances of %s\n", + my_kretprobe.nmissed, my_kretprobe.kp.symbol_name); +} + +module_init(kretprobe_init) +module_exit(kretprobe_exit) +MODULE_LICENSE("GPL"); -- GitLab From 00f0b8259e48979c37212995d798f3fbd0374690 Mon Sep 17 00:00:00 2001 From: Balbir Singh Date: Tue, 4 Mar 2008 14:28:39 -0800 Subject: [PATCH 425/923] Memory controller: rename to Memory Resource Controller Rename Memory Controller to Memory Resource Controller. Reflect the same changes in the CONFIG definition for the Memory Resource Controller. Group together the config options for Resource Counters and Memory Resource Controller. Signed-off-by: Balbir Singh Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/controllers/memory.txt | 8 ++++++-- include/linux/cgroup_subsys.h | 2 +- include/linux/memcontrol.h | 4 ++-- include/linux/mm_types.h | 4 ++-- init/Kconfig | 30 ++++++++++++++-------------- mm/Makefile | 2 +- mm/oom_kill.c | 2 +- mm/vmscan.c | 4 ++-- 8 files changed, 30 insertions(+), 26 deletions(-) diff --git a/Documentation/controllers/memory.txt b/Documentation/controllers/memory.txt index fba6af45225..866b9cd9a95 100644 --- a/Documentation/controllers/memory.txt +++ b/Documentation/controllers/memory.txt @@ -1,4 +1,8 @@ -Memory Controller +Memory Resource Controller + +NOTE: The Memory Resource Controller has been generically been referred +to as the memory controller in this document. Do not confuse memory controller +used here with the memory controller that is used in hardware. Salient features @@ -152,7 +156,7 @@ The memory controller uses the following hierarchy a. Enable CONFIG_CGROUPS b. Enable CONFIG_RESOURCE_COUNTERS -c. Enable CONFIG_CGROUP_MEM_CONT +c. Enable CONFIG_CGROUP_MEM_RES_CTLR 1. Prepare the cgroups # mkdir -p /cgroups diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h index ac6aad98b60..1ddebfc5256 100644 --- a/include/linux/cgroup_subsys.h +++ b/include/linux/cgroup_subsys.h @@ -37,7 +37,7 @@ SUBSYS(cpuacct) /* */ -#ifdef CONFIG_CGROUP_MEM_CONT +#ifdef CONFIG_CGROUP_MEM_RES_CTLR SUBSYS(mem_cgroup) #endif diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 04075628cb9..a8be8073b9e 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -25,7 +25,7 @@ struct page_cgroup; struct page; struct mm_struct; -#ifdef CONFIG_CGROUP_MEM_CONT +#ifdef CONFIG_CGROUP_MEM_RES_CTLR extern void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p); extern void mm_free_cgroup(struct mm_struct *mm); @@ -72,7 +72,7 @@ extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem, extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem, struct zone *zone, int priority); -#else /* CONFIG_CGROUP_MEM_CONT */ +#else /* CONFIG_CGROUP_MEM_RES_CTLR */ static inline void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p) { diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 34023c65d46..af190ceab97 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -88,7 +88,7 @@ struct page { void *virtual; /* Kernel virtual address (NULL if not kmapped, ie. highmem) */ #endif /* WANT_PAGE_VIRTUAL */ -#ifdef CONFIG_CGROUP_MEM_CONT +#ifdef CONFIG_CGROUP_MEM_RES_CTLR unsigned long page_cgroup; #endif }; @@ -222,7 +222,7 @@ struct mm_struct { /* aio bits */ rwlock_t ioctx_list_lock; struct kioctx *ioctx_list; -#ifdef CONFIG_CGROUP_MEM_CONT +#ifdef CONFIG_CGROUP_MEM_RES_CTLR struct mem_cgroup *mem_cgroup; #endif }; diff --git a/init/Kconfig b/init/Kconfig index f698a5af500..442850b984b 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -366,6 +366,21 @@ config RESOURCE_COUNTERS infrastructure that works with cgroups depends on CGROUPS +config CGROUP_MEM_RES_CTLR + bool "Memory Resource Controller for Control Groups" + depends on CGROUPS && RESOURCE_COUNTERS + help + Provides a memory resource controller that manages both page cache and + RSS memory. + + Note that setting this option increases fixed memory overhead + associated with each page of memory in the system by 4/8 bytes + and also increases cache misses because struct page on many 64bit + systems will not fit into a single cache line anymore. + + Only enable when you're ok with these trade offs and really + sure you need the memory resource controller. + config SYSFS_DEPRECATED bool "Create deprecated sysfs files" depends on SYSFS @@ -387,21 +402,6 @@ config SYSFS_DEPRECATED If you are using a distro that was released in 2006 or later, it should be safe to say N here. -config CGROUP_MEM_CONT - bool "Memory controller for cgroups" - depends on CGROUPS && RESOURCE_COUNTERS - help - Provides a memory controller that manages both page cache and - RSS memory. - - Note that setting this option increases fixed memory overhead - associated with each page of memory in the system by 4/8 bytes - and also increases cache misses because struct page on many 64bit - systems will not fit into a single cache line anymore. - - Only enable when you're ok with these trade offs and really - sure you need the memory controller. - config PROC_PID_CPUSET bool "Include legacy /proc//cpuset file" depends on CPUSETS diff --git a/mm/Makefile b/mm/Makefile index 9f117bab532..a5b0dd93427 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -32,5 +32,5 @@ obj-$(CONFIG_FS_XIP) += filemap_xip.o obj-$(CONFIG_MIGRATION) += migrate.o obj-$(CONFIG_SMP) += allocpercpu.o obj-$(CONFIG_QUICKLIST) += quicklist.o -obj-$(CONFIG_CGROUP_MEM_CONT) += memcontrol.o +obj-$(CONFIG_CGROUP_MEM_RES_CTLR) += memcontrol.o diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 4194b9db010..44b2da11bf4 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -412,7 +412,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order, return oom_kill_task(p); } -#ifdef CONFIG_CGROUP_MEM_CONT +#ifdef CONFIG_CGROUP_MEM_RES_CTLR void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask) { unsigned long points = 0; diff --git a/mm/vmscan.c b/mm/vmscan.c index a26dabd62fe..106ba10e1ac 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -126,7 +126,7 @@ long vm_total_pages; /* The total number of pages which the VM controls */ static LIST_HEAD(shrinker_list); static DECLARE_RWSEM(shrinker_rwsem); -#ifdef CONFIG_CGROUP_MEM_CONT +#ifdef CONFIG_CGROUP_MEM_RES_CTLR #define scan_global_lru(sc) (!(sc)->mem_cgroup) #else #define scan_global_lru(sc) (1) @@ -1427,7 +1427,7 @@ unsigned long try_to_free_pages(struct zone **zones, int order, gfp_t gfp_mask) return do_try_to_free_pages(zones, gfp_mask, &sc); } -#ifdef CONFIG_CGROUP_MEM_CONT +#ifdef CONFIG_CGROUP_MEM_RES_CTLR unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont, gfp_t gfp_mask) -- GitLab From e8ed857c64e3ae62e27606ae58bc7371b5daccb1 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Tue, 4 Mar 2008 14:28:39 -0800 Subject: [PATCH 426/923] tridentfb: resource management fixes in probe function Correct error paths in probe function. The probe function enables mmio mode so it important to disable the mmio mode before exiting the probe function. Otherwise, the console is left in unusable state (garbled fonts at least, lock up at worst). [akpm@linux-foundation.org: cleanups] Signed-off-by: Krzysztof Helt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/tridentfb.c | 65 +++++++++++++++++++++++++++++---------- 1 file changed, 48 insertions(+), 17 deletions(-) diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c index 70fb4ee2b42..919ce75db9e 100644 --- a/drivers/video/tridentfb.c +++ b/drivers/video/tridentfb.c @@ -564,19 +564,46 @@ static inline void write3CE(int reg, unsigned char val) t_outb(val, 0x3CF); } -static inline void enable_mmio(void) +static void enable_mmio(void) { + unsigned char tmp; + /* Goto New Mode */ outb(0x0B, 0x3C4); inb(0x3C5); /* Unprotect registers */ outb(NewMode1, 0x3C4); + tmp = inb(0x3C5); outb(0x80, 0x3C5); /* Enable MMIO */ outb(PCIReg, 0x3D4); outb(inb(0x3D5) | 0x01, 0x3D5); + + t_outb(NewMode1, 0x3C4); + t_outb(tmp, 0x3C5); +} + +static void disable_mmio(void) +{ + unsigned char tmp; + + /* Goto New Mode */ + t_outb(0x0B, 0x3C4); + t_inb(0x3C5); + + /* Unprotect registers */ + t_outb(NewMode1, 0x3C4); + tmp = t_inb(0x3C5); + t_outb(0x80, 0x3C5); + + /* Disable MMIO */ + t_outb(PCIReg, 0x3D4); + t_outb(t_inb(0x3D5) & ~0x01, 0x3D5); + + outb(NewMode1, 0x3C4); + outb(tmp, 0x3C5); } #define crtc_unlock() write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F) @@ -1239,9 +1266,9 @@ static int __devinit trident_pci_probe(struct pci_dev * dev, default_par.io_virt = ioremap_nocache(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); if (!default_par.io_virt) { - release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); debug("ioremap failed\n"); - return -1; + err = -1; + goto out_unmap1; } enable_mmio(); @@ -1252,25 +1279,21 @@ static int __devinit trident_pci_probe(struct pci_dev * dev, if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) { debug("request_mem_region failed!\n"); + disable_mmio(); err = -1; - goto out_unmap; + goto out_unmap1; } fb_info.screen_base = ioremap_nocache(tridentfb_fix.smem_start, tridentfb_fix.smem_len); if (!fb_info.screen_base) { - release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); debug("ioremap failed\n"); err = -1; - goto out_unmap; + goto out_unmap2; } output("%s board found\n", pci_name(dev)); -#if 0 - output("Trident board found : mem = %X, io = %X, mem_v = %X, io_v = %X\n", - tridentfb_fix.smem_start, tridentfb_fix.mmio_start, fb_info.screen_base, default_par.io_virt); -#endif displaytype = get_displaytype(); if (flatpanel) @@ -1288,9 +1311,12 @@ static int __devinit trident_pci_probe(struct pci_dev * dev, if (!fb_find_mode(&default_var, &fb_info, mode, NULL, 0, NULL, bpp)) { err = -EINVAL; - goto out_unmap; + goto out_unmap2; } - fb_alloc_cmap(&fb_info.cmap, 256, 0); + err = fb_alloc_cmap(&fb_info.cmap, 256, 0); + if (err < 0) + goto out_unmap2; + if (defaultaccel && acc) default_var.accel_flags |= FB_ACCELF_TEXT; else @@ -1300,19 +1326,24 @@ static int __devinit trident_pci_probe(struct pci_dev * dev, fb_info.device = &dev->dev; if (register_framebuffer(&fb_info) < 0) { printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n"); + fb_dealloc_cmap(&fb_info.cmap); err = -EINVAL; - goto out_unmap; + goto out_unmap2; } output("fb%d: %s frame buffer device %dx%d-%dbpp\n", fb_info.node, fb_info.fix.id, default_var.xres, default_var.yres, default_var.bits_per_pixel); return 0; -out_unmap: - if (default_par.io_virt) - iounmap(default_par.io_virt); +out_unmap2: if (fb_info.screen_base) iounmap(fb_info.screen_base); + release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); + disable_mmio(); +out_unmap1: + if (default_par.io_virt) + iounmap(default_par.io_virt); + release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); return err; } @@ -1323,7 +1354,7 @@ static void __devexit trident_pci_remove(struct pci_dev *dev) iounmap(par->io_virt); iounmap(fb_info.screen_base); release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); - release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); + release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); } /* List of boards that we are trying to support */ -- GitLab From 735c4fb916e9f83a9350aeb2680d77d01ea75094 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 4 Mar 2008 14:28:40 -0800 Subject: [PATCH 427/923] add noinline_for_stack People are adding `noinline' in various places to prevent excess stack consumption due to gcc inlining. But once this is done, it is quite unobvious why the `noinline' is present in the code. We can comment each and every site, or we can use noinline_for_stack. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/compiler.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/compiler.h b/include/linux/compiler.h index d0e17e1657d..dcae0c8d97e 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -138,6 +138,12 @@ extern void __chk_io_ptr(const volatile void __iomem *); #define noinline #endif +/* + * Rather then using noinline to prevent stack consumption, use + * noinline_for_stack instead. For documentaiton reasons. + */ +#define noinline_for_stack noinline + #ifndef __always_inline #define __always_inline inline #endif -- GitLab From 05680d86d21bdbe56db80c66c24c686590815f1f Mon Sep 17 00:00:00 2001 From: Peter Osterlund Date: Tue, 4 Mar 2008 14:28:41 -0800 Subject: [PATCH 428/923] pktcdvd: reduce stack consumption On my system, pkt_open() consumes 584 bytes because the compiler decides to inline lots of functions that would not normally be part of long call chains. The following patch fixes that problem on my system. Signed-off-by: Peter Osterlund Cc: Nix Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/pktcdvd.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 674cd66dcab..18feb1c7c33 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -849,7 +849,8 @@ static int pkt_flush_cache(struct pktcdvd_device *pd) /* * speed is given as the normal factor, e.g. 4 for 4x */ -static int pkt_set_speed(struct pktcdvd_device *pd, unsigned write_speed, unsigned read_speed) +static noinline_for_stack int pkt_set_speed(struct pktcdvd_device *pd, + unsigned write_speed, unsigned read_speed) { struct packet_command cgc; struct request_sense sense; @@ -1776,7 +1777,8 @@ static int pkt_get_track_info(struct pktcdvd_device *pd, __u16 track, __u8 type, return pkt_generic_packet(pd, &cgc); } -static int pkt_get_last_written(struct pktcdvd_device *pd, long *last_written) +static noinline_for_stack int pkt_get_last_written(struct pktcdvd_device *pd, + long *last_written) { disc_information di; track_information ti; @@ -1813,7 +1815,7 @@ static int pkt_get_last_written(struct pktcdvd_device *pd, long *last_written) /* * write mode select package based on pd->settings */ -static int pkt_set_write_settings(struct pktcdvd_device *pd) +static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd) { struct packet_command cgc; struct request_sense sense; @@ -1972,7 +1974,7 @@ static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di) return 1; } -static int pkt_probe_settings(struct pktcdvd_device *pd) +static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd) { struct packet_command cgc; unsigned char buf[12]; @@ -2071,7 +2073,8 @@ static int pkt_probe_settings(struct pktcdvd_device *pd) /* * enable/disable write caching on drive */ -static int pkt_write_caching(struct pktcdvd_device *pd, int set) +static noinline_for_stack int pkt_write_caching(struct pktcdvd_device *pd, + int set) { struct packet_command cgc; struct request_sense sense; @@ -2116,7 +2119,8 @@ static int pkt_lock_door(struct pktcdvd_device *pd, int lockflag) /* * Returns drive maximum write speed */ -static int pkt_get_max_speed(struct pktcdvd_device *pd, unsigned *write_speed) +static noinline_for_stack int pkt_get_max_speed(struct pktcdvd_device *pd, + unsigned *write_speed) { struct packet_command cgc; struct request_sense sense; @@ -2177,7 +2181,8 @@ static char us_clv_to_speed[16] = { /* * reads the maximum media speed from ATIP */ -static int pkt_media_speed(struct pktcdvd_device *pd, unsigned *speed) +static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd, + unsigned *speed) { struct packet_command cgc; struct request_sense sense; @@ -2249,7 +2254,7 @@ static int pkt_media_speed(struct pktcdvd_device *pd, unsigned *speed) } } -static int pkt_perform_opc(struct pktcdvd_device *pd) +static noinline_for_stack int pkt_perform_opc(struct pktcdvd_device *pd) { struct packet_command cgc; struct request_sense sense; -- GitLab From 4874cc1b5142397d585c63d84b3d6d3afff60354 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 4 Mar 2008 14:28:42 -0800 Subject: [PATCH 429/923] powerpc: mpc5200: fix build error on mpc52xx_psc_spi device driver Commit id 94f389485e27641348c1951ab8d65157122a8939 (Separate MPC52xx PSC FIOF regsiters from the rest of PSC) split the PSC fifo registers away from the core PSC regs. Doing so broke the mpc52xx_psc_spi driver. This patch teaches the mpc52xx_psc_spi driver about the new PSC fifo register definitions. Signed-off-by: Grant Likely Cc: David Brownell Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Cc: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/mpc52xx_psc_spi.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c index 253ed5682a6..a86315a0c5b 100644 --- a/drivers/spi/mpc52xx_psc_spi.c +++ b/drivers/spi/mpc52xx_psc_spi.c @@ -42,6 +42,7 @@ struct mpc52xx_psc_spi { /* driver internal data */ struct mpc52xx_psc __iomem *psc; + struct mpc52xx_psc_fifo __iomem *fifo; unsigned int irq; u8 bits_per_word; u8 busy; @@ -139,6 +140,7 @@ static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi, { struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master); struct mpc52xx_psc __iomem *psc = mps->psc; + struct mpc52xx_psc_fifo __iomem *fifo = mps->fifo; unsigned rb = 0; /* number of bytes receieved */ unsigned sb = 0; /* number of bytes sent */ unsigned char *rx_buf = (unsigned char *)t->rx_buf; @@ -190,11 +192,11 @@ static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi, out_8(&psc->mode, 0); } else { out_8(&psc->mode, MPC52xx_PSC_MODE_FFULL); - out_be16(&psc->rfalarm, rfalarm); + out_be16(&fifo->rfalarm, rfalarm); } out_be16(&psc->mpc52xx_psc_imr, MPC52xx_PSC_IMR_RXRDY); wait_for_completion(&mps->done); - recv_at_once = in_be16(&psc->rfnum); + recv_at_once = in_be16(&fifo->rfnum); dev_dbg(&spi->dev, "%d bytes received\n", recv_at_once); send_at_once = recv_at_once; @@ -331,6 +333,7 @@ static void mpc52xx_psc_spi_cleanup(struct spi_device *spi) static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps) { struct mpc52xx_psc __iomem *psc = mps->psc; + struct mpc52xx_psc_fifo __iomem *fifo = mps->fifo; u32 mclken_div; int ret = 0; @@ -346,7 +349,7 @@ static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps) /* Disable interrupts, interrupts are based on alarm level */ out_be16(&psc->mpc52xx_psc_imr, 0); out_8(&psc->command, MPC52xx_PSC_SEL_MODE_REG_1); - out_8(&psc->rfcntl, 0); + out_8(&fifo->rfcntl, 0); out_8(&psc->mode, MPC52xx_PSC_MODE_FFULL); /* Configure 8bit codec mode as a SPI master and use EOF flags */ @@ -419,6 +422,8 @@ static int __init mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr, ret = -EFAULT; goto free_master; } + /* On the 5200, fifo regs are immediately ajacent to the psc regs */ + mps->fifo = ((void __iomem *)mps->psc) + sizeof(struct mpc52xx_psc); ret = request_irq(mps->irq, mpc52xx_psc_spi_isr, 0, "mpc52xx-psc-spi", mps); -- GitLab From fbc357df2e7728feb010148bed4eccb03a181610 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 4 Mar 2008 14:28:43 -0800 Subject: [PATCH 430/923] ds1wm: should check for IS_ERR(clk) instead of NULL On the error condition clk_get() returns ERR_PTR(..), so checking for NULL doesn't work. ds1wm module causes a kernel oops when ds1wm clock isn't registered. This patch converts NULL check to IS_ERR(), plus uses PTR_ERR() for the return code. Signed-off-by: Anton Vorontsov Acked-by: Evgeniy Polyakov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/w1/masters/ds1wm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c index 688e435b4d9..78a14dacb8e 100644 --- a/drivers/w1/masters/ds1wm.c +++ b/drivers/w1/masters/ds1wm.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -374,8 +375,8 @@ static int ds1wm_probe(struct platform_device *pdev) goto err1; ds1wm_data->clk = clk_get(&pdev->dev, "ds1wm"); - if (!ds1wm_data->clk) { - ret = -ENOENT; + if (IS_ERR(ds1wm_data->clk)) { + ret = PTR_ERR(ds1wm_data->clk); goto err2; } -- GitLab From daa49ff50a0cd1ddf88019e9afc41e26640ab1c4 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 4 Mar 2008 14:28:44 -0800 Subject: [PATCH 431/923] ds1wm: report bus reset error The patch replaces dev_dbg() by dev_err(), so the user could actually see the error, instead of wondering why w1 doesn't work. The root cause of the bus reset error isn't yet debugged though, but this sometimes happens on iPaq H5555. And while I'm at it, some cosmetic cleanups also made (few lines were using spaces instead of tabs). Signed-off-by: Anton Vorontsov Acked-by: Evgeniy Polyakov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/w1/masters/ds1wm.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c index 78a14dacb8e..10211e49300 100644 --- a/drivers/w1/masters/ds1wm.c +++ b/drivers/w1/masters/ds1wm.c @@ -103,12 +103,12 @@ struct ds1wm_data { static inline void ds1wm_write_register(struct ds1wm_data *ds1wm_data, u32 reg, u8 val) { - __raw_writeb(val, ds1wm_data->map + (reg << ds1wm_data->bus_shift)); + __raw_writeb(val, ds1wm_data->map + (reg << ds1wm_data->bus_shift)); } static inline u8 ds1wm_read_register(struct ds1wm_data *ds1wm_data, u32 reg) { - return __raw_readb(ds1wm_data->map + (reg << ds1wm_data->bus_shift)); + return __raw_readb(ds1wm_data->map + (reg << ds1wm_data->bus_shift)); } @@ -150,8 +150,8 @@ static int ds1wm_reset(struct ds1wm_data *ds1wm_data) timeleft = wait_for_completion_timeout(&reset_done, DS1WM_TIMEOUT); ds1wm_data->reset_complete = NULL; if (!timeleft) { - dev_dbg(&ds1wm_data->pdev->dev, "reset failed\n"); - return 1; + dev_err(&ds1wm_data->pdev->dev, "reset failed\n"); + return 1; } /* Wait for the end of the reset. According to the specs, the time @@ -168,11 +168,11 @@ static int ds1wm_reset(struct ds1wm_data *ds1wm_data) (ds1wm_data->active_high ? DS1WM_INTEN_IAS : 0)); if (!ds1wm_data->slave_present) { - dev_dbg(&ds1wm_data->pdev->dev, "reset: no devices found\n"); - return 1; - } + dev_dbg(&ds1wm_data->pdev->dev, "reset: no devices found\n"); + return 1; + } - return 0; + return 0; } static int ds1wm_write(struct ds1wm_data *ds1wm_data, u8 data) @@ -335,7 +335,7 @@ static int ds1wm_probe(struct platform_device *pdev) if (!pdev) return -ENODEV; - ds1wm_data = kzalloc(sizeof (*ds1wm_data), GFP_KERNEL); + ds1wm_data = kzalloc(sizeof(*ds1wm_data), GFP_KERNEL); if (!ds1wm_data) return -ENOMEM; -- GitLab From 5cba6d22e35a05adb28fdea191b232501518c455 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 4 Mar 2008 14:28:45 -0800 Subject: [PATCH 432/923] ndelay(): switch to C function to avoid 64-bit division We should be able to do ndelay(some_u64), but that can cause a call to __divdi3() to be emitted because the ndelay() macros does a divide. Fix it by switching to static inline which will force the u64 arg to be treated as an unsigned long. udelay() takes an unsigned long arg. [bunk@kernel.org: reported m68k build breakage] Cc: Adrian Bunk Cc: Evgeniy Polyakov Cc: Martin Michlmayr Cc: Herbert Xu Cc: Ralf Baechle Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/delay.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/include/linux/delay.h b/include/linux/delay.h index 17ddb55430a..54552d21296 100644 --- a/include/linux/delay.h +++ b/include/linux/delay.h @@ -7,6 +7,8 @@ * Delay routines, using a pre-computed "loops_per_jiffy" value. */ +#include + extern unsigned long loops_per_jiffy; #include @@ -32,7 +34,11 @@ extern unsigned long loops_per_jiffy; #endif #ifndef ndelay -#define ndelay(x) udelay(((x)+999)/1000) +static inline void ndelay(unsigned long x) +{ + udelay(DIV_ROUND_UP(x, 1000)); +} +#define ndelay(x) ndelay(x) #endif void calibrate_delay(void); -- GitLab From 5619d823bc0e49d05618cdf955b04055b51a7de5 Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Tue, 4 Mar 2008 14:28:46 -0800 Subject: [PATCH 433/923] sm501fb: direct color visual does not work The sm501fb palette code clearly does not handle direct color so change the driver to use true color visual for 16bpp. Signed-off-by: Ville Syrjala Acked-by: Magnus Damm Acked-by: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/sm501fb.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c index e83dfba7e63..6e7810d914c 100644 --- a/drivers/video/sm501fb.c +++ b/drivers/video/sm501fb.c @@ -397,7 +397,7 @@ static int sm501fb_set_par_common(struct fb_info *info, break; case 16: - info->fix.visual = FB_VISUAL_DIRECTCOLOR; + info->fix.visual = FB_VISUAL_TRUECOLOR; break; case 32: @@ -613,6 +613,7 @@ static int sm501fb_set_par_crt(struct fb_info *info) case 16: control |= SM501_DC_CRT_CONTROL_16BPP; + sm501fb_setup_gamma(fbi, SM501_DC_CRT_PALETTE); break; case 32: @@ -750,6 +751,7 @@ static int sm501fb_set_par_pnl(struct fb_info *info) case 16: control |= SM501_DC_PANEL_CONTROL_16BPP; + sm501fb_setup_gamma(fbi, SM501_DC_PANEL_PALETTE); break; case 32: -- GitLab From fedbb3625b3c16441de1378ca00a74e9c1733289 Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Tue, 4 Mar 2008 14:28:47 -0800 Subject: [PATCH 434/923] sm501fb: RGB offsets are reversed in 16bpp modes The RGB offsets were reversed in 16bpp modes. Simply trying to reverse the offsets when endianness differs is clearly the wrong thing to do but that is an issue for another patch. Signed-off-by: Ville Syrjala Acked-by: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/sm501fb.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c index 6e7810d914c..3a98d5a86af 100644 --- a/drivers/video/sm501fb.c +++ b/drivers/video/sm501fb.c @@ -286,13 +286,13 @@ static int sm501fb_check_var(struct fb_var_screeninfo *var, case 16: if (sm->pdata->flags & SM501_FBPD_SWAP_FB_ENDIAN) { - var->red.offset = 11; - var->green.offset = 5; - var->blue.offset = 0; - } else { var->blue.offset = 11; var->green.offset = 5; var->red.offset = 0; + } else { + var->red.offset = 11; + var->green.offset = 5; + var->blue.offset = 0; } var->red.length = 5; -- GitLab From 19d06eff4e0d77fc1a15c92f845f1916e2d10dd0 Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Tue, 4 Mar 2008 14:28:48 -0800 Subject: [PATCH 435/923] sm501fb: set transp.offset to 0 in 8bpp and 16bpp modes Even though it may not be strictly necessary transp.offset should probably be 0 when alpha channel is not available. Signed-off-by: Ville Syrjala Acked-by: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/sm501fb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c index 3a98d5a86af..f49287c88ab 100644 --- a/drivers/video/sm501fb.c +++ b/drivers/video/sm501fb.c @@ -281,6 +281,7 @@ static int sm501fb_check_var(struct fb_var_screeninfo *var, var->blue.length = var->bits_per_pixel; var->blue.offset = 0; var->transp.length = 0; + var->transp.offset = 0; break; @@ -294,6 +295,7 @@ static int sm501fb_check_var(struct fb_var_screeninfo *var, var->green.offset = 5; var->blue.offset = 0; } + var->transp.offset = 0; var->red.length = 5; var->green.length = 6; -- GitLab From 7e533705bd973267c488f8c3a7c7246ecad3a414 Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Tue, 4 Mar 2008 14:28:49 -0800 Subject: [PATCH 436/923] sm501fb: fix timing limits Vertical sync height register can only hold 6 bits. Fix the hsync start test to use > instead of >=. Also add a few clarifying comments. Signed-off-by: Ville Syrjala Acked-by: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/sm501fb.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c index f49287c88ab..742b5c656d6 100644 --- a/drivers/video/sm501fb.c +++ b/drivers/video/sm501fb.c @@ -237,12 +237,14 @@ static int sm501fb_check_var(struct fb_var_screeninfo *var, /* check we can fit these values into the registers */ - if (var->hsync_len > 255 || var->vsync_len > 255) + if (var->hsync_len > 255 || var->vsync_len > 63) return -EINVAL; - if ((var->xres + var->right_margin) >= 4096) + /* hdisplay end and hsync start */ + if ((var->xres + var->right_margin) > 4096) return -EINVAL; + /* vdisplay end and vsync start */ if ((var->yres + var->lower_margin) > 2048) return -EINVAL; -- GitLab From 245904a4ce08c48495b2fd6d6c317c26ddf2b57a Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Tue, 4 Mar 2008 14:28:49 -0800 Subject: [PATCH 437/923] sm501: remove a duplicated table misc_div is a subset of px_div so eliminate the smaller table. Signed-off-by: Ville Syrjala Cc: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mfd/sm501.c | 45 +++++++++++++-------------------------------- 1 file changed, 13 insertions(+), 32 deletions(-) diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index afd82966f9a..4de8d467762 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -53,26 +53,7 @@ struct sm501_devdata { #define MHZ (1000 * 1000) #ifdef DEBUG -static const unsigned int misc_div[] = { - [0] = 1, - [1] = 2, - [2] = 4, - [3] = 8, - [4] = 16, - [5] = 32, - [6] = 64, - [7] = 128, - [8] = 3, - [9] = 6, - [10] = 12, - [11] = 24, - [12] = 48, - [13] = 96, - [14] = 192, - [15] = 384, -}; - -static const unsigned int px_div[] = { +static const unsigned int div_tab[] = { [0] = 1, [1] = 2, [2] = 4, @@ -101,12 +82,12 @@ static const unsigned int px_div[] = { static unsigned long decode_div(unsigned long pll2, unsigned long val, unsigned int lshft, unsigned int selbit, - unsigned long mask, const unsigned int *dtab) + unsigned long mask) { if (val & selbit) pll2 = 288 * MHZ; - return pll2 / dtab[(val >> lshft) & mask]; + return pll2 / div_tab[(val >> lshft) & mask]; } #define fmt_freq(x) ((x) / MHZ), ((x) % MHZ), (x) @@ -141,10 +122,10 @@ static void sm501_dump_clk(struct sm501_devdata *sm) } sdclk0 = (misct & (1<<12)) ? pll2 : 288 * MHZ; - sdclk0 /= misc_div[((misct >> 8) & 0xf)]; + sdclk0 /= div_tab[((misct >> 8) & 0xf)]; sdclk1 = (misct & (1<<20)) ? pll2 : 288 * MHZ; - sdclk1 /= misc_div[((misct >> 16) & 0xf)]; + sdclk1 /= div_tab[((misct >> 16) & 0xf)]; dev_dbg(sm->dev, "MISCT=%08lx, PM0=%08lx, PM1=%08lx\n", misct, pm0, pm1); @@ -158,19 +139,19 @@ static void sm501_dump_clk(struct sm501_devdata *sm) "P2 %ld.%ld MHz (%ld), V2 %ld.%ld (%ld), " "M %ld.%ld (%ld), MX1 %ld.%ld (%ld)\n", (pmc & 3 ) == 0 ? '*' : '-', - fmt_freq(decode_div(pll2, pm0, 24, 1<<29, 31, px_div)), - fmt_freq(decode_div(pll2, pm0, 16, 1<<20, 15, misc_div)), - fmt_freq(decode_div(pll2, pm0, 8, 1<<12, 15, misc_div)), - fmt_freq(decode_div(pll2, pm0, 0, 1<<4, 15, misc_div))); + fmt_freq(decode_div(pll2, pm0, 24, 1<<29, 31)), + fmt_freq(decode_div(pll2, pm0, 16, 1<<20, 15)), + fmt_freq(decode_div(pll2, pm0, 8, 1<<12, 15)), + fmt_freq(decode_div(pll2, pm0, 0, 1<<4, 15))); dev_dbg(sm->dev, "PM1[%c]: " "P2 %ld.%ld MHz (%ld), V2 %ld.%ld (%ld), " "M %ld.%ld (%ld), MX1 %ld.%ld (%ld)\n", (pmc & 3 ) == 1 ? '*' : '-', - fmt_freq(decode_div(pll2, pm1, 24, 1<<29, 31, px_div)), - fmt_freq(decode_div(pll2, pm1, 16, 1<<20, 15, misc_div)), - fmt_freq(decode_div(pll2, pm1, 8, 1<<12, 15, misc_div)), - fmt_freq(decode_div(pll2, pm1, 0, 1<<4, 15, misc_div))); + fmt_freq(decode_div(pll2, pm1, 24, 1<<29, 31)), + fmt_freq(decode_div(pll2, pm1, 16, 1<<20, 15)), + fmt_freq(decode_div(pll2, pm1, 8, 1<<12, 15)), + fmt_freq(decode_div(pll2, pm1, 0, 1<<4, 15))); } static void sm501_dump_regs(struct sm501_devdata *sm) -- GitLab From 3149be50d3a31df095bcc83d752293da65a37f62 Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Tue, 4 Mar 2008 14:28:50 -0800 Subject: [PATCH 438/923] sm501: add support for the SM502 programmable PLL SM502 has a programmable PLL which can provide the panel pixel clock instead of the 288MHz and 336MHz PLLs. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Ville Syrjala Cc: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mfd/sm501.c | 163 +++++++++++++++++++++++++++++-------- include/linux/sm501-regs.h | 3 + include/linux/sm501.h | 3 +- 3 files changed, 133 insertions(+), 36 deletions(-) diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index 4de8d467762..13bac53db69 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -48,6 +48,7 @@ struct sm501_devdata { unsigned int pdev_id; unsigned int irq; void __iomem *regs; + unsigned int rev; }; #define MHZ (1000 * 1000) @@ -417,46 +418,108 @@ struct sm501_clock { unsigned long mclk; int divider; int shift; + unsigned int m, n, k; }; +/* sm501_calc_clock + * + * Calculates the nearest discrete clock frequency that + * can be achieved with the specified input clock. + * the maximum divisor is 3 or 5 + */ + +static int sm501_calc_clock(unsigned long freq, + struct sm501_clock *clock, + int max_div, + unsigned long mclk, + long *best_diff) +{ + int ret = 0; + int divider; + int shift; + long diff; + + /* try dividers 1 and 3 for CRT and for panel, + try divider 5 for panel only.*/ + + for (divider = 1; divider <= max_div; divider += 2) { + /* try all 8 shift values.*/ + for (shift = 0; shift < 8; shift++) { + /* Calculate difference to requested clock */ + diff = sm501fb_round_div(mclk, divider << shift) - freq; + if (diff < 0) + diff = -diff; + + /* If it is less than the current, use it */ + if (diff < *best_diff) { + *best_diff = diff; + + clock->mclk = mclk; + clock->divider = divider; + clock->shift = shift; + ret = 1; + } + } + } + + return ret; +} + +/* sm501_calc_pll + * + * Calculates the nearest discrete clock frequency that can be + * achieved using the programmable PLL. + * the maximum divisor is 3 or 5 + */ + +static unsigned long sm501_calc_pll(unsigned long freq, + struct sm501_clock *clock, + int max_div) +{ + unsigned long mclk; + unsigned int m, n, k; + long best_diff = 999999999; + + /* + * The SM502 datasheet doesn't specify the min/max values for M and N. + * N = 1 at least doesn't work in practice. + */ + for (m = 2; m <= 255; m++) { + for (n = 2; n <= 127; n++) { + for (k = 0; k <= 1; k++) { + mclk = (24000000UL * m / n) >> k; + + if (sm501_calc_clock(freq, clock, max_div, + mclk, &best_diff)) { + clock->m = m; + clock->n = n; + clock->k = k; + } + } + } + } + + /* Return best clock. */ + return clock->mclk / (clock->divider << clock->shift); +} + /* sm501_select_clock * - * selects nearest discrete clock frequency the SM501 can achive + * Calculates the nearest discrete clock frequency that can be + * achieved using the 288MHz and 336MHz PLLs. * the maximum divisor is 3 or 5 */ + static unsigned long sm501_select_clock(unsigned long freq, struct sm501_clock *clock, int max_div) { unsigned long mclk; - int divider; - int shift; - long diff; long best_diff = 999999999; /* Try 288MHz and 336MHz clocks. */ for (mclk = 288000000; mclk <= 336000000; mclk += 48000000) { - /* try dividers 1 and 3 for CRT and for panel, - try divider 5 for panel only.*/ - - for (divider = 1; divider <= max_div; divider += 2) { - /* try all 8 shift values.*/ - for (shift = 0; shift < 8; shift++) { - /* Calculate difference to requested clock */ - diff = sm501fb_round_div(mclk, divider << shift) - freq; - if (diff < 0) - diff = -diff; - - /* If it is less than the current, use it */ - if (diff < best_diff) { - best_diff = diff; - - clock->mclk = mclk; - clock->divider = divider; - clock->shift = shift; - } - } - } + sm501_calc_clock(freq, clock, max_div, mclk, &best_diff); } /* Return best clock. */ @@ -478,6 +541,7 @@ unsigned long sm501_set_clock(struct device *dev, unsigned long gate = readl(sm->regs + SM501_CURRENT_GATE); unsigned long clock = readl(sm->regs + SM501_CURRENT_CLOCK); unsigned char reg; + unsigned int pll_reg = 0; unsigned long sm501_freq; /* the actual frequency acheived */ struct sm501_clock to; @@ -492,14 +556,28 @@ unsigned long sm501_set_clock(struct device *dev, * requested frequency the value must be multiplied by * 2. This clock also has an additional pre divisor */ - sm501_freq = (sm501_select_clock(2 * req_freq, &to, 5) / 2); - reg=to.shift & 0x07;/* bottom 3 bits are shift */ - if (to.divider == 3) - reg |= 0x08; /* /3 divider required */ - else if (to.divider == 5) - reg |= 0x10; /* /5 divider required */ - if (to.mclk != 288000000) - reg |= 0x20; /* which mclk pll is source */ + if (sm->rev >= 0xC0) { + /* SM502 -> use the programmable PLL */ + sm501_freq = (sm501_calc_pll(2 * req_freq, + &to, 5) / 2); + reg = to.shift & 0x07;/* bottom 3 bits are shift */ + if (to.divider == 3) + reg |= 0x08; /* /3 divider required */ + else if (to.divider == 5) + reg |= 0x10; /* /5 divider required */ + reg |= 0x40; /* select the programmable PLL */ + pll_reg = 0x20000 | (to.k << 15) | (to.n << 8) | to.m; + } else { + sm501_freq = (sm501_select_clock(2 * req_freq, + &to, 5) / 2); + reg = to.shift & 0x07;/* bottom 3 bits are shift */ + if (to.divider == 3) + reg |= 0x08; /* /3 divider required */ + else if (to.divider == 5) + reg |= 0x10; /* /5 divider required */ + if (to.mclk != 288000000) + reg |= 0x20; /* which mclk pll is source */ + } break; case SM501_CLOCK_V2XCLK: @@ -560,6 +638,10 @@ unsigned long sm501_set_clock(struct device *dev, } writel(mode, sm->regs + SM501_POWER_MODE_CONTROL); + + if (pll_reg) + writel(pll_reg, sm->regs + SM501_PROGRAMMABLE_PLL_CONTROL); + sm501_sync_regs(sm); dev_info(sm->dev, "gate %08lx, clock %08lx, mode %08lx\n", @@ -580,15 +662,24 @@ EXPORT_SYMBOL_GPL(sm501_set_clock); * finds the closest available frequency for a given clock */ -unsigned long sm501_find_clock(int clksrc, +unsigned long sm501_find_clock(struct device *dev, + int clksrc, unsigned long req_freq) { + struct sm501_devdata *sm = dev_get_drvdata(dev); unsigned long sm501_freq; /* the frequency achiveable by the 501 */ struct sm501_clock to; switch (clksrc) { case SM501_CLOCK_P2XCLK: - sm501_freq = (sm501_select_clock(2 * req_freq, &to, 5) / 2); + if (sm->rev >= 0xC0) { + /* SM502 -> use the programmable PLL */ + sm501_freq = (sm501_calc_pll(2 * req_freq, + &to, 5) / 2); + } else { + sm501_freq = (sm501_select_clock(2 * req_freq, + &to, 5) / 2); + } break; case SM501_CLOCK_V2XCLK: @@ -895,6 +986,8 @@ static int sm501_init_dev(struct sm501_devdata *sm) dev_info(sm->dev, "SM501 At %p: Version %08lx, %ld Mb, IRQ %d\n", sm->regs, devid, (unsigned long)mem_avail >> 20, sm->irq); + sm->rev = devid & SM501_DEVICEID_REVMASK; + sm501_dump_gate(sm); ret = device_create_file(sm->dev, &dev_attr_dbg_regs); diff --git a/include/linux/sm501-regs.h b/include/linux/sm501-regs.h index 64236b73c72..d53642d2d89 100644 --- a/include/linux/sm501-regs.h +++ b/include/linux/sm501-regs.h @@ -129,11 +129,14 @@ #define SM501_DEVICEID_SM501 (0x05010000) #define SM501_DEVICEID_IDMASK (0xffff0000) +#define SM501_DEVICEID_REVMASK (0x000000ff) #define SM501_PLLCLOCK_COUNT (0x000064) #define SM501_MISC_TIMING (0x000068) #define SM501_CURRENT_SDRAM_CLOCK (0x00006C) +#define SM501_PROGRAMMABLE_PLL_CONTROL (0x000074) + /* GPIO base */ #define SM501_GPIO (0x010000) #define SM501_GPIO_DATA_LOW (0x00) diff --git a/include/linux/sm501.h b/include/linux/sm501.h index 932a9efee8a..bca13454470 100644 --- a/include/linux/sm501.h +++ b/include/linux/sm501.h @@ -24,7 +24,8 @@ extern int sm501_unit_power(struct device *dev, extern unsigned long sm501_set_clock(struct device *dev, int clksrc, unsigned long freq); -extern unsigned long sm501_find_clock(int clksrc, unsigned long req_freq); +extern unsigned long sm501_find_clock(struct device *dev, + int clksrc, unsigned long req_freq); /* sm501_misc_control * -- GitLab From a51f4124e6d69afdfae34a2ff2e580e7bf224ad2 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Tue, 4 Mar 2008 14:28:50 -0800 Subject: [PATCH 439/923] ipwireless: fix potential tty == NULL dereference The Coverity checker spotted the following inconsequent NULL checking in drivers/char/pcmcia/ipwireless/network.c:ipwireless_network_packet_received() if (tty && channel_idx == IPW_CHANNEL_RAS && (network->ras_control_lines & IPW_CONTROL_LINE_DCD) != 0 && ipwireless_tty_is_modem(tty)) { ... else ipwireless_tty_received(tty, data, length); Cc: Adrian Bunk Signed-off-by: David Sterba Signed-off-by: Jiri Kosina Cc: "John W. Linville" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/pcmcia/ipwireless/network.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/char/pcmcia/ipwireless/network.c b/drivers/char/pcmcia/ipwireless/network.c index ff35230058d..d793e68b3e0 100644 --- a/drivers/char/pcmcia/ipwireless/network.c +++ b/drivers/char/pcmcia/ipwireless/network.c @@ -377,13 +377,16 @@ void ipwireless_network_packet_received(struct ipw_network *network, for (i = 0; i < MAX_ASSOCIATED_TTYS; i++) { struct ipw_tty *tty = network->associated_ttys[channel_idx][i]; + if (!tty) + continue; + /* * If it's associated with a tty (other than the RAS channel * when we're online), then send the data to that tty. The RAS * channel's data is handled above - it always goes through * ppp_generic. */ - if (tty && channel_idx == IPW_CHANNEL_RAS + if (channel_idx == IPW_CHANNEL_RAS && (network->ras_control_lines & IPW_CONTROL_LINE_DCD) != 0 && ipwireless_tty_is_modem(tty)) { -- GitLab From 9fe3fd03a18ee42006a59b182761d7d0f6f090f3 Mon Sep 17 00:00:00 2001 From: Jesper Nilsson Date: Tue, 4 Mar 2008 14:28:52 -0800 Subject: [PATCH 440/923] CRIS: Import string.c (memcpy) from newlib: fixes compile error with gcc 4 Adrian Bunk reported another compile error with a SVN head GCC: ... CC arch/cris/arch-v10/lib/string.o /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/cris/arch-v10/lib/string.c:138: error: lvalue required as increment operand /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/cris/arch-v10/lib/string.c:138: error: lvalue required as increment operand /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/cris/arch-v10/lib/string.c:139: error: lvalue required as increment operand ... This is due to the use of the construct: *((long*)dst)++ = lc; Which isn't legal since casts don't return an lvalue. The solution is to import the implementation from newlib, which is continually autotested together with GCC mainline, and uses the construct: *(long *) dst = lc; dst += 4; Since this is an import of a file from newlib, I'm not touching the formatting or correcting any checkpatch errors. As for the earlier fix for memset.c, even if the two files for CRIS v10 and CRIS v32 are identical at the moment, it might be possible to tweak the CRIS v32 version. Thus, I'm not yet folding them into the same file, at least not until we've done some research on it. Signed-off-by: Jesper Nilsson Cc: Mikael Starvik Cc: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/cris/arch-v10/lib/string.c | 337 +++++++++++++++++--------------- arch/cris/arch-v32/lib/string.c | 325 +++++++++++++++--------------- 2 files changed, 345 insertions(+), 317 deletions(-) diff --git a/arch/cris/arch-v10/lib/string.c b/arch/cris/arch-v10/lib/string.c index 7161a2bef4f..c7bd6ebdc93 100644 --- a/arch/cris/arch-v10/lib/string.c +++ b/arch/cris/arch-v10/lib/string.c @@ -1,55 +1,59 @@ -/*#************************************************************************#*/ -/*#-------------------------------------------------------------------------*/ -/*# */ -/*# FUNCTION NAME: memcpy() */ -/*# */ -/*# PARAMETERS: void* dst; Destination address. */ -/*# void* src; Source address. */ -/*# int len; Number of bytes to copy. */ -/*# */ -/*# RETURNS: dst. */ -/*# */ -/*# DESCRIPTION: Copies len bytes of memory from src to dst. No guarantees */ -/*# about copying of overlapping memory areas. This routine is */ -/*# very sensitive to compiler changes in register allocation. */ -/*# Should really be rewritten to avoid this problem. */ -/*# */ -/*#-------------------------------------------------------------------------*/ -/*# */ -/*# HISTORY */ -/*# */ -/*# DATE NAME CHANGES */ -/*# ---- ---- ------- */ -/*# 941007 Kenny R Creation */ -/*# 941011 Kenny R Lots of optimizations and inlining. */ -/*# 941129 Ulf A Adapted for use in libc. */ -/*# 950216 HP N==0 forgotten if non-aligned src/dst. */ -/*# Added some optimizations. */ -/*# 001025 HP Make src and dst char *. Align dst to */ -/*# dword, not just word-if-both-src-and-dst- */ -/*# are-misaligned. */ -/*# */ -/*#-------------------------------------------------------------------------*/ - -#include - -void *memcpy(void *pdst, - const void *psrc, - size_t pn) +/* A memcpy for CRIS. + Copyright (C) 1994-2005 Axis Communications. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + 2. Neither the name of Axis Communications nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY AXIS COMMUNICATIONS AND ITS CONTRIBUTORS + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL AXIS + COMMUNICATIONS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. */ + +/* FIXME: This file should really only be used for reference, as the + result is somewhat depending on gcc generating what we expect rather + than what we describe. An assembly file should be used instead. */ + +#include + +/* Break even between movem and move16 is really at 38.7 * 2, but + modulo 44, so up to the next multiple of 44, we use ordinary code. */ +#define MEMCPY_BY_BLOCK_THRESHOLD (44 * 2) + +/* No name ambiguities in this file. */ +__asm__ (".syntax no_register_prefix"); + +void * +memcpy(void *pdst, const void *psrc, size_t pn) { - /* Ok. Now we want the parameters put in special registers. + /* Now we want the parameters put in special registers. Make sure the compiler is able to make something useful of this. - As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop). + As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop). - If gcc was alright, it really would need no temporaries, and no - stack space to save stuff on. */ + If gcc was allright, it really would need no temporaries, and no + stack space to save stuff on. */ register void *return_dst __asm__ ("r10") = pdst; - register char *dst __asm__ ("r13") = pdst; - register const char *src __asm__ ("r11") = psrc; + register unsigned char *dst __asm__ ("r13") = pdst; + register unsigned const char *src __asm__ ("r11") = psrc; register int n __asm__ ("r12") = pn; - - + /* When src is aligned but not dst, this makes a few extra needless cycles. I believe it would take as many to check that the re-alignment was unnecessary. */ @@ -59,167 +63,174 @@ void *memcpy(void *pdst, && n >= 3) { if ((unsigned long) dst & 1) - { - n--; - *(char*)dst = *(char*)src; - src++; - dst++; - } + { + n--; + *dst = *src; + src++; + dst++; + } if ((unsigned long) dst & 2) - { - n -= 2; - *(short*)dst = *(short*)src; - src += 2; - dst += 2; - } + { + n -= 2; + *(short *) dst = *(short *) src; + src += 2; + dst += 2; + } } - /* Decide which copying method to use. */ - if (n >= 44*2) /* Break even between movem and - move16 is at 38.7*2, but modulo 44. */ - { - /* For large copies we use 'movem' */ - - /* It is not optimal to tell the compiler about clobbering any - registers; that will move the saving/restoring of those registers - to the function prologue/epilogue, and make non-movem sizes - suboptimal. - - This method is not foolproof; it assumes that the "asm reg" - declarations at the beginning of the function really are used - here (beware: they may be moved to temporary registers). - This way, we do not have to save/move the registers around into - temporaries; we can safely use them straight away. - - If you want to check that the allocation was right; then - check the equalities in the first comment. It should say - "r13=r13, r11=r11, r12=r12" */ - __asm__ volatile ("\n\ - ;; Check that the following is true (same register names on \n\ - ;; both sides of equal sign, as in r8=r8): \n\ - ;; %0=r13, %1=r11, %2=r12 \n\ - ;; \n\ - ;; Save the registers we'll use in the movem process \n\ - ;; on the stack. \n\ - subq 11*4,$sp \n\ - movem $r10,[$sp] \n\ + /* Decide which copying method to use. */ + if (n >= MEMCPY_BY_BLOCK_THRESHOLD) + { + /* It is not optimal to tell the compiler about clobbering any + registers; that will move the saving/restoring of those registers + to the function prologue/epilogue, and make non-movem sizes + suboptimal. */ + __asm__ volatile + ("\ + ;; GCC does promise correct register allocations, but let's \n\ + ;; make sure it keeps its promises. \n\ + .ifnc %0-%1-%2,$r13-$r11-$r12 \n\ + .error \"GCC reg alloc bug: %0-%1-%4 != $r13-$r12-$r11\" \n\ + .endif \n\ + \n\ + ;; Save the registers we'll use in the movem process \n\ + ;; on the stack. \n\ + subq 11*4,sp \n\ + movem r10,[sp] \n\ \n\ - ;; Now we've got this: \n\ - ;; r11 - src \n\ - ;; r13 - dst \n\ - ;; r12 - n \n\ + ;; Now we've got this: \n\ + ;; r11 - src \n\ + ;; r13 - dst \n\ + ;; r12 - n \n\ \n\ - ;; Update n for the first loop \n\ - subq 44,$r12 \n\ + ;; Update n for the first loop. \n\ + subq 44,r12 \n\ 0: \n\ - movem [$r11+],$r10 \n\ - subq 44,$r12 \n\ - bge 0b \n\ - movem $r10,[$r13+] \n\ +" +#ifdef __arch_common_v10_v32 + /* Cater to branch offset difference between v32 and v10. We + assume the branch below has an 8-bit offset. */ +" setf\n" +#endif +" movem [r11+],r10 \n\ + subq 44,r12 \n\ + bge 0b \n\ + movem r10,[r13+] \n\ \n\ - addq 44,$r12 ;; compensate for last loop underflowing n \n\ + ;; Compensate for last loop underflowing n. \n\ + addq 44,r12 \n\ \n\ - ;; Restore registers from stack \n\ - movem [$sp+],$r10" + ;; Restore registers from stack. \n\ + movem [sp+],r10" - /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n) - /* Inputs */ : "0" (dst), "1" (src), "2" (n)); - - } + /* Outputs. */ + : "=r" (dst), "=r" (src), "=r" (n) - /* Either we directly starts copying, using dword copying - in a loop, or we copy as much as possible with 'movem' - and then the last block (<44 bytes) is copied here. - This will work since 'movem' will have updated src,dst,n. */ + /* Inputs. */ + : "0" (dst), "1" (src), "2" (n)); + } - while ( n >= 16 ) - { - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - n -= 16; - } + while (n >= 16) + { + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + + n -= 16; + } - /* A switch() is definitely the fastest although it takes a LOT of code. - * Particularly if you inline code this. - */ switch (n) - { + { case 0: break; + case 1: - *(char*)dst = *(char*)src; + *dst = *src; break; + case 2: - *(short*)dst = *(short*)src; + *(short *) dst = *(short *) src; break; + case 3: - *((short*)dst)++ = *((short*)src)++; - *(char*)dst = *(char*)src; + *(short *) dst = *(short *) src; dst += 2; src += 2; + *dst = *src; break; + case 4: - *((long*)dst)++ = *((long*)src)++; + *(long *) dst = *(long *) src; break; + case 5: - *((long*)dst)++ = *((long*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *dst = *src; break; + case 6: - *((long*)dst)++ = *((long*)src)++; - *(short*)dst = *(short*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; break; + case 7: - *((long*)dst)++ = *((long*)src)++; - *((short*)dst)++ = *((short*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; dst += 2; src += 2; + *dst = *src; break; + case 8: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; break; + case 9: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *dst = *src; break; + case 10: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *(short*)dst = *(short*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; break; + case 11: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((short*)dst)++ = *((short*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; dst += 2; src += 2; + *dst = *src; break; + case 12: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; break; + case 13: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *dst = *src; break; + case 14: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *(short*)dst = *(short*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; break; + case 15: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((short*)dst)++ = *((short*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; dst += 2; src += 2; + *dst = *src; break; - } + } - return return_dst; /* destination pointer. */ -} /* memcpy() */ + return return_dst; +} diff --git a/arch/cris/arch-v32/lib/string.c b/arch/cris/arch-v32/lib/string.c index 6740b2cebae..c7bd6ebdc93 100644 --- a/arch/cris/arch-v32/lib/string.c +++ b/arch/cris/arch-v32/lib/string.c @@ -1,55 +1,59 @@ -/*#************************************************************************#*/ -/*#-------------------------------------------------------------------------*/ -/*# */ -/*# FUNCTION NAME: memcpy() */ -/*# */ -/*# PARAMETERS: void* dst; Destination address. */ -/*# void* src; Source address. */ -/*# int len; Number of bytes to copy. */ -/*# */ -/*# RETURNS: dst. */ -/*# */ -/*# DESCRIPTION: Copies len bytes of memory from src to dst. No guarantees */ -/*# about copying of overlapping memory areas. This routine is */ -/*# very sensitive to compiler changes in register allocation. */ -/*# Should really be rewritten to avoid this problem. */ -/*# */ -/*#-------------------------------------------------------------------------*/ -/*# */ -/*# HISTORY */ -/*# */ -/*# DATE NAME CHANGES */ -/*# ---- ---- ------- */ -/*# 941007 Kenny R Creation */ -/*# 941011 Kenny R Lots of optimizations and inlining. */ -/*# 941129 Ulf A Adapted for use in libc. */ -/*# 950216 HP N==0 forgotten if non-aligned src/dst. */ -/*# Added some optimizations. */ -/*# 001025 HP Make src and dst char *. Align dst to */ -/*# dword, not just word-if-both-src-and-dst- */ -/*# are-misaligned. */ -/*# */ -/*#-------------------------------------------------------------------------*/ - -#include - -void *memcpy(void *pdst, - const void *psrc, - size_t pn) +/* A memcpy for CRIS. + Copyright (C) 1994-2005 Axis Communications. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + 2. Neither the name of Axis Communications nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY AXIS COMMUNICATIONS AND ITS CONTRIBUTORS + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL AXIS + COMMUNICATIONS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. */ + +/* FIXME: This file should really only be used for reference, as the + result is somewhat depending on gcc generating what we expect rather + than what we describe. An assembly file should be used instead. */ + +#include + +/* Break even between movem and move16 is really at 38.7 * 2, but + modulo 44, so up to the next multiple of 44, we use ordinary code. */ +#define MEMCPY_BY_BLOCK_THRESHOLD (44 * 2) + +/* No name ambiguities in this file. */ +__asm__ (".syntax no_register_prefix"); + +void * +memcpy(void *pdst, const void *psrc, size_t pn) { - /* Ok. Now we want the parameters put in special registers. + /* Now we want the parameters put in special registers. Make sure the compiler is able to make something useful of this. - As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop). + As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop). - If gcc was alright, it really would need no temporaries, and no - stack space to save stuff on. */ + If gcc was allright, it really would need no temporaries, and no + stack space to save stuff on. */ register void *return_dst __asm__ ("r10") = pdst; - register char *dst __asm__ ("r13") = pdst; - register const char *src __asm__ ("r11") = psrc; + register unsigned char *dst __asm__ ("r13") = pdst; + register unsigned const char *src __asm__ ("r11") = psrc; register int n __asm__ ("r12") = pn; - /* When src is aligned but not dst, this makes a few extra needless cycles. I believe it would take as many to check that the re-alignment was unnecessary. */ @@ -59,161 +63,174 @@ void *memcpy(void *pdst, && n >= 3) { if ((unsigned long) dst & 1) - { - n--; - *(char*)dst = *(char*)src; - src++; - dst++; - } + { + n--; + *dst = *src; + src++; + dst++; + } if ((unsigned long) dst & 2) - { - n -= 2; - *(short*)dst = *(short*)src; - src += 2; - dst += 2; - } + { + n -= 2; + *(short *) dst = *(short *) src; + src += 2; + dst += 2; + } } - /* Decide which copying method to use. Movem is dirt cheap, so the - overheap is low enough to always use the minimum block size as the - threshold. */ - if (n >= 44) - { - /* For large copies we use 'movem' */ - - /* It is not optimal to tell the compiler about clobbering any - registers; that will move the saving/restoring of those registers - to the function prologue/epilogue, and make non-movem sizes - suboptimal. */ - __asm__ volatile (" \n\ - ;; Check that the register asm declaration got right. \n\ - ;; The GCC manual explicitly says TRT will happen. \n\ - .ifnc %0-%1-%2,$r13-$r11-$r12 \n\ - .err \n\ - .endif \n\ - \n\ - ;; Save the registers we'll use in the movem process \n\ + /* Decide which copying method to use. */ + if (n >= MEMCPY_BY_BLOCK_THRESHOLD) + { + /* It is not optimal to tell the compiler about clobbering any + registers; that will move the saving/restoring of those registers + to the function prologue/epilogue, and make non-movem sizes + suboptimal. */ + __asm__ volatile + ("\ + ;; GCC does promise correct register allocations, but let's \n\ + ;; make sure it keeps its promises. \n\ + .ifnc %0-%1-%2,$r13-$r11-$r12 \n\ + .error \"GCC reg alloc bug: %0-%1-%4 != $r13-$r12-$r11\" \n\ + .endif \n\ \n\ - ;; on the stack. \n\ - subq 11*4,$sp \n\ - movem $r10,[$sp] \n\ + ;; Save the registers we'll use in the movem process \n\ + ;; on the stack. \n\ + subq 11*4,sp \n\ + movem r10,[sp] \n\ \n\ - ;; Now we've got this: \n\ - ;; r11 - src \n\ - ;; r13 - dst \n\ - ;; r12 - n \n\ + ;; Now we've got this: \n\ + ;; r11 - src \n\ + ;; r13 - dst \n\ + ;; r12 - n \n\ \n\ - ;; Update n for the first loop \n\ - subq 44,$r12 \n\ + ;; Update n for the first loop. \n\ + subq 44,r12 \n\ 0: \n\ - movem [$r11+],$r10 \n\ - subq 44,$r12 \n\ - bge 0b \n\ - movem $r10,[$r13+] \n\ +" +#ifdef __arch_common_v10_v32 + /* Cater to branch offset difference between v32 and v10. We + assume the branch below has an 8-bit offset. */ +" setf\n" +#endif +" movem [r11+],r10 \n\ + subq 44,r12 \n\ + bge 0b \n\ + movem r10,[r13+] \n\ \n\ - addq 44,$r12 ;; compensate for last loop underflowing n \n\ + ;; Compensate for last loop underflowing n. \n\ + addq 44,r12 \n\ \n\ - ;; Restore registers from stack \n\ - movem [$sp+],$r10" + ;; Restore registers from stack. \n\ + movem [sp+],r10" - /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n) - /* Inputs */ : "0" (dst), "1" (src), "2" (n)); + /* Outputs. */ + : "=r" (dst), "=r" (src), "=r" (n) - } + /* Inputs. */ + : "0" (dst), "1" (src), "2" (n)); + } - /* Either we directly starts copying, using dword copying - in a loop, or we copy as much as possible with 'movem' - and then the last block (<44 bytes) is copied here. - This will work since 'movem' will have updated src,dst,n. */ + while (n >= 16) + { + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; - while ( n >= 16 ) - { - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - n -= 16; - } + n -= 16; + } - /* A switch() is definitely the fastest although it takes a LOT of code. - * Particularly if you inline code this. - */ switch (n) - { + { case 0: break; + case 1: - *(char*)dst = *(char*)src; + *dst = *src; break; + case 2: - *(short*)dst = *(short*)src; + *(short *) dst = *(short *) src; break; + case 3: - *((short*)dst)++ = *((short*)src)++; - *(char*)dst = *(char*)src; + *(short *) dst = *(short *) src; dst += 2; src += 2; + *dst = *src; break; + case 4: - *((long*)dst)++ = *((long*)src)++; + *(long *) dst = *(long *) src; break; + case 5: - *((long*)dst)++ = *((long*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *dst = *src; break; + case 6: - *((long*)dst)++ = *((long*)src)++; - *(short*)dst = *(short*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; break; + case 7: - *((long*)dst)++ = *((long*)src)++; - *((short*)dst)++ = *((short*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; dst += 2; src += 2; + *dst = *src; break; + case 8: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; break; + case 9: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *dst = *src; break; + case 10: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *(short*)dst = *(short*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; break; + case 11: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((short*)dst)++ = *((short*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; dst += 2; src += 2; + *dst = *src; break; + case 12: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; break; + case 13: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *dst = *src; break; + case 14: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *(short*)dst = *(short*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; break; + case 15: - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((long*)dst)++ = *((long*)src)++; - *((short*)dst)++ = *((short*)src)++; - *(char*)dst = *(char*)src; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(long *) dst = *(long *) src; dst += 4; src += 4; + *(short *) dst = *(short *) src; dst += 2; src += 2; + *dst = *src; break; - } + } - return return_dst; /* destination pointer. */ -} /* memcpy() */ + return return_dst; +} -- GitLab From 040922c04cf2c8ac70be2e88a8a9614ecdb41d2e Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Tue, 4 Mar 2008 14:28:53 -0800 Subject: [PATCH 441/923] include falloc.h in header-y Include falloc.h in header-y; it defines a flag for the fallocate sysctl. Signed-off-by: Eric Sandeen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/Kbuild | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/Kbuild b/include/linux/Kbuild index aada32fffec..994df378000 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -61,6 +61,7 @@ header-y += efs_fs_sb.h header-y += elf-fdpic.h header-y += elf-em.h header-y += fadvise.h +header-y += falloc.h header-y += fd.h header-y += fdreg.h header-y += fib_rules.h -- GitLab From 3c5f1def7dd50b792f56dcf7378c2684c06947f3 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 4 Mar 2008 14:28:54 -0800 Subject: [PATCH 442/923] alpha: convert IOMMU to use ALIGN() This patch is preparation for modifications to fix the IOMMU segment boundary problem. Signed-off-by: FUJITA Tomonori Cc: Richard Henderson Cc: Ivan Kokshaysky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/kernel/pci_iommu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index 26d3789dfdd..bbf9990cd23 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -136,11 +136,11 @@ iommu_arena_find_pages(struct pci_iommu_arena *arena, long n, long mask) /* Search forward for the first mask-aligned sequence of N free ptes */ ptes = arena->ptes; nent = arena->size >> PAGE_SHIFT; - p = (arena->next_entry + mask) & ~mask; + p = ALIGN(arena->next_entry, mask + 1); i = 0; while (i < n && p+i < nent) { if (ptes[p+i]) - p = (p + i + 1 + mask) & ~mask, i = 0; + p = ALIGN(p + i + 1, mask + 1), i = 0; else i = i + 1; } @@ -153,7 +153,7 @@ iommu_arena_find_pages(struct pci_iommu_arena *arena, long n, long mask) p = 0, i = 0; while (i < n && p+i < nent) { if (ptes[p+i]) - p = (p + i + 1 + mask) & ~mask, i = 0; + p = ALIGN(p + i + 1, mask + 1), i = 0; else i = i + 1; } -- GitLab From 23d7e0390ab57cf15a5cfe8d6806192f0997e5a8 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 4 Mar 2008 14:28:57 -0800 Subject: [PATCH 443/923] alpha: IOMMU had better access to the free space bitmap at only one place iommu_arena_find_pages duplicates the code to access to the bitmap for free space management. This patch convert the IOMMU code to have only one place to access the bitmap, in the popular way that other IOMMUs (e.g. POWER and SPARC) do. This patch is preparation for modifications to fix the IOMMU segment boundary problem. Signed-off-by: FUJITA Tomonori Cc: Richard Henderson Cc: Ivan Kokshaysky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/kernel/pci_iommu.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index bbf9990cd23..e54f829528c 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -132,12 +132,15 @@ iommu_arena_find_pages(struct pci_iommu_arena *arena, long n, long mask) { unsigned long *ptes; long i, p, nent; + int pass = 0; /* Search forward for the first mask-aligned sequence of N free ptes */ ptes = arena->ptes; nent = arena->size >> PAGE_SHIFT; p = ALIGN(arena->next_entry, mask + 1); i = 0; + +again: while (i < n && p+i < nent) { if (ptes[p+i]) p = ALIGN(p + i + 1, mask + 1), i = 0; @@ -146,19 +149,18 @@ iommu_arena_find_pages(struct pci_iommu_arena *arena, long n, long mask) } if (i < n) { - /* Reached the end. Flush the TLB and restart the - search from the beginning. */ - alpha_mv.mv_pci_tbi(arena->hose, 0, -1); - - p = 0, i = 0; - while (i < n && p+i < nent) { - if (ptes[p+i]) - p = ALIGN(p + i + 1, mask + 1), i = 0; - else - i = i + 1; - } - - if (i < n) + if (pass < 1) { + /* + * Reached the end. Flush the TLB and restart + * the search from the beginning. + */ + alpha_mv.mv_pci_tbi(arena->hose, 0, -1); + + pass++; + p = 0; + i = 0; + goto again; + } else return -1; } -- GitLab From cf5401454863df8e6dc3ebe8faad09141cbec187 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 4 Mar 2008 14:28:57 -0800 Subject: [PATCH 444/923] alpha: make IOMMU respect the segment boundary limits This patch makes the IOMMU code not allocate a memory area spanning LLD's segment boundary. is_span_boundary() judges whether a memory area spans LLD's segment boundary. If iommu_arena_find_pages() finds such a area, it tries to find the next available memory area. Signed-off-by: FUJITA Tomonori Cc: Richard Henderson Cc: Ivan Kokshaysky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/kernel/pci_iommu.c | 40 +++++++++++++++++++++++++++++------ 1 file changed, 34 insertions(+), 6 deletions(-) diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index e54f829528c..54540c369c9 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -126,13 +126,34 @@ iommu_arena_new(struct pci_controller *hose, dma_addr_t base, return iommu_arena_new_node(0, hose, base, window_size, align); } +static inline int is_span_boundary(unsigned int index, unsigned int nr, + unsigned long shift, + unsigned long boundary_size) +{ + shift = (shift + index) & (boundary_size - 1); + return shift + nr > boundary_size; +} + /* Must be called with the arena lock held */ static long -iommu_arena_find_pages(struct pci_iommu_arena *arena, long n, long mask) +iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena, + long n, long mask) { unsigned long *ptes; long i, p, nent; int pass = 0; + unsigned long base; + unsigned long boundary_size; + + BUG_ON(arena->dma_base & ~PAGE_MASK); + base = arena->dma_base >> PAGE_SHIFT; + if (dev) + boundary_size = ALIGN(dma_get_max_seg_size(dev) + 1, PAGE_SIZE) + >> PAGE_SHIFT; + else + boundary_size = ALIGN(1UL << 32, PAGE_SIZE) >> PAGE_SHIFT; + + BUG_ON(!is_power_of_2(boundary_size)); /* Search forward for the first mask-aligned sequence of N free ptes */ ptes = arena->ptes; @@ -142,6 +163,11 @@ iommu_arena_find_pages(struct pci_iommu_arena *arena, long n, long mask) again: while (i < n && p+i < nent) { + if (!i && is_span_boundary(p, n, base, boundary_size)) { + p = ALIGN(p + 1, mask + 1); + goto again; + } + if (ptes[p+i]) p = ALIGN(p + i + 1, mask + 1), i = 0; else @@ -170,7 +196,8 @@ again: } static long -iommu_arena_alloc(struct pci_iommu_arena *arena, long n, unsigned int align) +iommu_arena_alloc(struct device *dev, struct pci_iommu_arena *arena, long n, + unsigned int align) { unsigned long flags; unsigned long *ptes; @@ -181,7 +208,7 @@ iommu_arena_alloc(struct pci_iommu_arena *arena, long n, unsigned int align) /* Search for N empty ptes */ ptes = arena->ptes; mask = max(align, arena->align_entry) - 1; - p = iommu_arena_find_pages(arena, n, mask); + p = iommu_arena_find_pages(dev, arena, n, mask); if (p < 0) { spin_unlock_irqrestore(&arena->lock, flags); return -1; @@ -231,6 +258,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, unsigned long paddr; dma_addr_t ret; unsigned int align = 0; + struct device *dev = pdev ? &pdev->dev : NULL; paddr = __pa(cpu_addr); @@ -278,7 +306,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, /* Force allocation to 64KB boundary for ISA bridges. */ if (pdev && pdev == isa_bridge) align = 8; - dma_ofs = iommu_arena_alloc(arena, npages, align); + dma_ofs = iommu_arena_alloc(dev, arena, npages, align); if (dma_ofs < 0) { printk(KERN_WARNING "pci_map_single failed: " "could not allocate dma page tables\n"); @@ -565,7 +593,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, paddr &= ~PAGE_MASK; npages = calc_npages(paddr + size); - dma_ofs = iommu_arena_alloc(arena, npages, 0); + dma_ofs = iommu_arena_alloc(dev, arena, npages, 0); if (dma_ofs < 0) { /* If we attempted a direct map above but failed, die. */ if (leader->dma_address == 0) @@ -832,7 +860,7 @@ iommu_reserve(struct pci_iommu_arena *arena, long pg_count, long align_mask) /* Search for N empty ptes. */ ptes = arena->ptes; - p = iommu_arena_find_pages(arena, pg_count, align_mask); + p = iommu_arena_find_pages(NULL, arena, pg_count, align_mask); if (p < 0) { spin_unlock_irqrestore(&arena->lock, flags); return -1; -- GitLab From d5a4630a0daad241c761064295958554472ed491 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 4 Mar 2008 14:28:58 -0800 Subject: [PATCH 445/923] alpha: remove unused DEBUG_FORCEDAC define in IOMMU This just removes unused DEBUG_FORCEDAC define in the IOMMU code. Signed-off-by: FUJITA Tomonori Cc: Richard Henderson Cc: Ivan Kokshaysky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/kernel/pci_iommu.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index 54540c369c9..be6fa105cd3 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -31,7 +31,6 @@ #endif #define DEBUG_NODIRECT 0 -#define DEBUG_FORCEDAC 0 #define ISA_DMA_MASK 0x00ffffff -- GitLab From 7088655477b51a5a248fa54190388e1283ba7ebf Mon Sep 17 00:00:00 2001 From: Chris Dearman Date: Tue, 4 Mar 2008 14:28:59 -0800 Subject: [PATCH 446/923] .gitignore: ignore emacs backup and temporary files. Signed-off-by: Chris Dearman Signed-off-by: Ralf Baechle Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- .gitignore | 2 ++ 1 file changed, 2 insertions(+) diff --git a/.gitignore b/.gitignore index 8363e48cdcd..fdcce40226d 100644 --- a/.gitignore +++ b/.gitignore @@ -53,3 +53,5 @@ cscope.* *.orig *.rej +*~ +\#*# -- GitLab From 544adb41077a10d299a1094f12ec55a5843a9bdb Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Tue, 4 Mar 2008 14:29:00 -0800 Subject: [PATCH 447/923] markers: don't risk NULL deref in marker get_marker() may return NULL, so test for it. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Jesper Juhl Acked-by: Mathieu Desnoyers Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/marker.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/kernel/marker.c b/kernel/marker.c index 50effc01d9a..48a4ea5afff 100644 --- a/kernel/marker.c +++ b/kernel/marker.c @@ -698,14 +698,12 @@ int marker_probe_unregister(const char *name, { struct marker_entry *entry; struct marker_probe_closure *old; - int ret = 0; + int ret = -ENOENT; mutex_lock(&markers_mutex); entry = get_marker(name); - if (!entry) { - ret = -ENOENT; + if (!entry) goto end; - } if (entry->rcu_pending) rcu_barrier(); old = marker_entry_remove_probe(entry, probe, probe_private); @@ -713,12 +711,15 @@ int marker_probe_unregister(const char *name, marker_update_probes(); /* may update entry */ mutex_lock(&markers_mutex); entry = get_marker(name); + if (!entry) + goto end; entry->oldptr = old; entry->rcu_pending = 1; /* write rcu_pending before calling the RCU callback */ smp_wmb(); call_rcu(&entry->rcu, free_old_closure); remove_marker(name); /* Ignore busy error message */ + ret = 0; end: mutex_unlock(&markers_mutex); return ret; -- GitLab From acc4988bcf38f9618886eaeb9802aeacc6978ec2 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Tue, 4 Mar 2008 14:29:00 -0800 Subject: [PATCH 448/923] markers: add an if(0) to __mark_check_format() Wrap __mark_check_format() into an if(0) to make sure that parameters such as trace_mark(mm_page_alloc, "order %u pfn %lu", order, page?page_to_pfn(page):0); (where page_to_pfn() has side-effects) won't generate code because of the __mark_check_format(). Thanks to Jan Kiszka for reporting this. Signed-off-by: Mathieu Desnoyers Cc: Jan Kiszka Cc: "Frank Ch. Eigler" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/marker.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/include/linux/marker.h b/include/linux/marker.h index 5df879dc377..430f6adf976 100644 --- a/include/linux/marker.h +++ b/include/linux/marker.h @@ -104,10 +104,16 @@ static inline void marker_update_probe_range(struct marker *begin, #define MARK_NOARGS " " /* To be used for string format validity checking with gcc */ -static inline void __printf(1, 2) __mark_check_format(const char *fmt, ...) +static inline void __printf(1, 2) ___mark_check_format(const char *fmt, ...) { } +#define __mark_check_format(format, args...) \ + do { \ + if (0) \ + ___mark_check_format(format, ## args); \ + } while (0) + extern marker_probe_func __mark_empty_function; extern void marker_probe_cb(const struct marker *mdata, -- GitLab From bd845e38c7a7251a95a8f2c38aa7fb87140b771d Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:01 -0800 Subject: [PATCH 449/923] memcg: mm_match_cgroup not vm_match_cgroup vm_match_cgroup is a perverse name for a macro to match mm with cgroup: rename it mm_match_cgroup, matching mm_init_cgroup and mm_free_cgroup. Signed-off-by: Hugh Dickins Acked-by: David Rientjes Acked-by: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 4 ++-- mm/memcontrol.c | 2 +- mm/rmap.c | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index a8be8073b9e..e4247c83c1c 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -48,7 +48,7 @@ extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem); -#define vm_match_cgroup(mm, cgroup) \ +#define mm_match_cgroup(mm, cgroup) \ ((cgroup) == rcu_dereference((mm)->mem_cgroup)) extern int mem_cgroup_prepare_migration(struct page *page); @@ -118,7 +118,7 @@ static inline int mem_cgroup_cache_charge(struct page *page, return 0; } -static inline int vm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *mem) +static inline int mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *mem) { return 1; } diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 631002d085d..41041c0a689 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -399,7 +399,7 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem) int ret; task_lock(task); - ret = task->mm && vm_match_cgroup(task->mm, mem); + ret = task->mm && mm_match_cgroup(task->mm, mem); task_unlock(task); return ret; } diff --git a/mm/rmap.c b/mm/rmap.c index 8fd527c4e2b..0c9a2df06c3 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -321,7 +321,7 @@ static int page_referenced_anon(struct page *page, * counting on behalf of references from different * cgroups */ - if (mem_cont && !vm_match_cgroup(vma->vm_mm, mem_cont)) + if (mem_cont && !mm_match_cgroup(vma->vm_mm, mem_cont)) continue; referenced += page_referenced_one(page, vma, &mapcount); if (!mapcount) @@ -382,7 +382,7 @@ static int page_referenced_file(struct page *page, * counting on behalf of references from different * cgroups */ - if (mem_cont && !vm_match_cgroup(vma->vm_mm, mem_cont)) + if (mem_cont && !mm_match_cgroup(vma->vm_mm, mem_cont)) continue; if ((vma->vm_flags & (VM_LOCKED|VM_MAYSHARE)) == (VM_LOCKED|VM_MAYSHARE)) { -- GitLab From 427d5416f317681498337ab19218d195edea02d6 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:03 -0800 Subject: [PATCH 450/923] memcg: move_lists on page not page_cgroup Each caller of mem_cgroup_move_lists is having to use page_get_page_cgroup: it's more convenient if it acts upon the page itself not the page_cgroup; and in a later patch this becomes important to handle within memcontrol.c. Signed-off-by: Hugh Dickins Cc: David Rientjes Acked-by: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 5 ++--- mm/memcontrol.c | 4 +++- mm/swap.c | 2 +- mm/vmscan.c | 5 +++-- 4 files changed, 9 insertions(+), 7 deletions(-) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index e4247c83c1c..56432ff8d4e 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -36,7 +36,7 @@ extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); extern void mem_cgroup_uncharge(struct page_cgroup *pc); extern void mem_cgroup_uncharge_page(struct page *page); -extern void mem_cgroup_move_lists(struct page_cgroup *pc, bool active); +extern void mem_cgroup_move_lists(struct page *page, bool active); extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, struct list_head *dst, unsigned long *scanned, int order, @@ -106,8 +106,7 @@ static inline void mem_cgroup_uncharge_page(struct page *page) { } -static inline void mem_cgroup_move_lists(struct page_cgroup *pc, - bool active) +static inline void mem_cgroup_move_lists(struct page *page, bool active) { } diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 41041c0a689..afdd406f618 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -407,11 +407,13 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem) /* * This routine assumes that the appropriate zone's lru lock is already held */ -void mem_cgroup_move_lists(struct page_cgroup *pc, bool active) +void mem_cgroup_move_lists(struct page *page, bool active) { + struct page_cgroup *pc; struct mem_cgroup_per_zone *mz; unsigned long flags; + pc = page_get_page_cgroup(page); if (!pc) return; diff --git a/mm/swap.c b/mm/swap.c index 710a20bb974..d4ec59aa5c4 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -176,7 +176,7 @@ void activate_page(struct page *page) SetPageActive(page); add_page_to_active_list(zone, page); __count_vm_event(PGACTIVATE); - mem_cgroup_move_lists(page_get_page_cgroup(page), true); + mem_cgroup_move_lists(page, true); } spin_unlock_irq(&zone->lru_lock); } diff --git a/mm/vmscan.c b/mm/vmscan.c index 106ba10e1ac..45711585684 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1128,7 +1128,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone, ClearPageActive(page); list_move(&page->lru, &zone->inactive_list); - mem_cgroup_move_lists(page_get_page_cgroup(page), false); + mem_cgroup_move_lists(page, false); pgmoved++; if (!pagevec_add(&pvec, page)) { __mod_zone_page_state(zone, NR_INACTIVE, pgmoved); @@ -1156,8 +1156,9 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone, VM_BUG_ON(PageLRU(page)); SetPageLRU(page); VM_BUG_ON(!PageActive(page)); + list_move(&page->lru, &zone->active_list); - mem_cgroup_move_lists(page_get_page_cgroup(page), true); + mem_cgroup_move_lists(page, true); pgmoved++; if (!pagevec_add(&pvec, page)) { __mod_zone_page_state(zone, NR_ACTIVE, pgmoved); -- GitLab From 6dbf6d3bb955d5a92005b6ecd6ffad2c5b95b963 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:04 -0800 Subject: [PATCH 451/923] memcg: page_cache_release not __free_page There's nothing wrong with mem_cgroup_charge failure in do_wp_page and do_anonymous page using __free_page, but it does look odd when nearby code uses page_cache_release: use that instead (while turning a blind eye to ancient inconsistencies of page_cache_release versus put_page). Signed-off-by: Hugh Dickins Cc: David Rientjes Acked-by: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index ce3c9e4492d..7f8c03ec587 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1711,7 +1711,7 @@ unlock: } return ret; oom_free_new: - __free_page(new_page); + page_cache_release(new_page); oom: if (old_page) page_cache_release(old_page); @@ -2163,7 +2163,7 @@ release: page_cache_release(page); goto unlock; oom_free_page: - __free_page(page); + page_cache_release(page); oom: return VM_FAULT_OOM; } -- GitLab From 61469f1d51777fc3b6d8d70da8373ee77ee13349 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:04 -0800 Subject: [PATCH 452/923] memcg: when do_swap's do_wp_page fails Don't uncharge when do_swap_page's call to do_wp_page fails: the page which was charged for is there in the pagetable, and will be correctly uncharged when that area is unmapped - it was only its COWing which failed. And while we're here, remove earlier XXX comment: yes, OR in do_wp_page's return value (maybe VM_FAULT_WRITE) with do_swap_page's there; but if it fails, mask out success bits, which might confuse some arches e.g. sparc. Signed-off-by: Hugh Dickins Cc: David Rientjes Acked-by: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 7f8c03ec587..0d14d1e58a5 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2093,12 +2093,9 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, unlock_page(page); if (write_access) { - /* XXX: We could OR the do_wp_page code with this one? */ - if (do_wp_page(mm, vma, address, - page_table, pmd, ptl, pte) & VM_FAULT_OOM) { - mem_cgroup_uncharge_page(page); - ret = VM_FAULT_OOM; - } + ret |= do_wp_page(mm, vma, address, page_table, pmd, ptl, pte); + if (ret & VM_FAULT_ERROR) + ret &= VM_FAULT_ERROR; goto out; } -- GitLab From 98837c7f82ef78aa38f40462aa2fcac68fd3acbf Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:06 -0800 Subject: [PATCH 453/923] memcg: fix VM_BUG_ON from page migration Page migration gave me free_hot_cold_page's VM_BUG_ON page->page_cgroup. remove_migration_pte was calling mem_cgroup_charge on the new page whenever it found a swap pte, before it had determined it to be a migration entry. That left a surplus reference count on the page_cgroup, so it was still attached when the page was later freed. Move that mem_cgroup_charge down to where we're sure it's a migration entry. We were already under i_mmap_lock or anon_vma->lock, so its GFP_KERNEL was already inappropriate: change that to GFP_ATOMIC. It's essential that remove_migration_pte removes all the migration entries, other crashes follow if not. So proceed even when the charge fails: normally it cannot, but after a mem_cgroup_force_empty it might - comment in the code. Signed-off-by: Hugh Dickins Cc: David Rientjes Cc: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/migrate.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index a73504ff5ab..4e0eccca5e2 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -153,11 +153,6 @@ static void remove_migration_pte(struct vm_area_struct *vma, return; } - if (mem_cgroup_charge(new, mm, GFP_KERNEL)) { - pte_unmap(ptep); - return; - } - ptl = pte_lockptr(mm, pmd); spin_lock(ptl); pte = *ptep; @@ -169,6 +164,20 @@ static void remove_migration_pte(struct vm_area_struct *vma, if (!is_migration_entry(entry) || migration_entry_to_page(entry) != old) goto out; + /* + * Yes, ignore the return value from a GFP_ATOMIC mem_cgroup_charge. + * Failure is not an option here: we're now expected to remove every + * migration pte, and will cause crashes otherwise. Normally this + * is not an issue: mem_cgroup_prepare_migration bumped up the old + * page_cgroup count for safety, that's now attached to the new page, + * so this charge should just be another incrementation of the count, + * to keep in balance with rmap.c's mem_cgroup_uncharging. But if + * there's been a force_empty, those reference counts may no longer + * be reliable, and this charge can actually fail: oh well, we don't + * make the situation any worse by proceeding as if it had succeeded. + */ + mem_cgroup_charge(new, mm, GFP_ATOMIC); + get_page(new); pte = pte_mkold(mk_pte(new, vma->vm_page_prot)); if (is_write_migration_entry(entry)) -- GitLab From 9442ec9df40d952b0de185ae5638a74970388e01 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:07 -0800 Subject: [PATCH 454/923] memcg: bad page if page_cgroup when free Replace free_hot_cold_page's VM_BUG_ON(page_get_page_cgroup(page)) by a "Bad page state" and clear: most users don't have CONFIG_DEBUG_VM on, and if it were set here, it'd likely cause corruption when the page is reused. Don't use page_assign_page_cgroup to clear it: that should be private to memcontrol.c, and always called with the lock taken; and memmap_init_zone doesn't need it either - like page->mapping and other pointers throughout the kernel, Linux assumes pointers in zeroed structures are NULL pointers. Instead use page_reset_bad_cgroup, added to memcontrol.h for this only. Signed-off-by: Hugh Dickins Cc: David Rientjes Acked-by: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 8 ++++---- mm/memcontrol.c | 27 ++++++++++++--------------- mm/page_alloc.c | 18 ++++++++++++------ 3 files changed, 28 insertions(+), 25 deletions(-) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 56432ff8d4e..70789df7dab 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -29,8 +29,9 @@ struct mm_struct; extern void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p); extern void mm_free_cgroup(struct mm_struct *mm); -extern void page_assign_page_cgroup(struct page *page, - struct page_cgroup *pc); + +#define page_reset_bad_cgroup(page) ((page)->page_cgroup = 0) + extern struct page_cgroup *page_get_page_cgroup(struct page *page); extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); @@ -82,8 +83,7 @@ static inline void mm_free_cgroup(struct mm_struct *mm) { } -static inline void page_assign_page_cgroup(struct page *page, - struct page_cgroup *pc) +static inline void page_reset_bad_cgroup(struct page *page) { } diff --git a/mm/memcontrol.c b/mm/memcontrol.c index afdd406f618..9e170d3c71e 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -140,11 +140,17 @@ struct mem_cgroup { /* * We use the lower bit of the page->page_cgroup pointer as a bit spin - * lock. We need to ensure that page->page_cgroup is atleast two - * byte aligned (based on comments from Nick Piggin) + * lock. We need to ensure that page->page_cgroup is at least two + * byte aligned (based on comments from Nick Piggin). But since + * bit_spin_lock doesn't actually set that lock bit in a non-debug + * uniprocessor kernel, we should avoid setting it here too. */ #define PAGE_CGROUP_LOCK_BIT 0x0 -#define PAGE_CGROUP_LOCK (1 << PAGE_CGROUP_LOCK_BIT) +#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK) +#define PAGE_CGROUP_LOCK (1 << PAGE_CGROUP_LOCK_BIT) +#else +#define PAGE_CGROUP_LOCK 0x0 +#endif /* * A page_cgroup page is associated with every page descriptor. The @@ -271,19 +277,10 @@ static inline int page_cgroup_locked(struct page *page) &page->page_cgroup); } -void page_assign_page_cgroup(struct page *page, struct page_cgroup *pc) +static void page_assign_page_cgroup(struct page *page, struct page_cgroup *pc) { - int locked; - - /* - * While resetting the page_cgroup we might not hold the - * page_cgroup lock. free_hot_cold_page() is an example - * of such a scenario - */ - if (pc) - VM_BUG_ON(!page_cgroup_locked(page)); - locked = (page->page_cgroup & PAGE_CGROUP_LOCK); - page->page_cgroup = ((unsigned long)pc | locked); + VM_BUG_ON(!page_cgroup_locked(page)); + page->page_cgroup = ((unsigned long)pc | PAGE_CGROUP_LOCK); } struct page_cgroup *page_get_page_cgroup(struct page *page) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e76cf94725c..402a504f122 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -222,13 +222,19 @@ static inline int bad_range(struct zone *zone, struct page *page) static void bad_page(struct page *page) { - printk(KERN_EMERG "Bad page state in process '%s'\n" - KERN_EMERG "page:%p flags:0x%0*lx mapping:%p mapcount:%d count:%d\n" - KERN_EMERG "Trying to fix it up, but a reboot is needed\n" - KERN_EMERG "Backtrace:\n", + void *pc = page_get_page_cgroup(page); + + printk(KERN_EMERG "Bad page state in process '%s'\n" KERN_EMERG + "page:%p flags:0x%0*lx mapping:%p mapcount:%d count:%d\n", current->comm, page, (int)(2*sizeof(unsigned long)), (unsigned long)page->flags, page->mapping, page_mapcount(page), page_count(page)); + if (pc) { + printk(KERN_EMERG "cgroup:%p\n", pc); + page_reset_bad_cgroup(page); + } + printk(KERN_EMERG "Trying to fix it up, but a reboot is needed\n" + KERN_EMERG "Backtrace:\n"); dump_stack(); page->flags &= ~(1 << PG_lru | 1 << PG_private | @@ -454,6 +460,7 @@ static inline int free_pages_check(struct page *page) { if (unlikely(page_mapcount(page) | (page->mapping != NULL) | + (page_get_page_cgroup(page) != NULL) | (page_count(page) != 0) | (page->flags & ( 1 << PG_lru | @@ -603,6 +610,7 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags) { if (unlikely(page_mapcount(page) | (page->mapping != NULL) | + (page_get_page_cgroup(page) != NULL) | (page_count(page) != 0) | (page->flags & ( 1 << PG_lru | @@ -989,7 +997,6 @@ static void free_hot_cold_page(struct page *page, int cold) if (!PageHighMem(page)) debug_check_no_locks_freed(page_address(page), PAGE_SIZE); - VM_BUG_ON(page_get_page_cgroup(page)); arch_free_page(page, 0); kernel_map_pages(page, 1, 0); @@ -2528,7 +2535,6 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone, set_page_links(page, zone, nid, pfn); init_page_count(page); reset_page_mapcount(page); - page_assign_page_cgroup(page, NULL); SetPageReserved(page); /* -- GitLab From 7e924aafa4b03ff71de34af8553d9a1ebc86c071 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:08 -0800 Subject: [PATCH 455/923] memcg: mem_cgroup_charge never NULL My memcgroup patch to fix hang with shmem/tmpfs added NULL page handling to mem_cgroup_charge_common. It seemed convenient at the time, but hard to justify now: there's a perfectly appropriate swappage to charge and uncharge instead, this is not on any hot path through shmem_getpage, and no performance hit was observed from the slight extra overhead. So revert that NULL page handling from mem_cgroup_charge_common; and make it clearer by bringing page_cgroup_assign_new_page_cgroup into its body - that was a helper I found more of a hindrance to understanding. Signed-off-by: Hugh Dickins Cc: David Rientjes Acked-by: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 61 +++++++++++++++++-------------------------------- mm/shmem.c | 9 +++++--- 2 files changed, 27 insertions(+), 43 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 9e170d3c71e..83ba13ad31e 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -300,25 +300,6 @@ static void __always_inline unlock_page_cgroup(struct page *page) bit_spin_unlock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); } -/* - * Tie new page_cgroup to struct page under lock_page_cgroup() - * This can fail if the page has been tied to a page_cgroup. - * If success, returns 0. - */ -static int page_cgroup_assign_new_page_cgroup(struct page *page, - struct page_cgroup *pc) -{ - int ret = 0; - - lock_page_cgroup(page); - if (!page_get_page_cgroup(page)) - page_assign_page_cgroup(page, pc); - else /* A page is tied to other pc. */ - ret = 1; - unlock_page_cgroup(page); - return ret; -} - /* * Clear page->page_cgroup member under lock_page_cgroup(). * If given "pc" value is different from one page->page_cgroup, @@ -585,26 +566,24 @@ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm, * with it */ retry: - if (page) { - lock_page_cgroup(page); - pc = page_get_page_cgroup(page); - /* - * The page_cgroup exists and - * the page has already been accounted. - */ - if (pc) { - if (unlikely(!atomic_inc_not_zero(&pc->ref_cnt))) { - /* this page is under being uncharged ? */ - unlock_page_cgroup(page); - cpu_relax(); - goto retry; - } else { - unlock_page_cgroup(page); - goto done; - } + lock_page_cgroup(page); + pc = page_get_page_cgroup(page); + /* + * The page_cgroup exists and + * the page has already been accounted. + */ + if (pc) { + if (unlikely(!atomic_inc_not_zero(&pc->ref_cnt))) { + /* this page is under being uncharged ? */ + unlock_page_cgroup(page); + cpu_relax(); + goto retry; + } else { + unlock_page_cgroup(page); + goto done; } - unlock_page_cgroup(page); } + unlock_page_cgroup(page); pc = kzalloc(sizeof(struct page_cgroup), gfp_mask); if (pc == NULL) @@ -663,7 +642,9 @@ retry: if (ctype == MEM_CGROUP_CHARGE_TYPE_CACHE) pc->flags |= PAGE_CGROUP_FLAG_CACHE; - if (!page || page_cgroup_assign_new_page_cgroup(page, pc)) { + lock_page_cgroup(page); + if (page_get_page_cgroup(page)) { + unlock_page_cgroup(page); /* * Another charge has been added to this page already. * We take lock_page_cgroup(page) again and read @@ -672,10 +653,10 @@ retry: res_counter_uncharge(&mem->res, PAGE_SIZE); css_put(&mem->css); kfree(pc); - if (!page) - goto done; goto retry; } + page_assign_page_cgroup(page, pc); + unlock_page_cgroup(page); mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); diff --git a/mm/shmem.c b/mm/shmem.c index 90b576cbc06..3372bc579e8 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1370,14 +1370,17 @@ repeat: shmem_swp_unmap(entry); spin_unlock(&info->lock); unlock_page(swappage); - page_cache_release(swappage); if (error == -ENOMEM) { /* allow reclaim from this memory cgroup */ - error = mem_cgroup_cache_charge(NULL, + error = mem_cgroup_cache_charge(swappage, current->mm, gfp & ~__GFP_HIGHMEM); - if (error) + if (error) { + page_cache_release(swappage); goto failed; + } + mem_cgroup_uncharge_page(swappage); } + page_cache_release(swappage); goto repeat; } } else if (sgp == SGP_READ && !filepage) { -- GitLab From 8289546e573d5ff681cdf0fc7a1184cca66fdb55 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:08 -0800 Subject: [PATCH 456/923] memcg: remove mem_cgroup_uncharge Nothing uses mem_cgroup_uncharge apart from mem_cgroup_uncharge_page, (a trivial wrapper around it) and mem_cgroup_end_migration (which does the same as mem_cgroup_uncharge_page). And it often ends up having to lock just to let its caller unlock. Remove it (but leave the silly locking until a later patch). Moved mem_cgroup_cache_charge next to mem_cgroup_charge in memcontrol.h. Signed-off-by: Hugh Dickins Cc: David Rientjes Acked-by: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 20 +++++++------------- mm/memcontrol.c | 23 ++++++++--------------- 2 files changed, 15 insertions(+), 28 deletions(-) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 70789df7dab..8b1c4295848 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -35,7 +35,8 @@ extern void mm_free_cgroup(struct mm_struct *mm); extern struct page_cgroup *page_get_page_cgroup(struct page *page); extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); -extern void mem_cgroup_uncharge(struct page_cgroup *pc); +extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, + gfp_t gfp_mask); extern void mem_cgroup_uncharge_page(struct page *page); extern void mem_cgroup_move_lists(struct page *page, bool active); extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, @@ -45,8 +46,6 @@ extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, struct mem_cgroup *mem_cont, int active); extern void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask); -extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, - gfp_t gfp_mask); int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem); #define mm_match_cgroup(mm, cgroup) \ @@ -92,14 +91,16 @@ static inline struct page_cgroup *page_get_page_cgroup(struct page *page) return NULL; } -static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm, - gfp_t gfp_mask) +static inline int mem_cgroup_charge(struct page *page, + struct mm_struct *mm, gfp_t gfp_mask) { return 0; } -static inline void mem_cgroup_uncharge(struct page_cgroup *pc) +static inline int mem_cgroup_cache_charge(struct page *page, + struct mm_struct *mm, gfp_t gfp_mask) { + return 0; } static inline void mem_cgroup_uncharge_page(struct page *page) @@ -110,13 +111,6 @@ static inline void mem_cgroup_move_lists(struct page *page, bool active) { } -static inline int mem_cgroup_cache_charge(struct page *page, - struct mm_struct *mm, - gfp_t gfp_mask) -{ - return 0; -} - static inline int mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *mem) { return 1; diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 83ba13ad31e..1333d25163b 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -697,20 +697,22 @@ int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, /* * Uncharging is always a welcome operation, we never complain, simply - * uncharge. This routine should be called with lock_page_cgroup held + * uncharge. */ -void mem_cgroup_uncharge(struct page_cgroup *pc) +void mem_cgroup_uncharge_page(struct page *page) { + struct page_cgroup *pc; struct mem_cgroup *mem; struct mem_cgroup_per_zone *mz; - struct page *page; unsigned long flags; /* * Check if our page_cgroup is valid */ + lock_page_cgroup(page); + pc = page_get_page_cgroup(page); if (!pc) - return; + goto unlock; if (atomic_dec_and_test(&pc->ref_cnt)) { page = pc->page; @@ -731,12 +733,8 @@ void mem_cgroup_uncharge(struct page_cgroup *pc) } lock_page_cgroup(page); } -} -void mem_cgroup_uncharge_page(struct page *page) -{ - lock_page_cgroup(page); - mem_cgroup_uncharge(page_get_page_cgroup(page)); +unlock: unlock_page_cgroup(page); } @@ -759,12 +757,7 @@ int mem_cgroup_prepare_migration(struct page *page) void mem_cgroup_end_migration(struct page *page) { - struct page_cgroup *pc; - - lock_page_cgroup(page); - pc = page_get_page_cgroup(page); - mem_cgroup_uncharge(pc); - unlock_page_cgroup(page); + mem_cgroup_uncharge_page(page); } /* * We know both *page* and *newpage* are now not-on-LRU and Pg_locked. -- GitLab From 8869b8f6e09a1b49bf915eb03f663f2e4e8fbcd4 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:09 -0800 Subject: [PATCH 457/923] memcg: memcontrol whitespace cleanups Sorry, before getting down to more important changes, I'd like to do some cleanup in memcontrol.c. This patch doesn't change the code generated, but cleans up whitespace, moves up a double declaration, removes an unused enum, removes void returns, removes misleading comments, that kind of thing. Signed-off-by: Hugh Dickins Cc: David Rientjes Cc: Balbir Singh Cc: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 94 +++++++++++++++---------------------------------- 1 file changed, 28 insertions(+), 66 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 1333d25163b..31ab2c014fa 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -137,6 +137,7 @@ struct mem_cgroup { */ struct mem_cgroup_stat stat; }; +static struct mem_cgroup init_mem_cgroup; /* * We use the lower bit of the page->page_cgroup pointer as a bit spin @@ -162,7 +163,7 @@ struct page_cgroup { struct mem_cgroup *mem_cgroup; atomic_t ref_cnt; /* Helpful when pages move b/w */ /* mapped and cached states */ - int flags; + int flags; }; #define PAGE_CGROUP_FLAG_CACHE (0x1) /* charged as cache */ #define PAGE_CGROUP_FLAG_ACTIVE (0x2) /* page is active in this cgroup */ @@ -177,20 +178,11 @@ static inline enum zone_type page_cgroup_zid(struct page_cgroup *pc) return page_zonenum(pc->page); } -enum { - MEM_CGROUP_TYPE_UNSPEC = 0, - MEM_CGROUP_TYPE_MAPPED, - MEM_CGROUP_TYPE_CACHED, - MEM_CGROUP_TYPE_ALL, - MEM_CGROUP_TYPE_MAX, -}; - enum charge_type { MEM_CGROUP_CHARGE_TYPE_CACHE = 0, MEM_CGROUP_CHARGE_TYPE_MAPPED, }; - /* * Always modified under lru lock. Then, not necessary to preempt_disable() */ @@ -199,11 +191,10 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *mem, int flags, { int val = (charge)? 1 : -1; struct mem_cgroup_stat *stat = &mem->stat; - VM_BUG_ON(!irqs_disabled()); + VM_BUG_ON(!irqs_disabled()); if (flags & PAGE_CGROUP_FLAG_CACHE) - __mem_cgroup_stat_add_safe(stat, - MEM_CGROUP_STAT_CACHE, val); + __mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_CACHE, val); else __mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_RSS, val); } @@ -240,8 +231,6 @@ static unsigned long mem_cgroup_get_all_zonestat(struct mem_cgroup *mem, return total; } -static struct mem_cgroup init_mem_cgroup; - static inline struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont) { @@ -273,8 +262,7 @@ void mm_free_cgroup(struct mm_struct *mm) static inline int page_cgroup_locked(struct page *page) { - return bit_spin_is_locked(PAGE_CGROUP_LOCK_BIT, - &page->page_cgroup); + return bit_spin_is_locked(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); } static void page_assign_page_cgroup(struct page *page, struct page_cgroup *pc) @@ -285,8 +273,7 @@ static void page_assign_page_cgroup(struct page *page, struct page_cgroup *pc) struct page_cgroup *page_get_page_cgroup(struct page *page) { - return (struct page_cgroup *) - (page->page_cgroup & ~PAGE_CGROUP_LOCK); + return (struct page_cgroup *) (page->page_cgroup & ~PAGE_CGROUP_LOCK); } static void __always_inline lock_page_cgroup(struct page *page) @@ -308,7 +295,6 @@ static void __always_inline unlock_page_cgroup(struct page *page) * A can can detect failure of clearing by following * clear_page_cgroup(page, pc) == pc */ - static struct page_cgroup *clear_page_cgroup(struct page *page, struct page_cgroup *pc) { @@ -417,6 +403,7 @@ int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem) rss = (long)mem_cgroup_read_stat(&mem->stat, MEM_CGROUP_STAT_RSS); return (int)((rss * 100L) / total); } + /* * This function is called from vmscan.c. In page reclaiming loop. balance * between active and inactive list is calculated. For memory controller @@ -480,7 +467,6 @@ long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem, struct mem_cgroup_per_zone *mz = mem_cgroup_zoneinfo(mem, nid, zid); nr_inactive = MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_INACTIVE); - return (nr_inactive >> priority); } @@ -601,16 +587,11 @@ retry: rcu_read_lock(); mem = rcu_dereference(mm->mem_cgroup); /* - * For every charge from the cgroup, increment reference - * count + * For every charge from the cgroup, increment reference count */ css_get(&mem->css); rcu_read_unlock(); - /* - * If we created the page_cgroup, we should free it on exceeding - * the cgroup limit. - */ while (res_counter_charge(&mem->res, PAGE_SIZE)) { if (!(gfp_mask & __GFP_WAIT)) goto out; @@ -619,12 +600,12 @@ retry: continue; /* - * try_to_free_mem_cgroup_pages() might not give us a full - * picture of reclaim. Some pages are reclaimed and might be - * moved to swap cache or just unmapped from the cgroup. - * Check the limit again to see if the reclaim reduced the - * current usage of the cgroup before giving up - */ + * try_to_free_mem_cgroup_pages() might not give us a full + * picture of reclaim. Some pages are reclaimed and might be + * moved to swap cache or just unmapped from the cgroup. + * Check the limit again to see if the reclaim reduced the + * current usage of the cgroup before giving up + */ if (res_counter_check_under_limit(&mem->res)) continue; @@ -660,7 +641,6 @@ retry: mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); - /* Update statistics vector */ __mem_cgroup_add_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); @@ -673,26 +653,19 @@ err: return -ENOMEM; } -int mem_cgroup_charge(struct page *page, struct mm_struct *mm, - gfp_t gfp_mask) +int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask) { return mem_cgroup_charge_common(page, mm, gfp_mask, - MEM_CGROUP_CHARGE_TYPE_MAPPED); + MEM_CGROUP_CHARGE_TYPE_MAPPED); } -/* - * See if the cached pages should be charged at all? - */ int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask) { - int ret = 0; if (!mm) mm = &init_mm; - - ret = mem_cgroup_charge_common(page, mm, gfp_mask, + return mem_cgroup_charge_common(page, mm, gfp_mask, MEM_CGROUP_CHARGE_TYPE_CACHE); - return ret; } /* @@ -742,11 +715,11 @@ unlock: * Returns non-zero if a page (under migration) has valid page_cgroup member. * Refcnt of page_cgroup is incremented. */ - int mem_cgroup_prepare_migration(struct page *page) { struct page_cgroup *pc; int ret = 0; + lock_page_cgroup(page); pc = page_get_page_cgroup(page); if (pc && atomic_inc_not_zero(&pc->ref_cnt)) @@ -759,28 +732,30 @@ void mem_cgroup_end_migration(struct page *page) { mem_cgroup_uncharge_page(page); } + /* - * We know both *page* and *newpage* are now not-on-LRU and Pg_locked. + * We know both *page* and *newpage* are now not-on-LRU and PG_locked. * And no race with uncharge() routines because page_cgroup for *page* * has extra one reference by mem_cgroup_prepare_migration. */ - void mem_cgroup_page_migration(struct page *page, struct page *newpage) { struct page_cgroup *pc; struct mem_cgroup *mem; unsigned long flags; struct mem_cgroup_per_zone *mz; + retry: pc = page_get_page_cgroup(page); if (!pc) return; + mem = pc->mem_cgroup; mz = page_cgroup_zoneinfo(pc); if (clear_page_cgroup(page, pc) != pc) goto retry; - spin_lock_irqsave(&mz->lru_lock, flags); + spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_remove_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); @@ -793,7 +768,6 @@ retry: spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_add_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); - return; } /* @@ -802,8 +776,7 @@ retry: * *And* this routine doesn't reclaim page itself, just removes page_cgroup. */ #define FORCE_UNCHARGE_BATCH (128) -static void -mem_cgroup_force_empty_list(struct mem_cgroup *mem, +static void mem_cgroup_force_empty_list(struct mem_cgroup *mem, struct mem_cgroup_per_zone *mz, int active) { @@ -837,27 +810,27 @@ retry: } else /* being uncharged ? ...do relax */ break; } + spin_unlock_irqrestore(&mz->lru_lock, flags); if (!list_empty(list)) { cond_resched(); goto retry; } - return; } /* * make mem_cgroup's charge to be 0 if there is no task. * This enables deleting this mem_cgroup. */ - int mem_cgroup_force_empty(struct mem_cgroup *mem) { int ret = -EBUSY; int node, zid; + css_get(&mem->css); /* * page reclaim code (kswapd etc..) will move pages between -` * active_list <-> inactive_list while we don't take a lock. + * active_list <-> inactive_list while we don't take a lock. * So, we have to do loop here until all lists are empty. */ while (mem->res.usage > 0) { @@ -879,8 +852,6 @@ out: return ret; } - - int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp) { *tmp = memparse(buf, &buf); @@ -918,8 +889,7 @@ static ssize_t mem_force_empty_write(struct cgroup *cont, size_t nbytes, loff_t *ppos) { struct mem_cgroup *mem = mem_cgroup_from_cont(cont); - int ret; - ret = mem_cgroup_force_empty(mem); + int ret = mem_cgroup_force_empty(mem); if (!ret) ret = nbytes; return ret; @@ -928,7 +898,6 @@ static ssize_t mem_force_empty_write(struct cgroup *cont, /* * Note: This should be removed if cgroup supports write-only file. */ - static ssize_t mem_force_empty_read(struct cgroup *cont, struct cftype *cft, struct file *file, char __user *userbuf, @@ -937,7 +906,6 @@ static ssize_t mem_force_empty_read(struct cgroup *cont, return -EINVAL; } - static const struct mem_cgroup_stat_desc { const char *msg; u64 unit; @@ -990,8 +958,6 @@ static int mem_control_stat_open(struct inode *unused, struct file *file) return single_open(file, mem_control_stat_show, cont); } - - static struct cftype mem_cgroup_files[] = { { .name = "usage_in_bytes", @@ -1057,9 +1023,6 @@ static void free_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node) kfree(mem->info.nodeinfo[node]); } - -static struct mem_cgroup init_mem_cgroup; - static struct cgroup_subsys_state * mem_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cont) { @@ -1149,7 +1112,6 @@ static void mem_cgroup_move_task(struct cgroup_subsys *ss, out: mmput(mm); - return; } struct cgroup_subsys mem_cgroup_subsys = { -- GitLab From d5b69e38f8cdb1e41cc022305c86c9739bf1ffdb Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:10 -0800 Subject: [PATCH 458/923] memcg: memcontrol uninlined and static More cleanup to memcontrol.c, this time changing some of the code generated. Let the compiler decide what to inline (except for page_cgroup_locked which is only used when CONFIG_DEBUG_VM): the __always_inline on lock_page_cgroup etc. was quite a waste since bit_spin_lock etc. are inlines in a header file; made mem_cgroup_force_empty and mem_cgroup_write_strategy static. Signed-off-by: Hugh Dickins Cc: David Rientjes Cc: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 28 +++++++++++----------------- 1 file changed, 11 insertions(+), 17 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 31ab2c014fa..a59f946c933 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -168,12 +168,12 @@ struct page_cgroup { #define PAGE_CGROUP_FLAG_CACHE (0x1) /* charged as cache */ #define PAGE_CGROUP_FLAG_ACTIVE (0x2) /* page is active in this cgroup */ -static inline int page_cgroup_nid(struct page_cgroup *pc) +static int page_cgroup_nid(struct page_cgroup *pc) { return page_to_nid(pc->page); } -static inline enum zone_type page_cgroup_zid(struct page_cgroup *pc) +static enum zone_type page_cgroup_zid(struct page_cgroup *pc) { return page_zonenum(pc->page); } @@ -199,14 +199,13 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *mem, int flags, __mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_RSS, val); } -static inline struct mem_cgroup_per_zone * +static struct mem_cgroup_per_zone * mem_cgroup_zoneinfo(struct mem_cgroup *mem, int nid, int zid) { - BUG_ON(!mem->info.nodeinfo[nid]); return &mem->info.nodeinfo[nid]->zoneinfo[zid]; } -static inline struct mem_cgroup_per_zone * +static struct mem_cgroup_per_zone * page_cgroup_zoneinfo(struct page_cgroup *pc) { struct mem_cgroup *mem = pc->mem_cgroup; @@ -231,16 +230,14 @@ static unsigned long mem_cgroup_get_all_zonestat(struct mem_cgroup *mem, return total; } -static inline -struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont) +static struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont) { return container_of(cgroup_subsys_state(cont, mem_cgroup_subsys_id), struct mem_cgroup, css); } -static inline -struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p) +static struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p) { return container_of(task_subsys_state(p, mem_cgroup_subsys_id), struct mem_cgroup, css); @@ -276,13 +273,12 @@ struct page_cgroup *page_get_page_cgroup(struct page *page) return (struct page_cgroup *) (page->page_cgroup & ~PAGE_CGROUP_LOCK); } -static void __always_inline lock_page_cgroup(struct page *page) +static void lock_page_cgroup(struct page *page) { bit_spin_lock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); - VM_BUG_ON(!page_cgroup_locked(page)); } -static void __always_inline unlock_page_cgroup(struct page *page) +static void unlock_page_cgroup(struct page *page) { bit_spin_unlock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); } @@ -741,16 +737,14 @@ void mem_cgroup_end_migration(struct page *page) void mem_cgroup_page_migration(struct page *page, struct page *newpage) { struct page_cgroup *pc; - struct mem_cgroup *mem; - unsigned long flags; struct mem_cgroup_per_zone *mz; + unsigned long flags; retry: pc = page_get_page_cgroup(page); if (!pc) return; - mem = pc->mem_cgroup; mz = page_cgroup_zoneinfo(pc); if (clear_page_cgroup(page, pc) != pc) goto retry; @@ -822,7 +816,7 @@ retry: * make mem_cgroup's charge to be 0 if there is no task. * This enables deleting this mem_cgroup. */ -int mem_cgroup_force_empty(struct mem_cgroup *mem) +static int mem_cgroup_force_empty(struct mem_cgroup *mem) { int ret = -EBUSY; int node, zid; @@ -852,7 +846,7 @@ out: return ret; } -int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp) +static int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp) { *tmp = memparse(buf, &buf); if (*buf != '\0') -- GitLab From b9c565d5a29a795f970b4a1340393d8fc6722fb9 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:11 -0800 Subject: [PATCH 459/923] memcg: remove clear_page_cgroup and atomics Remove clear_page_cgroup: it's an unhelpful helper, see for example how mem_cgroup_uncharge_page had to unlock_page_cgroup just in order to call it (serious races from that? I'm not sure). Once that's gone, you can see it's pointless for page_cgroup's ref_cnt to be atomic: it's always manipulated under lock_page_cgroup, except where force_empty unilaterally reset it to 0 (and how does uncharge's atomic_dec_and_test protect against that?). Simplify this page_cgroup locking: if you've got the lock and the pc is attached, then the ref_cnt must be positive: VM_BUG_ONs to check that, and to check that pc->page matches page (we're on the way to finding why sometimes it doesn't, but this patch doesn't fix that). Signed-off-by: Hugh Dickins Cc: David Rientjes Cc: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 106 ++++++++++++++++++++---------------------------- 1 file changed, 43 insertions(+), 63 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index a59f946c933..13e9e7d8e49 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -161,8 +161,7 @@ struct page_cgroup { struct list_head lru; /* per cgroup LRU list */ struct page *page; struct mem_cgroup *mem_cgroup; - atomic_t ref_cnt; /* Helpful when pages move b/w */ - /* mapped and cached states */ + int ref_cnt; /* cached, mapped, migrating */ int flags; }; #define PAGE_CGROUP_FLAG_CACHE (0x1) /* charged as cache */ @@ -283,27 +282,6 @@ static void unlock_page_cgroup(struct page *page) bit_spin_unlock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); } -/* - * Clear page->page_cgroup member under lock_page_cgroup(). - * If given "pc" value is different from one page->page_cgroup, - * page->cgroup is not cleared. - * Returns a value of page->page_cgroup at lock taken. - * A can can detect failure of clearing by following - * clear_page_cgroup(page, pc) == pc - */ -static struct page_cgroup *clear_page_cgroup(struct page *page, - struct page_cgroup *pc) -{ - struct page_cgroup *ret; - /* lock and clear */ - lock_page_cgroup(page); - ret = page_get_page_cgroup(page); - if (likely(ret == pc)) - page_assign_page_cgroup(page, NULL); - unlock_page_cgroup(page); - return ret; -} - static void __mem_cgroup_remove_list(struct page_cgroup *pc) { int from = pc->flags & PAGE_CGROUP_FLAG_ACTIVE; @@ -555,15 +533,12 @@ retry: * the page has already been accounted. */ if (pc) { - if (unlikely(!atomic_inc_not_zero(&pc->ref_cnt))) { - /* this page is under being uncharged ? */ - unlock_page_cgroup(page); - cpu_relax(); - goto retry; - } else { - unlock_page_cgroup(page); - goto done; - } + VM_BUG_ON(pc->page != page); + VM_BUG_ON(pc->ref_cnt <= 0); + + pc->ref_cnt++; + unlock_page_cgroup(page); + goto done; } unlock_page_cgroup(page); @@ -612,7 +587,7 @@ retry: congestion_wait(WRITE, HZ/10); } - atomic_set(&pc->ref_cnt, 1); + pc->ref_cnt = 1; pc->mem_cgroup = mem; pc->page = page; pc->flags = PAGE_CGROUP_FLAG_ACTIVE; @@ -683,24 +658,24 @@ void mem_cgroup_uncharge_page(struct page *page) if (!pc) goto unlock; - if (atomic_dec_and_test(&pc->ref_cnt)) { - page = pc->page; - mz = page_cgroup_zoneinfo(pc); - /* - * get page->cgroup and clear it under lock. - * force_empty can drop page->cgroup without checking refcnt. - */ + VM_BUG_ON(pc->page != page); + VM_BUG_ON(pc->ref_cnt <= 0); + + if (--(pc->ref_cnt) == 0) { + page_assign_page_cgroup(page, NULL); unlock_page_cgroup(page); - if (clear_page_cgroup(page, pc) == pc) { - mem = pc->mem_cgroup; - css_put(&mem->css); - res_counter_uncharge(&mem->res, PAGE_SIZE); - spin_lock_irqsave(&mz->lru_lock, flags); - __mem_cgroup_remove_list(pc); - spin_unlock_irqrestore(&mz->lru_lock, flags); - kfree(pc); - } - lock_page_cgroup(page); + + mem = pc->mem_cgroup; + css_put(&mem->css); + res_counter_uncharge(&mem->res, PAGE_SIZE); + + mz = page_cgroup_zoneinfo(pc); + spin_lock_irqsave(&mz->lru_lock, flags); + __mem_cgroup_remove_list(pc); + spin_unlock_irqrestore(&mz->lru_lock, flags); + + kfree(pc); + return; } unlock: @@ -714,14 +689,13 @@ unlock: int mem_cgroup_prepare_migration(struct page *page) { struct page_cgroup *pc; - int ret = 0; lock_page_cgroup(page); pc = page_get_page_cgroup(page); - if (pc && atomic_inc_not_zero(&pc->ref_cnt)) - ret = 1; + if (pc) + pc->ref_cnt++; unlock_page_cgroup(page); - return ret; + return pc != NULL; } void mem_cgroup_end_migration(struct page *page) @@ -740,15 +714,17 @@ void mem_cgroup_page_migration(struct page *page, struct page *newpage) struct mem_cgroup_per_zone *mz; unsigned long flags; -retry: + lock_page_cgroup(page); pc = page_get_page_cgroup(page); - if (!pc) + if (!pc) { + unlock_page_cgroup(page); return; + } - mz = page_cgroup_zoneinfo(pc); - if (clear_page_cgroup(page, pc) != pc) - goto retry; + page_assign_page_cgroup(page, NULL); + unlock_page_cgroup(page); + mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_remove_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); @@ -794,15 +770,19 @@ retry: while (--count && !list_empty(list)) { pc = list_entry(list->prev, struct page_cgroup, lru); page = pc->page; - /* Avoid race with charge */ - atomic_set(&pc->ref_cnt, 0); - if (clear_page_cgroup(page, pc) == pc) { + lock_page_cgroup(page); + if (page_get_page_cgroup(page) == pc) { + page_assign_page_cgroup(page, NULL); + unlock_page_cgroup(page); css_put(&mem->css); res_counter_uncharge(&mem->res, PAGE_SIZE); __mem_cgroup_remove_list(pc); kfree(pc); - } else /* being uncharged ? ...do relax */ + } else { + /* racing uncharge: let page go then retry */ + unlock_page_cgroup(page); break; + } } spin_unlock_irqrestore(&mz->lru_lock, flags); -- GitLab From 6d48ff8bcfd403ec8d3ef7a56538ea9e6f773b9c Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:12 -0800 Subject: [PATCH 460/923] memcg: css_put after remove_list mem_cgroup_uncharge_page does css_put on the mem_cgroup before uncharging from it, and before removing page_cgroup from one of its lru lists: isn't there a danger that struct mem_cgroup memory could be freed and reused before completing that, so corrupting something? Never seen it, and for all I know there may be other constraints which make it impossible; but let's be defensive and reverse the ordering there. mem_cgroup_force_empty_list is safe because there's an extra css_get around all its works; but even so, change its ordering the same way round, to help get in the habit of doing it like this. Signed-off-by: Hugh Dickins Cc: David Rientjes Cc: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 13e9e7d8e49..66d0e84cefa 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -665,15 +665,15 @@ void mem_cgroup_uncharge_page(struct page *page) page_assign_page_cgroup(page, NULL); unlock_page_cgroup(page); - mem = pc->mem_cgroup; - css_put(&mem->css); - res_counter_uncharge(&mem->res, PAGE_SIZE); - mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_remove_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); + mem = pc->mem_cgroup; + res_counter_uncharge(&mem->res, PAGE_SIZE); + css_put(&mem->css); + kfree(pc); return; } @@ -774,9 +774,9 @@ retry: if (page_get_page_cgroup(page) == pc) { page_assign_page_cgroup(page, NULL); unlock_page_cgroup(page); - css_put(&mem->css); - res_counter_uncharge(&mem->res, PAGE_SIZE); __mem_cgroup_remove_list(pc); + res_counter_uncharge(&mem->res, PAGE_SIZE); + css_put(&mem->css); kfree(pc); } else { /* racing uncharge: let page go then retry */ -- GitLab From 2680eed723b664d83e6181ae275fac0ec8fa05ff Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:13 -0800 Subject: [PATCH 461/923] memcg: fix mem_cgroup_move_lists locking Ever since the VM_BUG_ON(page_get_page_cgroup(page)) (now Bad page state) went into page freeing, I've hit it from time to time in testing on some machines, sometimes only after many days. Recently found a machine which could usually produce it within a few hours, which got me there at last. The culprit is mem_cgroup_move_lists, whose locking is inadequate; and the arrangement of structures was such that you got page_cgroups from the lru list neatly put on to SLUB's freelist. Kamezawa-san identified the same hole independently. The main problem was that it was missing the lock_page_cgroup it needs to safely page_get_page_cgroup; but it's tricky to go beyond that too, and I couldn't do it with SLAB_DESTROY_BY_RCU as I'd expected. See the code for comments on the constraints. This patch immediately gets replaced by a simpler one from Hirokazu-san; but is it just foolish pride that tells me to put this one on record, in case we need to come back to it later? Signed-off-by: Hugh Dickins Cc: David Rientjes Cc: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 49 +++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 43 insertions(+), 6 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 66d0e84cefa..dcbe30aad1d 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -277,6 +277,11 @@ static void lock_page_cgroup(struct page *page) bit_spin_lock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); } +static int try_lock_page_cgroup(struct page *page) +{ + return bit_spin_trylock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); +} + static void unlock_page_cgroup(struct page *page) { bit_spin_unlock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); @@ -348,17 +353,49 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem) void mem_cgroup_move_lists(struct page *page, bool active) { struct page_cgroup *pc; + struct mem_cgroup *mem; struct mem_cgroup_per_zone *mz; unsigned long flags; - pc = page_get_page_cgroup(page); - if (!pc) + /* + * We cannot lock_page_cgroup while holding zone's lru_lock, + * because other holders of lock_page_cgroup can be interrupted + * with an attempt to rotate_reclaimable_page. But we cannot + * safely get to page_cgroup without it, so just try_lock it: + * mem_cgroup_isolate_pages allows for page left on wrong list. + */ + if (!try_lock_page_cgroup(page)) return; - mz = page_cgroup_zoneinfo(pc); - spin_lock_irqsave(&mz->lru_lock, flags); - __mem_cgroup_move_lists(pc, active); - spin_unlock_irqrestore(&mz->lru_lock, flags); + /* + * Now page_cgroup is stable, but we cannot acquire mz->lru_lock + * while holding it, because mem_cgroup_force_empty_list does the + * reverse. Get a hold on the mem_cgroup before unlocking, so that + * the zoneinfo remains stable, then take mz->lru_lock; then check + * that page still points to pc and pc (even if freed and reassigned + * to that same page meanwhile) still points to the same mem_cgroup. + * Then we know mz still points to the right spinlock, so it's safe + * to move_lists (page->page_cgroup might be reset while we do so, but + * that doesn't matter: pc->page is stable till we drop mz->lru_lock). + * We're being a little naughty not to try_lock_page_cgroup again + * inside there, but we are safe, aren't we? Aren't we? Whistle... + */ + pc = page_get_page_cgroup(page); + if (pc) { + mem = pc->mem_cgroup; + mz = page_cgroup_zoneinfo(pc); + css_get(&mem->css); + + unlock_page_cgroup(page); + + spin_lock_irqsave(&mz->lru_lock, flags); + if (page_get_page_cgroup(page) == pc && pc->mem_cgroup == mem) + __mem_cgroup_move_lists(pc, active); + spin_unlock_irqrestore(&mz->lru_lock, flags); + + css_put(&mem->css); + } else + unlock_page_cgroup(page); } /* -- GitLab From 9b3c0a07e0fca35e36751680de3e4c76dbff5df3 Mon Sep 17 00:00:00 2001 From: Hirokazu Takahashi Date: Tue, 4 Mar 2008 14:29:15 -0800 Subject: [PATCH 462/923] memcg: simplify force_empty and move_lists As for force_empty, though this may not be the main topic here, mem_cgroup_force_empty_list() can be implemented simpler. It is possible to make the function just call mem_cgroup_uncharge_page() instead of releasing page_cgroups by itself. The tip is to call get_page() before invoking mem_cgroup_uncharge_page(), so the page won't be released during this function. Kamezawa-san points out that by the time mem_cgroup_uncharge_page() uncharges, the page might have been reassigned to an lru of a different mem_cgroup, and now be emptied from that; but Hugh claims that's okay, the end state is the same as when it hasn't gone to another list. And once force_empty stops taking lock_page_cgroup within mz->lru_lock, mem_cgroup_move_lists() can be simplified to take mz->lru_lock directly while holding page_cgroup lock (but still has to use try_lock_page_cgroup). Signed-off-by: Hirokazu Takahashi Signed-off-by: Hugh Dickins Cc: David Rientjes Cc: Balbir Singh Cc: KAMEZAWA Hiroyuki Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 62 +++++++++++-------------------------------------- 1 file changed, 13 insertions(+), 49 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index dcbe30aad1d..f72067094e0 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -353,7 +353,6 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem) void mem_cgroup_move_lists(struct page *page, bool active) { struct page_cgroup *pc; - struct mem_cgroup *mem; struct mem_cgroup_per_zone *mz; unsigned long flags; @@ -367,35 +366,14 @@ void mem_cgroup_move_lists(struct page *page, bool active) if (!try_lock_page_cgroup(page)) return; - /* - * Now page_cgroup is stable, but we cannot acquire mz->lru_lock - * while holding it, because mem_cgroup_force_empty_list does the - * reverse. Get a hold on the mem_cgroup before unlocking, so that - * the zoneinfo remains stable, then take mz->lru_lock; then check - * that page still points to pc and pc (even if freed and reassigned - * to that same page meanwhile) still points to the same mem_cgroup. - * Then we know mz still points to the right spinlock, so it's safe - * to move_lists (page->page_cgroup might be reset while we do so, but - * that doesn't matter: pc->page is stable till we drop mz->lru_lock). - * We're being a little naughty not to try_lock_page_cgroup again - * inside there, but we are safe, aren't we? Aren't we? Whistle... - */ pc = page_get_page_cgroup(page); if (pc) { - mem = pc->mem_cgroup; mz = page_cgroup_zoneinfo(pc); - css_get(&mem->css); - - unlock_page_cgroup(page); - spin_lock_irqsave(&mz->lru_lock, flags); - if (page_get_page_cgroup(page) == pc && pc->mem_cgroup == mem) - __mem_cgroup_move_lists(pc, active); + __mem_cgroup_move_lists(pc, active); spin_unlock_irqrestore(&mz->lru_lock, flags); - - css_put(&mem->css); - } else - unlock_page_cgroup(page); + } + unlock_page_cgroup(page); } /* @@ -789,7 +767,7 @@ static void mem_cgroup_force_empty_list(struct mem_cgroup *mem, { struct page_cgroup *pc; struct page *page; - int count; + int count = FORCE_UNCHARGE_BATCH; unsigned long flags; struct list_head *list; @@ -798,35 +776,21 @@ static void mem_cgroup_force_empty_list(struct mem_cgroup *mem, else list = &mz->inactive_list; - if (list_empty(list)) - return; -retry: - count = FORCE_UNCHARGE_BATCH; spin_lock_irqsave(&mz->lru_lock, flags); - - while (--count && !list_empty(list)) { + while (!list_empty(list)) { pc = list_entry(list->prev, struct page_cgroup, lru); page = pc->page; - lock_page_cgroup(page); - if (page_get_page_cgroup(page) == pc) { - page_assign_page_cgroup(page, NULL); - unlock_page_cgroup(page); - __mem_cgroup_remove_list(pc); - res_counter_uncharge(&mem->res, PAGE_SIZE); - css_put(&mem->css); - kfree(pc); - } else { - /* racing uncharge: let page go then retry */ - unlock_page_cgroup(page); - break; + get_page(page); + spin_unlock_irqrestore(&mz->lru_lock, flags); + mem_cgroup_uncharge_page(page); + put_page(page); + if (--count <= 0) { + count = FORCE_UNCHARGE_BATCH; + cond_resched(); } + spin_lock_irqsave(&mz->lru_lock, flags); } - spin_unlock_irqrestore(&mz->lru_lock, flags); - if (!list_empty(list)) { - cond_resched(); - goto retry; - } } /* -- GitLab From fb59e9f1e9786635ea12e12bf6adbb132e10f979 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:16 -0800 Subject: [PATCH 463/923] memcg: fix oops on NULL lru list While testing force_empty, during an exit_mmap, __mem_cgroup_remove_list called from mem_cgroup_uncharge_page oopsed on a NULL pointer in the lru list. I couldn't see what racing tasks on other cpus were doing, but surmise that another must have been in mem_cgroup_charge_common on the same page, between its unlock_page_cgroup and spin_lock_irqsave near done (thanks to that kzalloc which I'd almost changed to a kmalloc). Normally such a race cannot happen, the ref_cnt prevents it, the final uncharge cannot race with the initial charge. But force_empty buggers the ref_cnt, that's what it's all about; and thereafter forced pages are vulnerable to races such as this (just think of a shared page also mapped into an mm of another mem_cgroup than that just emptied). And remain vulnerable until they're freed indefinitely later. This patch just fixes the oops by moving the unlock_page_cgroups down below adding to and removing from the list (only possible given the previous patch); and while we're at it, we might as well make it an invariant that page->page_cgroup is always set while pc is on lru. But this behaviour of force_empty seems highly unsatisfactory to me: why have a ref_cnt if we always have to cope with it being violated (as in the earlier page migration patch). We may prefer force_empty to move pages to an orphan mem_cgroup (could be the root, but better not), from which other cgroups could recover them; we might need to reverse the locking again; but no time now for such concerns. Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index f72067094e0..8b9f6cae938 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -623,13 +623,13 @@ retry: goto retry; } page_assign_page_cgroup(page, pc); - unlock_page_cgroup(page); mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_add_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); + unlock_page_cgroup(page); done: return 0; out: @@ -677,14 +677,14 @@ void mem_cgroup_uncharge_page(struct page *page) VM_BUG_ON(pc->ref_cnt <= 0); if (--(pc->ref_cnt) == 0) { - page_assign_page_cgroup(page, NULL); - unlock_page_cgroup(page); - mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_remove_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); + page_assign_page_cgroup(page, NULL); + unlock_page_cgroup(page); + mem = pc->mem_cgroup; res_counter_uncharge(&mem->res, PAGE_SIZE); css_put(&mem->css); @@ -736,23 +736,24 @@ void mem_cgroup_page_migration(struct page *page, struct page *newpage) return; } - page_assign_page_cgroup(page, NULL); - unlock_page_cgroup(page); - mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_remove_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); + page_assign_page_cgroup(page, NULL); + unlock_page_cgroup(page); + pc->page = newpage; lock_page_cgroup(newpage); page_assign_page_cgroup(newpage, pc); - unlock_page_cgroup(newpage); mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_add_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); + + unlock_page_cgroup(newpage); } /* -- GitLab From 07fb6f26bab869fc3bb9df0a785ba734f4c51ac3 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 4 Mar 2008 14:29:17 -0800 Subject: [PATCH 464/923] drivers/char/isicom.c: correct use of ! and & In commit e6bafba5b4765a5a252f1b8d31cbf6d2459da337 ("wmi: (!x & y) strikes again"), a bug was fixed that involved converting !x & y to !(x & y). The code below shows the same pattern, and thus should perhaps be fixed in the same way. This is not tested and clearly changes the semantics, so it is only something to consider. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ expression E1,E2; @@ ( !E1 & !E2 | - !E1 & E2 + !(E1 & E2) ) // Signed-off-by: Julia Lawall Cc: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/isicom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index 85d596a3c18..eba2883b630 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -1527,7 +1527,7 @@ static int __devinit reset_card(struct pci_dev *pdev, msleep(10); portcount = inw(base + 0x2); - if (!inw(base + 0xe) & 0x1 || (portcount != 0 && portcount != 4 && + if (!(inw(base + 0xe) & 0x1) || (portcount != 0 && portcount != 4 && portcount != 8 && portcount != 16)) { dev_err(&pdev->dev, "ISILoad:PCI Card%d reset failure.\n", card + 1); -- GitLab From ae91d60ba88ef0bdb1b5e9b2363bd52fc45d2af7 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 4 Mar 2008 14:29:18 -0800 Subject: [PATCH 465/923] drivers/isdn: correct use of ! and & In commit e6bafba5b4765a5a252f1b8d31cbf6d2459da337 ("wmi: (!x & y) strikes again"), a bug was fixed that involved converting !x & y to !(x & y). The code below shows the same pattern, and thus should perhaps be fixed in the same way. This is not tested and clearly changes the semantics, so it is only something to consider. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ expression E1,E2; @@ ( !E1 & !E2 | - !E1 & E2 + !(E1 & E2) ) // Signed-off-by: Julia Lawall Cc: Karsten Keil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/i4l/isdn_ttyfax.c | 3 ++- drivers/isdn/isdnloop/isdnloop.c | 6 +++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/isdn/i4l/isdn_ttyfax.c b/drivers/isdn/i4l/isdn_ttyfax.c index f93de4a3035..78f7660c1d0 100644 --- a/drivers/isdn/i4l/isdn_ttyfax.c +++ b/drivers/isdn/i4l/isdn_ttyfax.c @@ -906,7 +906,8 @@ isdn_tty_cmd_FCLASS2(char **p, modem_info * info) sprintf(rs, "\r\n0-2"); isdn_tty_at_cout(rs, info); } else { - if ((f->phase != ISDN_FAX_PHASE_D) || (!info->faxonline & 1)) + if ((f->phase != ISDN_FAX_PHASE_D) || + (!(info->faxonline & 1))) PARSE_ERROR1; par = isdn_getnum(p); if ((par < 0) || (par > 2)) diff --git a/drivers/isdn/isdnloop/isdnloop.c b/drivers/isdn/isdnloop/isdnloop.c index 655ef9a3f4d..a335c85a736 100644 --- a/drivers/isdn/isdnloop/isdnloop.c +++ b/drivers/isdn/isdnloop/isdnloop.c @@ -1289,7 +1289,7 @@ isdnloop_command(isdn_ctrl * c, isdnloop_card * card) } break; case ISDN_CMD_CLREAZ: - if (!card->flags & ISDNLOOP_FLAGS_RUNNING) + if (!(card->flags & ISDNLOOP_FLAGS_RUNNING)) return -ENODEV; if (card->leased) break; @@ -1333,7 +1333,7 @@ isdnloop_command(isdn_ctrl * c, isdnloop_card * card) } break; case ISDN_CMD_SETL3: - if (!card->flags & ISDNLOOP_FLAGS_RUNNING) + if (!(card->flags & ISDNLOOP_FLAGS_RUNNING)) return -ENODEV; return 0; default: @@ -1380,7 +1380,7 @@ if_writecmd(const u_char __user *buf, int len, int id, int channel) isdnloop_card *card = isdnloop_findcard(id); if (card) { - if (!card->flags & ISDNLOOP_FLAGS_RUNNING) + if (!(card->flags & ISDNLOOP_FLAGS_RUNNING)) return -ENODEV; return (isdnloop_writecmd(buf, len, 1, card)); } -- GitLab From 022d917d9621ee79e6f6782fbddd582b8f941024 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 4 Mar 2008 14:29:19 -0800 Subject: [PATCH 466/923] drivers/serial/m32r_sio.c: correct use of ! and & In commit e6bafba5b4765a5a252f1b8d31cbf6d2459da337 ("wmi: (!x & y) strikes again"), a bug was fixed that involved converting !x & y to !(x & y). The code below shows the same pattern, and thus should perhaps be fixed in the same way. This is not tested and clearly changes the semantics, so it is only something to consider. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ expression E1,E2; @@ ( !E1 & !E2 | - !E1 & E2 + !(E1 & E2) ) // Signed-off-by: Julia Lawall Cc: Hirokazu Takata Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/serial/m32r_sio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/serial/m32r_sio.c b/drivers/serial/m32r_sio.c index 348ee2c19b5..c2bb11c02bd 100644 --- a/drivers/serial/m32r_sio.c +++ b/drivers/serial/m32r_sio.c @@ -421,7 +421,7 @@ static void transmit_chars(struct uart_sio_port *up) up->port.icount.tx++; if (uart_circ_empty(xmit)) break; - while (!serial_in(up, UART_LSR) & UART_LSR_THRE); + while (!(serial_in(up, UART_LSR) & UART_LSR_THRE)); } while (--count > 0); -- GitLab From acc1f3ede977bf189b332874beeadf48c01544c5 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 4 Mar 2008 14:29:20 -0800 Subject: [PATCH 467/923] fs/reiserfs/super.c: correct use of ! and & In commit e6bafba5b4765a5a252f1b8d31cbf6d2459da337 ("wmi: (!x & y) strikes again"), a bug was fixed that involved converting !x & y to !(x & y). The code below shows the same pattern, and thus should perhaps be fixed in the same way. This is not tested and clearly changes the semantics, so it is only something to consider. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ expression E1,E2; @@ ( !E1 & !E2 | - !E1 & E2 + !(E1 & E2) ) // Signed-off-by: Julia Lawall Cc: Chris Mason Cc: Jeff Mahoney Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/reiserfs/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 6841452e0de..393cc22c171 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -2031,7 +2031,7 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, return -EXDEV; } /* We must not pack tails for quota files on reiserfs for quota IO to work */ - if (!REISERFS_I(nd.path.dentry->d_inode)->i_flags & i_nopack_mask) { + if (!(REISERFS_I(nd.path.dentry->d_inode)->i_flags & i_nopack_mask)) { reiserfs_warning(sb, "reiserfs: Quota file must have tail packing disabled."); path_put(&nd.path); -- GitLab From cee47f5a32a1b5a1c8b148e738249946e3fedb95 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Tue, 4 Mar 2008 14:29:21 -0800 Subject: [PATCH 468/923] ACPI: thinkpad-acpi: fix hotkey_get_tablet_mode I used the wrong return convention on hotkey_get_tablet_mode(), breaking a lot of stuff. Bad Henrique! Fix it to return the status in the parameter-by-reference, and IO status on the function return value. Duh. Signed-off-by: Henrique de Moraes Holschuh Cc: Zdenek Kabelac Cc: "Rafael J. Wysocki" Cc: Lukas Hejtmanek Cc: Len Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/thinkpad_acpi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c index bb269d0c677..6cb781262f9 100644 --- a/drivers/misc/thinkpad_acpi.c +++ b/drivers/misc/thinkpad_acpi.c @@ -1078,7 +1078,8 @@ static int hotkey_get_tablet_mode(int *status) if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) return -EIO; - return ((s & TP_HOTKEY_TABLET_MASK) != 0); + *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); + return 0; } /* -- GitLab From 07f2402b4adbcd0e6822ddc27953b63d4504faec Mon Sep 17 00:00:00 2001 From: Jesper Nilsson Date: Tue, 4 Mar 2008 14:29:23 -0800 Subject: [PATCH 469/923] cris: correct usage of __user for copy to and from user space in lib/usercopy and uaccess.h Function __copy_user_zeroing in arch/lib/usercopy.c had the wrong parameter set as __user, and in include/asm-cris/uaccess.h, it was not set at all for some of the calling functions. This will cut the number of warnings quite dramatically when using sparse. While we're here, remove useless CVS log and correct confusing typo. Signed-off-by: Jesper Nilsson Cc: Mikael Starvik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/cris/arch-v10/lib/usercopy.c | 2 +- arch/cris/arch-v32/lib/usercopy.c | 2 +- include/asm-cris/uaccess.h | 53 ++++++------------------------- 3 files changed, 11 insertions(+), 46 deletions(-) diff --git a/arch/cris/arch-v10/lib/usercopy.c b/arch/cris/arch-v10/lib/usercopy.c index b8e6c0430e5..b0a608da7bd 100644 --- a/arch/cris/arch-v10/lib/usercopy.c +++ b/arch/cris/arch-v10/lib/usercopy.c @@ -193,7 +193,7 @@ __copy_user (void __user *pdst, const void *psrc, unsigned long pn) inaccessible. */ unsigned long -__copy_user_zeroing (void __user *pdst, const void *psrc, unsigned long pn) +__copy_user_zeroing(void *pdst, const void __user *psrc, unsigned long pn) { /* We want the parameters put in special registers. Make sure the compiler is able to make something useful of this. diff --git a/arch/cris/arch-v32/lib/usercopy.c b/arch/cris/arch-v32/lib/usercopy.c index 04d0cf35a27..0b5b70d5f58 100644 --- a/arch/cris/arch-v32/lib/usercopy.c +++ b/arch/cris/arch-v32/lib/usercopy.c @@ -161,7 +161,7 @@ __copy_user (void __user *pdst, const void *psrc, unsigned long pn) inaccessible. */ unsigned long -__copy_user_zeroing (void __user *pdst, const void *psrc, unsigned long pn) +__copy_user_zeroing(void *pdst, const void __user *psrc, unsigned long pn) { /* We want the parameters put in special registers. Make sure the compiler is able to make something useful of this. diff --git a/include/asm-cris/uaccess.h b/include/asm-cris/uaccess.h index 69d48a2dc8e..ea11eaf0e92 100644 --- a/include/asm-cris/uaccess.h +++ b/include/asm-cris/uaccess.h @@ -1,43 +1,6 @@ /* * Authors: Bjorn Wesen (bjornw@axis.com) * Hans-Peter Nilsson (hp@axis.com) - * - * $Log: uaccess.h,v $ - * Revision 1.8 2001/10/29 13:01:48 bjornw - * Removed unused variable tmp2 in strnlen_user - * - * Revision 1.7 2001/10/02 12:44:52 hp - * Add support for 64-bit put_user/get_user - * - * Revision 1.6 2001/10/01 14:51:17 bjornw - * Added register prefixes and removed underscores - * - * Revision 1.5 2000/10/25 03:33:21 hp - * - Provide implementation for everything else but get_user and put_user; - * copying inline to/from user for constant length 0..16, 20, 24, and - * clearing for 0..4, 8, 12, 16, 20, 24, strncpy_from_user and strnlen_user - * always inline. - * - Constraints for destination addr in get_user cannot be memory, only reg. - * - Correct labels for PC at expected fault points. - * - Nits with assembly code. - * - Don't use statement expressions without value; use "do {} while (0)". - * - Return correct values from __generic_... functions. - * - * Revision 1.4 2000/09/12 16:28:25 bjornw - * * Removed comments from the get/put user asm code - * * Constrains for destination addr in put_user cannot be memory, only reg - * - * Revision 1.3 2000/09/12 14:30:20 bjornw - * MAX_ADDR_USER does not exist anymore - * - * Revision 1.2 2000/07/13 15:52:48 bjornw - * New user-access functions - * - * Revision 1.1.1.1 2000/07/10 16:32:31 bjornw - * CRIS architecture, working draft - * - * - * */ /* Asm:s have been tweaked (within the domain of correctness) to give @@ -209,9 +172,9 @@ extern long __get_user_bad(void); /* More complex functions. Most are inline, but some call functions that live in lib/usercopy.c */ -extern unsigned long __copy_user(void *to, const void *from, unsigned long n); -extern unsigned long __copy_user_zeroing(void *to, const void *from, unsigned long n); -extern unsigned long __do_clear_user(void *to, unsigned long n); +extern unsigned long __copy_user(void __user *to, const void *from, unsigned long n); +extern unsigned long __copy_user_zeroing(void *to, const void __user *from, unsigned long n); +extern unsigned long __do_clear_user(void __user *to, unsigned long n); static inline unsigned long __generic_copy_to_user(void __user *to, const void *from, unsigned long n) @@ -253,7 +216,7 @@ strncpy_from_user(char *dst, const char __user *src, long count) } -/* Note that if these expand awfully if made into switch constructs, so +/* Note that these expand awfully if made into switch constructs, so don't do that. */ static inline unsigned long @@ -407,19 +370,21 @@ __constant_clear_user(void __user *to, unsigned long n) */ static inline unsigned long -__generic_copy_from_user_nocheck(void *to, const void *from, unsigned long n) +__generic_copy_from_user_nocheck(void *to, const void __user *from, + unsigned long n) { return __copy_user_zeroing(to,from,n); } static inline unsigned long -__generic_copy_to_user_nocheck(void *to, const void *from, unsigned long n) +__generic_copy_to_user_nocheck(void __user *to, const void *from, + unsigned long n) { return __copy_user(to,from,n); } static inline unsigned long -__generic_clear_user_nocheck(void *to, unsigned long n) +__generic_clear_user_nocheck(void __user *to, unsigned long n) { return __do_clear_user(to,n); } -- GitLab From 87ffbe679e21cbf82ff8e3302520ff0ea2beed9a Mon Sep 17 00:00:00 2001 From: Jesper Nilsson Date: Tue, 4 Mar 2008 14:29:23 -0800 Subject: [PATCH 470/923] cris: correct syscall numbers in unistd.h for timerfd_settime and timerfd_gettime Last commit for unistd was not correct, it only had a partial update of syscall numbers for __NR_timerfd_settime and __NR_timerfd_gettime. Also, NR_syscalls was not incremented for the new syscalls. Signed-off-by: Jesper Nilsson Cc: Mikael Starvik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-cris/unistd.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h index 007cb16a6b5..76398ef87e9 100644 --- a/include/asm-cris/unistd.h +++ b/include/asm-cris/unistd.h @@ -329,12 +329,12 @@ #define __NR_timerfd_create 322 #define __NR_eventfd 323 #define __NR_fallocate 324 -#define __NR_timerfd_settime 315 -#define __NR_timerfd_gettime 316 +#define __NR_timerfd_settime 325 +#define __NR_timerfd_gettime 326 #ifdef __KERNEL__ -#define NR_syscalls 325 +#define NR_syscalls 327 #include -- GitLab From e4465fdaeb3f7b5ef47f389d3eac76db79ff20d8 Mon Sep 17 00:00:00 2001 From: Michael Halcrow Date: Tue, 4 Mar 2008 14:29:24 -0800 Subject: [PATCH 471/923] eCryptfs: make ecryptfs_prepare_write decrypt the page When the page is not up to date, ecryptfs_prepare_write() should be acting much like ecryptfs_readpage(). This includes the painfully obvious step of actually decrypting the page contents read from the lower encrypted file. Note that this patch resolves a bug in eCryptfs in 2.6.24 that one can produce with these steps: # mount -t ecryptfs /secret /secret # echo "abc" > /secret/file.txt # umount /secret # mount -t ecryptfs /secret /secret # echo "def" >> /secret/file.txt # cat /secret/file.txt Without this patch, the resulting data returned from cat is likely to be something other than "abc\ndef\n". (Thanks to Benedikt Driessen for reporting this.) Signed-off-by: Michael Halcrow Cc: Benedikt Driessen Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ecryptfs/mmap.c | 102 +++++++++++++++++++++++++++++++++------------ 1 file changed, 76 insertions(+), 26 deletions(-) diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index dc74b186145..6df1debdccc 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c @@ -263,52 +263,102 @@ out: return 0; } -/* This function must zero any hole we create */ +/** + * ecryptfs_prepare_write + * @file: The eCryptfs file + * @page: The eCryptfs page + * @from: The start byte from which we will write + * @to: The end byte to which we will write + * + * This function must zero any hole we create + * + * Returns zero on success; non-zero otherwise + */ static int ecryptfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to) { - int rc = 0; loff_t prev_page_end_size; + int rc = 0; if (!PageUptodate(page)) { - rc = ecryptfs_read_lower_page_segment(page, page->index, 0, - PAGE_CACHE_SIZE, - page->mapping->host); - if (rc) { - printk(KERN_ERR "%s: Error attemping to read lower " - "page segment; rc = [%d]\n", __FUNCTION__, rc); - ClearPageUptodate(page); - goto out; - } else + struct ecryptfs_crypt_stat *crypt_stat = + &ecryptfs_inode_to_private( + file->f_path.dentry->d_inode)->crypt_stat; + + if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED) + || (crypt_stat->flags & ECRYPTFS_NEW_FILE)) { + rc = ecryptfs_read_lower_page_segment( + page, page->index, 0, PAGE_CACHE_SIZE, + page->mapping->host); + if (rc) { + printk(KERN_ERR "%s: Error attemping to read " + "lower page segment; rc = [%d]\n", + __FUNCTION__, rc); + ClearPageUptodate(page); + goto out; + } else + SetPageUptodate(page); + } else if (crypt_stat->flags & ECRYPTFS_VIEW_AS_ENCRYPTED) { + if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR) { + rc = ecryptfs_copy_up_encrypted_with_header( + page, crypt_stat); + if (rc) { + printk(KERN_ERR "%s: Error attempting " + "to copy the encrypted content " + "from the lower file whilst " + "inserting the metadata from " + "the xattr into the header; rc " + "= [%d]\n", __FUNCTION__, rc); + ClearPageUptodate(page); + goto out; + } + SetPageUptodate(page); + } else { + rc = ecryptfs_read_lower_page_segment( + page, page->index, 0, PAGE_CACHE_SIZE, + page->mapping->host); + if (rc) { + printk(KERN_ERR "%s: Error reading " + "page; rc = [%d]\n", + __FUNCTION__, rc); + ClearPageUptodate(page); + goto out; + } + SetPageUptodate(page); + } + } else { + rc = ecryptfs_decrypt_page(page); + if (rc) { + printk(KERN_ERR "%s: Error decrypting page " + "at index [%ld]; rc = [%d]\n", + __FUNCTION__, page->index, rc); + ClearPageUptodate(page); + goto out; + } SetPageUptodate(page); + } } - prev_page_end_size = ((loff_t)page->index << PAGE_CACHE_SHIFT); - - /* - * If creating a page or more of holes, zero them out via truncate. - * Note, this will increase i_size. - */ + /* If creating a page or more of holes, zero them out via truncate. + * Note, this will increase i_size. */ if (page->index != 0) { if (prev_page_end_size > i_size_read(page->mapping->host)) { rc = ecryptfs_truncate(file->f_path.dentry, prev_page_end_size); if (rc) { - printk(KERN_ERR "Error on attempt to " + printk(KERN_ERR "%s: Error on attempt to " "truncate to (higher) offset [%lld];" - " rc = [%d]\n", prev_page_end_size, rc); + " rc = [%d]\n", __FUNCTION__, + prev_page_end_size, rc); goto out; } } } - /* - * Writing to a new page, and creating a small hole from start of page? - * Zero it out. - */ - if ((i_size_read(page->mapping->host) == prev_page_end_size) && - (from != 0)) { + /* Writing to a new page, and creating a small hole from start + * of page? Zero it out. */ + if ((i_size_read(page->mapping->host) == prev_page_end_size) + && (from != 0)) zero_user(page, 0, PAGE_CACHE_SIZE); - } out: return rc; } -- GitLab From 7eb701dc7779794d46e02a7fa1380289cb730d46 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Tue, 4 Mar 2008 14:29:26 -0800 Subject: [PATCH 472/923] hisax_fcpcipnp: move request_irq later in probe After a quick glance at the code, we're getting the DEBUG_SHIRQ spurious interrupt before we have the adapter template filled in. Real interrupts appear to be turned on by fcpci*_init(), so move request_irq until just before that. Signed-off-by: Kyle McMartin Cc: Karsten Keil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/hisax/hisax_fcpcipnp.c | 34 ++++++++++++++--------------- 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/drivers/isdn/hisax/hisax_fcpcipnp.c b/drivers/isdn/hisax/hisax_fcpcipnp.c index 7993e01f9fc..76043dedba5 100644 --- a/drivers/isdn/hisax/hisax_fcpcipnp.c +++ b/drivers/isdn/hisax/hisax_fcpcipnp.c @@ -723,23 +723,6 @@ static int __devinit fcpcipnp_setup(struct fritz_adapter *adapter) if (!request_region(adapter->io, 32, "fcpcipnp")) goto err; - switch (adapter->type) { - case AVM_FRITZ_PCIV2: - retval = request_irq(adapter->irq, fcpci2_irq, IRQF_SHARED, - "fcpcipnp", adapter); - break; - case AVM_FRITZ_PCI: - retval = request_irq(adapter->irq, fcpci_irq, IRQF_SHARED, - "fcpcipnp", adapter); - break; - case AVM_FRITZ_PNP: - retval = request_irq(adapter->irq, fcpci_irq, 0, - "fcpcipnp", adapter); - break; - } - if (retval) - goto err_region; - switch (adapter->type) { case AVM_FRITZ_PCIV2: case AVM_FRITZ_PCI: @@ -794,6 +777,23 @@ static int __devinit fcpcipnp_setup(struct fritz_adapter *adapter) outb(0, adapter->io + AVM_STATUS0); mdelay(10); + switch (adapter->type) { + case AVM_FRITZ_PCIV2: + retval = request_irq(adapter->irq, fcpci2_irq, IRQF_SHARED, + "fcpcipnp", adapter); + break; + case AVM_FRITZ_PCI: + retval = request_irq(adapter->irq, fcpci_irq, IRQF_SHARED, + "fcpcipnp", adapter); + break; + case AVM_FRITZ_PNP: + retval = request_irq(adapter->irq, fcpci_irq, 0, + "fcpcipnp", adapter); + break; + } + if (retval) + goto err_region; + switch (adapter->type) { case AVM_FRITZ_PCIV2: fcpci2_init(adapter); -- GitLab From 3715863aa142c4f4c5208f5f3e5e9bac06006d2f Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 4 Mar 2008 14:29:27 -0800 Subject: [PATCH 473/923] iommu: export iommu_is_span_boundary helper function iommu_is_span_boundary is used internally in the IOMMU helper (lib/iommu-helper.c), a primitive function that judges whether a memory area spans LLD's segment boundary or not. It's difficult to convert some IOMMUs to use the IOMMU helper but iommu_is_span_boundary is still useful for them. So this patch exports it. This is needed for the parisc iommu fixes. Signed-off-by: FUJITA Tomonori Cc: Kyle McMartin Cc: Matthew Wilcox Cc: Grant Grundler Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/iommu-helper.h | 3 +++ lib/iommu-helper.c | 10 ++++++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/include/linux/iommu-helper.h b/include/linux/iommu-helper.h index 4dd4c04ff2f..c975caf7538 100644 --- a/include/linux/iommu-helper.h +++ b/include/linux/iommu-helper.h @@ -1,3 +1,6 @@ +extern int iommu_is_span_boundary(unsigned int index, unsigned int nr, + unsigned long shift, + unsigned long boundary_size); extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size, unsigned long start, unsigned int nr, unsigned long shift, diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c index 495575a59ca..a3b8d4c3f77 100644 --- a/lib/iommu-helper.c +++ b/lib/iommu-helper.c @@ -40,10 +40,12 @@ static inline void set_bit_area(unsigned long *map, unsigned long i, } } -static inline int is_span_boundary(unsigned int index, unsigned int nr, - unsigned long shift, - unsigned long boundary_size) +int iommu_is_span_boundary(unsigned int index, unsigned int nr, + unsigned long shift, + unsigned long boundary_size) { + BUG_ON(!is_power_of_2(boundary_size)); + shift = (shift + index) & (boundary_size - 1); return shift + nr > boundary_size; } @@ -57,7 +59,7 @@ unsigned long iommu_area_alloc(unsigned long *map, unsigned long size, again: index = find_next_zero_area(map, size, start, nr, align_mask); if (index != -1) { - if (is_span_boundary(index, nr, shift, boundary_size)) { + if (iommu_is_span_boundary(index, nr, shift, boundary_size)) { /* we could do more effectively */ start = index + 1; goto again; -- GitLab From 7c8cda625acd9b704100994626fb6d2fb4ffb9c2 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 4 Mar 2008 14:29:28 -0800 Subject: [PATCH 474/923] iommu: parisc: pass struct device to iommu_alloc_range This adds struct device argument to sba_alloc_range and ccio_alloc_range, a preparation for modifications to fix the IOMMU segment boundary problem. This change enables ccio_alloc_range to access to LLD's segment boundary limits. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: FUJITA Tomonori Cc: Kyle McMartin Cc: Matthew Wilcox Cc: Grant Grundler Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/parisc/ccio-dma.c | 4 ++-- drivers/parisc/iommu-helpers.h | 6 +++--- drivers/parisc/sba_iommu.c | 4 ++-- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index d08b284de19..1695facfca3 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -341,7 +341,7 @@ static int ioc_count; * of available pages for the requested size. */ static int -ccio_alloc_range(struct ioc *ioc, size_t size) +ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size) { unsigned int pages_needed = size >> IOVP_SHIFT; unsigned int res_idx; @@ -760,7 +760,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size, ioc->msingle_pages += size >> IOVP_SHIFT; #endif - idx = ccio_alloc_range(ioc, size); + idx = ccio_alloc_range(ioc, dev, size); iovp = (dma_addr_t)MKIOVP(idx); pdir_start = &(ioc->pdir_base[idx]); diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h index 97ba8286c59..a9c46cc2db3 100644 --- a/drivers/parisc/iommu-helpers.h +++ b/drivers/parisc/iommu-helpers.h @@ -96,8 +96,8 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents, static inline unsigned int iommu_coalesce_chunks(struct ioc *ioc, struct device *dev, - struct scatterlist *startsg, int nents, - int (*iommu_alloc_range)(struct ioc *, size_t)) + struct scatterlist *startsg, int nents, + int (*iommu_alloc_range)(struct ioc *, struct device *, size_t)) { struct scatterlist *contig_sg; /* contig chunk head */ unsigned long dma_offset, dma_len; /* start/len of DMA stream */ @@ -166,7 +166,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev, dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE); sg_dma_address(contig_sg) = PIDE_FLAG - | (iommu_alloc_range(ioc, dma_len) << IOVP_SHIFT) + | (iommu_alloc_range(ioc, dev, dma_len) << IOVP_SHIFT) | dma_offset; n_mappings++; } diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index d06627c3f35..7d58bd2019b 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -404,7 +404,7 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted) * resource bit map. */ static int -sba_alloc_range(struct ioc *ioc, size_t size) +sba_alloc_range(struct ioc *ioc, struct device *dev, size_t size) { unsigned int pages_needed = size >> IOVP_SHIFT; #ifdef SBA_COLLECT_STATS @@ -710,7 +710,7 @@ sba_map_single(struct device *dev, void *addr, size_t size, ioc->msingle_calls++; ioc->msingle_pages += size >> IOVP_SHIFT; #endif - pide = sba_alloc_range(ioc, size); + pide = sba_alloc_range(ioc, dev, size); iovp = (dma_addr_t) pide << IOVP_SHIFT; DBG_RUN("%s() 0x%p -> 0x%lx\n", -- GitLab From 466634488e80968f12e73dd1fe6af5c37a1fbfe2 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 4 Mar 2008 14:29:28 -0800 Subject: [PATCH 475/923] iommu: parisc: make the IOMMUs respect the segment boundary limits Make PARISC's two IOMMU implementations not allocate a memory area spanning LLD's segment boundary. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: FUJITA Tomonori Cc: Kyle McMartin Cc: Matthew Wilcox Cc: Grant Grundler Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/parisc/Kconfig | 5 ++++ drivers/parisc/ccio-dma.c | 23 ++++++++++++------ drivers/parisc/sba_iommu.c | 48 +++++++++++++++++++++++++++++--------- 3 files changed, 58 insertions(+), 18 deletions(-) diff --git a/drivers/parisc/Kconfig b/drivers/parisc/Kconfig index 1d3b84b4af3..553a9905299 100644 --- a/drivers/parisc/Kconfig +++ b/drivers/parisc/Kconfig @@ -103,6 +103,11 @@ config IOMMU_SBA depends on PCI_LBA default PCI_LBA +config IOMMU_HELPER + bool + depends on IOMMU_SBA || IOMMU_CCIO + default y + #config PCI_EPIC # bool "EPIC/SAGA PCI support" # depends on PCI diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index 1695facfca3..60d338cd800 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include /* for L1_CACHE_BYTES */ @@ -302,13 +303,17 @@ static int ioc_count; */ #define CCIO_SEARCH_LOOP(ioc, res_idx, mask, size) \ for(; res_ptr < res_end; ++res_ptr) { \ - if(0 == (*res_ptr & mask)) { \ - *res_ptr |= mask; \ - res_idx = (unsigned int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \ - ioc->res_hint = res_idx + (size >> 3); \ - goto resource_found; \ - } \ - } + int ret;\ + unsigned int idx;\ + idx = (unsigned int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \ + ret = iommu_is_span_boundary(idx << 3, pages_needed, 0, boundary_size);\ + if ((0 == (*res_ptr & mask)) && !ret) { \ + *res_ptr |= mask; \ + res_idx = idx;\ + ioc->res_hint = res_idx + (size >> 3); \ + goto resource_found; \ + } \ + } #define CCIO_FIND_FREE_MAPPING(ioa, res_idx, mask, size) \ u##size *res_ptr = (u##size *)&((ioc)->res_map[ioa->res_hint & ~((size >> 3) - 1)]); \ @@ -345,6 +350,7 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size) { unsigned int pages_needed = size >> IOVP_SHIFT; unsigned int res_idx; + unsigned long boundary_size; #ifdef CCIO_SEARCH_TIME unsigned long cr_start = mfctl(16); #endif @@ -360,6 +366,9 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size) ** ggg sacrifices another 710 to the computer gods. */ + boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT); + boundary_size >>= IOVP_SHIFT; + if (pages_needed <= 8) { /* * LAN traffic will not thrash the TLB IFF the same NIC diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index 7d58bd2019b..e834127a850 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include @@ -313,6 +314,12 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents) #define RESMAP_MASK(n) (~0UL << (BITS_PER_LONG - (n))) #define RESMAP_IDX_MASK (sizeof(unsigned long) - 1) +unsigned long ptr_to_pide(struct ioc *ioc, unsigned long *res_ptr, + unsigned int bitshiftcnt) +{ + return (((unsigned long)res_ptr - (unsigned long)ioc->res_map) << 3) + + bitshiftcnt; +} /** * sba_search_bitmap - find free space in IO PDIR resource bitmap @@ -324,19 +331,36 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents) * Cool perf optimization: search for log2(size) bits at a time. */ static SBA_INLINE unsigned long -sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted) +sba_search_bitmap(struct ioc *ioc, struct device *dev, + unsigned long bits_wanted) { unsigned long *res_ptr = ioc->res_hint; unsigned long *res_end = (unsigned long *) &(ioc->res_map[ioc->res_size]); - unsigned long pide = ~0UL; + unsigned long pide = ~0UL, tpide; + unsigned long boundary_size; + unsigned long shift; + int ret; + + boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT); + boundary_size >>= IOVP_SHIFT; + +#if defined(ZX1_SUPPORT) + BUG_ON(ioc->ibase & ~IOVP_MASK); + shift = ioc->ibase >> IOVP_SHIFT; +#else + shift = 0; +#endif if (bits_wanted > (BITS_PER_LONG/2)) { /* Search word at a time - no mask needed */ for(; res_ptr < res_end; ++res_ptr) { - if (*res_ptr == 0) { + tpide = ptr_to_pide(ioc, res_ptr, 0); + ret = iommu_is_span_boundary(tpide, bits_wanted, + shift, + boundary_size); + if ((*res_ptr == 0) && !ret) { *res_ptr = RESMAP_MASK(bits_wanted); - pide = ((unsigned long)res_ptr - (unsigned long)ioc->res_map); - pide <<= 3; /* convert to bit address */ + pide = tpide; break; } } @@ -365,11 +389,13 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted) { DBG_RES(" %p %lx %lx\n", res_ptr, mask, *res_ptr); WARN_ON(mask == 0); - if(((*res_ptr) & mask) == 0) { + tpide = ptr_to_pide(ioc, res_ptr, bitshiftcnt); + ret = iommu_is_span_boundary(tpide, bits_wanted, + shift, + boundary_size); + if ((((*res_ptr) & mask) == 0) && !ret) { *res_ptr |= mask; /* mark resources busy! */ - pide = ((unsigned long)res_ptr - (unsigned long)ioc->res_map); - pide <<= 3; /* convert to bit address */ - pide += bitshiftcnt; + pide = tpide; break; } mask >>= o; @@ -412,9 +438,9 @@ sba_alloc_range(struct ioc *ioc, struct device *dev, size_t size) #endif unsigned long pide; - pide = sba_search_bitmap(ioc, pages_needed); + pide = sba_search_bitmap(ioc, dev, pages_needed); if (pide >= (ioc->res_size << 3)) { - pide = sba_search_bitmap(ioc, pages_needed); + pide = sba_search_bitmap(ioc, dev, pages_needed); if (pide >= (ioc->res_size << 3)) panic("%s: I/O MMU @ %p is out of mapping resources\n", __FILE__, ioc->ioc_hpa); -- GitLab From a35e63efa1fb18c6f20f38e3ddf3f8ffbcf0f6e7 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 4 Mar 2008 14:29:29 -0800 Subject: [PATCH 476/923] md: fix deadlock in md/raid1 and md/raid10 when handling a read error When handling a read error, we freeze the array to stop any other IO while attempting to over-write with correct data. This is done in the raid1d(raid10d) thread and must wait for all submitted IO to complete (except for requests that failed and are sitting in the retry queue - these are counted in ->nr_queue and will stay there during a freeze). However write requests need attention from raid1d as bitmap updates might be required. This can cause a deadlock as raid1 is waiting for requests to finish that themselves need attention from raid1d. So we create a new function 'flush_pending_writes' to give that attention, and call it in freeze_array to be sure that we aren't waiting on raid1d. Thanks to "K.Tanaka" for finding and reporting this problem. Cc: "K.Tanaka" Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/raid1.c | 62 ++++++++++++++++++++++++++++++--------------- drivers/md/raid10.c | 62 +++++++++++++++++++++++++++++---------------- 2 files changed, 81 insertions(+), 43 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 5c7fef091ce..38f076a3400 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -592,6 +592,37 @@ static int raid1_congested(void *data, int bits) } +static int flush_pending_writes(conf_t *conf) +{ + /* Any writes that have been queued but are awaiting + * bitmap updates get flushed here. + * We return 1 if any requests were actually submitted. + */ + int rv = 0; + + spin_lock_irq(&conf->device_lock); + + if (conf->pending_bio_list.head) { + struct bio *bio; + bio = bio_list_get(&conf->pending_bio_list); + blk_remove_plug(conf->mddev->queue); + spin_unlock_irq(&conf->device_lock); + /* flush any pending bitmap writes to + * disk before proceeding w/ I/O */ + bitmap_unplug(conf->mddev->bitmap); + + while (bio) { /* submit pending writes */ + struct bio *next = bio->bi_next; + bio->bi_next = NULL; + generic_make_request(bio); + bio = next; + } + rv = 1; + } else + spin_unlock_irq(&conf->device_lock); + return rv; +} + /* Barriers.... * Sometimes we need to suspend IO while we do something else, * either some resync/recovery, or reconfigure the array. @@ -681,7 +712,8 @@ static void freeze_array(conf_t *conf) wait_event_lock_irq(conf->wait_barrier, conf->barrier+conf->nr_pending == conf->nr_queued+2, conf->resync_lock, - raid1_unplug(conf->mddev->queue)); + ({ flush_pending_writes(conf); + raid1_unplug(conf->mddev->queue); })); spin_unlock_irq(&conf->resync_lock); } static void unfreeze_array(conf_t *conf) @@ -907,6 +939,9 @@ static int make_request(struct request_queue *q, struct bio * bio) blk_plug_device(mddev->queue); spin_unlock_irqrestore(&conf->device_lock, flags); + /* In case raid1d snuck into freeze_array */ + wake_up(&conf->wait_barrier); + if (do_sync) md_wakeup_thread(mddev->thread); #if 0 @@ -1473,28 +1508,14 @@ static void raid1d(mddev_t *mddev) for (;;) { char b[BDEVNAME_SIZE]; - spin_lock_irqsave(&conf->device_lock, flags); - - if (conf->pending_bio_list.head) { - bio = bio_list_get(&conf->pending_bio_list); - blk_remove_plug(mddev->queue); - spin_unlock_irqrestore(&conf->device_lock, flags); - /* flush any pending bitmap writes to disk before proceeding w/ I/O */ - bitmap_unplug(mddev->bitmap); - while (bio) { /* submit pending writes */ - struct bio *next = bio->bi_next; - bio->bi_next = NULL; - generic_make_request(bio); - bio = next; - } - unplug = 1; + unplug += flush_pending_writes(conf); - continue; - } - - if (list_empty(head)) + spin_lock_irqsave(&conf->device_lock, flags); + if (list_empty(head)) { + spin_unlock_irqrestore(&conf->device_lock, flags); break; + } r1_bio = list_entry(head->prev, r1bio_t, retry_list); list_del(head->prev); conf->nr_queued--; @@ -1590,7 +1611,6 @@ static void raid1d(mddev_t *mddev) } } } - spin_unlock_irqrestore(&conf->device_lock, flags); if (unplug) unplug_slaves(mddev); } diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 017f58113c3..5de42d87bf4 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -629,7 +629,36 @@ static int raid10_congested(void *data, int bits) return ret; } - +static int flush_pending_writes(conf_t *conf) +{ + /* Any writes that have been queued but are awaiting + * bitmap updates get flushed here. + * We return 1 if any requests were actually submitted. + */ + int rv = 0; + + spin_lock_irq(&conf->device_lock); + + if (conf->pending_bio_list.head) { + struct bio *bio; + bio = bio_list_get(&conf->pending_bio_list); + blk_remove_plug(conf->mddev->queue); + spin_unlock_irq(&conf->device_lock); + /* flush any pending bitmap writes to disk + * before proceeding w/ I/O */ + bitmap_unplug(conf->mddev->bitmap); + + while (bio) { /* submit pending writes */ + struct bio *next = bio->bi_next; + bio->bi_next = NULL; + generic_make_request(bio); + bio = next; + } + rv = 1; + } else + spin_unlock_irq(&conf->device_lock); + return rv; +} /* Barriers.... * Sometimes we need to suspend IO while we do something else, * either some resync/recovery, or reconfigure the array. @@ -720,7 +749,8 @@ static void freeze_array(conf_t *conf) wait_event_lock_irq(conf->wait_barrier, conf->barrier+conf->nr_pending == conf->nr_queued+2, conf->resync_lock, - raid10_unplug(conf->mddev->queue)); + ({ flush_pending_writes(conf); + raid10_unplug(conf->mddev->queue); })); spin_unlock_irq(&conf->resync_lock); } @@ -892,6 +922,9 @@ static int make_request(struct request_queue *q, struct bio * bio) blk_plug_device(mddev->queue); spin_unlock_irqrestore(&conf->device_lock, flags); + /* In case raid10d snuck in to freeze_array */ + wake_up(&conf->wait_barrier); + if (do_sync) md_wakeup_thread(mddev->thread); @@ -1464,28 +1497,14 @@ static void raid10d(mddev_t *mddev) for (;;) { char b[BDEVNAME_SIZE]; - spin_lock_irqsave(&conf->device_lock, flags); - if (conf->pending_bio_list.head) { - bio = bio_list_get(&conf->pending_bio_list); - blk_remove_plug(mddev->queue); - spin_unlock_irqrestore(&conf->device_lock, flags); - /* flush any pending bitmap writes to disk before proceeding w/ I/O */ - bitmap_unplug(mddev->bitmap); + unplug += flush_pending_writes(conf); - while (bio) { /* submit pending writes */ - struct bio *next = bio->bi_next; - bio->bi_next = NULL; - generic_make_request(bio); - bio = next; - } - unplug = 1; - - continue; - } - - if (list_empty(head)) + spin_lock_irqsave(&conf->device_lock, flags); + if (list_empty(head)) { + spin_unlock_irqrestore(&conf->device_lock, flags); break; + } r10_bio = list_entry(head->prev, r10bio_t, retry_list); list_del(head->prev); conf->nr_queued--; @@ -1548,7 +1567,6 @@ static void raid10d(mddev_t *mddev) } } } - spin_unlock_irqrestore(&conf->device_lock, flags); if (unplug) unplug_slaves(mddev); } -- GitLab From 8311c29d40235062a843f4a8e8a70a44af6fe4c9 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 4 Mar 2008 14:29:30 -0800 Subject: [PATCH 477/923] md: reduce CPU wastage on idle md array with a write-intent bitmap On an md array with a write-intent bitmap, a thread wakes up every few seconds and scans the bitmap looking for work to do. If the array is idle, there will be no work to do, but a lot of scanning is done to discover this. So cache the fact that the bitmap is completely clean, and avoid scanning the whole bitmap when the cache is known to be clean. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/bitmap.c | 19 +++++++++++++++++-- include/linux/raid/bitmap.h | 2 ++ 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 7aeceedcf7d..831aed9c56f 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1047,6 +1047,11 @@ void bitmap_daemon_work(struct bitmap *bitmap) if (time_before(jiffies, bitmap->daemon_lastrun + bitmap->daemon_sleep*HZ)) return; bitmap->daemon_lastrun = jiffies; + if (bitmap->allclean) { + bitmap->mddev->thread->timeout = MAX_SCHEDULE_TIMEOUT; + return; + } + bitmap->allclean = 1; for (j = 0; j < bitmap->chunks; j++) { bitmap_counter_t *bmc; @@ -1068,8 +1073,10 @@ void bitmap_daemon_work(struct bitmap *bitmap) clear_page_attr(bitmap, page, BITMAP_PAGE_NEEDWRITE); spin_unlock_irqrestore(&bitmap->lock, flags); - if (need_write) + if (need_write) { write_page(bitmap, page, 0); + bitmap->allclean = 0; + } continue; } @@ -1098,6 +1105,9 @@ void bitmap_daemon_work(struct bitmap *bitmap) /* if (j < 100) printk("bitmap: j=%lu, *bmc = 0x%x\n", j, *bmc); */ + if (*bmc) + bitmap->allclean = 0; + if (*bmc == 2) { *bmc=1; /* maybe clear the bit next time */ set_page_attr(bitmap, page, BITMAP_PAGE_CLEAN); @@ -1132,6 +1142,8 @@ void bitmap_daemon_work(struct bitmap *bitmap) } } + if (bitmap->allclean == 0) + bitmap->mddev->thread->timeout = bitmap->daemon_sleep * HZ; } static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap, @@ -1226,6 +1238,7 @@ int bitmap_startwrite(struct bitmap *bitmap, sector_t offset, unsigned long sect sectors -= blocks; else sectors = 0; } + bitmap->allclean = 0; return 0; } @@ -1296,6 +1309,7 @@ int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks, } } spin_unlock_irq(&bitmap->lock); + bitmap->allclean = 0; return rv; } @@ -1332,6 +1346,7 @@ void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int ab } unlock: spin_unlock_irqrestore(&bitmap->lock, flags); + bitmap->allclean = 0; } void bitmap_close_sync(struct bitmap *bitmap) @@ -1399,7 +1414,7 @@ static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int n set_page_attr(bitmap, page, BITMAP_PAGE_CLEAN); } spin_unlock_irq(&bitmap->lock); - + bitmap->allclean = 0; } /* dirty the memory and file bits for bitmap chunks "s" to "e" */ diff --git a/include/linux/raid/bitmap.h b/include/linux/raid/bitmap.h index e51b531cd0b..47fbcba1185 100644 --- a/include/linux/raid/bitmap.h +++ b/include/linux/raid/bitmap.h @@ -235,6 +235,8 @@ struct bitmap { unsigned long flags; + int allclean; + unsigned long max_write_behind; /* write-behind mode */ atomic_t behind_writes; -- GitLab From a1801f858e57f87a7f79914346921cc729632295 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 4 Mar 2008 14:29:31 -0800 Subject: [PATCH 478/923] md: guard against possible bad array geometry in v1 metadata Make sure the data doesn't start before the end of the superblock when the superblock is at the start of the device. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/md.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 7da6ec244e1..b375de5c1af 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1105,7 +1105,11 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256; bmask = queue_hardsect_size(rdev->bdev->bd_disk->queue)-1; if (rdev->sb_size & bmask) - rdev-> sb_size = (rdev->sb_size | bmask)+1; + rdev->sb_size = (rdev->sb_size | bmask) + 1; + + if (minor_version + && rdev->data_offset < sb_offset + (rdev->sb_size/512)) + return -EINVAL; if (sb->level == cpu_to_le32(LEVEL_MULTIPATH)) rdev->desc_nr = -1; @@ -1137,7 +1141,7 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version) else ret = 0; } - if (minor_version) + if (minor_version) rdev->size = ((rdev->bdev->bd_inode->i_size>>9) - le64_to_cpu(sb->data_offset)) / 2; else rdev->size = rdev->sb_offset; -- GitLab From d0fae18f1b53a1d39135a968792be034bdf7ff26 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 4 Mar 2008 14:29:31 -0800 Subject: [PATCH 479/923] md: clean up irregularity with raid autodetect When a raid1 array is stopped, all components currently get added to the list for auto-detection. However we should really only add components that were found by autodetection in the first place. So add a flag to record that information, and use it. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/md.c | 4 +++- include/linux/raid/md_k.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index b375de5c1af..a71241c5ae7 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1503,7 +1503,8 @@ static void export_rdev(mdk_rdev_t * rdev) free_disk_sb(rdev); list_del_init(&rdev->same_set); #ifndef MODULE - md_autodetect_dev(rdev->bdev->bd_dev); + if (test_bit(AutoDetected, &rdev->flags)) + md_autodetect_dev(rdev->bdev->bd_dev); #endif unlock_rdev(rdev); kobject_put(&rdev->kobj); @@ -6025,6 +6026,7 @@ static void autostart_arrays(int part) MD_BUG(); continue; } + set_bit(AutoDetected, &rdev->flags); list_add(&rdev->same_set, &pending_raid_disks); i_passed++; } diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 85a068bab62..7bb6d1abf71 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -83,6 +83,7 @@ struct mdk_rdev_s #define BarriersNotsupp 5 /* BIO_RW_BARRIER is not supported */ #define AllReserved 6 /* If whole device is reserved for * one array */ +#define AutoDetected 7 /* added by auto-detect */ int desc_nr; /* descriptor index in the superblock */ int raid_disk; /* role of device in array */ -- GitLab From 25156198235325805cd7295ed694509fd6e3a29e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 4 Mar 2008 14:29:32 -0800 Subject: [PATCH 480/923] md: make sure a reshape is started when device switches to read-write A resync/reshape/recovery thread will refuse to progress when the array is marked read-only. So whenever it mark it not read-only, it is important to wake up thread resync thread. There is one place we didn't do this. The problem manifests if the start_ro module parameters is set, and a raid5 array that is in the middle of a reshape (restripe) is started. The array will initially be semi-read-only (meaning it acts like it is readonly until the first write). So the reshape will not proceed. On the first write, the array will become read-write, but the reshape will not be started, and there is no event which will ever restart that thread. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/md.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index a71241c5ae7..a986845ea0c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5356,6 +5356,7 @@ void md_write_start(mddev_t *mddev, struct bio *bi) mddev->ro = 0; set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); + md_wakeup_thread(mddev->sync_thread); } atomic_inc(&mddev->writes_pending); if (mddev->in_sync) { -- GitLab From 27c529bb8e906d5d692152bc127cc09477d3629e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 4 Mar 2008 14:29:33 -0800 Subject: [PATCH 481/923] md: lock access to rdev attributes properly When we access attributes of an rdev (component device on an md array) through sysfs, we really need to lock the array against concurrent changes. We currently do that when we change an attribute, but not when we read an attribute. We need to lock when reading as well else rdev->mddev could become NULL while we are accessing it. So add appropriate locking (mddev_lock) to rdev_attr_show. rdev_size_store requires some extra care as well as it needs to unlock the mddev while scanning other mddevs for overlapping regions. We currently assume that rdev->mddev will still be unchanged after the scan, but that cannot be certain. So take a copy of rdev->mddev for use at the end of the function. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/md.c | 35 ++++++++++++++++++++++++++--------- 1 file changed, 26 insertions(+), 9 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index a986845ea0c..827824a9f3e 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2001,9 +2001,11 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len) char *e; unsigned long long size = simple_strtoull(buf, &e, 10); unsigned long long oldsize = rdev->size; + mddev_t *my_mddev = rdev->mddev; + if (e==buf || (*e && *e != '\n')) return -EINVAL; - if (rdev->mddev->pers) + if (my_mddev->pers) return -EBUSY; rdev->size = size; if (size > oldsize && rdev->mddev->external) { @@ -2016,7 +2018,7 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len) int overlap = 0; struct list_head *tmp, *tmp2; - mddev_unlock(rdev->mddev); + mddev_unlock(my_mddev); for_each_mddev(mddev, tmp) { mdk_rdev_t *rdev2; @@ -2036,7 +2038,7 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len) break; } } - mddev_lock(rdev->mddev); + mddev_lock(my_mddev); if (overlap) { /* Someone else could have slipped in a size * change here, but doing so is just silly. @@ -2048,8 +2050,8 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len) return -EBUSY; } } - if (size < rdev->mddev->size || rdev->mddev->size == 0) - rdev->mddev->size = size; + if (size < my_mddev->size || my_mddev->size == 0) + my_mddev->size = size; return len; } @@ -2070,10 +2072,21 @@ rdev_attr_show(struct kobject *kobj, struct attribute *attr, char *page) { struct rdev_sysfs_entry *entry = container_of(attr, struct rdev_sysfs_entry, attr); mdk_rdev_t *rdev = container_of(kobj, mdk_rdev_t, kobj); + mddev_t *mddev = rdev->mddev; + ssize_t rv; if (!entry->show) return -EIO; - return entry->show(rdev, page); + + rv = mddev ? mddev_lock(mddev) : -EBUSY; + if (!rv) { + if (rdev->mddev == NULL) + rv = -EBUSY; + else + rv = entry->show(rdev, page); + mddev_unlock(mddev); + } + return rv; } static ssize_t @@ -2082,15 +2095,19 @@ rdev_attr_store(struct kobject *kobj, struct attribute *attr, { struct rdev_sysfs_entry *entry = container_of(attr, struct rdev_sysfs_entry, attr); mdk_rdev_t *rdev = container_of(kobj, mdk_rdev_t, kobj); - int rv; + ssize_t rv; + mddev_t *mddev = rdev->mddev; if (!entry->store) return -EIO; if (!capable(CAP_SYS_ADMIN)) return -EACCES; - rv = mddev_lock(rdev->mddev); + rv = mddev ? mddev_lock(mddev): -EBUSY; if (!rv) { - rv = entry->store(rdev, page, length); + if (rdev->mddev == NULL) + rv = -EBUSY; + else + rv = entry->store(rdev, page, length); mddev_unlock(rdev->mddev); } return rv; -- GitLab From 8ed3a19563b6c05b7625649b1769ddb063d53253 Mon Sep 17 00:00:00 2001 From: Keld Simonsen Date: Tue, 4 Mar 2008 14:29:34 -0800 Subject: [PATCH 482/923] md: don't attempt read-balancing for raid10 'far' layouts This patch changes the disk to be read for layout "far > 1" to always be the disk with the lowest block address. Thus the chunks to be read will always be (for a fully functioning array) from the first band of stripes, and the raid will then work as a raid0 consisting of the first band of stripes. Some advantages: The fastest part which is the outer sectors of the disks involved will be used. The outer blocks of a disk may be as much as 100 % faster than the inner blocks. Average seek time will be smaller, as seeks will always be confined to the first part of the disks. Mixed disks with different performance characteristics will work better, as they will work as raid0, the sequential read rate will be number of disks involved times the IO rate of the slowest disk. If a disk is malfunctioning, the first disk which is working, and has the lowest block address for the logical block will be used. Signed-off-by: Keld Simonsen Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/raid10.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 5de42d87bf4..6c486d839c9 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -537,7 +537,8 @@ static int read_balance(conf_t *conf, r10bio_t *r10_bio) current_distance = abs(r10_bio->devs[slot].addr - conf->mirrors[disk].head_position); - /* Find the disk whose head is closest */ + /* Find the disk whose head is closest, + * or - for far > 1 - find the closest to partition beginning */ for (nslot = slot; nslot < conf->copies; nslot++) { int ndisk = r10_bio->devs[nslot].devnum; @@ -557,8 +558,13 @@ static int read_balance(conf_t *conf, r10bio_t *r10_bio) slot = nslot; break; } - new_distance = abs(r10_bio->devs[nslot].addr - - conf->mirrors[ndisk].head_position); + + /* for far > 1 always use the lowest address */ + if (conf->far_copies > 1) + new_distance = r10_bio->devs[nslot].addr; + else + new_distance = abs(r10_bio->devs[nslot].addr - + conf->mirrors[ndisk].head_position); if (new_distance < current_distance) { current_distance = new_distance; disk = ndisk; -- GitLab From 1c830532f6b44d10a1743ccd00e990c6b83396f5 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 4 Mar 2008 14:29:35 -0800 Subject: [PATCH 483/923] md: fix possible raid1/raid10 deadlock on read error during resync Thanks to K.Tanaka and the scsi fault injection framework, here is a fix for another possible deadlock in raid1/raid10 error handing. If a read request returns an error while a resync is happening and a resync request is pending, the attempt to fix the error will block until the resync progresses, and the resync will block until the read request completes. Thus a deadlock. This patch fixes the problem. Cc: "K.Tanaka" Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/raid1.c | 11 +++++++++-- drivers/md/raid10.c | 11 +++++++++-- 2 files changed, 18 insertions(+), 4 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 38f076a3400..ff61b309129 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -704,13 +704,20 @@ static void freeze_array(conf_t *conf) /* stop syncio and normal IO and wait for everything to * go quite. * We increment barrier and nr_waiting, and then - * wait until barrier+nr_pending match nr_queued+2 + * wait until nr_pending match nr_queued+1 + * This is called in the context of one normal IO request + * that has failed. Thus any sync request that might be pending + * will be blocked by nr_pending, and we need to wait for + * pending IO requests to complete or be queued for re-try. + * Thus the number queued (nr_queued) plus this request (1) + * must match the number of pending IOs (nr_pending) before + * we continue. */ spin_lock_irq(&conf->resync_lock); conf->barrier++; conf->nr_waiting++; wait_event_lock_irq(conf->wait_barrier, - conf->barrier+conf->nr_pending == conf->nr_queued+2, + conf->nr_pending == conf->nr_queued+1, conf->resync_lock, ({ flush_pending_writes(conf); raid1_unplug(conf->mddev->queue); })); diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 6c486d839c9..8e5671d2f3d 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -747,13 +747,20 @@ static void freeze_array(conf_t *conf) /* stop syncio and normal IO and wait for everything to * go quiet. * We increment barrier and nr_waiting, and then - * wait until barrier+nr_pending match nr_queued+2 + * wait until nr_pending match nr_queued+1 + * This is called in the context of one normal IO request + * that has failed. Thus any sync request that might be pending + * will be blocked by nr_pending, and we need to wait for + * pending IO requests to complete or be queued for re-try. + * Thus the number queued (nr_queued) plus this request (1) + * must match the number of pending IOs (nr_pending) before + * we continue. */ spin_lock_irq(&conf->resync_lock); conf->barrier++; conf->nr_waiting++; wait_event_lock_irq(conf->wait_barrier, - conf->barrier+conf->nr_pending == conf->nr_queued+2, + conf->nr_pending == conf->nr_queued+1, conf->resync_lock, ({ flush_pending_writes(conf); raid10_unplug(conf->mddev->queue); })); -- GitLab From a07e6ab41be179cf1ed728a4f41368435508b550 Mon Sep 17 00:00:00 2001 From: "K.Tanaka" Date: Tue, 4 Mar 2008 14:29:37 -0800 Subject: [PATCH 484/923] md: the md RAID10 resync thread could cause a md RAID10 array deadlock This message describes another issue about md RAID10 found by testing the 2.6.24 md RAID10 using new scsi fault injection framework. Abstract: When a scsi error results in disabling a disk during RAID10 recovery, the resync threads of md RAID10 could stall. This case, the raid array has already been broken and it may not matter. But I think stall is not preferable. If it occurs, even shutdown or reboot will fail because of resource busy. The deadlock mechanism: The r10bio_s structure has a "remaining" member to keep track of BIOs yet to be handled when recovering. The "remaining" counter is incremented when building a BIO in sync_request() and is decremented when finish a BIO in end_sync_write(). If building a BIO fails for some reasons in sync_request(), the "remaining" should be decremented if it has already been incremented. I found a case where this decrement is forgotten. This causes a md_do_sync() deadlock because md_do_sync() waits for md_done_sync() called by end_sync_write(), but end_sync_write() never calls md_done_sync() because of the "remaining" counter mismatch. For example, this problem would be reproduced in the following case: Personalities : [raid10] md0 : active raid10 sdf1[4] sde1[5](F) sdd1[2] sdc1[1] sdb1[6](F) 3919616 blocks 64K chunks 2 near-copies [4/2] [_UU_] [>....................] recovery = 2.2% (45376/1959808) finish=0.7min speed=45376K/sec This case, sdf1 is recovering, sdb1 and sde1 are disabled. An additional error with detaching sdd will cause a deadlock. md0 : active raid10 sdf1[4] sde1[5](F) sdd1[6](F) sdc1[1] sdb1[7](F) 3919616 blocks 64K chunks 2 near-copies [4/1] [_U__] [=>...................] recovery = 5.0% (99520/1959808) finish=5.9min speed=5237K/sec 2739 ? S< 0:17 [md0_raid10] 28608 ? D< 0:00 [md0_resync] 28629 pts/1 Ss 0:00 bash 28830 pts/1 R+ 0:00 ps ax 31819 ? D< 0:00 [kjournald] The resync thread keeps working, but actually it is deadlocked. Patch: By this patch, the remaining counter will be decremented if needed. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/raid10.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 8e5671d2f3d..32389d2f18f 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1818,6 +1818,8 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i if (j == conf->copies) { /* Cannot recover, so abort the recovery */ put_buf(r10_bio); + if (rb2) + atomic_dec(&rb2->remaining); r10_bio = rb2; if (!test_and_set_bit(MD_RECOVERY_ERR, &mddev->recovery)) printk(KERN_INFO "raid10: %s: insufficient working devices for recovery.\n", -- GitLab From ac09b3a15154af5f081fed509c6c3662e79de785 Mon Sep 17 00:00:00 2001 From: Adam Litke Date: Tue, 4 Mar 2008 14:29:38 -0800 Subject: [PATCH 485/923] hugetlb: close a difficult to trigger reservation race A hugetlb reservation may be inadequately backed in the event of racing allocations and frees when utilizing surplus huge pages. Consider the following series of events in processes A and B: A) Allocates some surplus pages to satisfy a reservation B) Frees some huge pages A) A notices the extra free pages and drops hugetlb_lock to free some of its surplus pages back to the buddy allocator. B) Allocates some huge pages A) Reacquires hugetlb_lock and returns from gather_surplus_huge_pages() Avoid this by commiting the reservation after pages have been allocated but before dropping the lock to free excess pages. For parity, release the reservation in return_unused_surplus_pages(). This patch also corrects the cpuset_mems_nr() error path in hugetlb_acct_memory(). If the cpuset check fails, uncommit the reservation, but also be sure to return any surplus huge pages that may have been allocated to back the failed reservation. Thanks to Andy Whitcroft for discovering this. Signed-off-by: Adam Litke Cc: Mel Gorman Cc: Andy Whitcroft Cc: Dave Hansen Cc: William Lee Irwin III Cc: Andy Whitcroft Cc: Mel Gorman Cc: David Gibson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/hugetlb.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 89e6286a7f5..20e04c64468 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -296,8 +296,10 @@ static int gather_surplus_pages(int delta) int needed, allocated; needed = (resv_huge_pages + delta) - free_huge_pages; - if (needed <= 0) + if (needed <= 0) { + resv_huge_pages += delta; return 0; + } allocated = 0; INIT_LIST_HEAD(&surplus_list); @@ -335,9 +337,12 @@ retry: * The surplus_list now contains _at_least_ the number of extra pages * needed to accomodate the reservation. Add the appropriate number * of pages to the hugetlb pool and free the extras back to the buddy - * allocator. + * allocator. Commit the entire reservation here to prevent another + * process from stealing the pages as they are added to the pool but + * before they are reserved. */ needed += allocated; + resv_huge_pages += delta; ret = 0; free: list_for_each_entry_safe(page, tmp, &surplus_list, lru) { @@ -371,6 +376,9 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages) struct page *page; unsigned long nr_pages; + /* Uncommit the reservation */ + resv_huge_pages -= unused_resv_pages; + nr_pages = min(unused_resv_pages, surplus_huge_pages); while (nr_pages) { @@ -1205,12 +1213,13 @@ static int hugetlb_acct_memory(long delta) if (gather_surplus_pages(delta) < 0) goto out; - if (delta > cpuset_mems_nr(free_huge_pages_node)) + if (delta > cpuset_mems_nr(free_huge_pages_node)) { + return_unused_surplus_pages(delta); goto out; + } } ret = 0; - resv_huge_pages += delta; if (delta < 0) return_unused_surplus_pages((unsigned long) -delta); -- GitLab From 348e1e04b5229a481891699ce86da009b793f29e Mon Sep 17 00:00:00 2001 From: Nishanth Aravamudan Date: Tue, 4 Mar 2008 14:29:42 -0800 Subject: [PATCH 486/923] hugetlb: fix pool shrinking while in restricted cpuset Adam Litke noticed that currently we grow the hugepage pool independent of any cpuset the running process may be in, but when shrinking the pool, the cpuset is checked. This leads to inconsistency when shrinking the pool in a restricted cpuset -- an administrator may have been able to grow the pool on a node restricted by a containing cpuset, but they cannot shrink it there. There are two options: either prevent growing of the pool outside of the cpuset or allow shrinking outside of the cpuset. >From previous discussions on linux-mm, /proc/sys/vm/nr_hugepages is an administrative interface that should not be restricted by cpusets. So allow shrinking the pool by removing pages from nodes outside of current's cpuset. Signed-off-by: Nishanth Aravamudan Acked-by: Adam Litke Cc: William Irwin Cc: Lee Schermerhorn Cc: Christoph Lameter Cc: Paul Jackson Cc: David Gibson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/hugetlb.c | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 20e04c64468..dcacc811e70 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -71,7 +71,25 @@ static void enqueue_huge_page(struct page *page) free_huge_pages_node[nid]++; } -static struct page *dequeue_huge_page(struct vm_area_struct *vma, +static struct page *dequeue_huge_page(void) +{ + int nid; + struct page *page = NULL; + + for (nid = 0; nid < MAX_NUMNODES; ++nid) { + if (!list_empty(&hugepage_freelists[nid])) { + page = list_entry(hugepage_freelists[nid].next, + struct page, lru); + list_del(&page->lru); + free_huge_pages--; + free_huge_pages_node[nid]--; + break; + } + } + return page; +} + +static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma, unsigned long address) { int nid; @@ -410,7 +428,7 @@ static struct page *alloc_huge_page_shared(struct vm_area_struct *vma, struct page *page; spin_lock(&hugetlb_lock); - page = dequeue_huge_page(vma, addr); + page = dequeue_huge_page_vma(vma, addr); spin_unlock(&hugetlb_lock); return page ? page : ERR_PTR(-VM_FAULT_OOM); } @@ -425,7 +443,7 @@ static struct page *alloc_huge_page_private(struct vm_area_struct *vma, spin_lock(&hugetlb_lock); if (free_huge_pages > resv_huge_pages) - page = dequeue_huge_page(vma, addr); + page = dequeue_huge_page_vma(vma, addr); spin_unlock(&hugetlb_lock); if (!page) { page = alloc_buddy_huge_page(vma, addr); @@ -578,7 +596,7 @@ static unsigned long set_max_huge_pages(unsigned long count) min_count = max(count, min_count); try_to_free_low(min_count); while (min_count < persistent_huge_pages) { - struct page *page = dequeue_huge_page(NULL, 0); + struct page *page = dequeue_huge_page(); if (!page) break; update_and_free_page(page); -- GitLab From 92587216f8bdf74432ada8a9a1a7caf4c135cf42 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 4 Mar 2008 14:29:43 -0800 Subject: [PATCH 487/923] ext3: fix mount option parsing The "resize" option won't be noticed as it comes after the NULL option, so if you try to mount (or in this case remount) with that option it won't be recognized. Signed-off-by: Josef Bacik Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 18769cc3237..ad536066408 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -806,8 +806,8 @@ static match_table_t tokens = { {Opt_quota, "quota"}, {Opt_usrquota, "usrquota"}, {Opt_barrier, "barrier=%u"}, - {Opt_err, NULL}, {Opt_resize, "resize"}, + {Opt_err, NULL}, }; static ext3_fsblk_t get_sb_block(void **data) -- GitLab From 1913130553aa231644eb4e955b1a2c533fe33d17 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 4 Mar 2008 14:29:43 -0800 Subject: [PATCH 488/923] input: add I2C to config since the driver makes several i2c*() calls Add to help text that the Intel I2C ICH (i801) driver is also needed for this kernel. Add LEDS_CLASS to config since the driver makes les_classdev_*() calls: ERROR: "led_classdev_register" [drivers/input/misc/apanel.ko] undefined! ERROR: "__led_classdev_unregister" [drivers/input/misc/apanel.ko] undefined! Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/input/misc/Kconfig | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 8b10d9f23be..c5263d63aca 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -42,14 +42,14 @@ config INPUT_M68K_BEEP config INPUT_APANEL tristate "Fujitsu Lifebook Application Panel buttons" - depends on X86 - select I2C_I801 + depends on X86 && I2C && LEDS_CLASS select INPUT_POLLDEV select CHECK_SIGNATURE help Say Y here for support of the Application Panel buttons, used on Fujitsu Lifebook. These are attached to the mainboard through - an SMBus interface managed by the I2C Intel ICH (i801) driver. + an SMBus interface managed by the I2C Intel ICH (i801) driver, + which you should also build for this kernel. To compile this driver as a module, choose M here: the module will be called apanel. -- GitLab From b2a5cd6938879b5bcfef0a73c28fea84c49519c2 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Tue, 4 Mar 2008 14:29:44 -0800 Subject: [PATCH 489/923] kprobes: fix a null pointer bug in register_kretprobe() Fix a bug in regiseter_kretprobe() which does not check rp->kp.symbol_name == NULL before calling kprobe_lookup_name. For maintainability, this introduces kprobe_addr helper function which resolves addr field. It is used by register_kprobe and register_kretprobe. Signed-off-by: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Cc: Jim Keniston Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/kprobes.c | 43 ++++++++++++++++++++++++++----------------- 1 file changed, 26 insertions(+), 17 deletions(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index e6a61dcbc57..fcfb580c3af 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -498,27 +498,36 @@ static int __kprobes in_kprobes_functions(unsigned long addr) return 0; } +/* + * If we have a symbol_name argument, look it up and add the offset field + * to it. This way, we can specify a relative address to a symbol. + */ +static kprobe_opcode_t __kprobes *kprobe_addr(struct kprobe *p) +{ + kprobe_opcode_t *addr = p->addr; + if (p->symbol_name) { + if (addr) + return NULL; + kprobe_lookup_name(p->symbol_name, addr); + } + + if (!addr) + return NULL; + return (kprobe_opcode_t *)(((char *)addr) + p->offset); +} + static int __kprobes __register_kprobe(struct kprobe *p, unsigned long called_from) { int ret = 0; struct kprobe *old_p; struct module *probed_mod; + kprobe_opcode_t *addr; - /* - * If we have a symbol_name argument look it up, - * and add it to the address. That way the addr - * field can either be global or relative to a symbol. - */ - if (p->symbol_name) { - if (p->addr) - return -EINVAL; - kprobe_lookup_name(p->symbol_name, p->addr); - } - - if (!p->addr) + addr = kprobe_addr(p); + if (!addr) return -EINVAL; - p->addr = (kprobe_opcode_t *)(((char *)p->addr)+ p->offset); + p->addr = addr; if (!kernel_text_address((unsigned long) p->addr) || in_kprobes_functions((unsigned long) p->addr)) @@ -721,12 +730,12 @@ int __kprobes register_kretprobe(struct kretprobe *rp) int ret = 0; struct kretprobe_instance *inst; int i; - void *addr = rp->kp.addr; + void *addr; if (kretprobe_blacklist_size) { - if (addr == NULL) - kprobe_lookup_name(rp->kp.symbol_name, addr); - addr += rp->kp.offset; + addr = kprobe_addr(&rp->kp); + if (!addr) + return -EINVAL; for (i = 0; kretprobe_blacklist[i].name != NULL; i++) { if (kretprobe_blacklist[i].addr == addr) -- GitLab From 9b37ccfc637be27d9a652fcedc35e6e782c3aa78 Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Thu, 28 Feb 2008 17:11:02 -0500 Subject: [PATCH 490/923] module: allow ndiswrapper to use GPL-only symbols A change after 2.6.24 broke ndiswrapper by accidentally removing its access to GPL-only symbols. Revert that change and add comments about the reasons why ndiswrapper and driverloader are treated in a special way. Signed-off-by: Pavel Roskin Acked-by: Greg KH Acked-by: Ingo Molnar Cc: Rusty Russell Cc: Jon Masters Signed-off-by: Linus Torvalds --- kernel/module.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/kernel/module.c b/kernel/module.c index 901cd6ac2f1..be4807fb90e 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1933,8 +1933,15 @@ static struct module *load_module(void __user *umod, /* Set up license info based on the info section */ set_license(mod, get_modinfo(sechdrs, infoindex, "license")); + /* + * ndiswrapper is under GPL by itself, but loads proprietary modules. + * Don't use add_taint_module(), as it would prevent ndiswrapper from + * using GPL-only symbols it needs. + */ if (strcmp(mod->name, "ndiswrapper") == 0) - add_taint_module(mod, TAINT_PROPRIETARY_MODULE); + add_taint(TAINT_PROPRIETARY_MODULE); + + /* driverloader was caught wrongly pretending to be under GPL */ if (strcmp(mod->name, "driverloader") == 0) add_taint_module(mod, TAINT_PROPRIETARY_MODULE); -- GitLab From 29e8c3c304b62f31b799565c9ee85d42bd163f80 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 4 Mar 2008 20:33:54 -0800 Subject: [PATCH 491/923] Linux 2.6.25-rc4 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index a22978413b6..ae78a31a9de 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 25 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Funky Weasel is Jiggy wit it # *DOCUMENTATION* -- GitLab From 538528de0cb256f65716ab2e9613d9e920f97fe2 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Wed, 13 Feb 2008 11:47:29 +0200 Subject: [PATCH 492/923] ARM: OMAP: Pass logical DMA channel number always to callback handlers This makes parameter passing to DMA handlers uniform between non-chained and chained transfers and makes debugging easier. Additional data like chain_id can be always passed to handlers via callback data if needed. Signed-off-by: Jarkko Nikula Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/dma.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index a46676db811..3e94683c966 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -1705,14 +1705,8 @@ static int omap2_dma_handle_ch(int ch) status = OMAP_DMA_CSR_REG(ch); } - if (likely(dma_chan[ch].callback != NULL)) { - if (dma_chan[ch].chain_id != -1) - dma_chan[ch].callback(dma_chan[ch].chain_id, status, - dma_chan[ch].data); - else - dma_chan[ch].callback(ch, status, dma_chan[ch].data); - - } + if (likely(dma_chan[ch].callback != NULL)) + dma_chan[ch].callback(ch, status, dma_chan[ch].data); OMAP_DMA_CSR_REG(ch) = status; -- GitLab From b8488fbe6d2f32ff4ad2f8f348a50e42389fc727 Mon Sep 17 00:00:00 2001 From: Hiroshi DOYU Date: Thu, 30 Aug 2007 12:46:39 +0300 Subject: [PATCH 493/923] ARM: OMAP: Fix sleep under spinlock for cpufreq [ 10.523437] BUG: sleeping function called from invalid context at kernel/mut6 [ 10.523437] in_atomic():0, irqs_disabled():128 [ 10.523437] [] (dump_stack+0x0/0x14) from [] (__might_sl) [ 10.523437] [] (__might_sleep+0x0/0xd4) from [] (mutex_l) [ 10.523437] r5 = C02F0DE8 r4 = C02F0DF0 [ 10.523437] [] (mutex_lock+0x0/0x44) from [] (clk_get+0x) [ 10.523437] r4 = 00000000 [ 10.523437] [] (clk_get+0x0/0x128) from [] (omap_getspee) [ 10.523437] r8 = 00000002 r7 = 00000000 r6 = C031DAF8 r5 = C0473980 [ 10.523437] r4 = 00000000 [ 10.523437] [] (omap_getspeed+0x0/0x5c) from [] (cpufreq) [ 10.523437] r5 = C0473980 r4 = 00000002 Signed-off-by: Hiroshi DOYU Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/cpu-omap.c | 32 ++++++++++---------------------- 1 file changed, 10 insertions(+), 22 deletions(-) diff --git a/arch/arm/plat-omap/cpu-omap.c b/arch/arm/plat-omap/cpu-omap.c index c0d63b0c61c..d719c15daa5 100644 --- a/arch/arm/plat-omap/cpu-omap.c +++ b/arch/arm/plat-omap/cpu-omap.c @@ -33,43 +33,33 @@ #define MPU_CLK "virt_prcm_set" #endif +static struct clk *mpu_clk; + /* TODO: Add support for SDRAM timing changes */ int omap_verify_speed(struct cpufreq_policy *policy) { - struct clk * mpu_clk; - if (policy->cpu) return -EINVAL; cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - mpu_clk = clk_get(NULL, MPU_CLK); - if (IS_ERR(mpu_clk)) - return PTR_ERR(mpu_clk); + policy->min = clk_round_rate(mpu_clk, policy->min * 1000) / 1000; policy->max = clk_round_rate(mpu_clk, policy->max * 1000) / 1000; cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - clk_put(mpu_clk); - return 0; } unsigned int omap_getspeed(unsigned int cpu) { - struct clk * mpu_clk; unsigned long rate; if (cpu) return 0; - mpu_clk = clk_get(NULL, MPU_CLK); - if (IS_ERR(mpu_clk)) - return 0; rate = clk_get_rate(mpu_clk) / 1000; - clk_put(mpu_clk); - return rate; } @@ -77,14 +67,9 @@ static int omap_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { - struct clk * mpu_clk; struct cpufreq_freqs freqs; int ret = 0; - mpu_clk = clk_get(NULL, MPU_CLK); - if (IS_ERR(mpu_clk)) - return PTR_ERR(mpu_clk); - freqs.old = omap_getspeed(0); freqs.new = clk_round_rate(mpu_clk, target_freq * 1000) / 1000; freqs.cpu = 0; @@ -92,15 +77,12 @@ static int omap_target(struct cpufreq_policy *policy, cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); ret = clk_set_rate(mpu_clk, target_freq * 1000); cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - clk_put(mpu_clk); return ret; } static int __init omap_cpu_init(struct cpufreq_policy *policy) { - struct clk * mpu_clk; - mpu_clk = clk_get(NULL, MPU_CLK); if (IS_ERR(mpu_clk)) return PTR_ERR(mpu_clk); @@ -111,17 +93,23 @@ static int __init omap_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.min_freq = clk_round_rate(mpu_clk, 0) / 1000; policy->cpuinfo.max_freq = clk_round_rate(mpu_clk, VERY_HI_RATE) / 1000; policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - clk_put(mpu_clk); return 0; } +static int omap_cpu_exit(struct cpufreq_policy *policy) +{ + clk_put(mpu_clk); + return 0; +} + static struct cpufreq_driver omap_driver = { .flags = CPUFREQ_STICKY, .verify = omap_verify_speed, .target = omap_target, .get = omap_getspeed, .init = omap_cpu_init, + .exit = omap_cpu_exit, .name = "omap", }; -- GitLab From 8ba55c5c139f9be26b87d3aab9998f54d8d3057a Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 26 Feb 2008 11:10:50 -0800 Subject: [PATCH 494/923] ARM: OMAP: fix false lockdep warnings Remove false lockdep warnings about lock recursion when declaring IRQs as being wake-capable, by marking putting GPIO irq_desc locks into their own class. (Thanks to Peter Zijlstra for helping track down such a small fix to this problem.) Signed-off-by: David Brownell Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/gpio.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 56f4d1394d5..9030495509f 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -1277,6 +1277,11 @@ static struct clk *gpio_fclks[OMAP34XX_NR_GPIOS]; static struct clk *gpio_iclks[OMAP34XX_NR_GPIOS]; #endif +/* This lock class tells lockdep that GPIO irqs are in a different + * category than their parents, so it won't report false recursion. + */ +static struct lock_class_key gpio_lock_class; + static int __init _omap_gpio_init(void) { int i; @@ -1450,6 +1455,7 @@ static int __init _omap_gpio_init(void) #endif for (j = bank->virtual_irq_start; j < bank->virtual_irq_start + gpio_count; j++) { + lockdep_set_class(&irq_desc[j].lock, &gpio_lock_class); set_irq_chip_data(j, bank); if (bank_is_mpuio(bank)) set_irq_chip(j, &mpuio_irq_chip); -- GitLab From cfa9a63a9ad25fd3d3218a4e95f5a93090669f3c Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 26 Feb 2008 11:02:30 -0800 Subject: [PATCH 495/923] ARM: OMAP: fix omap i2c init (regression) In mainline, the "old style" I2C registration was only removed for OMAP2, leading to init-time bugs (regressions) like: sysfs: duplicate filename 'i2c_omap.1' can not be created ------------[ cut here ]------------ WARNING: at fs/sysfs/dir.c:424 sysfs_add_one+0x40/0xd4() Modules linked in: ... deletia ... [] (omap_init_i2c+0x0/0x50) from [] (omap_init_devices+0x10/0x24) r4:c001e000 [] (omap_init_devices+0x0/0x24) from [] (do_initcalls+0x78/0x200) ... deletia ... ---[ end trace ca143223eefdc828 ]--- kobject_add_internal failed for i2c_omap.1 with -EEXIST, don't try to register things with the same name in the same directory. The fix is obvious: remove the old init code, it's no longer needed. Signed-off-by: David Brownell Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/devices.c | 63 ------------------------------------ 1 file changed, 63 deletions(-) diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c index c5dab1d6417..4a53f9ba6c4 100644 --- a/arch/arm/plat-omap/devices.c +++ b/arch/arm/plat-omap/devices.c @@ -88,68 +88,6 @@ EXPORT_SYMBOL(dsp_kfunc_device_register); static inline void omap_init_dsp(void) { } #endif /* CONFIG_OMAP_DSP */ -/*-------------------------------------------------------------------------*/ -#if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE) - -#define OMAP1_I2C_BASE 0xfffb3800 -#define OMAP2_I2C_BASE1 0x48070000 -#define OMAP_I2C_SIZE 0x3f -#define OMAP1_I2C_INT INT_I2C -#define OMAP2_I2C_INT1 56 - -static struct resource i2c_resources1[] = { - { - .start = 0, - .end = 0, - .flags = IORESOURCE_MEM, - }, - { - .start = 0, - .flags = IORESOURCE_IRQ, - }, -}; - -/* DMA not used; works around erratum writing to non-empty i2c fifo */ - -static struct platform_device omap_i2c_device1 = { - .name = "i2c_omap", - .id = 1, - .num_resources = ARRAY_SIZE(i2c_resources1), - .resource = i2c_resources1, -}; - -/* See also arch/arm/mach-omap2/devices.c for second I2C on 24xx */ -static void omap_init_i2c(void) -{ - if (cpu_is_omap24xx()) { - i2c_resources1[0].start = OMAP2_I2C_BASE1; - i2c_resources1[0].end = OMAP2_I2C_BASE1 + OMAP_I2C_SIZE; - i2c_resources1[1].start = OMAP2_I2C_INT1; - } else { - i2c_resources1[0].start = OMAP1_I2C_BASE; - i2c_resources1[0].end = OMAP1_I2C_BASE + OMAP_I2C_SIZE; - i2c_resources1[1].start = OMAP1_I2C_INT; - } - - /* FIXME define and use a boot tag, in case of boards that - * either don't wire up I2C, or chips that mux it differently... - * it can include clocking and address info, maybe more. - */ - if (cpu_is_omap24xx()) { - omap_cfg_reg(M19_24XX_I2C1_SCL); - omap_cfg_reg(L15_24XX_I2C1_SDA); - } else { - omap_cfg_reg(I2C_SCL); - omap_cfg_reg(I2C_SDA); - } - - (void) platform_device_register(&omap_i2c_device1); -} - -#else -static inline void omap_init_i2c(void) {} -#endif - /*-------------------------------------------------------------------------*/ #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE) @@ -501,7 +439,6 @@ static int __init omap_init_devices(void) * in alphabetical order so they're easier to sort through. */ omap_init_dsp(); - omap_init_i2c(); omap_init_kp(); omap_init_mmc(); omap_init_uwire(); -- GitLab From 9be401a2aee69a63c88a0b91d73d3a8db091abda Mon Sep 17 00:00:00 2001 From: Kyungmin Park Date: Mon, 3 Mar 2008 16:36:23 +0900 Subject: [PATCH 496/923] ARM: OMAP: Remove compiler warning when i2c is not set Remove compiler warning when i2c is not set Signed-off-by: Kyungmin Park Acked-by: Jarkko Nikula --- include/asm-arm/arch-omap/common.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/include/asm-arm/arch-omap/common.h b/include/asm-arm/arch-omap/common.h index 442aecbb8f4..224e009e529 100644 --- a/include/asm-arm/arch-omap/common.h +++ b/include/asm-arm/arch-omap/common.h @@ -27,9 +27,7 @@ #ifndef __ARCH_ARM_MACH_OMAP_COMMON_H #define __ARCH_ARM_MACH_OMAP_COMMON_H -#ifdef CONFIG_I2C_OMAP #include -#endif struct sys_timer; @@ -41,7 +39,12 @@ extern int omap_register_i2c_bus(int bus_id, u32 clkrate, struct i2c_board_info const *info, unsigned len); #else -#define omap_register_i2c_bus(a, b, c, d) 0 +static inline int omap_register_i2c_bus(int bus_id, u32 clkrate, + struct i2c_board_info const *info, + unsigned len) +{ + return 0; +} #endif #endif /* __ARCH_ARM_MACH_OMAP_COMMON_H */ -- GitLab From 0cc0a441163b92fbda5fe1886cb6e9876cf08f40 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Thu, 28 Feb 2008 14:44:08 -0800 Subject: [PATCH 497/923] ARM: OMAP1: omap h3 regression and build fix Get rid of build warnings and errors in mainline for H3 boards; not all the H3 updates were correct, it seems like the OMAP1 boards are not getting proper build testing. Also, commit e27a93a944a5ba6a0112750c8243abba86d56e94 introduced a regression related to the tps65013 chip. Signed-off-by: David Brownell Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/board-h3.c | 22 ++++++++++++++++++++++ include/asm-arm/arch-omap/board-h3.h | 2 +- 2 files changed, 23 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c index 6fc516855a8..c3ef1ee5f77 100644 --- a/arch/arm/mach-omap1/board-h3.c +++ b/arch/arm/mach-omap1/board-h3.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -51,6 +52,8 @@ #include #include +#define H3_TS_GPIO 48 + static int h3_keymap[] = { KEY(0, 0, KEY_LEFT), KEY(0, 1, KEY_RIGHT), @@ -373,6 +376,17 @@ static struct platform_device h3_lcd_device = { .id = -1, }; +static struct spi_board_info h3_spi_board_info[] __initdata = { + [0] = { + .modalias = "tsc2101", + .bus_num = 2, + .chip_select = 0, + .irq = OMAP_GPIO_IRQ(H3_TS_GPIO), + .max_speed_hz = 16000000, + /* .platform_data = &tsc_platform_data, */ + }, +}; + static struct omap_mcbsp_reg_cfg mcbsp_regs = { .spcr2 = FREE | FRST | GRST | XRST | XINTM(3), .spcr1 = RINTM(3) | RRST, @@ -457,6 +471,14 @@ static struct omap_board_config_kernel h3_config[] __initdata = { { OMAP_TAG_LCD, &h3_lcd_config }, }; +static struct i2c_board_info __initdata h3_i2c_board_info[] = { + { + I2C_BOARD_INFO("tps65010", 0x48), + .type = "tps65013", + /* .irq = OMAP_GPIO_IRQ(??), */ + }, +}; + static struct omap_gpio_switch h3_gpio_switches[] __initdata = { { .name = "mmc_slot", diff --git a/include/asm-arm/arch-omap/board-h3.h b/include/asm-arm/arch-omap/board-h3.h index 1c2b55c61ca..0f6404435ea 100644 --- a/include/asm-arm/arch-omap/board-h3.h +++ b/include/asm-arm/arch-omap/board-h3.h @@ -36,7 +36,7 @@ #define NR_IRQS (MAXIRQNUM + 1) -extern void __init h3_mmc_init(void); +extern void h3_mmc_init(void); extern void h3_mmc_slot_cover_handler(void *arg, int state); #endif /* __ASM_ARCH_OMAP_H3_H */ -- GitLab From 09be7553959c9947f7cbccbe1c3094bb2e3ffd28 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 3 Mar 2008 01:31:32 -0800 Subject: [PATCH 498/923] ARM: OMAP1: Fix compile for boards depending on old gpio expander The long term fix is to switch boards to use drivers/gpio/pcf857x.c. Signed-off-by: Tony Lindgren --- include/asm-arm/arch-omap/gpioexpander.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/asm-arm/arch-omap/gpioexpander.h b/include/asm-arm/arch-omap/gpioexpander.h index 7a43b0a912e..4eed1f80e2f 100644 --- a/include/asm-arm/arch-omap/gpioexpander.h +++ b/include/asm-arm/arch-omap/gpioexpander.h @@ -18,7 +18,18 @@ /* Function Prototypes for GPIO Expander functions */ +#ifdef CONFIG_GPIOEXPANDER_OMAP int read_gpio_expa(u8 *, int); int write_gpio_expa(u8 , int); +#else +static inline int read_gpio_expa(u8 *val, int addr) +{ + return 0; +} +static inline int write_gpio_expa(u8 val, int addr) +{ + return 0; +} +#endif #endif /* __ASM_ARCH_OMAP_GPIOEXPANDER_H */ -- GitLab From 9221bb1c3a0d5e14df2cca43e22f983676795652 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Thu, 28 Feb 2008 14:40:53 -0800 Subject: [PATCH 499/923] ARM: OMAP1: omap h2 regression fix H2 and H3 were broken on by e27a93a944a5ba6a0112750c8243abba86d56e94, which removed declarations for their tps6501x chips. This resolves that issue for the H2. (Note that this patch *also* broke the isp1301 support on H2; it presumed a not-yet-merged new-style I2c driver.) Signed-off-by: David Brownell Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/board-h2.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c index 070345ee39a..50798772001 100644 --- a/arch/arm/mach-omap1/board-h2.c +++ b/arch/arm/mach-omap1/board-h2.c @@ -350,6 +350,10 @@ static void __init h2_init_smc91x(void) static struct i2c_board_info __initdata h2_i2c_board_info[] = { { + I2C_BOARD_INFO("tps65010", 0x48), + .type = "tps65010", + .irq = OMAP_GPIO_IRQ(58), + }, { I2C_BOARD_INFO("isp1301_omap", 0x2d), .type = "isp1301_omap", .irq = OMAP_GPIO_IRQ(2), -- GitLab From 02bad5f9bc9f1f42d4bb87bb8bf741d4cefe87d6 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Sun, 24 Feb 2008 19:08:26 -0800 Subject: [PATCH 500/923] ARM: OMAP1: omap1/pm.c build fix Build fix: arch/arm/mach-omap1/pm.c: In function 'omap_pm_init': arch/arm/mach-omap1/pm.c:720: warning: passing argument 2 of 'sysfs_create_file' from incompatible pointer type Signed-off-by: David Brownell Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c index 8eb5dcdaead..e6c64e10b7e 100644 --- a/arch/arm/mach-omap1/pm.c +++ b/arch/arm/mach-omap1/pm.c @@ -717,7 +717,7 @@ static int __init omap_pm_init(void) #endif #ifdef CONFIG_OMAP_32K_TIMER - error = sysfs_create_file(power_kobj, &sleep_while_idle_attr); + error = sysfs_create_file(power_kobj, &sleep_while_idle_attr.attr); if (error) printk(KERN_ERR "sysfs_create_file failed: %d\n", error); #endif -- GitLab From a6472533e4553985af775982744b0ba088b5ff8c Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 3 Mar 2008 04:33:30 -0800 Subject: [PATCH 501/923] ARM: OMAP: gpio lockdep updates Fix some spinlock issues reported by lockdep: since the gpio bank locks can be aquired in both irq and non-irq contexts, they need to be consistent about always using the irq-safe variants. Signed-off-by: David Brownell Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/gpio.c | 59 +++++++++++++++++++++++---------------- 1 file changed, 35 insertions(+), 24 deletions(-) diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 9030495509f..66a1455595f 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -333,13 +333,14 @@ static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input) void omap_set_gpio_direction(int gpio, int is_input) { struct gpio_bank *bank; + unsigned long flags; if (check_gpio(gpio) < 0) return; bank = get_gpio_bank(gpio); - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); _set_gpio_direction(bank, get_gpio_index(gpio), is_input); - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); } static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) @@ -406,13 +407,14 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) void omap_set_gpio_dataout(int gpio, int enable) { struct gpio_bank *bank; + unsigned long flags; if (check_gpio(gpio) < 0) return; bank = get_gpio_bank(gpio); - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); _set_gpio_dataout(bank, get_gpio_index(gpio), enable); - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); } int omap_get_gpio_datain(int gpio) @@ -624,6 +626,7 @@ static int gpio_irq_type(unsigned irq, unsigned type) struct gpio_bank *bank; unsigned gpio; int retval; + unsigned long flags; if (!cpu_class_is_omap2() && irq > IH_MPUIO_BASE) gpio = OMAP_MPUIO(irq - IH_MPUIO_BASE); @@ -642,13 +645,13 @@ static int gpio_irq_type(unsigned irq, unsigned type) return -EINVAL; bank = get_irq_chip_data(irq); - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); retval = _set_gpio_triggering(bank, get_gpio_index(gpio), type); if (retval == 0) { irq_desc[irq].status &= ~IRQ_TYPE_SENSE_MASK; irq_desc[irq].status |= type; } - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); return retval; } @@ -830,11 +833,13 @@ static inline void _set_gpio_irqenable(struct gpio_bank *bank, int gpio, int ena */ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) { + unsigned long flags; + switch (bank->method) { #ifdef CONFIG_ARCH_OMAP16XX case METHOD_MPUIO: case METHOD_GPIO_1610: - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); if (enable) { bank->suspend_wakeup |= (1 << gpio); enable_irq_wake(bank->irq); @@ -842,7 +847,7 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) disable_irq_wake(bank->irq); bank->suspend_wakeup &= ~(1 << gpio); } - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); return 0; #endif #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) @@ -853,7 +858,7 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) (bank - gpio_bank) * 32 + gpio); return -EINVAL; } - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); if (enable) { bank->suspend_wakeup |= (1 << gpio); enable_irq_wake(bank->irq); @@ -861,7 +866,7 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) disable_irq_wake(bank->irq); bank->suspend_wakeup &= ~(1 << gpio); } - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); return 0; #endif default: @@ -897,16 +902,17 @@ static int gpio_wake_enable(unsigned int irq, unsigned int enable) int omap_request_gpio(int gpio) { struct gpio_bank *bank; + unsigned long flags; if (check_gpio(gpio) < 0) return -EINVAL; bank = get_gpio_bank(gpio); - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); if (unlikely(bank->reserved_map & (1 << get_gpio_index(gpio)))) { printk(KERN_ERR "omap-gpio: GPIO %d is already reserved!\n", gpio); dump_stack(); - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); return -1; } bank->reserved_map |= (1 << get_gpio_index(gpio)); @@ -925,7 +931,7 @@ int omap_request_gpio(int gpio) __raw_writel(__raw_readl(reg) | (1 << get_gpio_index(gpio)), reg); } #endif - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); return 0; } @@ -933,15 +939,16 @@ int omap_request_gpio(int gpio) void omap_free_gpio(int gpio) { struct gpio_bank *bank; + unsigned long flags; if (check_gpio(gpio) < 0) return; bank = get_gpio_bank(gpio); - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); if (unlikely(!(bank->reserved_map & (1 << get_gpio_index(gpio))))) { printk(KERN_ERR "omap-gpio: GPIO %d wasn't reserved!\n", gpio); dump_stack(); - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); return; } #ifdef CONFIG_ARCH_OMAP16XX @@ -960,7 +967,7 @@ void omap_free_gpio(int gpio) #endif bank->reserved_map &= ~(1 << get_gpio_index(gpio)); _reset_gpio(bank, gpio); - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); } /* @@ -1194,11 +1201,12 @@ static int omap_mpuio_suspend_late(struct platform_device *pdev, pm_message_t me { struct gpio_bank *bank = platform_get_drvdata(pdev); void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT; + unsigned long flags; - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); bank->saved_wakeup = __raw_readl(mask_reg); __raw_writel(0xffff & ~bank->suspend_wakeup, mask_reg); - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); return 0; } @@ -1207,10 +1215,11 @@ static int omap_mpuio_resume_early(struct platform_device *pdev) { struct gpio_bank *bank = platform_get_drvdata(pdev); void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT; + unsigned long flags; - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); __raw_writel(bank->saved_wakeup, mask_reg); - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); return 0; } @@ -1495,6 +1504,7 @@ static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg) void __iomem *wake_status; void __iomem *wake_clear; void __iomem *wake_set; + unsigned long flags; switch (bank->method) { #ifdef CONFIG_ARCH_OMAP16XX @@ -1515,11 +1525,11 @@ static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg) continue; } - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); bank->saved_wakeup = __raw_readl(wake_status); __raw_writel(0xffffffff, wake_clear); __raw_writel(bank->suspend_wakeup, wake_set); - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); } return 0; @@ -1536,6 +1546,7 @@ static int omap_gpio_resume(struct sys_device *dev) struct gpio_bank *bank = &gpio_bank[i]; void __iomem *wake_clear; void __iomem *wake_set; + unsigned long flags; switch (bank->method) { #ifdef CONFIG_ARCH_OMAP16XX @@ -1554,10 +1565,10 @@ static int omap_gpio_resume(struct sys_device *dev) continue; } - spin_lock(&bank->lock); + spin_lock_irqsave(&bank->lock, flags); __raw_writel(0xffffffff, wake_clear); __raw_writel(bank->saved_wakeup, wake_set); - spin_unlock(&bank->lock); + spin_unlock_irqrestore(&bank->lock, flags); } return 0; -- GitLab From bc97f19dc8be1f181f33b4368542c72498f3562a Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 5 Mar 2008 19:05:54 +0800 Subject: [PATCH 502/923] [CRYPTO] digest: Include internal.h for prototypes Every file should include the headers containing the externs for its global code (in this case for struct crypto_{init,exit}_digest_ops()). Signed-off-by: Adrian Bunk Signed-off-by: Herbert Xu --- crypto/digest.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/crypto/digest.c b/crypto/digest.c index 6fd43bddd54..b526cc348b7 100644 --- a/crypto/digest.c +++ b/crypto/digest.c @@ -21,6 +21,8 @@ #include #include +#include "internal.h" + static int init(struct hash_desc *desc) { struct crypto_tfm *tfm = crypto_hash_tfm(desc->tfm); -- GitLab From 9361a492cded45af2c3e7f50dbec9dd6dab49861 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 5 Mar 2008 12:37:07 +0100 Subject: [PATCH 503/923] [S390] Update default configuration. Signed-off-by: Martin Schwidefsky --- arch/s390/defconfig | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/arch/s390/defconfig b/arch/s390/defconfig index 39921f3a968..62f6b5a606d 100644 --- a/arch/s390/defconfig +++ b/arch/s390/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.24 -# Sat Feb 9 12:13:01 2008 +# Linux kernel version: 2.6.25-rc4 +# Wed Mar 5 11:22:59 2008 # CONFIG_MMU=y CONFIG_ZONE_DMA=y @@ -43,12 +43,15 @@ CONFIG_CGROUPS=y # CONFIG_CGROUP_DEBUG is not set CONFIG_CGROUP_NS=y # CONFIG_CPUSETS is not set +CONFIG_GROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y -CONFIG_FAIR_USER_SCHED=y -# CONFIG_FAIR_CGROUP_SCHED is not set +# CONFIG_RT_GROUP_SCHED is not set +CONFIG_USER_SCHED=y +# CONFIG_CGROUP_SCHED is not set # CONFIG_CGROUP_CPUACCT is not set # CONFIG_RESOURCE_COUNTERS is not set CONFIG_SYSFS_DEPRECATED=y +CONFIG_SYSFS_DEPRECATED_V2=y # CONFIG_RELAY is not set CONFIG_NAMESPACES=y CONFIG_UTS_NS=y @@ -85,7 +88,9 @@ CONFIG_SLAB=y # CONFIG_MARKERS is not set CONFIG_HAVE_OPROFILE=y CONFIG_KPROBES=y +CONFIG_KRETPROBES=y CONFIG_HAVE_KPROBES=y +CONFIG_HAVE_KRETPROBES=y CONFIG_PROC_PAGE_MONITOR=y CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y @@ -185,6 +190,7 @@ CONFIG_IPL=y CONFIG_IPL_VM=y CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m +CONFIG_FORCE_MAX_ZONEORDER=9 # CONFIG_PROCESS_DEBUG is not set CONFIG_PFAULT=y # CONFIG_SHARED_KERNEL is not set @@ -435,6 +441,7 @@ CONFIG_DASD_EER=y CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_93CX6 is not set # CONFIG_ENCLOSURE_SERVICES is not set +# CONFIG_HAVE_IDE is not set # # SCSI device support @@ -593,6 +600,7 @@ CONFIG_S390_VMUR=m # # Sonics Silicon Backplane # +# CONFIG_MEMSTICK is not set # # File systems @@ -750,7 +758,6 @@ CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_FRAME_POINTER is not set -CONFIG_FORCED_INLINING=y # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_KPROBES_SANITY_TEST is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -759,6 +766,7 @@ CONFIG_FORCED_INLINING=y # CONFIG_LATENCYTOP is not set CONFIG_SAMPLES=y # CONFIG_SAMPLE_KOBJECT is not set +# CONFIG_SAMPLE_KPROBES is not set # CONFIG_DEBUG_PAGEALLOC is not set # -- GitLab From 5ccd0e43bb916872022df974d0f39337797d9277 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 5 Mar 2008 12:37:08 +0100 Subject: [PATCH 504/923] [S390] idle: Fix machine check handling in idle loop. If a machine check handling is pending when the idle loop is entered default_idle will be left with timer ticks and virtual timer disabled. Fix this by "calling" the idle_chain. Also a BUG_ON(!in_interrupt) in start_hz_timer must be removed since the function now gets called from non interrupt context as well. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/process.c | 4 ++++ arch/s390/kernel/time.c | 2 -- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 1c59ec161cf..ce203154d8c 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -152,6 +152,10 @@ static void default_idle(void) local_mcck_disable(); if (test_thread_flag(TIF_MCCK_PENDING)) { local_mcck_enable(); + /* disable monitor call class 0 */ + __ctl_clear_bit(8, 15); + atomic_notifier_call_chain(&idle_chain, S390_CPU_NOT_IDLE, + hcpu); local_irq_enable(); s390_handle_mcck(); return; diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 76a5dd1b4ce..cb232c15536 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -209,8 +209,6 @@ static void stop_hz_timer(void) */ static void start_hz_timer(void) { - BUG_ON(!in_interrupt()); - if (!cpu_isset(smp_processor_id(), nohz_cpu_mask)) return; account_ticks(get_clock()); -- GitLab From 98c7b388afffdc5699095261b437b286d718270c Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 5 Mar 2008 12:37:09 +0100 Subject: [PATCH 505/923] [S390] Get rid of memcpy gcc warning workaround. Compile smp.o with -Wno-nonnull so gcc stops warning about memcpy being used with a null parameter. Also remove the workaround code and use a char * cast instead of a void * cast to do computations. Cc: Bastian Blank Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/Makefile | 5 +++++ arch/s390/kernel/smp.c | 10 ++-------- 2 files changed, 7 insertions(+), 8 deletions(-) diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index b3b650a93c7..4d3e38392cb 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -4,6 +4,11 @@ EXTRA_AFLAGS := -traditional +# +# Passing null pointers is ok for smp code, since we access the lowcore here. +# +CFLAGS_smp.o := -Wno-nonnull + obj-y := bitmap.o traps.o time.o process.o base.o early.o \ setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \ semaphore.o s390_ext.o debug.o irq.o ipl.o dis.o diag.o diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 818bd09c026..8f894d380a6 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -629,14 +629,8 @@ static int __cpuinit smp_alloc_lowcore(int cpu) panic_stack = __get_free_page(GFP_KERNEL); if (!panic_stack || !async_stack) goto out; - /* - * Only need to copy the first 512 bytes from address 0. But since - * the compiler emits a warning if src == NULL for memcpy use copy_page - * instead. Copies more than needed but this code is not performance - * critical. - */ - copy_page(lowcore, &S390_lowcore); - memset((void *)lowcore + 512, 0, sizeof(*lowcore) - 512); + memcpy(lowcore, &S390_lowcore, 512); + memset((char *)lowcore + 512, 0, sizeof(*lowcore) - 512); lowcore->async_stack = async_stack + ASYNC_SIZE; lowcore->panic_stack = panic_stack + PAGE_SIZE; -- GitLab From 5c12f2406cea24a2c885a8d3e5aa7ab94c65f0d5 Mon Sep 17 00:00:00 2001 From: Stefan Weinhuber Date: Wed, 5 Mar 2008 12:37:10 +0100 Subject: [PATCH 506/923] [S390] dasd: let dasd erp matching recognize alias recovery When a request fails that was started on an alias device then the first recovery step is to retry it on the base device. If the recovery request fails again with the same symptoms, the next step should not be a simple retry, but should be a proper recovery based on sense data, etc. To do so, the dasd recovery functions need to recognize the alias recovery step in the erp chain by comparing the start devices. Signed-off-by: Stefan Weinhuber Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_3990_erp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c index f69714a0e9e..b19db20a0be 100644 --- a/drivers/s390/block/dasd_3990_erp.c +++ b/drivers/s390/block/dasd_3990_erp.c @@ -2310,10 +2310,8 @@ static int dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1, struct dasd_ccw_req *cqr2) { - /* check failed CCW */ - if (cqr1->irb.scsw.cpa != cqr2->irb.scsw.cpa) { - // return 0; /* CCW doesn't match */ - } + if (cqr1->startdev != cqr2->startdev) + return 0; if (cqr1->irb.esw.esw0.erw.cons != cqr2->irb.esw.esw0.erw.cons) return 0; -- GitLab From a5e2383991ee985332854b721ba3e5abbbabf0f2 Mon Sep 17 00:00:00 2001 From: Stefan Weinhuber Date: Wed, 5 Mar 2008 12:37:11 +0100 Subject: [PATCH 507/923] [S390] dasd: fix reference counting in display method for proc/dasd/devices Using the /proc/dasd/devices interface leaves the reference counter of alias devices in an inconsistent state. A process that tries to set such a device offline afterwards will hang. The dasd_devices_show function returns immediately for alias devices and this code path was missing a dasd_put_device call. Signed-off-by: Stefan Weinhuber Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_proc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c index 28a86f07004..556063e8f7a 100644 --- a/drivers/s390/block/dasd_proc.c +++ b/drivers/s390/block/dasd_proc.c @@ -62,8 +62,10 @@ dasd_devices_show(struct seq_file *m, void *v) return 0; if (device->block) block = device->block; - else + else { + dasd_put_device(device); return 0; + } /* Print device number. */ seq_printf(m, "%s", device->cdev->dev.bus_id); /* Print discipline string. */ -- GitLab From fa331ffc56fb8ead0811a89e4a582bbd5f29d714 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Wed, 5 Mar 2008 12:37:12 +0100 Subject: [PATCH 508/923] [S390] sclp_vt220: speed up console output for interactive work Currently an output buffer can wait up to HZ/2 until the buffer is flushed. The wait time is noticeable in interactive tools like mc. Change the value to HZ/20, which seems enough for interactive work. Signed-off-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- drivers/s390/char/sclp_vt220.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index 92f52720179..f7b258dfd52 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -367,7 +367,7 @@ sclp_vt220_timeout(unsigned long data) sclp_vt220_emit_current(); } -#define BUFFER_MAX_DELAY HZ/2 +#define BUFFER_MAX_DELAY HZ/20 /* * Internal implementation of the write function. Write COUNT bytes of data -- GitLab From faa582ca8014d2e1ede5568a813fb0e5c3c078df Mon Sep 17 00:00:00 2001 From: Ralph Wuerthner Date: Wed, 5 Mar 2008 12:37:13 +0100 Subject: [PATCH 509/923] [S390] zcrypt: fix ap_device_list handling In ap_device_probe() we can add the new ap device to the internal device list only if the device probe function successfully returns. Otherwise we might end up with an invalid device in the internal ap device list. Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/ap_bus.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index d0c6fd3b1c1..7b0b8190129 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -490,10 +490,12 @@ static int ap_device_probe(struct device *dev) int rc; ap_dev->drv = ap_drv; - spin_lock_bh(&ap_device_lock); - list_add(&ap_dev->list, &ap_device_list); - spin_unlock_bh(&ap_device_lock); rc = ap_drv->probe ? ap_drv->probe(ap_dev) : -ENODEV; + if (!rc) { + spin_lock_bh(&ap_device_lock); + list_add(&ap_dev->list, &ap_device_list); + spin_unlock_bh(&ap_device_lock); + } return rc; } @@ -532,11 +534,11 @@ static int ap_device_remove(struct device *dev) ap_flush_queue(ap_dev); del_timer_sync(&ap_dev->timeout); - if (ap_drv->remove) - ap_drv->remove(ap_dev); spin_lock_bh(&ap_device_lock); list_del_init(&ap_dev->list); spin_unlock_bh(&ap_device_lock); + if (ap_drv->remove) + ap_drv->remove(ap_dev); spin_lock_bh(&ap_dev->lock); atomic_sub(ap_dev->queue_count, &ap_poll_requests); spin_unlock_bh(&ap_dev->lock); -- GitLab From 684de39bd7957bfb1657a13ccb0c53a474708f2f Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 5 Mar 2008 12:37:14 +0100 Subject: [PATCH 510/923] [S390] Fix IPL from NSS. IPL from NSS didn't work because the memory detection routine omits any memory sections with a size lower than what MAX_ORDER defines. This causes the detection routine to skip the first memory segment which has a size of 1MB. Which later on will let the kernel think that there is no memory available at all. Since in addition the z/VM memory increment size is 1MB force MAX_ORDER to be 9, so we can support 1MB segments. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 9892827b617..1831833c430 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -351,6 +351,10 @@ endchoice source "fs/Kconfig.binfmt" +config FORCE_MAX_ZONEORDER + int + default "9" + config PROCESS_DEBUG bool "Show crashed user process info" help -- GitLab From 208e559155c775ba63e9f6fe59ac6d1e15711d28 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Wed, 5 Mar 2008 12:37:15 +0100 Subject: [PATCH 511/923] [S390] Load disabled wait psw if reipl fails. Normally this should not happen, but it's cleaner to do it that way. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/ipl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 60acdc266db..375232c46c7 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -704,6 +704,7 @@ void reipl_run(struct shutdown_trigger *trigger) default: break; } + disabled_wait((unsigned long) __builtin_return_address(0)); } static void __init reipl_probe(void) -- GitLab From 583b33bc83d24791f11e862290ee0b79d804d2d8 Mon Sep 17 00:00:00 2001 From: Hongjie Yang Date: Wed, 5 Mar 2008 12:37:16 +0100 Subject: [PATCH 512/923] [S390] incorrect reipl nss name. /sys/firmware/reipl/nss/name contains the nss name when defsys or savesys command has been executed. If the defsys or savesys command fails the kernel_nss_name has to be cleared since a reipl on that nss name won't be possible. Signed-off-by: Hongjie Yang Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/early.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 9f7b73b180f..01832c44063 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -88,13 +88,17 @@ static noinline __init void create_kernel_nss(void) __cpcmd(defsys_cmd, NULL, 0, &response); - if (response != 0) + if (response != 0) { + kernel_nss_name[0] = '\0'; return; + } __cpcmd(savesys_cmd, NULL, 0, &response); - if (response != strlen(savesys_cmd)) + if (response != strlen(savesys_cmd)) { + kernel_nss_name[0] = '\0'; return; + } ipl_flags = IPL_NSS_VALID; } -- GitLab From 6ddd68615ae9b21096545d7d6ab0f04113ae8b42 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 26 Feb 2008 13:35:54 -0800 Subject: [PATCH 513/923] pata_hpt*, pata_serverworks: fix UDMA masking When masking, mask out the modes that are unsupported not the ones that are supported. This makes life happier. Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/ata/pata_hpt366.c | 6 +++--- drivers/ata/pata_hpt37x.c | 6 +++--- drivers/ata/pata_serverworks.c | 2 +- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c index 0713872cf65..a742efa0da2 100644 --- a/drivers/ata/pata_hpt366.c +++ b/drivers/ata/pata_hpt366.c @@ -27,7 +27,7 @@ #include #define DRV_NAME "pata_hpt366" -#define DRV_VERSION "0.6.1" +#define DRV_VERSION "0.6.2" struct hpt_clock { u8 xfer_speed; @@ -180,9 +180,9 @@ static unsigned long hpt366_filter(struct ata_device *adev, unsigned long mask) if (hpt_dma_blacklisted(adev, "UDMA", bad_ata33)) mask &= ~ATA_MASK_UDMA; if (hpt_dma_blacklisted(adev, "UDMA3", bad_ata66_3)) - mask &= ~(0x07 << ATA_SHIFT_UDMA); + mask &= ~(0xF8 << ATA_SHIFT_UDMA); if (hpt_dma_blacklisted(adev, "UDMA4", bad_ata66_4)) - mask &= ~(0x0F << ATA_SHIFT_UDMA); + mask &= ~(0xF0 << ATA_SHIFT_UDMA); } return ata_pci_default_filter(adev, mask); } diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c index 68eb34929ce..9a10878b2ad 100644 --- a/drivers/ata/pata_hpt37x.c +++ b/drivers/ata/pata_hpt37x.c @@ -24,7 +24,7 @@ #include #define DRV_NAME "pata_hpt37x" -#define DRV_VERSION "0.6.9" +#define DRV_VERSION "0.6.11" struct hpt_clock { u8 xfer_speed; @@ -281,7 +281,7 @@ static unsigned long hpt370_filter(struct ata_device *adev, unsigned long mask) if (hpt_dma_blacklisted(adev, "UDMA", bad_ata33)) mask &= ~ATA_MASK_UDMA; if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5)) - mask &= ~(0x1F << ATA_SHIFT_UDMA); + mask &= ~(0xE0 << ATA_SHIFT_UDMA); } return ata_pci_default_filter(adev, mask); } @@ -297,7 +297,7 @@ static unsigned long hpt370a_filter(struct ata_device *adev, unsigned long mask) { if (adev->class == ATA_DEV_ATA) { if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5)) - mask &= ~ (0x1F << ATA_SHIFT_UDMA); + mask &= ~(0xE0 << ATA_SHIFT_UDMA); } return ata_pci_default_filter(adev, mask); } diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c index 9c523fbf529..a589c0fa0db 100644 --- a/drivers/ata/pata_serverworks.c +++ b/drivers/ata/pata_serverworks.c @@ -226,7 +226,7 @@ static unsigned long serverworks_csb_filter(struct ata_device *adev, unsigned lo for (i = 0; (p = csb_bad_ata100[i]) != NULL; i++) { if (!strcmp(p, model_num)) - mask &= ~(0x1F << ATA_SHIFT_UDMA); + mask &= ~(0xE0 << ATA_SHIFT_UDMA); } return ata_pci_default_filter(adev, mask); } -- GitLab From a878539ef994787c447a98c2e3ba0fe3dad984ec Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Thu, 28 Feb 2008 15:43:48 -0500 Subject: [PATCH 514/923] ahci: work around ATI SB600 h/w quirk This addresses the recent ATI SB600 errata, where the hardware does not like 256-length PRD entries during FPDMA (aka NCQ). It hurts performance on SB600, but it is more important to get a correct patch eliminating the data corruption/lockups, and then later on tune for performance. We simply limit each command to a maximum of 255 sectors, on SB600. Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 1db93b61907..8a49835bd0f 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -186,6 +186,7 @@ enum { AHCI_HFLAG_NO_MSI = (1 << 5), /* no PCI MSI */ AHCI_HFLAG_NO_PMP = (1 << 6), /* no PMP */ AHCI_HFLAG_NO_HOTPLUG = (1 << 7), /* ignore PxSERR.DIAG.N */ + AHCI_HFLAG_SECT255 = (1 << 8), /* max 255 sectors */ /* ap->flags bits */ @@ -255,6 +256,7 @@ static void ahci_vt8251_error_handler(struct ata_port *ap); static void ahci_p5wdh_error_handler(struct ata_port *ap); static void ahci_post_internal_cmd(struct ata_queued_cmd *qc); static int ahci_port_resume(struct ata_port *ap); +static void ahci_dev_config(struct ata_device *dev); static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl); static void ahci_fill_cmd_slot(struct ahci_port_priv *pp, unsigned int tag, u32 opts); @@ -294,6 +296,8 @@ static const struct ata_port_operations ahci_ops = { .check_altstatus = ahci_check_status, .dev_select = ata_noop_dev_select, + .dev_config = ahci_dev_config, + .tf_read = ahci_tf_read, .qc_defer = sata_pmp_qc_defer_cmd_switch, @@ -425,7 +429,7 @@ static const struct ata_port_info ahci_port_info[] = { /* board_ahci_sb600 */ { AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL | - AHCI_HFLAG_32BIT_ONLY | AHCI_HFLAG_NO_PMP), + AHCI_HFLAG_SECT255 | AHCI_HFLAG_NO_PMP), .flags = AHCI_FLAG_COMMON, .link_flags = AHCI_LFLAG_COMMON, .pio_mask = 0x1f, /* pio0-4 */ @@ -1176,6 +1180,14 @@ static void ahci_init_controller(struct ata_host *host) VPRINTK("HOST_CTL 0x%x\n", tmp); } +static void ahci_dev_config(struct ata_device *dev) +{ + struct ahci_host_priv *hpriv = dev->link->ap->host->private_data; + + if (hpriv->flags & AHCI_HFLAG_SECT255) + dev->max_sectors = 255; +} + static unsigned int ahci_dev_classify(struct ata_port *ap) { void __iomem *port_mmio = ahci_port_base(ap); -- GitLab From 50a29aec9c47d26e869df83ef1d69e3b63c83bf4 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Tue, 4 Mar 2008 13:26:53 -0600 Subject: [PATCH 515/923] [SCSI] qla4xxx: fix host reset dpc race The host reset callout could be starting to reset the hba at the same time the dpc thread is. This creates lots of problems because they both want to do wierd things with the firmware and interrupts, etc. This patch just has the host reset function fully shutdown the dpc thread before resetting the hba. This patch also moves the setting of the session online bit to fix a potential race with the dpc thread and iscsi recovery thread. Signed-off-by: Mike Christie Acked-by: David C Somayajulu Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_init.c | 2 +- drivers/scsi/qla4xxx/ql4_os.c | 13 +++++++++---- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 10b3b9a620f..109c5f5985e 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -1299,9 +1299,9 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, ddb_entry->fw_ddb_device_state = state; /* Device is back online. */ if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { + atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); atomic_set(&ddb_entry->port_down_timer, ha->port_down_retry_count); - atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); atomic_set(&ddb_entry->relogin_retry_count, 0); atomic_set(&ddb_entry->relogin_timer, 0); clear_bit(DF_RELOGIN, &ddb_entry->flags); diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index c3c59d76303..10a233e65bc 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -864,8 +864,9 @@ static void qla4xxx_flush_active_srbs(struct scsi_qla_host *ha) * qla4xxx_recover_adapter - recovers adapter after a fatal error * @ha: Pointer to host adapter structure. * @renew_ddb_list: Indicates what to do with the adapter's ddb list - * after adapter recovery has completed. - * 0=preserve ddb list, 1=destroy and rebuild ddb list + * + * renew_ddb_list value can be 0=preserve ddb list, 1=destroy and rebuild + * ddb list. **/ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha, uint8_t renew_ddb_list) @@ -874,6 +875,7 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha, /* Stall incoming I/O until we are done */ clear_bit(AF_ONLINE, &ha->flags); + DEBUG2(printk("scsi%ld: %s calling qla4xxx_cmd_wait\n", ha->host_no, __func__)); @@ -1600,9 +1602,12 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) return FAILED; } - if (qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST) == QLA_SUCCESS) { + /* make sure the dpc thread is stopped while we reset the hba */ + clear_bit(AF_ONLINE, &ha->flags); + flush_workqueue(ha->dpc_thread); + + if (qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST) == QLA_SUCCESS) return_status = SUCCESS; - } dev_info(&ha->pdev->dev, "HOST RESET %s.\n", return_status == FAILED ? "FAILED" : "SUCCEDED"); -- GitLab From 024f801f528220edc89275a724ea00cd18c5ebb7 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Tue, 4 Mar 2008 13:26:54 -0600 Subject: [PATCH 516/923] [SCSI] qla4xxx: regression - add start scan callout We are seeing EXIST errors from sysfs during device addition. We need a start scan callout so we do not start scanning sessions found during hba setup, before the async scsi scan code is ready. Signed-off-by: Mike Christie Acked-by: David C Somayajulu Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_os.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 10a233e65bc..8b92f348f02 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -75,6 +75,7 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); static int qla4xxx_slave_alloc(struct scsi_device *device); static int qla4xxx_slave_configure(struct scsi_device *device); static void qla4xxx_slave_destroy(struct scsi_device *sdev); +static void qla4xxx_scan_start(struct Scsi_Host *shost); static struct scsi_host_template qla4xxx_driver_template = { .module = THIS_MODULE, @@ -90,6 +91,7 @@ static struct scsi_host_template qla4xxx_driver_template = { .slave_destroy = qla4xxx_slave_destroy, .scan_finished = iscsi_scan_finished, + .scan_start = qla4xxx_scan_start, .this_id = -1, .cmd_per_lun = 3, @@ -299,6 +301,18 @@ struct ddb_entry *qla4xxx_alloc_sess(struct scsi_qla_host *ha) return ddb_entry; } +static void qla4xxx_scan_start(struct Scsi_Host *shost) +{ + struct scsi_qla_host *ha = shost_priv(shost); + struct ddb_entry *ddb_entry, *ddbtemp; + + /* finish setup of sessions that were already setup in firmware */ + list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) { + if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) + qla4xxx_add_sess(ddb_entry); + } +} + /* * Timer routines */ @@ -1178,7 +1192,6 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, int ret = -ENODEV, status; struct Scsi_Host *host; struct scsi_qla_host *ha; - struct ddb_entry *ddb_entry, *ddbtemp; uint8_t init_retry_count = 0; char buf[34]; @@ -1297,13 +1310,6 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, if (ret) goto probe_failed; - /* Update transport device information for all devices. */ - list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) { - if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) - if (qla4xxx_add_sess(ddb_entry)) - goto remove_host; - } - printk(KERN_INFO " QLogic iSCSI HBA Driver version: %s\n" " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", @@ -1313,10 +1319,6 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, scsi_scan_host(host); return 0; -remove_host: - qla4xxx_free_ddb_list(ha); - scsi_remove_host(host); - probe_failed: qla4xxx_free_adapter(ha); scsi_host_put(ha->host); -- GitLab From 45ab33b6c190c4a8c58f1d13be2ff89ee62024ba Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Tue, 4 Mar 2008 13:26:55 -0600 Subject: [PATCH 517/923] [SCSI] iscsi class: regression - fix races with state manipulation and blocking/unblocking For qla4xxx, we could be starting a session, but some error (network, target, IO from a device that got started, etc) could cause the session to fail and curring the block/unblock and state manipulation could race with each other. This patch just has those operations done in the single threaded iscsi eh work queue, so that way they are serialized. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/scsi_transport_iscsi.c | 76 ++++++++++++++++++----------- include/scsi/scsi_transport_iscsi.h | 2 + 2 files changed, 50 insertions(+), 28 deletions(-) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index dfb026b95a6..ca7bb6f63bd 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -373,24 +373,25 @@ static void session_recovery_timedout(struct work_struct *work) scsi_target_unblock(&session->dev); } -static void __iscsi_unblock_session(struct iscsi_cls_session *session) -{ - if (!cancel_delayed_work(&session->recovery_work)) - flush_workqueue(iscsi_eh_timer_workq); - scsi_target_unblock(&session->dev); -} - -void iscsi_unblock_session(struct iscsi_cls_session *session) +static void __iscsi_unblock_session(struct work_struct *work) { + struct iscsi_cls_session *session = + container_of(work, struct iscsi_cls_session, + unblock_work); struct Scsi_Host *shost = iscsi_session_to_shost(session); struct iscsi_host *ihost = shost->shost_data; unsigned long flags; + /* + * The recovery and unblock work get run from the same workqueue, + * so try to cancel it if it was going to run after this unblock. + */ + cancel_delayed_work(&session->recovery_work); spin_lock_irqsave(&session->lock, flags); session->state = ISCSI_SESSION_LOGGED_IN; spin_unlock_irqrestore(&session->lock, flags); - - __iscsi_unblock_session(session); + /* start IO */ + scsi_target_unblock(&session->dev); /* * Only do kernel scanning if the driver is properly hooked into * the async scanning code (drivers like iscsi_tcp do login and @@ -401,20 +402,43 @@ void iscsi_unblock_session(struct iscsi_cls_session *session) atomic_inc(&ihost->nr_scans); } } + +/** + * iscsi_unblock_session - set a session as logged in and start IO. + * @session: iscsi session + * + * Mark a session as ready to accept IO. + */ +void iscsi_unblock_session(struct iscsi_cls_session *session) +{ + queue_work(iscsi_eh_timer_workq, &session->unblock_work); + /* + * make sure all the events have completed before tell the driver + * it is safe + */ + flush_workqueue(iscsi_eh_timer_workq); +} EXPORT_SYMBOL_GPL(iscsi_unblock_session); -void iscsi_block_session(struct iscsi_cls_session *session) +static void __iscsi_block_session(struct work_struct *work) { + struct iscsi_cls_session *session = + container_of(work, struct iscsi_cls_session, + block_work); unsigned long flags; spin_lock_irqsave(&session->lock, flags); session->state = ISCSI_SESSION_FAILED; spin_unlock_irqrestore(&session->lock, flags); - scsi_target_block(&session->dev); queue_delayed_work(iscsi_eh_timer_workq, &session->recovery_work, session->recovery_tmo * HZ); } + +void iscsi_block_session(struct iscsi_cls_session *session) +{ + queue_work(iscsi_eh_timer_workq, &session->block_work); +} EXPORT_SYMBOL_GPL(iscsi_block_session); static void __iscsi_unbind_session(struct work_struct *work) @@ -463,6 +487,8 @@ iscsi_alloc_session(struct Scsi_Host *shost, INIT_DELAYED_WORK(&session->recovery_work, session_recovery_timedout); INIT_LIST_HEAD(&session->host_list); INIT_LIST_HEAD(&session->sess_list); + INIT_WORK(&session->unblock_work, __iscsi_unblock_session); + INIT_WORK(&session->block_work, __iscsi_block_session); INIT_WORK(&session->unbind_work, __iscsi_unbind_session); INIT_WORK(&session->scan_work, iscsi_scan_session); spin_lock_init(&session->lock); @@ -575,24 +601,25 @@ void iscsi_remove_session(struct iscsi_cls_session *session) list_del(&session->sess_list); spin_unlock_irqrestore(&sesslock, flags); + /* make sure there are no blocks/unblocks queued */ + flush_workqueue(iscsi_eh_timer_workq); + /* make sure the timedout callout is not running */ + if (!cancel_delayed_work(&session->recovery_work)) + flush_workqueue(iscsi_eh_timer_workq); /* * If we are blocked let commands flow again. The lld or iscsi * layer should set up the queuecommand to fail commands. + * We assume that LLD will not be calling block/unblock while + * removing the session. */ spin_lock_irqsave(&session->lock, flags); session->state = ISCSI_SESSION_FREE; spin_unlock_irqrestore(&session->lock, flags); - __iscsi_unblock_session(session); - __iscsi_unbind_session(&session->unbind_work); - /* flush running scans */ + scsi_target_unblock(&session->dev); + /* flush running scans then delete devices */ flush_workqueue(ihost->scan_workq); - /* - * If the session dropped while removing devices then we need to make - * sure it is not blocked - */ - if (!cancel_delayed_work(&session->recovery_work)) - flush_workqueue(iscsi_eh_timer_workq); + __iscsi_unbind_session(&session->unbind_work); /* hw iscsi may not have removed all connections from session */ err = device_for_each_child(&session->dev, NULL, @@ -802,23 +829,16 @@ EXPORT_SYMBOL_GPL(iscsi_recv_pdu); void iscsi_conn_error(struct iscsi_cls_conn *conn, enum iscsi_err error) { - struct iscsi_cls_session *session = iscsi_conn_to_session(conn); struct nlmsghdr *nlh; struct sk_buff *skb; struct iscsi_uevent *ev; struct iscsi_internal *priv; int len = NLMSG_SPACE(sizeof(*ev)); - unsigned long flags; priv = iscsi_if_transport_lookup(conn->transport); if (!priv) return; - spin_lock_irqsave(&session->lock, flags); - if (session->state == ISCSI_SESSION_LOGGED_IN) - session->state = ISCSI_SESSION_FAILED; - spin_unlock_irqrestore(&session->lock, flags); - skb = alloc_skb(len, GFP_ATOMIC); if (!skb) { iscsi_cls_conn_printk(KERN_ERR, conn, "gracefully ignored " diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index dbc96ef4cc7..aab1eae2ec4 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -177,6 +177,8 @@ struct iscsi_cls_session { struct list_head host_list; struct iscsi_transport *transport; spinlock_t lock; + struct work_struct block_work; + struct work_struct unblock_work; struct work_struct scan_work; struct work_struct unbind_work; -- GitLab From 0db4a8a99f6a8534c526e8c9d4b13d098400d485 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Wed, 5 Mar 2008 14:20:57 -0500 Subject: [PATCH 518/923] [CPUFREQ] Fix missing cpufreq_cpu_put() call in ->show refactor to use gotos instead of explicit exit paths Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 89a29cd9378..6602e1d02de 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -671,13 +671,13 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr ,char * buf) { struct cpufreq_policy * policy = to_policy(kobj); struct freq_attr * fattr = to_attr(attr); - ssize_t ret; + ssize_t ret = -EINVAL; policy = cpufreq_cpu_get(policy->cpu); if (!policy) - return -EINVAL; + goto no_policy; if (lock_policy_rwsem_read(policy->cpu) < 0) - return -EINVAL; + goto fail; if (fattr->show) ret = fattr->show(policy, buf); @@ -685,8 +685,9 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr ,char * buf) ret = -EIO; unlock_policy_rwsem_read(policy->cpu); - +fail: cpufreq_cpu_put(policy); +no_policy: return ret; } -- GitLab From a07530b44547a892dae59f4e0f141f4e6f5e2e40 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Wed, 5 Mar 2008 14:22:25 -0500 Subject: [PATCH 519/923] [CPUFREQ] Fix missing cpufreq_cpu_put() call in ->store refactor to use gotos instead of explicit exit paths Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 6602e1d02de..5a639b173d5 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -696,13 +696,13 @@ static ssize_t store(struct kobject * kobj, struct attribute * attr, { struct cpufreq_policy * policy = to_policy(kobj); struct freq_attr * fattr = to_attr(attr); - ssize_t ret; + ssize_t ret = -EINVAL; policy = cpufreq_cpu_get(policy->cpu); if (!policy) - return -EINVAL; + goto no_policy; if (lock_policy_rwsem_write(policy->cpu) < 0) - return -EINVAL; + goto fail; if (fattr->store) ret = fattr->store(policy, buf, count); @@ -710,8 +710,9 @@ static ssize_t store(struct kobject * kobj, struct attribute * attr, ret = -EIO; unlock_policy_rwsem_write(policy->cpu); - +fail: cpufreq_cpu_put(policy); +no_policy: return ret; } -- GitLab From 0e5aa8d6218f9914b23e492debf653bda5598af3 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Fri, 15 Feb 2008 18:11:14 -0500 Subject: [PATCH 520/923] [CPUFREQ] Remove debugging message from e_powersaver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We don't need to printk a message every time we transition. Leave the code there, but ifdef'd out, as it's useful when adding support for new processors. Reported-by: Petr TitÄ›ra Signed-off-by: Dave Jones --- arch/x86/kernel/cpu/cpufreq/e_powersaver.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c index 39f8cb18296..c2f930d8664 100644 --- a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c +++ b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c @@ -55,7 +55,6 @@ static int eps_set_state(struct eps_cpu_data *centaur, { struct cpufreq_freqs freqs; u32 lo, hi; - u8 current_multiplier, current_voltage; int err = 0; int i; @@ -95,6 +94,10 @@ postchange: rdmsr(MSR_IA32_PERF_STATUS, lo, hi); freqs.new = centaur->fsb * ((lo >> 8) & 0xff); +#ifdef DEBUG + { + u8 current_multiplier, current_voltage; + /* Print voltage and multiplier */ rdmsr(MSR_IA32_PERF_STATUS, lo, hi); current_voltage = lo & 0xff; @@ -103,7 +106,8 @@ postchange: current_multiplier = (lo >> 8) & 0xff; printk(KERN_INFO "eps: Current multiplier = %d\n", current_multiplier); - + } +#endif cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); return err; } -- GitLab From f6ebef30e21638417f8f5443ba393d63a0c27e2b Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 17 Feb 2008 13:22:52 +0100 Subject: [PATCH 521/923] [CPUFREQ] fix section mismatch warnings Fix the following warnings: WARNING: vmlinux.o(.text+0xfe6711): Section mismatch in reference from the function cpufreq_unregister_driver() to the variable .cpuinit.data:cpufreq_cpu_notifier WARNING: vmlinux.o(.text+0xfe68af): Section mismatch in reference from the function cpufreq_register_driver() to the variable .cpuinit.data:cpufreq_cpu_notifier WARNING: vmlinux.o(.exit.text+0xc4fa): Section mismatch in reference from the function cpufreq_stats_exit() to the variable .cpuinit.data:cpufreq_stat_cpu_notifier The warnings were casued by references to unregister_hotcpu_notifier() from normal functions or exit functions. This is flagged by modpost as a potential error because it does not know that for the non HOTPLUG_CPU scenario the unregister_hotcpu_notifier() is a nop. Silence the warning by replacing the __initdata annotation with a __refdata annotation. Signed-off-by: Sam Ravnborg Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq.c | 2 +- drivers/cpufreq/cpufreq_stats.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 5a639b173d5..35a26a3e5f6 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1777,7 +1777,7 @@ static int __cpuinit cpufreq_cpu_callback(struct notifier_block *nfb, return NOTIFY_OK; } -static struct notifier_block __cpuinitdata cpufreq_cpu_notifier = +static struct notifier_block __refdata cpufreq_cpu_notifier = { .notifier_call = cpufreq_cpu_callback, }; diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 1b8312b0200..070421a5480 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -323,7 +323,7 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb, return NOTIFY_OK; } -static struct notifier_block cpufreq_stat_cpu_notifier __cpuinitdata = +static struct notifier_block cpufreq_stat_cpu_notifier __refdata = { .notifier_call = cpufreq_stat_cpu_callback, }; -- GitLab From 51f39eae14b4874618e73281c236e3a1c1572d4d Mon Sep 17 00:00:00 2001 From: Krzysztof Oledzki Date: Tue, 4 Mar 2008 14:56:23 -0800 Subject: [PATCH 522/923] [SCSI] mpt fusion: don't oops if NumPhys==0 Don't oops if NumPhys==0, instead return -ENODEV. This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=9909 Signed-off-by: Krzysztof Piotr Oledzki Acked-by: Eric Moore Signed-off-by: Andrew Morton Signed-off-by: James Bottomley --- drivers/message/fusion/mptsas.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index f77b329f692..78734e25edd 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1701,6 +1701,11 @@ mptsas_sas_expander_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info, if (error) goto out_free_consistent; + if (!buffer->NumPhys) { + error = -ENODEV; + goto out_free_consistent; + } + /* save config data */ port_info->num_phys = buffer->NumPhys; port_info->phy_info = kcalloc(port_info->num_phys, -- GitLab From e0007529893c1c064be90bd21422ca0da4a0198e Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Wed, 5 Mar 2008 10:31:54 -0500 Subject: [PATCH 523/923] LSM/SELinux: Interfaces to allow FS to control mount options Introduce new LSM interfaces to allow an FS to deal with their own mount options. This includes a new string parsing function exported from the LSM that an FS can use to get a security data blob and a new security data blob. This is particularly useful for an FS which uses binary mount data, like NFS, which does not pass strings into the vfs to be handled by the loaded LSM. Also fix a BUG() in both SELinux and SMACK when dealing with binary mount data. If the binary mount data is less than one page the copy_page() in security_sb_copy_data() can cause an illegal page fault and boom. Remove all NFSisms from the SELinux code since they were broken by past NFS changes. Signed-off-by: Eric Paris Acked-by: Stephen Smalley Acked-by: Casey Schaufler Signed-off-by: James Morris --- fs/super.c | 4 +- include/linux/security.h | 99 ++++++++++++---- security/dummy.c | 23 ++-- security/security.c | 23 ++-- security/selinux/hooks.c | 175 +++++++++++++++------------- security/selinux/include/security.h | 5 + security/smack/smack_lsm.c | 9 +- 7 files changed, 204 insertions(+), 134 deletions(-) diff --git a/fs/super.c b/fs/super.c index 88811f60c8d..010446d8c40 100644 --- a/fs/super.c +++ b/fs/super.c @@ -870,12 +870,12 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void if (!mnt) goto out; - if (data) { + if (data && !(type->fs_flags & FS_BINARY_MOUNTDATA)) { secdata = alloc_secdata(); if (!secdata) goto out_mnt; - error = security_sb_copy_data(type, data, secdata); + error = security_sb_copy_data(data, secdata); if (error) goto out_free_secdata; } diff --git a/include/linux/security.h b/include/linux/security.h index fe52cdeab0a..b07357ca213 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -34,12 +34,6 @@ #include #include -/* only a char in selinux superblock security struct flags */ -#define FSCONTEXT_MNT 0x01 -#define CONTEXT_MNT 0x02 -#define ROOTCONTEXT_MNT 0x04 -#define DEFCONTEXT_MNT 0x08 - extern unsigned securebits; struct ctl_table; @@ -114,6 +108,32 @@ struct request_sock; #ifdef CONFIG_SECURITY +struct security_mnt_opts { + char **mnt_opts; + int *mnt_opts_flags; + int num_mnt_opts; +}; + +static inline void security_init_mnt_opts(struct security_mnt_opts *opts) +{ + opts->mnt_opts = NULL; + opts->mnt_opts_flags = NULL; + opts->num_mnt_opts = 0; +} + +static inline void security_free_mnt_opts(struct security_mnt_opts *opts) +{ + int i; + if (opts->mnt_opts) + for(i = 0; i < opts->num_mnt_opts; i++) + kfree(opts->mnt_opts[i]); + kfree(opts->mnt_opts); + opts->mnt_opts = NULL; + kfree(opts->mnt_opts_flags); + opts->mnt_opts_flags = NULL; + opts->num_mnt_opts = 0; +} + /** * struct security_operations - main security structure * @@ -262,19 +282,19 @@ struct request_sock; * @sb_get_mnt_opts: * Get the security relevant mount options used for a superblock * @sb the superblock to get security mount options from - * @mount_options array for pointers to mount options - * @mount_flags array of ints specifying what each mount options is - * @num_opts number of options in the arrays + * @opts binary data structure containing all lsm mount data * @sb_set_mnt_opts: * Set the security relevant mount options used for a superblock * @sb the superblock to set security mount options for - * @mount_options array for pointers to mount options - * @mount_flags array of ints specifying what each mount options is - * @num_opts number of options in the arrays + * @opts binary data structure containing all lsm mount data * @sb_clone_mnt_opts: * Copy all security options from a given superblock to another * @oldsb old superblock which contain information to clone * @newsb new superblock which needs filled in + * @sb_parse_opts_str: + * Parse a string of security data filling in the opts structure + * @options string containing all mount options known by the LSM + * @opts binary data structure usable by the LSM * * Security hooks for inode operations. * @@ -1238,8 +1258,7 @@ struct security_operations { int (*sb_alloc_security) (struct super_block * sb); void (*sb_free_security) (struct super_block * sb); - int (*sb_copy_data)(struct file_system_type *type, - void *orig, void *copy); + int (*sb_copy_data)(char *orig, char *copy); int (*sb_kern_mount) (struct super_block *sb, void *data); int (*sb_statfs) (struct dentry *dentry); int (*sb_mount) (char *dev_name, struct nameidata * nd, @@ -1257,12 +1276,12 @@ struct security_operations { void (*sb_post_pivotroot) (struct nameidata * old_nd, struct nameidata * new_nd); int (*sb_get_mnt_opts) (const struct super_block *sb, - char ***mount_options, int **flags, - int *num_opts); - int (*sb_set_mnt_opts) (struct super_block *sb, char **mount_options, - int *flags, int num_opts); + struct security_mnt_opts *opts); + int (*sb_set_mnt_opts) (struct super_block *sb, + struct security_mnt_opts *opts); void (*sb_clone_mnt_opts) (const struct super_block *oldsb, struct super_block *newsb); + int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts); int (*inode_alloc_security) (struct inode *inode); void (*inode_free_security) (struct inode *inode); @@ -1507,7 +1526,7 @@ int security_bprm_check(struct linux_binprm *bprm); int security_bprm_secureexec(struct linux_binprm *bprm); int security_sb_alloc(struct super_block *sb); void security_sb_free(struct super_block *sb); -int security_sb_copy_data(struct file_system_type *type, void *orig, void *copy); +int security_sb_copy_data(char *orig, char *copy); int security_sb_kern_mount(struct super_block *sb, void *data); int security_sb_statfs(struct dentry *dentry); int security_sb_mount(char *dev_name, struct nameidata *nd, @@ -1520,12 +1539,12 @@ void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *d void security_sb_post_addmount(struct vfsmount *mnt, struct nameidata *mountpoint_nd); int security_sb_pivotroot(struct nameidata *old_nd, struct nameidata *new_nd); void security_sb_post_pivotroot(struct nameidata *old_nd, struct nameidata *new_nd); -int security_sb_get_mnt_opts(const struct super_block *sb, char ***mount_options, - int **flags, int *num_opts); -int security_sb_set_mnt_opts(struct super_block *sb, char **mount_options, - int *flags, int num_opts); +int security_sb_get_mnt_opts(const struct super_block *sb, + struct security_mnt_opts *opts); +int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts); void security_sb_clone_mnt_opts(const struct super_block *oldsb, struct super_block *newsb); +int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts); int security_inode_alloc(struct inode *inode); void security_inode_free(struct inode *inode); @@ -1635,6 +1654,16 @@ int security_secctx_to_secid(char *secdata, u32 seclen, u32 *secid); void security_release_secctx(char *secdata, u32 seclen); #else /* CONFIG_SECURITY */ +struct security_mnt_opts { +}; + +static inline void security_init_mnt_opts(struct security_mnt_opts *opts) +{ +} + +static inline void security_free_mnt_opts(struct security_mnt_opts *opts) +{ +} /* * This is the default capabilities functionality. Most of these functions @@ -1762,8 +1791,7 @@ static inline int security_sb_alloc (struct super_block *sb) static inline void security_sb_free (struct super_block *sb) { } -static inline int security_sb_copy_data (struct file_system_type *type, - void *orig, void *copy) +static inline int security_sb_copy_data (char *orig, char *copy) { return 0; } @@ -1819,6 +1847,27 @@ static inline int security_sb_pivotroot (struct nameidata *old_nd, static inline void security_sb_post_pivotroot (struct nameidata *old_nd, struct nameidata *new_nd) { } +static inline int security_sb_get_mnt_opts(const struct super_block *sb, + struct security_mnt_opts *opts) +{ + security_init_mnt_opts(opts); + return 0; +} + +static inline int security_sb_set_mnt_opts(struct super_block *sb, + struct security_mnt_opts *opts) +{ + return 0; +} + +static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb, + struct super_block *newsb) +{ } + +static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) +{ + return 0; +} static inline int security_inode_alloc (struct inode *inode) { diff --git a/security/dummy.c b/security/dummy.c index 649326bf64e..78d8f92310a 100644 --- a/security/dummy.c +++ b/security/dummy.c @@ -181,8 +181,7 @@ static void dummy_sb_free_security (struct super_block *sb) return; } -static int dummy_sb_copy_data (struct file_system_type *type, - void *orig, void *copy) +static int dummy_sb_copy_data (char *orig, char *copy) { return 0; } @@ -245,19 +244,17 @@ static void dummy_sb_post_pivotroot (struct nameidata *old_nd, struct nameidata return; } -static int dummy_sb_get_mnt_opts(const struct super_block *sb, char ***mount_options, - int **flags, int *num_opts) +static int dummy_sb_get_mnt_opts(const struct super_block *sb, + struct security_mnt_opts *opts) { - *mount_options = NULL; - *flags = NULL; - *num_opts = 0; + security_init_mnt_opts(opts); return 0; } -static int dummy_sb_set_mnt_opts(struct super_block *sb, char **mount_options, - int *flags, int num_opts) +static int dummy_sb_set_mnt_opts(struct super_block *sb, + struct security_mnt_opts *opts) { - if (unlikely(num_opts)) + if (unlikely(opts->num_mnt_opts)) return -EOPNOTSUPP; return 0; } @@ -268,6 +265,11 @@ static void dummy_sb_clone_mnt_opts(const struct super_block *oldsb, return; } +static int dummy_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) +{ + return 0; +} + static int dummy_inode_alloc_security (struct inode *inode) { return 0; @@ -1028,6 +1030,7 @@ void security_fixup_ops (struct security_operations *ops) set_to_dummy_if_null(ops, sb_get_mnt_opts); set_to_dummy_if_null(ops, sb_set_mnt_opts); set_to_dummy_if_null(ops, sb_clone_mnt_opts); + set_to_dummy_if_null(ops, sb_parse_opts_str); set_to_dummy_if_null(ops, inode_alloc_security); set_to_dummy_if_null(ops, inode_free_security); set_to_dummy_if_null(ops, inode_init_security); diff --git a/security/security.c b/security/security.c index d15e56cbaad..b1387a6b416 100644 --- a/security/security.c +++ b/security/security.c @@ -244,10 +244,11 @@ void security_sb_free(struct super_block *sb) security_ops->sb_free_security(sb); } -int security_sb_copy_data(struct file_system_type *type, void *orig, void *copy) +int security_sb_copy_data(char *orig, char *copy) { - return security_ops->sb_copy_data(type, orig, copy); + return security_ops->sb_copy_data(orig, copy); } +EXPORT_SYMBOL(security_sb_copy_data); int security_sb_kern_mount(struct super_block *sb, void *data) { @@ -306,24 +307,30 @@ void security_sb_post_pivotroot(struct nameidata *old_nd, struct nameidata *new_ } int security_sb_get_mnt_opts(const struct super_block *sb, - char ***mount_options, - int **flags, int *num_opts) + struct security_mnt_opts *opts) { - return security_ops->sb_get_mnt_opts(sb, mount_options, flags, num_opts); + return security_ops->sb_get_mnt_opts(sb, opts); } int security_sb_set_mnt_opts(struct super_block *sb, - char **mount_options, - int *flags, int num_opts) + struct security_mnt_opts *opts) { - return security_ops->sb_set_mnt_opts(sb, mount_options, flags, num_opts); + return security_ops->sb_set_mnt_opts(sb, opts); } +EXPORT_SYMBOL(security_sb_set_mnt_opts); void security_sb_clone_mnt_opts(const struct super_block *oldsb, struct super_block *newsb) { security_ops->sb_clone_mnt_opts(oldsb, newsb); } +EXPORT_SYMBOL(security_sb_clone_mnt_opts); + +int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) +{ + return security_ops->sb_parse_opts_str(options, opts); +} +EXPORT_SYMBOL(security_sb_parse_opts_str); int security_inode_alloc(struct inode *inode) { diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 75c2e99bfb8..4bf4807f2d4 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -443,8 +443,7 @@ out: * mount options, or whatever. */ static int selinux_get_mnt_opts(const struct super_block *sb, - char ***mount_options, int **mnt_opts_flags, - int *num_opts) + struct security_mnt_opts *opts) { int rc = 0, i; struct superblock_security_struct *sbsec = sb->s_security; @@ -452,9 +451,7 @@ static int selinux_get_mnt_opts(const struct super_block *sb, u32 len; char tmp; - *num_opts = 0; - *mount_options = NULL; - *mnt_opts_flags = NULL; + security_init_mnt_opts(opts); if (!sbsec->initialized) return -EINVAL; @@ -470,18 +467,18 @@ static int selinux_get_mnt_opts(const struct super_block *sb, /* count the number of mount options for this sb */ for (i = 0; i < 8; i++) { if (tmp & 0x01) - (*num_opts)++; + opts->num_mnt_opts++; tmp >>= 1; } - *mount_options = kcalloc(*num_opts, sizeof(char *), GFP_ATOMIC); - if (!*mount_options) { + opts->mnt_opts = kcalloc(opts->num_mnt_opts, sizeof(char *), GFP_ATOMIC); + if (!opts->mnt_opts) { rc = -ENOMEM; goto out_free; } - *mnt_opts_flags = kcalloc(*num_opts, sizeof(int), GFP_ATOMIC); - if (!*mnt_opts_flags) { + opts->mnt_opts_flags = kcalloc(opts->num_mnt_opts, sizeof(int), GFP_ATOMIC); + if (!opts->mnt_opts_flags) { rc = -ENOMEM; goto out_free; } @@ -491,22 +488,22 @@ static int selinux_get_mnt_opts(const struct super_block *sb, rc = security_sid_to_context(sbsec->sid, &context, &len); if (rc) goto out_free; - (*mount_options)[i] = context; - (*mnt_opts_flags)[i++] = FSCONTEXT_MNT; + opts->mnt_opts[i] = context; + opts->mnt_opts_flags[i++] = FSCONTEXT_MNT; } if (sbsec->flags & CONTEXT_MNT) { rc = security_sid_to_context(sbsec->mntpoint_sid, &context, &len); if (rc) goto out_free; - (*mount_options)[i] = context; - (*mnt_opts_flags)[i++] = CONTEXT_MNT; + opts->mnt_opts[i] = context; + opts->mnt_opts_flags[i++] = CONTEXT_MNT; } if (sbsec->flags & DEFCONTEXT_MNT) { rc = security_sid_to_context(sbsec->def_sid, &context, &len); if (rc) goto out_free; - (*mount_options)[i] = context; - (*mnt_opts_flags)[i++] = DEFCONTEXT_MNT; + opts->mnt_opts[i] = context; + opts->mnt_opts_flags[i++] = DEFCONTEXT_MNT; } if (sbsec->flags & ROOTCONTEXT_MNT) { struct inode *root = sbsec->sb->s_root->d_inode; @@ -515,24 +512,16 @@ static int selinux_get_mnt_opts(const struct super_block *sb, rc = security_sid_to_context(isec->sid, &context, &len); if (rc) goto out_free; - (*mount_options)[i] = context; - (*mnt_opts_flags)[i++] = ROOTCONTEXT_MNT; + opts->mnt_opts[i] = context; + opts->mnt_opts_flags[i++] = ROOTCONTEXT_MNT; } - BUG_ON(i != *num_opts); + BUG_ON(i != opts->num_mnt_opts); return 0; out_free: - /* don't leak context string if security_sid_to_context had an error */ - if (*mount_options && i) - for (; i > 0; i--) - kfree((*mount_options)[i-1]); - kfree(*mount_options); - *mount_options = NULL; - kfree(*mnt_opts_flags); - *mnt_opts_flags = NULL; - *num_opts = 0; + security_free_mnt_opts(opts); return rc; } @@ -553,12 +542,13 @@ static int bad_option(struct superblock_security_struct *sbsec, char flag, return 1; return 0; } + /* * Allow filesystems with binary mount data to explicitly set mount point * labeling information. */ -static int selinux_set_mnt_opts(struct super_block *sb, char **mount_options, - int *flags, int num_opts) +static int selinux_set_mnt_opts(struct super_block *sb, + struct security_mnt_opts *opts) { int rc = 0, i; struct task_security_struct *tsec = current->security; @@ -568,6 +558,9 @@ static int selinux_set_mnt_opts(struct super_block *sb, char **mount_options, struct inode_security_struct *root_isec = inode->i_security; u32 fscontext_sid = 0, context_sid = 0, rootcontext_sid = 0; u32 defcontext_sid = 0; + char **mount_options = opts->mnt_opts; + int *flags = opts->mnt_opts_flags; + int num_opts = opts->num_mnt_opts; mutex_lock(&sbsec->lock); @@ -588,6 +581,21 @@ static int selinux_set_mnt_opts(struct super_block *sb, char **mount_options, goto out; } + /* + * Binary mount data FS will come through this function twice. Once + * from an explicit call and once from the generic calls from the vfs. + * Since the generic VFS calls will not contain any security mount data + * we need to skip the double mount verification. + * + * This does open a hole in which we will not notice if the first + * mount using this sb set explict options and a second mount using + * this sb does not set any security options. (The first options + * will be used for both mounts) + */ + if (sbsec->initialized && (sb->s_type->fs_flags & FS_BINARY_MOUNTDATA) + && (num_opts == 0)) + goto out; + /* * parse the mount options, check if they are valid sids. * also check if someone is trying to mount the same sb more @@ -792,43 +800,14 @@ static void selinux_sb_clone_mnt_opts(const struct super_block *oldsb, mutex_unlock(&newsbsec->lock); } -/* - * string mount options parsing and call set the sbsec - */ -static int superblock_doinit(struct super_block *sb, void *data) +int selinux_parse_opts_str(char *options, struct security_mnt_opts *opts) { + char *p; char *context = NULL, *defcontext = NULL; char *fscontext = NULL, *rootcontext = NULL; - int rc = 0; - char *p, *options = data; - /* selinux only know about a fixed number of mount options */ - char *mnt_opts[NUM_SEL_MNT_OPTS]; - int mnt_opts_flags[NUM_SEL_MNT_OPTS], num_mnt_opts = 0; - - if (!data) - goto out; + int rc, num_mnt_opts = 0; - /* with the nfs patch this will become a goto out; */ - if (sb->s_type->fs_flags & FS_BINARY_MOUNTDATA) { - const char *name = sb->s_type->name; - /* NFS we understand. */ - if (!strcmp(name, "nfs")) { - struct nfs_mount_data *d = data; - - if (d->version != NFS_MOUNT_VERSION) - goto out; - - if (d->context[0]) { - context = kstrdup(d->context, GFP_KERNEL); - if (!context) { - rc = -ENOMEM; - goto out; - } - } - goto build_flags; - } else - goto out; - } + opts->num_mnt_opts = 0; /* Standard string-based options. */ while ((p = strsep(&options, "|")) != NULL) { @@ -901,26 +880,37 @@ static int superblock_doinit(struct super_block *sb, void *data) } } -build_flags: + rc = -ENOMEM; + opts->mnt_opts = kcalloc(NUM_SEL_MNT_OPTS, sizeof(char *), GFP_ATOMIC); + if (!opts->mnt_opts) + goto out_err; + + opts->mnt_opts_flags = kcalloc(NUM_SEL_MNT_OPTS, sizeof(int), GFP_ATOMIC); + if (!opts->mnt_opts_flags) { + kfree(opts->mnt_opts); + goto out_err; + } + if (fscontext) { - mnt_opts[num_mnt_opts] = fscontext; - mnt_opts_flags[num_mnt_opts++] = FSCONTEXT_MNT; + opts->mnt_opts[num_mnt_opts] = fscontext; + opts->mnt_opts_flags[num_mnt_opts++] = FSCONTEXT_MNT; } if (context) { - mnt_opts[num_mnt_opts] = context; - mnt_opts_flags[num_mnt_opts++] = CONTEXT_MNT; + opts->mnt_opts[num_mnt_opts] = context; + opts->mnt_opts_flags[num_mnt_opts++] = CONTEXT_MNT; } if (rootcontext) { - mnt_opts[num_mnt_opts] = rootcontext; - mnt_opts_flags[num_mnt_opts++] = ROOTCONTEXT_MNT; + opts->mnt_opts[num_mnt_opts] = rootcontext; + opts->mnt_opts_flags[num_mnt_opts++] = ROOTCONTEXT_MNT; } if (defcontext) { - mnt_opts[num_mnt_opts] = defcontext; - mnt_opts_flags[num_mnt_opts++] = DEFCONTEXT_MNT; + opts->mnt_opts[num_mnt_opts] = defcontext; + opts->mnt_opts_flags[num_mnt_opts++] = DEFCONTEXT_MNT; } -out: - rc = selinux_set_mnt_opts(sb, mnt_opts, mnt_opts_flags, num_mnt_opts); + opts->num_mnt_opts = num_mnt_opts; + return 0; + out_err: kfree(context); kfree(defcontext); @@ -928,6 +918,33 @@ out_err: kfree(rootcontext); return rc; } +/* + * string mount options parsing and call set the sbsec + */ +static int superblock_doinit(struct super_block *sb, void *data) +{ + int rc = 0; + char *options = data; + struct security_mnt_opts opts; + + security_init_mnt_opts(&opts); + + if (!data) + goto out; + + BUG_ON(sb->s_type->fs_flags & FS_BINARY_MOUNTDATA); + + rc = selinux_parse_opts_str(options, &opts); + if (rc) + goto out_err; + +out: + rc = selinux_set_mnt_opts(sb, &opts); + +out_err: + security_free_mnt_opts(&opts); + return rc; +} static inline u16 inode_mode_to_security_class(umode_t mode) { @@ -2253,7 +2270,7 @@ static inline void take_selinux_option(char **to, char *from, int *first, } } -static int selinux_sb_copy_data(struct file_system_type *type, void *orig, void *copy) +static int selinux_sb_copy_data(char *orig, char *copy) { int fnosec, fsec, rc = 0; char *in_save, *in_curr, *in_end; @@ -2263,12 +2280,6 @@ static int selinux_sb_copy_data(struct file_system_type *type, void *orig, void in_curr = orig; sec_curr = copy; - /* Binary mount data: just copy */ - if (type->fs_flags & FS_BINARY_MOUNTDATA) { - copy_page(sec_curr, in_curr); - goto out; - } - nosec = (char *)get_zeroed_page(GFP_KERNEL); if (!nosec) { rc = -ENOMEM; @@ -5251,6 +5262,8 @@ static struct security_operations selinux_ops = { .sb_get_mnt_opts = selinux_get_mnt_opts, .sb_set_mnt_opts = selinux_set_mnt_opts, .sb_clone_mnt_opts = selinux_sb_clone_mnt_opts, + .sb_parse_opts_str = selinux_parse_opts_str, + .inode_alloc_security = selinux_inode_alloc_security, .inode_free_security = selinux_inode_free_security, diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h index 837ce420d2f..f7d2f03781f 100644 --- a/security/selinux/include/security.h +++ b/security/selinux/include/security.h @@ -35,6 +35,11 @@ #define POLICYDB_VERSION_MAX POLICYDB_VERSION_POLCAP #endif +#define CONTEXT_MNT 0x01 +#define FSCONTEXT_MNT 0x02 +#define ROOTCONTEXT_MNT 0x04 +#define DEFCONTEXT_MNT 0x08 + struct netlbl_lsm_secattr; extern int selinux_enabled; diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 770eb067e16..0241fd35967 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -189,17 +189,10 @@ static void smack_sb_free_security(struct super_block *sb) * Copy the Smack specific mount options out of the mount * options list. */ -static int smack_sb_copy_data(struct file_system_type *type, void *orig, - void *smackopts) +static int smack_sb_copy_data(char *orig, char *smackopts) { char *cp, *commap, *otheropts, *dp; - /* Binary mount data: just copy */ - if (type->fs_flags & FS_BINARY_MOUNTDATA) { - copy_page(smackopts, orig); - return 0; - } - otheropts = (char *)get_zeroed_page(GFP_KERNEL); if (otheropts == NULL) return -ENOMEM; -- GitLab From f9c3a3802119a2d30f3e4a69aef30a81e09d0209 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Wed, 5 Mar 2008 14:20:18 -0500 Subject: [PATCH 524/923] NFS: use new LSM interfaces to explicitly set mount options NFS and SELinux worked together previously because SELinux had NFS specific knowledge built in. This design was approved by both groups back in 2004 but the recent NFS changes to use nfs_parsed_mount_data and the usage of nfs_clone_mount_data showed this to be a poor fragile solution. This patch fixes the NFS functionality regression by making use of the new LSM interfaces to allow an FS to explicitly set its own mount options. The explicit setting of mount options is done in the nfs get_sb functions which are called before the generic vfs hooks try to set mount options for filesystems which use text mount data. This does not currently support NFSv4 as that functionality did not exist in previous kernels and thus there is no regression. I will be adding the needed code, which I believe to be the exact same as the v3 code, in nfs4_get_sb for 2.6.26. Signed-off-by: Eric Paris Acked-by: Trond Myklebust Signed-off-by: James Morris --- fs/nfs/internal.h | 3 +++ fs/nfs/super.c | 64 +++++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 65 insertions(+), 2 deletions(-) diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 0f5619611b8..931992763e6 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -3,6 +3,7 @@ */ #include +#include struct nfs_string; @@ -57,6 +58,8 @@ struct nfs_parsed_mount_data { char *export_path; int protocol; } nfs_server; + + struct security_mnt_opts lsm_opts; }; /* client.c */ diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 1fb38184365..fcf4b982c88 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -684,8 +684,9 @@ static void nfs_parse_server_address(char *value, static int nfs_parse_mount_options(char *raw, struct nfs_parsed_mount_data *mnt) { - char *p, *string; + char *p, *string, *secdata; unsigned short port = 0; + int rc; if (!raw) { dfprintk(MOUNT, "NFS: mount options string was NULL.\n"); @@ -693,6 +694,20 @@ static int nfs_parse_mount_options(char *raw, } dfprintk(MOUNT, "NFS: nfs mount opts='%s'\n", raw); + secdata = alloc_secdata(); + if (!secdata) + goto out_nomem; + + rc = security_sb_copy_data(raw, secdata); + if (rc) + goto out_security_failure; + + rc = security_sb_parse_opts_str(secdata, &mnt->lsm_opts); + if (rc) + goto out_security_failure; + + free_secdata(secdata); + while ((p = strsep(&raw, ",")) != NULL) { substring_t args[MAX_OPT_ARGS]; int option, token; @@ -1042,7 +1057,10 @@ static int nfs_parse_mount_options(char *raw, out_nomem: printk(KERN_INFO "NFS: not enough memory to parse option\n"); return 0; - +out_security_failure: + free_secdata(secdata); + printk(KERN_INFO "NFS: security options invalid: %d\n", rc); + return 0; out_unrec_vers: printk(KERN_INFO "NFS: unrecognized NFS version number\n"); return 0; @@ -1214,6 +1232,33 @@ static int nfs_validate_mount_data(void *options, args->namlen = data->namlen; args->bsize = data->bsize; args->auth_flavors[0] = data->pseudoflavor; + + /* + * The legacy version 6 binary mount data from userspace has a + * field used only to transport selinux information into the + * the kernel. To continue to support that functionality we + * have a touch of selinux knowledge here in the NFS code. The + * userspace code converted context=blah to just blah so we are + * converting back to the full string selinux understands. + */ + if (data->context[0]){ +#ifdef CONFIG_SECURITY_SELINUX + int rc; + char *opts_str = kmalloc(sizeof(data->context) + 8, GFP_KERNEL); + if (!opts_str) + return -ENOMEM; + strcpy(opts_str, "context="); + data->context[NFS_MAX_CONTEXT_LEN] = '\0'; + strcat(opts_str, &data->context[0]); + rc = security_sb_parse_opts_str(opts_str, &args->lsm_opts); + kfree(opts_str); + if (rc) + return rc; +#else + return -EINVAL; +#endif + } + break; default: { unsigned int len; @@ -1476,6 +1521,8 @@ static int nfs_get_sb(struct file_system_type *fs_type, }; int error; + security_init_mnt_opts(&data.lsm_opts); + /* Validate the mount data */ error = nfs_validate_mount_data(raw_data, &data, &mntfh, dev_name); if (error < 0) @@ -1515,6 +1562,10 @@ static int nfs_get_sb(struct file_system_type *fs_type, goto error_splat_super; } + error = security_sb_set_mnt_opts(s, &data.lsm_opts); + if (error) + goto error_splat_root; + s->s_flags |= MS_ACTIVE; mnt->mnt_sb = s; mnt->mnt_root = mntroot; @@ -1523,12 +1574,15 @@ static int nfs_get_sb(struct file_system_type *fs_type, out: kfree(data.nfs_server.hostname); kfree(data.mount_server.hostname); + security_free_mnt_opts(&data.lsm_opts); return error; out_err_nosb: nfs_free_server(server); goto out; +error_splat_root: + dput(mntroot); error_splat_super: up_write(&s->s_umount); deactivate_super(s); @@ -1608,6 +1662,9 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags, mnt->mnt_sb = s; mnt->mnt_root = mntroot; + /* clone any lsm security options from the parent to the new sb */ + security_sb_clone_mnt_opts(data->sb, s); + dprintk("<-- nfs_xdev_get_sb() = 0\n"); return 0; @@ -1850,6 +1907,8 @@ static int nfs4_get_sb(struct file_system_type *fs_type, }; int error; + security_init_mnt_opts(&data.lsm_opts); + /* Validate the mount data */ error = nfs4_validate_mount_data(raw_data, &data, dev_name); if (error < 0) @@ -1898,6 +1957,7 @@ out: kfree(data.client_address); kfree(data.nfs_server.export_path); kfree(data.nfs_server.hostname); + security_free_mnt_opts(&data.lsm_opts); return error; out_free: -- GitLab From 140ee9603c753ce11fc3088c1988a77e92183f9b Mon Sep 17 00:00:00 2001 From: Gui Jianfeng Date: Wed, 5 Mar 2008 13:43:32 -0800 Subject: [PATCH 525/923] SCTP: Fix chunk parameter processing bug If an address family is not listed in "Supported Address Types" parameter(INIT Chunk), but the packet is sent by that family, this address family should be considered as supported by peer. Otherwise, an error condition will occur. For instance, if kernel receives an IPV6 SCTP INIT chunk with "Support Address Types" parameter which indicates just supporting IPV4 Address family. Kernel will reply an IPV6 SCTP INIT ACK packet, but the source ipv6 address in ipv6 header will be vacant. This is not correct. refer to RFC4460 as following: IMPLEMENTATION NOTE: If an SCTP endpoint lists in the 'Supported Address Types' parameter either IPv4 or IPv6, but uses the other family for sending the packet containing the INIT chunk, or if it also lists addresses of the other family in the INIT chunk, then the address family that is not listed in the 'Supported Address Types' parameter SHOULD also be considered as supported by the receiver of the INIT chunk. The receiver of the INIT chunk SHOULD NOT respond with any kind of error indication. Here is a fix to comply to RFC. Signed-off-by: Gui Jianfeng Acked-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/sctp/sm_make_chunk.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index e45be4e3f80..578630e8e00 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -2375,6 +2375,14 @@ static int sctp_process_param(struct sctp_association *asoc, asoc->peer.ipv4_address = 0; asoc->peer.ipv6_address = 0; + /* Assume that peer supports the address family + * by which it sends a packet. + */ + if (peer_addr->sa.sa_family == AF_INET6) + asoc->peer.ipv6_address = 1; + else if (peer_addr->sa.sa_family == AF_INET) + asoc->peer.ipv4_address = 1; + /* Cycle through address types; avoid divide by 0. */ sat = ntohs(param.p->length) - sizeof(sctp_paramhdr_t); if (sat) -- GitLab From 219b99a9edab4fdc478c819acb38f4a592dffd7d Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Wed, 5 Mar 2008 13:44:46 -0800 Subject: [PATCH 526/923] [SCTP]: Bring MAX_BURST socket option into ietf API extension compliance Brings max_burst socket option set/get into line with the latest ietf socket extensions api draft, while maintaining backwards compatibility. Signed-off-by: Neil Horman Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/sctp/socket.c | 73 ++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 60 insertions(+), 13 deletions(-) diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 939892691a2..d994d822900 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -2933,17 +2933,39 @@ static int sctp_setsockopt_maxburst(struct sock *sk, char __user *optval, int optlen) { + struct sctp_assoc_value params; + struct sctp_sock *sp; + struct sctp_association *asoc; int val; + int assoc_id = 0; - if (optlen != sizeof(int)) + if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) - return -EFAULT; - if (val < 0) + if (optlen == sizeof(int)) { + printk(KERN_WARNING + "SCTP: Use of int in max_burst socket option deprecated\n"); + printk(KERN_WARNING + "SCTP: Use struct sctp_assoc_value instead\n"); + if (copy_from_user(&val, optval, optlen)) + return -EFAULT; + } else if (optlen == sizeof(struct sctp_assoc_value)) { + if (copy_from_user(¶ms, optval, optlen)) + return -EFAULT; + val = params.assoc_value; + assoc_id = params.assoc_id; + } else return -EINVAL; - sctp_sk(sk)->max_burst = val; + sp = sctp_sk(sk); + + if (assoc_id != 0) { + asoc = sctp_id2assoc(sk, assoc_id); + if (!asoc) + return -EINVAL; + asoc->max_burst = val; + } else + sp->max_burst = val; return 0; } @@ -5005,20 +5027,45 @@ static int sctp_getsockopt_maxburst(struct sock *sk, int len, char __user *optval, int __user *optlen) { - int val; + struct sctp_assoc_value params; + struct sctp_sock *sp; + struct sctp_association *asoc; if (len < sizeof(int)) return -EINVAL; - len = sizeof(int); + if (len == sizeof(int)) { + printk(KERN_WARNING + "SCTP: Use of int in max_burst socket option deprecated\n"); + printk(KERN_WARNING + "SCTP: Use struct sctp_assoc_value instead\n"); + params.assoc_id = 0; + } else if (len == sizeof (struct sctp_assoc_value)) { + if (copy_from_user(¶ms, optval, len)) + return -EFAULT; + } else + return -EINVAL; - val = sctp_sk(sk)->max_burst; - if (put_user(len, optlen)) - return -EFAULT; - if (copy_to_user(optval, &val, len)) - return -EFAULT; + sp = sctp_sk(sk); + + if (params.assoc_id != 0) { + asoc = sctp_id2assoc(sk, params.assoc_id); + if (!asoc) + return -EINVAL; + params.assoc_value = asoc->max_burst; + } else + params.assoc_value = sp->max_burst; + + if (len == sizeof(int)) { + if (copy_to_user(optval, ¶ms.assoc_value, len)) + return -EFAULT; + } else { + if (copy_to_user(optval, ¶ms, len)) + return -EFAULT; + } + + return 0; - return -ENOTSUPP; } static int sctp_getsockopt_hmac_ident(struct sock *sk, int len, -- GitLab From 972559a05222c1d7ebd5dcde637542713bb8778d Mon Sep 17 00:00:00 2001 From: Petr Tesarik Date: Mon, 11 Feb 2008 22:41:18 +0100 Subject: [PATCH 527/923] [IA64] access user RBS directly Because the user RBS of a process is now completely stored in user-mode when the process is ptrace-stopped, accesses to the RBS should no longer augment any part of the kernel RBS. This means we can get rid of most ia64_peek() and ia64_poke() calls. Signed-off-by: Petr Tesarik Signed-off-by: Tony Luck --- arch/ia64/kernel/ptrace.c | 44 +++++++++++++-------------------------- 1 file changed, 14 insertions(+), 30 deletions(-) diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 331d6768b5d..9d2591423eb 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -908,7 +908,7 @@ static int access_uarea (struct task_struct *child, unsigned long addr, unsigned long *data, int write_access) { - unsigned long *ptr, regnum, urbs_end, rnat_addr, cfm; + unsigned long *ptr, regnum, urbs_end, cfm; struct switch_stack *sw; struct pt_regs *pt; # define pt_reg_addr(pt, reg) ((void *) \ @@ -1093,16 +1093,8 @@ access_uarea (struct task_struct *child, unsigned long addr, return 0; case PT_AR_RNAT: - urbs_end = ia64_get_user_rbs_end(child, pt, NULL); - rnat_addr = (long) ia64_rse_rnat_addr((long *) - urbs_end); - if (write_access) - return ia64_poke(child, sw, urbs_end, - rnat_addr, *data); - else - return ia64_peek(child, sw, urbs_end, - rnat_addr, data); - + ptr = pt_reg_addr(pt, ar_rnat); + break; case PT_R1: ptr = pt_reg_addr(pt, r1); break; @@ -1541,11 +1533,10 @@ asmlinkage long sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) { struct pt_regs *pt; - unsigned long urbs_end, peek_or_poke; + unsigned long peek_or_poke; struct task_struct *child; struct switch_stack *sw; long ret; - struct unw_frame_info info; lock_kernel(); ret = -EPERM; @@ -1593,26 +1584,19 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) case PTRACE_PEEKTEXT: case PTRACE_PEEKDATA: /* read word at location addr */ - urbs_end = ia64_get_user_rbs_end(child, pt, NULL); - ret = ia64_peek(child, sw, urbs_end, addr, &data); - if (ret == 0) { - ret = data; - /* ensure "ret" is not mistaken as an error code: */ - force_successful_syscall_return(); + if (access_process_vm(child, addr, &data, sizeof(data), 0) + != sizeof(data)) { + ret = -EIO; + goto out_tsk; } + ret = data; + /* ensure "ret" is not mistaken as an error code */ + force_successful_syscall_return(); goto out_tsk; - case PTRACE_POKETEXT: - case PTRACE_POKEDATA: - /* write the word at location addr */ - urbs_end = ia64_get_user_rbs_end(child, pt, NULL); - ret = ia64_poke(child, sw, urbs_end, addr, data); - - /* Make sure user RBS has the latest data */ - unw_init_from_blocked_task(&info, child); - do_sync_rbs(&info, ia64_sync_user_rbs); - - goto out_tsk; + /* PTRACE_POKETEXT and PTRACE_POKEDATA is handled + * by the generic ptrace_request(). + */ case PTRACE_PEEKUSR: /* read the word at addr in the USER area */ -- GitLab From 08b23d74e07ac053fe4a5d6f4a48e8048fcfe52b Mon Sep 17 00:00:00 2001 From: Petr Tesarik Date: Mon, 11 Feb 2008 22:42:00 +0100 Subject: [PATCH 528/923] [IA64] do not sync RBS when changing PT_AR_BSP or PT_CFM Syncing is no longer needed, because user RBS is already up-to-date. Actually, if a debugger modified the contents of the original RBS prior to changing PT_AR_BSP, the modifications would get overwritten. Signed-off-by: Petr Tesarik Signed-off-by: Tony Luck --- arch/ia64/kernel/ptrace.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 9d2591423eb..54b7ea55155 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -1011,14 +1011,9 @@ access_uarea (struct task_struct *child, unsigned long addr, * the kernel was entered. * * Furthermore, when changing the contents of - * PT_AR_BSP (or PT_CFM) we MUST copy any - * users-level stacked registers that are - * stored on the kernel stack back to - * user-space because otherwise, we might end - * up clobbering kernel stacked registers. - * Also, if this happens while the task is - * blocked in a system call, which convert the - * state such that the non-system-call exit + * PT_AR_BSP (or PT_CFM) while the task is + * blocked in a system call, convert the state + * so that the non-system-call exit * path is used. This ensures that the proper * state will be picked up when resuming * execution. However, it *also* means that @@ -1035,10 +1030,6 @@ access_uarea (struct task_struct *child, unsigned long addr, urbs_end = ia64_get_user_rbs_end(child, pt, &cfm); if (write_access) { if (*data != urbs_end) { - if (ia64_sync_user_rbs(child, sw, - pt->ar_bspstore, - urbs_end) < 0) - return -1; if (in_syscall(pt)) convert_to_non_syscall(child, pt, @@ -1058,10 +1049,6 @@ access_uarea (struct task_struct *child, unsigned long addr, urbs_end = ia64_get_user_rbs_end(child, pt, &cfm); if (write_access) { if (((cfm ^ *data) & PFM_MASK) != 0) { - if (ia64_sync_user_rbs(child, sw, - pt->ar_bspstore, - urbs_end) < 0) - return -1; if (in_syscall(pt)) convert_to_non_syscall(child, pt, -- GitLab From e868a55c2a8cb72b66d7137fbcc54b82016e98eb Mon Sep 17 00:00:00 2001 From: Petr Tesarik Date: Mon, 11 Feb 2008 22:42:34 +0100 Subject: [PATCH 529/923] [IA64] remove find_thread_for_addr() find_thread_for_addr() is no longer needed. It was only used to find the correct kernel RBS for a given memory address, but since the kernel RBS is not needed any longer, this function can go away. Signed-off-by: Petr Tesarik Signed-off-by: Tony Luck --- arch/ia64/kernel/ptrace.c | 56 +-------------------------------------- 1 file changed, 1 insertion(+), 55 deletions(-) diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 54b7ea55155..e82fe296c2c 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -697,52 +697,6 @@ thread_matches (struct task_struct *thread, unsigned long addr) return 1; /* looks like we've got a winner */ } -/* - * GDB apparently wants to be able to read the register-backing store - * of any thread when attached to a given process. If we are peeking - * or poking an address that happens to reside in the kernel-backing - * store of another thread, we need to attach to that thread, because - * otherwise we end up accessing stale data. - * - * task_list_lock must be read-locked before calling this routine! - */ -static struct task_struct * -find_thread_for_addr (struct task_struct *child, unsigned long addr) -{ - struct task_struct *p; - struct mm_struct *mm; - struct list_head *this, *next; - int mm_users; - - if (!(mm = get_task_mm(child))) - return child; - - /* -1 because of our get_task_mm(): */ - mm_users = atomic_read(&mm->mm_users) - 1; - if (mm_users <= 1) - goto out; /* not multi-threaded */ - - /* - * Traverse the current process' children list. Every task that - * one attaches to becomes a child. And it is only attached children - * of the debugger that are of interest (ptrace_check_attach checks - * for this). - */ - list_for_each_safe(this, next, ¤t->children) { - p = list_entry(this, struct task_struct, sibling); - if (p->tgid != child->tgid) - continue; - if (thread_matches(p, addr)) { - child = p; - goto out; - } - } - - out: - mmput(mm); - return child; -} - /* * Write f32-f127 back to task->thread.fph if it has been modified. */ @@ -1520,7 +1474,6 @@ asmlinkage long sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) { struct pt_regs *pt; - unsigned long peek_or_poke; struct task_struct *child; struct switch_stack *sw; long ret; @@ -1532,19 +1485,12 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) goto out; } - peek_or_poke = (request == PTRACE_PEEKTEXT - || request == PTRACE_PEEKDATA - || request == PTRACE_POKETEXT - || request == PTRACE_POKEDATA); ret = -ESRCH; read_lock(&tasklist_lock); { child = find_task_by_pid(pid); - if (child) { - if (peek_or_poke) - child = find_thread_for_addr(child, addr); + if (child) get_task_struct(child); - } } read_unlock(&tasklist_lock); if (!child) -- GitLab From eac738e6cea16bfbd7b9018d60d009aedd2d14b6 Mon Sep 17 00:00:00 2001 From: Petr Tesarik Date: Mon, 11 Feb 2008 22:43:05 +0100 Subject: [PATCH 530/923] [IA64] convert sys_ptrace to arch_ptrace Convert sys_ptrace() to arch_ptrace(). Signed-off-by: Petr Tesarik Signed-off-by: Tony Luck --- arch/ia64/kernel/ptrace.c | 42 +++------------------------------------ include/asm-ia64/ptrace.h | 2 -- 2 files changed, 3 insertions(+), 41 deletions(-) diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index e82fe296c2c..1dfff5a8f36 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -1470,46 +1470,13 @@ ptrace_disable (struct task_struct *child) child_psr->tb = 0; } -asmlinkage long -sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) +long +arch_ptrace (struct task_struct *child, long request, long addr, long data) { struct pt_regs *pt; - struct task_struct *child; struct switch_stack *sw; long ret; - lock_kernel(); - ret = -EPERM; - if (request == PTRACE_TRACEME) { - ret = ptrace_traceme(); - goto out; - } - - ret = -ESRCH; - read_lock(&tasklist_lock); - { - child = find_task_by_pid(pid); - if (child) - get_task_struct(child); - } - read_unlock(&tasklist_lock); - if (!child) - goto out; - ret = -EPERM; - if (pid == 1) /* no messing around with init! */ - goto out_tsk; - - if (request == PTRACE_ATTACH) { - ret = ptrace_attach(child); - if (!ret) - arch_ptrace_attach(child); - goto out_tsk; - } - - ret = ptrace_check_attach(child, request == PTRACE_KILL); - if (ret < 0) - goto out_tsk; - pt = task_pt_regs(child); sw = (struct switch_stack *) (child->thread.ksp + 16); @@ -1594,7 +1561,7 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) */ if (child->exit_state == EXIT_ZOMBIE) /* already dead */ - goto out_tsk; + return 0; child->exit_code = SIGKILL; ptrace_disable(child); @@ -1643,9 +1610,6 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) goto out_tsk; } out_tsk: - put_task_struct(child); - out: - unlock_kernel(); return ret; } diff --git a/include/asm-ia64/ptrace.h b/include/asm-ia64/ptrace.h index 0bdce7dde1b..5b523409878 100644 --- a/include/asm-ia64/ptrace.h +++ b/include/asm-ia64/ptrace.h @@ -233,8 +233,6 @@ struct switch_stack { #include #include -#define __ARCH_SYS_PTRACE 1 - /* * We use the ia64_psr(regs)->ri to determine which of the three * instructions in bundle (16 bytes) took the sample. Generate -- GitLab From 8db3f5254151c3a06a764bbb18283570ba1897bf Mon Sep 17 00:00:00 2001 From: Petr Tesarik Date: Mon, 11 Feb 2008 22:43:38 +0100 Subject: [PATCH 531/923] [IA64] remove duplicate code from arch_ptrace() Remove all code which does exactly the same thing as ptrace_request(). Signed-off-by: Petr Tesarik Signed-off-by: Tony Luck --- arch/ia64/kernel/ptrace.c | 96 ++++++++++++--------------------------- include/asm-ia64/ptrace.h | 7 +++ 2 files changed, 36 insertions(+), 67 deletions(-) diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 1dfff5a8f36..f10c8b40dd3 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -1454,6 +1454,35 @@ ptrace_setregs (struct task_struct *child, struct pt_all_user_regs __user *ppr) return ret; } +void +user_enable_single_step (struct task_struct *child) +{ + struct ia64_psr *child_psr = ia64_psr(task_pt_regs(child)); + + set_tsk_thread_flag(child, TIF_SINGLESTEP); + child_psr->ss = 1; +} + +void +user_enable_block_step (struct task_struct *child) +{ + struct ia64_psr *child_psr = ia64_psr(task_pt_regs(child)); + + set_tsk_thread_flag(child, TIF_SINGLESTEP); + child_psr->tb = 1; +} + +void +user_disable_single_step (struct task_struct *child) +{ + struct ia64_psr *child_psr = ia64_psr(task_pt_regs(child)); + + /* make sure the single step/taken-branch trap bits are not set: */ + clear_tsk_thread_flag(child, TIF_SINGLESTEP); + child_psr->ss = 0; + child_psr->tb = 0; +} + /* * Called by kernel/ptrace.c when detaching.. * @@ -1528,73 +1557,6 @@ arch_ptrace (struct task_struct *child, long request, long addr, long data) ret = ptrace_request(child, PTRACE_SETSIGINFO, addr, data); goto out_tsk; - case PTRACE_SYSCALL: - /* continue and stop at next (return from) syscall */ - case PTRACE_CONT: - /* restart after signal. */ - ret = -EIO; - if (!valid_signal(data)) - goto out_tsk; - if (request == PTRACE_SYSCALL) - set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - else - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - child->exit_code = data; - - /* - * Make sure the single step/taken-branch trap bits - * are not set: - */ - clear_tsk_thread_flag(child, TIF_SINGLESTEP); - ia64_psr(pt)->ss = 0; - ia64_psr(pt)->tb = 0; - - wake_up_process(child); - ret = 0; - goto out_tsk; - - case PTRACE_KILL: - /* - * Make the child exit. Best I can do is send it a - * sigkill. Perhaps it should be put in the status - * that it wants to exit. - */ - if (child->exit_state == EXIT_ZOMBIE) - /* already dead */ - return 0; - child->exit_code = SIGKILL; - - ptrace_disable(child); - wake_up_process(child); - ret = 0; - goto out_tsk; - - case PTRACE_SINGLESTEP: - /* let child execute for one instruction */ - case PTRACE_SINGLEBLOCK: - ret = -EIO; - if (!valid_signal(data)) - goto out_tsk; - - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - set_tsk_thread_flag(child, TIF_SINGLESTEP); - if (request == PTRACE_SINGLESTEP) { - ia64_psr(pt)->ss = 1; - } else { - ia64_psr(pt)->tb = 1; - } - child->exit_code = data; - - /* give it a chance to run. */ - wake_up_process(child); - ret = 0; - goto out_tsk; - - case PTRACE_DETACH: - /* detach a process that was attached. */ - ret = ptrace_detach(child, data); - goto out_tsk; - case PTRACE_GETREGS: ret = ptrace_getregs(child, (struct pt_all_user_regs __user *) data); diff --git a/include/asm-ia64/ptrace.h b/include/asm-ia64/ptrace.h index 5b523409878..4b2a8d40ebc 100644 --- a/include/asm-ia64/ptrace.h +++ b/include/asm-ia64/ptrace.h @@ -312,6 +312,13 @@ struct switch_stack { #define arch_ptrace_attach(child) \ ptrace_attach_sync_user_rbs(child) + #define arch_has_single_step() (1) + extern void user_enable_single_step(struct task_struct *); + extern void user_disable_single_step(struct task_struct *); + + #define arch_has_block_step() (1) + extern void user_enable_block_step(struct task_struct *); + #endif /* !__KERNEL__ */ /* pt_all_user_regs is used for PTRACE_GETREGS PTRACE_SETREGS */ -- GitLab From aa17f6f930b19df2901aa78c88530653cdcfc450 Mon Sep 17 00:00:00 2001 From: Petr Tesarik Date: Tue, 26 Feb 2008 12:03:28 +0100 Subject: [PATCH 532/923] [IA64] arch_ptrace() cleanup Remove duplicate code, clean up goto's and indentation. Signed-off-by: Petr Tesarik Signed-off-by: Tony Luck --- arch/ia64/kernel/ptrace.c | 90 ++++++++++++++------------------------- 1 file changed, 31 insertions(+), 59 deletions(-) diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index f10c8b40dd3..7e0d7dcac1a 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -1491,88 +1491,60 @@ user_disable_single_step (struct task_struct *child) void ptrace_disable (struct task_struct *child) { - struct ia64_psr *child_psr = ia64_psr(task_pt_regs(child)); - - /* make sure the single step/taken-branch trap bits are not set: */ - clear_tsk_thread_flag(child, TIF_SINGLESTEP); - child_psr->ss = 0; - child_psr->tb = 0; + user_disable_single_step(child); } long arch_ptrace (struct task_struct *child, long request, long addr, long data) { - struct pt_regs *pt; - struct switch_stack *sw; - long ret; - - pt = task_pt_regs(child); - sw = (struct switch_stack *) (child->thread.ksp + 16); - switch (request) { - case PTRACE_PEEKTEXT: - case PTRACE_PEEKDATA: + case PTRACE_PEEKTEXT: + case PTRACE_PEEKDATA: /* read word at location addr */ if (access_process_vm(child, addr, &data, sizeof(data), 0) - != sizeof(data)) { - ret = -EIO; - goto out_tsk; - } - ret = data; - /* ensure "ret" is not mistaken as an error code */ + != sizeof(data)) + return -EIO; + /* ensure return value is not mistaken for error code */ force_successful_syscall_return(); - goto out_tsk; + return data; /* PTRACE_POKETEXT and PTRACE_POKEDATA is handled * by the generic ptrace_request(). */ - case PTRACE_PEEKUSR: + case PTRACE_PEEKUSR: /* read the word at addr in the USER area */ - if (access_uarea(child, addr, &data, 0) < 0) { - ret = -EIO; - goto out_tsk; - } - ret = data; - /* ensure "ret" is not mistaken as an error code */ + if (access_uarea(child, addr, &data, 0) < 0) + return -EIO; + /* ensure return value is not mistaken for error code */ force_successful_syscall_return(); - goto out_tsk; + return data; - case PTRACE_POKEUSR: + case PTRACE_POKEUSR: /* write the word at addr in the USER area */ - if (access_uarea(child, addr, &data, 1) < 0) { - ret = -EIO; - goto out_tsk; - } - ret = 0; - goto out_tsk; + if (access_uarea(child, addr, &data, 1) < 0) + return -EIO; + return 0; - case PTRACE_OLD_GETSIGINFO: + case PTRACE_OLD_GETSIGINFO: /* for backwards-compatibility */ - ret = ptrace_request(child, PTRACE_GETSIGINFO, addr, data); - goto out_tsk; + return ptrace_request(child, PTRACE_GETSIGINFO, addr, data); - case PTRACE_OLD_SETSIGINFO: + case PTRACE_OLD_SETSIGINFO: /* for backwards-compatibility */ - ret = ptrace_request(child, PTRACE_SETSIGINFO, addr, data); - goto out_tsk; - - case PTRACE_GETREGS: - ret = ptrace_getregs(child, - (struct pt_all_user_regs __user *) data); - goto out_tsk; - - case PTRACE_SETREGS: - ret = ptrace_setregs(child, - (struct pt_all_user_regs __user *) data); - goto out_tsk; - - default: - ret = ptrace_request(child, request, addr, data); - goto out_tsk; + return ptrace_request(child, PTRACE_SETSIGINFO, addr, data); + + case PTRACE_GETREGS: + return ptrace_getregs(child, + (struct pt_all_user_regs __user *) data); + + case PTRACE_SETREGS: + return ptrace_setregs(child, + (struct pt_all_user_regs __user *) data); + + default: + return ptrace_request(child, request, addr, data); } - out_tsk: - return ret; } -- GitLab From 41f7f60d31e5e1dfc9a92957b3e14e08a2f04964 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Tue, 4 Mar 2008 23:32:38 -0800 Subject: [PATCH 533/923] cpusets: fix obsolete comment mm migration is no longer done in cpuset_update_task_memory_state() so it can no longer take current->mm->mmap_sem, so fix the obsolete comment. [ This changed in commit 04c19fa6f16047abff2288ddbc1f0798ede5a849 ("cpuset: migrate all tasks in cpuset at once") when the mm migration was moved from cpuset_update_task_memory_state() to update_nodemask() ] Signed-off-by: David Rientjes Cc: Paul Jackson Signed-off-by: Linus Torvalds --- kernel/cpuset.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 3e296ed81d4..a1b61f41422 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -322,8 +322,8 @@ static void guarantee_online_mems(const struct cpuset *cs, nodemask_t *pmask) * Call without callback_mutex or task_lock() held. May be * called with or without cgroup_mutex held. Thanks in part to * 'the_top_cpuset_hack', the task's cpuset pointer will never - * be NULL. This routine also might acquire callback_mutex and - * current->mm->mmap_sem during call. + * be NULL. This routine also might acquire callback_mutex during + * call. * * Reading current->cpuset->mems_generation doesn't need task_lock * to guard the current->cpuset derefence, because it is guarded -- GitLab From 4a0d3f3afddf01dfcfdcc826f0b706dbc01f4ef4 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Wed, 5 Mar 2008 17:09:30 +0900 Subject: [PATCH 534/923] parisc: fix IOMMU's device boundary overflow bug on 32bits arch On 32bits boxes, boundary_size becomes zero due to a overflow and we hit BUG_ON in iommu_is_span_boundary. Signed-off-by: FUJITA Tomonori Cc: Kyle McMartin Cc: Matthew Wilcox Acked-by: Grant Grundler Signed-off-by: Linus Torvalds --- drivers/parisc/ccio-dma.c | 4 ++-- drivers/parisc/sba_iommu.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index 60d338cd800..62db3c3fe4d 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -366,8 +366,8 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size) ** ggg sacrifices another 710 to the computer gods. */ - boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT); - boundary_size >>= IOVP_SHIFT; + boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1, + 1ULL << IOVP_SHIFT) >> IOVP_SHIFT; if (pages_needed <= 8) { /* diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index e834127a850..bdbe780e21c 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -341,8 +341,8 @@ sba_search_bitmap(struct ioc *ioc, struct device *dev, unsigned long shift; int ret; - boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT); - boundary_size >>= IOVP_SHIFT; + boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1, + 1ULL << IOVP_SHIFT) >> IOVP_SHIFT; #if defined(ZX1_SUPPORT) BUG_ON(ioc->ibase & ~IOVP_MASK); -- GitLab From 9821b1f4a145b20db08108362f0b4caf4f0832a1 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Wed, 5 Mar 2008 19:02:23 -0700 Subject: [PATCH 535/923] [Blackfin] arch: current_l1_stack_save is a pointer, so use NULL rather than 0 Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- include/asm-blackfin/mmu_context.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-blackfin/mmu_context.h b/include/asm-blackfin/mmu_context.h index b5eb67596ad..f55ec3c23a9 100644 --- a/include/asm-blackfin/mmu_context.h +++ b/include/asm-blackfin/mmu_context.h @@ -73,7 +73,7 @@ static inline void destroy_context(struct mm_struct *mm) struct sram_list_struct *tmp; if (current_l1_stack_save == mm->context.l1_stack_save) - current_l1_stack_save = 0; + current_l1_stack_save = NULL; if (mm->context.l1_stack_save) free_l1stack(); -- GitLab From c31f2f3d066d49147ce297c7207cc2d49dd20382 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 3 Mar 2008 20:07:42 +0200 Subject: [PATCH 536/923] sh/mm/pg-sh7705.c must #include This patch fixes the following compile error: <-- snip --> ... CC arch/sh/mm/pg-sh7705.o /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/mm/pg-sh7705.c: In function 'ptep_get_and_clear': /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/mm/pg-sh7705.c:130: error: implicit declaration of function 'mapping_writably_mapped' make[2]: *** [arch/sh/mm/pg-sh7705.o] Error 1 <-- snip --> Signed-off-by: Adrian Bunk Signed-off-by: Paul Mundt --- arch/sh/mm/pg-sh7705.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/sh/mm/pg-sh7705.c b/arch/sh/mm/pg-sh7705.c index a4b015f95a3..7f885b7f8af 100644 --- a/arch/sh/mm/pg-sh7705.c +++ b/arch/sh/mm/pg-sh7705.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include -- GitLab From 4bee4ca2de533947720db14276828e1a066b940d Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 5 Mar 2008 00:39:58 +0200 Subject: [PATCH 537/923] sh_ksyms_32.c update for gcc 4.3 This patch fixes the following build error with landisk_defconfig when using gcc 4.3: <-- snip --> ... MODPOST 50 modules ERROR: "__udivsi3_i4i" [net/sunrpc/sunrpc.ko] undefined! ERROR: "__udivsi3_i4i" [net/appletalk/appletalk.ko] undefined! ERROR: "__udivsi3_i4i" [fs/ufs/ufs.ko] undefined! ERROR: "__udivsi3_i4i" [fs/ntfs/ntfs.ko] undefined! ERROR: "__sdivsi3_i4i" [fs/ntfs/ntfs.ko] undefined! ERROR: "__udivsi3_i4i" [fs/nfsd/nfsd.ko] undefined! ERROR: "__sdivsi3_i4i" [fs/nfsd/nfsd.ko] undefined! ERROR: "__udivsi3_i4i" [fs/nfs/nfs.ko] undefined! ERROR: "__udivsi3_i4i" [fs/lockd/lockd.ko] undefined! ERROR: "__udivsi3_i4i" [drivers/usb/storage/usb-storage.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/usb/serial/pl2303.ko] undefined! ERROR: "__udivsi3_i4i" [drivers/usb/serial/pl2303.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/usb/serial/ftdi_sio.ko] undefined! ERROR: "__udivsi3_i4i" [drivers/usb/misc/sisusbvga/sisusbvga.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/usb/misc/sisusbvga/sisusbvga.ko] undefined! ERROR: "__udivsi3_i4i" [drivers/media/video/v4l1-compat.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/media/video/v4l1-compat.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/media/video/usbvideo/vicam.ko] undefined! ERROR: "__udivsi3_i4i" [drivers/media/video/usbvideo/usbvideo.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/media/video/usbvideo/usbvideo.ko] undefined! ERROR: "__udivsi3_i4i" [drivers/media/video/sn9c102/sn9c102.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/media/video/sn9c102/sn9c102.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/media/video/se401.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/media/video/pwc/pwc.ko] undefined! ERROR: "__udivsi3_i4i" [drivers/md/raid0.ko] undefined! ERROR: "__udivsi3_i4i" [drivers/md/md-mod.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/md/md-mod.ko] undefined! ERROR: "__udivsi3_i4i" [drivers/md/linear.ko] undefined! ERROR: "__sdivsi3_i4i" [drivers/hid/usbhid/usbhid.ko] undefined! make[2]: *** [__modpost] Error 1 <-- snip --> Signed-off-by: Adrian Bunk Signed-off-by: Paul Mundt --- arch/sh/kernel/sh_ksyms_32.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sh/kernel/sh_ksyms_32.c b/arch/sh/kernel/sh_ksyms_32.c index e1a6de9088b..a12f1151fbd 100644 --- a/arch/sh/kernel/sh_ksyms_32.c +++ b/arch/sh/kernel/sh_ksyms_32.c @@ -111,9 +111,9 @@ DECLARE_EXPORT(__movmem_i4_even); DECLARE_EXPORT(__movmem_i4_odd); DECLARE_EXPORT(__movmemSI12_i4); -#if (__GNUC_MINOR__ == 2 || defined(__GNUC_STM_RELEASE__)) +#if (__GNUC_MINOR__ >= 2 || defined(__GNUC_STM_RELEASE__)) /* - * GCC 4.2 emits these for division, as do GCC 4.1.x versions of the ST + * GCC >= 4.2 emits these for division, as do GCC 4.1.x versions of the ST * compiler which include backported patches. */ DECLARE_EXPORT(__sdivsi3_i4i); -- GitLab From ad0caae0ded1af2a0a41f93356587e1c24d76725 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 4 Mar 2008 15:23:47 -0800 Subject: [PATCH 538/923] sh: export copy-page() to modules ERROR: "copy_page" [fs/unionfs/unionfs.ko] undefined! like all the other architectures. Cc: Erez Zadok Signed-off-by: Andrew Morton Signed-off-by: Paul Mundt --- arch/sh/kernel/sh_ksyms_32.c | 1 + arch/sh/kernel/sh_ksyms_64.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/sh/kernel/sh_ksyms_32.c b/arch/sh/kernel/sh_ksyms_32.c index a12f1151fbd..d80de390327 100644 --- a/arch/sh/kernel/sh_ksyms_32.c +++ b/arch/sh/kernel/sh_ksyms_32.c @@ -146,5 +146,6 @@ EXPORT_SYMBOL(csum_partial_copy_generic); EXPORT_SYMBOL(csum_ipv6_magic); #endif EXPORT_SYMBOL(clear_page); +EXPORT_SYMBOL(copy_page); EXPORT_SYMBOL(__clear_user); EXPORT_SYMBOL(_ebss); diff --git a/arch/sh/kernel/sh_ksyms_64.c b/arch/sh/kernel/sh_ksyms_64.c index 8004c38d3d3..dd38a683de6 100644 --- a/arch/sh/kernel/sh_ksyms_64.c +++ b/arch/sh/kernel/sh_ksyms_64.c @@ -42,6 +42,7 @@ EXPORT_SYMBOL(__down_trylock); EXPORT_SYMBOL(__up); EXPORT_SYMBOL(__put_user_asm_l); EXPORT_SYMBOL(__get_user_asm_l); +EXPORT_SYMBOL(copy_page); EXPORT_SYMBOL(__copy_user); EXPORT_SYMBOL(memcpy); EXPORT_SYMBOL(__udelay); -- GitLab From 866e6b9e5019e210d96ced31fbae531ed756e486 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Tue, 4 Mar 2008 15:23:47 -0800 Subject: [PATCH 539/923] sh: replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: Paul Mundt --- arch/sh/boards/renesas/x3proto/ilsel.c | 2 +- arch/sh/boards/superh/microdev/io.c | 2 +- arch/sh/kernel/cpu/sh4/sq.c | 4 ++-- arch/sh/kernel/cpu/sh5/unwind.c | 2 +- arch/sh/kernel/timers/timer-cmt.c | 2 +- arch/sh/kernel/timers/timer-mtu2.c | 2 +- arch/sh/kernel/topology.c | 2 +- arch/sh/kernel/traps_64.c | 2 +- arch/sh/lib64/c-checksum.c | 2 +- arch/sh/mm/init.c | 2 +- arch/sh/mm/ioremap_32.c | 2 +- arch/sh/mm/ioremap_64.c | 4 ++-- arch/sh/mm/tlbflush_64.c | 6 +++--- 13 files changed, 17 insertions(+), 17 deletions(-) diff --git a/arch/sh/boards/renesas/x3proto/ilsel.c b/arch/sh/boards/renesas/x3proto/ilsel.c index 6d4454fef97..b5c673c3933 100644 --- a/arch/sh/boards/renesas/x3proto/ilsel.c +++ b/arch/sh/boards/renesas/x3proto/ilsel.c @@ -68,7 +68,7 @@ static void __ilsel_enable(ilsel_source_t set, unsigned int bit) shift = mk_ilsel_shift(bit); pr_debug("%s: bit#%d: addr - 0x%08lx (shift %d, set %d)\n", - __FUNCTION__, bit, addr, shift, set); + __func__, bit, addr, shift, set); tmp = ctrl_inw(addr); tmp &= ~(0xf << shift); diff --git a/arch/sh/boards/superh/microdev/io.c b/arch/sh/boards/superh/microdev/io.c index b704e20d7e4..9f8a540f7e1 100644 --- a/arch/sh/boards/superh/microdev/io.c +++ b/arch/sh/boards/superh/microdev/io.c @@ -127,7 +127,7 @@ static unsigned long microdev_isa_port2addr(unsigned long offset) * safe default. */ printk("Warning: unexpected port in %s( offset = 0x%lx )\n", - __FUNCTION__, offset); + __func__, offset); result = PVR; } diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c index 8250e017bd4..9561b02ade0 100644 --- a/arch/sh/kernel/cpu/sh4/sq.c +++ b/arch/sh/kernel/cpu/sh4/sq.c @@ -216,7 +216,7 @@ void sq_unmap(unsigned long vaddr) if (unlikely(!map)) { printk("%s: bad store queue address 0x%08lx\n", - __FUNCTION__, vaddr); + __func__, vaddr); return; } @@ -233,7 +233,7 @@ void sq_unmap(unsigned long vaddr) vma = remove_vm_area((void *)(map->sq_addr & PAGE_MASK)); if (!vma) { printk(KERN_ERR "%s: bad address 0x%08lx\n", - __FUNCTION__, map->sq_addr); + __func__, map->sq_addr); return; } } diff --git a/arch/sh/kernel/cpu/sh5/unwind.c b/arch/sh/kernel/cpu/sh5/unwind.c index 119c20afd4e..b205b25eaf4 100644 --- a/arch/sh/kernel/cpu/sh5/unwind.c +++ b/arch/sh/kernel/cpu/sh5/unwind.c @@ -149,7 +149,7 @@ static int lookup_prev_stack_frame(unsigned long fp, unsigned long pc, if (dest >= 63) { printk(KERN_NOTICE "%s: Invalid dest reg %d " "specified in movi handler. Failed " - "opcode was 0x%lx: ", __FUNCTION__, + "opcode was 0x%lx: ", __func__, dest, op); continue; diff --git a/arch/sh/kernel/timers/timer-cmt.c b/arch/sh/kernel/timers/timer-cmt.c index 71312324b5d..d20c8c37588 100644 --- a/arch/sh/kernel/timers/timer-cmt.c +++ b/arch/sh/kernel/timers/timer-cmt.c @@ -77,7 +77,7 @@ static unsigned long cmt_timer_get_offset(void) count -= LATCH; } else { printk("%s (): hardware timer problem?\n", - __FUNCTION__); + __func__); } } } else diff --git a/arch/sh/kernel/timers/timer-mtu2.c b/arch/sh/kernel/timers/timer-mtu2.c index ade9d6eb29f..fe453c01f9c 100644 --- a/arch/sh/kernel/timers/timer-mtu2.c +++ b/arch/sh/kernel/timers/timer-mtu2.c @@ -76,7 +76,7 @@ static unsigned long mtu2_timer_get_offset(void) count -= LATCH; } else { printk("%s (): hardware timer problem?\n", - __FUNCTION__); + __func__); } } } else diff --git a/arch/sh/kernel/topology.c b/arch/sh/kernel/topology.c index 9b5844a1bda..0838942b708 100644 --- a/arch/sh/kernel/topology.c +++ b/arch/sh/kernel/topology.c @@ -29,7 +29,7 @@ static int __init topology_init(void) ret = register_cpu(&per_cpu(cpu_devices, i), i); if (unlikely(ret)) printk(KERN_WARNING "%s: register_cpu %d failed (%d)\n", - __FUNCTION__, i, ret); + __func__, i, ret); } #if defined(CONFIG_NUMA) && !defined(CONFIG_SMP) diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c index a55ac81d795..1b58a749908 100644 --- a/arch/sh/kernel/traps_64.c +++ b/arch/sh/kernel/traps_64.c @@ -238,7 +238,7 @@ DO_ERROR(12, SIGILL, "reserved instruction", reserved_inst, current) /* Called with interrupts disabled */ asmlinkage void do_exception_error(unsigned long ex, struct pt_regs *regs) { - show_excp_regs(__FUNCTION__, -1, -1, regs); + show_excp_regs(__func__, -1, -1, regs); die_if_kernel("exception", regs, ex); } diff --git a/arch/sh/lib64/c-checksum.c b/arch/sh/lib64/c-checksum.c index 5dfbd8b5e55..5c284e0cff9 100644 --- a/arch/sh/lib64/c-checksum.c +++ b/arch/sh/lib64/c-checksum.c @@ -207,7 +207,7 @@ __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, result = (result & 0xffffffff) + (result >> 32); pr_debug("%s saddr %x daddr %x len %x proto %x sum %x result %08Lx\n", - __FUNCTION__, saddr, daddr, len, proto, sum, result); + __func__, saddr, daddr, len, proto, sum, result); return (__wsum)result; } diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index e2ed6dd252b..53dde060736 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -328,7 +328,7 @@ int arch_add_memory(int nid, u64 start, u64 size) /* We only have ZONE_NORMAL, so this is easy.. */ ret = __add_pages(pgdat->node_zones + ZONE_NORMAL, start_pfn, nr_pages); if (unlikely(ret)) - printk("%s: Failed, __add_pages() == %d\n", __FUNCTION__, ret); + printk("%s: Failed, __add_pages() == %d\n", __func__, ret); return ret; } diff --git a/arch/sh/mm/ioremap_32.c b/arch/sh/mm/ioremap_32.c index 0c7b7e33abd..882a32ebc6b 100644 --- a/arch/sh/mm/ioremap_32.c +++ b/arch/sh/mm/ioremap_32.c @@ -141,7 +141,7 @@ void __iounmap(void __iomem *addr) p = remove_vm_area((void *)(vaddr & PAGE_MASK)); if (!p) { - printk(KERN_ERR "%s: bad address %p\n", __FUNCTION__, addr); + printk(KERN_ERR "%s: bad address %p\n", __func__, addr); return; } diff --git a/arch/sh/mm/ioremap_64.c b/arch/sh/mm/ioremap_64.c index e27d1651923..cea224c3e49 100644 --- a/arch/sh/mm/ioremap_64.c +++ b/arch/sh/mm/ioremap_64.c @@ -178,7 +178,7 @@ static unsigned long shmedia_alloc_io(unsigned long phys, unsigned long size, } else { if (!printed_full) { printk("%s: done with statics, switching to kmalloc\n", - __FUNCTION__); + __func__); printed_full = 1; } tlen = strlen(name); @@ -352,7 +352,7 @@ void onchip_unmap(unsigned long vaddr) res = shmedia_find_resource(&shmedia_iomap, vaddr); if (!res) { printk(KERN_ERR "%s: Failed to free 0x%08lx\n", - __FUNCTION__, vaddr); + __func__, vaddr); return; } diff --git a/arch/sh/mm/tlbflush_64.c b/arch/sh/mm/tlbflush_64.c index 2a98c9ec88f..7876997ba19 100644 --- a/arch/sh/mm/tlbflush_64.c +++ b/arch/sh/mm/tlbflush_64.c @@ -131,7 +131,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess, #ifdef DEBUG_FAULT print_task(tsk); printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n", - __FUNCTION__,__LINE__, + __func__, __LINE__, address,regs->pc,textaccess,writeaccess); show_regs(regs); #endif @@ -145,7 +145,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess, #ifdef DEBUG_FAULT print_task(tsk); printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n", - __FUNCTION__,__LINE__, + __func__, __LINE__, address,regs->pc,textaccess,writeaccess); show_regs(regs); @@ -157,7 +157,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess, #ifdef DEBUG_FAULT print_task(tsk); printk("%s:%d fault, address is 0x%08x PC %016Lx textaccess %d writeaccess %d\n", - __FUNCTION__,__LINE__, + __func__, __LINE__, address,regs->pc,textaccess,writeaccess); show_regs(regs); #endif -- GitLab From 56546b18969eb808af0c1a6ff68988678bd0a8b7 Mon Sep 17 00:00:00 2001 From: "goda.yusuke" Date: Thu, 28 Feb 2008 12:53:23 +0900 Subject: [PATCH 540/923] sh: update se7780 defconfig This patch updates se7780_defconfig Signed-off-by: Yusuke Goda Signed-off-by: Paul Mundt --- arch/sh/configs/se7780_defconfig | 646 ++++++++++++------------------- 1 file changed, 255 insertions(+), 391 deletions(-) diff --git a/arch/sh/configs/se7780_defconfig b/arch/sh/configs/se7780_defconfig index f68743dc393..30f5ee40c31 100644 --- a/arch/sh/configs/se7780_defconfig +++ b/arch/sh/configs/se7780_defconfig @@ -1,9 +1,10 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.21-rc3 -# Thu Mar 15 14:06:20 2007 +# Linux kernel version: 2.6.25-rc3 +# Thu Feb 28 10:18:04 2008 # CONFIG_SUPERH=y +CONFIG_SUPERH32=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_BUG=y CONFIG_GENERIC_FIND_NEXT_BIT=y @@ -11,38 +12,44 @@ CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_CALIBRATE_DELAY=y -# CONFIG_GENERIC_TIME is not set +CONFIG_GENERIC_TIME=y +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_SYS_SUPPORTS_PCI=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y # CONFIG_ARCH_HAS_ILOG2_U32 is not set # CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_ARCH_NO_VIRT_TO_BUS=y +CONFIG_ARCH_SUPPORTS_AOUT=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # -# Code maturity level options +# General setup # # CONFIG_EXPERIMENTAL is not set CONFIG_BROKEN_ON_SMP=y CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y # CONFIG_SWAP is not set CONFIG_SYSVIPC=y -# CONFIG_IPC_NS is not set CONFIG_SYSVIPC_SYSCTL=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_UTS_NS is not set # CONFIG_AUDIT is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CGROUPS is not set +CONFIG_GROUP_SCHED=y +CONFIG_FAIR_GROUP_SCHED=y +CONFIG_USER_SCHED=y +# CONFIG_CGROUP_SCHED is not set CONFIG_SYSFS_DEPRECATED=y # CONFIG_RELAY is not set +# CONFIG_NAMESPACES is not set # CONFIG_BLK_DEV_INITRD is not set +CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y CONFIG_EMBEDDED=y CONFIG_UID16=y @@ -52,31 +59,36 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y +CONFIG_COMPAT_BRK=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y +CONFIG_ANON_INODES=y # CONFIG_EPOLL is not set +CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y +CONFIG_EVENTFD=y CONFIG_SHMEM=y -CONFIG_SLAB=y CONFIG_VM_EVENT_COUNTERS=y +CONFIG_SLAB=y +# CONFIG_SLUB is not set +# CONFIG_SLOB is not set +# CONFIG_PROFILING is not set +# CONFIG_MARKERS is not set +CONFIG_HAVE_OPROFILE=y +# CONFIG_HAVE_KPROBES is not set +CONFIG_PROC_PAGE_MONITOR=y +CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 -# CONFIG_SLOB is not set - -# -# Loadable module support -# CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_KMOD=y - -# -# Block layer -# CONFIG_BLOCK=y # CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set # CONFIG_LSF is not set # @@ -91,68 +103,27 @@ CONFIG_DEFAULT_DEADLINE=y # CONFIG_DEFAULT_CFQ is not set # CONFIG_DEFAULT_NOOP is not set CONFIG_DEFAULT_IOSCHED="deadline" +CONFIG_CLASSIC_RCU=y +# CONFIG_PREEMPT_RCU is not set # # System type # -CONFIG_SOLUTION_ENGINE=y -# CONFIG_SH_SOLUTION_ENGINE is not set -# CONFIG_SH_7751_SOLUTION_ENGINE is not set -CONFIG_SH_7780_SOLUTION_ENGINE=y -# CONFIG_SH_7300_SOLUTION_ENGINE is not set -# CONFIG_SH_7343_SOLUTION_ENGINE is not set -# CONFIG_SH_73180_SOLUTION_ENGINE is not set -# CONFIG_SH_7751_SYSTEMH is not set -# CONFIG_SH_HP6XX is not set -# CONFIG_SH_SATURN is not set -# CONFIG_SH_DREAMCAST is not set -# CONFIG_SH_MPC1211 is not set -# CONFIG_SH_SH03 is not set -# CONFIG_SH_SECUREEDGE5410 is not set -# CONFIG_SH_HS7751RVOIP is not set -# CONFIG_SH_7710VOIPGW is not set -# CONFIG_SH_RTS7751R2D is not set -# CONFIG_SH_HIGHLANDER is not set -# CONFIG_SH_EDOSK7705 is not set -# CONFIG_SH_SH4202_MICRODEV is not set -# CONFIG_SH_LANDISK is not set -# CONFIG_SH_TITAN is not set -# CONFIG_SH_SHMIN is not set -# CONFIG_SH_7206_SOLUTION_ENGINE is not set -# CONFIG_SH_7619_SOLUTION_ENGINE is not set -# CONFIG_SH_UNKNOWN is not set - -# -# Processor selection -# CONFIG_CPU_SH4=y CONFIG_CPU_SH4A=y - -# -# SH-2 Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7604 is not set # CONFIG_CPU_SUBTYPE_SH7619 is not set - -# -# SH-2A Processor Support -# +# CONFIG_CPU_SUBTYPE_SH7203 is not set # CONFIG_CPU_SUBTYPE_SH7206 is not set - -# -# SH-3 Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7263 is not set # CONFIG_CPU_SUBTYPE_SH7705 is not set # CONFIG_CPU_SUBTYPE_SH7706 is not set # CONFIG_CPU_SUBTYPE_SH7707 is not set # CONFIG_CPU_SUBTYPE_SH7708 is not set # CONFIG_CPU_SUBTYPE_SH7709 is not set # CONFIG_CPU_SUBTYPE_SH7710 is not set - -# -# SH-4 Processor Support -# +# CONFIG_CPU_SUBTYPE_SH7712 is not set +# CONFIG_CPU_SUBTYPE_SH7720 is not set +# CONFIG_CPU_SUBTYPE_SH7721 is not set # CONFIG_CPU_SUBTYPE_SH7750 is not set # CONFIG_CPU_SUBTYPE_SH7091 is not set # CONFIG_CPU_SUBTYPE_SH7750R is not set @@ -161,52 +132,58 @@ CONFIG_CPU_SH4A=y # CONFIG_CPU_SUBTYPE_SH7751R is not set # CONFIG_CPU_SUBTYPE_SH7760 is not set # CONFIG_CPU_SUBTYPE_SH4_202 is not set - -# -# ST40 Processor Support -# -# CONFIG_CPU_SUBTYPE_ST40STB1 is not set -# CONFIG_CPU_SUBTYPE_ST40GX1 is not set - -# -# SH-4A Processor Support -# +# CONFIG_CPU_SUBTYPE_SH7763 is not set # CONFIG_CPU_SUBTYPE_SH7770 is not set CONFIG_CPU_SUBTYPE_SH7780=y # CONFIG_CPU_SUBTYPE_SH7785 is not set - -# -# SH4AL-DSP Processor Support -# -# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SHX3 is not set # CONFIG_CPU_SUBTYPE_SH7343 is not set # CONFIG_CPU_SUBTYPE_SH7722 is not set +# CONFIG_CPU_SUBTYPE_SH7366 is not set +# CONFIG_CPU_SUBTYPE_SH5_101 is not set +# CONFIG_CPU_SUBTYPE_SH5_103 is not set # # Memory management options # +CONFIG_QUICKLIST=y CONFIG_MMU=y CONFIG_PAGE_OFFSET=0x80000000 CONFIG_MEMORY_START=0x08000000 CONFIG_MEMORY_SIZE=0x08000000 -CONFIG_32BIT=y +CONFIG_29BIT=y +# CONFIG_PMB is not set CONFIG_VSYSCALL=y +CONFIG_ARCH_FLATMEM_ENABLE=y +CONFIG_ARCH_SPARSEMEM_ENABLE=y +CONFIG_ARCH_SPARSEMEM_DEFAULT=y +CONFIG_MAX_ACTIVE_REGIONS=1 +CONFIG_ARCH_POPULATES_NODE_MAP=y +CONFIG_ARCH_SELECT_MEMORY_MODEL=y +CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_PAGE_SIZE_4KB=y # CONFIG_PAGE_SIZE_8KB is not set # CONFIG_PAGE_SIZE_64KB is not set -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y -# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SELECT_MEMORY_MODEL=y +# CONFIG_FLATMEM_MANUAL is not set +# CONFIG_DISCONTIGMEM_MANUAL is not set +CONFIG_SPARSEMEM_MANUAL=y +CONFIG_SPARSEMEM=y +CONFIG_HAVE_MEMORY_PRESENT=y +CONFIG_SPARSEMEM_STATIC=y +# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_RESOURCES_64BIT is not set CONFIG_ZONE_DMA_FLAG=0 +CONFIG_NR_QUICK=2 # # Cache configuration # # CONFIG_SH_DIRECT_MAPPED is not set -# CONFIG_SH_WRITETHROUGH is not set -# CONFIG_SH_OCRAM is not set +CONFIG_CACHE_WRITEBACK=y +# CONFIG_CACHE_WRITETHROUGH is not set +# CONFIG_CACHE_OFF is not set # # Processor features @@ -214,20 +191,29 @@ CONFIG_ZONE_DMA_FLAG=0 CONFIG_CPU_LITTLE_ENDIAN=y # CONFIG_CPU_BIG_ENDIAN is not set CONFIG_SH_FPU=y -# CONFIG_SH_DSP is not set # CONFIG_SH_STORE_QUEUES is not set CONFIG_CPU_HAS_INTEVT=y -CONFIG_CPU_HAS_INTC2_IRQ=y -CONFIG_CPU_HAS_INTC_IRQ=y CONFIG_CPU_HAS_SR_RB=y +CONFIG_CPU_HAS_FPU=y + +# +# Board support +# +CONFIG_SOLUTION_ENGINE=y +CONFIG_SH_7780_SOLUTION_ENGINE=y +# CONFIG_SH_SDK7780 is not set +# CONFIG_SH_HIGHLANDER is not set # # Timer and clock configuration # CONFIG_SH_TMU=y CONFIG_SH_TIMER_IRQ=28 -# CONFIG_NO_IDLE_HZ is not set CONFIG_SH_PCLK_FREQ=33333333 +# CONFIG_TICK_ONESHOT is not set +# CONFIG_NO_HZ is not set +# CONFIG_HIGH_RES_TIMERS is not set +CONFIG_GENERIC_CLOCKEVENTS_BUILD=y # # CPU Frequency scaling @@ -242,7 +228,6 @@ CONFIG_SH_PCLK_FREQ=33333333 # # Companion Chips # -# CONFIG_HD6446X_SERIES is not set # # Additional SuperH Device Drivers @@ -258,40 +243,36 @@ CONFIG_HZ_250=y # CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 -# CONFIG_SMP is not set +# CONFIG_SCHED_HRTICK is not set CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set +CONFIG_RCU_TRACE=y +CONFIG_GUSA=y # # Boot options # CONFIG_ZERO_PAGE_OFFSET=0x00001000 CONFIG_BOOT_LINK_OFFSET=0x00810000 -# CONFIG_UBC_WAKEUP is not set -# CONFIG_CMDLINE_BOOL is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="console=ttySC0.115200 root=/dev/sda1" # # Bus options # +# CONFIG_CF_ENABLER is not set CONFIG_PCI=y CONFIG_SH_PCIDMA_NONCOHERENT=y CONFIG_PCI_AUTO=y CONFIG_PCI_AUTO_UPDATE_RESOURCES=y - -# -# PCCARD (PCMCIA/CardBus) support -# - -# -# PCI Hotplug Support -# +# CONFIG_ARCH_SUPPORTS_MSI is not set +CONFIG_PCI_LEGACY=y # # Executable file formats # CONFIG_BINFMT_ELF=y -# CONFIG_BINFMT_FLAT is not set # CONFIG_BINFMT_MISC is not set # @@ -302,7 +283,6 @@ CONFIG_NET=y # # Networking options # -# CONFIG_NETDEBUG is not set CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set CONFIG_UNIX=y @@ -329,6 +309,7 @@ CONFIG_IP_PNP=y CONFIG_INET_XFRM_MODE_TRANSPORT=y CONFIG_INET_XFRM_MODE_TUNNEL=y CONFIG_INET_XFRM_MODE_BEET=y +# CONFIG_INET_LRO is not set CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set @@ -349,16 +330,13 @@ CONFIG_IPV6=y # CONFIG_IPV6_TUNNEL is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set +# CONFIG_ATM is not set # CONFIG_BRIDGE is not set # CONFIG_VLAN_8021Q is not set # CONFIG_DECNET is not set # CONFIG_LLC2 is not set # CONFIG_IPX is not set # CONFIG_ATALK is not set - -# -# QoS and/or fair queueing -# # CONFIG_NET_SCHED is not set # @@ -366,9 +344,18 @@ CONFIG_IPV6=y # # CONFIG_NET_PKTGEN is not set # CONFIG_HAMRADIO is not set +# CONFIG_CAN is not set # CONFIG_IRDA is not set # CONFIG_BT is not set + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set +# CONFIG_MAC80211 is not set # CONFIG_IEEE80211 is not set +# CONFIG_RFKILL is not set # # Device Drivers @@ -380,15 +367,7 @@ CONFIG_IPV6=y CONFIG_STANDALONE=y # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_SYS_HYPERVISOR is not set - -# -# Connector - unified userspace <-> kernelspace linker -# # CONFIG_CONNECTOR is not set - -# -# Memory Technology Devices (MTD) -# CONFIG_MTD=y # CONFIG_MTD_DEBUG is not set # CONFIG_MTD_CONCAT is not set @@ -407,6 +386,7 @@ CONFIG_MTD_BLOCK=y # CONFIG_INFTL is not set # CONFIG_RFD_FTL is not set # CONFIG_SSFDC is not set +# CONFIG_MTD_OOPS is not set # # RAM/ROM/Flash chip drivers @@ -437,13 +417,13 @@ CONFIG_MTD_CFI_UTIL=y # CONFIG_MTD_RAM is not set CONFIG_MTD_ROM=y # CONFIG_MTD_ABSENT is not set -# CONFIG_MTD_OBSOLETE_CHIPS is not set # # Mapping drivers for chip access # # CONFIG_MTD_COMPLEX_MAPPINGS is not set # CONFIG_MTD_PHYSMAP is not set +# CONFIG_MTD_INTEL_VR_NOR is not set # CONFIG_MTD_PLATRAM is not set # @@ -461,31 +441,15 @@ CONFIG_MTD_ROM=y # CONFIG_MTD_DOC2000 is not set # CONFIG_MTD_DOC2001 is not set # CONFIG_MTD_DOC2001PLUS is not set - -# -# NAND Flash Device Drivers -# # CONFIG_MTD_NAND is not set - -# -# OneNAND Flash Device Drivers -# # CONFIG_MTD_ONENAND is not set # -# Parallel port support +# UBI - Unsorted block images # +# CONFIG_MTD_UBI is not set # CONFIG_PARPORT is not set - -# -# Plug and Play support -# -# CONFIG_PNPACPI is not set - -# -# Block devices -# -# CONFIG_BLK_CPQ_DA is not set +CONFIG_BLK_DEV=y # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set # CONFIG_BLK_DEV_COW_COMMON is not set @@ -497,15 +461,12 @@ CONFIG_BLK_DEV_LOOP=y # CONFIG_BLK_DEV_RAM is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set - -# -# Misc devices -# +CONFIG_MISC_DEVICES=y +# CONFIG_PHANTOM is not set +# CONFIG_EEPROM_93CX6 is not set # CONFIG_SGI_IOC4 is not set - -# -# ATA/ATAPI/MFM/RLL support -# +# CONFIG_ENCLOSURE_SERVICES is not set +CONFIG_HAVE_IDE=y # CONFIG_IDE is not set # @@ -513,6 +474,7 @@ CONFIG_BLK_DEV_LOOP=y # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y +CONFIG_SCSI_DMA=y # CONFIG_SCSI_NETLINK is not set CONFIG_SCSI_PROC_FS=y @@ -533,6 +495,7 @@ CONFIG_CHR_DEV_SG=y # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set # CONFIG_SCSI_SCAN_ASYNC is not set +CONFIG_SCSI_WAIT_SCAN=m # # SCSI Transports @@ -540,12 +503,9 @@ CONFIG_CHR_DEV_SG=y # CONFIG_SCSI_SPI_ATTRS is not set # CONFIG_SCSI_FC_ATTRS is not set # CONFIG_SCSI_ISCSI_ATTRS is not set -# CONFIG_SCSI_SAS_ATTRS is not set # CONFIG_SCSI_SAS_LIBSAS is not set - -# -# SCSI low-level drivers -# +# CONFIG_SCSI_SRP_ATTRS is not set +CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set @@ -555,7 +515,6 @@ CONFIG_CHR_DEV_SG=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set -# CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ARCMSR is not set # CONFIG_MEGARAID_NEWGEN is not set # CONFIG_MEGARAID_LEGACY is not set @@ -566,6 +525,7 @@ CONFIG_CHR_DEV_SG=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -577,10 +537,6 @@ CONFIG_CHR_DEV_SG=y # CONFIG_SCSI_NSP32 is not set # CONFIG_SCSI_DEBUG is not set # CONFIG_SCSI_SRP is not set - -# -# Serial ATA (prod) and Parallel ATA (experimental) drivers -# CONFIG_ATA=y # CONFIG_ATA_NONSTANDARD is not set # CONFIG_SATA_AHCI is not set @@ -597,62 +553,48 @@ CONFIG_SATA_SIL=y # CONFIG_SATA_VIA is not set # CONFIG_SATA_VITESSE is not set # CONFIG_PATA_AMD is not set +# CONFIG_PATA_ARTOP is not set +# CONFIG_PATA_ATIIXP is not set +# CONFIG_PATA_CMD64X is not set # CONFIG_PATA_CS5520 is not set # CONFIG_PATA_EFAR is not set # CONFIG_ATA_GENERIC is not set +# CONFIG_PATA_HPT366 is not set # CONFIG_PATA_HPT3X3 is not set +# CONFIG_PATA_IT821X is not set # CONFIG_PATA_JMICRON is not set # CONFIG_PATA_TRIFLEX is not set # CONFIG_PATA_MARVELL is not set # CONFIG_PATA_MPIIX is not set +# CONFIG_PATA_OLDPIIX is not set # CONFIG_PATA_NETCELL is not set # CONFIG_PATA_RZ1000 is not set +# CONFIG_PATA_SERVERWORKS is not set # CONFIG_PATA_PDC2027X is not set # CONFIG_PATA_SIL680 is not set # CONFIG_PATA_VIA is not set # CONFIG_PATA_WINBOND is not set # CONFIG_PATA_PLATFORM is not set - -# -# Multi-device support (RAID and LVM) -# # CONFIG_MD is not set - -# -# Fusion MPT device support -# # CONFIG_FUSION is not set -# CONFIG_FUSION_SPI is not set -# CONFIG_FUSION_FC is not set -# CONFIG_FUSION_SAS is not set # # IEEE 1394 (FireWire) support # -# CONFIG_IEEE1394 is not set # -# I2O device support +# An alternative FireWire stack is available with EXPERIMENTAL=y # +# CONFIG_IEEE1394 is not set # CONFIG_I2O is not set - -# -# Network device support -# CONFIG_NETDEVICES=y +# CONFIG_NETDEVICES_MULTIQUEUE is not set # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set - -# -# ARCnet devices -# +# CONFIG_VETH is not set # CONFIG_ARCNET is not set - -# -# PHY device support -# CONFIG_PHYLIB=y # @@ -666,85 +608,59 @@ CONFIG_PHYLIB=y # CONFIG_VITESSE_PHY is not set CONFIG_SMSC_PHY=y # CONFIG_BROADCOM_PHY is not set +# CONFIG_ICPLUS_PHY is not set +# CONFIG_REALTEK_PHY is not set # CONFIG_FIXED_PHY is not set - -# -# Ethernet (10 or 100Mbit) -# +# CONFIG_MDIO_BITBANG is not set CONFIG_NET_ETHERNET=y CONFIG_MII=y +# CONFIG_AX88796 is not set # CONFIG_STNIC is not set # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_CASSINI is not set # CONFIG_NET_VENDOR_3COM is not set CONFIG_SMC91X=y - -# -# Tulip family network device support -# # CONFIG_NET_TULIP is not set # CONFIG_HP100 is not set +# CONFIG_IBM_NEW_EMAC_ZMII is not set +# CONFIG_IBM_NEW_EMAC_RGMII is not set +# CONFIG_IBM_NEW_EMAC_TAH is not set +# CONFIG_IBM_NEW_EMAC_EMAC4 is not set CONFIG_NET_PCI=y # CONFIG_PCNET32 is not set # CONFIG_AMD8111_ETH is not set # CONFIG_ADAPTEC_STARFIRE is not set # CONFIG_B44 is not set # CONFIG_FORCEDETH is not set -# CONFIG_DGRS is not set # CONFIG_EEPRO100 is not set # CONFIG_E100 is not set # CONFIG_FEALNX is not set # CONFIG_NATSEMI is not set # CONFIG_NE2K_PCI is not set # CONFIG_8139TOO is not set +# CONFIG_R6040 is not set # CONFIG_SIS900 is not set # CONFIG_EPIC100 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set # CONFIG_VIA_RHINE is not set - -# -# Ethernet (1000 Mbit) -# -# CONFIG_ACENIC is not set -# CONFIG_DL2K is not set -# CONFIG_E1000 is not set -# CONFIG_NS83820 is not set -# CONFIG_HAMACHI is not set -# CONFIG_R8169 is not set -# CONFIG_SIS190 is not set -# CONFIG_SKGE is not set -# CONFIG_SKY2 is not set -# CONFIG_SK98LIN is not set -# CONFIG_VIA_VELOCITY is not set -# CONFIG_TIGON3 is not set -# CONFIG_BNX2 is not set -# CONFIG_QLA3XXX is not set - -# -# Ethernet (10000 Mbit) -# -# CONFIG_CHELSIO_T1 is not set -# CONFIG_CHELSIO_T3 is not set -# CONFIG_IXGB is not set -# CONFIG_S2IO is not set -# CONFIG_MYRI10GE is not set -# CONFIG_NETXEN_NIC is not set - -# -# Token Ring devices -# +# CONFIG_NETDEV_1000 is not set +# CONFIG_NETDEV_10000 is not set # CONFIG_TR is not set # -# Wireless LAN (non-hamradio) +# Wireless LAN # -# CONFIG_NET_RADIO is not set +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set # -# Wan interfaces +# USB Network Adapters # +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_USBNET is not set # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_PPP is not set @@ -752,15 +668,7 @@ CONFIG_NET_PCI=y # CONFIG_NET_FC is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set - -# -# ISDN subsystem -# # CONFIG_ISDN is not set - -# -# Telephony Support -# # CONFIG_PHONE is not set # @@ -768,6 +676,7 @@ CONFIG_NET_PCI=y # CONFIG_INPUT=y # CONFIG_INPUT_FF_MEMLESS is not set +# CONFIG_INPUT_POLLDEV is not set # # Userland interfaces @@ -777,7 +686,6 @@ CONFIG_INPUT_MOUSEDEV=y CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set @@ -787,6 +695,7 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set @@ -821,31 +730,12 @@ CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y # CONFIG_LEGACY_PTYS is not set - -# -# IPMI -# # CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# -# CONFIG_WATCHDOG is not set # CONFIG_HW_RANDOM is not set -# CONFIG_GEN_RTC is not set -# CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set -# CONFIG_DRM is not set # CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# - -# -# I2C support -# +CONFIG_DEVPORT=y # CONFIG_I2C is not set # @@ -853,18 +743,27 @@ CONFIG_UNIX98_PTYS=y # # CONFIG_SPI is not set # CONFIG_SPI_MASTER is not set - -# -# Dallas's 1-wire bus -# # CONFIG_W1 is not set - -# -# Hardware Monitoring support -# +# CONFIG_POWER_SUPPLY is not set CONFIG_HWMON=y # CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_IT87 is not set +# CONFIG_SENSORS_PC87360 is not set +# CONFIG_SENSORS_SIS5595 is not set +# CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_VIA686A is not set +# CONFIG_SENSORS_VT8231 is not set +# CONFIG_SENSORS_W83627HF is not set +# CONFIG_SENSORS_W83627EHF is not set # CONFIG_HWMON_DEBUG_CHIP is not set +CONFIG_THERMAL=y +# CONFIG_WATCHDOG is not set + +# +# Sonics Silicon Backplane +# +CONFIG_SSB_POSSIBLE=y +# CONFIG_SSB is not set # # Multifunction device drivers @@ -875,23 +774,27 @@ CONFIG_HWMON=y # Multimedia devices # # CONFIG_VIDEO_DEV is not set - -# -# Digital Video Broadcasting Devices -# -# CONFIG_DVB is not set -# CONFIG_USB_DABUSB is not set +# CONFIG_DVB_CORE is not set +# CONFIG_DAB is not set # # Graphics support # -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +# CONFIG_DRM is not set +# CONFIG_VGASTATE is not set +# CONFIG_VIDEO_OUTPUT_CONTROL is not set CONFIG_FB=y CONFIG_FIRMWARE_EDID=y # CONFIG_FB_DDC is not set # CONFIG_FB_CFB_FILLRECT is not set # CONFIG_FB_CFB_COPYAREA is not set # CONFIG_FB_CFB_IMAGEBLIT is not set +# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set +# CONFIG_FB_SYS_FILLRECT is not set +# CONFIG_FB_SYS_COPYAREA is not set +# CONFIG_FB_SYS_IMAGEBLIT is not set +# CONFIG_FB_SYS_FOPS is not set +CONFIG_FB_DEFERRED_IO=y # CONFIG_FB_SVGALIB is not set # CONFIG_FB_MACMODES is not set # CONFIG_FB_BACKLIGHT is not set @@ -899,14 +802,13 @@ CONFIG_FIRMWARE_EDID=y # CONFIG_FB_TILEBLITTING is not set # -# Frambuffer hardware drivers +# Frame buffer hardware drivers # # CONFIG_FB_CIRRUS is not set # CONFIG_FB_PM2 is not set # CONFIG_FB_CYBER2000 is not set # CONFIG_FB_ASILIANT is not set # CONFIG_FB_IMSTT is not set -# CONFIG_FB_EPSON1355 is not set # CONFIG_FB_S1D13XXX is not set # CONFIG_FB_NVIDIA is not set # CONFIG_FB_RIVA is not set @@ -920,22 +822,27 @@ CONFIG_FIRMWARE_EDID=y # CONFIG_FB_KYRO is not set # CONFIG_FB_3DFX is not set # CONFIG_FB_VOODOO1 is not set +# CONFIG_FB_VT8623 is not set # CONFIG_FB_TRIDENT is not set +# CONFIG_FB_ARK is not set # CONFIG_FB_VIRTUAL is not set +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Display device support +# +# CONFIG_DISPLAY_SUPPORT is not set # # Console display driver support # CONFIG_DUMMY_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set # CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set # CONFIG_FONTS is not set CONFIG_FONT_8x8=y CONFIG_FONT_8x16=y - -# -# Logo configuration -# CONFIG_LOGO=y # CONFIG_LOGO_LINUX_MONO is not set # CONFIG_LOGO_LINUX_VGA16 is not set @@ -958,39 +865,38 @@ CONFIG_SOUND=y # Open Sound System # CONFIG_SOUND_PRIME=y -# CONFIG_OBSOLETE_OSS is not set -# CONFIG_SOUND_BT878 is not set -# CONFIG_SOUND_ICH is not set # CONFIG_SOUND_TRIDENT is not set # CONFIG_SOUND_MSNDCLAS is not set # CONFIG_SOUND_MSNDPIN is not set -# CONFIG_SOUND_VIA82CXXX is not set - -# -# HID Devices -# +CONFIG_HID_SUPPORT=y CONFIG_HID=y # CONFIG_HID_DEBUG is not set +# CONFIG_HIDRAW is not set # -# USB support +# USB Input Devices # +CONFIG_USB_HID=y +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_USB_HIDDEV is not set +CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB_ARCH_HAS_EHCI=y CONFIG_USB=y -CONFIG_USB_DEBUG=y +# CONFIG_USB_DEBUG is not set +# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set # # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y +# CONFIG_USB_DEVICE_CLASS is not set # # USB Host Controller Drivers # CONFIG_USB_EHCI_HCD=y -# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set # CONFIG_USB_ISP116X_HCD is not set CONFIG_USB_OHCI_HCD=y # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set @@ -998,6 +904,7 @@ CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_LITTLE_ENDIAN=y # CONFIG_USB_UHCI_HCD is not set # CONFIG_USB_SL811_HCD is not set +# CONFIG_USB_R8A66597_HCD is not set # # USB Device Class drivers @@ -1015,49 +922,20 @@ CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_STORAGE=y # CONFIG_USB_STORAGE_DEBUG is not set # CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_ISD200 is not set # CONFIG_USB_STORAGE_DPCM is not set # CONFIG_USB_STORAGE_KARMA is not set # CONFIG_USB_LIBUSUAL is not set -# -# USB Input Devices -# -CONFIG_USB_HID=y -# CONFIG_USB_HIDINPUT_POWERBOOK is not set -# CONFIG_USB_HIDDEV is not set -# CONFIG_USB_AIPTEK is not set -# CONFIG_USB_WACOM is not set -# CONFIG_USB_ACECAD is not set -# CONFIG_USB_KBTAB is not set -# CONFIG_USB_POWERMATE is not set -# CONFIG_USB_TOUCHSCREEN is not set -# CONFIG_USB_XPAD is not set -# CONFIG_USB_ATI_REMOTE is not set -# CONFIG_USB_ATI_REMOTE2 is not set -# CONFIG_USB_APPLETOUCH is not set -# CONFIG_USB_GTCO is not set - # # USB Imaging devices # # CONFIG_USB_MICROTEK is not set - -# -# USB Network Adapters -# -# CONFIG_USB_KAWETH is not set -# CONFIG_USB_PEGASUS is not set -# CONFIG_USB_USBNET_MII is not set -# CONFIG_USB_USBNET is not set CONFIG_USB_MON=y # # USB port drivers # - -# -# USB Serial Converter support -# # CONFIG_USB_SERIAL is not set # @@ -1078,67 +956,17 @@ CONFIG_USB_MON=y # CONFIG_USB_LD is not set # CONFIG_USB_TRANCEVIBRATOR is not set # CONFIG_USB_IOWARRIOR is not set - -# -# USB DSL modem support -# - -# -# USB Gadget Support -# # CONFIG_USB_GADGET is not set - -# -# MMC/SD Card support -# # CONFIG_MMC is not set - -# -# LED devices -# +# CONFIG_MEMSTICK is not set # CONFIG_NEW_LEDS is not set - -# -# LED drivers -# - -# -# LED Triggers -# - -# -# InfiniBand support -# # CONFIG_INFINIBAND is not set +# CONFIG_RTC_CLASS is not set # -# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) -# - -# -# Real Time Clock -# - -# -# DMA Engine support -# -# CONFIG_DMA_ENGINE is not set - -# -# DMA Clients -# - -# -# DMA Devices -# - -# -# Auxiliary Display support -# - -# -# Virtualization +# Userspace I/O # +# CONFIG_UIO is not set # # File systems @@ -1151,12 +979,11 @@ CONFIG_EXT2_FS=y # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set # CONFIG_XFS_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_ROMFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_DNOTIFY is not set CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set -# CONFIG_DNOTIFY is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_FUSE_FS is not set @@ -1181,14 +1008,14 @@ CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" # Pseudo filesystems # CONFIG_PROC_FS=y -# CONFIG_PROC_KCORE is not set +CONFIG_PROC_KCORE=y CONFIG_PROC_SYSCTL=y -# CONFIG_SYSFS is not set +CONFIG_SYSFS=y CONFIG_TMPFS=y # CONFIG_TMPFS_POSIX_ACL is not set # CONFIG_HUGETLBFS is not set # CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set # # Miscellaneous filesystems @@ -1197,14 +1024,13 @@ CONFIG_RAMFS=y # CONFIG_JFFS2_FS is not set CONFIG_CRAMFS=y # CONFIG_VXFS_FS is not set +# CONFIG_MINIX_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set +# CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set - -# -# Network File Systems -# +CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set @@ -1225,10 +1051,6 @@ CONFIG_SUNRPC=y # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" # CONFIG_NLS_CODEPAGE_437 is not set @@ -1275,13 +1097,15 @@ CONFIG_NLS_DEFAULT="iso8859-1" # CONFIG_TRACE_IRQFLAGS_SUPPORT=y # CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_WARN_DEPRECATED=y CONFIG_ENABLE_MUST_CHECK=y # CONFIG_MAGIC_SYSRQ is not set # CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_FS=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set -CONFIG_LOG_BUF_SHIFT=14 # CONFIG_DEBUG_BUGVERBOSE is not set +# CONFIG_SAMPLES is not set # CONFIG_SH_STANDARD_BIOS is not set # CONFIG_EARLY_SCIF_CONSOLE is not set # CONFIG_SH_KGDB is not set @@ -1290,11 +1114,48 @@ CONFIG_LOG_BUF_SHIFT=14 # Security options # # CONFIG_KEYS is not set - -# -# Cryptographic options -# -# CONFIG_CRYPTO is not set +# CONFIG_SECURITY is not set +CONFIG_CRYPTO=y +# CONFIG_CRYPTO_SEQIV is not set +# CONFIG_CRYPTO_MANAGER is not set +# CONFIG_CRYPTO_HMAC is not set +# CONFIG_CRYPTO_NULL is not set +# CONFIG_CRYPTO_MD4 is not set +# CONFIG_CRYPTO_MD5 is not set +# CONFIG_CRYPTO_SHA1 is not set +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set +# CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set +# CONFIG_CRYPTO_ECB is not set +# CONFIG_CRYPTO_CBC is not set +# CONFIG_CRYPTO_PCBC is not set +# CONFIG_CRYPTO_CTR is not set +# CONFIG_CRYPTO_GCM is not set +# CONFIG_CRYPTO_CCM is not set +# CONFIG_CRYPTO_CRYPTD is not set +# CONFIG_CRYPTO_DES is not set +# CONFIG_CRYPTO_FCRYPT is not set +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_TWOFISH is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_ARC4 is not set +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_ANUBIS is not set +# CONFIG_CRYPTO_SEED is not set +# CONFIG_CRYPTO_DEFLATE is not set +# CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_CAMELLIA is not set +# CONFIG_CRYPTO_TEST is not set +# CONFIG_CRYPTO_AUTHENC is not set +# CONFIG_CRYPTO_LZO is not set +CONFIG_CRYPTO_HW=y +# CONFIG_CRYPTO_DEV_HIFN_795X is not set # # Library routines @@ -1302,9 +1163,12 @@ CONFIG_LOG_BUF_SHIFT=14 CONFIG_BITREVERSE=y # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set +# CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y +# CONFIG_CRC7 is not set # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y CONFIG_PLIST=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y +CONFIG_HAS_DMA=y -- GitLab From dfec72285ef50f1a5ff342ed122652ccd3d0fb96 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 5 Mar 2008 18:36:28 -0800 Subject: [PATCH 541/923] net: replace __inline with inline Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/net/wan/sbni.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c index 15d5c58e57b..e59255a155a 100644 --- a/drivers/net/wan/sbni.c +++ b/drivers/net/wan/sbni.c @@ -751,7 +751,7 @@ upload_data( struct net_device *dev, unsigned framelen, unsigned frameno, } -static __inline void +static inline void send_complete( struct net_local *nl ) { #ifdef CONFIG_SBNI_MULTILINE -- GitLab From 4eb329a5aa113048ec9dbe2bd81ca27adab04e2d Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 5 Mar 2008 18:37:16 -0800 Subject: [PATCH 542/923] irda: replace __inline with inline Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- include/net/irda/irttp.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/net/irda/irttp.h b/include/net/irda/irttp.h index 32c385dd9e0..0788c23d282 100644 --- a/include/net/irda/irttp.h +++ b/include/net/irda/irttp.h @@ -169,17 +169,17 @@ int irttp_disconnect_request(struct tsap_cb *self, struct sk_buff *skb, void irttp_flow_request(struct tsap_cb *self, LOCAL_FLOW flow); struct tsap_cb *irttp_dup(struct tsap_cb *self, void *instance); -static __inline __u32 irttp_get_saddr(struct tsap_cb *self) +static inline __u32 irttp_get_saddr(struct tsap_cb *self) { return irlmp_get_saddr(self->lsap); } -static __inline __u32 irttp_get_daddr(struct tsap_cb *self) +static inline __u32 irttp_get_daddr(struct tsap_cb *self) { return irlmp_get_daddr(self->lsap); } -static __inline __u32 irttp_get_max_seg_size(struct tsap_cb *self) +static inline __u32 irttp_get_max_seg_size(struct tsap_cb *self) { return self->max_seg_size; } -- GitLab From d4f7751495747b0e857b2c302e37fe515cd03ef5 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 5 Mar 2008 18:37:39 -0800 Subject: [PATCH 543/923] isdn: replace __inline with inline Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/isdn/i4l/isdn_common.c | 4 ++-- drivers/isdn/i4l/isdn_v110.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c index 9cef6fcf587..d4ad6992f77 100644 --- a/drivers/isdn/i4l/isdn_common.c +++ b/drivers/isdn/i4l/isdn_common.c @@ -981,13 +981,13 @@ isdn_readbchan_tty(int di, int channel, struct tty_struct *tty, int cisco_hack) } -static __inline int +static inline int isdn_minor2drv(int minor) { return (dev->drvmap[minor]); } -static __inline int +static inline int isdn_minor2chan(int minor) { return (dev->chanmap[minor]); diff --git a/drivers/isdn/i4l/isdn_v110.c b/drivers/isdn/i4l/isdn_v110.c index 5484d3c38a5..c5d02b6aafa 100644 --- a/drivers/isdn/i4l/isdn_v110.c +++ b/drivers/isdn/i4l/isdn_v110.c @@ -62,7 +62,7 @@ static unsigned char V110_OffMatrix_38400[] = * and to 67452301 when keylen = 2. This is necessary because ordering on * the isdn line is the other way. */ -static __inline unsigned char +static inline unsigned char FlipBits(unsigned char c, int keylen) { unsigned char b = c; -- GitLab From 5a346a10c0b1192e7eae52f0f3a332f1d3f11226 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 5 Mar 2008 18:38:07 -0800 Subject: [PATCH 544/923] atm: replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: David S. Miller --- drivers/atm/firestream.c | 4 ++-- drivers/atm/fore200e.c | 4 ++-- drivers/atm/idt77252.c | 12 ++++++------ 3 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c index c662d686154..47c57a4294b 100644 --- a/drivers/atm/firestream.c +++ b/drivers/atm/firestream.c @@ -331,8 +331,8 @@ module_param(fs_keystream, int, 0); #define FS_DEBUG_QSIZE 0x00001000 -#define func_enter() fs_dprintk (FS_DEBUG_FLOW, "fs: enter %s\n", __FUNCTION__) -#define func_exit() fs_dprintk (FS_DEBUG_FLOW, "fs: exit %s\n", __FUNCTION__) +#define func_enter() fs_dprintk(FS_DEBUG_FLOW, "fs: enter %s\n", __func__) +#define func_exit() fs_dprintk(FS_DEBUG_FLOW, "fs: exit %s\n", __func__) static struct fs_dev *fs_boards = NULL; diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c index f97e050338f..9427a61f62b 100644 --- a/drivers/atm/fore200e.c +++ b/drivers/atm/fore200e.c @@ -95,8 +95,8 @@ #if 1 #define ASSERT(expr) if (!(expr)) { \ printk(FORE200E "assertion failed! %s[%d]: %s\n", \ - __FUNCTION__, __LINE__, #expr); \ - panic(FORE200E "%s", __FUNCTION__); \ + __func__, __LINE__, #expr); \ + panic(FORE200E "%s", __func__); \ } #else #define ASSERT(expr) do {} while (0) diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c index eee54c0cde6..b967919fb7e 100644 --- a/drivers/atm/idt77252.c +++ b/drivers/atm/idt77252.c @@ -555,7 +555,7 @@ idt77252_tx_dump(struct idt77252_dev *card) struct vc_map *vc; int i; - printk("%s\n", __FUNCTION__); + printk("%s\n", __func__); for (i = 0; i < card->tct_size; i++) { vc = card->vcs[i]; if (!vc) @@ -1035,7 +1035,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe) skb = sb_pool_skb(card, le32_to_cpu(rsqe->word_2)); if (skb == NULL) { printk("%s: NULL skb in %s, rsqe: %08x %08x %08x %08x\n", - card->name, __FUNCTION__, + card->name, __func__, le32_to_cpu(rsqe->word_1), le32_to_cpu(rsqe->word_2), le32_to_cpu(rsqe->word_3), le32_to_cpu(rsqe->word_4)); return; @@ -1873,7 +1873,7 @@ add_rx_skb(struct idt77252_dev *card, int queue, return; if (sb_pool_add(card, skb, queue)) { - printk("%s: SB POOL full\n", __FUNCTION__); + printk("%s: SB POOL full\n", __func__); goto outfree; } @@ -1883,7 +1883,7 @@ add_rx_skb(struct idt77252_dev *card, int queue, IDT77252_PRV_PADDR(skb) = paddr; if (push_rx_skb(card, skb, queue)) { - printk("%s: FB QUEUE full\n", __FUNCTION__); + printk("%s: FB QUEUE full\n", __func__); goto outunmap; } } @@ -3821,12 +3821,12 @@ static int __init idt77252_init(void) { struct sk_buff *skb; - printk("%s: at %p\n", __FUNCTION__, idt77252_init); + printk("%s: at %p\n", __func__, idt77252_init); if (sizeof(skb->cb) < sizeof(struct atm_skb_data) + sizeof(struct idt77252_skb_prv)) { printk(KERN_ERR "%s: skb->cb is too small (%lu < %lu)\n", - __FUNCTION__, (unsigned long) sizeof(skb->cb), + __func__, (unsigned long) sizeof(skb->cb), (unsigned long) sizeof(struct atm_skb_data) + sizeof(struct idt77252_skb_prv)); return -EIO; -- GitLab From cf3752e2d203bbbfc88d29e362e6938cef4339b3 Mon Sep 17 00:00:00 2001 From: James Chapman Date: Wed, 5 Mar 2008 18:39:08 -0800 Subject: [PATCH 545/923] [PPPOL2TP]: Make locking calls softirq-safe Fix locking issues in the pppol2tp driver which can cause a kernel crash on SMP boxes. There were two problems:- 1. The driver was violating read_lock() and write_lock() scheduling rules because it wasn't using softirq-safe locks in softirq contexts. So we now consistently use the _bh variants of the lock functions. 2. The driver was calling sk_dst_get() in pppol2tp_xmit() which was taking sk_dst_lock in softirq context. We now call __sk_dst_get(). Signed-off-by: James Chapman Signed-off-by: David S. Miller --- drivers/net/pppol2tp.c | 58 +++++++++++++++++++++--------------------- 1 file changed, 29 insertions(+), 29 deletions(-) diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c index 86e5dba079f..9a90cede0ec 100644 --- a/drivers/net/pppol2tp.c +++ b/drivers/net/pppol2tp.c @@ -302,14 +302,14 @@ pppol2tp_session_find(struct pppol2tp_tunnel *tunnel, u16 session_id) struct pppol2tp_session *session; struct hlist_node *walk; - read_lock(&tunnel->hlist_lock); + read_lock_bh(&tunnel->hlist_lock); hlist_for_each_entry(session, walk, session_list, hlist) { if (session->tunnel_addr.s_session == session_id) { - read_unlock(&tunnel->hlist_lock); + read_unlock_bh(&tunnel->hlist_lock); return session; } } - read_unlock(&tunnel->hlist_lock); + read_unlock_bh(&tunnel->hlist_lock); return NULL; } @@ -320,14 +320,14 @@ static struct pppol2tp_tunnel *pppol2tp_tunnel_find(u16 tunnel_id) { struct pppol2tp_tunnel *tunnel = NULL; - read_lock(&pppol2tp_tunnel_list_lock); + read_lock_bh(&pppol2tp_tunnel_list_lock); list_for_each_entry(tunnel, &pppol2tp_tunnel_list, list) { if (tunnel->stats.tunnel_id == tunnel_id) { - read_unlock(&pppol2tp_tunnel_list_lock); + read_unlock_bh(&pppol2tp_tunnel_list_lock); return tunnel; } } - read_unlock(&pppol2tp_tunnel_list_lock); + read_unlock_bh(&pppol2tp_tunnel_list_lock); return NULL; } @@ -344,7 +344,7 @@ static void pppol2tp_recv_queue_skb(struct pppol2tp_session *session, struct sk_ struct sk_buff *skbp; u16 ns = PPPOL2TP_SKB_CB(skb)->ns; - spin_lock(&session->reorder_q.lock); + spin_lock_bh(&session->reorder_q.lock); skb_queue_walk(&session->reorder_q, skbp) { if (PPPOL2TP_SKB_CB(skbp)->ns > ns) { __skb_insert(skb, skbp->prev, skbp, &session->reorder_q); @@ -360,7 +360,7 @@ static void pppol2tp_recv_queue_skb(struct pppol2tp_session *session, struct sk_ __skb_queue_tail(&session->reorder_q, skb); out: - spin_unlock(&session->reorder_q.lock); + spin_unlock_bh(&session->reorder_q.lock); } /* Dequeue a single skb. @@ -442,7 +442,7 @@ static void pppol2tp_recv_dequeue(struct pppol2tp_session *session) * expect to send up next, dequeue it and any other * in-sequence packets behind it. */ - spin_lock(&session->reorder_q.lock); + spin_lock_bh(&session->reorder_q.lock); skb_queue_walk_safe(&session->reorder_q, skb, tmp) { if (time_after(jiffies, PPPOL2TP_SKB_CB(skb)->expires)) { session->stats.rx_seq_discards++; @@ -470,13 +470,13 @@ static void pppol2tp_recv_dequeue(struct pppol2tp_session *session) goto out; } } - spin_unlock(&session->reorder_q.lock); + spin_unlock_bh(&session->reorder_q.lock); pppol2tp_recv_dequeue_skb(session, skb); - spin_lock(&session->reorder_q.lock); + spin_lock_bh(&session->reorder_q.lock); } out: - spin_unlock(&session->reorder_q.lock); + spin_unlock_bh(&session->reorder_q.lock); } /* Internal receive frame. Do the real work of receiving an L2TP data frame @@ -1059,7 +1059,7 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) /* Get routing info from the tunnel socket */ dst_release(skb->dst); - skb->dst = sk_dst_get(sk_tun); + skb->dst = dst_clone(__sk_dst_get(sk_tun)); skb_orphan(skb); skb->sk = sk_tun; @@ -1107,7 +1107,7 @@ static void pppol2tp_tunnel_closeall(struct pppol2tp_tunnel *tunnel) PRINTK(tunnel->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO, "%s: closing all sessions...\n", tunnel->name); - write_lock(&tunnel->hlist_lock); + write_lock_bh(&tunnel->hlist_lock); for (hash = 0; hash < PPPOL2TP_HASH_SIZE; hash++) { again: hlist_for_each_safe(walk, tmp, &tunnel->session_hlist[hash]) { @@ -1129,7 +1129,7 @@ again: * disappear as we're jumping between locks. */ sock_hold(sk); - write_unlock(&tunnel->hlist_lock); + write_unlock_bh(&tunnel->hlist_lock); lock_sock(sk); if (sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) { @@ -1154,11 +1154,11 @@ again: * list so we are guaranteed to make forward * progress. */ - write_lock(&tunnel->hlist_lock); + write_lock_bh(&tunnel->hlist_lock); goto again; } } - write_unlock(&tunnel->hlist_lock); + write_unlock_bh(&tunnel->hlist_lock); } /* Really kill the tunnel. @@ -1167,9 +1167,9 @@ again: static void pppol2tp_tunnel_free(struct pppol2tp_tunnel *tunnel) { /* Remove from socket list */ - write_lock(&pppol2tp_tunnel_list_lock); + write_lock_bh(&pppol2tp_tunnel_list_lock); list_del_init(&tunnel->list); - write_unlock(&pppol2tp_tunnel_list_lock); + write_unlock_bh(&pppol2tp_tunnel_list_lock); atomic_dec(&pppol2tp_tunnel_count); kfree(tunnel); @@ -1245,9 +1245,9 @@ static void pppol2tp_session_destruct(struct sock *sk) /* Delete the session socket from the * hash */ - write_lock(&tunnel->hlist_lock); + write_lock_bh(&tunnel->hlist_lock); hlist_del_init(&session->hlist); - write_unlock(&tunnel->hlist_lock); + write_unlock_bh(&tunnel->hlist_lock); atomic_dec(&pppol2tp_session_count); } @@ -1392,9 +1392,9 @@ static struct sock *pppol2tp_prepare_tunnel_socket(int fd, u16 tunnel_id, /* Add tunnel to our list */ INIT_LIST_HEAD(&tunnel->list); - write_lock(&pppol2tp_tunnel_list_lock); + write_lock_bh(&pppol2tp_tunnel_list_lock); list_add(&tunnel->list, &pppol2tp_tunnel_list); - write_unlock(&pppol2tp_tunnel_list_lock); + write_unlock_bh(&pppol2tp_tunnel_list_lock); atomic_inc(&pppol2tp_tunnel_count); /* Bump the reference count. The tunnel context is deleted @@ -1599,11 +1599,11 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr, sk->sk_user_data = session; /* Add session to the tunnel's hash list */ - write_lock(&tunnel->hlist_lock); + write_lock_bh(&tunnel->hlist_lock); hlist_add_head(&session->hlist, pppol2tp_session_id_hash(tunnel, session->tunnel_addr.s_session)); - write_unlock(&tunnel->hlist_lock); + write_unlock_bh(&tunnel->hlist_lock); atomic_inc(&pppol2tp_session_count); @@ -2205,7 +2205,7 @@ static struct pppol2tp_session *next_session(struct pppol2tp_tunnel *tunnel, str int next = 0; int i; - read_lock(&tunnel->hlist_lock); + read_lock_bh(&tunnel->hlist_lock); for (i = 0; i < PPPOL2TP_HASH_SIZE; i++) { hlist_for_each_entry(session, walk, &tunnel->session_hlist[i], hlist) { if (curr == NULL) { @@ -2223,7 +2223,7 @@ static struct pppol2tp_session *next_session(struct pppol2tp_tunnel *tunnel, str } } out: - read_unlock(&tunnel->hlist_lock); + read_unlock_bh(&tunnel->hlist_lock); if (!found) session = NULL; @@ -2234,13 +2234,13 @@ static struct pppol2tp_tunnel *next_tunnel(struct pppol2tp_tunnel *curr) { struct pppol2tp_tunnel *tunnel = NULL; - read_lock(&pppol2tp_tunnel_list_lock); + read_lock_bh(&pppol2tp_tunnel_list_lock); if (list_is_last(&curr->list, &pppol2tp_tunnel_list)) { goto out; } tunnel = list_entry(curr->list.next, struct pppol2tp_tunnel, list); out: - read_unlock(&pppol2tp_tunnel_list_lock); + read_unlock_bh(&pppol2tp_tunnel_list_lock); return tunnel; } -- GitLab From e653181dd6b3ad38ce14904351b03a5388f4b0f7 Mon Sep 17 00:00:00 2001 From: James Chapman Date: Wed, 5 Mar 2008 18:40:01 -0800 Subject: [PATCH 546/923] [PPPOL2TP]: Fix SMP issues in skb reorder queue handling When walking a session's packet reorder queue, use skb_queue_walk_safe() since the list could be modified inside the loop. Rearrange the unlinking skbs from the reorder queue such that it is done while the queue lock is held in pppol2tp_recv_dequeue() when walking the skb list. A version of this patch was suggested by Jarek Poplawski. Signed-off-by: James Chapman Signed-off-by: David S. Miller --- drivers/net/pppol2tp.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c index 9a90cede0ec..3d10ca050b7 100644 --- a/drivers/net/pppol2tp.c +++ b/drivers/net/pppol2tp.c @@ -342,10 +342,11 @@ static struct pppol2tp_tunnel *pppol2tp_tunnel_find(u16 tunnel_id) static void pppol2tp_recv_queue_skb(struct pppol2tp_session *session, struct sk_buff *skb) { struct sk_buff *skbp; + struct sk_buff *tmp; u16 ns = PPPOL2TP_SKB_CB(skb)->ns; spin_lock_bh(&session->reorder_q.lock); - skb_queue_walk(&session->reorder_q, skbp) { + skb_queue_walk_safe(&session->reorder_q, skbp, tmp) { if (PPPOL2TP_SKB_CB(skbp)->ns > ns) { __skb_insert(skb, skbp->prev, skbp, &session->reorder_q); PRINTK(session->debug, PPPOL2TP_MSG_SEQ, KERN_DEBUG, @@ -371,10 +372,9 @@ static void pppol2tp_recv_dequeue_skb(struct pppol2tp_session *session, struct s int length = PPPOL2TP_SKB_CB(skb)->length; struct sock *session_sock = NULL; - /* We're about to requeue the skb, so unlink it and return resources + /* We're about to requeue the skb, so return resources * to its current owner (a socket receive buffer). */ - skb_unlink(skb, &session->reorder_q); skb_orphan(skb); tunnel->stats.rx_packets++; @@ -470,6 +470,11 @@ static void pppol2tp_recv_dequeue(struct pppol2tp_session *session) goto out; } } + __skb_unlink(skb, &session->reorder_q); + + /* Process the skb. We release the queue lock while we + * do so to let other contexts process the queue. + */ spin_unlock_bh(&session->reorder_q.lock); pppol2tp_recv_dequeue_skb(session, skb); spin_lock_bh(&session->reorder_q.lock); -- GitLab From 09a76031f19bc77beb081e8ff7bfde731af93f50 Mon Sep 17 00:00:00 2001 From: SDiZ Date: Wed, 5 Mar 2008 18:43:50 -0800 Subject: [PATCH 547/923] bluetooth: CONWISE Technology based adapters with buggy SCO support (bugzilla #9027) From: SDiZ Fix the CONWISE Technology based adapters with buggy SCO support issue (bugzilla #9027) Signed-off-by: Andrew Morton Acked-by: Marcel Holtmann Signed-off-by: David S. Miller --- drivers/bluetooth/hci_usb.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/bluetooth/hci_usb.c b/drivers/bluetooth/hci_usb.c index 372c7ef633d..4f8a744c90b 100644 --- a/drivers/bluetooth/hci_usb.c +++ b/drivers/bluetooth/hci_usb.c @@ -148,6 +148,9 @@ static struct usb_device_id blacklist_ids[] = { { USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC }, { USB_DEVICE(0x0400, 0x080a), .driver_info = HCI_BROKEN_ISOC }, + /* CONWISE Technology based adapters with buggy SCO support */ + { USB_DEVICE(0x0e5e, 0x6622), .driver_info = HCI_BROKEN_ISOC }, + /* Belkin F8T012 and F8T013 devices */ { USB_DEVICE(0x050d, 0x0012), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, { USB_DEVICE(0x050d, 0x0013), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, -- GitLab From 147e2d59833e994cc99341806a88b9e59be41391 Mon Sep 17 00:00:00 2001 From: Dave Young Date: Wed, 5 Mar 2008 18:45:59 -0800 Subject: [PATCH 548/923] bluetooth: hci_core: defer hci_unregister_sysfs() Alon Bar-Lev reports: Feb 16 23:41:33 alon1 usb 3-1: configuration #1 chosen from 1 choice Feb 16 23:41:33 alon1 BUG: unable to handle kernel NULL pointer dereference at virtual address 00000008 Feb 16 23:41:33 alon1 printing eip: c01b2db6 *pde = 00000000 Feb 16 23:41:33 alon1 Oops: 0000 [#1] PREEMPT Feb 16 23:41:33 alon1 Modules linked in: ppp_deflate zlib_deflate zlib_inflate bsd_comp ppp_async rfcomm l2cap hci_usb vmnet(P) vmmon(P) tun radeon drm autofs4 ipv6 aes_generic crypto_algapi ieee80211_crypt_ccmp nf_nat_irc nf_nat_ftp nf_conntrack_irc nf_conntrack_ftp ipt_MASQUERADE iptable_nat nf_nat ipt_REJECT xt_tcpudp ipt_LOG xt_limit xt_state nf_conntrack_ipv4 nf_conntrack iptable_filter ip_tables x_tables snd_pcm_oss snd_mixer_oss snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device bluetooth ppp_generic slhc ioatdma dca cfq_iosched cpufreq_powersave cpufreq_ondemand cpufreq_conservative acpi_cpufreq freq_table uinput fan af_packet nls_cp1255 nls_iso8859_1 nls_utf8 nls_base pcmcia snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm nsc_ircc snd_timer ipw2200 thinkpad_acpi irda snd ehci_hcd yenta_socket uhci_hcd psmouse ieee80211 soundcore intel_agp hwmon rsrc_nonstatic pcspkr e1000 crc_ccitt snd_page_alloc i2c_i801 ieee80211_crypt pcmcia_core agpgart thermal bat! tery nvram rtc sr_mod ac sg firmware_class button processor cdrom unix usbcore evdev ext3 jbd ext2 mbcache loop ata_piix libata sd_mod scsi_mod Feb 16 23:41:33 alon1 Feb 16 23:41:33 alon1 Pid: 4, comm: events/0 Tainted: P (2.6.24-gentoo-r2 #1) Feb 16 23:41:33 alon1 EIP: 0060:[] EFLAGS: 00010282 CPU: 0 Feb 16 23:41:33 alon1 EIP is at sysfs_get_dentry+0x26/0x80 Feb 16 23:41:33 alon1 EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: f48a2210 Feb 16 23:41:33 alon1 ESI: f72eb900 EDI: f4803ae0 EBP: f4803ae0 ESP: f7c49efc Feb 16 23:41:33 alon1 hcid[7004]: HCI dev 0 registered Feb 16 23:41:33 alon1 DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 Feb 16 23:41:33 alon1 Process events/0 (pid: 4, ti=f7c48000 task=f7c3efc0 task.ti=f7c48000) Feb 16 23:41:33 alon1 Stack: f7cb6140 f4822668 f7e71e10 c01b304d ffffffff ffffffff fffffffe c030ba9c Feb 16 23:41:33 alon1 f7cb6140 f4822668 f6da6720 f7cb6140 f4822668 f6da6720 c030ba8e c01ce20b Feb 16 23:41:33 alon1 f6e9dd00 c030ba8e f6da6720 f6e9dd00 f6e9dd00 00000000 f4822600 00000000 Feb 16 23:41:33 alon1 Call Trace: Feb 16 23:41:33 alon1 [] sysfs_move_dir+0x3d/0x1f0 Feb 16 23:41:33 alon1 [] kobject_move+0x9b/0x120 Feb 16 23:41:33 alon1 [] device_move+0x51/0x110 Feb 16 23:41:33 alon1 [] del_conn+0x0/0x70 [bluetooth] Feb 16 23:41:33 alon1 [] del_conn+0x19/0x70 [bluetooth] Feb 16 23:41:33 alon1 [] run_workqueue+0x81/0x140 Feb 16 23:41:33 alon1 [] schedule+0x168/0x2e0 Feb 16 23:41:33 alon1 [] autoremove_wake_function+0x0/0x50 Feb 16 23:41:33 alon1 [] worker_thread+0x9b/0xf0 Feb 16 23:41:33 alon1 [] autoremove_wake_function+0x0/0x50 Feb 16 23:41:33 alon1 [] worker_thread+0x0/0xf0 Feb 16 23:41:33 alon1 [] kthread+0x42/0x70 Feb 16 23:41:33 alon1 [] kthread+0x0/0x70 Feb 16 23:41:33 alon1 [] kernel_thread_helper+0x7/0x18 Feb 16 23:41:33 alon1 ======================= Feb 16 23:41:33 alon1 Code: 26 00 00 00 00 57 89 c7 a1 50 1b 3a c0 56 53 8b 70 38 85 f6 74 08 8b 0e 85 c9 74 58 ff 06 8b 56 50 39 fa 74 47 89 fb eb 02 89 c3 <8b> 43 08 39 c2 75 f7 8b 46 08 83 c0 68 e8 98 e7 10 00 8b 43 10 Feb 16 23:41:33 alon1 EIP: [] sysfs_get_dentry+0x26/0x80 SS:ESP 0068:f7c49efc Feb 16 23:41:33 alon1 ---[ end trace aae864e9592acc1d ]--- Defer hci_unregister_sysfs because hci device could be destructed while hci conn devices still there. Signed-off-by: Dave Young Tested-by: Stefan Seyfried Acked-by: Alon Bar-Lev Signed-off-by: Andrew Morton Acked-by: Marcel Holtmann --- net/bluetooth/hci_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 930b58e7149..aec6929f5c1 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -902,8 +902,6 @@ int hci_unregister_dev(struct hci_dev *hdev) BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type); - hci_unregister_sysfs(hdev); - write_lock_bh(&hci_dev_list_lock); list_del(&hdev->list); write_unlock_bh(&hci_dev_list_lock); @@ -915,6 +913,8 @@ int hci_unregister_dev(struct hci_dev *hdev) hci_notify(hdev, HCI_DEV_UNREG); + hci_unregister_sysfs(hdev); + __hci_dev_put(hdev); return 0; -- GitLab From 04005dd9ae7bf1031408869c33df96149ebb1086 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Wed, 5 Mar 2008 18:47:03 -0800 Subject: [PATCH 549/923] bluetooth: Make hci_sock_cleanup() return void hci_sock_cleanup() always returns 0 and its return value isn't used anywhere in the code. Compile-tested with 'make allyesconfig && make net/bluetooth/bluetooth.ko' Signed-off-by: Tobias Klauser Signed-off-by: Andrew Morton Acked-by: Marcel Holtmann --- include/net/bluetooth/bluetooth.h | 2 +- net/bluetooth/hci_sock.c | 4 +--- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 771d17783c1..750648df13f 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -170,7 +170,7 @@ static inline int skb_frags_no(struct sk_buff *skb) int bt_err(__u16 code); extern int hci_sock_init(void); -extern int hci_sock_cleanup(void); +extern void hci_sock_cleanup(void); extern int bt_sysfs_init(void); extern void bt_sysfs_cleanup(void); diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 14991323c27..b5d4019d357 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -734,7 +734,7 @@ error: return err; } -int __exit hci_sock_cleanup(void) +void __exit hci_sock_cleanup(void) { if (bt_sock_unregister(BTPROTO_HCI) < 0) BT_ERR("HCI socket unregistration failed"); @@ -742,6 +742,4 @@ int __exit hci_sock_cleanup(void) hci_unregister_notifier(&hci_sock_nblock); proto_unregister(&hci_sk_proto); - - return 0; } -- GitLab From a4e2acf01a7e5fcd960fc332335ca10313641f4b Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Wed, 5 Mar 2008 18:47:40 -0800 Subject: [PATCH 550/923] bluetooth: make bnep_sock_cleanup() return void bnep_sock_cleanup() always returns 0 and its return value isn't used anywhere in the code. Signed-off-by: Tobias Klauser Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/bluetooth/bnep/bnep.h | 2 +- net/bluetooth/bnep/sock.c | 4 +--- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/net/bluetooth/bnep/bnep.h b/net/bluetooth/bnep/bnep.h index a2992280c3d..e69244dd8de 100644 --- a/net/bluetooth/bnep/bnep.h +++ b/net/bluetooth/bnep/bnep.h @@ -174,7 +174,7 @@ struct bnep_session { void bnep_net_setup(struct net_device *dev); int bnep_sock_init(void); -int bnep_sock_cleanup(void); +void bnep_sock_cleanup(void); static inline int bnep_mc_hash(__u8 *addr) { diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c index 81065e548a1..201e5b1ce47 100644 --- a/net/bluetooth/bnep/sock.c +++ b/net/bluetooth/bnep/sock.c @@ -257,12 +257,10 @@ error: return err; } -int __exit bnep_sock_cleanup(void) +void __exit bnep_sock_cleanup(void) { if (bt_sock_unregister(BTPROTO_BNEP) < 0) BT_ERR("Can't unregister BNEP socket"); proto_unregister(&bnep_proto); - - return 0; } -- GitLab From 32c9874759651b69e496f89ec9e5e6702f67ffca Mon Sep 17 00:00:00 2001 From: Jon Schindler Date: Wed, 5 Mar 2008 18:49:21 -0800 Subject: [PATCH 551/923] drivers/net/appletalk/ltpc.c: replace init_module&cleanup_module with module_init&module_exit Replaced init_module and cleanup_module with static functions and module_init/module_exit. Signed-off-by: Jon Schindler Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/net/appletalk/ltpc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c index 6ab2c2d4d67..fef5560bc7a 100644 --- a/drivers/net/appletalk/ltpc.c +++ b/drivers/net/appletalk/ltpc.c @@ -1252,7 +1252,7 @@ module_param(irq, int, 0); module_param(dma, int, 0); -int __init init_module(void) +static int __init ltpc_module_init(void) { if(io == 0) printk(KERN_NOTICE @@ -1263,6 +1263,7 @@ int __init init_module(void) return PTR_ERR(dev_ltpc); return 0; } +module_init(ltpc_module_init); #endif static void __exit ltpc_cleanup(void) -- GitLab From 7249d4c3985454ee5cd150198bb21cb15dee242e Mon Sep 17 00:00:00 2001 From: Jon Schindler Date: Wed, 5 Mar 2008 18:49:51 -0800 Subject: [PATCH 552/923] drivers/net/arcnet/capmode.c: replace init_module&cleanup_module with module_init&module_exit Replaced init_module and cleanup_module with static functions and module_init/module_exit. Signed-off-by: Jon Schindler Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/net/arcnet/capmode.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/arcnet/capmode.c b/drivers/net/arcnet/capmode.c index cc4610db639..02cb8f1c114 100644 --- a/drivers/net/arcnet/capmode.c +++ b/drivers/net/arcnet/capmode.c @@ -80,17 +80,19 @@ void arcnet_cap_init(void) #ifdef MODULE -int __init init_module(void) +static int __init capmode_module_init(void) { printk(VERSION); arcnet_cap_init(); return 0; } -void cleanup_module(void) +static void __exit capmode_module_exit(void) { arcnet_unregister_proto(&capmode_proto); } +module_init(capmode_module_init); +module_exit(capmode_module_exit); MODULE_LICENSE("GPL"); #endif /* MODULE */ -- GitLab From 3cfbb6771b11c161aaee0cc839f923fc208868b8 Mon Sep 17 00:00:00 2001 From: Jon Schindler Date: Wed, 5 Mar 2008 18:50:16 -0800 Subject: [PATCH 553/923] drivers/net/apne.c: replace init_module&cleanup_module with module_init&module_exit Replaced init_module and cleanup_module with static functions and module_init/module_exit. Signed-off-by: Jon Schindler Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/net/apne.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/apne.c b/drivers/net/apne.c index c12cbdf368b..47a8275d396 100644 --- a/drivers/net/apne.c +++ b/drivers/net/apne.c @@ -569,7 +569,7 @@ static irqreturn_t apne_interrupt(int irq, void *dev_id) #ifdef MODULE static struct net_device *apne_dev; -int __init init_module(void) +static int __init apne_module_init(void) { apne_dev = apne_probe(-1); if (IS_ERR(apne_dev)) @@ -577,7 +577,7 @@ int __init init_module(void) return 0; } -void __exit cleanup_module(void) +static void __exit apne_module_exit(void) { unregister_netdev(apne_dev); @@ -591,7 +591,8 @@ void __exit cleanup_module(void) free_netdev(apne_dev); } - +module_init(apne_module_init); +module_exit(apne_module_exit); #endif static int init_pcmcia(void) -- GitLab From e8a1d919d16abaccc4564bd913cac9a0c1aaf078 Mon Sep 17 00:00:00 2001 From: Jon Schindler Date: Wed, 5 Mar 2008 18:50:41 -0800 Subject: [PATCH 554/923] drivers/net/ac3200.c: replace init_module&cleanup_module with module_init&module_exit Replace init_module and cleanup_module with static functions and module_init/module_exit. Signed-off-by: Jon Schindler Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/net/ac3200.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/ac3200.c b/drivers/net/ac3200.c index 5136d94923a..b1448637107 100644 --- a/drivers/net/ac3200.c +++ b/drivers/net/ac3200.c @@ -369,7 +369,7 @@ MODULE_PARM_DESC(mem, "Memory base address(es)"); MODULE_DESCRIPTION("Ansel AC3200 EISA ethernet driver"); MODULE_LICENSE("GPL"); -int __init init_module(void) +static int __init ac3200_module_init(void) { struct net_device *dev; int this_dev, found = 0; @@ -404,8 +404,7 @@ static void cleanup_card(struct net_device *dev) iounmap(ei_status.mem); } -void __exit -cleanup_module(void) +static void __exit ac3200_module_exit(void) { int this_dev; @@ -418,4 +417,6 @@ cleanup_module(void) } } } +module_init(ac3200_module_init); +module_exit(ac3200_module_exit); #endif /* MODULE */ -- GitLab From 02ff05c49d7804f2574f358a937b43a41d15e36e Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 5 Mar 2008 18:51:19 -0800 Subject: [PATCH 555/923] net/enc28j60: oops fix Prevent oops on enc28j60 packet RX: make sure buffers are aligned. Not all architectures support unaligned accesses in kernel space. Signed-off-by: David Brownell Acked-by: Claudio Lanconelli Signed-off-by: David S. Miller --- drivers/net/enc28j60.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/enc28j60.c b/drivers/net/enc28j60.c index 0809a6a5a28..46a90e9ec56 100644 --- a/drivers/net/enc28j60.c +++ b/drivers/net/enc28j60.c @@ -900,7 +900,7 @@ static void enc28j60_hw_rx(struct net_device *ndev) if (RSV_GETBIT(rxstat, RSV_LENCHECKERR)) ndev->stats.rx_frame_errors++; } else { - skb = dev_alloc_skb(len); + skb = dev_alloc_skb(len + NET_IP_ALIGN); if (!skb) { if (netif_msg_rx_err(priv)) dev_err(&ndev->dev, @@ -908,6 +908,7 @@ static void enc28j60_hw_rx(struct net_device *ndev) ndev->stats.rx_dropped++; } else { skb->dev = ndev; + skb_reserve(skb, NET_IP_ALIGN); /* copy the packet from the receive buffer */ enc28j60_mem_read(priv, priv->next_pk_ptr + sizeof(rsv), len, skb_put(skb, len)); -- GitLab From 1ff82fe0024e8070c38346b8abc1ff09612dea4c Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 5 Mar 2008 18:53:55 -0800 Subject: [PATCH 556/923] RxRPC: fix rxrpc_recvmsg()'s returning of msg_name Fix rxrpc_recvmsg() to return msg_name correctly. We shouldn't overwrite the *msg struct, but should rather write into msg->msg_name (there's a '&' unary operator that shouldn't be there). Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/rxrpc/ar-recvmsg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/rxrpc/ar-recvmsg.c b/net/rxrpc/ar-recvmsg.c index f19121d4795..a39bf97f883 100644 --- a/net/rxrpc/ar-recvmsg.c +++ b/net/rxrpc/ar-recvmsg.c @@ -143,7 +143,8 @@ int rxrpc_recvmsg(struct kiocb *iocb, struct socket *sock, /* copy the peer address and timestamp */ if (!continue_call) { if (msg->msg_name && msg->msg_namelen > 0) - memcpy(&msg->msg_name, &call->conn->trans->peer->srx, + memcpy(msg->msg_name, + &call->conn->trans->peer->srx, sizeof(call->conn->trans->peer->srx)); sock_recv_timestamp(msg, &rx->sk, skb); } -- GitLab From 8b03c040e4efaaad3fc09f07f6af6e449205c75a Mon Sep 17 00:00:00 2001 From: Kristoffer Ericson Date: Tue, 4 Mar 2008 23:09:25 -0800 Subject: [PATCH 557/923] sh: hp6xx: Correct APM output. This patch fixes the old non-verbose hp6xx apm code and enables some very basic apm output. We now get percentage (battery) output and basic time estimate. Signed-off-by: Kristoffer Ericson Signed-off-by: Paul Mundt --- arch/sh/boards/hp6xx/hp6xx_apm.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/arch/sh/boards/hp6xx/hp6xx_apm.c b/arch/sh/boards/hp6xx/hp6xx_apm.c index 640ca2a74f1..76b6776235d 100644 --- a/arch/sh/boards/hp6xx/hp6xx_apm.c +++ b/arch/sh/boards/hp6xx/hp6xx_apm.c @@ -2,6 +2,7 @@ * bios-less APM driver for hp680 * * Copyright 2005 (c) Andriy Skulysh + * Copyright 2008 (c) Kristoffer Ericson * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License. @@ -15,11 +16,11 @@ #include #include -#define SH7709_PGDR 0xa400012c - +/* percentage values */ #define APM_CRITICAL 10 #define APM_LOW 30 +/* resonably sane values */ #define HP680_BATTERY_MAX 898 #define HP680_BATTERY_MIN 486 #define HP680_BATTERY_AC_ON 1023 @@ -38,17 +39,26 @@ static void hp6x0_apm_get_power_status(struct apm_power_info *info) percentage = 100 * (battery - HP680_BATTERY_MIN) / (HP680_BATTERY_MAX - HP680_BATTERY_MIN); + /* % of full battery */ + info->battery_life = percentage; + + /* We want our estimates in minutes */ + info->units = 0; + + /* Extremely(!!) rough estimate, we will replace this with a datalist later on */ + info->time = (2 * battery); + info->ac_line_status = (battery > HP680_BATTERY_AC_ON) ? APM_AC_ONLINE : APM_AC_OFFLINE; - pgdr = ctrl_inb(SH7709_PGDR); + pgdr = ctrl_inb(PGDR); if (pgdr & PGDR_MAIN_BATTERY_OUT) { info->battery_status = APM_BATTERY_STATUS_NOT_PRESENT; info->battery_flag = 0x80; } else if (charging < 8) { info->battery_status = APM_BATTERY_STATUS_CHARGING; info->battery_flag = 0x08; - info->ac_line_status = 0xff; + info->ac_line_status = 0x01; } else if (percentage <= APM_CRITICAL) { info->battery_status = APM_BATTERY_STATUS_CRITICAL; info->battery_flag = 0x04; @@ -59,8 +69,6 @@ static void hp6x0_apm_get_power_status(struct apm_power_info *info) info->battery_status = APM_BATTERY_STATUS_HIGH; info->battery_flag = 0x01; } - - info->units = 0; } static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev) -- GitLab From b2839ed83f54d40870747ac8d655504dff63d1c5 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 6 Mar 2008 12:43:38 +0900 Subject: [PATCH 558/923] sh: Fix up section mismatches. Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/init.c | 2 +- arch/sh/kernel/io_trapped.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c index 80a31329ead..75fb03d3567 100644 --- a/arch/sh/kernel/cpu/init.c +++ b/arch/sh/kernel/cpu/init.c @@ -233,7 +233,7 @@ static void __init dsp_init(void) * and cache configuration in detect_cpu_and_cache_system(). */ -asmlinkage void __cpuinit sh_cpu_init(void) +asmlinkage void __init sh_cpu_init(void) { current_thread_info()->cpu = hard_smp_processor_id(); diff --git a/arch/sh/kernel/io_trapped.c b/arch/sh/kernel/io_trapped.c index 86a665d9220..39cd7f3aec7 100644 --- a/arch/sh/kernel/io_trapped.c +++ b/arch/sh/kernel/io_trapped.c @@ -32,7 +32,7 @@ EXPORT_SYMBOL_GPL(trapped_mem); #endif static DEFINE_SPINLOCK(trapped_lock); -int __init register_trapped_io(struct trapped_io *tiop) +int register_trapped_io(struct trapped_io *tiop) { struct resource *res; unsigned long len = 0, flags = 0; -- GitLab From fcb1fec7fece6b9889deaedf5b7d21f4f5a26381 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 6 Mar 2008 13:39:18 +0900 Subject: [PATCH 559/923] fb: pvr2fb: Fix up remaining section mismatch. Building with CONFIG_DEBUG_SECTION_MISMATCH=y reports: CC drivers/video/pvr2fb.o LD drivers/video/built-in.o WARNING: drivers/video/built-in.o(.text+0xb9b0): Section mismatch in reference from the function pvr2fb_check_var() to the variable .devinit.data:pvr2_fix The function pvr2fb_check_var() references the variable __devinitdata pvr2_fix. This is often because pvr2fb_check_var lacks a __devinitdata annotation or the annotation of pvr2_fix is wrong. This is obviously crap as no such reference exists, but it's a bit closer to reality from older versions which blamed the PCI table. The real problem was a reference to pvr2_var.vmode from pvr2fb_check_var(), as pvr2_var is flagged as __devinitdata (pvr2_fix is also, so at least that part is right). pvr2_var.vmode is just a fancy way of saying FB_VMODE_NONINTERLACED, so we just reference that explicitly instead. Signed-off-by: Paul Mundt --- drivers/video/pvr2fb.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/video/pvr2fb.c b/drivers/video/pvr2fb.c index 6a3d0b57489..8c863a7f654 100644 --- a/drivers/video/pvr2fb.c +++ b/drivers/video/pvr2fb.c @@ -1,16 +1,12 @@ -/* drivers/video/pvr2fb.c +/* + * drivers/video/pvr2fb.c * * Frame buffer and fbcon support for the NEC PowerVR2 found within the Sega * Dreamcast. * * Copyright (c) 2001 M. R. Brown - * Copyright (c) 2001, 2002, 2003, 2004, 2005 Paul Mundt - * - * This file is part of the LinuxDC project (linuxdc.sourceforge.net). + * Copyright (c) 2001 - 2008 Paul Mundt * - */ - -/* * This driver is mostly based on the excellent amifb and vfb sources. It uses * an odd scheme for converting hardware values to/from framebuffer values, * here are some hacked-up formulas: @@ -490,7 +486,7 @@ static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) } else { var->sync &= ~FB_SYNC_BROADCAST; var->vmode &= ~FB_VMODE_INTERLACED; - var->vmode |= pvr2_var.vmode; + var->vmode |= FB_VMODE_NONINTERLACED; } if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_TEST) { -- GitLab From dd4f99b42dcce8f84ff6b8ec3d375b54a0785c7e Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 6 Mar 2008 13:48:08 +0900 Subject: [PATCH 560/923] sh: hp6xx: Fix up hp6xx_apm build failure. Signed-off-by: Paul Mundt --- arch/sh/boards/hp6xx/hp6xx_apm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/sh/boards/hp6xx/hp6xx_apm.c b/arch/sh/boards/hp6xx/hp6xx_apm.c index 76b6776235d..177f4f028e0 100644 --- a/arch/sh/boards/hp6xx/hp6xx_apm.c +++ b/arch/sh/boards/hp6xx/hp6xx_apm.c @@ -27,6 +27,8 @@ #define MODNAME "hp6x0_apm" +#define PGDR 0xa400012c + static void hp6x0_apm_get_power_status(struct apm_power_info *info) { int battery, backup, charging, percentage; -- GitLab From 0f8afa7ca9117276e9519239ed0553be2f04d269 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 6 Mar 2008 13:56:33 +0900 Subject: [PATCH 561/923] fb: hitfb: Balance probe/remove section annotations. hitfb presently has probe using __init whilst remove uses __devexit. As this device can't possibly be hotplugged, switch to __exit and __exit_p() instead. Signed-off-by: Paul Mundt --- drivers/video/hitfb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/hitfb.c b/drivers/video/hitfb.c index 756c0ce8591..392a8be6aa7 100644 --- a/drivers/video/hitfb.c +++ b/drivers/video/hitfb.c @@ -403,7 +403,7 @@ static int __init hitfb_probe(struct platform_device *dev) return 0; } -static int __devexit hitfb_remove(struct platform_device *dev) +static int __exit hitfb_remove(struct platform_device *dev) { return unregister_framebuffer(&fb_info); } @@ -439,7 +439,7 @@ static int hitfb_resume(struct platform_device *dev) static struct platform_driver hitfb_driver = { .probe = hitfb_probe, - .remove = __devexit_p(hitfb_remove), + .remove = __exit_p(hitfb_remove), #ifdef CONFIG_PM .suspend = hitfb_suspend, .resume = hitfb_resume, -- GitLab From 92d9cd1059f80b9c89dee191ffb88b0872e6a7ae Mon Sep 17 00:00:00 2001 From: David Chinner Date: Thu, 6 Mar 2008 13:45:10 +1100 Subject: [PATCH 562/923] [XFS] 977545 977545 977545 977545 977545 977545 xfsaild causing too many wakeups Idle state is not being detected properly by the xfsaild push code. The current idle state is detected by an empty list which may never happen with mostly idle filesystem or one using lazy superblock counters. A single dirty item in the list that exists beyond the push target can result repeated looping attempting to push up to the target because it fails to check if the push target has been acheived or not. Fix by considering a dirty list with everything past the target as an idle state and set the timeout appropriately. SGI-PV: 977545 SGI-Modid: xfs-linux-melb:xfs-kern:30532a Signed-off-by: David Chinner Signed-off-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/xfs_trans_ail.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c index 4d6330eddc8..76d470d8a1e 100644 --- a/fs/xfs/xfs_trans_ail.c +++ b/fs/xfs/xfs_trans_ail.c @@ -261,16 +261,19 @@ xfsaild_push( xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE); } - /* - * We reached the target so wait a bit longer for I/O to complete and - * remove pushed items from the AIL before we start the next scan from - * the start of the AIL. - */ - if ((XFS_LSN_CMP(lsn, target) >= 0)) { + if (!count) { + /* We're past our target or empty, so idle */ + tout = 1000; + } else if (XFS_LSN_CMP(lsn, target) >= 0) { + /* + * We reached the target so wait a bit longer for I/O to + * complete and remove pushed items from the AIL before we + * start the next scan from the start of the AIL. + */ tout += 20; last_pushed_lsn = 0; } else if ((restarts > XFS_TRANS_PUSH_AIL_RESTARTS) || - (count && ((stuck * 100) / count > 90))) { + ((stuck * 100) / count > 90)) { /* * Either there is a lot of contention on the AIL or we * are stuck due to operations in progress. "Stuck" in this -- GitLab From 72772a3b5b158cddcfbbff3ef13b26b03a905158 Mon Sep 17 00:00:00 2001 From: David Chinner Date: Thu, 6 Mar 2008 13:49:43 +1100 Subject: [PATCH 563/923] [XFS] fix inode leak in xfs_iget_core() If the radix_tree_preload() fails, we need to destroy the inode we just read in before trying again. This could leak xfs_vnode structures when there is memory pressure. Noticed by Christoph Hellwig. SGI-PV: 977823 SGI-Modid: xfs-linux-melb:xfs-kern:30606a Signed-off-by: David Chinner Signed-off-by: Lachlan McIlroy Signed-off-by: Christoph Hellwig --- fs/xfs/xfs_iget.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index f01b07687fa..8e09b71f410 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -235,6 +235,7 @@ finish_inode: */ new_icl = kmem_zone_alloc(xfs_icluster_zone, KM_SLEEP); if (radix_tree_preload(GFP_KERNEL)) { + xfs_idestroy(ip); delay(1); goto again; } -- GitLab From 149b91e10769564711669adfff0f8af213d47ea8 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 6 Mar 2008 16:03:58 +0900 Subject: [PATCH 564/923] sh: Update r7780mp defconfig. This disables the PMB/32BIT=y by default in r7780mp, as turning this on presently results in build errors (for an admittedly experimental feature). Signed-off-by: Paul Mundt --- arch/sh/configs/r7780mp_defconfig | 91 ++++++++++++++++++++++--------- 1 file changed, 66 insertions(+), 25 deletions(-) diff --git a/arch/sh/configs/r7780mp_defconfig b/arch/sh/configs/r7780mp_defconfig index 2ad804ec920..1a072615ffd 100644 --- a/arch/sh/configs/r7780mp_defconfig +++ b/arch/sh/configs/r7780mp_defconfig @@ -1,9 +1,10 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.24-rc2 -# Tue Nov 13 20:32:39 2007 +# Linux kernel version: 2.6.25-rc4 +# Thu Mar 6 15:39:59 2008 # CONFIG_SUPERH=y +CONFIG_SUPERH32=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_BUG=y CONFIG_GENERIC_FIND_NEXT_BIT=y @@ -19,6 +20,8 @@ CONFIG_LOCKDEP_SUPPORT=y # CONFIG_ARCH_HAS_ILOG2_U32 is not set # CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_ARCH_NO_VIRT_TO_BUS=y +CONFIG_ARCH_SUPPORTS_AOUT=y +CONFIG_IO_TRAPPED=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # @@ -37,17 +40,20 @@ CONFIG_SYSVIPC_SYSCTL=y CONFIG_BSD_PROCESS_ACCT=y # CONFIG_BSD_PROCESS_ACCT_V3 is not set # CONFIG_TASKSTATS is not set -# CONFIG_USER_NS is not set # CONFIG_AUDIT is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=14 # CONFIG_CGROUPS is not set +CONFIG_GROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y -CONFIG_FAIR_USER_SCHED=y -# CONFIG_FAIR_CGROUP_SCHED is not set -# CONFIG_SYSFS_DEPRECATED is not set +# CONFIG_RT_GROUP_SCHED is not set +CONFIG_USER_SCHED=y +# CONFIG_CGROUP_SCHED is not set +CONFIG_SYSFS_DEPRECATED=y +CONFIG_SYSFS_DEPRECATED_V2=y # CONFIG_RELAY is not set +# CONFIG_NAMESPACES is not set # CONFIG_BLK_DEV_INITRD is not set CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y @@ -61,17 +67,27 @@ CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y +CONFIG_COMPAT_BRK=y CONFIG_BASE_FULL=y # CONFIG_FUTEX is not set CONFIG_ANON_INODES=y # CONFIG_EPOLL is not set CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set +CONFIG_PROFILING=y +# CONFIG_MARKERS is not set +CONFIG_OPROFILE=m +CONFIG_HAVE_OPROFILE=y +# CONFIG_HAVE_KPROBES is not set +# CONFIG_HAVE_KRETPROBES is not set +CONFIG_PROC_PAGE_MONITOR=y +CONFIG_SLABINFO=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 CONFIG_MODULES=y @@ -98,6 +114,8 @@ CONFIG_IOSCHED_NOOP=y # CONFIG_DEFAULT_CFQ is not set CONFIG_DEFAULT_NOOP=y CONFIG_DEFAULT_IOSCHED="noop" +CONFIG_CLASSIC_RCU=y +# CONFIG_PREEMPT_RCU is not set # # System type @@ -105,7 +123,9 @@ CONFIG_DEFAULT_IOSCHED="noop" CONFIG_CPU_SH4=y CONFIG_CPU_SH4A=y # CONFIG_CPU_SUBTYPE_SH7619 is not set +# CONFIG_CPU_SUBTYPE_SH7203 is not set # CONFIG_CPU_SUBTYPE_SH7206 is not set +# CONFIG_CPU_SUBTYPE_SH7263 is not set # CONFIG_CPU_SUBTYPE_SH7705 is not set # CONFIG_CPU_SUBTYPE_SH7706 is not set # CONFIG_CPU_SUBTYPE_SH7707 is not set @@ -114,6 +134,7 @@ CONFIG_CPU_SH4A=y # CONFIG_CPU_SUBTYPE_SH7710 is not set # CONFIG_CPU_SUBTYPE_SH7712 is not set # CONFIG_CPU_SUBTYPE_SH7720 is not set +# CONFIG_CPU_SUBTYPE_SH7721 is not set # CONFIG_CPU_SUBTYPE_SH7750 is not set # CONFIG_CPU_SUBTYPE_SH7091 is not set # CONFIG_CPU_SUBTYPE_SH7750R is not set @@ -122,12 +143,16 @@ CONFIG_CPU_SH4A=y # CONFIG_CPU_SUBTYPE_SH7751R is not set # CONFIG_CPU_SUBTYPE_SH7760 is not set # CONFIG_CPU_SUBTYPE_SH4_202 is not set +# CONFIG_CPU_SUBTYPE_SH7763 is not set # CONFIG_CPU_SUBTYPE_SH7770 is not set CONFIG_CPU_SUBTYPE_SH7780=y # CONFIG_CPU_SUBTYPE_SH7785 is not set # CONFIG_CPU_SUBTYPE_SHX3 is not set # CONFIG_CPU_SUBTYPE_SH7343 is not set # CONFIG_CPU_SUBTYPE_SH7722 is not set +# CONFIG_CPU_SUBTYPE_SH7366 is not set +# CONFIG_CPU_SUBTYPE_SH5_101 is not set +# CONFIG_CPU_SUBTYPE_SH5_103 is not set # # Memory management options @@ -137,7 +162,8 @@ CONFIG_MMU=y CONFIG_PAGE_OFFSET=0x80000000 CONFIG_MEMORY_START=0x08000000 CONFIG_MEMORY_SIZE=0x08000000 -# CONFIG_32BIT is not set +CONFIG_29BIT=y +# CONFIG_PMB is not set CONFIG_VSYSCALL=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_ENABLE=y @@ -153,6 +179,7 @@ CONFIG_HUGETLB_PAGE_SIZE_64K=y # CONFIG_HUGETLB_PAGE_SIZE_1MB is not set # CONFIG_HUGETLB_PAGE_SIZE_4MB is not set # CONFIG_HUGETLB_PAGE_SIZE_64MB is not set +# CONFIG_HUGETLB_PAGE_SIZE_512MB is not set CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y # CONFIG_DISCONTIGMEM_MANUAL is not set @@ -190,6 +217,7 @@ CONFIG_CPU_HAS_FPU=y # Board support # # CONFIG_SH_7780_SOLUTION_ENGINE is not set +# CONFIG_SH_SDK7780 is not set CONFIG_SH_HIGHLANDER=y # CONFIG_SH_R7780RP is not set CONFIG_SH_R7780MP=y @@ -234,12 +262,13 @@ CONFIG_HZ_250=y # CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 +# CONFIG_SCHED_HRTICK is not set CONFIG_KEXEC=y # CONFIG_CRASH_DUMP is not set # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set CONFIG_PREEMPT=y -CONFIG_PREEMPT_BKL=y +CONFIG_RCU_TRACE=y CONFIG_GUSA=y # @@ -284,6 +313,7 @@ CONFIG_XFRM=y # CONFIG_XFRM_USER is not set # CONFIG_XFRM_SUB_POLICY is not set # CONFIG_XFRM_MIGRATE is not set +# CONFIG_XFRM_STATISTICS is not set # CONFIG_NET_KEY is not set CONFIG_INET=y # CONFIG_IP_MULTICAST is not set @@ -344,6 +374,7 @@ CONFIG_LLC=m # # CONFIG_NET_PKTGEN is not set # CONFIG_HAMRADIO is not set +# CONFIG_CAN is not set # CONFIG_IRDA is not set # CONFIG_BT is not set # CONFIG_AF_RXRPC is not set @@ -386,7 +417,7 @@ CONFIG_BLK_DEV=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=4096 -CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_BLK_DEV_XIP is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set CONFIG_MISC_DEVICES=y @@ -394,6 +425,8 @@ CONFIG_MISC_DEVICES=y CONFIG_EEPROM_93CX6=y # CONFIG_SGI_IOC4 is not set # CONFIG_TIFM_CORE is not set +# CONFIG_ENCLOSURE_SERVICES is not set +CONFIG_HAVE_IDE=y # CONFIG_IDE is not set # @@ -453,6 +486,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -506,6 +540,7 @@ CONFIG_SATA_SIL=y # CONFIG_PATA_MPIIX is not set # CONFIG_PATA_OLDPIIX is not set # CONFIG_PATA_NETCELL is not set +# CONFIG_PATA_NINJA32 is not set # CONFIG_PATA_NS87410 is not set # CONFIG_PATA_NS87415 is not set # CONFIG_PATA_OPTI is not set @@ -538,7 +573,6 @@ CONFIG_NETDEVICES=y # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # CONFIG_VETH is not set -# CONFIG_IP1000 is not set # CONFIG_ARCNET is not set # CONFIG_PHYLIB is not set CONFIG_NET_ETHERNET=y @@ -551,7 +585,6 @@ CONFIG_AX88796_93CX6=y # CONFIG_CASSINI is not set # CONFIG_NET_VENDOR_3COM is not set # CONFIG_SMC91X is not set -# CONFIG_SMC911X is not set # CONFIG_NET_TULIP is not set # CONFIG_HP100 is not set # CONFIG_IBM_NEW_EMAC_ZMII is not set @@ -576,6 +609,7 @@ CONFIG_8139TOO=m # CONFIG_8139TOO_TUNE_TWISTER is not set CONFIG_8139TOO_8129=y # CONFIG_8139_OLD_RX_RESET is not set +# CONFIG_R6040 is not set # CONFIG_SIS900 is not set # CONFIG_EPIC100 is not set # CONFIG_SUNDANCE is not set @@ -591,6 +625,9 @@ CONFIG_E1000=m # CONFIG_E1000_NAPI is not set # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set # CONFIG_E1000E is not set +# CONFIG_E1000E_ENABLED is not set +# CONFIG_IP1000 is not set +# CONFIG_IGB is not set # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set @@ -616,6 +653,7 @@ CONFIG_NETDEV_10000=y # CONFIG_NIU is not set # CONFIG_MLX4_CORE is not set # CONFIG_TEHUTI is not set +# CONFIG_BNX2X is not set # CONFIG_TR is not set # @@ -629,7 +667,6 @@ CONFIG_NETDEV_10000=y # CONFIG_PPP is not set # CONFIG_SLIP is not set # CONFIG_NET_FC is not set -# CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set @@ -686,6 +723,7 @@ CONFIG_SERIO_LIBPS2=y # # CONFIG_VT is not set # CONFIG_SERIAL_NONSTANDARD is not set +# CONFIG_NOZOMI is not set # # Serial drivers @@ -722,6 +760,7 @@ CONFIG_DEVPORT=y # CONFIG_POWER_SUPPLY is not set CONFIG_HWMON=y # CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_I5K_AMB is not set # CONFIG_SENSORS_F71805F is not set # CONFIG_SENSORS_F71882FG is not set # CONFIG_SENSORS_IT87 is not set @@ -736,6 +775,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_W83627HF is not set # CONFIG_SENSORS_W83627EHF is not set # CONFIG_HWMON_DEBUG_CHIP is not set +CONFIG_THERMAL=y # CONFIG_WATCHDOG is not set # @@ -800,12 +840,9 @@ CONFIG_USB_ARCH_HAS_EHCI=y # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' # - -# -# USB Gadget Support -# # CONFIG_USB_GADGET is not set # CONFIG_MMC is not set +# CONFIG_MEMSTICK is not set # CONFIG_NEW_LEDS is not set # CONFIG_INFINIBAND is not set CONFIG_RTC_LIB=y @@ -830,9 +867,10 @@ CONFIG_RTC_INTF_DEV=y # # Platform RTC drivers # +# CONFIG_RTC_DRV_DS1511 is not set # CONFIG_RTC_DRV_DS1553 is not set -# CONFIG_RTC_DRV_STK17TA8 is not set # CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_STK17TA8 is not set # CONFIG_RTC_DRV_M48T86 is not set # CONFIG_RTC_DRV_M48T59 is not set # CONFIG_RTC_DRV_V3020 is not set @@ -867,12 +905,10 @@ CONFIG_FS_POSIX_ACL=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set -CONFIG_MINIX_FS=y -# CONFIG_ROMFS_FS is not set +CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set CONFIG_FUSE_FS=m @@ -920,8 +956,10 @@ CONFIG_CONFIGFS_FS=m # CONFIG_EFS_FS is not set # CONFIG_CRAMFS is not set # CONFIG_VXFS_FS is not set +CONFIG_MINIX_FS=y # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set +# CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set CONFIG_NETWORK_FILESYSTEMS=y @@ -997,10 +1035,6 @@ CONFIG_NLS_ISO8859_1=y # CONFIG_NLS_KOI8_U is not set # CONFIG_NLS_UTF8 is not set # CONFIG_DLM is not set -CONFIG_INSTRUMENTATION=y -CONFIG_PROFILING=y -CONFIG_OPROFILE=m -# CONFIG_MARKERS is not set # # Kernel hacking @@ -1035,9 +1069,9 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_FRAME_POINTER is not set -CONFIG_FORCED_INLINING=y # CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_BACKTRACE_SELF_TEST is not set # CONFIG_FAULT_INJECTION is not set # CONFIG_SAMPLES is not set CONFIG_SH_STANDARD_BIOS=y @@ -1059,6 +1093,7 @@ CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_CRYPTO=y CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_BLKCIPHER=y +# CONFIG_CRYPTO_SEQIV is not set CONFIG_CRYPTO_HASH=y CONFIG_CRYPTO_MANAGER=y CONFIG_CRYPTO_HMAC=y @@ -1077,6 +1112,9 @@ CONFIG_CRYPTO_CBC=y CONFIG_CRYPTO_PCBC=m # CONFIG_CRYPTO_LRW is not set # CONFIG_CRYPTO_XTS is not set +# CONFIG_CRYPTO_CTR is not set +# CONFIG_CRYPTO_GCM is not set +# CONFIG_CRYPTO_CCM is not set # CONFIG_CRYPTO_CRYPTD is not set CONFIG_CRYPTO_DES=y # CONFIG_CRYPTO_FCRYPT is not set @@ -1091,13 +1129,16 @@ CONFIG_CRYPTO_DES=y # CONFIG_CRYPTO_KHAZAD is not set # CONFIG_CRYPTO_ANUBIS is not set # CONFIG_CRYPTO_SEED is not set +# CONFIG_CRYPTO_SALSA20 is not set # CONFIG_CRYPTO_DEFLATE is not set # CONFIG_CRYPTO_MICHAEL_MIC is not set # CONFIG_CRYPTO_CRC32C is not set # CONFIG_CRYPTO_CAMELLIA is not set # CONFIG_CRYPTO_TEST is not set # CONFIG_CRYPTO_AUTHENC is not set +# CONFIG_CRYPTO_LZO is not set CONFIG_CRYPTO_HW=y +# CONFIG_CRYPTO_DEV_HIFN_795X is not set # # Library routines -- GitLab From 2af8b3b642ea2a9442890797ad5f92d2eaacb5b5 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 6 Mar 2008 16:06:38 +0900 Subject: [PATCH 565/923] sh: Flag PMB support as EXPERIMENTAL. There's still work that needs to be done here, and this should not be enabled by default on existing boards. Signed-off-by: Paul Mundt --- arch/sh/mm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index f549b8cd250..5fd218430b1 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -59,7 +59,7 @@ config 32BIT config PMB bool "Support 32-bit physical addressing through PMB" - depends on MMU && (CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785) + depends on MMU && EXPERIMENTAL && (CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785) select 32BIT default y help -- GitLab From e7d7deca60c01d844a4d8e5644f4aecaf0e3bee4 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 6 Mar 2008 16:08:00 +0900 Subject: [PATCH 566/923] sh: Fix up SH7710 VoIP-GW build. The only board-specific bits that existed here were for setting up the IRQs, which are now handled by the SH7710 CPU support code instead. As there's nothing else to do for setup, kill off the board support code and have the defconfig use the generic machvec instead. Signed-off-by: Paul Mundt --- arch/sh/Kconfig | 7 - arch/sh/Makefile | 1 - arch/sh/boards/renesas/sh7710voipgw/Makefile | 1 - arch/sh/boards/renesas/sh7710voipgw/setup.c | 94 --- arch/sh/configs/sh7710voipgw_defconfig | 595 ++++++++----------- arch/sh/tools/mach-types | 1 - 6 files changed, 250 insertions(+), 449 deletions(-) delete mode 100644 arch/sh/boards/renesas/sh7710voipgw/Makefile delete mode 100644 arch/sh/boards/renesas/sh7710voipgw/setup.c diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 783cfbbf87c..95b7534e9e3 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -456,13 +456,6 @@ config SH_SECUREEDGE5410 This includes both the OEM SecureEdge products as well as the SME product line. -config SH_7710VOIPGW - bool "SH7710-VOIP-GW" - depends on CPU_SUBTYPE_SH7710 - help - Select this option to build a kernel for the SH7710 based - VOIP GW. - config SH_RTS7751R2D bool "RTS7751R2D" depends on CPU_SUBTYPE_SH7751R diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 81381e5773c..c510c225144 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -118,7 +118,6 @@ machdir-$(CONFIG_SH_EDOSK7705) += renesas/edosk7705 machdir-$(CONFIG_SH_HIGHLANDER) += renesas/r7780rp machdir-$(CONFIG_SH_MIGOR) += renesas/migor machdir-$(CONFIG_SH_SDK7780) += renesas/sdk7780 -machdir-$(CONFIG_SH_7710VOIPGW) += renesas/sh7710voipgw machdir-$(CONFIG_SH_X3PROTO) += renesas/x3proto machdir-$(CONFIG_SH_SH4202_MICRODEV) += superh/microdev machdir-$(CONFIG_SH_LANDISK) += landisk diff --git a/arch/sh/boards/renesas/sh7710voipgw/Makefile b/arch/sh/boards/renesas/sh7710voipgw/Makefile deleted file mode 100644 index 77037567633..00000000000 --- a/arch/sh/boards/renesas/sh7710voipgw/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-y := setup.o diff --git a/arch/sh/boards/renesas/sh7710voipgw/setup.c b/arch/sh/boards/renesas/sh7710voipgw/setup.c deleted file mode 100644 index 0d56fd83bcb..00000000000 --- a/arch/sh/boards/renesas/sh7710voipgw/setup.c +++ /dev/null @@ -1,94 +0,0 @@ -/* - * Renesas Technology SH7710 VoIP Gateway - * - * Copyright (C) 2006 Ranjit Deshpande - * Kenati Technologies Inc. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - */ -#include -#include -#include -#include - -static struct ipr_data sh7710voipgw_ipr_map[] = { - { TIMER2_IRQ, TIMER2_IPR_ADDR, TIMER2_IPR_POS, TIMER2_PRIORITY }, - { WDT_IRQ, WDT_IPR_ADDR, WDT_IPR_POS, WDT_PRIORITY }, - - /* SCIF0 */ - { SCIF0_ERI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY }, - { SCIF0_RXI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY }, - { SCIF0_BRI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY }, - { SCIF0_TXI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY }, - - /* DMAC-1 */ - { DMTE0_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY }, - { DMTE1_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY }, - { DMTE2_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY }, - { DMTE3_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY }, - - /* DMAC-2 */ - { DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY }, - { DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY }, - - /* IPSEC */ - { IPSEC_IRQ, IPSEC_IPR_ADDR, IPSEC_IPR_POS, IPSEC_PRIORITY }, - - /* EDMAC */ - { EDMAC0_IRQ, EDMAC0_IPR_ADDR, EDMAC0_IPR_POS, EDMAC0_PRIORITY }, - { EDMAC1_IRQ, EDMAC1_IPR_ADDR, EDMAC1_IPR_POS, EDMAC1_PRIORITY }, - { EDMAC2_IRQ, EDMAC2_IPR_ADDR, EDMAC2_IPR_POS, EDMAC2_PRIORITY }, - - /* SIOF0 */ - { SIOF0_ERI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY }, - { SIOF0_TXI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY }, - { SIOF0_RXI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY }, - { SIOF0_CCI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY }, - - /* SIOF1 */ - { SIOF1_ERI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY }, - { SIOF1_TXI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY }, - { SIOF1_RXI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY }, - { SIOF1_CCI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY }, - - /* SLIC IRQ's */ - { IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, IRQ1_PRIORITY }, - { IRQ2_IRQ, IRQ2_IPR_ADDR, IRQ2_IPR_POS, IRQ2_PRIORITY }, -}; - -/* - * Initialize IRQ setting - */ -static void __init sh7710voipgw_init_irq(void) -{ - /* Disable all interrupts in IPR registers */ - ctrl_outw(0x0, INTC_IPRA); - ctrl_outw(0x0, INTC_IPRB); - ctrl_outw(0x0, INTC_IPRC); - ctrl_outw(0x0, INTC_IPRD); - ctrl_outw(0x0, INTC_IPRE); - ctrl_outw(0x0, INTC_IPRF); - ctrl_outw(0x0, INTC_IPRG); - ctrl_outw(0x0, INTC_IPRH); - ctrl_outw(0x0, INTC_IPRI); - - /* Ack all interrupt sources in the IRR0 register */ - ctrl_outb(0x3f, INTC_IRR0); - - /* Use IRQ0 - IRQ3 as active low interrupt lines i.e. disable - * IRL mode. - */ - ctrl_outw(0x2aa, INTC_ICR1); - - make_ipr_irq(sh7710voipgw_ipr_map, ARRAY_SIZE(sh7710voipgw_ipr_map)); -} - -/* - * The Machine Vector - */ -static struct sh_machine_vector mv_sh7710voipgw __initmv = { - .mv_name = "SH7710 VoIP Gateway", - .mv_nr_irqs = 104, - .mv_init_irq = sh7710voipgw_init_irq, -}; diff --git a/arch/sh/configs/sh7710voipgw_defconfig b/arch/sh/configs/sh7710voipgw_defconfig index 9380c321169..37e49a58920 100644 --- a/arch/sh/configs/sh7710voipgw_defconfig +++ b/arch/sh/configs/sh7710voipgw_defconfig @@ -1,40 +1,55 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.18 -# Tue Oct 3 12:48:56 2006 +# Linux kernel version: 2.6.25-rc4 +# Thu Mar 6 16:02:29 2008 # CONFIG_SUPERH=y +CONFIG_SUPERH32=y CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_BUG=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_TIME=y +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_ARCH_NO_VIRT_TO_BUS=y +CONFIG_ARCH_SUPPORTS_AOUT=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # -# Code maturity level options +# General setup # CONFIG_EXPERIMENTAL=y CONFIG_BROKEN_ON_SMP=y CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y # CONFIG_SWAP is not set CONFIG_SYSVIPC=y -# CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_UTS_NS is not set # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CGROUPS is not set +CONFIG_GROUP_SCHED=y +CONFIG_FAIR_GROUP_SCHED=y +# CONFIG_RT_GROUP_SCHED is not set +CONFIG_USER_SCHED=y +# CONFIG_CGROUP_SCHED is not set +CONFIG_SYSFS_DEPRECATED=y +CONFIG_SYSFS_DEPRECATED_V2=y # CONFIG_RELAY is not set -CONFIG_INITRAMFS_SOURCE="" +# CONFIG_NAMESPACES is not set +# CONFIG_BLK_DEV_INITRD is not set CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y CONFIG_EMBEDDED=y @@ -46,33 +61,39 @@ CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y +CONFIG_COMPAT_BRK=y CONFIG_BASE_FULL=y # CONFIG_FUTEX is not set +CONFIG_ANON_INODES=y # CONFIG_EPOLL is not set +CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y +CONFIG_EVENTFD=y # CONFIG_SHMEM is not set -CONFIG_SLAB=y CONFIG_VM_EVENT_COUNTERS=y +CONFIG_SLAB=y +# CONFIG_SLUB is not set +# CONFIG_SLOB is not set +# CONFIG_PROFILING is not set +# CONFIG_MARKERS is not set +CONFIG_HAVE_OPROFILE=y +# CONFIG_HAVE_KPROBES is not set +# CONFIG_HAVE_KRETPROBES is not set +CONFIG_PROC_PAGE_MONITOR=y +CONFIG_SLABINFO=y CONFIG_TINY_SHMEM=y CONFIG_BASE_SMALL=0 -# CONFIG_SLOB is not set - -# -# Loadable module support -# CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set # CONFIG_KMOD is not set - -# -# Block layer -# CONFIG_BLOCK=y # CONFIG_LBD is not set # CONFIG_BLK_DEV_IO_TRACE is not set # CONFIG_LSF is not set +# CONFIG_BLK_DEV_BSG is not set # # IO Schedulers @@ -86,59 +107,26 @@ CONFIG_DEFAULT_DEADLINE=y # CONFIG_DEFAULT_CFQ is not set # CONFIG_DEFAULT_NOOP is not set CONFIG_DEFAULT_IOSCHED="deadline" +CONFIG_CLASSIC_RCU=y +# CONFIG_PREEMPT_RCU is not set # # System type # -# CONFIG_SH_SOLUTION_ENGINE is not set -# CONFIG_SH_7751_SOLUTION_ENGINE is not set -# CONFIG_SH_7300_SOLUTION_ENGINE is not set -# CONFIG_SH_7343_SOLUTION_ENGINE is not set -# CONFIG_SH_73180_SOLUTION_ENGINE is not set -# CONFIG_SH_7751_SYSTEMH is not set -# CONFIG_SH_HP6XX is not set -# CONFIG_SH_EC3104 is not set -# CONFIG_SH_SATURN is not set -# CONFIG_SH_DREAMCAST is not set -# CONFIG_SH_BIGSUR is not set -# CONFIG_SH_MPC1211 is not set -# CONFIG_SH_SH03 is not set -# CONFIG_SH_SECUREEDGE5410 is not set -# CONFIG_SH_HS7751RVOIP is not set -CONFIG_SH_7710VOIPGW=y -# CONFIG_SH_RTS7751R2D is not set -# CONFIG_SH_R7780RP is not set -# CONFIG_SH_EDOSK7705 is not set -# CONFIG_SH_SH4202_MICRODEV is not set -# CONFIG_SH_LANDISK is not set -# CONFIG_SH_TITAN is not set -# CONFIG_SH_SHMIN is not set -# CONFIG_SH_UNKNOWN is not set - -# -# Processor selection -# CONFIG_CPU_SH3=y - -# -# SH-2 Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7604 is not set - -# -# SH-3 Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7619 is not set +# CONFIG_CPU_SUBTYPE_SH7203 is not set +# CONFIG_CPU_SUBTYPE_SH7206 is not set +# CONFIG_CPU_SUBTYPE_SH7263 is not set # CONFIG_CPU_SUBTYPE_SH7705 is not set # CONFIG_CPU_SUBTYPE_SH7706 is not set # CONFIG_CPU_SUBTYPE_SH7707 is not set # CONFIG_CPU_SUBTYPE_SH7708 is not set # CONFIG_CPU_SUBTYPE_SH7709 is not set CONFIG_CPU_SUBTYPE_SH7710=y - -# -# SH-4 Processor Support -# +# CONFIG_CPU_SUBTYPE_SH7712 is not set +# CONFIG_CPU_SUBTYPE_SH7720 is not set +# CONFIG_CPU_SUBTYPE_SH7721 is not set # CONFIG_CPU_SUBTYPE_SH7750 is not set # CONFIG_CPU_SUBTYPE_SH7091 is not set # CONFIG_CPU_SUBTYPE_SH7750R is not set @@ -147,65 +135,84 @@ CONFIG_CPU_SUBTYPE_SH7710=y # CONFIG_CPU_SUBTYPE_SH7751R is not set # CONFIG_CPU_SUBTYPE_SH7760 is not set # CONFIG_CPU_SUBTYPE_SH4_202 is not set - -# -# ST40 Processor Support -# -# CONFIG_CPU_SUBTYPE_ST40STB1 is not set -# CONFIG_CPU_SUBTYPE_ST40GX1 is not set - -# -# SH-4A Processor Support -# +# CONFIG_CPU_SUBTYPE_SH7763 is not set # CONFIG_CPU_SUBTYPE_SH7770 is not set # CONFIG_CPU_SUBTYPE_SH7780 is not set - -# -# SH4AL-DSP Processor Support -# -# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7785 is not set +# CONFIG_CPU_SUBTYPE_SHX3 is not set # CONFIG_CPU_SUBTYPE_SH7343 is not set +# CONFIG_CPU_SUBTYPE_SH7722 is not set +# CONFIG_CPU_SUBTYPE_SH7366 is not set +# CONFIG_CPU_SUBTYPE_SH5_101 is not set +# CONFIG_CPU_SUBTYPE_SH5_103 is not set # # Memory management options # +CONFIG_QUICKLIST=y CONFIG_MMU=y CONFIG_PAGE_OFFSET=0x80000000 CONFIG_MEMORY_START=0x0c000000 CONFIG_MEMORY_SIZE=0x00800000 +CONFIG_29BIT=y CONFIG_VSYSCALL=y +CONFIG_ARCH_FLATMEM_ENABLE=y +CONFIG_ARCH_SPARSEMEM_ENABLE=y +CONFIG_ARCH_SPARSEMEM_DEFAULT=y +CONFIG_MAX_ACTIVE_REGIONS=1 +CONFIG_ARCH_POPULATES_NODE_MAP=y +CONFIG_ARCH_SELECT_MEMORY_MODEL=y +CONFIG_PAGE_SIZE_4KB=y +# CONFIG_PAGE_SIZE_8KB is not set +# CONFIG_PAGE_SIZE_64KB is not set CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y # CONFIG_DISCONTIGMEM_MANUAL is not set # CONFIG_SPARSEMEM_MANUAL is not set CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y -# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPARSEMEM_STATIC=y +# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=0 +CONFIG_NR_QUICK=2 # # Cache configuration # # CONFIG_SH_DIRECT_MAPPED is not set -# CONFIG_SH_WRITETHROUGH is not set -# CONFIG_SH_OCRAM is not set +CONFIG_CACHE_WRITEBACK=y +# CONFIG_CACHE_WRITETHROUGH is not set +# CONFIG_CACHE_OFF is not set # # Processor features # CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_CPU_BIG_ENDIAN is not set # CONFIG_SH_FPU_EMU is not set CONFIG_SH_DSP=y # CONFIG_SH_ADC is not set CONFIG_CPU_HAS_INTEVT=y CONFIG_CPU_HAS_SR_RB=y +CONFIG_CPU_HAS_DSP=y # -# Timer support +# Board support +# +# CONFIG_SH_SOLUTION_ENGINE is not set + +# +# Timer and clock configuration # CONFIG_SH_TMU=y +CONFIG_SH_TIMER_IRQ=16 CONFIG_SH_PCLK_FREQ=32768000 +# CONFIG_TICK_ONESHOT is not set +# CONFIG_NO_HZ is not set +# CONFIG_HIGH_RES_TIMERS is not set +CONFIG_GENERIC_CLOCKEVENTS_BUILD=y # # CPU Frequency scaling @@ -220,55 +227,50 @@ CONFIG_SH_PCLK_FREQ=32768000 # # Companion Chips # -# CONFIG_HD6446X_SERIES is not set + +# +# Additional SuperH Device Drivers +# +# CONFIG_HEARTBEAT is not set +# CONFIG_PUSH_SWITCH is not set # # Kernel features # # CONFIG_HZ_100 is not set CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 +# CONFIG_SCHED_HRTICK is not set # CONFIG_KEXEC is not set -# CONFIG_SMP is not set +# CONFIG_CRASH_DUMP is not set CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set +CONFIG_RCU_TRACE=y +CONFIG_GUSA=y +# CONFIG_GUSA_RB is not set # # Boot options # CONFIG_ZERO_PAGE_OFFSET=0x00001000 CONFIG_BOOT_LINK_OFFSET=0x00800000 -# CONFIG_UBC_WAKEUP is not set # CONFIG_CMDLINE_BOOL is not set # # Bus options # -# CONFIG_PCI is not set - -# -# PCCARD (PCMCIA/CardBus) support -# +# CONFIG_ARCH_SUPPORTS_MSI is not set # CONFIG_PCCARD is not set -# -# PCI Hotplug Support -# - # # Executable file formats # CONFIG_BINFMT_ELF=y -# CONFIG_BINFMT_FLAT is not set # CONFIG_BINFMT_MISC is not set -# -# Power management options (EXPERIMENTAL) -# -# CONFIG_PM is not set - # # Networking # @@ -277,13 +279,14 @@ CONFIG_NET=y # # Networking options # -# CONFIG_NETDEBUG is not set CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set CONFIG_UNIX=y CONFIG_XFRM=y # CONFIG_XFRM_USER is not set # CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set +# CONFIG_XFRM_STATISTICS is not set # CONFIG_NET_KEY is not set CONFIG_INET=y # CONFIG_IP_MULTICAST is not set @@ -301,14 +304,13 @@ CONFIG_SYN_COOKIES=y # CONFIG_INET_TUNNEL is not set CONFIG_INET_XFRM_MODE_TRANSPORT=y CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y +# CONFIG_INET_LRO is not set # CONFIG_INET_DIAG is not set # CONFIG_TCP_CONG_ADVANCED is not set CONFIG_TCP_CONG_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" - -# -# IP: Virtual Server Configuration -# +# CONFIG_TCP_MD5SIG is not set # CONFIG_IP_VS is not set # CONFIG_IPV6 is not set # CONFIG_INET6_XFRM_TUNNEL is not set @@ -316,44 +318,24 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_NETWORK_SECMARK is not set CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set +CONFIG_NETFILTER_ADVANCED=y # # Core Netfilter Configuration # -# CONFIG_NETFILTER_NETLINK is not set +# CONFIG_NETFILTER_NETLINK_QUEUE is not set +# CONFIG_NETFILTER_NETLINK_LOG is not set +# CONFIG_NF_CONNTRACK is not set # CONFIG_NETFILTER_XTABLES is not set # # IP: Netfilter Configuration # -CONFIG_IP_NF_CONNTRACK=y -# CONFIG_IP_NF_CT_ACCT is not set -# CONFIG_IP_NF_CONNTRACK_MARK is not set -# CONFIG_IP_NF_CONNTRACK_EVENTS is not set -# CONFIG_IP_NF_CT_PROTO_SCTP is not set -CONFIG_IP_NF_FTP=m -# CONFIG_IP_NF_IRC is not set -# CONFIG_IP_NF_NETBIOS_NS is not set -# CONFIG_IP_NF_TFTP is not set -# CONFIG_IP_NF_AMANDA is not set -CONFIG_IP_NF_PPTP=m -# CONFIG_IP_NF_H323 is not set -# CONFIG_IP_NF_SIP is not set # CONFIG_IP_NF_QUEUE is not set - -# -# DCCP Configuration (EXPERIMENTAL) -# +# CONFIG_IP_NF_IPTABLES is not set +# CONFIG_IP_NF_ARPTABLES is not set # CONFIG_IP_DCCP is not set - -# -# SCTP Configuration (EXPERIMENTAL) -# # CONFIG_IP_SCTP is not set - -# -# TIPC Configuration (EXPERIMENTAL) -# # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set @@ -366,14 +348,7 @@ CONFIG_IP_NF_PPTP=m # CONFIG_LAPB is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set - -# -# QoS and/or fair queueing -# CONFIG_NET_SCHED=y -CONFIG_NET_SCH_CLK_JIFFIES=y -# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set -# CONFIG_NET_SCH_CLK_CPU is not set # # Queueing/Scheduling @@ -382,6 +357,7 @@ CONFIG_NET_SCH_CBQ=y # CONFIG_NET_SCH_HTB is not set # CONFIG_NET_SCH_HFSC is not set # CONFIG_NET_SCH_PRIO is not set +# CONFIG_NET_SCH_RR is not set # CONFIG_NET_SCH_RED is not set # CONFIG_NET_SCH_SFQ is not set # CONFIG_NET_SCH_TEQL is not set @@ -389,7 +365,6 @@ CONFIG_NET_SCH_CBQ=y # CONFIG_NET_SCH_GRED is not set # CONFIG_NET_SCH_DSMARK is not set # CONFIG_NET_SCH_NETEM is not set -CONFIG_NET_SCH_INGRESS=y # # Classification @@ -405,20 +380,31 @@ CONFIG_NET_CLS_U32=y # CONFIG_CLS_U32_MARK is not set # CONFIG_NET_CLS_RSVP is not set # CONFIG_NET_CLS_RSVP6 is not set +# CONFIG_NET_CLS_FLOW is not set # CONFIG_NET_EMATCH is not set # CONFIG_NET_CLS_ACT is not set -CONFIG_NET_CLS_POLICE=y # CONFIG_NET_CLS_IND is not set -CONFIG_NET_ESTIMATOR=y +CONFIG_NET_SCH_FIFO=y # # Network testing # # CONFIG_NET_PKTGEN is not set # CONFIG_HAMRADIO is not set +# CONFIG_CAN is not set # CONFIG_IRDA is not set # CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set +# CONFIG_MAC80211 is not set # CONFIG_IEEE80211 is not set +# CONFIG_RFKILL is not set +# CONFIG_NET_9P is not set # # Device Drivers @@ -427,19 +413,12 @@ CONFIG_NET_ESTIMATOR=y # # Generic Driver Options # +CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y # CONFIG_SYS_HYPERVISOR is not set - -# -# Connector - unified userspace <-> kernelspace linker -# # CONFIG_CONNECTOR is not set - -# -# Memory Technology Devices (MTD) -# CONFIG_MTD=y # CONFIG_MTD_DEBUG is not set # CONFIG_MTD_CONCAT is not set @@ -451,12 +430,14 @@ CONFIG_MTD_PARTITIONS=y # User Modules And Translation Layers # CONFIG_MTD_CHAR=y +CONFIG_MTD_BLKDEVS=y CONFIG_MTD_BLOCK=y # CONFIG_FTL is not set # CONFIG_NFTL is not set # CONFIG_INFTL is not set # CONFIG_RFD_FTL is not set # CONFIG_SSFDC is not set +# CONFIG_MTD_OOPS is not set # # RAM/ROM/Flash chip drivers @@ -482,7 +463,6 @@ CONFIG_MTD_CFI_UTIL=y CONFIG_MTD_RAM=y # CONFIG_MTD_ROM is not set # CONFIG_MTD_ABSENT is not set -# CONFIG_MTD_OBSOLETE_CHIPS is not set # # Mapping drivers for chip access @@ -505,40 +485,25 @@ CONFIG_MTD_RAM=y # CONFIG_MTD_DOC2000 is not set # CONFIG_MTD_DOC2001 is not set # CONFIG_MTD_DOC2001PLUS is not set - -# -# NAND Flash Device Drivers -# # CONFIG_MTD_NAND is not set - -# -# OneNAND Flash Device Drivers -# # CONFIG_MTD_ONENAND is not set # -# Parallel port support +# UBI - Unsorted block images # +# CONFIG_MTD_UBI is not set # CONFIG_PARPORT is not set - -# -# Plug and Play support -# - -# -# Block devices -# +CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_COW_COMMON is not set # CONFIG_BLK_DEV_LOOP is not set # CONFIG_BLK_DEV_NBD is not set # CONFIG_BLK_DEV_RAM is not set -# CONFIG_BLK_DEV_INITRD is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set - -# -# ATA/ATAPI/MFM/RLL support -# +CONFIG_MISC_DEVICES=y +# CONFIG_EEPROM_93CX6 is not set +# CONFIG_ENCLOSURE_SERVICES is not set +CONFIG_HAVE_IDE=y # CONFIG_IDE is not set # @@ -546,104 +511,59 @@ CONFIG_MTD_RAM=y # # CONFIG_RAID_ATTRS is not set # CONFIG_SCSI is not set +# CONFIG_SCSI_DMA is not set # CONFIG_SCSI_NETLINK is not set - -# -# Serial ATA (prod) and Parallel ATA (experimental) drivers -# # CONFIG_ATA is not set - -# -# Multi-device support (RAID and LVM) -# # CONFIG_MD is not set - -# -# Fusion MPT device support -# -# CONFIG_FUSION is not set - -# -# IEEE 1394 (FireWire) support -# - -# -# I2O device support -# - -# -# Network device support -# CONFIG_NETDEVICES=y +# CONFIG_NETDEVICES_MULTIQUEUE is not set # CONFIG_DUMMY is not set # CONFIG_BONDING is not set +# CONFIG_MACVLAN is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set - -# -# PHY device support -# +# CONFIG_VETH is not set # CONFIG_PHYLIB is not set - -# -# Ethernet (10 or 100Mbit) -# CONFIG_NET_ETHERNET=y # CONFIG_MII is not set +# CONFIG_AX88796 is not set # CONFIG_STNIC is not set # CONFIG_SMC91X is not set +# CONFIG_IBM_NEW_EMAC_ZMII is not set +# CONFIG_IBM_NEW_EMAC_RGMII is not set +# CONFIG_IBM_NEW_EMAC_TAH is not set +# CONFIG_IBM_NEW_EMAC_EMAC4 is not set +# CONFIG_B44 is not set +CONFIG_NETDEV_1000=y +# CONFIG_E1000E_ENABLED is not set +CONFIG_NETDEV_10000=y # -# Ethernet (1000 Mbit) -# - -# -# Ethernet (10000 Mbit) -# - -# -# Token Ring devices -# - -# -# Wireless LAN (non-hamradio) -# -# CONFIG_NET_RADIO is not set - -# -# Wan interfaces +# Wireless LAN # +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set # CONFIG_WAN is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set -# CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set - -# -# ISDN subsystem -# # CONFIG_ISDN is not set - -# -# Telephony Support -# CONFIG_PHONE=y -# CONFIG_PHONE_IXJ is not set # # Input device support # CONFIG_INPUT=y # CONFIG_INPUT_FF_MEMLESS is not set +# CONFIG_INPUT_POLLDEV is not set # # Userland interfaces # # CONFIG_INPUT_MOUSEDEV is not set # CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set @@ -653,6 +573,7 @@ CONFIG_INPUT=y # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set @@ -684,35 +605,11 @@ CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_UNIX98_PTYS is not set CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 - -# -# IPMI -# # CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# -# CONFIG_WATCHDOG is not set CONFIG_HW_RANDOM=y -# CONFIG_GEN_RTC is not set -# CONFIG_DTLK is not set # CONFIG_R3964 is not set - -# -# Ftape, the floppy tape device driver -# # CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# # CONFIG_TCG_TPM is not set -# CONFIG_TELCLOCK is not set - -# -# I2C support -# # CONFIG_I2C is not set # @@ -720,119 +617,86 @@ CONFIG_HW_RANDOM=y # # CONFIG_SPI is not set # CONFIG_SPI_MASTER is not set +# CONFIG_W1 is not set +# CONFIG_POWER_SUPPLY is not set +# CONFIG_HWMON is not set +CONFIG_THERMAL=y +# CONFIG_WATCHDOG is not set # -# Dallas's 1-wire bus -# - -# -# Hardware Monitoring support +# Sonics Silicon Backplane # -# CONFIG_HWMON is not set -# CONFIG_HWMON_VID is not set +CONFIG_SSB_POSSIBLE=y +# CONFIG_SSB is not set # -# Misc devices +# Multifunction device drivers # +# CONFIG_MFD_SM501 is not set # # Multimedia devices # # CONFIG_VIDEO_DEV is not set -CONFIG_VIDEO_V4L2=y - -# -# Digital Video Broadcasting Devices -# -# CONFIG_DVB is not set +# CONFIG_DVB_CORE is not set +# CONFIG_DAB is not set # # Graphics support # -CONFIG_FIRMWARE_EDID=y +# CONFIG_VGASTATE is not set +# CONFIG_VIDEO_OUTPUT_CONTROL is not set # CONFIG_FB is not set # CONFIG_BACKLIGHT_LCD_SUPPORT is not set # -# Sound +# Display device support # -# CONFIG_SOUND is not set +# CONFIG_DISPLAY_SUPPORT is not set # -# USB support +# Sound # -# CONFIG_USB_ARCH_HAS_HCD is not set +# CONFIG_SOUND is not set +CONFIG_HID_SUPPORT=y +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set +# CONFIG_HIDRAW is not set +CONFIG_USB_SUPPORT=y +CONFIG_USB_ARCH_HAS_HCD=y # CONFIG_USB_ARCH_HAS_OHCI is not set # CONFIG_USB_ARCH_HAS_EHCI is not set +# CONFIG_USB is not set # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' # - -# -# USB Gadget Support -# # CONFIG_USB_GADGET is not set - -# -# MMC/SD Card support -# # CONFIG_MMC is not set - -# -# LED devices -# +# CONFIG_MEMSTICK is not set # CONFIG_NEW_LEDS is not set - -# -# LED drivers -# - -# -# LED Triggers -# - -# -# InfiniBand support -# - -# -# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) -# - -# -# Real Time Clock -# # CONFIG_RTC_CLASS is not set # -# DMA Engine support -# -# CONFIG_DMA_ENGINE is not set - -# -# DMA Clients -# - -# -# DMA Devices +# Userspace I/O # +# CONFIG_UIO is not set # # File systems # # CONFIG_EXT2_FS is not set # CONFIG_EXT3_FS is not set +# CONFIG_EXT4DEV_FS is not set # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_ROMFS_FS is not set +# CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set # CONFIG_QUOTA is not set -# CONFIG_DNOTIFY is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_FUSE_FS is not set @@ -861,7 +725,6 @@ CONFIG_TMPFS=y # CONFIG_TMPFS_POSIX_ACL is not set # CONFIG_HUGETLBFS is not set # CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set # @@ -874,26 +737,26 @@ CONFIG_RAMFS=y # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set -# CONFIG_JFFS_FS is not set CONFIG_JFFS2_FS=y CONFIG_JFFS2_FS_DEBUG=0 CONFIG_JFFS2_FS_WRITEBUFFER=y +# CONFIG_JFFS2_FS_WBUF_VERIFY is not set # CONFIG_JFFS2_SUMMARY is not set # CONFIG_JFFS2_FS_XATTR is not set # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set CONFIG_JFFS2_ZLIB=y +# CONFIG_JFFS2_LZO is not set CONFIG_JFFS2_RTIME=y # CONFIG_JFFS2_RUBIN is not set # CONFIG_CRAMFS is not set # CONFIG_VXFS_FS is not set +# CONFIG_MINIX_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set +# CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set - -# -# Network File Systems -# +CONFIG_NETWORK_FILESYSTEMS=y # CONFIG_NFS_FS is not set # CONFIG_NFSD is not set # CONFIG_SMB_FS is not set @@ -901,55 +764,97 @@ CONFIG_JFFS2_RTIME=y # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set -# CONFIG_9P_FS is not set # # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# # CONFIG_NLS is not set - -# -# Profiling support -# -# CONFIG_PROFILING is not set +# CONFIG_DLM is not set # # Kernel hacking # +CONFIG_TRACE_IRQFLAGS_SUPPORT=y # CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_WARN_DEPRECATED=y CONFIG_ENABLE_MUST_CHECK=y # CONFIG_MAGIC_SYSRQ is not set # CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_FS=y +# CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set -CONFIG_LOG_BUF_SHIFT=14 # CONFIG_DEBUG_BUGVERBOSE is not set -# CONFIG_DEBUG_FS is not set +# CONFIG_SAMPLES is not set # CONFIG_SH_STANDARD_BIOS is not set -# CONFIG_KGDB is not set +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_SH_KGDB is not set # # Security options # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set - -# -# Cryptographic options -# -# CONFIG_CRYPTO is not set +# CONFIG_SECURITY_FILE_CAPABILITIES is not set +CONFIG_CRYPTO=y +# CONFIG_CRYPTO_SEQIV is not set +# CONFIG_CRYPTO_MANAGER is not set +# CONFIG_CRYPTO_HMAC is not set +# CONFIG_CRYPTO_XCBC is not set +# CONFIG_CRYPTO_NULL is not set +# CONFIG_CRYPTO_MD4 is not set +# CONFIG_CRYPTO_MD5 is not set +# CONFIG_CRYPTO_SHA1 is not set +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set +# CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set +# CONFIG_CRYPTO_GF128MUL is not set +# CONFIG_CRYPTO_ECB is not set +# CONFIG_CRYPTO_CBC is not set +# CONFIG_CRYPTO_PCBC is not set +# CONFIG_CRYPTO_LRW is not set +# CONFIG_CRYPTO_XTS is not set +# CONFIG_CRYPTO_CTR is not set +# CONFIG_CRYPTO_GCM is not set +# CONFIG_CRYPTO_CCM is not set +# CONFIG_CRYPTO_CRYPTD is not set +# CONFIG_CRYPTO_DES is not set +# CONFIG_CRYPTO_FCRYPT is not set +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_TWOFISH is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_ARC4 is not set +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_ANUBIS is not set +# CONFIG_CRYPTO_SEED is not set +# CONFIG_CRYPTO_SALSA20 is not set +# CONFIG_CRYPTO_DEFLATE is not set +# CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_CAMELLIA is not set +# CONFIG_CRYPTO_TEST is not set +# CONFIG_CRYPTO_AUTHENC is not set +# CONFIG_CRYPTO_LZO is not set +CONFIG_CRYPTO_HW=y # # Library routines # +CONFIG_BITREVERSE=y # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set +# CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y +# CONFIG_CRC7 is not set # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y +CONFIG_HAS_DMA=y diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types index 67997af25c0..d63b93da952 100644 --- a/arch/sh/tools/mach-types +++ b/arch/sh/tools/mach-types @@ -38,7 +38,6 @@ R7780MP SH_R7780MP R7785RP SH_R7785RP TITAN SH_TITAN SHMIN SH_SHMIN -7710VOIPGW SH_7710VOIPGW LBOXRE2 SH_LBOX_RE2 X3PROTO SH_X3PROTO MAGICPANELR2 SH_MAGIC_PANEL_R2 -- GitLab From 7b9726a7a0d8c70ea44a5ed23726748de344f223 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 6 Mar 2008 17:23:15 +0900 Subject: [PATCH 567/923] sh: Fix up the sh64 build. Signed-off-by: Paul Mundt --- arch/sh/lib64/udelay.c | 21 +++++++-------------- include/asm-sh/delay.h | 5 ----- 2 files changed, 7 insertions(+), 19 deletions(-) diff --git a/arch/sh/lib64/udelay.c b/arch/sh/lib64/udelay.c index 23c7d17fb9f..d76bd801194 100644 --- a/arch/sh/lib64/udelay.c +++ b/arch/sh/lib64/udelay.c @@ -21,7 +21,7 @@ * a 1GHz box, that's about 2 seconds. */ -void __delay(int loops) +void __delay(unsigned long loops) { long long dummy; __asm__ __volatile__("gettr tr0, %1\n\t" @@ -33,24 +33,17 @@ void __delay(int loops) :"0"(loops)); } -void __udelay(unsigned long long usecs, unsigned long lpj) +inline void __const_udelay(unsigned long xloops) { - usecs *= (((unsigned long long) HZ << 32) / 1000000) * lpj; - __delay((long long) usecs >> 32); + __delay(xloops * (HZ * cpu_data[raw_smp_processor_id()].loops_per_jiffy)); } -void __ndelay(unsigned long long nsecs, unsigned long lpj) +void __udelay(unsigned long usecs) { - nsecs *= (((unsigned long long) HZ << 32) / 1000000000) * lpj; - __delay((long long) nsecs >> 32); + __const_udelay(usecs * 0x000010c6); /* 2**32 / 1000000 */ } -void udelay(unsigned long usecs) +void __ndelay(unsigned long nsecs) { - __udelay(usecs, cpu_data[raw_smp_processor_id()].loops_per_jiffy); -} - -void ndelay(unsigned long nsecs) -{ - __ndelay(nsecs, cpu_data[raw_smp_processor_id()].loops_per_jiffy); + __const_udelay(nsecs * 0x00000005); } diff --git a/include/asm-sh/delay.h b/include/asm-sh/delay.h index d5d46404100..4b16bf9b56b 100644 --- a/include/asm-sh/delay.h +++ b/include/asm-sh/delay.h @@ -15,7 +15,6 @@ extern void __ndelay(unsigned long nsecs); extern void __const_udelay(unsigned long xloops); extern void __delay(unsigned long loops); -#ifdef CONFIG_SUPERH32 #define udelay(n) (__builtin_constant_p(n) ? \ ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \ __udelay(n)) @@ -23,9 +22,5 @@ extern void __delay(unsigned long loops); #define ndelay(n) (__builtin_constant_p(n) ? \ ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ __ndelay(n)) -#else -extern void udelay(unsigned long usecs); -extern void ndelay(unsigned long nsecs); -#endif #endif /* __ASM_SH_DELAY_H */ -- GitLab From 6212f2c7f70c591efb0d9f3d50ad29112392fee2 Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Thu, 6 Mar 2008 18:56:19 +0800 Subject: [PATCH 568/923] [CRYPTO] xts: Use proper alignment The XTS blockmode uses a copy of the IV which is saved on the stack and may or may not be properly aligned. If it is not, it will break hardware cipher like the geode or padlock. This patch encrypts the IV in place so we don't have to worry about alignment. Signed-off-by: Sebastian Siewior Tested-by: Stefan Hellermann Signed-off-by: Herbert Xu --- crypto/xts.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/crypto/xts.c b/crypto/xts.c index 8eb08bfaf7c..d87b0f3102c 100644 --- a/crypto/xts.c +++ b/crypto/xts.c @@ -77,16 +77,16 @@ static int setkey(struct crypto_tfm *parent, const u8 *key, } struct sinfo { - be128 t; + be128 *t; struct crypto_tfm *tfm; void (*fn)(struct crypto_tfm *, u8 *, const u8 *); }; static inline void xts_round(struct sinfo *s, void *dst, const void *src) { - be128_xor(dst, &s->t, src); /* PP <- T xor P */ + be128_xor(dst, s->t, src); /* PP <- T xor P */ s->fn(s->tfm, dst, dst); /* CC <- E(Key1,PP) */ - be128_xor(dst, dst, &s->t); /* C <- T xor CC */ + be128_xor(dst, dst, s->t); /* C <- T xor CC */ } static int crypt(struct blkcipher_desc *d, @@ -101,7 +101,6 @@ static int crypt(struct blkcipher_desc *d, .tfm = crypto_cipher_tfm(ctx->child), .fn = fn }; - be128 *iv; u8 *wsrc; u8 *wdst; @@ -109,20 +108,20 @@ static int crypt(struct blkcipher_desc *d, if (!w->nbytes) return err; + s.t = (be128 *)w->iv; avail = w->nbytes; wsrc = w->src.virt.addr; wdst = w->dst.virt.addr; /* calculate first value of T */ - iv = (be128 *)w->iv; - tw(crypto_cipher_tfm(ctx->tweak), (void *)&s.t, w->iv); + tw(crypto_cipher_tfm(ctx->tweak), w->iv, w->iv); goto first; for (;;) { do { - gf128mul_x_ble(&s.t, &s.t); + gf128mul_x_ble(s.t, s.t); first: xts_round(&s, wdst, wsrc); -- GitLab From 5e69960865ab6033a129f9ee35264adb2a1cfc94 Mon Sep 17 00:00:00 2001 From: Andrew Paprocki Date: Sun, 10 Feb 2008 22:11:15 -0500 Subject: [PATCH 569/923] [WATCHDOG] it8712f_wdt support for 16-bit timeout values, WDIOC_GETSTATUS This patch adds support for 16-bit watchdog timeout values which are available in chip revisions >= 0x08. Values <= 65535 are seconds precision, otherwise minutes precision is used up to a maximum value of 3932100. Added implementation for WDIOC_GETSTATUS which checks the WDT status bit in the WDT control register. Signed-off-by: Andrew Paprocki Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/it8712f_wdt.c | 78 ++++++++++++++++++++++++++++------ 1 file changed, 64 insertions(+), 14 deletions(-) diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c index 1b6d7d1b715..1efcad3b6fc 100644 --- a/drivers/watchdog/it8712f_wdt.c +++ b/drivers/watchdog/it8712f_wdt.c @@ -7,7 +7,8 @@ * * drivers/char/watchdog/scx200_wdt.c * drivers/hwmon/it87.c - * IT8712F EC-LPC I/O Preliminary Specification 0.9.2.pdf + * IT8712F EC-LPC I/O Preliminary Specification 0.8.2 + * IT8712F EC-LPC I/O Preliminary Specification 0.9.3 * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as @@ -40,6 +41,7 @@ MODULE_DESCRIPTION("IT8712F Watchdog Driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); +static int max_units = 255; static int margin = 60; /* in seconds */ module_param(margin, int, 0); MODULE_PARM_DESC(margin, "Watchdog margin in seconds"); @@ -51,6 +53,7 @@ MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close"); static struct semaphore it8712f_wdt_sem; static unsigned expect_close; static spinlock_t io_lock; +static unsigned char revision; /* Dog Food address - We use the game port address */ static unsigned short address; @@ -108,6 +111,15 @@ superio_inw(int reg) return val; } +static void +superio_outw(int val, int reg) +{ + outb(reg++, REG); + outb((val >> 8) & 0xff, VAL); + outb(reg, REG); + outb(val & 0xff, VAL); +} + static inline void superio_select(int ldn) { @@ -143,15 +155,33 @@ static void it8712f_wdt_update_margin(void) { int config = WDT_OUT_KRST | WDT_OUT_PWROK; - - printk(KERN_INFO NAME ": timer margin %d seconds\n", margin); - - /* The timeout register only has 8bits wide */ - if (margin < 256) - config |= WDT_UNIT_SEC; /* else UNIT are MINUTES */ + int units = margin; + + /* Switch to minutes precision if the configured margin + * value does not fit within the register width. + */ + if (units <= max_units) { + config |= WDT_UNIT_SEC; /* else UNIT is MINUTES */ + printk(KERN_INFO NAME ": timer margin %d seconds\n", units); + } else { + units /= 60; + printk(KERN_INFO NAME ": timer margin %d minutes\n", units); + } superio_outb(config, WDT_CONFIG); - superio_outb((margin > 255) ? (margin / 60) : margin, WDT_TIMEOUT); + if (revision >= 0x08) + superio_outw(units, WDT_TIMEOUT); + else + superio_outb(units, WDT_TIMEOUT); +} + +static int +it8712f_wdt_get_status(void) +{ + if (superio_inb(WDT_CONTROL) & 0x01) + return WDIOF_CARDRESET; + else + return 0; } static void @@ -234,7 +264,7 @@ it8712f_wdt_ioctl(struct inode *inode, struct file *file, .firmware_version = 1, .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, }; - int new_margin; + int value; switch (cmd) { default: @@ -244,17 +274,27 @@ it8712f_wdt_ioctl(struct inode *inode, struct file *file, return -EFAULT; return 0; case WDIOC_GETSTATUS: + superio_enter(); + superio_select(LDN_GPIO); + + value = it8712f_wdt_get_status(); + + superio_exit(); + + return put_user(value, p); case WDIOC_GETBOOTSTATUS: return put_user(0, p); case WDIOC_KEEPALIVE: it8712f_wdt_ping(); return 0; case WDIOC_SETTIMEOUT: - if (get_user(new_margin, p)) + if (get_user(value, p)) return -EFAULT; - if (new_margin < 1) + if (value < 1) + return -EINVAL; + if (value > (max_units * 60)) return -EINVAL; - margin = new_margin; + margin = value; superio_enter(); superio_select(LDN_GPIO); @@ -262,6 +302,7 @@ it8712f_wdt_ioctl(struct inode *inode, struct file *file, superio_exit(); it8712f_wdt_ping(); + /* Fall through */ case WDIOC_GETTIMEOUT: if (put_user(margin, p)) return -EFAULT; @@ -336,9 +377,18 @@ it8712f_wdt_find(unsigned short *address) } err = 0; - printk(KERN_DEBUG NAME ": Found IT%04xF chip revision %d - " + revision = superio_inb(DEVREV) & 0x0f; + + /* Later revisions have 16-bit values per datasheet 0.9.1 */ + if (revision >= 0x08) + max_units = 65535; + + if (margin > (max_units * 60)) + margin = (max_units * 60); + + printk(KERN_INFO NAME ": Found IT%04xF chip revision %d - " "using DogFood address 0x%x\n", - chip_type, superio_inb(DEVREV) & 0x0f, *address); + chip_type, revision, *address); exit: superio_exit(); -- GitLab From 103018aca2e4ba0d0e230efa864231c59228f419 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 28 Feb 2008 09:38:44 -0800 Subject: [PATCH 570/923] [WATCHDOG] Fix declaration of struct smbios_entry_point in hpwdt On my HP DL380 G5 system running a 64-bit kernel, loading the hpwdt driver causes a crash because the driver attempts to ioremap an invalid physical address. This is because the driver has an incorrect definition of the SMBIOS table entry point structure: the table address is only a 32-bit quantity, and making it a u64 means that the high-order 32 bits end up containing garbage. Correcting the structure definition fixes the driver so that it loads without any problems on my system. Signed-off-by: Roland Dreier Acked-by: Thomas Mingarelli Signed-off-by: Wim Van Sebroeck Signed-off-by: Andrew Morton --- drivers/watchdog/hpwdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index a2e174b09fe..cd1cc2dacee 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -88,7 +88,7 @@ struct smbios_entry_point { u8 intermediate_anchor[5]; u8 intermediate_checksum; u16 table_length; - u64 table_address; + u32 table_address; u16 table_num_structs; u8 bcd_revision; }; -- GitLab From ef82710a3f80cd24d459c508f91542ecccb1f340 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 28 Feb 2008 09:48:10 -0800 Subject: [PATCH 571/923] [WATCHDOG] Fix return value warning in hpwdt The return value of smbios_scan_machine() is never used, and when it succeeds it doesn't return anything, so just make it void. This fixes: drivers/watchdog/hpwdt.c: In function 'smbios_scan_machine': drivers/watchdog/hpwdt.c:562: warning: control reaches end of non-void function Signed-off-by: Roland Dreier Acked-by: Thomas Mingarelli Signed-off-by: Wim Van Sebroeck Signed-off-by: Andrew Morton --- drivers/watchdog/hpwdt.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index cd1cc2dacee..b1cd0aca9b3 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -528,20 +528,19 @@ static int __devinit smbios_present(const char __iomem *p) return -ENODEV; } -static int __devinit smbios_scan_machine(void) +static void __devinit smbios_scan_machine(void) { char __iomem *p, *q; - int rc; if (efi_enabled) { if (efi.smbios == EFI_INVALID_TABLE_ADDR) - return -ENODEV; + return; p = ioremap(efi.smbios, 32); if (p == NULL) - return -ENOMEM; + return; - rc = smbios_present(p); + smbios_present(p); iounmap(p); } else { /* @@ -549,14 +548,12 @@ static int __devinit smbios_scan_machine(void) */ p = ioremap(PCI_ROM_BASE1, ROM_SIZE); if (p == NULL) - return -ENOMEM; + return; - for (q = p; q < p + ROM_SIZE; q += 16) { - rc = smbios_present(q); - if (!rc) { + for (q = p; q < p + ROM_SIZE; q += 16) + if (!smbios_present(q)) break; - } - } + iounmap(p); } } -- GitLab From 30ec910e02b35e7c3d600af694a5aec4b6690ddc Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 28 Feb 2008 12:34:42 -0800 Subject: [PATCH 572/923] [WATCHDOG] hpwdt: Use dmi_walk() instead of own copy We can simplify the code by deleting all of the duplicated DMI table walking code and using the kernel's existing dmi_walk() interface to find the DMI entry the driver is looking for. Signed-off-by: Roland Dreier Acked-by: Thomas Mingarelli Signed-off-by: Wim Van Sebroeck Signed-off-by: Andrew Morton --- drivers/watchdog/hpwdt.c | 203 ++++----------------------------------- 1 file changed, 20 insertions(+), 183 deletions(-) diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index b1cd0aca9b3..2686f3eaeed 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -58,41 +58,6 @@ struct bios32_service_dir { u8 reserved[5]; }; -/* - * smbios_entry_point - defines SMBIOS entry point structure - * - * anchor[4] - anchor string (_SM_) - * checksum - checksum of the entry point structure - * length - length of the entry point structure - * major_ver - major version (02h for revision 2.1) - * minor_ver - minor version (01h for revision 2.1) - * max_struct_size - size of the largest SMBIOS structure - * revision - entry point structure revision implemented - * formatted_area[5] - reserved - * intermediate_anchor[5] - intermediate anchor string (_DMI_) - * intermediate_checksum - intermediate checksum - * table_length - structure table length - * table_address - structure table address - * table_num_structs - number of SMBIOS structures present - * bcd_revision - BCD revision - */ -struct smbios_entry_point { - u8 anchor[4]; - u8 checksum; - u8 length; - u8 major_ver; - u8 minor_ver; - u16 max_struct_size; - u8 revision; - u8 formatted_area[5]; - u8 intermediate_anchor[5]; - u8 intermediate_checksum; - u16 table_length; - u32 table_address; - u16 table_num_structs; - u8 bcd_revision; -}; - /* type 212 */ struct smbios_cru64_info { u8 type; @@ -175,24 +140,6 @@ static struct pci_device_id hpwdt_devices[] = { }; MODULE_DEVICE_TABLE(pci, hpwdt_devices); -/* - * bios_checksum - */ -static int __devinit bios_checksum(const char __iomem *ptr, int len) -{ - char sum = 0; - int i; - - /* - * calculate checksum of size bytes. This should add up - * to zero if we have a valid header. - */ - for (i = 0; i < len; i++) - sum += ptr[i]; - - return ((sum == 0) && (len > 0)); -} - #ifndef CONFIG_X86_64 /* --32 Bit Bios------------------------------------------------------------ */ @@ -302,6 +249,24 @@ static int __devinit cru_detect(unsigned long map_entry, return retval; } +/* + * bios_checksum + */ +static int __devinit bios_checksum(const char __iomem *ptr, int len) +{ + char sum = 0; + int i; + + /* + * calculate checksum of size bytes. This should add up + * to zero if we have a valid header. + */ + for (i = 0; i < len; i++) + sum += ptr[i]; + + return ((sum == 0) && (len > 0)); +} + /* * bios32_present * @@ -410,12 +375,8 @@ asmlinkage void asminline_call(struct cmn_registers *pi86Regs, * dmi_find_cru * * Routine Description: - * This function checks wether or not a SMBIOS/DMI record is + * This function checks whether or not a SMBIOS/DMI record is * the 64bit CRU info or not - * - * Return Value: - * 0 : SUCCESS - if record found - * <0 : FAILURE - if record not found */ static void __devinit dmi_find_cru(const struct dmi_header *dm) { @@ -434,135 +395,11 @@ static void __devinit dmi_find_cru(const struct dmi_header *dm) } } -/* - * dmi_table - * - * Routine Description: - * Decode the SMBIOS/DMI table and check if we have a 64bit CRU record - * or not. - * - * We have to be cautious here. We have seen BIOSes with DMI pointers - * pointing to completely the wrong place for example - */ -static void __devinit dmi_table(u8 *buf, int len, int num, - void (*decode)(const struct dmi_header *)) -{ - u8 *data = buf; - int i = 0; - - /* - * Stop when we see all the items the table claimed to have - * OR we run off the end of the table (also happens) - */ - while ((i < num) && (data - buf + sizeof(struct dmi_header)) <= len) { - const struct dmi_header *dm = (const struct dmi_header *)data; - - /* - * We want to know the total length (formated area and strings) - * before decoding to make sure we won't run off the table in - * dmi_decode or dmi_string - */ - data += dm->length; - while ((data - buf < len - 1) && (data[0] || data[1])) - data++; - if (data - buf < len - 1) - decode(dm); - data += 2; - i++; - } -} - -/* - * smbios_present - * - * Routine Description: - * This function parses the SMBIOS entry point table to retrieve - * the 64 bit CRU Service. - * - * Return Value: - * 0 : SUCCESS - * <0 : FAILURE - */ -static int __devinit smbios_present(const char __iomem *p) -{ - struct smbios_entry_point *eps = - (struct smbios_entry_point *) p; - int length; - u8 *buf; - - /* check if we have indeed the SMBIOS table entry point */ - if ((strncmp((char *)eps->anchor, "_SM_", - sizeof(eps->anchor))) == 0) { - length = eps->length; - - /* SMBIOS v2.1 implementation might use 0x1e */ - if ((length == 0x1e) && - (eps->major_ver == 2) && - (eps->minor_ver == 1)) - length = 0x1f; - - /* - * Now we will check: - * - SMBIOS checksum must be 0 - * - intermediate anchor should be _DMI_ - * - intermediate checksum should be 0 - */ - if ((bios_checksum(p, length)) && - (strncmp((char *)eps->intermediate_anchor, "_DMI_", - sizeof(eps->intermediate_anchor)) == 0) && - (bios_checksum(p+0x10, 15))) { - buf = ioremap(eps->table_address, eps->table_length); - if (buf == NULL) - return -ENODEV; - - - /* Scan the DMI table for the 64 bit CRU service */ - dmi_table(buf, eps->table_length, - eps->table_num_structs, dmi_find_cru); - - iounmap(buf); - return 0; - } - } - - return -ENODEV; -} - -static void __devinit smbios_scan_machine(void) -{ - char __iomem *p, *q; - - if (efi_enabled) { - if (efi.smbios == EFI_INVALID_TABLE_ADDR) - return; - - p = ioremap(efi.smbios, 32); - if (p == NULL) - return; - - smbios_present(p); - iounmap(p); - } else { - /* - * Search from 0x0f0000 through 0x0fffff, inclusive. - */ - p = ioremap(PCI_ROM_BASE1, ROM_SIZE); - if (p == NULL) - return; - - for (q = p; q < p + ROM_SIZE; q += 16) - if (!smbios_present(q)) - break; - - iounmap(p); - } -} - static int __devinit detect_cru_service(void) { cru_rom_addr = NULL; - smbios_scan_machine(); /* will become dmi_walk(dmi_find_cru); */ + dmi_walk(dmi_find_cru); /* if cru_rom_addr has been set then we found a CRU service */ return ((cru_rom_addr != NULL)? 0: -ENODEV); -- GitLab From d4423fd07919756342dffffac45ee068d0a7f5a5 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 6 Mar 2008 13:27:16 +0200 Subject: [PATCH 573/923] ARM: OMAP1: Refresh OSK defconfig Refresh OSK defconfig Signed-off-by: Tony Lindgren --- arch/arm/configs/omap_osk_5912_defconfig | 113 ++++++++++++++++++----- 1 file changed, 89 insertions(+), 24 deletions(-) diff --git a/arch/arm/configs/omap_osk_5912_defconfig b/arch/arm/configs/omap_osk_5912_defconfig index d592a648711..600be0f0e95 100644 --- a/arch/arm/configs/omap_osk_5912_defconfig +++ b/arch/arm/configs/omap_osk_5912_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.24-rc5 -# Mon Dec 17 21:12:45 2007 +# Linux kernel version: 2.6.25-rc3 +# Mon Mar 3 03:35:17 2008 # CONFIG_ARM=y CONFIG_SYS_SUPPORTS_APM_EMULATION=y @@ -21,6 +21,7 @@ CONFIG_RWSEM_GENERIC_SPINLOCK=y # CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_ARCH_SUPPORTS_AOUT=y CONFIG_ZONE_DMA=y CONFIG_VECTORS_BASE=0xffff0000 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" @@ -39,17 +40,22 @@ CONFIG_SYSVIPC_SYSCTL=y # CONFIG_POSIX_MQUEUE is not set # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_USER_NS is not set -# CONFIG_PID_NS is not set # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set CONFIG_LOG_BUF_SHIFT=14 # CONFIG_CGROUPS is not set +CONFIG_GROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y -CONFIG_FAIR_USER_SCHED=y -# CONFIG_FAIR_CGROUP_SCHED is not set +# CONFIG_RT_GROUP_SCHED is not set +CONFIG_USER_SCHED=y +# CONFIG_CGROUP_SCHED is not set # CONFIG_SYSFS_DEPRECATED is not set # CONFIG_RELAY is not set +CONFIG_NAMESPACES=y +# CONFIG_UTS_NS is not set +# CONFIG_IPC_NS is not set +# CONFIG_USER_NS is not set +# CONFIG_PID_NS is not set CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" CONFIG_CC_OPTIMIZE_FOR_SIZE=y @@ -63,17 +69,26 @@ CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y +CONFIG_COMPAT_BRK=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set +# CONFIG_PROFILING is not set +# CONFIG_MARKERS is not set +CONFIG_HAVE_OPROFILE=y +# CONFIG_KPROBES is not set +CONFIG_HAVE_KPROBES=y +CONFIG_PROC_PAGE_MONITOR=y +CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 @@ -101,6 +116,8 @@ CONFIG_IOSCHED_CFQ=y CONFIG_DEFAULT_CFQ=y # CONFIG_DEFAULT_NOOP is not set CONFIG_DEFAULT_IOSCHED="cfq" +CONFIG_CLASSIC_RCU=y +# CONFIG_PREEMPT_RCU is not set # # System Type @@ -129,6 +146,7 @@ CONFIG_DEFAULT_IOSCHED="cfq" # CONFIG_ARCH_KS8695 is not set # CONFIG_ARCH_NS9XXX is not set # CONFIG_ARCH_MXC is not set +# CONFIG_ARCH_ORION is not set # CONFIG_ARCH_PNX4008 is not set # CONFIG_ARCH_PXA is not set # CONFIG_ARCH_RPC is not set @@ -138,6 +156,7 @@ CONFIG_DEFAULT_IOSCHED="cfq" # CONFIG_ARCH_LH7A40X is not set # CONFIG_ARCH_DAVINCI is not set CONFIG_ARCH_OMAP=y +# CONFIG_ARCH_MSM7X00A is not set # # TI OMAP Implementations @@ -154,6 +173,7 @@ CONFIG_OMAP_MUX=y # CONFIG_OMAP_MUX_DEBUG is not set CONFIG_OMAP_MUX_WARNINGS=y CONFIG_OMAP_MCBSP=y +# CONFIG_OMAP_MMU_FWK is not set # CONFIG_OMAP_MPU_TIMER is not set CONFIG_OMAP_32K_TIMER=y CONFIG_OMAP_32K_TIMER_HZ=128 @@ -275,6 +295,7 @@ CONFIG_ZBOOT_ROM_BSS=0x0 CONFIG_CMDLINE="mem=32M console=ttyS0,115200 initrd=0x10400000,8M root=/dev/ram0 rw" # CONFIG_XIP_KERNEL is not set # CONFIG_KEXEC is not set +# CONFIG_ATAGS_PROC is not set # # CPU Frequency scaling @@ -307,9 +328,10 @@ CONFIG_PM=y # CONFIG_PM_LEGACY is not set # CONFIG_PM_DEBUG is not set CONFIG_PM_SLEEP=y -CONFIG_SUSPEND_UP_POSSIBLE=y CONFIG_SUSPEND=y +CONFIG_SUSPEND_FREEZER=y # CONFIG_APM_EMULATION is not set +CONFIG_ARCH_SUSPEND_POSSIBLE=y # # Networking @@ -326,6 +348,7 @@ CONFIG_XFRM=y # CONFIG_XFRM_USER is not set # CONFIG_XFRM_SUB_POLICY is not set # CONFIG_XFRM_MIGRATE is not set +# CONFIG_XFRM_STATISTICS is not set # CONFIG_NET_KEY is not set CONFIG_INET=y CONFIG_IP_MULTICAST=y @@ -381,6 +404,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # # CONFIG_NET_PKTGEN is not set # CONFIG_HAMRADIO is not set +# CONFIG_CAN is not set # CONFIG_IRDA is not set # CONFIG_BT is not set # CONFIG_AF_RXRPC is not set @@ -493,11 +517,13 @@ CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=8192 -CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_BLK_DEV_XIP is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_93CX6 is not set +# CONFIG_ENCLOSURE_SERVICES is not set +CONFIG_HAVE_IDE=y CONFIG_IDE=m CONFIG_BLK_DEV_IDE=m @@ -519,7 +545,6 @@ CONFIG_IDE_PROC_FS=y # # CONFIG_IDE_GENERIC is not set # CONFIG_BLK_DEV_PLATFORM is not set -# CONFIG_IDE_ARM is not set # CONFIG_BLK_DEV_IDEDMA is not set CONFIG_IDE_ARCH_OBSOLETE_INIT=y # CONFIG_BLK_DEV_HD is not set @@ -553,6 +578,7 @@ CONFIG_SMC91X=y # CONFIG_IBM_NEW_EMAC_EMAC4 is not set # CONFIG_B44 is not set CONFIG_NETDEV_1000=y +# CONFIG_E1000E_ENABLED is not set CONFIG_NETDEV_10000=y # @@ -574,7 +600,6 @@ CONFIG_PPP_MULTILINK=y # CONFIG_PPPOL2TP is not set # CONFIG_SLIP is not set CONFIG_SLHC=y -# CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set @@ -671,6 +696,7 @@ CONFIG_HW_RANDOM_OMAP=m # CONFIG_SYNCLINK_CS is not set # CONFIG_CARDMAN_4000 is not set # CONFIG_CARDMAN_4040 is not set +# CONFIG_IPWIRELESS is not set # CONFIG_RAW_DRIVER is not set # CONFIG_TCG_TPM is not set CONFIG_I2C=y @@ -698,12 +724,10 @@ CONFIG_I2C_OMAP=y # # Miscellaneous I2C Chip support # -# CONFIG_SENSORS_DS1337 is not set -# CONFIG_SENSORS_DS1374 is not set # CONFIG_DS1682 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set -# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCF8591 is not set # CONFIG_ISP1301_OMAP is not set CONFIG_TPS65010=y @@ -731,6 +755,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_ADM1031 is not set # CONFIG_SENSORS_ADM9240 is not set # CONFIG_SENSORS_ADT7470 is not set +# CONFIG_SENSORS_ADT7473 is not set # CONFIG_SENSORS_ATXP1 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_F71805F is not set @@ -758,6 +783,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_SMSC47M192 is not set # CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_W83781D is not set @@ -765,6 +791,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_W83792D is not set # CONFIG_SENSORS_W83793 is not set # CONFIG_SENSORS_W83L785TS is not set +# CONFIG_SENSORS_W83L786NG is not set # CONFIG_SENSORS_W83627HF is not set # CONFIG_SENSORS_W83627EHF is not set # CONFIG_HWMON_DEBUG_CHIP is not set @@ -780,6 +807,7 @@ CONFIG_SSB_POSSIBLE=y # Multifunction device drivers # # CONFIG_MFD_SM501 is not set +# CONFIG_MFD_ASIC3 is not set # # Multimedia devices @@ -865,10 +893,6 @@ CONFIG_USB_ARCH_HAS_OHCI=y # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' # - -# -# USB Gadget Support -# # CONFIG_USB_GADGET is not set # CONFIG_MMC is not set # CONFIG_NEW_LEDS is not set @@ -889,12 +913,10 @@ CONFIG_EXT2_FS=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_ROMFS_FS is not set +CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y CONFIG_AUTOFS_FS=y CONFIG_AUTOFS4_FS=y # CONFIG_FUSE_FS is not set @@ -948,8 +970,10 @@ CONFIG_JFFS2_RTIME=y # CONFIG_JFFS2_RUBIN is not set # CONFIG_CRAMFS is not set # CONFIG_VXFS_FS is not set +# CONFIG_MINIX_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set +# CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set CONFIG_NETWORK_FILESYSTEMS=y @@ -1019,9 +1043,6 @@ CONFIG_NLS_ISO8859_1=m # CONFIG_NLS_KOI8_U is not set # CONFIG_NLS_UTF8 is not set # CONFIG_DLM is not set -CONFIG_INSTRUMENTATION=y -# CONFIG_PROFILING is not set -# CONFIG_MARKERS is not set # # Kernel hacking @@ -1045,7 +1066,51 @@ CONFIG_FRAME_POINTER=y # CONFIG_KEYS is not set # CONFIG_SECURITY is not set # CONFIG_SECURITY_FILE_CAPABILITIES is not set -# CONFIG_CRYPTO is not set +CONFIG_CRYPTO=y +# CONFIG_CRYPTO_SEQIV is not set +# CONFIG_CRYPTO_MANAGER is not set +# CONFIG_CRYPTO_HMAC is not set +# CONFIG_CRYPTO_XCBC is not set +# CONFIG_CRYPTO_NULL is not set +# CONFIG_CRYPTO_MD4 is not set +# CONFIG_CRYPTO_MD5 is not set +# CONFIG_CRYPTO_SHA1 is not set +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set +# CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set +# CONFIG_CRYPTO_GF128MUL is not set +# CONFIG_CRYPTO_ECB is not set +# CONFIG_CRYPTO_CBC is not set +# CONFIG_CRYPTO_PCBC is not set +# CONFIG_CRYPTO_LRW is not set +# CONFIG_CRYPTO_XTS is not set +# CONFIG_CRYPTO_CTR is not set +# CONFIG_CRYPTO_GCM is not set +# CONFIG_CRYPTO_CCM is not set +# CONFIG_CRYPTO_CRYPTD is not set +# CONFIG_CRYPTO_DES is not set +# CONFIG_CRYPTO_FCRYPT is not set +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_TWOFISH is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_ARC4 is not set +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_ANUBIS is not set +# CONFIG_CRYPTO_SEED is not set +# CONFIG_CRYPTO_SALSA20 is not set +# CONFIG_CRYPTO_DEFLATE is not set +# CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_CAMELLIA is not set +# CONFIG_CRYPTO_TEST is not set +# CONFIG_CRYPTO_AUTHENC is not set +# CONFIG_CRYPTO_LZO is not set +CONFIG_CRYPTO_HW=y # # Library routines -- GitLab From d68a8ce8343365f8560fa9f89300fb4cd2415459 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 6 Mar 2008 13:27:16 +0200 Subject: [PATCH 574/923] ARM: OMAP1: Refresh H2 defconfig Refresh H2 defconfig Signed-off-by: Tony Lindgren --- arch/arm/configs/omap_h2_1610_defconfig | 71 +++++++++++++++++-------- 1 file changed, 49 insertions(+), 22 deletions(-) diff --git a/arch/arm/configs/omap_h2_1610_defconfig b/arch/arm/configs/omap_h2_1610_defconfig index c2345af3707..323c1deeb95 100644 --- a/arch/arm/configs/omap_h2_1610_defconfig +++ b/arch/arm/configs/omap_h2_1610_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.24-rc5 -# Mon Dec 17 20:04:38 2007 +# Linux kernel version: 2.6.25-rc3 +# Mon Mar 3 03:39:48 2008 # CONFIG_ARM=y CONFIG_SYS_SUPPORTS_APM_EMULATION=y @@ -21,6 +21,7 @@ CONFIG_RWSEM_GENERIC_SPINLOCK=y # CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_ARCH_SUPPORTS_AOUT=y CONFIG_ZONE_DMA=y CONFIG_VECTORS_BASE=0xffff0000 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" @@ -40,17 +41,22 @@ CONFIG_SYSVIPC_SYSCTL=y # CONFIG_POSIX_MQUEUE is not set # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_USER_NS is not set -# CONFIG_PID_NS is not set # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set CONFIG_LOG_BUF_SHIFT=14 # CONFIG_CGROUPS is not set +CONFIG_GROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y -CONFIG_FAIR_USER_SCHED=y -# CONFIG_FAIR_CGROUP_SCHED is not set +# CONFIG_RT_GROUP_SCHED is not set +CONFIG_USER_SCHED=y +# CONFIG_CGROUP_SCHED is not set # CONFIG_SYSFS_DEPRECATED is not set # CONFIG_RELAY is not set +CONFIG_NAMESPACES=y +# CONFIG_UTS_NS is not set +# CONFIG_IPC_NS is not set +# CONFIG_USER_NS is not set +# CONFIG_PID_NS is not set CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" CONFIG_CC_OPTIMIZE_FOR_SIZE=y @@ -64,17 +70,26 @@ CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y +CONFIG_COMPAT_BRK=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set +# CONFIG_PROFILING is not set +# CONFIG_MARKERS is not set +CONFIG_HAVE_OPROFILE=y +# CONFIG_KPROBES is not set +CONFIG_HAVE_KPROBES=y +CONFIG_PROC_PAGE_MONITOR=y +CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 @@ -102,6 +117,8 @@ CONFIG_DEFAULT_AS=y # CONFIG_DEFAULT_CFQ is not set # CONFIG_DEFAULT_NOOP is not set CONFIG_DEFAULT_IOSCHED="anticipatory" +CONFIG_CLASSIC_RCU=y +# CONFIG_PREEMPT_RCU is not set # # System Type @@ -130,6 +147,7 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" # CONFIG_ARCH_KS8695 is not set # CONFIG_ARCH_NS9XXX is not set # CONFIG_ARCH_MXC is not set +# CONFIG_ARCH_ORION is not set # CONFIG_ARCH_PNX4008 is not set # CONFIG_ARCH_PXA is not set # CONFIG_ARCH_RPC is not set @@ -139,6 +157,7 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" # CONFIG_ARCH_LH7A40X is not set # CONFIG_ARCH_DAVINCI is not set CONFIG_ARCH_OMAP=y +# CONFIG_ARCH_MSM7X00A is not set # # TI OMAP Implementations @@ -155,6 +174,7 @@ CONFIG_OMAP_MUX=y # CONFIG_OMAP_MUX_DEBUG is not set CONFIG_OMAP_MUX_WARNINGS=y CONFIG_OMAP_MCBSP=y +# CONFIG_OMAP_MMU_FWK is not set # CONFIG_OMAP_MPU_TIMER is not set CONFIG_OMAP_32K_TIMER=y CONFIG_OMAP_32K_TIMER_HZ=128 @@ -266,6 +286,7 @@ CONFIG_ZBOOT_ROM_BSS=0x0 CONFIG_CMDLINE="mem=32M console=ttyS0,115200n8 root=0801 ro init=/bin/sh" # CONFIG_XIP_KERNEL is not set # CONFIG_KEXEC is not set +# CONFIG_ATAGS_PROC is not set # # CPU Frequency scaling @@ -311,9 +332,10 @@ CONFIG_PM=y # CONFIG_PM_LEGACY is not set # CONFIG_PM_DEBUG is not set CONFIG_PM_SLEEP=y -CONFIG_SUSPEND_UP_POSSIBLE=y CONFIG_SUSPEND=y +CONFIG_SUSPEND_FREEZER=y # CONFIG_APM_EMULATION is not set +CONFIG_ARCH_SUSPEND_POSSIBLE=y # # Networking @@ -330,6 +352,7 @@ CONFIG_XFRM=y # CONFIG_XFRM_USER is not set # CONFIG_XFRM_SUB_POLICY is not set # CONFIG_XFRM_MIGRATE is not set +# CONFIG_XFRM_STATISTICS is not set # CONFIG_NET_KEY is not set CONFIG_INET=y # CONFIG_IP_MULTICAST is not set @@ -384,6 +407,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # # CONFIG_NET_PKTGEN is not set # CONFIG_HAMRADIO is not set +# CONFIG_CAN is not set # CONFIG_IRDA is not set # CONFIG_BT is not set # CONFIG_AF_RXRPC is not set @@ -421,11 +445,13 @@ CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=8192 -CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_BLK_DEV_XIP is not set # CONFIG_CDROM_PKTCDVD is not set CONFIG_ATA_OVER_ETH=m CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_93CX6 is not set +# CONFIG_ENCLOSURE_SERVICES is not set +# CONFIG_HAVE_IDE is not set # # SCSI device support @@ -489,6 +515,7 @@ CONFIG_SMC91X=y # CONFIG_IBM_NEW_EMAC_EMAC4 is not set # CONFIG_B44 is not set CONFIG_NETDEV_1000=y +# CONFIG_E1000E_ENABLED is not set CONFIG_NETDEV_10000=y # @@ -512,7 +539,6 @@ CONFIG_SLIP_COMPRESSED=y CONFIG_SLHC=y # CONFIG_SLIP_SMART is not set # CONFIG_SLIP_MODE_SLIP6 is not set -# CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set @@ -616,12 +642,10 @@ CONFIG_I2C_OMAP=y # # Miscellaneous I2C Chip support # -# CONFIG_SENSORS_DS1337 is not set -# CONFIG_SENSORS_DS1374 is not set # CONFIG_DS1682 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set -# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCF8591 is not set # CONFIG_ISP1301_OMAP is not set CONFIG_TPS65010=y @@ -649,6 +673,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_ADM1031 is not set # CONFIG_SENSORS_ADM9240 is not set # CONFIG_SENSORS_ADT7470 is not set +# CONFIG_SENSORS_ADT7473 is not set # CONFIG_SENSORS_ATXP1 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_F71805F is not set @@ -676,6 +701,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_SMSC47M192 is not set # CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_W83781D is not set @@ -683,6 +709,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_W83792D is not set # CONFIG_SENSORS_W83793 is not set # CONFIG_SENSORS_W83L785TS is not set +# CONFIG_SENSORS_W83L786NG is not set # CONFIG_SENSORS_W83627HF is not set # CONFIG_SENSORS_W83627EHF is not set # CONFIG_HWMON_DEBUG_CHIP is not set @@ -705,6 +732,7 @@ CONFIG_SSB_POSSIBLE=y # Multifunction device drivers # # CONFIG_MFD_SM501 is not set +# CONFIG_MFD_ASIC3 is not set # # Multimedia devices @@ -802,10 +830,6 @@ CONFIG_USB_ARCH_HAS_OHCI=y # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' # - -# -# USB Gadget Support -# # CONFIG_USB_GADGET is not set # CONFIG_MMC is not set # CONFIG_NEW_LEDS is not set @@ -826,12 +850,10 @@ CONFIG_EXT2_FS=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set -# CONFIG_MINIX_FS is not set -CONFIG_ROMFS_FS=y +CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_FUSE_FS is not set @@ -874,8 +896,10 @@ CONFIG_SYSFS=y # CONFIG_EFS_FS is not set CONFIG_CRAMFS=y # CONFIG_VXFS_FS is not set +# CONFIG_MINIX_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set +CONFIG_ROMFS_FS=y # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set CONFIG_NETWORK_FILESYSTEMS=y @@ -946,9 +970,6 @@ CONFIG_NLS_ISO8859_1=y # CONFIG_NLS_KOI8_U is not set # CONFIG_NLS_UTF8 is not set # CONFIG_DLM is not set -CONFIG_INSTRUMENTATION=y -# CONFIG_PROFILING is not set -# CONFIG_MARKERS is not set # # Kernel hacking @@ -975,6 +996,7 @@ CONFIG_FRAME_POINTER=y CONFIG_CRYPTO=y CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_BLKCIPHER=y +# CONFIG_CRYPTO_SEQIV is not set CONFIG_CRYPTO_MANAGER=y # CONFIG_CRYPTO_HMAC is not set # CONFIG_CRYPTO_XCBC is not set @@ -992,6 +1014,9 @@ CONFIG_CRYPTO_CBC=y CONFIG_CRYPTO_PCBC=m # CONFIG_CRYPTO_LRW is not set # CONFIG_CRYPTO_XTS is not set +# CONFIG_CRYPTO_CTR is not set +# CONFIG_CRYPTO_GCM is not set +# CONFIG_CRYPTO_CCM is not set # CONFIG_CRYPTO_CRYPTD is not set CONFIG_CRYPTO_DES=y # CONFIG_CRYPTO_FCRYPT is not set @@ -1006,12 +1031,14 @@ CONFIG_CRYPTO_DES=y # CONFIG_CRYPTO_KHAZAD is not set # CONFIG_CRYPTO_ANUBIS is not set # CONFIG_CRYPTO_SEED is not set +# CONFIG_CRYPTO_SALSA20 is not set # CONFIG_CRYPTO_DEFLATE is not set # CONFIG_CRYPTO_MICHAEL_MIC is not set # CONFIG_CRYPTO_CRC32C is not set # CONFIG_CRYPTO_CAMELLIA is not set # CONFIG_CRYPTO_TEST is not set # CONFIG_CRYPTO_AUTHENC is not set +# CONFIG_CRYPTO_LZO is not set CONFIG_CRYPTO_HW=y # -- GitLab From 19dc8a5b06aba0db11a600c10db5bc99839f098a Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 6 Mar 2008 13:28:06 +0200 Subject: [PATCH 575/923] ARM: OMAP1: Compile in other 16xx boards to OSK defconfig This allows monitoring compile issues with Kautobuild for other omap1 boards until we have more board specific defconfig files. After 2.6.25, we can add a generic config_omap_generic16xx to compile in support for all 16xx boards and then remove other boards from OSK defconfig. Signed-off-by: Tony Lindgren --- arch/arm/configs/omap_osk_5912_defconfig | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/configs/omap_osk_5912_defconfig b/arch/arm/configs/omap_osk_5912_defconfig index 600be0f0e95..d4ca5e6e4ff 100644 --- a/arch/arm/configs/omap_osk_5912_defconfig +++ b/arch/arm/configs/omap_osk_5912_defconfig @@ -193,13 +193,13 @@ CONFIG_ARCH_OMAP16XX=y # # OMAP Board Type # -# CONFIG_MACH_OMAP_INNOVATOR is not set -# CONFIG_MACH_OMAP_H2 is not set -# CONFIG_MACH_OMAP_H3 is not set +CONFIG_MACH_OMAP_INNOVATOR=y +CONFIG_MACH_OMAP_H2=y +CONFIG_MACH_OMAP_H3=y CONFIG_MACH_OMAP_OSK=y # CONFIG_OMAP_OSK_MISTRAL is not set -# CONFIG_MACH_NOKIA770 is not set -# CONFIG_MACH_OMAP_GENERIC is not set +CONFIG_MACH_NOKIA770=y +CONFIG_MACH_OMAP_GENERIC=y # # OMAP CPU Speed -- GitLab From 09f21ed4c1bd158a92114074c268e4a835690ca5 Mon Sep 17 00:00:00 2001 From: Kyungmin Park Date: Wed, 20 Feb 2008 15:30:06 -0800 Subject: [PATCH 576/923] ARM: OMAP2: Register the L4 io bus to boot OMAP2 This patch enables OMAP2 to boot. Signed-off-by: Kyungmin Park Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/io.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 5a4091f582e..69c8174f3aa 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -42,6 +42,12 @@ static struct map_desc omap2_io_desc[] __initdata = { .length = L3_24XX_SIZE, .type = MT_DEVICE }, + { + .virtual = L4_24XX_VIRT, + .pfn = __phys_to_pfn(L4_24XX_PHYS), + .length = L4_24XX_SIZE, + .type = MT_DEVICE + }, #ifdef CONFIG_ARCH_OMAP2430 { .virtual = L4_WK_243X_VIRT, -- GitLab From 2f40a178e70030c4712fe63807c883f34c3645eb Mon Sep 17 00:00:00 2001 From: Joy Latten Date: Thu, 6 Mar 2008 19:28:44 +0800 Subject: [PATCH 577/923] [CRYPTO] xcbc: Fix crash with IPsec When using aes-xcbc-mac for authentication in IPsec, the kernel crashes. It seems this algorithm doesn't account for the space IPsec may make in scatterlist for authtag. Thus when crypto_xcbc_digest_update2() gets called, nbytes may be less than sg[i].length. Since nbytes is an unsigned number, it wraps at the end of the loop allowing us to go back into loop and causing crash in memcpy. I used update function in digest.c to model this fix. Please let me know if it looks ok. Signed-off-by: Joy Latten Signed-off-by: Herbert Xu --- crypto/xcbc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/crypto/xcbc.c b/crypto/xcbc.c index 86727403e5a..2feb0f239c3 100644 --- a/crypto/xcbc.c +++ b/crypto/xcbc.c @@ -124,6 +124,11 @@ static int crypto_xcbc_digest_update2(struct hash_desc *pdesc, unsigned int offset = sg[i].offset; unsigned int slen = sg[i].length; + if (unlikely(slen > nbytes)) + slen = nbytes; + + nbytes -= slen; + while (slen > 0) { unsigned int len = min(slen, ((unsigned int)(PAGE_SIZE)) - offset); char *p = crypto_kmap(pg, 0) + offset; @@ -177,7 +182,6 @@ static int crypto_xcbc_digest_update2(struct hash_desc *pdesc, offset = 0; pg++; } - nbytes-=sg[i].length; i++; } while (nbytes>0); -- GitLab From fa9363c5f866d6beedf36d4f4b1393ba802d8248 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 5 Mar 2008 18:24:58 -0800 Subject: [PATCH 578/923] [WATCHDOG] replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: Wim Van Sebroeck Signed-off-by: Andrew Morton --- drivers/watchdog/machzwd.c | 2 +- drivers/watchdog/pcwd_usb.c | 4 ++-- drivers/watchdog/s3c2410_wdt.c | 8 ++++---- drivers/watchdog/shwdt.c | 2 +- 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c index e6e07b4575e..6905135a776 100644 --- a/drivers/watchdog/machzwd.c +++ b/drivers/watchdog/machzwd.c @@ -141,7 +141,7 @@ static unsigned long next_heartbeat = 0; #ifndef ZF_DEBUG # define dprintk(format, args...) #else -# define dprintk(format, args...) printk(KERN_DEBUG PFX ":%s:%d: " format, __FUNCTION__, __LINE__ , ## args) +# define dprintk(format, args...) printk(KERN_DEBUG PFX ":%s:%d: " format, __func__, __LINE__ , ## args) #endif diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c index 0f3fd6c9c35..bf443d077a1 100644 --- a/drivers/watchdog/pcwd_usb.c +++ b/drivers/watchdog/pcwd_usb.c @@ -179,11 +179,11 @@ static void usb_pcwd_intr_done(struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", __func__, urb->status); return; /* -EPIPE: should clear the halt */ default: /* error */ - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero urb status received: %d", __func__, urb->status); goto resubmit; } diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index 5d1c15f83d2..7645e881215 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -144,7 +144,7 @@ static int s3c2410wdt_start(void) } DBG("%s: wdt_count=0x%08x, wtcon=%08lx\n", - __FUNCTION__, wdt_count, wtcon); + __func__, wdt_count, wtcon); writel(wdt_count, wdt_base + S3C2410_WTDAT); writel(wdt_count, wdt_base + S3C2410_WTCNT); @@ -167,7 +167,7 @@ static int s3c2410wdt_set_heartbeat(int timeout) count = timeout * freq; DBG("%s: count=%d, timeout=%d, freq=%d\n", - __FUNCTION__, count, timeout, freq); + __func__, count, timeout, freq); /* if the count is bigger than the watchdog register, then work out what we need to do (and if) we can @@ -189,7 +189,7 @@ static int s3c2410wdt_set_heartbeat(int timeout) tmr_margin = timeout; DBG("%s: timeout=%d, divisor=%d, count=%d (%08x)\n", - __FUNCTION__, timeout, divisor, count, count/divisor); + __func__, timeout, divisor, count, count/divisor); count /= divisor; wdt_count = count; @@ -355,7 +355,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev) int ret; int size; - DBG("%s: probe=%p\n", __FUNCTION__, pdev); + DBG("%s: probe=%p\n", __func__, pdev); dev = &pdev->dev; wdt_dev = &pdev->dev; diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c index 61dde863bd4..1277f7e9cc5 100644 --- a/drivers/watchdog/shwdt.c +++ b/drivers/watchdog/shwdt.c @@ -298,7 +298,7 @@ static int sh_wdt_mmap(struct file *file, struct vm_area_struct *vma) if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT, PAGE_SIZE, vma->vm_page_prot)) { printk(KERN_ERR PFX "%s: io_remap_pfn_range failed\n", - __FUNCTION__); + __func__); return -EAGAIN; } -- GitLab From 996d62d449a7d5e691b0da22b7c877df08c2b0a4 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 25 Feb 2008 13:39:57 +0100 Subject: [PATCH 579/923] [WATCHDOG] Remove volatiles from watchdog device structures Remove the volatile since those are useless in such a structure. Signed-off-by: Florian Fainelli Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/cpu5wdt.c | 4 ++-- drivers/watchdog/mtx-1_wdt.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c index 5941ca601a3..df72f90123d 100644 --- a/drivers/watchdog/cpu5wdt.c +++ b/drivers/watchdog/cpu5wdt.c @@ -59,9 +59,9 @@ static int ticks = 10000; static struct { struct completion stop; - volatile int running; + int running; struct timer_list timer; - volatile int queue; + int queue; int default_ticks; unsigned long inuse; } cpu5wdt_device; diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c index 789831b3fa0..10b89f2703b 100644 --- a/drivers/watchdog/mtx-1_wdt.c +++ b/drivers/watchdog/mtx-1_wdt.c @@ -59,9 +59,9 @@ static int ticks = 100 * HZ; static struct { struct completion stop; - volatile int running; + int running; struct timer_list timer; - volatile int queue; + int queue; int default_ticks; unsigned long inuse; unsigned gpio; -- GitLab From be73a347ec7799aec0aa1008bd991f93dbfa80e8 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 29 Feb 2008 21:12:57 +0100 Subject: [PATCH 580/923] [ARM] 4845/1: Orion: Ignore memory tags with invalid data The DNS-323, Kurobox-Pro / Linkstation-Pro, QNAP TS-109/TS-209 and some other orion-based systems have several bogus memory entries in the tag table, which causes the system to crash at startup. Ignore them by resetting the tag ID to 0 in a machine fixup function. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Russell King --- arch/arm/mach-orion/common.c | 20 ++++++++++++++++++++ arch/arm/mach-orion/common.h | 6 ++++++ arch/arm/mach-orion/dns323-setup.c | 1 + arch/arm/mach-orion/kurobox_pro-setup.c | 1 + arch/arm/mach-orion/ts209-setup.c | 1 + 5 files changed, 29 insertions(+) diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c index 5f0ee4b8a9b..2d6d413f023 100644 --- a/arch/arm/mach-orion/common.c +++ b/arch/arm/mach-orion/common.c @@ -17,7 +17,9 @@ #include #include #include +#include #include +#include #include #include #include "common.h" @@ -347,3 +349,21 @@ void __init orion_init(void) platform_device_register(&orion_ehci1); platform_device_register(&orion_i2c); } + +/* + * Many orion-based systems have buggy bootloader implementations. + * This is a common fixup for bogus memory tags. + */ +void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t, + char **from, struct meminfo *meminfo) +{ + for (; t->hdr.size; t = tag_next(t)) + if (t->hdr.tag == ATAG_MEM && + (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK || + t->u.mem.start & ~PAGE_MASK)) { + printk(KERN_WARNING + "Clearing invalid memory bank %dKB@0x%08x\n", + t->u.mem.size / 1024, t->u.mem.start); + t->hdr.tag = 0; + } +} diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h index 10154ec885d..501497cc2c4 100644 --- a/arch/arm/mach-orion/common.h +++ b/arch/arm/mach-orion/common.h @@ -83,4 +83,10 @@ struct mv_sata_platform_data; void __init orion_sata_init(struct mv_sata_platform_data *sata_data); +struct machine_desc; +struct meminfo; +struct tag; +extern void __init tag_fixup_mem32(struct machine_desc *, struct tag *, + char **, struct meminfo *); + #endif /* __ARCH_ORION_COMMON_H__ */ diff --git a/arch/arm/mach-orion/dns323-setup.c b/arch/arm/mach-orion/dns323-setup.c index 02b280c2482..076e155ad51 100644 --- a/arch/arm/mach-orion/dns323-setup.c +++ b/arch/arm/mach-orion/dns323-setup.c @@ -319,4 +319,5 @@ MACHINE_START(DNS323, "D-Link DNS-323") .map_io = orion_map_io, .init_irq = orion_init_irq, .timer = &orion_timer, + .fixup = tag_fixup_mem32, MACHINE_END diff --git a/arch/arm/mach-orion/kurobox_pro-setup.c b/arch/arm/mach-orion/kurobox_pro-setup.c index 6817aca4aa2..785a07bdf1e 100644 --- a/arch/arm/mach-orion/kurobox_pro-setup.c +++ b/arch/arm/mach-orion/kurobox_pro-setup.c @@ -240,4 +240,5 @@ MACHINE_START(KUROBOX_PRO, "Buffalo/Revogear Kurobox Pro") .map_io = orion_map_io, .init_irq = orion_init_irq, .timer = &orion_timer, + .fixup = tag_fixup_mem32, MACHINE_END diff --git a/arch/arm/mach-orion/ts209-setup.c b/arch/arm/mach-orion/ts209-setup.c index b8cfe6813e9..45764dad16d 100644 --- a/arch/arm/mach-orion/ts209-setup.c +++ b/arch/arm/mach-orion/ts209-setup.c @@ -357,4 +357,5 @@ MACHINE_START(TS209, "QNAP TS-109/TS-209") .map_io = orion_map_io, .init_irq = orion_init_irq, .timer = &orion_timer, + .fixup = tag_fixup_mem32, MACHINE_END -- GitLab From 10debfd29c639366f26595606b51abd27ccbb028 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 5 Mar 2008 08:44:13 -0800 Subject: [PATCH 581/923] [ARM] include/asm-arm - use angle brackets for includes Signed-off-by: Joe Perches include/asm-arm/plat-s3c/uncompress.h | 4 ++-- include/asm-arm/proc-fns.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) Signed-off-by: Russell King --- include/asm-arm/plat-s3c/uncompress.h | 4 ++-- include/asm-arm/proc-fns.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/asm-arm/plat-s3c/uncompress.h b/include/asm-arm/plat-s3c/uncompress.h index b5e6208175d..19b9eda3948 100644 --- a/include/asm-arm/plat-s3c/uncompress.h +++ b/include/asm-arm/plat-s3c/uncompress.h @@ -27,8 +27,8 @@ static void arch_detect_cpu(void); /* defines for UART registers */ -#include "asm/plat-s3c/regs-serial.h" -#include "asm/plat-s3c/regs-watchdog.h" +#include +#include /* working in physical space... */ #undef S3C2410_WDOGREG diff --git a/include/asm-arm/proc-fns.h b/include/asm-arm/proc-fns.h index a4ce457199d..75ec760f4c7 100644 --- a/include/asm-arm/proc-fns.h +++ b/include/asm-arm/proc-fns.h @@ -214,9 +214,9 @@ #ifndef __ASSEMBLY__ #ifndef MULTI_CPU -#include "asm/cpu-single.h" +#include #else -#include "asm/cpu-multi32.h" +#include #endif #include -- GitLab From b24061fadc2b996fd38baaf01986eac666d0c61b Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Tue, 4 Mar 2008 21:56:21 +0100 Subject: [PATCH 582/923] [ARM] 4847/1: kprobes: fix compilation with CONFIG_DEBUG_FS=y Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/kernel/kprobes.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c index a22a98c43ca..13e371aad87 100644 --- a/arch/arm/kernel/kprobes.c +++ b/arch/arm/kernel/kprobes.c @@ -431,6 +431,11 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) return 0; } +int __kprobes arch_trampoline_kprobe(struct kprobe *p) +{ + return 0; +} + static struct undef_hook kprobes_break_hook = { .instr_mask = 0xffffffff, .instr_val = KPROBE_BREAKPOINT_INSTRUCTION, -- GitLab From 37aca70c626ce8f4e5848de2d4892b5ed74a6875 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 5 Mar 2008 00:08:29 +0100 Subject: [PATCH 583/923] [ARM] 4848/1: at91: remove false lockdep warnings Remove false lockdep warnings about lock recursion when declaring IRQs as being wake-capable, by marking putting GPIO irq_desc locks into their own class. (Thanks to Peter Zijlstra for helping track down such a small fix to this problem.) Signed-off-by: David Brownell Acked-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/gpio.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c index f629c2b5f0c..ee4964abcaf 100644 --- a/arch/arm/mach-at91/gpio.c +++ b/arch/arm/mach-at91/gpio.c @@ -490,6 +490,11 @@ postcore_initcall(at91_gpio_debugfs_init); /*--------------------------------------------------------------------------*/ +/* This lock class tells lockdep that GPIO irqs are in a different + * category than their parents, so it won't report false recursion. + */ +static struct lock_class_key gpio_lock_class; + /* * Called from the processor-specific init to enable GPIO interrupt support. */ @@ -510,6 +515,8 @@ void __init at91_gpio_irq_setup(void) __raw_writel(~0, this->regbase + PIO_IDR); for (i = 0, pin = this->chipbase; i < 32; i++, pin++) { + lockdep_set_class(&irq_desc[pin].lock, &gpio_lock_class); + /* * Can use the "simple" and not "edge" handler since it's * shorter, and the AIC handles interrupts sanely. -- GitLab From 9c4c9f38796faf750de8586becf43b769c76b674 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Wed, 5 Mar 2008 06:50:07 +0100 Subject: [PATCH 584/923] [ARM] 4849/1: move ATAGS asm definitions Move the definitions of ATAG_CORE and ATAG_CORE_SIZE in head.S to head-common.S. There is no use of these in head.S itself, but they are used in head-common.S. When building for the !CONFIG_MMU case these were not defined when compiling head-nommu.S (which includes head-common.S). Signed-off-by: Greg Ungerer Signed-off-by: Russell King --- arch/arm/kernel/head-common.S | 3 +++ arch/arm/kernel/head.S | 3 --- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S index 024a9cf469b..50f667febe2 100644 --- a/arch/arm/kernel/head-common.S +++ b/arch/arm/kernel/head-common.S @@ -11,6 +11,9 @@ * */ +#define ATAG_CORE 0x54410001 +#define ATAG_CORE_SIZE ((2*4 + 3*4) >> 2) + .type __switch_data, %object __switch_data: .long __mmap_switched diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 7898cbc9861..bff4c6e90dd 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -29,9 +29,6 @@ #define KERNEL_RAM_VADDR (PAGE_OFFSET + TEXT_OFFSET) #define KERNEL_RAM_PADDR (PHYS_OFFSET + TEXT_OFFSET) -#define ATAG_CORE 0x54410001 -#define ATAG_CORE_SIZE ((2*4 + 3*4) >> 2) - /* * swapper_pg_dir is the virtual address of the initial page table. -- GitLab From 92df78519d0a6a8677cb827b5a1b7d2520d7e202 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Wed, 5 Mar 2008 06:59:14 +0100 Subject: [PATCH 585/923] [ARM] 4850/1: include generic pgtable.h for !CONFIG_MMU case The nonmmu version of pgtable.h needs to include asm-generic/pgtable.h as well. It needs to pick up empty definitions of things like arch_enter_lazy_cpu_mode() to compile cleanly. Signed-off-by: Greg Ungerer Signed-off-by: Russell King --- include/asm-arm/pgtable-nommu.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/asm-arm/pgtable-nommu.h b/include/asm-arm/pgtable-nommu.h index 33c83dd8796..2e5868bbe03 100644 --- a/include/asm-arm/pgtable-nommu.h +++ b/include/asm-arm/pgtable-nommu.h @@ -92,6 +92,8 @@ extern unsigned int kobjsize(const void *objp); #define FIRST_USER_ADDRESS (0) +#include + #else /* -- GitLab From 8e86f4271aaac7685923b80cf57972be41afbc1d Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Tue, 4 Mar 2008 15:08:02 -0800 Subject: [PATCH 586/923] [ARM] replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: Russell King --- arch/arm/common/it8152.c | 6 +-- arch/arm/mach-h720x/common.c | 12 +++--- arch/arm/mach-imx/dma.c | 12 +++--- arch/arm/mach-imx/irq.c | 6 +-- arch/arm/mach-iop13xx/iq81340mc.c | 2 +- arch/arm/mach-iop13xx/iq81340sc.c | 2 +- arch/arm/mach-iop13xx/pci.c | 8 ++-- arch/arm/mach-iop13xx/setup.c | 2 +- arch/arm/mach-ixp4xx/common-pci.c | 2 +- arch/arm/mach-ixp4xx/gtwx5715-pci.c | 2 +- arch/arm/mach-netx/generic.c | 6 +-- arch/arm/mach-orion/gpio.c | 12 +++--- arch/arm/mach-pnx4008/clock.c | 2 +- arch/arm/mach-pnx4008/dma.c | 2 +- arch/arm/mach-pxa/cm-x270-pci.c | 2 +- arch/arm/mach-pxa/cm-x270.c | 4 +- arch/arm/mach-pxa/dma.c | 2 +- arch/arm/mach-pxa/em-x270.c | 2 +- arch/arm/mach-pxa/mainstone.c | 4 +- arch/arm/mach-pxa/trizeps4.c | 8 ++-- arch/arm/mach-sa1100/badge4.c | 6 +-- arch/arm/mach-sa1100/cpu-sa1100.c | 2 +- arch/arm/mach-sa1100/dma.c | 8 ++-- arch/arm/mach-sa1100/h3600.c | 14 +++---- arch/arm/plat-iop/pci.c | 2 +- arch/arm/plat-omap/dma.c | 4 +- arch/arm/plat-omap/dmtimer.c | 2 +- arch/arm/plat-s3c24xx/dma.c | 64 ++++++++++++++--------------- 28 files changed, 100 insertions(+), 100 deletions(-) diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c index 97b7dc13d9a..53826224148 100644 --- a/arch/arm/common/it8152.c +++ b/arch/arm/common/it8152.c @@ -274,7 +274,7 @@ static int it8152_pci_platform_notify_remove(struct device *dev) int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size) { dev_dbg(dev, "%s: dma_addr %08x, size %08x\n", - __FUNCTION__, dma_addr, size); + __func__, dma_addr, size); return (dev->bus == &pci_bus_type) && ((dma_addr + size - PHYS_OFFSET) >= SZ_64M); } @@ -289,7 +289,7 @@ int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size) */ int pci_set_dma_mask(struct pci_dev *dev, u64 mask) { - dev_dbg(&dev->dev, "%s: %llx\n", __FUNCTION__, mask); + dev_dbg(&dev->dev, "%s: %llx\n", __func__, mask); if (mask >= PHYS_OFFSET + SZ_64M - 1) return 0; @@ -299,7 +299,7 @@ int pci_set_dma_mask(struct pci_dev *dev, u64 mask) int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) { - dev_dbg(&dev->dev, "%s: %llx\n", __FUNCTION__, mask); + dev_dbg(&dev->dev, "%s: %llx\n", __func__, mask); if (mask >= PHYS_OFFSET + SZ_64M - 1) return 0; diff --git a/arch/arm/mach-h720x/common.c b/arch/arm/mach-h720x/common.c index 7f31816896a..45144ad2bed 100644 --- a/arch/arm/mach-h720x/common.c +++ b/arch/arm/mach-h720x/common.c @@ -103,7 +103,7 @@ static void h720x_gpio_handler(unsigned int mask, unsigned int irq, struct irq_desc *desc) { - IRQDBG("%s irq: %d\n",__FUNCTION__,irq); + IRQDBG("%s irq: %d\n", __func__, irq); desc = irq_desc + irq; while (mask) { if (mask & 1) { @@ -123,7 +123,7 @@ h720x_gpioa_demux_handler(unsigned int irq_unused, struct irq_desc *desc) mask = CPU_REG(GPIO_A_VIRT,GPIO_STAT); irq = IRQ_CHAINED_GPIOA(0); - IRQDBG("%s mask: 0x%08x irq: %d\n",__FUNCTION__,mask,irq); + IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); h720x_gpio_handler(mask, irq, desc); } @@ -133,7 +133,7 @@ h720x_gpiob_demux_handler(unsigned int irq_unused, struct irq_desc *desc) unsigned int mask, irq; mask = CPU_REG(GPIO_B_VIRT,GPIO_STAT); irq = IRQ_CHAINED_GPIOB(0); - IRQDBG("%s mask: 0x%08x irq: %d\n",__FUNCTION__,mask,irq); + IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); h720x_gpio_handler(mask, irq, desc); } @@ -144,7 +144,7 @@ h720x_gpioc_demux_handler(unsigned int irq_unused, struct irq_desc *desc) mask = CPU_REG(GPIO_C_VIRT,GPIO_STAT); irq = IRQ_CHAINED_GPIOC(0); - IRQDBG("%s mask: 0x%08x irq: %d\n",__FUNCTION__,mask,irq); + IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); h720x_gpio_handler(mask, irq, desc); } @@ -155,7 +155,7 @@ h720x_gpiod_demux_handler(unsigned int irq_unused, struct irq_desc *desc) mask = CPU_REG(GPIO_D_VIRT,GPIO_STAT); irq = IRQ_CHAINED_GPIOD(0); - IRQDBG("%s mask: 0x%08x irq: %d\n",__FUNCTION__,mask,irq); + IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); h720x_gpio_handler(mask, irq, desc); } @@ -167,7 +167,7 @@ h720x_gpioe_demux_handler(unsigned int irq_unused, struct irq_desc *desc) mask = CPU_REG(GPIO_E_VIRT,GPIO_STAT); irq = IRQ_CHAINED_GPIOE(0); - IRQDBG("%s mask: 0x%08x irq: %d\n",__FUNCTION__,mask,irq); + IRQDBG("%s mask: 0x%08x irq: %d\n", __func__, mask,irq); h720x_gpio_handler(mask, irq, desc); } #endif diff --git a/arch/arm/mach-imx/dma.c b/arch/arm/mach-imx/dma.c index bc6fb02d213..a59ff2987cb 100644 --- a/arch/arm/mach-imx/dma.c +++ b/arch/arm/mach-imx/dma.c @@ -54,7 +54,7 @@ static inline int imx_dma_sg_next(imx_dmach_t dma_ch, unsigned int lastcount) if (!imxdma->name) { printk(KERN_CRIT "%s: called for not allocated channel %d\n", - __FUNCTION__, dma_ch); + __func__, dma_ch); return 0; } @@ -288,7 +288,7 @@ imx_dma_setup_handlers(imx_dmach_t dma_ch, if (!imxdma->name) { printk(KERN_CRIT "%s: called for not allocated channel %d\n", - __FUNCTION__, dma_ch); + __func__, dma_ch); return -ENODEV; } @@ -321,7 +321,7 @@ void imx_dma_enable(imx_dmach_t dma_ch) if (!imxdma->name) { printk(KERN_CRIT "%s: called for not allocated channel %d\n", - __FUNCTION__, dma_ch); + __func__, dma_ch); return; } @@ -365,7 +365,7 @@ int imx_dma_request(imx_dmach_t dma_ch, const char *name) if (dma_ch >= IMX_DMA_CHANNELS) { printk(KERN_CRIT "%s: called for non-existed channel %d\n", - __FUNCTION__, dma_ch); + __func__, dma_ch); return -EINVAL; } @@ -396,7 +396,7 @@ void imx_dma_free(imx_dmach_t dma_ch) if (!imxdma->name) { printk(KERN_CRIT "%s: trying to free channel %d which is already freed\n", - __FUNCTION__, dma_ch); + __func__, dma_ch); return; } @@ -456,7 +456,7 @@ imx_dma_request_by_prio(imx_dmach_t * pdma_ch, const char *name, } } - printk(KERN_ERR "%s: no free DMA channel found\n", __FUNCTION__); + printk(KERN_ERR "%s: no free DMA channel found\n", __func__); return -ENODEV; } diff --git a/arch/arm/mach-imx/irq.c b/arch/arm/mach-imx/irq.c index a7465db8489..e6695c4e623 100644 --- a/arch/arm/mach-imx/irq.c +++ b/arch/arm/mach-imx/irq.c @@ -160,21 +160,21 @@ imx_gpio_irq_type(unsigned int _irq, unsigned int type) static void imx_gpio_ack_irq(unsigned int irq) { - DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, irq); + DEBUG_IRQ("%s: irq %d\n", __func__, irq); ISR(IRQ_TO_REG(irq)) = 1 << ((irq - IRQ_GPIOA(0)) % 32); } static void imx_gpio_mask_irq(unsigned int irq) { - DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, irq); + DEBUG_IRQ("%s: irq %d\n", __func__, irq); IMR(IRQ_TO_REG(irq)) &= ~( 1 << ((irq - IRQ_GPIOA(0)) % 32)); } static void imx_gpio_unmask_irq(unsigned int irq) { - DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, irq); + DEBUG_IRQ("%s: irq %d\n", __func__, irq); IMR(IRQ_TO_REG(irq)) |= 1 << ((irq - IRQ_GPIOA(0)) % 32); } diff --git a/arch/arm/mach-iop13xx/iq81340mc.c b/arch/arm/mach-iop13xx/iq81340mc.c index 268a8d84999..77b24cd1d88 100644 --- a/arch/arm/mach-iop13xx/iq81340mc.c +++ b/arch/arm/mach-iop13xx/iq81340mc.c @@ -81,7 +81,7 @@ static void __init iq81340mc_init(void) static void __init iq81340mc_timer_init(void) { unsigned long bus_freq = iop13xx_core_freq() / iop13xx_xsi_bus_ratio(); - printk(KERN_DEBUG "%s: bus frequency: %lu\n", __FUNCTION__, bus_freq); + printk(KERN_DEBUG "%s: bus frequency: %lu\n", __func__, bus_freq); iop_init_time(bus_freq); } diff --git a/arch/arm/mach-iop13xx/iq81340sc.c b/arch/arm/mach-iop13xx/iq81340sc.c index a51ffd2683e..e8522b3b816 100644 --- a/arch/arm/mach-iop13xx/iq81340sc.c +++ b/arch/arm/mach-iop13xx/iq81340sc.c @@ -83,7 +83,7 @@ static void __init iq81340sc_init(void) static void __init iq81340sc_timer_init(void) { unsigned long bus_freq = iop13xx_core_freq() / iop13xx_xsi_bus_ratio(); - printk(KERN_DEBUG "%s: bus frequency: %lu\n", __FUNCTION__, bus_freq); + printk(KERN_DEBUG "%s: bus frequency: %lu\n", __func__, bus_freq); iop_init_time(bus_freq); } diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c index 99d94cb1baf..7825c1aaa27 100644 --- a/arch/arm/mach-iop13xx/pci.c +++ b/arch/arm/mach-iop13xx/pci.c @@ -94,13 +94,13 @@ void iop13xx_map_pci_memory(void) , 0, iop13xx_atux_mem_size, MT_DEVICE); if (!iop13xx_atux_mem_base) { printk("%s: atux allocation " - "failed\n", __FUNCTION__); + "failed\n", __func__); BUG(); } } else iop13xx_atux_mem_size = 0; PRINTK("%s: atu: %d bus_size: %d mem_base: %x\n", - __FUNCTION__, atu, iop13xx_atux_mem_size, + __func__, atu, iop13xx_atux_mem_size, iop13xx_atux_mem_base); break; case 1: @@ -120,13 +120,13 @@ void iop13xx_map_pci_memory(void) , 0, iop13xx_atue_mem_size, MT_DEVICE); if (!iop13xx_atue_mem_base) { printk("%s: atue allocation " - "failed\n", __FUNCTION__); + "failed\n", __func__); BUG(); } } else iop13xx_atue_mem_size = 0; PRINTK("%s: atu: %d bus_size: %d mem_base: %x\n", - __FUNCTION__, atu, iop13xx_atue_mem_size, + __func__, atu, iop13xx_atue_mem_size, iop13xx_atue_mem_base); break; } diff --git a/arch/arm/mach-iop13xx/setup.c b/arch/arm/mach-iop13xx/setup.c index bfe0c87e339..246f6d47872 100644 --- a/arch/arm/mach-iop13xx/setup.c +++ b/arch/arm/mach-iop13xx/setup.c @@ -519,7 +519,7 @@ void __init iop13xx_platform_init(void) if (iq8134x_flash_resource.end > iq8134x_flash_resource.start) iop13xx_devices[plat_idx++] = &iq8134x_flash; else - printk(KERN_ERR "%s: Failed to probe flash size\n", __FUNCTION__); + printk(KERN_ERR "%s: Failed to probe flash size\n", __func__); #endif platform_add_devices(iop13xx_devices, plat_idx); diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c index bf04121d1a3..64be341109b 100644 --- a/arch/arm/mach-ixp4xx/common-pci.c +++ b/arch/arm/mach-ixp4xx/common-pci.c @@ -87,7 +87,7 @@ static inline int check_master_abort(void) if (isr & PCI_ISR_PFE) { /* make sure the Master Abort bit is reset */ *PCI_ISR = PCI_ISR_PFE; - pr_debug("%s failed\n", __FUNCTION__); + pr_debug("%s failed\n", __func__); return 1; } diff --git a/arch/arm/mach-ixp4xx/gtwx5715-pci.c b/arch/arm/mach-ixp4xx/gtwx5715-pci.c index 0d5a4245582..49dec786880 100644 --- a/arch/arm/mach-ixp4xx/gtwx5715-pci.c +++ b/arch/arm/mach-ixp4xx/gtwx5715-pci.c @@ -65,7 +65,7 @@ static int __init gtwx5715_map_irq(struct pci_dev *dev, u8 slot, u8 pin) else rc = gtwx5715_irqmap[slot][pin-1]; - printk("%s: Mapped slot %d pin %d to IRQ %d\n", __FUNCTION__,slot, pin, rc); + printk("%s: Mapped slot %d pin %d to IRQ %d\n", __func__, slot, pin, rc); return(rc); } diff --git a/arch/arm/mach-netx/generic.c b/arch/arm/mach-netx/generic.c index b9ca8f98265..fd7537f7d11 100644 --- a/arch/arm/mach-netx/generic.c +++ b/arch/arm/mach-netx/generic.c @@ -133,7 +133,7 @@ netx_hif_ack_irq(unsigned int _irq) val &= ~((1 << 24) << irq); writel(val, NETX_DPMAS_INT_EN); - DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, _irq); + DEBUG_IRQ("%s: irq %d\n", __func__, _irq); } static void @@ -145,7 +145,7 @@ netx_hif_mask_irq(unsigned int _irq) val = readl(NETX_DPMAS_INT_EN); val &= ~((1 << 24) << irq); writel(val, NETX_DPMAS_INT_EN); - DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, _irq); + DEBUG_IRQ("%s: irq %d\n", __func__, _irq); } static void @@ -157,7 +157,7 @@ netx_hif_unmask_irq(unsigned int _irq) val = readl(NETX_DPMAS_INT_EN); val |= (1 << 24) << irq; writel(val, NETX_DPMAS_INT_EN); - DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, _irq); + DEBUG_IRQ("%s: irq %d\n", __func__, _irq); } static struct irq_chip netx_hif_chip = { diff --git a/arch/arm/mach-orion/gpio.c b/arch/arm/mach-orion/gpio.c index d5f00c86d61..f713818c66a 100644 --- a/arch/arm/mach-orion/gpio.c +++ b/arch/arm/mach-orion/gpio.c @@ -36,7 +36,7 @@ int gpio_direction_input(unsigned pin) unsigned long flags; if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { - pr_debug("%s: invalid GPIO %d\n", __FUNCTION__, pin); + pr_debug("%s: invalid GPIO %d\n", __func__, pin); return -EINVAL; } @@ -62,7 +62,7 @@ int gpio_direction_output(unsigned pin, int value) int mask; if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { - pr_debug("%s: invalid GPIO %d\n", __FUNCTION__, pin); + pr_debug("%s: invalid GPIO %d\n", __func__, pin); return -EINVAL; } @@ -141,7 +141,7 @@ int gpio_request(unsigned pin, const char *label) unsigned long flags; if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { - pr_debug("%s: invalid GPIO %d\n", __FUNCTION__, pin); + pr_debug("%s: invalid GPIO %d\n", __func__, pin); return -EINVAL; } @@ -149,7 +149,7 @@ int gpio_request(unsigned pin, const char *label) if (gpio_label[pin]) { pr_debug("%s: GPIO %d already used as %s\n", - __FUNCTION__, pin, gpio_label[pin]); + __func__, pin, gpio_label[pin]); ret = -EBUSY; } else gpio_label[pin] = label ? label : "?"; @@ -162,12 +162,12 @@ EXPORT_SYMBOL(gpio_request); void gpio_free(unsigned pin) { if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { - pr_debug("%s: invalid GPIO %d\n", __FUNCTION__, pin); + pr_debug("%s: invalid GPIO %d\n", __func__, pin); return; } if (!gpio_label[pin]) - pr_warning("%s: GPIO %d already freed\n", __FUNCTION__, pin); + pr_warning("%s: GPIO %d already freed\n", __func__, pin); else gpio_label[pin] = NULL; } diff --git a/arch/arm/mach-pnx4008/clock.c b/arch/arm/mach-pnx4008/clock.c index daa8d3d98ef..8e00ed43fb9 100644 --- a/arch/arm/mach-pnx4008/clock.c +++ b/arch/arm/mach-pnx4008/clock.c @@ -976,7 +976,7 @@ static int __init clk_init(void) (*clkp)->set_parent((*clkp), (*clkp)->parent); } pr_debug("%s: clock %s, rate %ld\n", - __FUNCTION__, (*clkp)->name, (*clkp)->rate); + __func__, (*clkp)->name, (*clkp)->rate); } local_clk_use(&ck_pll4); diff --git a/arch/arm/mach-pnx4008/dma.c b/arch/arm/mach-pnx4008/dma.c index f7009d845be..fe152e82590 100644 --- a/arch/arm/mach-pnx4008/dma.c +++ b/arch/arm/mach-pnx4008/dma.c @@ -192,7 +192,7 @@ void pnx4008_free_channel(int ch) if (!dma_channels[ch].name) { printk(KERN_CRIT "%s: trying to free channel %d which is already freed\n", - __FUNCTION__, ch); + __func__, ch); return; } diff --git a/arch/arm/mach-pxa/cm-x270-pci.c b/arch/arm/mach-pxa/cm-x270-pci.c index 15c4e0df3e1..fcda7d5cb69 100644 --- a/arch/arm/mach-pxa/cm-x270-pci.c +++ b/arch/arm/mach-pxa/cm-x270-pci.c @@ -104,7 +104,7 @@ static int __init cmx270_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) { int irq; - dev_dbg(&dev->dev, "%s: slot=%x, pin=%x\n", __FUNCTION__, slot, pin); + dev_dbg(&dev->dev, "%s: slot=%x, pin=%x\n", __func__, slot, pin); irq = it8152_pci_map_irq(dev, slot, pin); if (irq) diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c index 6012177a29a..ecdbc96a4de 100644 --- a/arch/arm/mach-pxa/cm-x270.c +++ b/arch/arm/mach-pxa/cm-x270.c @@ -504,11 +504,11 @@ static void cmx270_mci_setpower(struct device *dev, unsigned int vdd) struct pxamci_platform_data *p_d = dev->platform_data; if ((1 << vdd) & p_d->ocr_mask) { - printk(KERN_DEBUG "%s: on\n", __FUNCTION__); + printk(KERN_DEBUG "%s: on\n", __func__); GPCR(105) = GPIO_bit(105); } else { GPSR(105) = GPIO_bit(105); - printk(KERN_DEBUG "%s: off\n", __FUNCTION__); + printk(KERN_DEBUG "%s: off\n", __func__); } } diff --git a/arch/arm/mach-pxa/dma.c b/arch/arm/mach-pxa/dma.c index 93c4f31f127..3215316d7b0 100644 --- a/arch/arm/mach-pxa/dma.c +++ b/arch/arm/mach-pxa/dma.c @@ -81,7 +81,7 @@ void pxa_free_dma (int dma_ch) if (!dma_channels[dma_ch].name) { printk (KERN_CRIT "%s: trying to free channel %d which is already freed\n", - __FUNCTION__, dma_ch); + __func__, dma_ch); return; } diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c index 3d0ad5065ee..3bb31314429 100644 --- a/arch/arm/mach-pxa/em-x270.c +++ b/arch/arm/mach-pxa/em-x270.c @@ -264,7 +264,7 @@ static int em_x270_mci_init(struct device *dev, "MMC card detect", data); if (err) { printk(KERN_ERR "%s: can't request MMC card detect IRQ: %d\n", - __FUNCTION__, err); + __func__, err); return err; } diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index 345c3deeb02..72a436fb9a2 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -390,11 +390,11 @@ static void mainstone_mci_setpower(struct device *dev, unsigned int vdd) struct pxamci_platform_data* p_d = dev->platform_data; if (( 1 << vdd) & p_d->ocr_mask) { - printk(KERN_DEBUG "%s: on\n", __FUNCTION__); + printk(KERN_DEBUG "%s: on\n", __func__); MST_MSCWR1 |= MST_MSCWR1_MMC_ON; MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL; } else { - printk(KERN_DEBUG "%s: off\n", __FUNCTION__); + printk(KERN_DEBUG "%s: off\n", __func__); MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON; } } diff --git a/arch/arm/mach-pxa/trizeps4.c b/arch/arm/mach-pxa/trizeps4.c index 853fc943375..f207fcd30cd 100644 --- a/arch/arm/mach-pxa/trizeps4.c +++ b/arch/arm/mach-pxa/trizeps4.c @@ -217,7 +217,7 @@ void board_pcmcia_power(int power) ConXS_BCR = trizeps_conxs_bcr; } - pr_debug("%s: o%s 0x%x\n", __FUNCTION__, power ? "n": "ff", trizeps_conxs_bcr); + pr_debug("%s: o%s 0x%x\n", __func__, power ? "n": "ff", trizeps_conxs_bcr); } /* backlight power switching for LCD panel */ @@ -228,7 +228,7 @@ static void board_backlight_power(int on) } else { trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP; } - pr_debug("%s: o%s 0x%x\n", __FUNCTION__, on ? "n" : "ff", trizeps_conxs_bcr); + pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff", trizeps_conxs_bcr); ConXS_BCR = trizeps_conxs_bcr; } @@ -238,10 +238,10 @@ static void board_mci_power(struct device *dev, unsigned int vdd) struct pxamci_platform_data* p_d = dev->platform_data; if (( 1 << vdd) & p_d->ocr_mask) { - pr_debug("%s: on\n", __FUNCTION__); + pr_debug("%s: on\n", __func__); /* FIXME fill in values here */ } else { - pr_debug("%s: off\n", __FUNCTION__); + pr_debug("%s: off\n", __func__); /* FIXME fill in values here */ } } diff --git a/arch/arm/mach-sa1100/badge4.c b/arch/arm/mach-sa1100/badge4.c index f60b7a66dfa..842d9e6dc5f 100644 --- a/arch/arm/mach-sa1100/badge4.c +++ b/arch/arm/mach-sa1100/badge4.c @@ -206,7 +206,7 @@ static int __init badge4_init(void) if (ret < 0) printk(KERN_ERR "%s: SA-1111 initialization failed (%d)\n", - __FUNCTION__, ret); + __func__, ret); /* maybe turn on 5v0 from the start */ @@ -240,11 +240,11 @@ void badge4_set_5V(unsigned subsystem, int on) /* detect on->off and off->on transitions */ if ((!old_5V_bitmap) && (badge4_5V_bitmap)) { /* was off, now on */ - printk(KERN_INFO "%s: enabling 5V supply rail\n", __FUNCTION__); + printk(KERN_INFO "%s: enabling 5V supply rail\n", __func__); GPSR = BADGE4_GPIO_PCMEN5V; } else if ((old_5V_bitmap) && (!badge4_5V_bitmap)) { /* was on, now off */ - printk(KERN_INFO "%s: disabling 5V supply rail\n", __FUNCTION__); + printk(KERN_INFO "%s: disabling 5V supply rail\n", __func__); GPCR = BADGE4_GPIO_PCMEN5V; } diff --git a/arch/arm/mach-sa1100/cpu-sa1100.c b/arch/arm/mach-sa1100/cpu-sa1100.c index d68630b74d7..343368aa82d 100644 --- a/arch/arm/mach-sa1100/cpu-sa1100.c +++ b/arch/arm/mach-sa1100/cpu-sa1100.c @@ -139,7 +139,7 @@ static void sa1100_update_dram_timings(int current_speed, int new_speed) if (settings->speed == 0) { panic("%s: couldn't find dram setting for speed %d\n", - __FUNCTION__, new_speed); + __func__, new_speed); } /* No risk, no fun: run with interrupts on! */ diff --git a/arch/arm/mach-sa1100/dma.c b/arch/arm/mach-sa1100/dma.c index 1fbe053e8b5..e5080286060 100644 --- a/arch/arm/mach-sa1100/dma.c +++ b/arch/arm/mach-sa1100/dma.c @@ -129,7 +129,7 @@ int sa1100_request_dma (dma_device_t device, const char *device_id, if (err) { printk(KERN_ERR "%s: unable to request IRQ %d for %s\n", - __FUNCTION__, IRQ_DMA0 + i, device_id); + __func__, IRQ_DMA0 + i, device_id); dma->device = 0; return err; } @@ -165,12 +165,12 @@ void sa1100_free_dma(dma_regs_t *regs) if (regs == (dma_regs_t *)&DDAR(i)) break; if (i >= SA1100_DMA_CHANNELS) { - printk(KERN_ERR "%s: bad DMA identifier\n", __FUNCTION__); + printk(KERN_ERR "%s: bad DMA identifier\n", __func__); return; } if (!dma_chan[i].device) { - printk(KERN_ERR "%s: Trying to free free DMA\n", __FUNCTION__); + printk(KERN_ERR "%s: Trying to free free DMA\n", __func__); return; } @@ -329,7 +329,7 @@ void sa1100_reset_dma(dma_regs_t *regs) if (regs == (dma_regs_t *)&DDAR(i)) break; if (i >= SA1100_DMA_CHANNELS) { - printk(KERN_ERR "%s: bad DMA identifier\n", __FUNCTION__); + printk(KERN_ERR "%s: bad DMA identifier\n", __func__); return; } diff --git a/arch/arm/mach-sa1100/h3600.c b/arch/arm/mach-sa1100/h3600.c index b72fee0f253..8473c37b77d 100644 --- a/arch/arm/mach-sa1100/h3600.c +++ b/arch/arm/mach-sa1100/h3600.c @@ -596,7 +596,7 @@ static void h3800_control_egpio(enum ipaq_egpio_type x, int setp) case IPAQ_EGPIO_CODEC_NRESET: case IPAQ_EGPIO_AUDIO_ON: case IPAQ_EGPIO_QMUTE: - printk("%s: error - should not be called\n", __FUNCTION__); + printk("%s: error - should not be called\n", __func__); break; case IPAQ_EGPIO_OPT_NVRAM_ON: SET_ASIC2(GPIO2_OPT_ON_NVRAM); @@ -638,7 +638,7 @@ static int h3800_pm_callback(int req) static u16 asic2_data; int result = 0; - printk("%s %d\n", __FUNCTION__, req); + printk("%s %d\n", __func__, req); switch (req) { case PM_RESUME: @@ -666,7 +666,7 @@ static int h3800_pm_callback(int req) asic2_data = H3800_ASIC2_GPIOPIOD; break; default: - printk("%s: unrecognized PM callback\n", __FUNCTION__); + printk("%s: unrecognized PM callback\n", __func__); break; } return result; @@ -706,7 +706,7 @@ static void h3800_IRQ_demux(unsigned int irq, struct irq_desc *desc) { int i; - if (0) printk("%s: interrupt received\n", __FUNCTION__); + if (0) printk("%s: interrupt received\n", __func__); desc->chip->ack(irq); @@ -716,21 +716,21 @@ static void h3800_IRQ_demux(unsigned int irq, struct irq_desc *desc) /* KPIO */ irq = H3800_ASIC2_KPIINTFLAG; - if (0) printk("%s KPIO 0x%08X\n", __FUNCTION__, irq); + if (0) printk("%s KPIO 0x%08X\n", __func__, irq); for (j = 0; j < H3800_KPIO_IRQ_COUNT; j++) if (irq & kpio_irq_mask[j]) handle_edge_irq(H3800_KPIO_IRQ_COUNT + j, irq_desc + H3800_KPIO_IRQ_COUNT + j); /* GPIO2 */ irq = H3800_ASIC2_GPIINTFLAG; - if (0) printk("%s GPIO 0x%08X\n", __FUNCTION__, irq); + if (0) printk("%s GPIO 0x%08X\n", __func__, irq); for (j = 0; j < H3800_GPIO_IRQ_COUNT; j++) if (irq & gpio_irq_mask[j]) handle_edge_irq(H3800_GPIO_IRQ_COUNT + j, irq_desc + H3800_GPIO_IRQ_COUNT + j); } if (i >= MAX_ASIC_ISR_LOOPS) - printk("%s: interrupt processing overrun\n", __FUNCTION__); + printk("%s: interrupt processing overrun\n", __func__); /* For level-based interrupts */ desc->chip->unmask(irq); diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c index 2b5aa1135b1..98d01517b56 100644 --- a/arch/arm/plat-iop/pci.c +++ b/arch/arm/plat-iop/pci.c @@ -371,7 +371,7 @@ static int __init iop3xx_init_atu_setup(char *str) default: printk(KERN_DEBUG "\"%s\" malformed at " "character: \'%c\'", - __FUNCTION__, + __func__, *str); *(str + 1) = '\0'; } diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index a46676db811..9255a4598c7 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -137,7 +137,7 @@ static void omap_disable_channel_irq(int lch); static inline void omap_enable_channel_irq(int lch); #define REVISIT_24XX() printk(KERN_ERR "FIXME: no %s on 24xx\n", \ - __FUNCTION__); + __func__); #ifdef CONFIG_ARCH_OMAP15XX /* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */ @@ -699,7 +699,7 @@ omap_dma_set_global_params(int arb_rate, int max_fifo_depth, int tparams) u32 reg; if (!cpu_class_is_omap2()) { - printk(KERN_ERR "FIXME: no %s on 15xx/16xx\n", __FUNCTION__); + printk(KERN_ERR "FIXME: no %s on 15xx/16xx\n", __func__); return; } diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c index e719d0eeb5c..302ad8dff2c 100644 --- a/arch/arm/plat-omap/dmtimer.c +++ b/arch/arm/plat-omap/dmtimer.c @@ -268,7 +268,7 @@ struct omap_dm_timer *omap_dm_timer_request_specific(int id) if (id <= 0 || id > dm_timer_count || dm_timers[id-1].reserved) { spin_unlock_irqrestore(&dm_timer_lock, flags); printk("BUG: warning at %s:%d/%s(): unable to get timer %d\n", - __FILE__, __LINE__, __FUNCTION__, id); + __FILE__, __LINE__, __func__, id); dump_stack(); return NULL; } diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c index ac9ff1666fc..60f162dc4fa 100644 --- a/arch/arm/plat-s3c24xx/dma.c +++ b/arch/arm/plat-s3c24xx/dma.c @@ -130,8 +130,8 @@ dmadbg_showregs(const char *fname, int line, struct s3c2410_dma_chan *chan) dmadbg_dumpregs(fname, line, chan, &state); } -#define dbg_showregs(chan) dmadbg_showregs(__FUNCTION__, __LINE__, (chan)) -#define dbg_showchan(chan) dmadbg_showchan(__FUNCTION__, __LINE__, (chan)) +#define dbg_showregs(chan) dmadbg_showregs(__func__, __LINE__, (chan)) +#define dbg_showchan(chan) dmadbg_showchan(__func__, __LINE__, (chan)) #else #define dbg_showregs(chan) do { } while(0) #define dbg_showchan(chan) do { } while(0) @@ -403,7 +403,7 @@ static int s3c2410_dma_start(struct s3c2410_dma_chan *chan) if (s3c2410_dma_waitforload(chan, __LINE__) == 0) { pr_debug("%s: buff not yet loaded, no more todo\n", - __FUNCTION__); + __func__); } else { chan->load_state = S3C2410_DMALOAD_1RUNNING; s3c2410_dma_loadbuffer(chan, chan->next); @@ -463,16 +463,16 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id, return -EINVAL; pr_debug("%s: id=%p, data=%08x, size=%d\n", - __FUNCTION__, id, (unsigned int)data, size); + __func__, id, (unsigned int)data, size); buf = kmem_cache_alloc(dma_kmem, GFP_ATOMIC); if (buf == NULL) { pr_debug("%s: out of memory (%ld alloc)\n", - __FUNCTION__, (long)sizeof(*buf)); + __func__, (long)sizeof(*buf)); return -ENOMEM; } - //pr_debug("%s: new buffer %p\n", __FUNCTION__, buf); + //pr_debug("%s: new buffer %p\n", __func__, buf); //dbg_showchan(chan); buf->next = NULL; @@ -486,18 +486,18 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id, if (chan->curr == NULL) { /* we've got nothing loaded... */ pr_debug("%s: buffer %p queued onto empty channel\n", - __FUNCTION__, buf); + __func__, buf); chan->curr = buf; chan->end = buf; chan->next = NULL; } else { pr_debug("dma%d: %s: buffer %p queued onto non-empty channel\n", - chan->number, __FUNCTION__, buf); + chan->number, __func__, buf); if (chan->end == NULL) pr_debug("dma%d: %s: %p not empty, and chan->end==NULL?\n", - chan->number, __FUNCTION__, chan); + chan->number, __func__, chan); chan->end->next = buf; chan->end = buf; @@ -572,7 +572,7 @@ s3c2410_dma_lastxfer(struct s3c2410_dma_chan *chan) if (s3c2410_dma_waitforload(chan, __LINE__) == 0) { /* flag error? */ printk(KERN_ERR "dma%d: timeout waiting for load (%s)\n", - chan->number, __FUNCTION__); + chan->number, __func__); return; } break; @@ -658,7 +658,7 @@ s3c2410_dma_irq(int irq, void *devpw) if (buf->magic != BUF_MAGIC) { printk(KERN_ERR "dma%d: %s: buf %p incorrect magic\n", - chan->number, __FUNCTION__, buf); + chan->number, __func__, buf); return IRQ_HANDLED; } @@ -692,7 +692,7 @@ s3c2410_dma_irq(int irq, void *devpw) if (s3c2410_dma_waitforload(chan, __LINE__) == 0) { /* flag error? */ printk(KERN_ERR "dma%d: timeout waiting for load (%s)\n", - chan->number, __FUNCTION__); + chan->number, __func__); return IRQ_HANDLED; } @@ -759,7 +759,7 @@ int s3c2410_dma_request(unsigned int channel, if (!chan->irq_claimed) { pr_debug("dma%d: %s : requesting irq %d\n", - channel, __FUNCTION__, chan->irq); + channel, __func__, chan->irq); chan->irq_claimed = 1; local_irq_restore(flags); @@ -786,7 +786,7 @@ int s3c2410_dma_request(unsigned int channel, /* need to setup */ - pr_debug("%s: channel initialised, %p\n", __FUNCTION__, chan); + pr_debug("%s: channel initialised, %p\n", __func__, chan); return chan->number | DMACH_LOW_LEVEL; } @@ -823,7 +823,7 @@ int s3c2410_dma_free(dmach_t channel, struct s3c2410_dma_client *client) if (chan->state != S3C2410_DMA_IDLE) { pr_debug("%s: need to stop dma channel %p\n", - __FUNCTION__, chan); + __func__, chan); /* possibly flush the channel */ s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STOP); @@ -852,7 +852,7 @@ static int s3c2410_dma_dostop(struct s3c2410_dma_chan *chan) unsigned long flags; unsigned long tmp; - pr_debug("%s:\n", __FUNCTION__); + pr_debug("%s:\n", __func__); dbg_showchan(chan); @@ -907,14 +907,14 @@ static int s3c2410_dma_flush(struct s3c2410_dma_chan *chan) struct s3c2410_dma_buf *buf, *next; unsigned long flags; - pr_debug("%s: chan %p (%d)\n", __FUNCTION__, chan, chan->number); + pr_debug("%s: chan %p (%d)\n", __func__, chan, chan->number); dbg_showchan(chan); local_irq_save(flags); if (chan->state != S3C2410_DMA_IDLE) { - pr_debug("%s: stopping channel...\n", __FUNCTION__ ); + pr_debug("%s: stopping channel...\n", __func__ ); s3c2410_dma_ctrl(chan->number, S3C2410_DMAOP_STOP); } @@ -929,7 +929,7 @@ static int s3c2410_dma_flush(struct s3c2410_dma_chan *chan) next = buf->next; pr_debug("%s: free buffer %p, next %p\n", - __FUNCTION__, buf, buf->next); + __func__, buf, buf->next); s3c2410_dma_buffdone(chan, buf, S3C2410_RES_ABORT); s3c2410_dma_freebuf(buf); @@ -976,7 +976,7 @@ static int s3c2410_dma_started(struct s3c2410_dma_chan *chan) if (s3c2410_dma_waitforload(chan, __LINE__) == 0) { pr_debug("%s: buff not yet loaded, no more todo\n", - __FUNCTION__); + __func__); } else { chan->load_state = S3C2410_DMALOAD_1RUNNING; s3c2410_dma_loadbuffer(chan, chan->next); @@ -1050,16 +1050,16 @@ int s3c2410_dma_config(dmach_t channel, struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); pr_debug("%s: chan=%d, xfer_unit=%d, dcon=%08x\n", - __FUNCTION__, channel, xferunit, dcon); + __func__, channel, xferunit, dcon); if (chan == NULL) return -EINVAL; - pr_debug("%s: Initial dcon is %08x\n", __FUNCTION__, dcon); + pr_debug("%s: Initial dcon is %08x\n", __func__, dcon); dcon |= chan->dcon & dma_sel.dcon_mask; - pr_debug("%s: New dcon is %08x\n", __FUNCTION__, dcon); + pr_debug("%s: New dcon is %08x\n", __func__, dcon); switch (xferunit) { case 1: @@ -1075,14 +1075,14 @@ int s3c2410_dma_config(dmach_t channel, break; default: - pr_debug("%s: bad transfer size %d\n", __FUNCTION__, xferunit); + pr_debug("%s: bad transfer size %d\n", __func__, xferunit); return -EINVAL; } dcon |= S3C2410_DCON_HWTRIG; dcon |= S3C2410_DCON_INTREQ; - pr_debug("%s: dcon now %08x\n", __FUNCTION__, dcon); + pr_debug("%s: dcon now %08x\n", __func__, dcon); chan->dcon = dcon; chan->xfer_unit = xferunit; @@ -1099,7 +1099,7 @@ int s3c2410_dma_setflags(dmach_t channel, unsigned int flags) if (chan == NULL) return -EINVAL; - pr_debug("%s: chan=%p, flags=%08x\n", __FUNCTION__, chan, flags); + pr_debug("%s: chan=%p, flags=%08x\n", __func__, chan, flags); chan->flags = flags; @@ -1120,7 +1120,7 @@ int s3c2410_dma_set_opfn(dmach_t channel, s3c2410_dma_opfn_t rtn) if (chan == NULL) return -EINVAL; - pr_debug("%s: chan=%p, op rtn=%p\n", __FUNCTION__, chan, rtn); + pr_debug("%s: chan=%p, op rtn=%p\n", __func__, chan, rtn); chan->op_fn = rtn; @@ -1136,7 +1136,7 @@ int s3c2410_dma_set_buffdone_fn(dmach_t channel, s3c2410_dma_cbfn_t rtn) if (chan == NULL) return -EINVAL; - pr_debug("%s: chan=%p, callback rtn=%p\n", __FUNCTION__, chan, rtn); + pr_debug("%s: chan=%p, callback rtn=%p\n", __func__, chan, rtn); chan->callback_fn = rtn; @@ -1170,7 +1170,7 @@ int s3c2410_dma_devconfig(int channel, return -EINVAL; pr_debug("%s: source=%d, hwcfg=%08x, devaddr=%08lx\n", - __FUNCTION__, (int)source, hwcfg, devaddr); + __func__, (int)source, hwcfg, devaddr); chan->source = source; chan->dev_addr = devaddr; @@ -1180,7 +1180,7 @@ int s3c2410_dma_devconfig(int channel, case S3C2410_DMASRC_HW: /* source is hardware */ pr_debug("%s: hw source, devaddr=%08lx, hwcfg=%d\n", - __FUNCTION__, devaddr, hwcfg); + __func__, devaddr, hwcfg); dma_wrreg(chan, S3C2410_DMA_DISRCC, hwcfg & 3); dma_wrreg(chan, S3C2410_DMA_DISRC, devaddr); dma_wrreg(chan, S3C2410_DMA_DIDSTC, (0<<1) | (0<<0)); @@ -1190,8 +1190,8 @@ int s3c2410_dma_devconfig(int channel, case S3C2410_DMASRC_MEM: /* source is memory */ - pr_debug( "%s: mem source, devaddr=%08lx, hwcfg=%d\n", - __FUNCTION__, devaddr, hwcfg); + pr_debug("%s: mem source, devaddr=%08lx, hwcfg=%d\n", + __func__, devaddr, hwcfg); dma_wrreg(chan, S3C2410_DMA_DISRCC, (0<<1) | (0<<0)); dma_wrreg(chan, S3C2410_DMA_DIDST, devaddr); dma_wrreg(chan, S3C2410_DMA_DIDSTC, hwcfg & 3); -- GitLab From 6bb68f8867348257e757de9c30ada4e90fe695d9 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Tue, 4 Mar 2008 15:08:02 -0800 Subject: [PATCH 587/923] [ARM] AT91: correct at91sam9263ek LCD power gpio pin Correct GPIO pin assignment for the LCD power control (PCI) Signed-off-by: Nicolas Ferre Cc: David Brownell Cc: Andrew Victor Signed-off-by: Andrew Morton Signed-off-by: Russell King --- arch/arm/mach-at91/board-sam9263ek.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c index 38313abef65..bf103b24c93 100644 --- a/arch/arm/mach-at91/board-sam9263ek.c +++ b/arch/arm/mach-at91/board-sam9263ek.c @@ -245,10 +245,7 @@ static struct fb_monspecs at91fb_default_monspecs = { static void at91_lcdc_power_control(int on) { - if (on) - at91_set_gpio_value(AT91_PIN_PD12, 0); /* power up */ - else - at91_set_gpio_value(AT91_PIN_PD12, 1); /* power down */ + at91_set_gpio_value(AT91_PIN_PA30, on); } /* Driver datas */ -- GitLab From 2ab42e24d63193d78f2e888a170b208f4776aaba Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Thu, 6 Mar 2008 10:57:54 +0000 Subject: [PATCH 588/923] Really unexport asm/page.h Commit ed7b1889da256977574663689b598d88950bbd23 removed page.h from include/asm-generic/Kbuild so that it shouldn't get exported. However, it was redundantly listed in asm-mn10300/Kbuild and asm-x86/Kbuild too. Remove those as well, so it really stops being exported on those architectures. Also remove the redundant listing of ptrace.h and termios.h from mn10300. Signed-off-by: David Woodhouse Acked-by: David Howells Signed-off-by: Linus Torvalds --- include/asm-mn10300/Kbuild | 4 ---- include/asm-x86/Kbuild | 1 - 2 files changed, 5 deletions(-) diff --git a/include/asm-mn10300/Kbuild b/include/asm-mn10300/Kbuild index 79384c537dc..c68e1680da0 100644 --- a/include/asm-mn10300/Kbuild +++ b/include/asm-mn10300/Kbuild @@ -1,5 +1 @@ include include/asm-generic/Kbuild.asm - -unifdef-y += termios.h -unifdef-y += ptrace.h -unifdef-y += page.h diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild index b04a7ff46df..3b8160a2b47 100644 --- a/include/asm-x86/Kbuild +++ b/include/asm-x86/Kbuild @@ -16,7 +16,6 @@ unifdef-y += ist.h unifdef-y += mce.h unifdef-y += msr.h unifdef-y += mtrr.h -unifdef-y += page.h unifdef-y += posix_types_32.h unifdef-y += posix_types_64.h unifdef-y += ptrace.h -- GitLab From cd3244e605efeb13bb3a6e92439974832e1c7388 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Wed, 5 Mar 2008 15:40:32 -0700 Subject: [PATCH 589/923] [IA64] remove CONFIG_SMP ifdef in ia64_send_ipi() When !CONFIG_SMP, cpu_physical_id() is ia64_get_lid(), which is functionally identical to (ia64_getreg(_IA64_REG_CR_LID) >> 16) & 0xffff so there's no need for two versions of this code. Signed-off-by: Bjorn Helgaas Signed-off-by: Tony Luck --- arch/ia64/kernel/irq_ia64.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 2b8cf6e85af..16472821d7a 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -666,11 +666,7 @@ ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect) unsigned long ipi_data; unsigned long phys_cpu_id; -#ifdef CONFIG_SMP phys_cpu_id = cpu_physical_id(cpu); -#else - phys_cpu_id = (ia64_getreg(_IA64_REG_CR_LID) >> 16) & 0xffff; -#endif /* * cpu number is in 8bit ID and 8bit EID -- GitLab From 2d9b06c72a9f2e6042d72df7d9000a48bcba34f0 Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Tue, 4 Mar 2008 15:45:42 -0800 Subject: [PATCH 590/923] [IA64] remove unnecessary nfs includes from sys_ia32.c Compilation of 2.6.25-rc2-mm1 on ia64 generates many warnings. IA64 support 2 ELF format (IA64 binary and IA32 binary), thus if 2 elf related header included, cause many warning or error. about 2 week ago, J. Bruce Fields proposed this problem fixed patch. (http://marc.info/?l=linux-ia64&m=120329313305695&w=2) Signed-off-by: J. Bruce Fields Signed-off-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/ia32/sys_ia32.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c index d025a22eb22..b1bf51fe97b 100644 --- a/arch/ia64/ia32/sys_ia32.c +++ b/arch/ia64/ia32/sys_ia32.c @@ -32,13 +32,8 @@ #include #include #include -#include +#include #include -#include -#include -#include -#include -#include #include #include #include -- GitLab From d4ed80841ad4a1d59decccfbe2d010558568c5fb Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Tue, 4 Mar 2008 15:15:00 -0800 Subject: [PATCH 591/923] [IA64] remove remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Long lines have been kept where they exist, some small spacing changes have been done. Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/hp/common/hwsw_iommu.c | 2 +- arch/ia64/hp/common/sba_iommu.c | 36 ++++----- arch/ia64/hp/sim/simeth.c | 2 +- arch/ia64/hp/sim/simserial.c | 2 +- arch/ia64/kernel/crash.c | 2 +- arch/ia64/kernel/efi.c | 6 +- arch/ia64/kernel/iosapic.c | 24 +++--- arch/ia64/kernel/irq_ia64.c | 4 +- arch/ia64/kernel/mca.c | 73 ++++++++--------- arch/ia64/kernel/module.c | 22 ++--- arch/ia64/kernel/perfmon.c | 4 +- arch/ia64/kernel/perfmon_default_smpl.c | 4 +- arch/ia64/kernel/ptrace.c | 4 +- arch/ia64/kernel/setup.c | 8 +- arch/ia64/kernel/unaligned.c | 6 +- arch/ia64/kernel/unwind.c | 102 ++++++++++++------------ arch/ia64/mm/init.c | 2 +- arch/ia64/pci/pci.c | 4 +- arch/ia64/sn/kernel/huberror.c | 4 +- arch/ia64/sn/kernel/io_acpi_init.c | 36 ++++----- arch/ia64/sn/kernel/io_common.c | 2 +- arch/ia64/sn/kernel/io_init.c | 4 +- arch/ia64/sn/kernel/mca.c | 2 +- arch/ia64/sn/pci/pci_dma.c | 6 +- arch/ia64/sn/pci/tioca_provider.c | 12 +-- arch/ia64/sn/pci/tioce_provider.c | 4 +- 26 files changed, 186 insertions(+), 191 deletions(-) diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c index 94e57109fad..8f6bcfe1dad 100644 --- a/arch/ia64/hp/common/hwsw_iommu.c +++ b/arch/ia64/hp/common/hwsw_iommu.c @@ -71,7 +71,7 @@ hwsw_init (void) #ifdef CONFIG_IA64_GENERIC /* Better to have normal DMA than panic */ printk(KERN_WARNING "%s: Failed to initialize software I/O TLB," - " reverting to hpzx1 platform vector\n", __FUNCTION__); + " reverting to hpzx1 platform vector\n", __func__); machvec_init("hpzx1"); #else panic("Unable to initialize software I/O TLB services"); diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index a94445422cc..523eae6d3e4 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -529,7 +529,7 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted, int use_hint) base_mask = RESMAP_MASK(bits_wanted); mask = base_mask << bitshiftcnt; - DBG_RES("%s() o %ld %p", __FUNCTION__, o, res_ptr); + DBG_RES("%s() o %ld %p", __func__, o, res_ptr); for(; res_ptr < res_end ; res_ptr++) { DBG_RES(" %p %lx %lx\n", res_ptr, mask, *res_ptr); @@ -679,7 +679,7 @@ sba_alloc_range(struct ioc *ioc, size_t size) #endif DBG_RES("%s(%x) %d -> %lx hint %x/%x\n", - __FUNCTION__, size, pages_needed, pide, + __func__, size, pages_needed, pide, (uint) ((unsigned long) ioc->res_hint - (unsigned long) ioc->res_map), ioc->res_bitshift ); @@ -722,8 +722,8 @@ sba_free_range(struct ioc *ioc, dma_addr_t iova, size_t size) m = RESMAP_MASK(bits_not_wanted) << (pide & (BITS_PER_LONG - 1)); bits_not_wanted = 0; - DBG_RES("%s( ,%x,%x) %x/%lx %x %p %lx\n", __FUNCTION__, (uint) iova, size, - bits_not_wanted, m, pide, res_ptr, *res_ptr); + DBG_RES("%s( ,%x,%x) %x/%lx %x %p %lx\n", __func__, (uint) iova, size, + bits_not_wanted, m, pide, res_ptr, *res_ptr); ASSERT(m != 0); ASSERT(bits_not_wanted); @@ -940,8 +940,7 @@ sba_map_single(struct device *dev, void *addr, size_t size, int dir) iovp = (dma_addr_t) pide << iovp_shift; - DBG_RUN("%s() 0x%p -> 0x%lx\n", - __FUNCTION__, addr, (long) iovp | offset); + DBG_RUN("%s() 0x%p -> 0x%lx\n", __func__, addr, (long) iovp | offset); pdir_start = &(ioc->pdir_base[pide]); @@ -1029,8 +1028,7 @@ void sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size, int dir) #endif offset = iova & ~iovp_mask; - DBG_RUN("%s() iovp 0x%lx/%x\n", - __FUNCTION__, (long) iova, size); + DBG_RUN("%s() iovp 0x%lx/%x\n", __func__, (long) iova, size); iova ^= offset; /* clear offset bits */ size += offset; @@ -1404,7 +1402,7 @@ int sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents, int di struct scatterlist *sg; #endif - DBG_RUN_SG("%s() START %d entries\n", __FUNCTION__, nents); + DBG_RUN_SG("%s() START %d entries\n", __func__, nents); ioc = GET_IOC(dev); ASSERT(ioc); @@ -1468,7 +1466,7 @@ int sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents, int di #endif ASSERT(coalesced == filled); - DBG_RUN_SG("%s() DONE %d mappings\n", __FUNCTION__, filled); + DBG_RUN_SG("%s() DONE %d mappings\n", __func__, filled); return filled; } @@ -1491,7 +1489,7 @@ void sba_unmap_sg (struct device *dev, struct scatterlist *sglist, int nents, in #endif DBG_RUN_SG("%s() START %d entries, %p,%x\n", - __FUNCTION__, nents, sba_sg_address(sglist), sglist->length); + __func__, nents, sba_sg_address(sglist), sglist->length); #ifdef ASSERT_PDIR_SANITY ioc = GET_IOC(dev); @@ -1509,7 +1507,7 @@ void sba_unmap_sg (struct device *dev, struct scatterlist *sglist, int nents, in nents--; } - DBG_RUN_SG("%s() DONE (nents %d)\n", __FUNCTION__, nents); + DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents); #ifdef ASSERT_PDIR_SANITY spin_lock_irqsave(&ioc->res_lock, flags); @@ -1546,7 +1544,7 @@ ioc_iova_init(struct ioc *ioc) ioc->iov_size = ~ioc->imask + 1; DBG_INIT("%s() hpa %p IOV base 0x%lx mask 0x%lx (%dMB)\n", - __FUNCTION__, ioc->ioc_hpa, ioc->ibase, ioc->imask, + __func__, ioc->ioc_hpa, ioc->ibase, ioc->imask, ioc->iov_size >> 20); switch (iovp_size) { @@ -1569,7 +1567,7 @@ ioc_iova_init(struct ioc *ioc) memset(ioc->pdir_base, 0, ioc->pdir_size); - DBG_INIT("%s() IOV page size %ldK pdir %p size %x\n", __FUNCTION__, + DBG_INIT("%s() IOV page size %ldK pdir %p size %x\n", __func__, iovp_size >> 10, ioc->pdir_base, ioc->pdir_size); ASSERT(ALIGN((unsigned long) ioc->pdir_base, 4*1024) == (unsigned long) ioc->pdir_base); @@ -1612,7 +1610,7 @@ ioc_iova_init(struct ioc *ioc) prefetch_spill_page = virt_to_phys(addr); - DBG_INIT("%s() prefetch spill addr: 0x%lx\n", __FUNCTION__, prefetch_spill_page); + DBG_INIT("%s() prefetch spill addr: 0x%lx\n", __func__, prefetch_spill_page); } /* ** Set all the PDIR entries valid w/ the spill page as the target @@ -1641,7 +1639,7 @@ ioc_resource_init(struct ioc *ioc) /* resource map size dictated by pdir_size */ ioc->res_size = ioc->pdir_size / PDIR_ENTRY_SIZE; /* entries */ ioc->res_size >>= 3; /* convert bit count to byte count */ - DBG_INIT("%s() res_size 0x%x\n", __FUNCTION__, ioc->res_size); + DBG_INIT("%s() res_size 0x%x\n", __func__, ioc->res_size); ioc->res_map = (char *) __get_free_pages(GFP_KERNEL, get_order(ioc->res_size)); @@ -1664,7 +1662,7 @@ ioc_resource_init(struct ioc *ioc) | prefetch_spill_page); #endif - DBG_INIT("%s() res_map %x %p\n", __FUNCTION__, + DBG_INIT("%s() res_map %x %p\n", __func__, ioc->res_size, (void *) ioc->res_map); } @@ -1767,7 +1765,7 @@ ioc_init(u64 hpa, void *handle) iovp_size = (1 << iovp_shift); iovp_mask = ~(iovp_size - 1); - DBG_INIT("%s: PAGE_SIZE %ldK, iovp_size %ldK\n", __FUNCTION__, + DBG_INIT("%s: PAGE_SIZE %ldK, iovp_size %ldK\n", __func__, PAGE_SIZE >> 10, iovp_size >> 10); if (!ioc->name) { @@ -2137,7 +2135,7 @@ sba_page_override(char *str) break; default: printk("%s: unknown/unsupported iommu page size %ld\n", - __FUNCTION__, page_size); + __func__, page_size); } return 1; diff --git a/arch/ia64/hp/sim/simeth.c b/arch/ia64/hp/sim/simeth.c index 9898febf609..969fe9f443c 100644 --- a/arch/ia64/hp/sim/simeth.c +++ b/arch/ia64/hp/sim/simeth.c @@ -222,7 +222,7 @@ simeth_probe1(void) } if ((rc = assign_irq_vector(AUTO_ASSIGN)) < 0) - panic("%s: out of interrupt vectors!\n", __FUNCTION__); + panic("%s: out of interrupt vectors!\n", __func__); dev->irq = rc; /* diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index ef252df50e1..eb0c32a85fd 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -1000,7 +1000,7 @@ simrs_init (void) if (!state->irq) { if ((rc = assign_irq_vector(AUTO_ASSIGN)) < 0) panic("%s: out of interrupt vectors!\n", - __FUNCTION__); + __func__); state->irq = rc; ia64_ssc_connect_irq(KEYBOARD_INTR, state->irq); } diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c index f1cf2df97a2..fbe742ad2fd 100644 --- a/arch/ia64/kernel/crash.c +++ b/arch/ia64/kernel/crash.c @@ -155,7 +155,7 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data) if (val == DIE_INIT_MONARCH_LEAVE) ia64_mca_printk(KERN_NOTICE "%s: kdump not configured\n", - __FUNCTION__); + __func__); return NOTIFY_DONE; } diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 919070a9aed..78f50e81cd9 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -379,8 +379,8 @@ efi_get_pal_addr (void) * a dedicated ITR for the PAL code. */ if ((vaddr & mask) == (KERNEL_START & mask)) { - printk(KERN_INFO "%s: no need to install ITR for " - "PAL code\n", __FUNCTION__); + printk(KERN_INFO "%s: no need to install ITR for PAL code\n", + __func__); continue; } @@ -399,7 +399,7 @@ efi_get_pal_addr (void) return __va(md->phys_addr); } printk(KERN_WARNING "%s: no PAL-code memory-descriptor found\n", - __FUNCTION__); + __func__); return NULL; } diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index 7b3292282de..082c31dcfd9 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -534,7 +534,7 @@ iosapic_reassign_vector (int irq) if (iosapic_intr_info[irq].count) { new_irq = create_irq(); if (new_irq < 0) - panic("%s: out of interrupt vectors!\n", __FUNCTION__); + panic("%s: out of interrupt vectors!\n", __func__); printk(KERN_INFO "Reassigning vector %d to %d\n", irq_to_vector(irq), irq_to_vector(new_irq)); memcpy(&iosapic_intr_info[new_irq], &iosapic_intr_info[irq], @@ -599,7 +599,7 @@ register_intr (unsigned int gsi, int irq, unsigned char delivery, index = find_iosapic(gsi); if (index < 0) { printk(KERN_WARNING "%s: No IOSAPIC for GSI %u\n", - __FUNCTION__, gsi); + __func__, gsi); return -ENODEV; } @@ -608,7 +608,7 @@ register_intr (unsigned int gsi, int irq, unsigned char delivery, rte = iosapic_alloc_rte(); if (!rte) { printk(KERN_WARNING "%s: cannot allocate memory\n", - __FUNCTION__); + __func__); return -ENOMEM; } @@ -625,7 +625,7 @@ register_intr (unsigned int gsi, int irq, unsigned char delivery, (info->trigger != trigger || info->polarity != polarity)){ printk (KERN_WARNING "%s: cannot override the interrupt\n", - __FUNCTION__); + __func__); return -EINVAL; } rte->refcnt++; @@ -647,7 +647,7 @@ register_intr (unsigned int gsi, int irq, unsigned char delivery, if (idesc->chip != &no_irq_type) printk(KERN_WARNING "%s: changing vector %d from %s to %s\n", - __FUNCTION__, irq_to_vector(irq), + __func__, irq_to_vector(irq), idesc->chip->name, irq_type->name); idesc->chip = irq_type; } @@ -920,7 +920,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi, case ACPI_INTERRUPT_INIT: irq = create_irq(); if (irq < 0) - panic("%s: out of interrupt vectors!\n", __FUNCTION__); + panic("%s: out of interrupt vectors!\n", __func__); vector = irq_to_vector(irq); delivery = IOSAPIC_INIT; break; @@ -931,7 +931,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi, mask = 1; break; default: - printk(KERN_ERR "%s: invalid int type 0x%x\n", __FUNCTION__, + printk(KERN_ERR "%s: invalid int type 0x%x\n", __func__, int_type); return -1; } @@ -996,7 +996,7 @@ iosapic_system_init (int system_pcat_compat) */ printk(KERN_INFO "%s: Disabling PC-AT compatible 8259 interrupts\n", - __FUNCTION__); + __func__); outb(0xff, 0xA1); outb(0xff, 0x21); } @@ -1011,7 +1011,7 @@ iosapic_alloc (void) if (!iosapic_lists[index].addr) return index; - printk(KERN_WARNING "%s: failed to allocate iosapic\n", __FUNCTION__); + printk(KERN_WARNING "%s: failed to allocate iosapic\n", __func__); return -1; } @@ -1109,14 +1109,14 @@ iosapic_remove (unsigned int gsi_base) index = find_iosapic(gsi_base); if (index < 0) { printk(KERN_WARNING "%s: No IOSAPIC for GSI base %u\n", - __FUNCTION__, gsi_base); + __func__, gsi_base); goto out; } if (iosapic_lists[index].rtes_inuse) { err = -EBUSY; printk(KERN_WARNING "%s: IOSAPIC for GSI base %u is busy\n", - __FUNCTION__, gsi_base); + __func__, gsi_base); goto out; } @@ -1137,7 +1137,7 @@ map_iosapic_to_node(unsigned int gsi_base, int node) index = find_iosapic(gsi_base); if (index < 0) { printk(KERN_WARNING "%s: No IOSAPIC for GSI %u\n", - __FUNCTION__, gsi_base); + __func__, gsi_base); return; } iosapic_lists[index].node = node; diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 16472821d7a..d8be23fbe6b 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -507,7 +507,7 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs) if (unlikely(irq < 0)) { printk(KERN_ERR "%s: Unexpected interrupt " "vector %d on CPU %d is not mapped " - "to any IRQ!\n", __FUNCTION__, vector, + "to any IRQ!\n", __func__, vector, smp_processor_id()); } else generic_handle_irq(irq); @@ -572,7 +572,7 @@ void ia64_process_pending_intr(void) if (unlikely(irq < 0)) { printk(KERN_ERR "%s: Unexpected interrupt " "vector %d on CPU %d not being mapped " - "to any IRQ!!\n", __FUNCTION__, vector, + "to any IRQ!!\n", __func__, vector, smp_processor_id()); } else { vectors_in_migration[irq]=0; diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 6e17aed5313..6c18221dba3 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -413,8 +413,8 @@ ia64_log_get(int sal_info_type, u8 **buffer, int irq_safe) IA64_LOG_INDEX_INC(sal_info_type); IA64_LOG_UNLOCK(sal_info_type); if (irq_safe) { - IA64_MCA_DEBUG("%s: SAL error record type %d retrieved. " - "Record length = %ld\n", __FUNCTION__, sal_info_type, total_len); + IA64_MCA_DEBUG("%s: SAL error record type %d retrieved. Record length = %ld\n", + __func__, sal_info_type, total_len); } *buffer = (u8 *) log_buffer; return total_len; @@ -518,7 +518,7 @@ ia64_mca_cpe_int_handler (int cpe_irq, void *arg) static DEFINE_SPINLOCK(cpe_history_lock); IA64_MCA_DEBUG("%s: received interrupt vector = %#x on CPU %d\n", - __FUNCTION__, cpe_irq, smp_processor_id()); + __func__, cpe_irq, smp_processor_id()); /* SAL spec states this should run w/ interrupts enabled */ local_irq_enable(); @@ -594,7 +594,7 @@ ia64_mca_register_cpev (int cpev) } IA64_MCA_DEBUG("%s: corrected platform error " - "vector %#x registered\n", __FUNCTION__, cpev); + "vector %#x registered\n", __func__, cpev); } #endif /* CONFIG_ACPI */ @@ -621,12 +621,11 @@ ia64_mca_cmc_vector_setup (void) cmcv.cmcv_vector = IA64_CMC_VECTOR; ia64_setreg(_IA64_REG_CR_CMCV, cmcv.cmcv_regval); - IA64_MCA_DEBUG("%s: CPU %d corrected " - "machine check vector %#x registered.\n", - __FUNCTION__, smp_processor_id(), IA64_CMC_VECTOR); + IA64_MCA_DEBUG("%s: CPU %d corrected machine check vector %#x registered.\n", + __func__, smp_processor_id(), IA64_CMC_VECTOR); IA64_MCA_DEBUG("%s: CPU %d CMCV = %#016lx\n", - __FUNCTION__, smp_processor_id(), ia64_getreg(_IA64_REG_CR_CMCV)); + __func__, smp_processor_id(), ia64_getreg(_IA64_REG_CR_CMCV)); } /* @@ -651,9 +650,8 @@ ia64_mca_cmc_vector_disable (void *dummy) cmcv.cmcv_mask = 1; /* Mask/disable interrupt */ ia64_setreg(_IA64_REG_CR_CMCV, cmcv.cmcv_regval); - IA64_MCA_DEBUG("%s: CPU %d corrected " - "machine check vector %#x disabled.\n", - __FUNCTION__, smp_processor_id(), cmcv.cmcv_vector); + IA64_MCA_DEBUG("%s: CPU %d corrected machine check vector %#x disabled.\n", + __func__, smp_processor_id(), cmcv.cmcv_vector); } /* @@ -678,9 +676,8 @@ ia64_mca_cmc_vector_enable (void *dummy) cmcv.cmcv_mask = 0; /* Unmask/enable interrupt */ ia64_setreg(_IA64_REG_CR_CMCV, cmcv.cmcv_regval); - IA64_MCA_DEBUG("%s: CPU %d corrected " - "machine check vector %#x enabled.\n", - __FUNCTION__, smp_processor_id(), cmcv.cmcv_vector); + IA64_MCA_DEBUG("%s: CPU %d corrected machine check vector %#x enabled.\n", + __func__, smp_processor_id(), cmcv.cmcv_vector); } /* @@ -767,7 +764,7 @@ ia64_mca_rendez_int_handler(int rendez_irq, void *arg) local_irq_save(flags); if (notify_die(DIE_MCA_RENDZVOUS_ENTER, "MCA", get_irq_regs(), (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_DONE; /* Register with the SAL monarch that the slave has @@ -777,7 +774,7 @@ ia64_mca_rendez_int_handler(int rendez_irq, void *arg) if (notify_die(DIE_MCA_RENDZVOUS_PROCESS, "MCA", get_irq_regs(), (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); /* Wait for the monarch cpu to exit. */ while (monarch_cpu != -1) @@ -785,7 +782,7 @@ ia64_mca_rendez_int_handler(int rendez_irq, void *arg) if (notify_die(DIE_MCA_RENDZVOUS_LEAVE, "MCA", get_irq_regs(), (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE; /* Enable all interrupts */ @@ -1230,7 +1227,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw, if (notify_die(DIE_MCA_MONARCH_ENTER, "MCA", regs, (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_CONCURRENT_MCA; if (sos->monarch) { @@ -1246,7 +1243,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw, ia64_mca_wakeup_all(); if (notify_die(DIE_MCA_MONARCH_PROCESS, "MCA", regs, (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); } else { while (cpu_isset(cpu, mca_cpu)) cpu_relax(); /* spin until monarch wakes us */ @@ -1276,7 +1273,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw, } if (notify_die(DIE_MCA_MONARCH_LEAVE, "MCA", regs, (long)&nd, 0, recover) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); if (atomic_dec_return(&mca_count) > 0) { @@ -1328,7 +1325,7 @@ ia64_mca_cmc_int_handler(int cmc_irq, void *arg) static DEFINE_SPINLOCK(cmc_history_lock); IA64_MCA_DEBUG("%s: received interrupt vector = %#x on CPU %d\n", - __FUNCTION__, cmc_irq, smp_processor_id()); + __func__, cmc_irq, smp_processor_id()); /* SAL spec states this should run w/ interrupts enabled */ local_irq_enable(); @@ -1614,7 +1611,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw, */ if (!sos->monarch && atomic_add_return(1, &slaves) == num_online_cpus()) { mprintk(KERN_WARNING "%s: Promoting cpu %d to monarch.\n", - __FUNCTION__, cpu); + __func__, cpu); atomic_dec(&slaves); sos->monarch = 1; } @@ -1626,7 +1623,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw, */ if (sos->monarch && atomic_add_return(1, &monarchs) > 1) { mprintk(KERN_WARNING "%s: Demoting cpu %d to slave.\n", - __FUNCTION__, cpu); + __func__, cpu); atomic_dec(&monarchs); sos->monarch = 0; } @@ -1637,15 +1634,15 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw, cpu_relax(); /* spin until monarch enters */ if (notify_die(DIE_INIT_SLAVE_ENTER, "INIT", regs, (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); if (notify_die(DIE_INIT_SLAVE_PROCESS, "INIT", regs, (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); while (monarch_cpu != -1) cpu_relax(); /* spin until monarch leaves */ if (notify_die(DIE_INIT_SLAVE_LEAVE, "INIT", regs, (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); mprintk("Slave on cpu %d returning to normal service.\n", cpu); set_curr_task(cpu, previous_current); ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE; @@ -1656,7 +1653,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw, monarch_cpu = cpu; if (notify_die(DIE_INIT_MONARCH_ENTER, "INIT", regs, (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); /* * Wait for a bit. On some machines (e.g., HP's zx2000 and zx6000, INIT can be @@ -1673,10 +1670,10 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw, */ if (notify_die(DIE_INIT_MONARCH_PROCESS, "INIT", regs, (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); if (notify_die(DIE_INIT_MONARCH_LEAVE, "INIT", regs, (long)&nd, 0, 0) == NOTIFY_STOP) - ia64_mca_spin(__FUNCTION__); + ia64_mca_spin(__func__); mprintk("\nINIT dump complete. Monarch on cpu %d returning to normal service.\n", cpu); atomic_dec(&monarchs); set_curr_task(cpu, previous_current); @@ -1884,7 +1881,7 @@ ia64_mca_init(void) .priority = 0/* we need to notified last */ }; - IA64_MCA_DEBUG("%s: begin\n", __FUNCTION__); + IA64_MCA_DEBUG("%s: begin\n", __func__); /* Clear the Rendez checkin flag for all cpus */ for(i = 0 ; i < NR_CPUS; i++) @@ -1928,7 +1925,7 @@ ia64_mca_init(void) return; } - IA64_MCA_DEBUG("%s: registered MCA rendezvous spinloop and wakeup mech.\n", __FUNCTION__); + IA64_MCA_DEBUG("%s: registered MCA rendezvous spinloop and wakeup mech.\n", __func__); ia64_mc_info.imi_mca_handler = ia64_tpa(mca_hldlr_ptr->fp); /* @@ -1949,7 +1946,7 @@ ia64_mca_init(void) return; } - IA64_MCA_DEBUG("%s: registered OS MCA handler with SAL at 0x%lx, gp = 0x%lx\n", __FUNCTION__, + IA64_MCA_DEBUG("%s: registered OS MCA handler with SAL at 0x%lx, gp = 0x%lx\n", __func__, ia64_mc_info.imi_mca_handler, ia64_tpa(mca_hldlr_ptr->gp)); /* @@ -1961,7 +1958,7 @@ ia64_mca_init(void) ia64_mc_info.imi_slave_init_handler = ia64_tpa(init_hldlr_ptr_slave->fp); ia64_mc_info.imi_slave_init_handler_size = 0; - IA64_MCA_DEBUG("%s: OS INIT handler at %lx\n", __FUNCTION__, + IA64_MCA_DEBUG("%s: OS INIT handler at %lx\n", __func__, ia64_mc_info.imi_monarch_init_handler); /* Register the os init handler with SAL */ @@ -1982,7 +1979,7 @@ ia64_mca_init(void) return; } - IA64_MCA_DEBUG("%s: registered OS INIT handler with SAL\n", __FUNCTION__); + IA64_MCA_DEBUG("%s: registered OS INIT handler with SAL\n", __func__); /* * Configure the CMCI/P vector and handler. Interrupts for CMC are @@ -2042,7 +2039,7 @@ ia64_mca_late_init(void) cmc_polling_enabled = 0; schedule_work(&cmc_enable_work); - IA64_MCA_DEBUG("%s: CMCI/P setup and enabled.\n", __FUNCTION__); + IA64_MCA_DEBUG("%s: CMCI/P setup and enabled.\n", __func__); #ifdef CONFIG_ACPI /* Setup the CPEI/P vector and handler */ @@ -2065,17 +2062,17 @@ ia64_mca_late_init(void) ia64_cpe_irq = irq; ia64_mca_register_cpev(cpe_vector); IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n", - __FUNCTION__); + __func__); return 0; } printk(KERN_ERR "%s: Failed to find irq for CPE " "interrupt handler, vector %d\n", - __FUNCTION__, cpe_vector); + __func__, cpe_vector); } /* If platform doesn't support CPEI, get the timer going. */ if (cpe_poll_enabled) { ia64_mca_cpe_poll(0UL); - IA64_MCA_DEBUG("%s: CPEP setup and enabled.\n", __FUNCTION__); + IA64_MCA_DEBUG("%s: CPEP setup and enabled.\n", __func__); } } #endif diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c index e58f4367cf1..e83e2ea3b3e 100644 --- a/arch/ia64/kernel/module.c +++ b/arch/ia64/kernel/module.c @@ -493,7 +493,7 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings, mod->arch.opd->sh_addralign = 8; mod->arch.opd->sh_size = fdescs * sizeof(struct fdesc); DEBUGP("%s: core.plt=%lx, init.plt=%lx, got=%lx, fdesc=%lx\n", - __FUNCTION__, mod->arch.core_plt->sh_size, mod->arch.init_plt->sh_size, + __func__, mod->arch.core_plt->sh_size, mod->arch.init_plt->sh_size, mod->arch.got->sh_size, mod->arch.opd->sh_size); return 0; } @@ -585,7 +585,7 @@ get_plt (struct module *mod, const struct insn *insn, uint64_t value, int *okp) #if ARCH_MODULE_DEBUG if (plt_target(plt) != target_ip) { printk("%s: mistargeted PLT: wanted %lx, got %lx\n", - __FUNCTION__, target_ip, plt_target(plt)); + __func__, target_ip, plt_target(plt)); *okp = 0; return 0; } @@ -703,7 +703,7 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend, if (r_type == R_IA64_PCREL21BI) { if (!is_internal(mod, val)) { printk(KERN_ERR "%s: %s reloc against non-local symbol (%lx)\n", - __FUNCTION__, reloc_name[r_type], val); + __func__, reloc_name[r_type], val); return -ENOEXEC; } format = RF_INSN21B; @@ -737,7 +737,7 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend, case R_IA64_LDXMOV: if (gp_addressable(mod, val)) { /* turn "ld8" into "mov": */ - DEBUGP("%s: patching ld8 at %p to mov\n", __FUNCTION__, location); + DEBUGP("%s: patching ld8 at %p to mov\n", __func__, location); ia64_patch((u64) location, 0x1fff80fe000UL, 0x10000000000UL); } return 0; @@ -771,7 +771,7 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend, if (!ok) return -ENOEXEC; - DEBUGP("%s: [%p]<-%016lx = %s(%lx)\n", __FUNCTION__, location, val, + DEBUGP("%s: [%p]<-%016lx = %s(%lx)\n", __func__, location, val, reloc_name[r_type] ? reloc_name[r_type] : "?", sym->st_value + addend); switch (format) { @@ -807,7 +807,7 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind Elf64_Shdr *target_sec; int ret; - DEBUGP("%s: applying section %u (%u relocs) to %u\n", __FUNCTION__, + DEBUGP("%s: applying section %u (%u relocs) to %u\n", __func__, relsec, n, sechdrs[relsec].sh_info); target_sec = sechdrs + sechdrs[relsec].sh_info; @@ -835,7 +835,7 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind gp = mod->core_size / 2; gp = (uint64_t) mod->module_core + ((gp + 7) & -8); mod->arch.gp = gp; - DEBUGP("%s: placing gp at 0x%lx\n", __FUNCTION__, gp); + DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp); } for (i = 0; i < n; i++) { @@ -903,7 +903,7 @@ register_unwind_table (struct module *mod) init = start + num_core; } - DEBUGP("%s: name=%s, gp=%lx, num_init=%lu, num_core=%lu\n", __FUNCTION__, + DEBUGP("%s: name=%s, gp=%lx, num_init=%lu, num_core=%lu\n", __func__, mod->name, mod->arch.gp, num_init, num_core); /* @@ -912,13 +912,13 @@ register_unwind_table (struct module *mod) if (num_core > 0) { mod->arch.core_unw_table = unw_add_unwind_table(mod->name, 0, mod->arch.gp, core, core + num_core); - DEBUGP("%s: core: handle=%p [%p-%p)\n", __FUNCTION__, + DEBUGP("%s: core: handle=%p [%p-%p)\n", __func__, mod->arch.core_unw_table, core, core + num_core); } if (num_init > 0) { mod->arch.init_unw_table = unw_add_unwind_table(mod->name, 0, mod->arch.gp, init, init + num_init); - DEBUGP("%s: init: handle=%p [%p-%p)\n", __FUNCTION__, + DEBUGP("%s: init: handle=%p [%p-%p)\n", __func__, mod->arch.init_unw_table, init, init + num_init); } } @@ -926,7 +926,7 @@ register_unwind_table (struct module *mod) int module_finalize (const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *mod) { - DEBUGP("%s: init: entry=%p\n", __FUNCTION__, mod->init); + DEBUGP("%s: init: entry=%p\n", __func__, mod->init); if (mod->arch.unwind) register_unwind_table(mod); return 0; diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index f6b99719f10..a2aabfdc80d 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -227,12 +227,12 @@ #ifdef PFM_DEBUGGING #define DPRINT(a) \ do { \ - if (unlikely(pfm_sysctl.debug >0)) { printk("%s.%d: CPU%d [%d] ", __FUNCTION__, __LINE__, smp_processor_id(), task_pid_nr(current)); printk a; } \ + if (unlikely(pfm_sysctl.debug >0)) { printk("%s.%d: CPU%d [%d] ", __func__, __LINE__, smp_processor_id(), task_pid_nr(current)); printk a; } \ } while (0) #define DPRINT_ovfl(a) \ do { \ - if (unlikely(pfm_sysctl.debug > 0 && pfm_sysctl.debug_ovfl >0)) { printk("%s.%d: CPU%d [%d] ", __FUNCTION__, __LINE__, smp_processor_id(), task_pid_nr(current)); printk a; } \ + if (unlikely(pfm_sysctl.debug > 0 && pfm_sysctl.debug_ovfl >0)) { printk("%s.%d: CPU%d [%d] ", __func__, __LINE__, smp_processor_id(), task_pid_nr(current)); printk a; } \ } while (0) #endif diff --git a/arch/ia64/kernel/perfmon_default_smpl.c b/arch/ia64/kernel/perfmon_default_smpl.c index a7af1cb419f..5f637bbfccc 100644 --- a/arch/ia64/kernel/perfmon_default_smpl.c +++ b/arch/ia64/kernel/perfmon_default_smpl.c @@ -24,12 +24,12 @@ MODULE_LICENSE("GPL"); #ifdef DEFAULT_DEBUG #define DPRINT(a) \ do { \ - if (unlikely(pfm_sysctl.debug >0)) { printk("%s.%d: CPU%d ", __FUNCTION__, __LINE__, smp_processor_id()); printk a; } \ + if (unlikely(pfm_sysctl.debug >0)) { printk("%s.%d: CPU%d ", __func__, __LINE__, smp_processor_id()); printk a; } \ } while (0) #define DPRINT_ovfl(a) \ do { \ - if (unlikely(pfm_sysctl.debug > 0 && pfm_sysctl.debug_ovfl >0)) { printk("%s.%d: CPU%d ", __FUNCTION__, __LINE__, smp_processor_id()); printk a; } \ + if (unlikely(pfm_sysctl.debug > 0 && pfm_sysctl.debug_ovfl >0)) { printk("%s.%d: CPU%d ", __func__, __LINE__, smp_processor_id()); printk a; } \ } while (0) #else diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 7e0d7dcac1a..ab784ec4319 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -780,14 +780,14 @@ convert_to_non_syscall (struct task_struct *child, struct pt_regs *pt, if ((long)((unsigned long)child + IA64_STK_OFFSET - sp) < IA64_PT_REGS_SIZE) { dprintk("ptrace.%s: ran off the top of the kernel " - "stack\n", __FUNCTION__); + "stack\n", __func__); return; } if (unw_get_pr (&prev_info, &pr) < 0) { unw_get_rp(&prev_info, &ip); dprintk("ptrace.%s: failed to read " "predicate register (ip=0x%lx)\n", - __FUNCTION__, ip); + __func__, ip); return; } if (unw_is_intr_frame(&info) diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index ebd1a09f320..4aa9eaea76c 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -690,7 +690,7 @@ get_model_name(__u8 family, __u8 model) if (overflow++ == 0) printk(KERN_ERR "%s: Table overflow. Some processor model information will be missing\n", - __FUNCTION__); + __func__); return "Unknown"; } @@ -785,7 +785,7 @@ get_max_cacheline_size (void) status = ia64_pal_cache_summary(&levels, &unique_caches); if (status != 0) { printk(KERN_ERR "%s: ia64_pal_cache_summary() failed (status=%ld)\n", - __FUNCTION__, status); + __func__, status); max = SMP_CACHE_BYTES; /* Safest setup for "flush_icache_range()" */ ia64_i_cache_stride_shift = I_CACHE_STRIDE_SHIFT; @@ -798,7 +798,7 @@ get_max_cacheline_size (void) if (status != 0) { printk(KERN_ERR "%s: ia64_pal_cache_config_info(l=%lu, 2) failed (status=%ld)\n", - __FUNCTION__, l, status); + __func__, l, status); max = SMP_CACHE_BYTES; /* The safest setup for "flush_icache_range()" */ cci.pcci_stride = I_CACHE_STRIDE_SHIFT; @@ -814,7 +814,7 @@ get_max_cacheline_size (void) if (status != 0) { printk(KERN_ERR "%s: ia64_pal_cache_config_info(l=%lu, 1) failed (status=%ld)\n", - __FUNCTION__, l, status); + __func__, l, status); /* The safest setup for "flush_icache_range()" */ cci.pcci_stride = I_CACHE_STRIDE_SHIFT; } diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c index 52f70bbc192..6903361d11a 100644 --- a/arch/ia64/kernel/unaligned.c +++ b/arch/ia64/kernel/unaligned.c @@ -28,7 +28,7 @@ extern int die_if_kernel(char *str, struct pt_regs *regs, long err); #undef DEBUG_UNALIGNED_TRAP #ifdef DEBUG_UNALIGNED_TRAP -# define DPRINT(a...) do { printk("%s %u: ", __FUNCTION__, __LINE__); printk (a); } while (0) +# define DPRINT(a...) do { printk("%s %u: ", __func__, __LINE__); printk (a); } while (0) # define DDUMP(str,vp,len) dump(str, vp, len) static void @@ -674,7 +674,7 @@ emulate_load_updates (update_t type, load_store_t ld, struct pt_regs *regs, unsi * just in case. */ if (ld.x6_op == 1 || ld.x6_op == 3) { - printk(KERN_ERR "%s: register update on speculative load, error\n", __FUNCTION__); + printk(KERN_ERR "%s: register update on speculative load, error\n", __func__); if (die_if_kernel("unaligned reference on speculative load with register update\n", regs, 30)) return; @@ -1104,7 +1104,7 @@ emulate_load_floatpair (unsigned long ifa, load_store_t ld, struct pt_regs *regs */ if (ld.x6_op == 1 || ld.x6_op == 3) printk(KERN_ERR "%s: register update on speculative load pair, error\n", - __FUNCTION__); + __func__); setreg(ld.r3, ifa, 0, regs); } diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c index c1bdb513181..67810b77d99 100644 --- a/arch/ia64/kernel/unwind.c +++ b/arch/ia64/kernel/unwind.c @@ -257,7 +257,7 @@ pt_regs_off (unsigned long reg) off = unw.pt_regs_offsets[reg]; if (off < 0) { - UNW_DPRINT(0, "unwind.%s: bad scratch reg r%lu\n", __FUNCTION__, reg); + UNW_DPRINT(0, "unwind.%s: bad scratch reg r%lu\n", __func__, reg); off = 0; } return (unsigned long) off; @@ -268,13 +268,13 @@ get_scratch_regs (struct unw_frame_info *info) { if (!info->pt) { /* This should not happen with valid unwind info. */ - UNW_DPRINT(0, "unwind.%s: bad unwind info: resetting info->pt\n", __FUNCTION__); + UNW_DPRINT(0, "unwind.%s: bad unwind info: resetting info->pt\n", __func__); if (info->flags & UNW_FLAG_INTERRUPT_FRAME) info->pt = (unsigned long) ((struct pt_regs *) info->psp - 1); else info->pt = info->sp - 16; } - UNW_DPRINT(3, "unwind.%s: sp 0x%lx pt 0x%lx\n", __FUNCTION__, info->sp, info->pt); + UNW_DPRINT(3, "unwind.%s: sp 0x%lx pt 0x%lx\n", __func__, info->sp, info->pt); return (struct pt_regs *) info->pt; } @@ -294,7 +294,7 @@ unw_access_gr (struct unw_frame_info *info, int regnum, unsigned long *val, char return 0; } UNW_DPRINT(0, "unwind.%s: trying to access non-existent r%u\n", - __FUNCTION__, regnum); + __func__, regnum); return -1; } @@ -341,7 +341,7 @@ unw_access_gr (struct unw_frame_info *info, int regnum, unsigned long *val, char { UNW_DPRINT(0, "unwind.%s: %p outside of regstk " "[0x%lx-0x%lx)\n", - __FUNCTION__, (void *) addr, + __func__, (void *) addr, info->regstk.limit, info->regstk.top); return -1; @@ -374,7 +374,7 @@ unw_access_gr (struct unw_frame_info *info, int regnum, unsigned long *val, char || (unsigned long) addr >= info->regstk.top) { UNW_DPRINT(0, "unwind.%s: ignoring attempt to access register outside " - "of rbs\n", __FUNCTION__); + "of rbs\n", __func__); return -1; } if ((unsigned long) nat_addr >= info->regstk.top) @@ -385,7 +385,7 @@ unw_access_gr (struct unw_frame_info *info, int regnum, unsigned long *val, char if (write) { if (read_only(addr)) { UNW_DPRINT(0, "unwind.%s: ignoring attempt to write read-only location\n", - __FUNCTION__); + __func__); } else { *addr = *val; if (*nat) @@ -427,13 +427,13 @@ unw_access_br (struct unw_frame_info *info, int regnum, unsigned long *val, int default: UNW_DPRINT(0, "unwind.%s: trying to access non-existent b%u\n", - __FUNCTION__, regnum); + __func__, regnum); return -1; } if (write) if (read_only(addr)) { UNW_DPRINT(0, "unwind.%s: ignoring attempt to write read-only location\n", - __FUNCTION__); + __func__); } else *addr = *val; else @@ -450,7 +450,7 @@ unw_access_fr (struct unw_frame_info *info, int regnum, struct ia64_fpreg *val, if ((unsigned) (regnum - 2) >= 126) { UNW_DPRINT(0, "unwind.%s: trying to access non-existent f%u\n", - __FUNCTION__, regnum); + __func__, regnum); return -1; } @@ -482,7 +482,7 @@ unw_access_fr (struct unw_frame_info *info, int regnum, struct ia64_fpreg *val, if (write) if (read_only(addr)) { UNW_DPRINT(0, "unwind.%s: ignoring attempt to write read-only location\n", - __FUNCTION__); + __func__); } else *addr = *val; else @@ -572,14 +572,14 @@ unw_access_ar (struct unw_frame_info *info, int regnum, unsigned long *val, int default: UNW_DPRINT(0, "unwind.%s: trying to access non-existent ar%u\n", - __FUNCTION__, regnum); + __func__, regnum); return -1; } if (write) { if (read_only(addr)) { UNW_DPRINT(0, "unwind.%s: ignoring attempt to write read-only location\n", - __FUNCTION__); + __func__); } else *addr = *val; } else @@ -600,7 +600,7 @@ unw_access_pr (struct unw_frame_info *info, unsigned long *val, int write) if (write) { if (read_only(addr)) { UNW_DPRINT(0, "unwind.%s: ignoring attempt to write read-only location\n", - __FUNCTION__); + __func__); } else *addr = *val; } else @@ -699,7 +699,7 @@ decode_abreg (unsigned char abreg, int memory) default: break; } - UNW_DPRINT(0, "unwind.%s: bad abreg=0x%x\n", __FUNCTION__, abreg); + UNW_DPRINT(0, "unwind.%s: bad abreg=0x%x\n", __func__, abreg); return UNW_REG_LC; } @@ -739,7 +739,7 @@ spill_next_when (struct unw_reg_info **regp, struct unw_reg_info *lim, unw_word return; } } - UNW_DPRINT(0, "unwind.%s: excess spill!\n", __FUNCTION__); + UNW_DPRINT(0, "unwind.%s: excess spill!\n", __func__); } static inline void @@ -855,11 +855,11 @@ desc_abi (unsigned char abi, unsigned char context, struct unw_state_record *sr) { if (abi == 3 && context == 'i') { sr->flags |= UNW_FLAG_INTERRUPT_FRAME; - UNW_DPRINT(3, "unwind.%s: interrupt frame\n", __FUNCTION__); + UNW_DPRINT(3, "unwind.%s: interrupt frame\n", __func__); } else UNW_DPRINT(0, "unwind%s: ignoring unwabi(abi=0x%x,context=0x%x)\n", - __FUNCTION__, abi, context); + __func__, abi, context); } static inline void @@ -1347,7 +1347,7 @@ script_emit (struct unw_script *script, struct unw_insn insn) { if (script->count >= UNW_MAX_SCRIPT_LEN) { UNW_DPRINT(0, "unwind.%s: script exceeds maximum size of %u instructions!\n", - __FUNCTION__, UNW_MAX_SCRIPT_LEN); + __func__, UNW_MAX_SCRIPT_LEN); return; } script->insn[script->count++] = insn; @@ -1389,7 +1389,7 @@ emit_nat_info (struct unw_state_record *sr, int i, struct unw_script *script) default: UNW_DPRINT(0, "unwind.%s: don't know how to emit nat info for where = %u\n", - __FUNCTION__, r->where); + __func__, r->where); return; } insn.opc = opc; @@ -1446,7 +1446,7 @@ compile_reg (struct unw_state_record *sr, int i, struct unw_script *script) val = offsetof(struct pt_regs, f6) + 16*(rval - 6); else UNW_DPRINT(0, "unwind.%s: kernel may not touch f%lu\n", - __FUNCTION__, rval); + __func__, rval); } break; @@ -1474,7 +1474,7 @@ compile_reg (struct unw_state_record *sr, int i, struct unw_script *script) default: UNW_DPRINT(0, "unwind%s: register %u has unexpected `where' value of %u\n", - __FUNCTION__, i, r->where); + __func__, i, r->where); break; } insn.opc = opc; @@ -1547,10 +1547,10 @@ build_script (struct unw_frame_info *info) r->when = UNW_WHEN_NEVER; sr.pr_val = info->pr; - UNW_DPRINT(3, "unwind.%s: ip 0x%lx\n", __FUNCTION__, ip); + UNW_DPRINT(3, "unwind.%s: ip 0x%lx\n", __func__, ip); script = script_new(ip); if (!script) { - UNW_DPRINT(0, "unwind.%s: failed to create unwind script\n", __FUNCTION__); + UNW_DPRINT(0, "unwind.%s: failed to create unwind script\n", __func__); STAT(unw.stat.script.build_time += ia64_get_itc() - start); return NULL; } @@ -1569,7 +1569,7 @@ build_script (struct unw_frame_info *info) if (!e) { /* no info, return default unwinder (leaf proc, no mem stack, no saved regs) */ UNW_DPRINT(1, "unwind.%s: no unwind info for ip=0x%lx (prev ip=0x%lx)\n", - __FUNCTION__, ip, unw.cache[info->prev_script].ip); + __func__, ip, unw.cache[info->prev_script].ip); sr.curr.reg[UNW_REG_RP].where = UNW_WHERE_BR; sr.curr.reg[UNW_REG_RP].when = -1; sr.curr.reg[UNW_REG_RP].val = 0; @@ -1618,13 +1618,13 @@ build_script (struct unw_frame_info *info) sr.curr.reg[UNW_REG_RP].when = -1; sr.curr.reg[UNW_REG_RP].val = sr.return_link_reg; UNW_DPRINT(1, "unwind.%s: using default for rp at ip=0x%lx where=%d val=0x%lx\n", - __FUNCTION__, ip, sr.curr.reg[UNW_REG_RP].where, + __func__, ip, sr.curr.reg[UNW_REG_RP].where, sr.curr.reg[UNW_REG_RP].val); } #ifdef UNW_DEBUG UNW_DPRINT(1, "unwind.%s: state record for func 0x%lx, t=%u:\n", - __FUNCTION__, table->segment_base + e->start_offset, sr.when_target); + __func__, table->segment_base + e->start_offset, sr.when_target); for (r = sr.curr.reg; r < sr.curr.reg + UNW_NUM_REGS; ++r) { if (r->where != UNW_WHERE_NONE || r->when != UNW_WHEN_NEVER) { UNW_DPRINT(1, " %s <- ", unw.preg_name[r - sr.curr.reg]); @@ -1746,7 +1746,7 @@ run_script (struct unw_script *script, struct unw_frame_info *state) } else { s[dst] = 0; UNW_DPRINT(0, "unwind.%s: no state->pt, dst=%ld, val=%ld\n", - __FUNCTION__, dst, val); + __func__, dst, val); } break; @@ -1756,7 +1756,7 @@ run_script (struct unw_script *script, struct unw_frame_info *state) else { s[dst] = 0; UNW_DPRINT(0, "unwind.%s: UNW_INSN_MOVE_CONST bad val=%ld\n", - __FUNCTION__, val); + __func__, val); } break; @@ -1791,7 +1791,7 @@ run_script (struct unw_script *script, struct unw_frame_info *state) || s[val] < TASK_SIZE) { UNW_DPRINT(0, "unwind.%s: rejecting bad psp=0x%lx\n", - __FUNCTION__, s[val]); + __func__, s[val]); break; } #endif @@ -1825,7 +1825,7 @@ find_save_locs (struct unw_frame_info *info) if ((info->ip & (local_cpu_data->unimpl_va_mask | 0xf)) || info->ip < TASK_SIZE) { /* don't let obviously bad addresses pollute the cache */ /* FIXME: should really be level 0 but it occurs too often. KAO */ - UNW_DPRINT(1, "unwind.%s: rejecting bad ip=0x%lx\n", __FUNCTION__, info->ip); + UNW_DPRINT(1, "unwind.%s: rejecting bad ip=0x%lx\n", __func__, info->ip); info->rp_loc = NULL; return -1; } @@ -1838,7 +1838,7 @@ find_save_locs (struct unw_frame_info *info) spin_unlock_irqrestore(&unw.lock, flags); UNW_DPRINT(0, "unwind.%s: failed to locate/build unwind script for ip %lx\n", - __FUNCTION__, info->ip); + __func__, info->ip); return -1; } have_write_lock = 1; @@ -1882,21 +1882,21 @@ unw_unwind (struct unw_frame_info *info) if (!unw_valid(info, info->rp_loc)) { /* FIXME: should really be level 0 but it occurs too often. KAO */ UNW_DPRINT(1, "unwind.%s: failed to locate return link (ip=0x%lx)!\n", - __FUNCTION__, info->ip); + __func__, info->ip); STAT(unw.stat.api.unwind_time += ia64_get_itc() - start; local_irq_restore(flags)); return -1; } /* restore the ip */ ip = info->ip = *info->rp_loc; if (ip < GATE_ADDR) { - UNW_DPRINT(2, "unwind.%s: reached user-space (ip=0x%lx)\n", __FUNCTION__, ip); + UNW_DPRINT(2, "unwind.%s: reached user-space (ip=0x%lx)\n", __func__, ip); STAT(unw.stat.api.unwind_time += ia64_get_itc() - start; local_irq_restore(flags)); return -1; } /* validate the previous stack frame pointer */ if (!unw_valid(info, info->pfs_loc)) { - UNW_DPRINT(0, "unwind.%s: failed to locate ar.pfs!\n", __FUNCTION__); + UNW_DPRINT(0, "unwind.%s: failed to locate ar.pfs!\n", __func__); STAT(unw.stat.api.unwind_time += ia64_get_itc() - start; local_irq_restore(flags)); return -1; } @@ -1912,13 +1912,13 @@ unw_unwind (struct unw_frame_info *info) num_regs = *info->cfm_loc & 0x7f; /* size of frame */ info->pfs_loc = (unsigned long *) (info->pt + offsetof(struct pt_regs, ar_pfs)); - UNW_DPRINT(3, "unwind.%s: interrupt_frame pt 0x%lx\n", __FUNCTION__, info->pt); + UNW_DPRINT(3, "unwind.%s: interrupt_frame pt 0x%lx\n", __func__, info->pt); } else num_regs = (*info->cfm_loc >> 7) & 0x7f; /* size of locals */ info->bsp = (unsigned long) ia64_rse_skip_regs((unsigned long *) info->bsp, -num_regs); if (info->bsp < info->regstk.limit || info->bsp > info->regstk.top) { UNW_DPRINT(0, "unwind.%s: bsp (0x%lx) out of range [0x%lx-0x%lx]\n", - __FUNCTION__, info->bsp, info->regstk.limit, info->regstk.top); + __func__, info->bsp, info->regstk.limit, info->regstk.top); STAT(unw.stat.api.unwind_time += ia64_get_itc() - start; local_irq_restore(flags)); return -1; } @@ -1927,14 +1927,14 @@ unw_unwind (struct unw_frame_info *info) info->sp = info->psp; if (info->sp < info->memstk.top || info->sp > info->memstk.limit) { UNW_DPRINT(0, "unwind.%s: sp (0x%lx) out of range [0x%lx-0x%lx]\n", - __FUNCTION__, info->sp, info->memstk.top, info->memstk.limit); + __func__, info->sp, info->memstk.top, info->memstk.limit); STAT(unw.stat.api.unwind_time += ia64_get_itc() - start; local_irq_restore(flags)); return -1; } if (info->ip == prev_ip && info->sp == prev_sp && info->bsp == prev_bsp) { UNW_DPRINT(0, "unwind.%s: ip, sp, bsp unchanged; stopping here (ip=0x%lx)\n", - __FUNCTION__, ip); + __func__, ip); STAT(unw.stat.api.unwind_time += ia64_get_itc() - start; local_irq_restore(flags)); return -1; } @@ -1961,7 +1961,7 @@ unw_unwind_to_user (struct unw_frame_info *info) if ((long)((unsigned long)info->task + IA64_STK_OFFSET - sp) < IA64_PT_REGS_SIZE) { UNW_DPRINT(0, "unwind.%s: ran off the top of the kernel stack\n", - __FUNCTION__); + __func__); break; } if (unw_is_intr_frame(info) && @@ -1971,13 +1971,13 @@ unw_unwind_to_user (struct unw_frame_info *info) unw_get_rp(info, &ip); UNW_DPRINT(0, "unwind.%s: failed to read " "predicate register (ip=0x%lx)\n", - __FUNCTION__, ip); + __func__, ip); return -1; } } while (unw_unwind(info) >= 0); unw_get_ip(info, &ip); UNW_DPRINT(0, "unwind.%s: failed to unwind to user-level (ip=0x%lx)\n", - __FUNCTION__, ip); + __func__, ip); return -1; } EXPORT_SYMBOL(unw_unwind_to_user); @@ -2028,7 +2028,7 @@ init_frame_info (struct unw_frame_info *info, struct task_struct *t, " pr 0x%lx\n" " sw 0x%lx\n" " sp 0x%lx\n", - __FUNCTION__, (unsigned long) t, rbslimit, rbstop, stktop, stklimit, + __func__, (unsigned long) t, rbslimit, rbstop, stktop, stklimit, info->pr, (unsigned long) info->sw, info->sp); STAT(unw.stat.api.init_time += ia64_get_itc() - start; local_irq_restore(flags)); } @@ -2047,7 +2047,7 @@ unw_init_frame_info (struct unw_frame_info *info, struct task_struct *t, struct " bsp 0x%lx\n" " sol 0x%lx\n" " ip 0x%lx\n", - __FUNCTION__, info->bsp, sol, info->ip); + __func__, info->bsp, sol, info->ip); find_save_locs(info); } @@ -2058,7 +2058,7 @@ unw_init_from_blocked_task (struct unw_frame_info *info, struct task_struct *t) { struct switch_stack *sw = (struct switch_stack *) (t->thread.ksp + 16); - UNW_DPRINT(1, "unwind.%s\n", __FUNCTION__); + UNW_DPRINT(1, "unwind.%s\n", __func__); unw_init_frame_info(info, t, sw); } EXPORT_SYMBOL(unw_init_from_blocked_task); @@ -2088,7 +2088,7 @@ unw_add_unwind_table (const char *name, unsigned long segment_base, unsigned lon if (end - start <= 0) { UNW_DPRINT(0, "unwind.%s: ignoring attempt to insert empty unwind table\n", - __FUNCTION__); + __func__); return NULL; } @@ -2119,14 +2119,14 @@ unw_remove_unwind_table (void *handle) if (!handle) { UNW_DPRINT(0, "unwind.%s: ignoring attempt to remove non-existent unwind table\n", - __FUNCTION__); + __func__); return; } table = handle; if (table == &unw.kernel_table) { UNW_DPRINT(0, "unwind.%s: sorry, freeing the kernel's unwind table is a " - "no-can-do!\n", __FUNCTION__); + "no-can-do!\n", __func__); return; } @@ -2139,7 +2139,7 @@ unw_remove_unwind_table (void *handle) break; if (!prev) { UNW_DPRINT(0, "unwind.%s: failed to find unwind table %p\n", - __FUNCTION__, (void *) table); + __func__, (void *) table); spin_unlock_irqrestore(&unw.lock, flags); return; } @@ -2185,7 +2185,7 @@ create_gate_table (void) } if (!punw) { - printk("%s: failed to find gate DSO's unwind table!\n", __FUNCTION__); + printk("%s: failed to find gate DSO's unwind table!\n", __func__); return 0; } @@ -2202,7 +2202,7 @@ create_gate_table (void) unw.gate_table = kmalloc(size, GFP_KERNEL); if (!unw.gate_table) { unw.gate_table_size = 0; - printk(KERN_ERR "%s: unable to create unwind data for gate page!\n", __FUNCTION__); + printk(KERN_ERR "%s: unable to create unwind data for gate page!\n", __func__); return 0; } unw.gate_table_size = size; diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 25aef6211a5..a4ca657c72c 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -714,7 +714,7 @@ int arch_add_memory(int nid, u64 start, u64 size) if (ret) printk("%s: Problem encountered in __add_pages() as ret=%d\n", - __FUNCTION__, ret); + __func__, ret); return ret; } diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 8fd7e825192..e282c348dcd 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -765,7 +765,7 @@ static void __init set_pci_cacheline_size(void) status = ia64_pal_cache_summary(&levels, &unique_caches); if (status != 0) { printk(KERN_ERR "%s: ia64_pal_cache_summary() failed " - "(status=%ld)\n", __FUNCTION__, status); + "(status=%ld)\n", __func__, status); return; } @@ -773,7 +773,7 @@ static void __init set_pci_cacheline_size(void) /* cache_type (data_or_unified)= */ 2, &cci); if (status != 0) { printk(KERN_ERR "%s: ia64_pal_cache_config_info() failed " - "(status=%ld)\n", __FUNCTION__, status); + "(status=%ld)\n", __func__, status); return; } pci_cache_line_size = (1 << cci.pcci_line_size) / 4; diff --git a/arch/ia64/sn/kernel/huberror.c b/arch/ia64/sn/kernel/huberror.c index b663168da55..0101c7924a4 100644 --- a/arch/ia64/sn/kernel/huberror.c +++ b/arch/ia64/sn/kernel/huberror.c @@ -37,7 +37,7 @@ static irqreturn_t hub_eint_handler(int irq, void *arg) (u64) nasid, 0, 0, 0, 0, 0, 0); if ((int)ret_stuff.v0) - panic("%s: Fatal %s Error", __FUNCTION__, + panic("%s: Fatal %s Error", __func__, ((nasid & 1) ? "TIO" : "HUBII")); if (!(nasid & 1)) /* Not a TIO, handle CRB errors */ @@ -48,7 +48,7 @@ static irqreturn_t hub_eint_handler(int irq, void *arg) (u64) nasid, 0, 0, 0, 0, 0, 0); if ((int)ret_stuff.v0) - panic("%s: Fatal TIO Error", __FUNCTION__); + panic("%s: Fatal TIO Error", __func__); } else bte_error_handler((unsigned long)NODEPDA(nasid_to_cnodeid(nasid))); diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c index 3c7178f5dce..6568942a95f 100644 --- a/arch/ia64/sn/kernel/io_acpi_init.c +++ b/arch/ia64/sn/kernel/io_acpi_init.c @@ -133,7 +133,7 @@ sn_get_bussoft_ptr(struct pci_bus *bus) if (ACPI_FAILURE(status)) { printk(KERN_ERR "%s: " "acpi_get_vendor_resource() failed (0x%x) for: ", - __FUNCTION__, status); + __func__, status); acpi_ns_print_node_pathname(handle, NULL); printk("\n"); return NULL; @@ -145,7 +145,7 @@ sn_get_bussoft_ptr(struct pci_bus *bus) sizeof(struct pcibus_bussoft *)) { printk(KERN_ERR "%s: Invalid vendor data length %d\n", - __FUNCTION__, vendor->byte_length); + __func__, vendor->byte_length); kfree(buffer.pointer); return NULL; } @@ -184,7 +184,7 @@ sn_extract_device_info(acpi_handle handle, struct pcidev_info **pcidev_info, if (ACPI_FAILURE(status)) { printk(KERN_ERR "%s: acpi_get_vendor_resource() failed (0x%x) for: ", - __FUNCTION__, status); + __func__, status); acpi_ns_print_node_pathname(handle, NULL); printk("\n"); return 1; @@ -196,7 +196,7 @@ sn_extract_device_info(acpi_handle handle, struct pcidev_info **pcidev_info, sizeof(struct pci_devdev_info *)) { printk(KERN_ERR "%s: Invalid vendor data length: %d for: ", - __FUNCTION__, vendor->byte_length); + __func__, vendor->byte_length); acpi_ns_print_node_pathname(handle, NULL); printk("\n"); ret = 1; @@ -205,7 +205,7 @@ sn_extract_device_info(acpi_handle handle, struct pcidev_info **pcidev_info, pcidev_ptr = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL); if (!pcidev_ptr) - panic("%s: Unable to alloc memory for pcidev_info", __FUNCTION__); + panic("%s: Unable to alloc memory for pcidev_info", __func__); memcpy(&addr, vendor->byte_data, sizeof(struct pcidev_info *)); pcidev_prom_ptr = __va(addr); @@ -214,7 +214,7 @@ sn_extract_device_info(acpi_handle handle, struct pcidev_info **pcidev_info, /* Get the IRQ info */ irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL); if (!irq_info) - panic("%s: Unable to alloc memory for sn_irq_info", __FUNCTION__); + panic("%s: Unable to alloc memory for sn_irq_info", __func__); if (pcidev_ptr->pdi_sn_irq_info) { irq_info_prom = __va(pcidev_ptr->pdi_sn_irq_info); @@ -249,10 +249,10 @@ get_host_devfn(acpi_handle device_handle, acpi_handle rootbus_handle) status = acpi_get_parent(child, &parent); if (ACPI_FAILURE(status)) { printk(KERN_ERR "%s: acpi_get_parent() failed " - "(0x%x) for: ", __FUNCTION__, status); + "(0x%x) for: ", __func__, status); acpi_ns_print_node_pathname(child, NULL); printk("\n"); - panic("%s: Unable to find host devfn\n", __FUNCTION__); + panic("%s: Unable to find host devfn\n", __func__); } if (parent == rootbus_handle) break; @@ -260,7 +260,7 @@ get_host_devfn(acpi_handle device_handle, acpi_handle rootbus_handle) } if (!child) { printk(KERN_ERR "%s: Unable to find root bus for: ", - __FUNCTION__); + __func__); acpi_ns_print_node_pathname(device_handle, NULL); printk("\n"); BUG(); @@ -269,10 +269,10 @@ get_host_devfn(acpi_handle device_handle, acpi_handle rootbus_handle) status = acpi_evaluate_integer(child, METHOD_NAME__ADR, NULL, &adr); if (ACPI_FAILURE(status)) { printk(KERN_ERR "%s: Unable to get _ADR (0x%x) for: ", - __FUNCTION__, status); + __func__, status); acpi_ns_print_node_pathname(child, NULL); printk("\n"); - panic("%s: Unable to find host devfn\n", __FUNCTION__); + panic("%s: Unable to find host devfn\n", __func__); } slot = (adr >> 16) & 0xffff; @@ -308,7 +308,7 @@ find_matching_device(acpi_handle handle, u32 lvl, void *context, void **rv) if (ACPI_FAILURE(status)) { printk(KERN_ERR "%s: acpi_get_parent() failed (0x%x) for: ", - __FUNCTION__, status); + __func__, status); acpi_ns_print_node_pathname(handle, NULL); printk("\n"); return AE_OK; @@ -318,7 +318,7 @@ find_matching_device(acpi_handle handle, u32 lvl, void *context, void **rv) if (ACPI_FAILURE(status)) { printk(KERN_ERR "%s: Failed to find _BBN in parent of: ", - __FUNCTION__); + __func__); acpi_ns_print_node_pathname(handle, NULL); printk("\n"); return AE_OK; @@ -358,14 +358,14 @@ sn_acpi_get_pcidev_info(struct pci_dev *dev, struct pcidev_info **pcidev_info, if (segment != pci_domain_nr(dev)) { printk(KERN_ERR "%s: Segment number mismatch, 0x%lx vs 0x%x for: ", - __FUNCTION__, segment, pci_domain_nr(dev)); + __func__, segment, pci_domain_nr(dev)); acpi_ns_print_node_pathname(rootbus_handle, NULL); printk("\n"); return 1; } } else { printk(KERN_ERR "%s: Unable to get __SEG from: ", - __FUNCTION__); + __func__); acpi_ns_print_node_pathname(rootbus_handle, NULL); printk("\n"); return 1; @@ -386,7 +386,7 @@ sn_acpi_get_pcidev_info(struct pci_dev *dev, struct pcidev_info **pcidev_info, if (!pcidev_match.handle) { printk(KERN_ERR "%s: Could not find matching ACPI device for %s.\n", - __FUNCTION__, pci_name(dev)); + __func__, pci_name(dev)); return 1; } @@ -422,7 +422,7 @@ sn_acpi_slot_fixup(struct pci_dev *dev) if (sn_acpi_get_pcidev_info(dev, &pcidev_info, &sn_irq_info)) { panic("%s: Failure obtaining pcidev_info for %s\n", - __FUNCTION__, pci_name(dev)); + __func__, pci_name(dev)); } if (pcidev_info->pdi_pio_mapped_addr[PCI_ROM_RESOURCE]) { @@ -463,7 +463,7 @@ sn_acpi_bus_fixup(struct pci_bus *bus) printk(KERN_ERR "%s: 0x%04x:0x%02x Unable to " "obtain prom_bussoft_ptr\n", - __FUNCTION__, pci_domain_nr(bus), bus->number); + __func__, pci_domain_nr(bus), bus->number); return; } sn_common_bus_fixup(bus, prom_bussoft_ptr); diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c index c4eb84f9e78..8a924a5661d 100644 --- a/arch/ia64/sn/kernel/io_common.c +++ b/arch/ia64/sn/kernel/io_common.c @@ -364,7 +364,7 @@ void sn_bus_store_sysdata(struct pci_dev *dev) element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL); if (!element) { - dev_dbg(&dev->dev, "%s: out of memory!\n", __FUNCTION__); + dev_dbg(&dev->dev, "%s: out of memory!\n", __func__); return; } element->sysdata = SN_PCIDEV_INFO(dev); diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c index 906b93674b7..c3aa851d1ca 100644 --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -209,11 +209,11 @@ sn_io_slot_fixup(struct pci_dev *dev) pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL); if (!pcidev_info) - panic("%s: Unable to alloc memory for pcidev_info", __FUNCTION__); + panic("%s: Unable to alloc memory for pcidev_info", __func__); sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL); if (!sn_irq_info) - panic("%s: Unable to alloc memory for sn_irq_info", __FUNCTION__); + panic("%s: Unable to alloc memory for sn_irq_info", __func__); /* Call to retrieve pci device information needed by kernel. */ status = sal_get_pcidev_info((u64) pci_domain_nr(dev), diff --git a/arch/ia64/sn/kernel/mca.c b/arch/ia64/sn/kernel/mca.c index 868c9aa64fe..27793f7aa99 100644 --- a/arch/ia64/sn/kernel/mca.c +++ b/arch/ia64/sn/kernel/mca.c @@ -100,7 +100,7 @@ sn_platform_plat_specific_err_print(const u8 * sect_header, u8 ** oemdata, if (!newbuf) { mutex_unlock(&sn_oemdata_mutex); printk(KERN_ERR "%s: unable to extend sn_oemdata\n", - __FUNCTION__); + __func__); return 1; } vfree(*sn_oemdata); diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c index 511db2fd7bf..18b94b792d5 100644 --- a/arch/ia64/sn/pci/pci_dma.c +++ b/arch/ia64/sn/pci/pci_dma.c @@ -116,7 +116,7 @@ void *sn_dma_alloc_coherent(struct device *dev, size_t size, *dma_handle = provider->dma_map_consistent(pdev, phys_addr, size, SN_DMA_ADDR_PHYS); if (!*dma_handle) { - printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__); + printk(KERN_ERR "%s: out of ATEs\n", __func__); free_pages((unsigned long)cpuaddr, get_order(size)); return NULL; } @@ -179,7 +179,7 @@ dma_addr_t sn_dma_map_single(struct device *dev, void *cpu_addr, size_t size, phys_addr = __pa(cpu_addr); dma_addr = provider->dma_map(pdev, phys_addr, size, SN_DMA_ADDR_PHYS); if (!dma_addr) { - printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__); + printk(KERN_ERR "%s: out of ATEs\n", __func__); return 0; } return dma_addr; @@ -266,7 +266,7 @@ int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl, int nhwentries, SN_DMA_ADDR_PHYS); if (!sg->dma_address) { - printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__); + printk(KERN_ERR "%s: out of ATEs\n", __func__); /* * Free any successfully allocated entries. diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c index ef048a67477..529462c0157 100644 --- a/arch/ia64/sn/pci/tioca_provider.c +++ b/arch/ia64/sn/pci/tioca_provider.c @@ -88,7 +88,7 @@ tioca_gart_init(struct tioca_kernel *tioca_kern) break; default: printk(KERN_ERR "%s: Invalid CA_APERATURE_SIZE " - "0x%lx\n", __FUNCTION__, (ulong) CA_APERATURE_SIZE); + "0x%lx\n", __func__, (ulong) CA_APERATURE_SIZE); return -1; } @@ -124,7 +124,7 @@ tioca_gart_init(struct tioca_kernel *tioca_kern) if (!tmp) { printk(KERN_ERR "%s: Could not allocate " "%lu bytes (order %d) for GART\n", - __FUNCTION__, + __func__, tioca_kern->ca_gart_size, get_order(tioca_kern->ca_gart_size)); return -ENOMEM; @@ -341,7 +341,7 @@ tioca_dma_d48(struct pci_dev *pdev, u64 paddr) if (node_upper > 64) { printk(KERN_ERR "%s: coretalk addr 0x%p node id out " - "of range\n", __FUNCTION__, (void *)ct_addr); + "of range\n", __func__, (void *)ct_addr); return 0; } @@ -349,7 +349,7 @@ tioca_dma_d48(struct pci_dev *pdev, u64 paddr) if (node_upper != (agp_dma_extn >> CA_AGP_DMA_NODE_ID_SHFT)) { printk(KERN_ERR "%s: coretalk upper node (%u) " "mismatch with ca_agp_dma_addr_extn (%lu)\n", - __FUNCTION__, + __func__, node_upper, (agp_dma_extn >> CA_AGP_DMA_NODE_ID_SHFT)); return 0; } @@ -597,7 +597,7 @@ tioca_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont if (is_shub1() && sn_sal_rev() < 0x0406) { printk (KERN_ERR "%s: SGI prom rev 4.06 or greater required " - "for tioca support\n", __FUNCTION__); + "for tioca support\n", __func__); return NULL; } @@ -651,7 +651,7 @@ tioca_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont printk(KERN_WARNING "%s: Unable to get irq %d. " "Error interrupts won't be routed for TIOCA bus %d\n", - __FUNCTION__, SGI_TIOCA_ERROR, + __func__, SGI_TIOCA_ERROR, (int)tioca_common->ca_common.bs_persist_busnum); sn_set_err_irq_affinity(SGI_TIOCA_ERROR); diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c index 999f14f986e..9b3c1137302 100644 --- a/arch/ia64/sn/pci/tioce_provider.c +++ b/arch/ia64/sn/pci/tioce_provider.c @@ -494,7 +494,7 @@ tioce_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir) if (&map->ce_dmamap_list == &ce_kern->ce_dmamap_list) { printk(KERN_WARNING "%s: %s - no map found for bus_addr 0x%lx\n", - __FUNCTION__, pci_name(pdev), bus_addr); + __func__, pci_name(pdev), bus_addr); } else if (--map->refcnt == 0) { for (i = 0; i < map->ate_count; i++) { map->ate_shadow[i] = 0; @@ -1030,7 +1030,7 @@ tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont "%s: Unable to get irq %d. " "Error interrupts won't be routed for " "TIOCE bus %04x:%02x\n", - __FUNCTION__, SGI_PCIASIC_ERROR, + __func__, SGI_PCIASIC_ERROR, tioce_common->ce_pcibus.bs_persist_segment, tioce_common->ce_pcibus.bs_persist_busnum); -- GitLab From 1ab40ec8f227a2b278a5151e60b7070a8bf5546d Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 4 Mar 2008 16:34:57 -0700 Subject: [PATCH 592/923] [IA64] use dev_printk in video quirk Convert quirk printks to dev_printk(). Signed-off-by: Bjorn Helgaas Signed-off-by: Tony Luck --- arch/ia64/pci/fixup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/ia64/pci/fixup.c b/arch/ia64/pci/fixup.c index 245dc1fedc2..f5959c0c181 100644 --- a/arch/ia64/pci/fixup.c +++ b/arch/ia64/pci/fixup.c @@ -63,7 +63,7 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev) pci_read_config_word(pdev, PCI_COMMAND, &config); if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; - printk(KERN_DEBUG "Boot video device is %s\n", pci_name(pdev)); + dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n"); } } DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video); -- GitLab From 818c7e866f920b145424c2c46deda4b27c3fb316 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Tue, 26 Feb 2008 15:24:04 +0900 Subject: [PATCH 593/923] [IA64] update efi region debugging to use MB, GB and TB as well as KB When EFI_DEBUG is defined to a non-zero value in arch/ia64/kernel/efi.c, the efi memory regions are displayed. This patch enhances the display code in a few ways: 1. Use TB, GB and MB as well as KB as units. Although this introduces rounding errors (KB doesn't as size is always a multiple of 4Kb), it does make things a lot more readable. Also as the range is also shown, it is possible to note the exact size if it is important. In my experience, the size field is mostly useful for getting a general idea of the size of a region. On the rx2620 that I use, there actually is an 8TB region (though not backed by physical memory, and 8TB really is a lot more readable than 8589934592KB. 2. pad the size field with leading spaces to further improve readability ... ... ( 8MB) ... ( 928MB) ... ( 3MB) ... vs ... ... (8MB) ... (928MB) ... (3MB) ... 3. Pad the attr field out to 64bits using leading zeros, to further improve readability. ... mem05: type= 2, attr=0x0000000000000008, range=[0x0000000004000000-0x000000000481f000) ( 8MB) mem06: type= 7, attr=0x0000000000000008, range=[0x000000000481f000-0x000000003e876000) ( 928MB) mem07: type= 5, attr=0x8000000000000008, range=[0x000000003e876000-0x000000003eb8e000) ( 3MB) mem08: type= 4, attr=0x0000000000000008, range=[0x000000003eb8e000-0x000000003ee7a000) ( 2MB) ... ... mem05: type= 2, attr=0x8, range=[0x0000000004000000-0x000000000481f000) ( 8MB) mem06: type= 7, attr=0x8, range=[0x000000000481f000-0x000000003e876000) ( 928MB) mem07: type= 5, attr=0x8000000000000008, range=[0x000000003e876000-0x000000003eb8e000) ( 3MB) mem08: type= 4, attr=0x8, range=[0x000000003eb8e000-0x000000003ee7a000) ( 2MB) ... 4. Use %d instead of %u for the index field, as i is a signed int. N.B: This code is not compiled unless EFI_DEBUG is non 0. Signed-off-by: Simon Horman Signed-off-by: Tony Luck --- arch/ia64/kernel/efi.c | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 78f50e81cd9..728d7247a1a 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -543,12 +543,30 @@ efi_init (void) for (i = 0, p = efi_map_start; p < efi_map_end; ++i, p += efi_desc_size) { + const char *unit; + unsigned long size; + md = p; - printk("mem%02u: type=%u, attr=0x%lx, " - "range=[0x%016lx-0x%016lx) (%luMB)\n", + size = md->num_pages << EFI_PAGE_SHIFT; + + if ((size >> 40) > 0) { + size >>= 40; + unit = "TB"; + } else if ((size >> 30) > 0) { + size >>= 30; + unit = "GB"; + } else if ((size >> 20) > 0) { + size >>= 20; + unit = "MB"; + } else { + size >>= 10; + unit = "KB"; + } + + printk("mem%02d: type=%2u, attr=0x%016lx, " + "range=[0x%016lx-0x%016lx) (%4lu%s)\n", i, md->type, md->attribute, md->phys_addr, - md->phys_addr + efi_md_size(md), - md->num_pages >> (20 - EFI_PAGE_SHIFT)); + md->phys_addr + efi_md_size(md), size, unit); } } #endif -- GitLab From 45e18c228e131592a922859e1525770a1803191d Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Thu, 6 Mar 2008 09:49:01 -0800 Subject: [PATCH 594/923] [IA64] kprobes arch consolidation build fix ia64 named their handler kprobes_fault_handler while all other arches used kprobe_fault_handler. Change the function definition and header declaration. Signed-off-by: Harvey Harrison Signed-off-by: Tony Luck --- arch/ia64/kernel/kprobes.c | 2 +- arch/ia64/mm/fault.c | 2 +- include/asm-ia64/kprobes.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index 615c3d2b634..8d9a446a0d1 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -838,7 +838,7 @@ out: return 1; } -int __kprobes kprobes_fault_handler(struct pt_regs *regs, int trapnr) +int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) { struct kprobe *cur = kprobe_running(); struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c index 3e69881648a..23088bed111 100644 --- a/arch/ia64/mm/fault.c +++ b/arch/ia64/mm/fault.c @@ -26,7 +26,7 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap) if (!user_mode(regs)) { /* kprobe_running() needs smp_processor_id() */ preempt_disable(); - if (kprobe_running() && kprobes_fault_handler(regs, trap)) + if (kprobe_running() && kprobe_fault_handler(regs, trap)) ret = 1; preempt_enable(); } diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index 8233b3a964c..d03bf9ff68e 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -117,7 +117,7 @@ struct arch_specific_insn { unsigned short slot; }; -extern int kprobes_fault_handler(struct pt_regs *regs, int trapnr); +extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); extern int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data); -- GitLab From 8b1266f43d2671cbfc240bfd38fc77c6db02de54 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Fri, 22 Feb 2008 21:58:02 +0200 Subject: [PATCH 595/923] [WATCHDOG] make watchdog/hpwdt.c:asminline_call() static This patch makes the needlessly global asminline_call() static and removes the not required "asmlinkage". Signed-off-by: Adrian Bunk Acked-by: Thomas Mingarelli Signed-off-by: Wim Van Sebroeck Cc: Andrew Morton --- drivers/watchdog/hpwdt.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 2686f3eaeed..6483d1066b9 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -145,8 +145,8 @@ MODULE_DEVICE_TABLE(pci, hpwdt_devices); #define HPWDT_ARCH 32 -asmlinkage void asminline_call(struct cmn_registers *pi86Regs, - unsigned long *pRomEntry) +static void asminline_call(struct cmn_registers *pi86Regs, + unsigned long *pRomEntry) { asm("pushl %ebp \n\t" "movl %esp, %ebp \n\t" @@ -333,8 +333,8 @@ static int __devinit detect_cru_service(void) #define HPWDT_ARCH 64 -asmlinkage void asminline_call(struct cmn_registers *pi86Regs, - unsigned long *pRomEntry) +static void asminline_call(struct cmn_registers *pi86Regs, + unsigned long *pRomEntry) { asm("pushq %rbp \n\t" "movq %rsp, %rbp \n\t" -- GitLab From b773ad73690b5f34eee0c76f4273ac6fcbd88f82 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Tue, 4 Mar 2008 11:10:17 -0800 Subject: [PATCH 596/923] slub statistics: Fix check for DEACTIVATE_REMOTE_FREES The remote frees are in the freelist of the page and not in the percpu freelist. Reviewed-by: Pekka Enberg Signed-off-by: Christoph Lameter --- mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index 0863fd38a5c..a96e11c77fd 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1368,7 +1368,7 @@ static void deactivate_slab(struct kmem_cache *s, struct kmem_cache_cpu *c) struct page *page = c->page; int tail = 1; - if (c->freelist) + if (page->freelist) stat(c, DEACTIVATE_REMOTE_FREES); /* * Merge cpu freelist into slab freelist. Typically we get here -- GitLab From 9ac33b2b749e9539e84bbb1a41f97b066c4bd757 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Tue, 4 Mar 2008 12:24:22 -0800 Subject: [PATCH 597/923] slab numa fallback logic: Do not pass unfiltered flags to page allocator The NUMA fallback logic should be passing local_flags to kmem_get_pages() and not simply the flags passed in. Reviewed-by: Pekka Enberg Signed-off-by: Christoph Lameter --- mm/slab.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/slab.c b/mm/slab.c index 473e6c2eaef..5d16c8a3049 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3280,7 +3280,7 @@ retry: if (local_flags & __GFP_WAIT) local_irq_enable(); kmem_flagcheck(cache, flags); - obj = kmem_getpages(cache, flags, -1); + obj = kmem_getpages(cache, local_flags, -1); if (local_flags & __GFP_WAIT) local_irq_disable(); if (obj) { -- GitLab From 1c61fc40fc264059ff41a614ed2d899127288281 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 5 Mar 2008 13:58:17 -0800 Subject: [PATCH 598/923] slab - use angle brackets for include of kmalloc_sizes.h Make them all use angle brackets and the directory name. Acked-by: Pekka Enberg Signed-off-by: Joe Perches Signed-off-by: Christoph Lameter --- include/linux/slab_def.h | 4 ++-- mm/slab.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h index fcc48096ee6..39c3a5eb8eb 100644 --- a/include/linux/slab_def.h +++ b/include/linux/slab_def.h @@ -41,7 +41,7 @@ static inline void *kmalloc(size_t size, gfp_t flags) goto found; \ else \ i++; -#include "kmalloc_sizes.h" +#include #undef CACHE { extern void __you_cannot_kmalloc_that_much(void); @@ -75,7 +75,7 @@ static inline void *kmalloc_node(size_t size, gfp_t flags, int node) goto found; \ else \ i++; -#include "kmalloc_sizes.h" +#include #undef CACHE { extern void __you_cannot_kmalloc_that_much(void); diff --git a/mm/slab.c b/mm/slab.c index 5d16c8a3049..f7faff72cf5 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -333,7 +333,7 @@ static __always_inline int index_of(const size_t size) return i; \ else \ i++; -#include "linux/kmalloc_sizes.h" +#include #undef CACHE __bad_size(); } else -- GitLab From b6210386787728b84db25adc4f1eba70440a4c73 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Wed, 5 Mar 2008 14:05:56 -0800 Subject: [PATCH 599/923] slub: Do not cross cacheline boundaries for very small objects SLUB should pack even small objects nicely into cachelines if that is what has been asked for. Use the same algorithm as SLAB for this. The effect of this patch for a system with a cacheline size of 64 bytes is that the 24 byte sized slab caches will now put exactly 2 objects into a cacheline instead of 3 with some overlap into the next cacheline. This reduces the object density in a 4k slab from 170 to 128 objects (same as SLAB). Signed-off-by: Nick Piggin Signed-off-by: Christoph Lameter --- mm/slub.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index a96e11c77fd..96d63eb3ab1 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1856,12 +1856,15 @@ static unsigned long calculate_alignment(unsigned long flags, * The hardware cache alignment cannot override the specified * alignment though. If that is greater then use it. */ - if ((flags & SLAB_HWCACHE_ALIGN) && - size > cache_line_size() / 2) - return max_t(unsigned long, align, cache_line_size()); + if (flags & SLAB_HWCACHE_ALIGN) { + unsigned long ralign = cache_line_size(); + while (size <= ralign / 2) + ralign /= 2; + align = max(align, ralign); + } if (align < ARCH_SLAB_MINALIGN) - return ARCH_SLAB_MINALIGN; + align = ARCH_SLAB_MINALIGN; return ALIGN(align, sizeof(void *)); } -- GitLab From 6d2144d355d2a532e5cc3fc12a6ba2a8d4ef15e4 Mon Sep 17 00:00:00 2001 From: Joe Korty Date: Wed, 5 Mar 2008 15:04:59 -0800 Subject: [PATCH 600/923] slab: NUMA slab allocator migration bugfix NUMA slab allocator cpu migration bugfix The NUMA slab allocator (specifically, cache_alloc_refill) is not refreshing its local copies of what cpu and what numa node it is on, when it drops and reacquires the irq block that it inherited from its caller. As a result those values become invalid if an attempt to migrate the process to another numa node occured while the irq block had been dropped. The solution is to make cache_alloc_refill reload these variables whenever it drops and reacquires the irq block. The error is very difficult to hit. When it does occur, one gets the following oops + stack traceback bits in check_spinlock_acquired: kernel BUG at mm/slab.c:2417 cache_alloc_refill+0xe6 kmem_cache_alloc+0xd0 ... This patch was developed against 2.6.23, ported to and compiled-tested only against 2.6.25-rc4. Signed-off-by: Joe Korty Signed-off-by: Christoph Lameter --- mm/slab.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/mm/slab.c b/mm/slab.c index f7faff72cf5..e6c698f5567 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2964,11 +2964,10 @@ static void *cache_alloc_refill(struct kmem_cache *cachep, gfp_t flags) struct array_cache *ac; int node; - node = numa_node_id(); - +retry: check_irq_off(); + node = numa_node_id(); ac = cpu_cache_get(cachep); -retry: batchcount = ac->batchcount; if (!ac->touched && batchcount > BATCHREFILL_LIMIT) { /* -- GitLab From 989a7241df87526bfef0396567e71ebe53a84ae4 Mon Sep 17 00:00:00 2001 From: Itaru Kitayama Date: Wed, 5 Mar 2008 15:07:30 -0800 Subject: [PATCH 601/923] slub: fix typo in Documentation/vm/slub.txt slub_debug=,dentry is correct, not dentry_cache. Signed-off-by: Itaru Kitayama Signed-off-by: Christoph Lameter --- Documentation/vm/slub.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/vm/slub.txt b/Documentation/vm/slub.txt index dcf8bcf846d..7c13f22a0c9 100644 --- a/Documentation/vm/slub.txt +++ b/Documentation/vm/slub.txt @@ -50,14 +50,14 @@ F.e. in order to boot just with sanity checks and red zoning one would specify: Trying to find an issue in the dentry cache? Try - slub_debug=,dentry_cache + slub_debug=,dentry to only enable debugging on the dentry cache. Red zoning and tracking may realign the slab. We can just apply sanity checks to the dentry cache with - slub_debug=F,dentry_cache + slub_debug=F,dentry In case you forgot to enable debugging on the kernel command line: It is possible to enable debugging manually when the kernel is up. Look at the -- GitLab From 28b958859206b7010d03129611c2e444898e3ee4 Mon Sep 17 00:00:00 2001 From: Li Yang Date: Thu, 6 Mar 2008 18:42:26 +0800 Subject: [PATCH 602/923] [POWERPC] 83xx: Fix wrong USB phy type in mpc837xmds dts Due to chip constraint MPC837x USB DR module can only use ULPI and serial PHY interfaces. The patch fixes the wrong type in dts. Signed-off-by: Li Yang Signed-off-by: Kumar Gala --- arch/powerpc/boot/dts/mpc8377_mds.dts | 4 ++-- arch/powerpc/boot/dts/mpc8378_mds.dts | 4 ++-- arch/powerpc/boot/dts/mpc8379_mds.dts | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/boot/dts/mpc8377_mds.dts b/arch/powerpc/boot/dts/mpc8377_mds.dts index a3637fff73c..677a0615eb0 100644 --- a/arch/powerpc/boot/dts/mpc8377_mds.dts +++ b/arch/powerpc/boot/dts/mpc8377_mds.dts @@ -91,7 +91,6 @@ mode = "cpu"; }; - /* phy type (ULPI, UTMI, UTMI_WIDE, SERIAL) */ usb@23000 { compatible = "fsl-usb2-dr"; reg = <0x23000 0x1000>; @@ -99,7 +98,8 @@ #size-cells = <0>; interrupt-parent = <&ipic>; interrupts = <38 0x8>; - phy_type = "utmi_wide"; + dr_mode = "host"; + phy_type = "ulpi"; }; mdio@24520 { diff --git a/arch/powerpc/boot/dts/mpc8378_mds.dts b/arch/powerpc/boot/dts/mpc8378_mds.dts index 533e9b06cc8..3f9e9fe4b5a 100644 --- a/arch/powerpc/boot/dts/mpc8378_mds.dts +++ b/arch/powerpc/boot/dts/mpc8378_mds.dts @@ -91,7 +91,6 @@ mode = "cpu"; }; - /* phy type (ULPI, UTMI, UTMI_WIDE, SERIAL) */ usb@23000 { compatible = "fsl-usb2-dr"; reg = <0x23000 0x1000>; @@ -99,7 +98,8 @@ #size-cells = <0>; interrupt-parent = <&ipic>; interrupts = <38 0x8>; - phy_type = "utmi_wide"; + dr_mode = "host"; + phy_type = "ulpi"; }; mdio@24520 { diff --git a/arch/powerpc/boot/dts/mpc8379_mds.dts b/arch/powerpc/boot/dts/mpc8379_mds.dts index c270685bbde..36c1c13f051 100644 --- a/arch/powerpc/boot/dts/mpc8379_mds.dts +++ b/arch/powerpc/boot/dts/mpc8379_mds.dts @@ -91,7 +91,6 @@ mode = "cpu"; }; - /* phy type (ULPI, UTMI, UTMI_WIDE, SERIAL) */ usb@23000 { compatible = "fsl-usb2-dr"; reg = <0x23000 0x1000>; @@ -99,7 +98,8 @@ #size-cells = <0>; interrupt-parent = <&ipic>; interrupts = <38 0x8>; - phy_type = "utmi_wide"; + dr_mode = "host"; + phy_type = "ulpi"; }; mdio@24520 { -- GitLab From d7f46190ef1048e48f71c8a7a60c2881c437d08d Mon Sep 17 00:00:00 2001 From: Li Yang Date: Thu, 6 Mar 2008 18:42:35 +0800 Subject: [PATCH 603/923] [POWERPC] 83xx: Add local bus device nodes to MPC837xMDS device trees. Signed-off-by: Li Yang Signed-off-by: Kumar Gala --- arch/powerpc/boot/dts/mpc8377_mds.dts | 66 +++++++++++++++++++++++ arch/powerpc/boot/dts/mpc8378_mds.dts | 66 +++++++++++++++++++++++ arch/powerpc/boot/dts/mpc8379_mds.dts | 66 +++++++++++++++++++++++ arch/powerpc/platforms/83xx/mpc837x_mds.c | 8 ++- 4 files changed, 201 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/boot/dts/mpc8377_mds.dts b/arch/powerpc/boot/dts/mpc8377_mds.dts index 677a0615eb0..49c05e97386 100644 --- a/arch/powerpc/boot/dts/mpc8377_mds.dts +++ b/arch/powerpc/boot/dts/mpc8377_mds.dts @@ -47,6 +47,72 @@ reg = <0x00000000 0x20000000>; // 512MB at 0 }; + localbus@e0005000 { + #address-cells = <2>; + #size-cells = <1>; + compatible = "fsl,mpc8377-elbc", "fsl,elbc", "simple-bus"; + reg = <0xe0005000 0x1000>; + interrupts = <77 0x8>; + interrupt-parent = <&ipic>; + + // booting from NOR flash + ranges = <0 0x0 0xfe000000 0x02000000 + 1 0x0 0xf8000000 0x00008000 + 3 0x0 0xe0600000 0x00008000>; + + flash@0,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "cfi-flash"; + reg = <0 0x0 0x2000000>; + bank-width = <2>; + device-width = <1>; + + u-boot@0 { + reg = <0x0 0x100000>; + read-only; + }; + + fs@100000 { + reg = <0x100000 0x800000>; + }; + + kernel@1d00000 { + reg = <0x1d00000 0x200000>; + }; + + dtb@1f00000 { + reg = <0x1f00000 0x100000>; + }; + }; + + bcsr@1,0 { + reg = <1 0x0 0x8000>; + compatible = "fsl,mpc837xmds-bcsr"; + }; + + nand@3,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,mpc8377-fcm-nand", + "fsl,elbc-fcm-nand"; + reg = <3 0x0 0x8000>; + + u-boot@0 { + reg = <0x0 0x100000>; + read-only; + }; + + kernel@100000 { + reg = <0x100000 0x300000>; + }; + + fs@400000 { + reg = <0x400000 0x1c00000>; + }; + }; + }; + soc@e0000000 { #address-cells = <1>; #size-cells = <1>; diff --git a/arch/powerpc/boot/dts/mpc8378_mds.dts b/arch/powerpc/boot/dts/mpc8378_mds.dts index 3f9e9fe4b5a..1d6ea080ad7 100644 --- a/arch/powerpc/boot/dts/mpc8378_mds.dts +++ b/arch/powerpc/boot/dts/mpc8378_mds.dts @@ -47,6 +47,72 @@ reg = <0x00000000 0x20000000>; // 512MB at 0 }; + localbus@e0005000 { + #address-cells = <2>; + #size-cells = <1>; + compatible = "fsl,mpc8378-elbc", "fsl,elbc", "simple-bus"; + reg = <0xe0005000 0x1000>; + interrupts = <77 0x8>; + interrupt-parent = <&ipic>; + + // booting from NOR flash + ranges = <0 0x0 0xfe000000 0x02000000 + 1 0x0 0xf8000000 0x00008000 + 3 0x0 0xe0600000 0x00008000>; + + flash@0,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "cfi-flash"; + reg = <0 0x0 0x2000000>; + bank-width = <2>; + device-width = <1>; + + u-boot@0 { + reg = <0x0 0x100000>; + read-only; + }; + + fs@100000 { + reg = <0x100000 0x800000>; + }; + + kernel@1d00000 { + reg = <0x1d00000 0x200000>; + }; + + dtb@1f00000 { + reg = <0x1f00000 0x100000>; + }; + }; + + bcsr@1,0 { + reg = <1 0x0 0x8000>; + compatible = "fsl,mpc837xmds-bcsr"; + }; + + nand@3,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,mpc8378-fcm-nand", + "fsl,elbc-fcm-nand"; + reg = <3 0x0 0x8000>; + + u-boot@0 { + reg = <0x0 0x100000>; + read-only; + }; + + kernel@100000 { + reg = <0x100000 0x300000>; + }; + + fs@400000 { + reg = <0x400000 0x1c00000>; + }; + }; + }; + soc@e0000000 { #address-cells = <1>; #size-cells = <1>; diff --git a/arch/powerpc/boot/dts/mpc8379_mds.dts b/arch/powerpc/boot/dts/mpc8379_mds.dts index 36c1c13f051..fdb4a9255b2 100644 --- a/arch/powerpc/boot/dts/mpc8379_mds.dts +++ b/arch/powerpc/boot/dts/mpc8379_mds.dts @@ -47,6 +47,72 @@ reg = <0x00000000 0x20000000>; // 512MB at 0 }; + localbus@e0005000 { + #address-cells = <2>; + #size-cells = <1>; + compatible = "fsl,mpc8379-elbc", "fsl,elbc", "simple-bus"; + reg = <0xe0005000 0x1000>; + interrupts = <77 0x8>; + interrupt-parent = <&ipic>; + + // booting from NOR flash + ranges = <0 0x0 0xfe000000 0x02000000 + 1 0x0 0xf8000000 0x00008000 + 3 0x0 0xe0600000 0x00008000>; + + flash@0,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "cfi-flash"; + reg = <0 0x0 0x2000000>; + bank-width = <2>; + device-width = <1>; + + u-boot@0 { + reg = <0x0 0x100000>; + read-only; + }; + + fs@100000 { + reg = <0x100000 0x800000>; + }; + + kernel@1d00000 { + reg = <0x1d00000 0x200000>; + }; + + dtb@1f00000 { + reg = <0x1f00000 0x100000>; + }; + }; + + bcsr@1,0 { + reg = <1 0x0 0x8000>; + compatible = "fsl,mpc837xmds-bcsr"; + }; + + nand@3,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,mpc8379-fcm-nand", + "fsl,elbc-fcm-nand"; + reg = <3 0x0 0x8000>; + + u-boot@0 { + reg = <0x0 0x100000>; + read-only; + }; + + kernel@100000 { + reg = <0x100000 0x300000>; + }; + + fs@400000 { + reg = <0x400000 0x1c00000>; + }; + }; + }; + soc@e0000000 { #address-cells = <1>; #size-cells = <1>; diff --git a/arch/powerpc/platforms/83xx/mpc837x_mds.c b/arch/powerpc/platforms/83xx/mpc837x_mds.c index 8a9c2697360..64d17b0d645 100644 --- a/arch/powerpc/platforms/83xx/mpc837x_mds.c +++ b/arch/powerpc/platforms/83xx/mpc837x_mds.c @@ -39,12 +39,9 @@ static int mpc837xmds_usb_cfg(void) if (ret) return ret; /* Map BCSR area */ - np = of_find_node_by_name(NULL, "bcsr"); + np = of_find_compatible_node(NULL, NULL, "fsl,mpc837xmds-bcsr"); if (np) { - struct resource res; - - of_address_to_resource(np, 0, &res); - bcsr_regs = ioremap(res.start, res.end - res.start + 1); + bcsr_regs = of_iomap(np, 0); of_node_put(np); } if (!bcsr_regs) @@ -96,6 +93,7 @@ static void __init mpc837x_mds_setup_arch(void) static struct of_device_id mpc837x_ids[] = { { .type = "soc", }, { .compatible = "soc", }, + { .compatible = "simple-bus", }, {}, }; -- GitLab From 76db5bd26f2d79712459bf80ce0e5c0c5c31b769 Mon Sep 17 00:00:00 2001 From: Vitaly Bordug Date: Thu, 6 Mar 2008 13:53:30 +0300 Subject: [PATCH 604/923] [POWERPC] 8xx: fix swap This makes swap routines operate correctly on the ppc_8xx based machines. Code has been revalidated on mpc885ads (8M sdram) with recent kernel. Based on patch from Yuri Tikhonov to do the same on arch/ppc instance. Recent kernel's size makes swap feature very important on low-memory platforms, those are actually non-operable without it. Signed-off-by: Yuri Tikhonov Signed-off-by: Vitaly Bordug Signed-off-by: Kumar Gala --- arch/powerpc/kernel/head_8xx.S | 30 ++++++++++++++++++++++++++++- include/asm-powerpc/pgtable-ppc32.h | 8 -------- 2 files changed, 29 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index f7458396cd7..3c9452d4308 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -332,8 +332,18 @@ InstructionTLBMiss: mfspr r11, SPRN_MD_TWC /* ....and get the pte address */ lwz r10, 0(r11) /* Get the pte */ +#ifdef CONFIG_SWAP + /* do not set the _PAGE_ACCESSED bit of a non-present page */ + andi. r11, r10, _PAGE_PRESENT + beq 4f + ori r10, r10, _PAGE_ACCESSED + mfspr r11, SPRN_MD_TWC /* get the pte address again */ + stw r10, 0(r11) +4: +#else ori r10, r10, _PAGE_ACCESSED stw r10, 0(r11) +#endif /* The Linux PTE won't go exactly into the MMU TLB. * Software indicator bits 21, 22 and 28 must be clear. @@ -398,8 +408,17 @@ DataStoreTLBMiss: DO_8xx_CPU6(0x3b80, r3) mtspr SPRN_MD_TWC, r11 - mfspr r11, SPRN_MD_TWC /* get the pte address again */ +#ifdef CONFIG_SWAP + /* do not set the _PAGE_ACCESSED bit of a non-present page */ + andi. r11, r10, _PAGE_PRESENT + beq 4f ori r10, r10, _PAGE_ACCESSED +4: + /* and update pte in table */ +#else + ori r10, r10, _PAGE_ACCESSED +#endif + mfspr r11, SPRN_MD_TWC /* get the pte address again */ stw r10, 0(r11) /* The Linux PTE won't go exactly into the MMU TLB. @@ -507,7 +526,16 @@ DataTLBError: /* Update 'changed', among others. */ +#ifdef CONFIG_SWAP + ori r10, r10, _PAGE_DIRTY|_PAGE_HWWRITE + /* do not set the _PAGE_ACCESSED bit of a non-present page */ + andi. r11, r10, _PAGE_PRESENT + beq 4f + ori r10, r10, _PAGE_ACCESSED +4: +#else ori r10, r10, _PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_HWWRITE +#endif mfspr r11, SPRN_MD_TWC /* Get pte address again */ stw r10, 0(r11) /* and update pte in table */ diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h index d1332bbcbd9..2c79f550272 100644 --- a/include/asm-powerpc/pgtable-ppc32.h +++ b/include/asm-powerpc/pgtable-ppc32.h @@ -339,14 +339,6 @@ extern int icache_44x_need_flush; #define _PMD_PAGE_MASK 0x000c #define _PMD_PAGE_8M 0x000c -/* - * The 8xx TLB miss handler allegedly sets _PAGE_ACCESSED in the PTE - * for an address even if _PAGE_PRESENT is not set, as a performance - * optimization. This is a bug if you ever want to use swap unless - * _PAGE_ACCESSED is 2, which it isn't, or unless you have 8xx-specific - * definitions for __swp_entry etc. below, which would be gross. - * -- paulus - */ #define _PTE_NONE_MASK _PAGE_ACCESSED #else /* CONFIG_6xx */ -- GitLab From a55387e5ad903dec4e281907e4d8e74679ae60e2 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Wed, 20 Feb 2008 12:33:38 -0600 Subject: [PATCH 605/923] [POWERPC] 8xx: Fix wrapper platform for adder875, and combine defconfigs. This fixes the following bug: http://ozlabs.org/pipermail/linuxppc-dev/2008-February/051979.html Separate defconfigs are no longer needed now that CONFIG_DEVICE_TREE is gone. Signed-off-by: Scott Wood Signed-off-by: Kumar Gala --- arch/powerpc/boot/wrapper | 6 +- arch/powerpc/configs/adder875-uboot_defconfig | 798 ------------------ ...5-redboot_defconfig => adder875_defconfig} | 61 +- 3 files changed, 43 insertions(+), 822 deletions(-) delete mode 100644 arch/powerpc/configs/adder875-uboot_defconfig rename arch/powerpc/configs/{adder875-redboot_defconfig => adder875_defconfig} (95%) diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index c3178155311..d50e498a072 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -191,10 +191,14 @@ ps3) ksection=.kernel:vmlinux.bin isection=.kernel:initrd ;; -ep88xc|ep405|redboot*|ep8248e) +ep88xc|ep405|ep8248e) platformo="$object/fixed-head.o $object/$platform.o" binary=y ;; +adder875-redboot) + platformo="$object/fixed-head.o $object/redboot-8xx.o" + binary=y + ;; esac vmz="$tmpdir/`basename \"$kernel\"`.$ext" diff --git a/arch/powerpc/configs/adder875-uboot_defconfig b/arch/powerpc/configs/adder875-uboot_defconfig deleted file mode 100644 index 1faf7ef59a2..00000000000 --- a/arch/powerpc/configs/adder875-uboot_defconfig +++ /dev/null @@ -1,798 +0,0 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.24-rc6 -# Thu Jan 17 16:17:18 2008 -# -# CONFIG_PPC64 is not set - -# -# Processor support -# -# CONFIG_6xx is not set -# CONFIG_PPC_85xx is not set -CONFIG_PPC_8xx=y -# CONFIG_40x is not set -# CONFIG_44x is not set -# CONFIG_E200 is not set -CONFIG_8xx=y -# CONFIG_PPC_MM_SLICES is not set -CONFIG_NOT_COHERENT_CACHE=y -CONFIG_PPC32=y -CONFIG_WORD_SIZE=32 -CONFIG_PPC_MERGE=y -CONFIG_MMU=y -CONFIG_GENERIC_CMOS_UPDATE=y -CONFIG_GENERIC_TIME=y -CONFIG_GENERIC_TIME_VSYSCALL=y -CONFIG_GENERIC_CLOCKEVENTS=y -CONFIG_GENERIC_HARDIRQS=y -CONFIG_IRQ_PER_CPU=y -CONFIG_RWSEM_XCHGADD_ALGORITHM=y -CONFIG_ARCH_HAS_ILOG2_U32=y -CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y -CONFIG_GENERIC_FIND_NEXT_BIT=y -# CONFIG_ARCH_NO_VIRT_TO_BUS is not set -CONFIG_PPC=y -CONFIG_EARLY_PRINTK=y -CONFIG_GENERIC_NVRAM=y -CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y -CONFIG_ARCH_MAY_HAVE_PC_FDC=y -CONFIG_PPC_OF=y -CONFIG_OF=y -# CONFIG_PPC_UDBG_16550 is not set -# CONFIG_GENERIC_TBSYNC is not set -CONFIG_AUDIT_ARCH=y -CONFIG_GENERIC_BUG=y -# CONFIG_DEFAULT_UIMAGE is not set -CONFIG_REDBOOT=y -# CONFIG_PPC_DCR_NATIVE is not set -# CONFIG_PPC_DCR_MMIO is not set -CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" - -# -# General setup -# -CONFIG_EXPERIMENTAL=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 -CONFIG_LOCALVERSION="" -CONFIG_LOCALVERSION_AUTO=y -# CONFIG_SWAP is not set -CONFIG_SYSVIPC=y -CONFIG_SYSVIPC_SYSCTL=y -# CONFIG_POSIX_MQUEUE is not set -# CONFIG_BSD_PROCESS_ACCT is not set -# CONFIG_TASKSTATS is not set -# CONFIG_USER_NS is not set -# CONFIG_PID_NS is not set -# CONFIG_AUDIT is not set -# CONFIG_IKCONFIG is not set -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CGROUPS is not set -CONFIG_FAIR_GROUP_SCHED=y -CONFIG_FAIR_USER_SCHED=y -# CONFIG_FAIR_CGROUP_SCHED is not set -CONFIG_SYSFS_DEPRECATED=y -# CONFIG_RELAY is not set -# CONFIG_BLK_DEV_INITRD is not set -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_SYSCTL=y -CONFIG_EMBEDDED=y -# CONFIG_SYSCTL_SYSCALL is not set -CONFIG_KALLSYMS=y -# CONFIG_KALLSYMS_ALL is not set -# CONFIG_KALLSYMS_EXTRA_PASS is not set -CONFIG_HOTPLUG=y -CONFIG_PRINTK=y -CONFIG_BUG=y -# CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set -# CONFIG_FUTEX is not set -CONFIG_ANON_INODES=y -CONFIG_EPOLL=y -CONFIG_SIGNALFD=y -CONFIG_EVENTFD=y -CONFIG_SHMEM=y -# CONFIG_VM_EVENT_COUNTERS is not set -CONFIG_SLUB_DEBUG=y -# CONFIG_SLAB is not set -CONFIG_SLUB=y -# CONFIG_SLOB is not set -# CONFIG_TINY_SHMEM is not set -CONFIG_BASE_SMALL=1 -# CONFIG_MODULES is not set -CONFIG_BLOCK=y -# CONFIG_LBD is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_LSF is not set -# CONFIG_BLK_DEV_BSG is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -# CONFIG_IOSCHED_AS is not set -CONFIG_IOSCHED_DEADLINE=y -# CONFIG_IOSCHED_CFQ is not set -# CONFIG_DEFAULT_AS is not set -CONFIG_DEFAULT_DEADLINE=y -# CONFIG_DEFAULT_CFQ is not set -# CONFIG_DEFAULT_NOOP is not set -CONFIG_DEFAULT_IOSCHED="deadline" - -# -# Platform support -# -# CONFIG_PPC_MPC52xx is not set -# CONFIG_PPC_MPC5200 is not set -# CONFIG_PPC_CELL is not set -# CONFIG_PPC_CELL_NATIVE is not set -CONFIG_CPM1=y -# CONFIG_MPC8XXFADS is not set -# CONFIG_MPC86XADS is not set -# CONFIG_MPC885ADS is not set -# CONFIG_PPC_EP88XC is not set -CONFIG_PPC_ADDER875=y - -# -# MPC8xx CPM Options -# - -# -# Generic MPC8xx Options -# -CONFIG_8xx_COPYBACK=y -# CONFIG_8xx_CPU6 is not set -CONFIG_8xx_CPU15=y -CONFIG_NO_UCODE_PATCH=y -# CONFIG_USB_SOF_UCODE_PATCH is not set -# CONFIG_I2C_SPI_UCODE_PATCH is not set -# CONFIG_I2C_SPI_SMC1_UCODE_PATCH is not set -# CONFIG_PQ2ADS is not set -# CONFIG_MPIC is not set -# CONFIG_MPIC_WEIRD is not set -# CONFIG_PPC_I8259 is not set -# CONFIG_PPC_RTAS is not set -# CONFIG_MMIO_NVRAM is not set -# CONFIG_PPC_MPC106 is not set -# CONFIG_PPC_970_NAP is not set -# CONFIG_PPC_INDIRECT_IO is not set -# CONFIG_GENERIC_IOMAP is not set -# CONFIG_CPU_FREQ is not set -# CONFIG_CPM2 is not set -CONFIG_PPC_CPM_NEW_BINDING=y -# CONFIG_FSL_ULI1575 is not set -CONFIG_CPM=y - -# -# Kernel options -# -# CONFIG_HIGHMEM is not set -# CONFIG_TICK_ONESHOT is not set -# CONFIG_NO_HZ is not set -# CONFIG_HIGH_RES_TIMERS is not set -CONFIG_GENERIC_CLOCKEVENTS_BUILD=y -# CONFIG_HZ_100 is not set -# CONFIG_HZ_250 is not set -# CONFIG_HZ_300 is not set -CONFIG_HZ_1000=y -CONFIG_HZ=1000 -CONFIG_PREEMPT_NONE=y -# CONFIG_PREEMPT_VOLUNTARY is not set -# CONFIG_PREEMPT is not set -CONFIG_BINFMT_ELF=y -# CONFIG_BINFMT_MISC is not set -# CONFIG_MATH_EMULATION is not set -# CONFIG_8XX_MINIMAL_FPEMU is not set -CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y -CONFIG_ARCH_FLATMEM_ENABLE=y -CONFIG_ARCH_POPULATES_NODE_MAP=y -CONFIG_SELECT_MEMORY_MODEL=y -CONFIG_FLATMEM_MANUAL=y -# CONFIG_DISCONTIGMEM_MANUAL is not set -# CONFIG_SPARSEMEM_MANUAL is not set -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y -# CONFIG_SPARSEMEM_STATIC is not set -# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set -CONFIG_SPLIT_PTLOCK_CPUS=4 -# CONFIG_RESOURCES_64BIT is not set -CONFIG_ZONE_DMA_FLAG=1 -CONFIG_BOUNCE=y -CONFIG_VIRT_TO_BUS=y -# CONFIG_PROC_DEVICETREE is not set -# CONFIG_CMDLINE_BOOL is not set -# CONFIG_PM is not set -CONFIG_SUSPEND_UP_POSSIBLE=y -CONFIG_HIBERNATION_UP_POSSIBLE=y -# CONFIG_SECCOMP is not set -CONFIG_WANT_DEVICE_TREE=y -CONFIG_DEVICE_TREE="adder875-uboot.dts" -CONFIG_ISA_DMA_API=y - -# -# Bus options -# -CONFIG_ZONE_DMA=y -CONFIG_FSL_SOC=y -# CONFIG_PCI is not set -# CONFIG_PCI_DOMAINS is not set -# CONFIG_PCI_SYSCALL is not set -# CONFIG_PCI_QSPAN is not set -# CONFIG_ARCH_SUPPORTS_MSI is not set -# CONFIG_PCCARD is not set - -# -# Advanced setup -# -# CONFIG_ADVANCED_OPTIONS is not set - -# -# Default settings for advanced configuration options are used -# -CONFIG_HIGHMEM_START=0xfe000000 -CONFIG_LOWMEM_SIZE=0x30000000 -CONFIG_KERNEL_START=0xc0000000 -CONFIG_TASK_SIZE=0x80000000 -CONFIG_CONSISTENT_START=0xfd000000 -CONFIG_CONSISTENT_SIZE=0x00200000 -CONFIG_BOOT_LOAD=0x00400000 - -# -# Networking -# -CONFIG_NET=y - -# -# Networking options -# -CONFIG_PACKET=y -# CONFIG_PACKET_MMAP is not set -CONFIG_UNIX=y -# CONFIG_NET_KEY is not set -CONFIG_INET=y -CONFIG_IP_MULTICAST=y -# CONFIG_IP_ADVANCED_ROUTER is not set -CONFIG_IP_FIB_HASH=y -CONFIG_IP_PNP=y -# CONFIG_IP_PNP_DHCP is not set -# CONFIG_IP_PNP_BOOTP is not set -# CONFIG_IP_PNP_RARP is not set -# CONFIG_NET_IPIP is not set -# CONFIG_NET_IPGRE is not set -# CONFIG_IP_MROUTE is not set -# CONFIG_ARPD is not set -CONFIG_SYN_COOKIES=y -# CONFIG_INET_AH is not set -# CONFIG_INET_ESP is not set -# CONFIG_INET_IPCOMP is not set -# CONFIG_INET_XFRM_TUNNEL is not set -# CONFIG_INET_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set -CONFIG_INET_DIAG=y -CONFIG_INET_TCP_DIAG=y -# CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_CUBIC=y -CONFIG_DEFAULT_TCP_CONG="cubic" -# CONFIG_TCP_MD5SIG is not set -# CONFIG_IPV6 is not set -# CONFIG_INET6_XFRM_TUNNEL is not set -# CONFIG_INET6_TUNNEL is not set -# CONFIG_NETWORK_SECMARK is not set -# CONFIG_NETFILTER is not set -# CONFIG_IP_DCCP is not set -# CONFIG_IP_SCTP is not set -# CONFIG_TIPC is not set -# CONFIG_ATM is not set -# CONFIG_BRIDGE is not set -# CONFIG_VLAN_8021Q is not set -# CONFIG_DECNET is not set -# CONFIG_LLC2 is not set -# CONFIG_IPX is not set -# CONFIG_ATALK is not set -# CONFIG_X25 is not set -# CONFIG_LAPB is not set -# CONFIG_ECONET is not set -# CONFIG_WAN_ROUTER is not set -# CONFIG_NET_SCHED is not set - -# -# Network testing -# -# CONFIG_NET_PKTGEN is not set -# CONFIG_HAMRADIO is not set -# CONFIG_IRDA is not set -# CONFIG_BT is not set -# CONFIG_AF_RXRPC is not set - -# -# Wireless -# -# CONFIG_CFG80211 is not set -# CONFIG_WIRELESS_EXT is not set -# CONFIG_MAC80211 is not set -# CONFIG_IEEE80211 is not set -# CONFIG_RFKILL is not set -# CONFIG_NET_9P is not set - -# -# Device Drivers -# - -# -# Generic Driver Options -# -CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set -# CONFIG_DEBUG_DRIVER is not set -# CONFIG_DEBUG_DEVRES is not set -# CONFIG_SYS_HYPERVISOR is not set -# CONFIG_CONNECTOR is not set -CONFIG_MTD=y -# CONFIG_MTD_DEBUG is not set -# CONFIG_MTD_CONCAT is not set -# CONFIG_MTD_PARTITIONS is not set - -# -# User Modules And Translation Layers -# -CONFIG_MTD_CHAR=y -CONFIG_MTD_BLKDEVS=y -CONFIG_MTD_BLOCK=y -# CONFIG_FTL is not set -# CONFIG_NFTL is not set -# CONFIG_INFTL is not set -# CONFIG_RFD_FTL is not set -# CONFIG_SSFDC is not set -# CONFIG_MTD_OOPS is not set - -# -# RAM/ROM/Flash chip drivers -# -CONFIG_MTD_CFI=y -# CONFIG_MTD_JEDECPROBE is not set -CONFIG_MTD_GEN_PROBE=y -# CONFIG_MTD_CFI_ADV_OPTIONS is not set -CONFIG_MTD_MAP_BANK_WIDTH_1=y -CONFIG_MTD_MAP_BANK_WIDTH_2=y -CONFIG_MTD_MAP_BANK_WIDTH_4=y -# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set -# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set -CONFIG_MTD_CFI_I1=y -CONFIG_MTD_CFI_I2=y -# CONFIG_MTD_CFI_I4 is not set -# CONFIG_MTD_CFI_I8 is not set -# CONFIG_MTD_CFI_INTELEXT is not set -CONFIG_MTD_CFI_AMDSTD=y -# CONFIG_MTD_CFI_STAA is not set -CONFIG_MTD_CFI_UTIL=y -# CONFIG_MTD_RAM is not set -# CONFIG_MTD_ROM is not set -# CONFIG_MTD_ABSENT is not set - -# -# Mapping drivers for chip access -# -# CONFIG_MTD_COMPLEX_MAPPINGS is not set -# CONFIG_MTD_PHYSMAP is not set -CONFIG_MTD_PHYSMAP_OF=y -# CONFIG_MTD_CFI_FLAGADM is not set -# CONFIG_MTD_PLATRAM is not set - -# -# Self-contained MTD device drivers -# -# CONFIG_MTD_SLRAM is not set -# CONFIG_MTD_PHRAM is not set -# CONFIG_MTD_MTDRAM is not set -# CONFIG_MTD_BLOCK2MTD is not set - -# -# Disk-On-Chip Device Drivers -# -# CONFIG_MTD_DOC2000 is not set -# CONFIG_MTD_DOC2001 is not set -# CONFIG_MTD_DOC2001PLUS is not set -# CONFIG_MTD_NAND is not set -# CONFIG_MTD_ONENAND is not set - -# -# UBI - Unsorted block images -# -# CONFIG_MTD_UBI is not set -CONFIG_OF_DEVICE=y -# CONFIG_PARPORT is not set -# CONFIG_BLK_DEV is not set -# CONFIG_MISC_DEVICES is not set -# CONFIG_IDE is not set - -# -# SCSI device support -# -# CONFIG_RAID_ATTRS is not set -# CONFIG_SCSI is not set -# CONFIG_SCSI_DMA is not set -# CONFIG_SCSI_NETLINK is not set -# CONFIG_ATA is not set -# CONFIG_MD is not set -# CONFIG_MACINTOSH_DRIVERS is not set -CONFIG_NETDEVICES=y -# CONFIG_NETDEVICES_MULTIQUEUE is not set -# CONFIG_DUMMY is not set -# CONFIG_BONDING is not set -# CONFIG_MACVLAN is not set -# CONFIG_EQUALIZER is not set -# CONFIG_TUN is not set -# CONFIG_VETH is not set -CONFIG_PHYLIB=y - -# -# MII PHY device drivers -# -# CONFIG_MARVELL_PHY is not set -CONFIG_DAVICOM_PHY=y -# CONFIG_QSEMI_PHY is not set -# CONFIG_LXT_PHY is not set -# CONFIG_CICADA_PHY is not set -# CONFIG_VITESSE_PHY is not set -# CONFIG_SMSC_PHY is not set -# CONFIG_BROADCOM_PHY is not set -# CONFIG_ICPLUS_PHY is not set -# CONFIG_FIXED_PHY is not set -# CONFIG_MDIO_BITBANG is not set -CONFIG_NET_ETHERNET=y -CONFIG_MII=y -# CONFIG_IBM_NEW_EMAC_ZMII is not set -# CONFIG_IBM_NEW_EMAC_RGMII is not set -# CONFIG_IBM_NEW_EMAC_TAH is not set -# CONFIG_IBM_NEW_EMAC_EMAC4 is not set -# CONFIG_B44 is not set -CONFIG_FS_ENET=y -# CONFIG_FS_ENET_HAS_SCC is not set -CONFIG_FS_ENET_HAS_FEC=y -CONFIG_FS_ENET_MDIO_FEC=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set - -# -# Wireless LAN -# -# CONFIG_WLAN_PRE80211 is not set -# CONFIG_WLAN_80211 is not set -# CONFIG_WAN is not set -# CONFIG_PPP is not set -# CONFIG_SLIP is not set -# CONFIG_SHAPER is not set -# CONFIG_NETCONSOLE is not set -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set -# CONFIG_ISDN is not set -# CONFIG_PHONE is not set - -# -# Input device support -# -CONFIG_INPUT=y -# CONFIG_INPUT_FF_MEMLESS is not set -# CONFIG_INPUT_POLLDEV is not set - -# -# Userland interfaces -# -CONFIG_INPUT_MOUSEDEV=y -CONFIG_INPUT_MOUSEDEV_PSAUX=y -CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 -CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 -# CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_EVDEV is not set -# CONFIG_INPUT_EVBUG is not set - -# -# Input Device Drivers -# -CONFIG_INPUT_KEYBOARD=y -CONFIG_KEYBOARD_ATKBD=y -# CONFIG_KEYBOARD_SUNKBD is not set -# CONFIG_KEYBOARD_LKKBD is not set -# CONFIG_KEYBOARD_XTKBD is not set -# CONFIG_KEYBOARD_NEWTON is not set -# CONFIG_KEYBOARD_STOWAWAY is not set -CONFIG_INPUT_MOUSE=y -CONFIG_MOUSE_PS2=y -CONFIG_MOUSE_PS2_ALPS=y -CONFIG_MOUSE_PS2_LOGIPS2PP=y -CONFIG_MOUSE_PS2_SYNAPTICS=y -CONFIG_MOUSE_PS2_LIFEBOOK=y -CONFIG_MOUSE_PS2_TRACKPOINT=y -# CONFIG_MOUSE_PS2_TOUCHKIT is not set -# CONFIG_MOUSE_SERIAL is not set -# CONFIG_MOUSE_VSXXXAA is not set -# CONFIG_INPUT_JOYSTICK is not set -# CONFIG_INPUT_TABLET is not set -# CONFIG_INPUT_TOUCHSCREEN is not set -# CONFIG_INPUT_MISC is not set - -# -# Hardware I/O ports -# -CONFIG_SERIO=y -CONFIG_SERIO_I8042=y -CONFIG_SERIO_SERPORT=y -CONFIG_SERIO_LIBPS2=y -# CONFIG_SERIO_RAW is not set -# CONFIG_GAMEPORT is not set - -# -# Character devices -# -# CONFIG_VT is not set -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -# CONFIG_SERIAL_8250 is not set - -# -# Non-8250 serial port support -# -# CONFIG_SERIAL_UARTLITE is not set -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -CONFIG_SERIAL_CPM=y -CONFIG_SERIAL_CPM_CONSOLE=y -# CONFIG_SERIAL_CPM_SCC1 is not set -# CONFIG_SERIAL_CPM_SCC2 is not set -# CONFIG_SERIAL_CPM_SCC3 is not set -# CONFIG_SERIAL_CPM_SCC4 is not set -CONFIG_SERIAL_CPM_SMC1=y -CONFIG_SERIAL_CPM_SMC2=y -CONFIG_UNIX98_PTYS=y -# CONFIG_LEGACY_PTYS is not set -# CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y -# CONFIG_NVRAM is not set -CONFIG_GEN_RTC=y -# CONFIG_GEN_RTC_X is not set -# CONFIG_R3964 is not set -# CONFIG_RAW_DRIVER is not set -# CONFIG_TCG_TPM is not set -# CONFIG_I2C is not set - -# -# SPI support -# -# CONFIG_SPI is not set -# CONFIG_SPI_MASTER is not set -# CONFIG_W1 is not set -# CONFIG_POWER_SUPPLY is not set -# CONFIG_HWMON is not set -# CONFIG_WATCHDOG is not set - -# -# Sonics Silicon Backplane -# -CONFIG_SSB_POSSIBLE=y -# CONFIG_SSB is not set - -# -# Multifunction device drivers -# -# CONFIG_MFD_SM501 is not set - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -CONFIG_DAB=y - -# -# Graphics support -# -# CONFIG_VGASTATE is not set -CONFIG_VIDEO_OUTPUT_CONTROL=y -# CONFIG_FB is not set -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set - -# -# Display device support -# -# CONFIG_DISPLAY_SUPPORT is not set - -# -# Sound -# -# CONFIG_SOUND is not set -# CONFIG_HID_SUPPORT is not set -# CONFIG_USB_SUPPORT is not set -# CONFIG_MMC is not set -# CONFIG_NEW_LEDS is not set -# CONFIG_EDAC is not set -# CONFIG_RTC_CLASS is not set - -# -# Userspace I/O -# -# CONFIG_UIO is not set - -# -# File systems -# -# CONFIG_EXT2_FS is not set -# CONFIG_EXT3_FS is not set -# CONFIG_EXT4DEV_FS is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -# CONFIG_FS_POSIX_ACL is not set -# CONFIG_XFS_FS is not set -# CONFIG_GFS2_FS is not set -# CONFIG_OCFS2_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_ROMFS_FS is not set -# CONFIG_INOTIFY is not set -# CONFIG_QUOTA is not set -# CONFIG_DNOTIFY is not set -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set -# CONFIG_FUSE_FS is not set - -# -# CD-ROM/DVD Filesystems -# -# CONFIG_ISO9660_FS is not set -# CONFIG_UDF_FS is not set - -# -# DOS/FAT/NT Filesystems -# -# CONFIG_MSDOS_FS is not set -# CONFIG_VFAT_FS is not set -# CONFIG_NTFS_FS is not set - -# -# Pseudo filesystems -# -CONFIG_PROC_FS=y -# CONFIG_PROC_KCORE is not set -CONFIG_PROC_SYSCTL=y -CONFIG_SYSFS=y -CONFIG_TMPFS=y -# CONFIG_TMPFS_POSIX_ACL is not set -# CONFIG_HUGETLB_PAGE is not set -# CONFIG_CONFIGFS_FS is not set - -# -# Miscellaneous filesystems -# -# CONFIG_ADFS_FS is not set -# CONFIG_AFFS_FS is not set -# CONFIG_HFS_FS is not set -# CONFIG_HFSPLUS_FS is not set -# CONFIG_BEFS_FS is not set -# CONFIG_BFS_FS is not set -# CONFIG_EFS_FS is not set -# CONFIG_JFFS2_FS is not set -CONFIG_CRAMFS=y -# CONFIG_VXFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_SYSV_FS is not set -# CONFIG_UFS_FS is not set -CONFIG_NETWORK_FILESYSTEMS=y -CONFIG_NFS_FS=y -CONFIG_NFS_V3=y -# CONFIG_NFS_V3_ACL is not set -# CONFIG_NFS_V4 is not set -# CONFIG_NFS_DIRECTIO is not set -# CONFIG_NFSD is not set -CONFIG_ROOT_NFS=y -CONFIG_LOCKD=y -CONFIG_LOCKD_V4=y -CONFIG_NFS_COMMON=y -CONFIG_SUNRPC=y -# CONFIG_SUNRPC_BIND34 is not set -# CONFIG_RPCSEC_GSS_KRB5 is not set -# CONFIG_RPCSEC_GSS_SPKM3 is not set -# CONFIG_SMB_FS is not set -# CONFIG_CIFS is not set -# CONFIG_NCP_FS is not set -# CONFIG_CODA_FS is not set -# CONFIG_AFS_FS is not set - -# -# Partition Types -# -CONFIG_PARTITION_ADVANCED=y -# CONFIG_ACORN_PARTITION is not set -# CONFIG_OSF_PARTITION is not set -# CONFIG_AMIGA_PARTITION is not set -# CONFIG_ATARI_PARTITION is not set -# CONFIG_MAC_PARTITION is not set -CONFIG_MSDOS_PARTITION=y -# CONFIG_BSD_DISKLABEL is not set -# CONFIG_MINIX_SUBPARTITION is not set -# CONFIG_SOLARIS_X86_PARTITION is not set -# CONFIG_UNIXWARE_DISKLABEL is not set -# CONFIG_LDM_PARTITION is not set -# CONFIG_SGI_PARTITION is not set -# CONFIG_ULTRIX_PARTITION is not set -# CONFIG_SUN_PARTITION is not set -# CONFIG_KARMA_PARTITION is not set -# CONFIG_EFI_PARTITION is not set -# CONFIG_SYSV68_PARTITION is not set -# CONFIG_NLS is not set -# CONFIG_DLM is not set -# CONFIG_UCC_SLOW is not set - -# -# Library routines -# -# CONFIG_CRC_CCITT is not set -# CONFIG_CRC16 is not set -# CONFIG_CRC_ITU_T is not set -# CONFIG_CRC32 is not set -# CONFIG_CRC7 is not set -# CONFIG_LIBCRC32C is not set -CONFIG_ZLIB_INFLATE=y -CONFIG_HAS_IOMEM=y -CONFIG_HAS_IOPORT=y -CONFIG_HAS_DMA=y -CONFIG_INSTRUMENTATION=y -# CONFIG_PROFILING is not set -# CONFIG_MARKERS is not set - -# -# Kernel hacking -# -# CONFIG_PRINTK_TIME is not set -CONFIG_ENABLE_WARN_DEPRECATED=y -CONFIG_ENABLE_MUST_CHECK=y -CONFIG_MAGIC_SYSRQ=y -# CONFIG_UNUSED_SYMBOLS is not set -# CONFIG_DEBUG_FS is not set -# CONFIG_HEADERS_CHECK is not set -CONFIG_DEBUG_KERNEL=y -# CONFIG_DEBUG_SHIRQ is not set -CONFIG_DETECT_SOFTLOCKUP=y -CONFIG_SCHED_DEBUG=y -# CONFIG_SCHEDSTATS is not set -# CONFIG_TIMER_STATS is not set -# CONFIG_SLUB_DEBUG_ON is not set -# CONFIG_DEBUG_SPINLOCK is not set -# CONFIG_DEBUG_MUTEXES is not set -# CONFIG_DEBUG_SPINLOCK_SLEEP is not set -# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set -# CONFIG_DEBUG_KOBJECT is not set -CONFIG_DEBUG_BUGVERBOSE=y -CONFIG_DEBUG_INFO=y -# CONFIG_DEBUG_VM is not set -# CONFIG_DEBUG_LIST is not set -# CONFIG_DEBUG_SG is not set -CONFIG_FORCED_INLINING=y -# CONFIG_BOOT_PRINTK_DELAY is not set -# CONFIG_FAULT_INJECTION is not set -# CONFIG_SAMPLES is not set -# CONFIG_DEBUG_STACKOVERFLOW is not set -# CONFIG_DEBUG_STACK_USAGE is not set -# CONFIG_DEBUG_PAGEALLOC is not set -# CONFIG_DEBUGGER is not set -# CONFIG_BDI_SWITCH is not set -# CONFIG_PPC_EARLY_DEBUG is not set - -# -# Security options -# -# CONFIG_KEYS is not set -# CONFIG_SECURITY is not set -# CONFIG_SECURITY_FILE_CAPABILITIES is not set -# CONFIG_CRYPTO is not set -# CONFIG_PPC_CLOCK is not set -CONFIG_PPC_LIB_RHEAP=y diff --git a/arch/powerpc/configs/adder875-redboot_defconfig b/arch/powerpc/configs/adder875_defconfig similarity index 95% rename from arch/powerpc/configs/adder875-redboot_defconfig rename to arch/powerpc/configs/adder875_defconfig index cab5f9b6456..a3cc94a2ff0 100644 --- a/arch/powerpc/configs/adder875-redboot_defconfig +++ b/arch/powerpc/configs/adder875_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.24-rc6 -# Thu Jan 17 16:17:38 2008 +# Linux kernel version: 2.6.25-rc2 +# Wed Feb 20 12:26:07 2008 # # CONFIG_PPC64 is not set @@ -26,6 +26,7 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +# CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y @@ -64,17 +65,18 @@ CONFIG_SYSVIPC_SYSCTL=y # CONFIG_POSIX_MQUEUE is not set # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_USER_NS is not set -# CONFIG_PID_NS is not set # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set CONFIG_LOG_BUF_SHIFT=14 # CONFIG_CGROUPS is not set +CONFIG_GROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y -CONFIG_FAIR_USER_SCHED=y -# CONFIG_FAIR_CGROUP_SCHED is not set +# CONFIG_RT_GROUP_SCHED is not set +CONFIG_USER_SCHED=y +# CONFIG_CGROUP_SCHED is not set CONFIG_SYSFS_DEPRECATED=y # CONFIG_RELAY is not set +# CONFIG_NAMESPACES is not set # CONFIG_BLK_DEV_INITRD is not set # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SYSCTL=y @@ -87,11 +89,13 @@ CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y # CONFIG_ELF_CORE is not set +CONFIG_COMPAT_BRK=y # CONFIG_BASE_FULL is not set # CONFIG_FUTEX is not set CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y # CONFIG_VM_EVENT_COUNTERS is not set @@ -99,6 +103,12 @@ CONFIG_SLUB_DEBUG=y # CONFIG_SLAB is not set CONFIG_SLUB=y # CONFIG_SLOB is not set +# CONFIG_PROFILING is not set +# CONFIG_MARKERS is not set +CONFIG_HAVE_OPROFILE=y +CONFIG_HAVE_KPROBES=y +CONFIG_PROC_PAGE_MONITOR=y +CONFIG_SLABINFO=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=1 # CONFIG_MODULES is not set @@ -120,12 +130,14 @@ CONFIG_DEFAULT_DEADLINE=y # CONFIG_DEFAULT_CFQ is not set # CONFIG_DEFAULT_NOOP is not set CONFIG_DEFAULT_IOSCHED="deadline" +CONFIG_CLASSIC_RCU=y +# CONFIG_PREEMPT_RCU is not set # # Platform support # -# CONFIG_PPC_MPC52xx is not set -# CONFIG_PPC_MPC5200 is not set +# CONFIG_PPC_MPC512x is not set +# CONFIG_PPC_MPC5121 is not set # CONFIG_PPC_CELL is not set # CONFIG_PPC_CELL_NATIVE is not set CONFIG_CPM1=y @@ -150,6 +162,7 @@ CONFIG_NO_UCODE_PATCH=y # CONFIG_I2C_SPI_UCODE_PATCH is not set # CONFIG_I2C_SPI_SMC1_UCODE_PATCH is not set # CONFIG_PQ2ADS is not set +# CONFIG_IPIC is not set # CONFIG_MPIC is not set # CONFIG_MPIC_WEIRD is not set # CONFIG_PPC_I8259 is not set @@ -160,7 +173,6 @@ CONFIG_NO_UCODE_PATCH=y # CONFIG_PPC_INDIRECT_IO is not set # CONFIG_GENERIC_IOMAP is not set # CONFIG_CPU_FREQ is not set -# CONFIG_CPM2 is not set CONFIG_PPC_CPM_NEW_BINDING=y # CONFIG_FSL_ULI1575 is not set CONFIG_CPM=y @@ -178,14 +190,19 @@ CONFIG_GENERIC_CLOCKEVENTS_BUILD=y # CONFIG_HZ_300 is not set CONFIG_HZ_1000=y CONFIG_HZ=1000 +# CONFIG_SCHED_HRTICK is not set CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set +CONFIG_RCU_TRACE=y CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set # CONFIG_MATH_EMULATION is not set # CONFIG_8XX_MINIMAL_FPEMU is not set +# CONFIG_IOMMU_HELPER is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y +CONFIG_ARCH_HAS_WALK_MEMORY=y +CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_SELECT_MEMORY_MODEL=y @@ -204,11 +221,7 @@ CONFIG_VIRT_TO_BUS=y # CONFIG_PROC_DEVICETREE is not set # CONFIG_CMDLINE_BOOL is not set # CONFIG_PM is not set -CONFIG_SUSPEND_UP_POSSIBLE=y -CONFIG_HIBERNATION_UP_POSSIBLE=y # CONFIG_SECCOMP is not set -CONFIG_WANT_DEVICE_TREE=y -CONFIG_DEVICE_TREE="adder875-redboot.dts" CONFIG_ISA_DMA_API=y # @@ -305,6 +318,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # # CONFIG_NET_PKTGEN is not set # CONFIG_HAMRADIO is not set +# CONFIG_CAN is not set # CONFIG_IRDA is not set # CONFIG_BT is not set # CONFIG_AF_RXRPC is not set @@ -411,6 +425,7 @@ CONFIG_OF_DEVICE=y # CONFIG_PARPORT is not set # CONFIG_BLK_DEV is not set # CONFIG_MISC_DEVICES is not set +CONFIG_HAVE_IDE=y # CONFIG_IDE is not set # @@ -445,6 +460,7 @@ CONFIG_DAVICOM_PHY=y # CONFIG_SMSC_PHY is not set # CONFIG_BROADCOM_PHY is not set # CONFIG_ICPLUS_PHY is not set +# CONFIG_REALTEK_PHY is not set # CONFIG_FIXED_PHY is not set # CONFIG_MDIO_BITBANG is not set CONFIG_NET_ETHERNET=y @@ -469,7 +485,6 @@ CONFIG_FS_ENET_MDIO_FEC=y # CONFIG_WAN is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set -# CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set @@ -574,6 +589,7 @@ CONFIG_GEN_RTC=y # CONFIG_W1 is not set # CONFIG_POWER_SUPPLY is not set # CONFIG_HWMON is not set +CONFIG_THERMAL=y # CONFIG_WATCHDOG is not set # @@ -614,6 +630,7 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_HID_SUPPORT is not set # CONFIG_USB_SUPPORT is not set # CONFIG_MMC is not set +# CONFIG_MEMSTICK is not set # CONFIG_NEW_LEDS is not set # CONFIG_EDAC is not set # CONFIG_RTC_CLASS is not set @@ -635,11 +652,9 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_ROMFS_FS is not set +# CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set # CONFIG_QUOTA is not set -# CONFIG_DNOTIFY is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_FUSE_FS is not set @@ -682,8 +697,10 @@ CONFIG_TMPFS=y # CONFIG_JFFS2_FS is not set CONFIG_CRAMFS=y # CONFIG_VXFS_FS is not set +# CONFIG_MINIX_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set +# CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set CONFIG_NETWORK_FILESYSTEMS=y @@ -730,7 +747,6 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_SYSV68_PARTITION is not set # CONFIG_NLS is not set # CONFIG_DLM is not set -# CONFIG_UCC_SLOW is not set # # Library routines @@ -745,9 +761,6 @@ CONFIG_ZLIB_INFLATE=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y -CONFIG_INSTRUMENTATION=y -# CONFIG_PROFILING is not set -# CONFIG_MARKERS is not set # # Kernel hacking @@ -757,7 +770,7 @@ CONFIG_ENABLE_WARN_DEPRECATED=y CONFIG_ENABLE_MUST_CHECK=y CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set -# CONFIG_DEBUG_FS is not set +CONFIG_DEBUG_FS=y # CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y # CONFIG_DEBUG_SHIRQ is not set @@ -766,6 +779,7 @@ CONFIG_SCHED_DEBUG=y # CONFIG_SCHEDSTATS is not set # CONFIG_TIMER_STATS is not set # CONFIG_SLUB_DEBUG_ON is not set +# CONFIG_SLUB_STATS is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set @@ -776,14 +790,15 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set -CONFIG_FORCED_INLINING=y # CONFIG_BOOT_PRINTK_DELAY is not set +# CONFIG_BACKTRACE_SELF_TEST is not set # CONFIG_FAULT_INJECTION is not set # CONFIG_SAMPLES is not set # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_DEBUG_PAGEALLOC is not set # CONFIG_DEBUGGER is not set +# CONFIG_VIRQ_DEBUG is not set # CONFIG_BDI_SWITCH is not set # CONFIG_PPC_EARLY_DEBUG is not set -- GitLab From 6f913160fa8e8de5ea2746a2f6b1d65c67e092b0 Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Mon, 3 Mar 2008 11:11:30 -0600 Subject: [PATCH 606/923] [POWERPC] QE: Fix QE firmware uploading limit Fix a typo in qe_upload_firmware() that prevented uploading firmware on systems with more than one RISC core. Signed-off-by: Timur Tabi Signed-off-by: Kumar Gala --- arch/powerpc/sysdev/qe_lib/qe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index 6efbd5e5bb1..f963fbf21ef 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -509,7 +509,7 @@ int qe_upload_firmware(const struct qe_firmware *firmware) } /* Validate some of the fields */ - if ((firmware->count < 1) || (firmware->count >= MAX_QE_RISC)) { + if ((firmware->count < 1) || (firmware->count > MAX_QE_RISC)) { printk(KERN_ERR "qe-firmware: invalid data\n"); return -EINVAL; } -- GitLab From e40cd10ccff3d9fbffd57b93780bee4b7b9bff51 Mon Sep 17 00:00:00 2001 From: Aurelien Jarno Date: Wed, 5 Mar 2008 19:14:24 +0100 Subject: [PATCH 607/923] x86: clear DF before calling signal handler The Linux kernel currently does not clear the direction flag before calling a signal handler, whereas the x86/x86-64 ABI requires that. Linux had this behavior/bug forever, but this becomes a real problem with gcc version 4.3, which assumes that the direction flag is correctly cleared at the entry of a function. This patches changes the setup_frame() functions to clear the direction before entering the signal handler. Signed-off-by: Aurelien Jarno Signed-off-by: Ingo Molnar Acked-by: H. Peter Anvin --- arch/x86/ia32/ia32_signal.c | 4 ++-- arch/x86/kernel/signal_32.c | 4 ++-- arch/x86/kernel/signal_64.c | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c index 1c0503bdfb1..5e7771a3ba2 100644 --- a/arch/x86/ia32/ia32_signal.c +++ b/arch/x86/ia32/ia32_signal.c @@ -500,7 +500,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka, regs->ss = __USER32_DS; set_fs(USER_DS); - regs->flags &= ~X86_EFLAGS_TF; + regs->flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_DF); if (test_thread_flag(TIF_SINGLESTEP)) ptrace_notify(SIGTRAP); @@ -600,7 +600,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, regs->ss = __USER32_DS; set_fs(USER_DS); - regs->flags &= ~X86_EFLAGS_TF; + regs->flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_DF); if (test_thread_flag(TIF_SINGLESTEP)) ptrace_notify(SIGTRAP); diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c index caee1f002fe..0157a6f0f41 100644 --- a/arch/x86/kernel/signal_32.c +++ b/arch/x86/kernel/signal_32.c @@ -407,7 +407,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, * The tracer may want to single-step inside the * handler too. */ - regs->flags &= ~TF_MASK; + regs->flags &= ~(TF_MASK | X86_EFLAGS_DF); if (test_thread_flag(TIF_SINGLESTEP)) ptrace_notify(SIGTRAP); @@ -500,7 +500,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, * The tracer may want to single-step inside the * handler too. */ - regs->flags &= ~TF_MASK; + regs->flags &= ~(TF_MASK | X86_EFLAGS_DF); if (test_thread_flag(TIF_SINGLESTEP)) ptrace_notify(SIGTRAP); diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c index 7347bb14e30..56b72fb67f9 100644 --- a/arch/x86/kernel/signal_64.c +++ b/arch/x86/kernel/signal_64.c @@ -295,7 +295,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, see include/asm-x86_64/uaccess.h for details. */ set_fs(USER_DS); - regs->flags &= ~X86_EFLAGS_TF; + regs->flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_DF); if (test_thread_flag(TIF_SINGLESTEP)) ptrace_notify(SIGTRAP); #ifdef DEBUG_SIG -- GitLab From 609b5297bcfb7b39b7a4137e9ec48407a8c96763 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 5 Mar 2008 08:35:14 +0000 Subject: [PATCH 608/923] x86: fix merge mistake in i387.c convert_fxsr_to_user() in 2.6.24's i387_32.c did this, and convert_to_fxsr() also does the inverse, so I assume it's an oversight that it is no longer being done. [ mingo@elte.hu: we encode it this way because there's no space for the 'FPU Last Instruction Opcode' (->fop) field in the legacy user_i387_ia32_struct that PTRACE_GETFPREGS/PTRACE_SETFPREGS uses. it's probably pure legacy - i'd be surprised if any user-space relied on the FPU Last Opcode in any way. But indeed we used to do it previously so the most conservative thing is to preserve that piece of information. ] Signed-off-by: Jan Beulich Signed-off-by: Ingo Molnar --- arch/x86/kernel/i387.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c index 60fe8015756..d2e39e69aaf 100644 --- a/arch/x86/kernel/i387.c +++ b/arch/x86/kernel/i387.c @@ -261,7 +261,7 @@ static void convert_from_fxsr(struct user_i387_ia32_struct *env, } #else env->fip = fxsave->fip; - env->fcs = fxsave->fcs; + env->fcs = (u16) fxsave->fcs | ((u32) fxsave->fop << 16); env->foo = fxsave->foo; env->fos = fxsave->fos; #endif -- GitLab From d032b31a3a22a571cb50c0b5dffbe9ba9328d6e2 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 5 Mar 2008 08:36:48 +0000 Subject: [PATCH 609/923] x86: fix typo in step.c TIF_DEBUGCTLMSR has no meaning in the actual MSR... Signed-off-by: Jan Beulich Signed-off-by: Ingo Molnar --- arch/x86/kernel/step.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c index 2ef1a5f8d67..9d406cdc847 100644 --- a/arch/x86/kernel/step.c +++ b/arch/x86/kernel/step.c @@ -166,7 +166,7 @@ static void enable_step(struct task_struct *child, bool block) child->thread.debugctlmsr | DEBUGCTLMSR_BTF); } else { write_debugctlmsr(child, - child->thread.debugctlmsr & ~TIF_DEBUGCTLMSR); + child->thread.debugctlmsr & ~DEBUGCTLMSR_BTF); if (!child->thread.debugctlmsr) clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR); @@ -189,7 +189,7 @@ void user_disable_single_step(struct task_struct *child) * Make sure block stepping (BTF) is disabled. */ write_debugctlmsr(child, - child->thread.debugctlmsr & ~TIF_DEBUGCTLMSR); + child->thread.debugctlmsr & ~DEBUGCTLMSR_BTF); if (!child->thread.debugctlmsr) clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR); -- GitLab From 7432d149fda8ce9ead9df91e577b83ce52ad5f65 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 6 Mar 2008 18:29:43 +0100 Subject: [PATCH 610/923] x86: re-add reboot fixups Jan Beulich noticed that the reboot fixups went missing during reboot.c unification. (commit 4d022e35fd7e07c522c7863fee6f07e53cf3fc14) Geode and a few other rare boards with special reboot quirks are affected. Reported-by: Jan Beulich Signed-off-by: Jan Beulich Signed-off-by: Ingo Molnar --- arch/x86/kernel/reboot.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 7fd6ac43e4a..55ceb8cdef7 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -326,6 +326,10 @@ static inline void kb_wait(void) } } +void __attribute__((weak)) mach_reboot_fixups(void) +{ +} + static void native_machine_emergency_restart(void) { int i; @@ -337,6 +341,8 @@ static void native_machine_emergency_restart(void) /* Could also try the reset bit in the Hammer NB */ switch (reboot_type) { case BOOT_KBD: + mach_reboot_fixups(); /* for board specific fixups */ + for (i = 0; i < 10; i++) { kb_wait(); udelay(50); -- GitLab From 1722770f131bb5c8e238825f3eba2efa331483a2 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Thu, 6 Mar 2008 10:56:45 +0100 Subject: [PATCH 611/923] x86-boot: don't request VBE2 information The new x86 setup code (4fd06960f120) broke booting on an old P3/500MHz with an onboard Voodoo3 of mine. After debugging it, it turned out to be caused by the fact that the vesa probing now asks for VBE2 data. Disassembing the video BIOS shows that it overflows the vesa_general_info structure when VBE2 data is requested because the source addresses for the information strings which get strcpy'ed to the buffer lie outside the 32K BIOS code (and hence contain long sequences of 0xff's). E.G.: get_vbe_controller_info: 00002A9C 60 pushaw 00002A9D 1E push ds 00002A9E 0E push cs 00002A9F 1F pop ds 00002AA0 2BC9 sub cx,cx 00002AA2 6626813D56424532 cmp dword [es:di],0x32454256 ; "VBE2" 00002AAA 7501 jnz .1 00002AAC 41 inc cx .1: 00002AAD 51 push cx 00002AAE B91400 mov cx,0x14 00002AB1 BED47F mov si, controller_header 00002AB4 57 push di 00002AB5 F3A4 rep movsb ; copy vbe1.2 header 00002AB7 B9EC00 mov cx,0xec 00002ABA 2AC0 sub al,al 00002ABC F3AA rep stosb ; zero pad remainder 00002ABE 5F pop di 00002ABF E8EB0D call word get_memory 00002AC2 C1E002 shl ax,0x2 00002AC5 26894512 mov [es:di+0x12],ax ; total memory 00002AC9 26C745040003 mov word [es:di+0x4],0x300 ; VBE version 00002ACF 268C4D08 mov [es:di+0x8],cs 00002AD3 268C4D10 mov [es:di+0x10],cs 00002AD7 59 pop cx 00002AD8 E361 jcxz .done ; VBE2 requested? 00002ADA 8D9D0001 lea bx,[di+0x100] 00002ADE 53 push bx 00002ADF 87DF xchg bx,di ; di now points to 2nd half 00002AE1 26C747140001 mov word [es:bx+0x14],0x100 ; sw rev 00002AE7 26897F06 mov [es:bx+0x6],di ; oem string 00002AEB 268C4708 mov [es:bx+0x8],es 00002AEF BE5280 mov si,0x8052 ; oem string 00002AF2 E87A1B call word strcpy 00002AF5 26897F0E mov [es:bx+0xe],di ; video mode list 00002AF9 268C4710 mov [es:bx+0x10],es 00002AFD B91E00 mov cx,0x1e 00002B00 BEE87F mov si,vidmodes 00002B03 F3A5 rep movsw 00002B05 26897F16 mov [es:bx+0x16],di ; oem vendor 00002B09 268C4718 mov [es:bx+0x18],es 00002B0D BE2480 mov si,0x8024 ; oem vendor 00002B10 E85C1B call word strcpy 00002B13 26897F1A mov [es:bx+0x1a],di ; oem product 00002B17 268C471C mov [es:bx+0x1c],es 00002B1B BE3880 mov si,0x8038 ; oem product 00002B1E E84E1B call word strcpy 00002B21 26897F1E mov [es:bx+0x1e],di ; oem product rev 00002B25 268C4720 mov [es:bx+0x20],es 00002B29 BE4580 mov si,0x8045 ; oem product rev 00002B2C E8401B call word strcpy 00002B2F 58 pop ax 00002B30 B90001 mov cx,0x100 00002B33 2BCF sub cx,di 00002B35 03C8 add cx,ax 00002B37 2AC0 sub al,al 00002B39 F3AA rep stosb ; zero pad .done: 00002B3B 1F pop ds 00002B3C 61 popaw 00002B3D B84F00 mov ax,0x4f 00002B40 C3 ret (The full BIOS can be found at http://peter.korsgaard.com/vgabios.bin if interested). The old setup code didn't ask for VBE2 info, and the new code doesn't actually do anything with the extra information, so the fix is to simply not request it. Other BIOS'es might have the same problem. Signed-off-by: Peter Korsgaard Signed-off-by: Ingo Molnar --- arch/x86/boot/vesa.h | 9 +-------- arch/x86/boot/video-vesa.c | 2 -- 2 files changed, 1 insertion(+), 10 deletions(-) diff --git a/arch/x86/boot/vesa.h b/arch/x86/boot/vesa.h index ff5b73cd406..468e444622c 100644 --- a/arch/x86/boot/vesa.h +++ b/arch/x86/boot/vesa.h @@ -26,17 +26,10 @@ struct vesa_general_info { far_ptr video_mode_ptr; /* 14 */ u16 total_memory; /* 18 */ - u16 oem_software_rev; /* 20 */ - far_ptr oem_vendor_name_ptr; /* 22 */ - far_ptr oem_product_name_ptr; /* 26 */ - far_ptr oem_product_rev_ptr; /* 30 */ - - u8 reserved[222]; /* 34 */ - u8 oem_data[256]; /* 256 */ + u8 reserved[236]; /* 20 */ } __attribute__ ((packed)); #define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24)) -#define VBE2_MAGIC ('V' + ('B' << 8) + ('E' << 16) + ('2' << 24)) struct vesa_mode_info { u16 mode_attr; /* 0 */ diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c index 662dd2f1306..419b5c27337 100644 --- a/arch/x86/boot/video-vesa.c +++ b/arch/x86/boot/video-vesa.c @@ -37,8 +37,6 @@ static int vesa_probe(void) video_vesa.modes = GET_HEAP(struct mode_info, 0); - vginfo.signature = VBE2_MAGIC; - ax = 0x4f00; di = (size_t)&vginfo; asm(INT10 -- GitLab From 810b38179e9e4d4f57b4b733767bb08f8291a965 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 29 Feb 2008 15:21:01 -0500 Subject: [PATCH 612/923] sched: retain vruntime Kei Tokunaga reported an interactivity problem when moving tasks between control groups. Tasks would retain their old vruntime when moved between groups, this can cause funny lags. Re-set the vruntime on group move to fit within the new tree. Reported-by: Kei Tokunaga Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- include/linux/sched.h | 4 ++++ kernel/sched.c | 5 +++++ kernel/sched_fair.c | 14 ++++++++++++++ 3 files changed, 23 insertions(+) diff --git a/include/linux/sched.h b/include/linux/sched.h index 9ae4030067a..11d8e9a74ef 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -899,6 +899,10 @@ struct sched_class { int running); void (*prio_changed) (struct rq *this_rq, struct task_struct *task, int oldprio, int running); + +#ifdef CONFIG_FAIR_GROUP_SCHED + void (*moved_group) (struct task_struct *p); +#endif }; struct load_weight { diff --git a/kernel/sched.c b/kernel/sched.c index dcd553cc4ee..0b949c4e73a 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -7625,6 +7625,11 @@ void sched_move_task(struct task_struct *tsk) set_task_rq(tsk, task_cpu(tsk)); +#ifdef CONFIG_FAIR_GROUP_SCHED + if (tsk->sched_class->moved_group) + tsk->sched_class->moved_group(tsk); +#endif + if (on_rq) { if (unlikely(running)) tsk->sched_class->set_curr_task(rq); diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 3df4d46994c..e2a53051561 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -1353,6 +1353,16 @@ static void set_curr_task_fair(struct rq *rq) set_next_entity(cfs_rq_of(se), se); } +#ifdef CONFIG_FAIR_GROUP_SCHED +static void moved_group_fair(struct task_struct *p) +{ + struct cfs_rq *cfs_rq = task_cfs_rq(p); + + update_curr(cfs_rq); + place_entity(cfs_rq, &p->se, 1); +} +#endif + /* * All the scheduling class methods: */ @@ -1381,6 +1391,10 @@ static const struct sched_class fair_sched_class = { .prio_changed = prio_changed_fair, .switched_to = switched_to_fair, + +#ifdef CONFIG_FAIR_GROUP_SCHED + .moved_group = moved_group_fair, +#endif }; #ifdef CONFIG_SCHED_DEBUG -- GitLab From 6fa46fa526f2cab9ce21fa5e39501553a40d196d Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 5 Mar 2008 10:00:12 -0500 Subject: [PATCH 613/923] sched: balance RT task resched only on runqueue Sripathi Kodi reported a crash in the -rt kernel: https://bugzilla.redhat.com/show_bug.cgi?id=435674 this is due to a place that can reschedule a task without holding the tasks runqueue lock. This was caused by the RT balancing code that pulls RT tasks to the current run queue and will reschedule the current task. There's a slight chance that the pulling of the RT tasks will release the current runqueue's lock and retake it (in the double_lock_balance). During this time that the runqueue is released, the current task can migrate to another runqueue. In the prio_changed_rt code, after the pull, if the current task is of lesser priority than one of the RT tasks pulled, resched_task is called on the current task. If the current task had migrated in that small window, resched_task will be called without holding the runqueue lock for the runqueue that the task is on. This race condition also exists in the mainline kernel and this patch adds a check to make sure the task hasn't migrated before calling resched_task. Signed-off-by: Steven Rostedt Tested-by: Sripathi Kodi Acked-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched_rt.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index 76e82851754..0a6d2e51642 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -1107,9 +1107,11 @@ static void prio_changed_rt(struct rq *rq, struct task_struct *p, pull_rt_task(rq); /* * If there's a higher priority task waiting to run - * then reschedule. + * then reschedule. Note, the above pull_rt_task + * can release the rq lock and p could migrate. + * Only reschedule if p is still on the same runqueue. */ - if (p->prio > rq->rt.highest_prio) + if (p->prio > rq->rt.highest_prio && rq->curr == p) resched_task(p); #else /* For UP simply resched on drop of prio */ -- GitLab From 150d8bede7f85eb00d8f4d628e6b0bae68739e3b Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Wed, 5 Mar 2008 16:56:37 -0500 Subject: [PATCH 614/923] sched: export task_nice The API is trivial, and so is the implementation. Signed-off-by: Pavel Roskin Signed-off-by: Ingo Molnar --- kernel/sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched.c b/kernel/sched.c index 0b949c4e73a..63a469f8853 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -4422,7 +4422,7 @@ int task_nice(const struct task_struct *p) { return TASK_NICE(p); } -EXPORT_SYMBOL_GPL(task_nice); +EXPORT_SYMBOL(task_nice); /** * idle_cpu - is a given cpu idle currently? -- GitLab From 1868f958eb56fc41c5985c8732e564a400c5fdf5 Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Fri, 7 Mar 2008 09:35:06 +0800 Subject: [PATCH 615/923] sched: fix the wrong time slice value for SCHED_FIFO tasks Function sys_sched_rr_get_interval returns wrong time slice value for SCHED_FIFO tasks. The time slice for SCHED_FIFO tasks should be 0. Signed-off-by: Miao Xie Signed-off-by: Ingo Molnar --- kernel/sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched.c b/kernel/sched.c index 63a469f8853..5b13e4b0e00 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5100,7 +5100,7 @@ long sys_sched_rr_get_interval(pid_t pid, struct timespec __user *interval) time_slice = 0; if (p->policy == SCHED_RR) { time_slice = DEF_TIMESLICE; - } else { + } else if (p->policy != SCHED_FIFO) { struct sched_entity *se = &p->se; unsigned long flags; struct rq *rq; -- GitLab From 2692a2406b9262bbb101708815be99ec2988e48b Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 27 Feb 2008 12:00:46 +0100 Subject: [PATCH 616/923] sched: rt-group: fixup schedulability constraints calculation it was only possible to configure the rt-group scheduling parameters beyond the default value in a very small range. that's because div64_64() has a different calling convention than do_div() :/ fix a few untidies while we are here; sysctl_sched_rt_period may overflow due to that multiplication, so cast to u64 first. Also that RUNTIME_INF juggling makes little sense although its an effective NOP. Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index 5b13e4b0e00..b8ee864c748 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -7726,9 +7726,7 @@ static unsigned long to_ratio(u64 period, u64 runtime) if (runtime == RUNTIME_INF) return 1ULL << 16; - runtime *= (1ULL << 16); - div64_64(runtime, period); - return runtime; + return div64_64(runtime << 16, period); } static int __rt_schedulable(struct task_group *tg, u64 period, u64 runtime) @@ -7757,18 +7755,16 @@ int sched_group_set_rt_runtime(struct task_group *tg, long rt_runtime_us) u64 rt_runtime, rt_period; int err = 0; - rt_period = sysctl_sched_rt_period * NSEC_PER_USEC; + rt_period = (u64)sysctl_sched_rt_period * NSEC_PER_USEC; rt_runtime = (u64)rt_runtime_us * NSEC_PER_USEC; if (rt_runtime_us == -1) - rt_runtime = rt_period; + rt_runtime = RUNTIME_INF; mutex_lock(&rt_constraints_mutex); if (!__rt_schedulable(tg, rt_period, rt_runtime)) { err = -EINVAL; goto unlock; } - if (rt_runtime_us == -1) - rt_runtime = RUNTIME_INF; tg->rt_runtime = rt_runtime; unlock: mutex_unlock(&rt_constraints_mutex); -- GitLab From 521f1a2489c41f8b1181b0a8eb52e1c34284d50b Mon Sep 17 00:00:00 2001 From: Dhaval Giani Date: Thu, 28 Feb 2008 15:21:56 +0530 Subject: [PATCH 617/923] sched: don't allow rt_runtime_us to be zero for groups having rt tasks This patch checks if we can set the rt_runtime_us to 0. If there is a realtime task in the group, we don't want to set the rt_runtime_us as 0 or bad things will happen. (that task wont get any CPU time despite being TASK_RUNNNG) Signed-off-by: Dhaval Giani Signed-off-by: Ingo Molnar --- kernel/sched.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/kernel/sched.c b/kernel/sched.c index b8ee864c748..52b98675acb 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -7750,6 +7750,17 @@ static int __rt_schedulable(struct task_group *tg, u64 period, u64 runtime) return total + to_ratio(period, runtime) < global_ratio; } +/* Must be called with tasklist_lock held */ +static inline int tg_has_rt_tasks(struct task_group *tg) +{ + struct task_struct *g, *p; + do_each_thread(g, p) { + if (rt_task(p) && rt_rq_of_se(&p->rt)->tg == tg) + return 1; + } while_each_thread(g, p); + return 0; +} + int sched_group_set_rt_runtime(struct task_group *tg, long rt_runtime_us) { u64 rt_runtime, rt_period; @@ -7761,12 +7772,18 @@ int sched_group_set_rt_runtime(struct task_group *tg, long rt_runtime_us) rt_runtime = RUNTIME_INF; mutex_lock(&rt_constraints_mutex); + read_lock(&tasklist_lock); + if (rt_runtime_us == 0 && tg_has_rt_tasks(tg)) { + err = -EBUSY; + goto unlock; + } if (!__rt_schedulable(tg, rt_period, rt_runtime)) { err = -EINVAL; goto unlock; } tg->rt_runtime = rt_runtime; unlock: + read_unlock(&tasklist_lock); mutex_unlock(&rt_constraints_mutex); return err; -- GitLab From 80d38f9a7871d9bafc3f244dabe48b41a58de705 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 7 Mar 2008 10:47:43 +0100 Subject: [PATCH 618/923] drivers/char/esp.c: fix bootup lockup randconfig testing found a bootup lockup in drivers/char/esp.c because of a spinlock that wasn't correctly initialized. I'm not sure why it became more prominent in 2.6.25-rc4, the bug seems rather old and i've been doing allyesconfig bootups for ages with CONFIG_ESP enabled. This fixes this bootup lockup: PM: Adding info for No Bus:ttyP63 ttyP32 at 0x0240 (irq = 0) is an ESP primary port BUG: spinlock lockup on CPU#0, swapper/1, f56dd004 Pid: 1, comm: swapper Not tainted 2.6.25-rc4-sched-devel.git-x86-latest.git #402 [] _raw_spin_lock+0x134/0x140 [] _spin_lock_irqsave+0x5e/0x80 [] ? espserial_init+0x2be/0x6e0 [] espserial_init+0x2be/0x6e0 [] kernel_init+0x83/0x260 [] ? espserial_init+0x0/0x6e0 [] ? restore_nocheck_notrace+0x0/0xe [] ? kernel_init+0x0/0x260 [] ? kernel_init+0x0/0x260 [] kernel_thread_helper+0x7/0x10 ======================= kzalloc() is not the way to initialize spinlocks anymore. Signed-off-by: Ingo Molnar Signed-off-by: Linus Torvalds --- drivers/char/esp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/esp.c b/drivers/char/esp.c index c01e26d9ee5..f3fe6206734 100644 --- a/drivers/char/esp.c +++ b/drivers/char/esp.c @@ -2484,6 +2484,7 @@ static int __init espserial_init(void) return 0; } + spin_lock_init(&info->lock); /* rx_trigger, tx_trigger are needed by autoconfig */ info->config.rx_trigger = rx_trigger; info->config.tx_trigger = tx_trigger; -- GitLab From 5d49c101a126808a38f2a1f4eedc1fd28233e37f Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Fri, 7 Mar 2008 19:47:08 +0100 Subject: [PATCH 619/923] gigaset: fix Oops on module unload regression The card state mutex was only initialized when a device was connected, but used during unload unconditionally, leading to an Oops if a driver was loaded and unloaded again without ever connecting a device. Fix this by initializing the mutex as soon as the structure is allocated. Also add a missing mutex unlock revealed in the same execution path. This fixes a possible Oops in 2.6.25-rc that was introduced by commit e468c04894f36045cf93d1384183a461014b6840 ("Gigaset: permit module unload"). Thanks to Roland Kletzing for reporting this problem. Signed-off-by: Tilman Schmidt Tested-by: Roland Kletzing Cc: Hansjoerg Lipp Cc: Karsten Keil Signed-off-by: Linus Torvalds --- drivers/isdn/gigaset/common.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index aacedec4986..827c32c1679 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -637,7 +637,6 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, err("maximum number of devices exceeded"); return NULL; } - mutex_init(&cs->mutex); gig_dbg(DEBUG_INIT, "allocating bcs[0..%d]", channels - 1); cs->bcs = kmalloc(channels * sizeof(struct bc_state), GFP_KERNEL); @@ -898,8 +897,10 @@ int gigaset_shutdown(struct cardstate *cs) { mutex_lock(&cs->mutex); - if (!(cs->flags & VALID_MINOR)) + if (!(cs->flags & VALID_MINOR)) { + mutex_unlock(&cs->mutex); return -1; + } cs->waiting = 1; @@ -1086,6 +1087,7 @@ struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors, drv->cs[i].driver = drv; drv->cs[i].ops = drv->ops; drv->cs[i].minor_index = i; + mutex_init(&drv->cs[i].mutex); } gigaset_if_initdriver(drv, procname, devname); -- GitLab From e9720acd728a46cb40daa52c99a979f7c4ff195c Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Fri, 7 Mar 2008 11:08:40 -0800 Subject: [PATCH 620/923] [NET]: Make /proc/net a symlink on /proc/self/net (v3) Current /proc/net is done with so called "shadows", but current implementation is broken and has little chances to get fixed. The problem is that dentries subtree of /proc/net directory has fancy revalidation rules to make processes living in different net namespaces see different entries in /proc/net subtree, but currently, tasks see in the /proc/net subdir the contents of any other namespace, depending on who opened the file first. The proposed fix is to turn /proc/net into a symlink, which points to /proc/self/net, which in turn shows what previously was in /proc/net - the network-related info, from the net namespace the appropriate task lives in. # ls -l /proc/net lrwxrwxrwx 1 root root 8 Mar 5 15:17 /proc/net -> self/net In other words - this behaves like /proc/mounts, but unlike "mounts", "net" is not a file, but a directory. Changes from v2: * Fixed discrepancy of /proc/net nlink count and selinux labeling screwup pointed out by Stephen. To get the correct nlink count the ->getattr callback for /proc/net is overridden to read one from the net->proc_net entry. To make selinux still work the net->proc_net entry is initialized properly, i.e. with the "net" name and the proc_net parent. Selinux fixes are Acked-by: Stephen Smalley Changes from v1: * Fixed a task_struct leak in get_proc_task_net, pointed out by Paul. Signed-off-by: Pavel Emelyanov Acked-by: "Eric W. Biederman" Signed-off-by: David S. Miller --- fs/proc/base.c | 1 + fs/proc/generic.c | 26 +++++--- fs/proc/internal.h | 7 +++ fs/proc/proc_net.c | 117 +++++++++++++++++++++++++++--------- include/linux/proc_fs.h | 3 - include/net/net_namespace.h | 1 - 6 files changed, 114 insertions(+), 41 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 96ee899d650..cc43cf0c1fa 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2274,6 +2274,7 @@ static const struct pid_entry tgid_base_stuff[] = { DIR("task", S_IRUGO|S_IXUGO, task), DIR("fd", S_IRUSR|S_IXUSR, fd), DIR("fdinfo", S_IRUSR|S_IXUSR, fdinfo), + DIR("net", S_IRUGO|S_IXUSR, net), REG("environ", S_IRUSR, environ), INF("auxv", S_IRUSR, pid_auxv), ONE("status", S_IRUGO, pid_status), diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 68971e66cd4..a36ad3c75cf 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -377,15 +377,14 @@ static struct dentry_operations proc_dentry_operations = * Don't create negative dentries here, return -ENOENT by hand * instead. */ -struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd) +struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *dir, + struct dentry *dentry) { struct inode *inode = NULL; - struct proc_dir_entry * de; int error = -ENOENT; lock_kernel(); spin_lock(&proc_subdir_lock); - de = PDE(dir); if (de) { for (de = de->subdir; de ; de = de->next) { if (de->namelen != dentry->d_name.len) @@ -393,8 +392,6 @@ struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry, struct nam if (!memcmp(dentry->d_name.name, de->name, de->namelen)) { unsigned int ino; - if (de->shadow_proc) - de = de->shadow_proc(current, de); ino = de->low_ino; de_get(de); spin_unlock(&proc_subdir_lock); @@ -417,6 +414,12 @@ out_unlock: return ERR_PTR(error); } +struct dentry *proc_lookup(struct inode *dir, struct dentry *dentry, + struct nameidata *nd) +{ + return proc_lookup_de(PDE(dir), dir, dentry); +} + /* * This returns non-zero if at EOF, so that the /proc * root directory can use this and check if it should @@ -426,10 +429,9 @@ out_unlock: * value of the readdir() call, as long as it's non-negative * for success.. */ -int proc_readdir(struct file * filp, - void * dirent, filldir_t filldir) +int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, + filldir_t filldir) { - struct proc_dir_entry * de; unsigned int ino; int i; struct inode *inode = filp->f_path.dentry->d_inode; @@ -438,7 +440,6 @@ int proc_readdir(struct file * filp, lock_kernel(); ino = inode->i_ino; - de = PDE(inode); if (!de) { ret = -EINVAL; goto out; @@ -499,6 +500,13 @@ out: unlock_kernel(); return ret; } +int proc_readdir(struct file *filp, void *dirent, filldir_t filldir) +{ + struct inode *inode = filp->f_path.dentry->d_inode; + + return proc_readdir_de(PDE(inode), filp, dirent, filldir); +} + /* * These are the generic /proc directory operations. They * use the in-memory "struct proc_dir_entry" tree to parse diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 1c81c8f1aee..bc72f5c8c47 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -64,6 +64,8 @@ extern const struct file_operations proc_numa_maps_operations; extern const struct file_operations proc_smaps_operations; extern const struct file_operations proc_clear_refs_operations; extern const struct file_operations proc_pagemap_operations; +extern const struct file_operations proc_net_operations; +extern const struct inode_operations proc_net_inode_operations; void free_proc_entry(struct proc_dir_entry *de); @@ -83,3 +85,8 @@ static inline int proc_fd(struct inode *inode) { return PROC_I(inode)->fd; } + +struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *ino, + struct dentry *dentry); +int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, + filldir_t filldir); diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index 14e9b5aaf86..4caa5f774fb 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -63,6 +63,82 @@ int seq_release_net(struct inode *ino, struct file *f) } EXPORT_SYMBOL_GPL(seq_release_net); +static struct net *get_proc_task_net(struct inode *dir) +{ + struct task_struct *task; + struct nsproxy *ns; + struct net *net = NULL; + + rcu_read_lock(); + task = pid_task(proc_pid(dir), PIDTYPE_PID); + if (task != NULL) { + ns = task_nsproxy(task); + if (ns != NULL) + net = get_net(ns->net_ns); + } + rcu_read_unlock(); + + return net; +} + +static struct dentry *proc_tgid_net_lookup(struct inode *dir, + struct dentry *dentry, struct nameidata *nd) +{ + struct dentry *de; + struct net *net; + + de = ERR_PTR(-ENOENT); + net = get_proc_task_net(dir); + if (net != NULL) { + de = proc_lookup_de(net->proc_net, dir, dentry); + put_net(net); + } + return de; +} + +static int proc_tgid_net_getattr(struct vfsmount *mnt, struct dentry *dentry, + struct kstat *stat) +{ + struct inode *inode = dentry->d_inode; + struct net *net; + + net = get_proc_task_net(inode); + + generic_fillattr(inode, stat); + + if (net != NULL) { + stat->nlink = net->proc_net->nlink; + put_net(net); + } + + return 0; +} + +const struct inode_operations proc_net_inode_operations = { + .lookup = proc_tgid_net_lookup, + .getattr = proc_tgid_net_getattr, +}; + +static int proc_tgid_net_readdir(struct file *filp, void *dirent, + filldir_t filldir) +{ + int ret; + struct net *net; + + ret = -EINVAL; + net = get_proc_task_net(filp->f_path.dentry->d_inode); + if (net != NULL) { + ret = proc_readdir_de(net->proc_net, filp, dirent, filldir); + put_net(net); + } + return ret; +} + +const struct file_operations proc_net_operations = { + .read = generic_read_dir, + .readdir = proc_tgid_net_readdir, +}; + struct proc_dir_entry *proc_net_fops_create(struct net *net, const char *name, mode_t mode, const struct file_operations *fops) @@ -83,14 +159,6 @@ struct net *get_proc_net(const struct inode *inode) } EXPORT_SYMBOL_GPL(get_proc_net); -static struct proc_dir_entry *shadow_pde; - -static struct proc_dir_entry *proc_net_shadow(struct task_struct *task, - struct proc_dir_entry *de) -{ - return task->nsproxy->net_ns->proc_net; -} - struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, struct proc_dir_entry *parent) { @@ -104,45 +172,39 @@ EXPORT_SYMBOL_GPL(proc_net_mkdir); static __net_init int proc_net_ns_init(struct net *net) { - struct proc_dir_entry *root, *netd, *net_statd; + struct proc_dir_entry *netd, *net_statd; int err; err = -ENOMEM; - root = kzalloc(sizeof(*root), GFP_KERNEL); - if (!root) + netd = kzalloc(sizeof(*netd), GFP_KERNEL); + if (!netd) goto out; - err = -EEXIST; - netd = proc_net_mkdir(net, "net", root); - if (!netd) - goto free_root; + netd->data = net; + netd->nlink = 2; + netd->name = "net"; + netd->namelen = 3; + netd->parent = &proc_root; err = -EEXIST; net_statd = proc_net_mkdir(net, "stat", netd); if (!net_statd) goto free_net; - root->data = net; - - net->proc_net_root = root; net->proc_net = netd; net->proc_net_stat = net_statd; - err = 0; + return 0; +free_net: + kfree(netd); out: return err; -free_net: - remove_proc_entry("net", root); -free_root: - kfree(root); - goto out; } static __net_exit void proc_net_ns_exit(struct net *net) { remove_proc_entry("stat", net->proc_net); - remove_proc_entry("net", net->proc_net_root); - kfree(net->proc_net_root); + kfree(net->proc_net); } static struct pernet_operations __net_initdata proc_net_ns_ops = { @@ -152,8 +214,7 @@ static struct pernet_operations __net_initdata proc_net_ns_ops = { int __init proc_net_init(void) { - shadow_pde = proc_mkdir("net", NULL); - shadow_pde->shadow_proc = proc_net_shadow; + proc_symlink("net", NULL, "self/net"); return register_pernet_subsys(&proc_net_ns_ops); } diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index d9a9e718ad1..9b6c935f69c 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -50,8 +50,6 @@ typedef int (read_proc_t)(char *page, char **start, off_t off, typedef int (write_proc_t)(struct file *file, const char __user *buffer, unsigned long count, void *data); typedef int (get_info_t)(char *, char **, off_t, int); -typedef struct proc_dir_entry *(shadow_proc_t)(struct task_struct *task, - struct proc_dir_entry *pde); struct proc_dir_entry { unsigned int low_ino; @@ -82,7 +80,6 @@ struct proc_dir_entry { int pde_users; /* number of callers into module in progress */ spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */ struct completion *pde_unload_completion; - shadow_proc_t *shadow_proc; }; struct kcore_list { diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 28738b7d53e..923f2b8b909 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -31,7 +31,6 @@ struct net { struct proc_dir_entry *proc_net; struct proc_dir_entry *proc_net_stat; - struct proc_dir_entry *proc_net_root; struct list_head sysctl_table_headers; -- GitLab From e621e69137b24fdbbe7ad28214e8d81e614c25b7 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Fri, 7 Mar 2008 11:11:13 -0800 Subject: [PATCH 621/923] [NET]: include into linux/ethtool.h for __u* typedef Signed-off-by: Kirill A. Shutemov Signed-off-by: David S. Miller --- include/linux/ethtool.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index fcbe8b640ff..c8d21635786 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -12,6 +12,7 @@ #ifndef _LINUX_ETHTOOL_H #define _LINUX_ETHTOOL_H +#include /* This should work for both 32 and 64 bit userland. */ struct ethtool_cmd { -- GitLab From af1b8c2ff7c337c4e96db12d6b7b61eaa91aa069 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 25 Feb 2008 15:56:29 -0800 Subject: [PATCH 622/923] NFS: Fix an f_mode/f_flags confusion in fs/nfs/write.c O_SYNC is stored in filp->f_flags. Thanks to Al Viro for pointing out the bug. Signed-off-by: Trond Myklebust --- fs/nfs/write.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfs/write.c b/fs/nfs/write.c index f55c437124a..80c61fdb272 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -734,7 +734,7 @@ int nfs_updatepage(struct file *file, struct page *page, */ if (nfs_write_pageuptodate(page, inode) && inode->i_flock == NULL && - !(file->f_mode & O_SYNC)) { + !(file->f_flags & O_SYNC)) { count = max(count + offset, nfs_page_length(page)); offset = 0; } -- GitLab From ee1a2c564f67407947e89f1dac75ac0af0ba88c7 Mon Sep 17 00:00:00 2001 From: Tom Talpey Date: Wed, 27 Feb 2008 15:04:26 -0500 Subject: [PATCH 623/923] SUNRPC: Fix a nfs4 over rdma transport oops Prevent an RPC oops when freeing a dynamically allocated RDMA buffer, used in certain special-case large metadata operations. Signed-off-by: Tom Talpey Signed-off-by: James Lentini Signed-off-by: Trond Myklebust --- net/sunrpc/xprtrdma/transport.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c index 02c522c17de..a564c1a39ec 100644 --- a/net/sunrpc/xprtrdma/transport.c +++ b/net/sunrpc/xprtrdma/transport.c @@ -614,7 +614,11 @@ xprt_rdma_free(void *buffer) return; req = container_of(buffer, struct rpcrdma_req, rl_xdr_buf[0]); - r_xprt = container_of(req->rl_buffer, struct rpcrdma_xprt, rx_buf); + if (req->rl_iov.length == 0) { /* see allocate above */ + r_xprt = container_of(((struct rpcrdma_req *) req->rl_buffer)->rl_buffer, + struct rpcrdma_xprt, rx_buf); + } else + r_xprt = container_of(req->rl_buffer, struct rpcrdma_xprt, rx_buf); rep = req->rl_reply; dprintk("RPC: %s: called on 0x%p%s\n", -- GitLab From c37dcd334c0b0a46a90cfa13b9f69e2aaa89bc09 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 6 Mar 2008 12:34:50 -0500 Subject: [PATCH 624/923] NFS: Fix the fsid revalidation in nfs_update_inode() When we detect that we've crossed a mountpoint on the remote server, we must take care not to use that inode to revalidate the fsid on our current superblock. To do so, we label the inode as a remote mountpoint, and check for that in nfs_update_inode(). Signed-off-by: Trond Myklebust --- fs/nfs/inode.c | 6 ++++-- include/linux/nfs_fs.h | 1 + 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 966a8850aa3..a4c7cf2bff3 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -299,6 +299,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) else inode->i_op = &nfs_mountpoint_inode_operations; inode->i_fop = NULL; + set_bit(NFS_INO_MOUNTPOINT, &nfsi->flags); } } else if (S_ISLNK(inode->i_mode)) inode->i_op = &nfs_symlink_inode_operations; @@ -1003,8 +1004,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) server = NFS_SERVER(inode); /* Update the fsid? */ - if (S_ISDIR(inode->i_mode) - && !nfs_fsid_equal(&server->fsid, &fattr->fsid)) + if (S_ISDIR(inode->i_mode) && + !nfs_fsid_equal(&server->fsid, &fattr->fsid) && + !test_bit(NFS_INO_MOUNTPOINT, &nfsi->flags)) server->fsid = fattr->fsid; /* diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index a69ba80f2df..f4a0e4c218d 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -195,6 +195,7 @@ struct nfs_inode { #define NFS_INO_ADVISE_RDPLUS (1) /* advise readdirplus */ #define NFS_INO_STALE (2) /* possible stale inode */ #define NFS_INO_ACL_LRU_SET (3) /* Inode is on the LRU list */ +#define NFS_INO_MOUNTPOINT (4) /* inode is remote mountpoint */ static inline struct nfs_inode *NFS_I(const struct inode *inode) { -- GitLab From 4e99a1ff3410c627a428d5ddb6cd2e7bc908a486 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 6 Mar 2008 12:34:59 -0500 Subject: [PATCH 625/923] NFS: Fix dentry revalidation for NFSv4 referrals and mountpoint crossings As long as the directory contents haven't changed, we should just let the path walk proceed to cross the mountpoint. Apart from being an optimisation in the case of 'nohide' mountpoint traversals, it also fixes an issue with referrals: referral inodes don't have valid filehandles, so calling nfs_revalidate_inode() on them is a bug. Signed-off-by: Trond Myklebust --- fs/nfs/dir.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index ae04892a5e5..6cea7479c5b 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -710,6 +710,8 @@ int nfs_lookup_verify_inode(struct inode *inode, struct nameidata *nd) { struct nfs_server *server = NFS_SERVER(inode); + if (test_bit(NFS_INO_MOUNTPOINT, &NFS_I(inode)->flags)) + return 0; if (nd != NULL) { /* VFS wants an on-the-wire revalidation */ if (nd->flags & LOOKUP_REVAL) -- GitLab From b348487f0dc06f09a4c0d9e353eaa66e70230c7d Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 7 Mar 2008 21:53:49 +0100 Subject: [PATCH 626/923] ide-cd: mark REQ_TYPE_ATA_PC write requests with REQ_RW flag On Thursday 06 March 2008, walt wrote: > For me, this commit causes the problem it's intended to fix: > > commit 9f10d9ee0ac6d79d7bc8b9a158bf4a29322d84d3 > Author: Bartlomiej Zolnierkiewicz > Date: Tue Feb 26 21:50:35 2008 +0100 > > ide-cd: fix 'ireason' handling for REQ_TYPE_ATA_PC requests > > This fixes some hangs caused by not finishing the transfer before ending > the request and also makes use of 'ireason == 1' quirk for spurious IRQs. > > When I mount a CD there is a long delay, and I see this error message: > > hdc: ide_cd_check_ireason: wrong transfer direction! > cdrom: failed setting lba address space > hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest } > ide: failed opcode was: unknown > hdc: drive not ready for command > > > When I revert this commit everything works properly again, including > CD burning. It turned out that REQ_TYPE_ATA_PC write requests were not marked as such (the previous commit assumed them to be). Reported-by: walt Tested-by: walt Reviewed-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-cd_ioctl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index b68284de4e8..6d147ce6782 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -457,6 +457,10 @@ int ide_cdrom_packet(struct cdrom_device_info *cdi, layer. the packet must be complete, as we do not touch it at all. */ ide_cd_init_rq(drive, &req); + + if (cgc->data_direction == CGC_DATA_WRITE) + req.cmd_flags |= REQ_RW; + memcpy(req.cmd, cgc->cmd, CDROM_PACKET_SIZE); if (cgc->sense) memset(cgc->sense, 0, sizeof(struct request_sense)); -- GitLab From ef4298d0f06c788d204caa9e395de6e9e2fd9fc9 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 7 Mar 2008 21:53:49 +0100 Subject: [PATCH 627/923] ide: fix enabling DMA on it821x in "smart" mode ide_tune_dma() should return '1' if IDE_HFLAG_NO_SET_MODE host flag is set. Cc: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 2de99e4be5c..d61e5788d31 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -713,7 +713,7 @@ static int ide_tune_dma(ide_drive_t *drive) } if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE) - return 0; + return 1; if (ide_set_dma_mode(drive, speed)) return 0; -- GitLab From 0c6025d44448bd688dfd351a09bc620aafa4d1ff Mon Sep 17 00:00:00 2001 From: Peter Teoh Date: Fri, 7 Mar 2008 21:53:49 +0100 Subject: [PATCH 628/923] ide: fix buggy code in ide_register_hw() Relocating the index to come after finding the hwif pointer. Signed-off-by: Peter Teoh Reported-by: Adrian Bunk Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index fa16bc30bbc..c2b79122409 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -667,7 +667,6 @@ int ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *), do { hwif = ide_deprecated_find_port(hw->io_ports[IDE_DATA_OFFSET]); - index = hwif->index; if (hwif) goto found; for (index = 0; index < MAX_HWIFS; index++) @@ -675,6 +674,7 @@ int ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *), } while (retry--); return -1; found: + index = hwif->index; if (hwif->present) ide_unregister(index, 0, 1); else if (!hwif->hold) -- GitLab From 331a5ad2a2ab6e93d1848b060c84fd2821c72e29 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 7 Mar 2008 21:53:50 +0100 Subject: [PATCH 629/923] ide: move ide.txt to Documentation/ide/ Cleanup some of Documentation directory: Move Documentation/ide.txt to the ide/ sub-directory. Fix trailing whitespace while there. Signed-off-by: Randy Dunlap Signed-off-by: Bartlomiej Zolnierkiewicz --- Documentation/{ => ide}/ide.txt | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) rename Documentation/{ => ide}/ide.txt (99%) diff --git a/Documentation/ide.txt b/Documentation/ide/ide.txt similarity index 99% rename from Documentation/ide.txt rename to Documentation/ide/ide.txt index bcd7cd1278e..e3b3425328b 100644 --- a/Documentation/ide.txt +++ b/Documentation/ide/ide.txt @@ -3,11 +3,11 @@ ============================================================================== - + The hdparm utility can be used to control various IDE features on a running system. It is packaged separately. Please Look for it on popular linux FTP sites. - + *** IMPORTANT NOTICES: BUGGY IDE CHIPSETS CAN CORRUPT DATA!! @@ -51,7 +51,7 @@ Common pitfalls: ================================================================================ -This is the multiple IDE interface driver, as evolved from hd.c. +This is the multiple IDE interface driver, as evolved from hd.c. It supports up to 9 IDE interfaces per default, on one or more IRQs (usually 14 & 15). There can be up to two drives per interface, as per the ATA-6 spec. @@ -215,17 +215,17 @@ Summary of ide driver parameters for kernel command line -------------------------------------------------------- "hdx=" is recognized for all "x" from "a" to "h", such as "hdc". - + "idex=" is recognized for all "x" from "0" to "3", such as "ide1". "hdx=noprobe" : drive may be present, but do not probe for it - + "hdx=none" : drive is NOT present, ignore cmos and do not probe - + "hdx=nowerr" : ignore the WRERR_STAT bit on this drive - + "hdx=cdrom" : drive is present, and is a cdrom drive - + "hdx=cyl,head,sect" : disk drive is present, with specified geometry "hdx=remap" : remap access of sector 0 to sector 1 (for EZDrive) @@ -261,7 +261,7 @@ Summary of ide driver parameters for kernel command line "idex=base" : probe for an interface at the addr specified, where "base" is usually 0x1f0 or 0x170 and "ctl" is assumed to be "base"+0x206 - + "idex=base,ctl" : specify both base and ctl "idex=base,ctl,irq" : specify base, ctl, and irq number @@ -272,7 +272,7 @@ Summary of ide driver parameters for kernel command line to take effect. "idex=four" : four drives on idex and ide(x^1) share same ports - + "idex=reset" : reset interface after probe "idex=ata66" : informs the interface that it has an 80c cable -- GitLab From 1c10e93828f8861c3f58d647e259de0e2c63b930 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 7 Mar 2008 21:53:50 +0100 Subject: [PATCH 630/923] ide: update references to Documentation/ide/ide.txt (v2) Fix all references to Documentation/ide/ide.txt. Add/update ide/00-INDEX file. Signed-off-by: Randy Dunlap Signed-off-by: Bartlomiej Zolnierkiewicz --- Documentation/00-INDEX | 2 -- Documentation/cdrom/ide-cd | 18 ++++++++--------- Documentation/ide/00-INDEX | 12 ++++++++++++ Documentation/kernel-parameters.txt | 8 ++++---- drivers/ide/Kconfig | 30 ++++++++++++++--------------- drivers/ide/ide.c | 2 +- 6 files changed, 41 insertions(+), 31 deletions(-) create mode 100644 Documentation/ide/00-INDEX diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 30b327a116e..042073f656e 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -183,8 +183,6 @@ i386/ - directory with info about Linux on Intel 32 bit architecture. ia64/ - directory with info about Linux on Intel 64 bit architecture. -ide.txt - - important info for users of ATA devices (IDE/EIDE disks and CD-ROMS). infiniband/ - directory with documents concerning Linux InfiniBand support. initrd.txt diff --git a/Documentation/cdrom/ide-cd b/Documentation/cdrom/ide-cd index 29721bfcde1..91c0dcc6fa5 100644 --- a/Documentation/cdrom/ide-cd +++ b/Documentation/cdrom/ide-cd @@ -45,7 +45,7 @@ This driver provides the following features: --------------- 0. The ide-cd relies on the ide disk driver. See - Documentation/ide.txt for up-to-date information on the ide + Documentation/ide/ide.txt for up-to-date information on the ide driver. 1. Make sure that the ide and ide-cd drivers are compiled into the @@ -64,7 +64,7 @@ This driver provides the following features: Depending on what type of IDE interface you have, you may need to specify additional configuration options. See - Documentation/ide.txt. + Documentation/ide/ide.txt. 2. You should also ensure that the iso9660 filesystem is either compiled into the kernel or available as a loadable module. You @@ -84,7 +84,7 @@ This driver provides the following features: on the primary IDE interface are called `hda' and `hdb', respectively. The drives on the secondary interface are called `hdc' and `hdd'. (Interfaces at other locations get other letters - in the third position; see Documentation/ide.txt.) + in the third position; see Documentation/ide/ide.txt.) If you want your CDROM drive to be found automatically by the driver, you should make sure your IDE interface uses either the @@ -93,7 +93,7 @@ This driver provides the following features: be jumpered as `master'. (If for some reason you cannot configure your system in this manner, you can probably still use the driver. You may have to pass extra configuration information to the kernel - when you boot, however. See Documentation/ide.txt for more + when you boot, however. See Documentation/ide/ide.txt for more information.) 4. Boot the system. If the drive is recognized, you should see a @@ -201,7 +201,7 @@ TEST This section discusses some common problems encountered when trying to use the driver, and some possible solutions. Note that if you are experiencing problems, you should probably also review -Documentation/ide.txt for current information about the underlying +Documentation/ide/ide.txt for current information about the underlying IDE support code. Some of these items apply only to earlier versions of the driver, but are mentioned here for completeness. @@ -211,7 +211,7 @@ from the driver. a. Drive is not detected during booting. - Review the configuration instructions above and in - Documentation/ide.txt, and check how your hardware is + Documentation/ide/ide.txt, and check how your hardware is configured. - If your drive is the only device on an IDE interface, it should @@ -219,7 +219,7 @@ a. Drive is not detected during booting. - If your IDE interface is not at the standard addresses of 0x170 or 0x1f0, you'll need to explicitly inform the driver using a - lilo option. See Documentation/ide.txt. (This feature was + lilo option. See Documentation/ide/ide.txt. (This feature was added around kernel version 1.3.30.) - If the autoprobing is not finding your drive, you can tell the @@ -245,7 +245,7 @@ a. Drive is not detected during booting. Support for some interfaces needing extra initialization is provided in later 1.3.x kernels. You may need to turn on additional kernel configuration options to get them to work; - see Documentation/ide.txt. + see Documentation/ide/ide.txt. Even if support is not available for your interface, you may be able to get it to work with the following procedure. First boot @@ -299,7 +299,7 @@ c. System hangups. be worked around by specifying the `serialize' option when booting. Recent kernels should be able to detect the need for this automatically in most cases, but the detection is not - foolproof. See Documentation/ide.txt for more information + foolproof. See Documentation/ide/ide.txt for more information about the `serialize' option and the CMD640B. - Note that many MS-DOS CDROM drivers will work with such buggy diff --git a/Documentation/ide/00-INDEX b/Documentation/ide/00-INDEX new file mode 100644 index 00000000000..d6b778842b7 --- /dev/null +++ b/Documentation/ide/00-INDEX @@ -0,0 +1,12 @@ +00-INDEX + - this file +ChangeLog.ide-cd.1994-2004 + - ide-cd changelog +ChangeLog.ide-floppy.1996-2002 + - ide-floppy changelog +ChangeLog.ide-tape.1995-2002 + - ide-tape changelog +ide-tape.txt + - info on the IDE ATAPI streaming tape driver +ide.txt + - important info for users of ATA devices (IDE/EIDE disks and CD-ROMS). diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 9a5b6658c65..533e67febf8 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -712,7 +712,7 @@ and is between 256 and 4096 characters. It is defined in the file Format: ,, hd?= [HW] (E)IDE subsystem - hd?lun= See Documentation/ide.txt. + hd?lun= See Documentation/ide/ide.txt. highmem=nn[KMG] [KNL,BOOT] forces the highmem zone to have an exact size of . This works even on boxes that have no @@ -766,14 +766,14 @@ and is between 256 and 4096 characters. It is defined in the file ide= [HW] (E)IDE subsystem Format: ide=nodma or ide=doubler or ide=reverse - See Documentation/ide.txt. + See Documentation/ide/ide.txt. ide?= [HW] (E)IDE subsystem Format: ide?=noprobe or chipset specific parameters. - See Documentation/ide.txt. + See Documentation/ide/ide.txt. idebus= [HW] (E)IDE subsystem - VLB/PCI bus speed - See Documentation/ide.txt. + See Documentation/ide/ide.txt. idle= [X86] Format: idle=poll or idle=mwait diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index df752e690e4..eed6d8e1b5c 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -50,7 +50,7 @@ menuconfig IDE To compile this driver as a module, choose M here: the module will be called ide. - For further information, please read . + For further information, please read . If unsure, say Y. @@ -77,7 +77,7 @@ config BLK_DEV_IDE Useful information about large (>540 MB) IDE disks, multiple interfaces, what to do if ATA/IDE devices are not automatically detected, sound card ATA/IDE ports, module support, and other - topics, is contained in . For detailed + topics, is contained in . For detailed information about hard drives, consult the Disk-HOWTO and the Multi-Disk-HOWTO, available from . @@ -87,7 +87,7 @@ config BLK_DEV_IDE . To compile this driver as a module, choose M here and read - . The module will be called ide-mod. + . The module will be called ide-mod. Do not compile this driver as a module if your root file system (the one containing the directory /) is located on an IDE device. @@ -98,7 +98,7 @@ config BLK_DEV_IDE if BLK_DEV_IDE -comment "Please see Documentation/ide.txt for help/info on IDE drives" +comment "Please see Documentation/ide/ide.txt for help/info on IDE drives" config BLK_DEV_IDE_SATA bool "Support for SATA (deprecated; conflicts with libata SATA driver)" @@ -235,8 +235,8 @@ config BLK_DEV_IDETAPE along with other IDE devices, as "hdb" or "hdc", or something similar, and will be mapped to a character device such as "ht0" (check the boot messages with dmesg). Be sure to consult the - and files - for usage information. + and + files for usage information. To compile this driver as a module, choose M here: the module will be called ide-tape. @@ -358,7 +358,7 @@ config BLK_DEV_CMD640 The CMD640 chip is also used on add-in cards by Acculogic, and on the "CSA-6400E PCI to IDE controller" that some people have. For - details, read . + details, read . config BLK_DEV_CMD640_ENHANCED bool "CMD640 enhanced support" @@ -366,7 +366,7 @@ config BLK_DEV_CMD640_ENHANCED help This option includes support for setting/autotuning PIO modes and prefetch on CMD640 IDE interfaces. For details, read - . If you have a CMD640 IDE interface + . If you have a CMD640 IDE interface and your BIOS does not already do this for you, then say Y here. Otherwise say N. @@ -1069,9 +1069,9 @@ config BLK_DEV_ALI14XX This driver is enabled at runtime using the "ali14xx.probe" kernel boot parameter. It enables support for the secondary IDE interface of the ALI M1439/1443/1445/1487/1489 chipsets, and permits faster - I/O speeds to be set as well. See the files - and - for more info. + I/O speeds to be set as well. + See the files and + for more info. config BLK_DEV_DTC2278 tristate "DTC-2278 support" @@ -1079,7 +1079,7 @@ config BLK_DEV_DTC2278 This driver is enabled at runtime using the "dtc2278.probe" kernel boot parameter. It enables support for the secondary IDE interface of the DTC-2278 card, and permits faster I/O speeds to be set as - well. See the and + well. See the and files for more info. config BLK_DEV_HT6560B @@ -1088,7 +1088,7 @@ config BLK_DEV_HT6560B This driver is enabled at runtime using the "ht6560b.probe" kernel boot parameter. It enables support for the secondary IDE interface of the Holtek card, and permits faster I/O speeds to be set as well. - See the and + See the and files for more info. config BLK_DEV_QD65XX @@ -1096,7 +1096,7 @@ config BLK_DEV_QD65XX help This driver is enabled at runtime using the "qd65xx.probe" kernel boot parameter. It permits faster I/O speeds to be set. See the - and + and for more info. config BLK_DEV_UMC8672 @@ -1105,7 +1105,7 @@ config BLK_DEV_UMC8672 This driver is enabled at runtime using the "umc8672.probe" kernel boot parameter. It enables support for the secondary IDE interface of the UMC-8672, and permits faster I/O speeds to be set as well. - See the files and + See the files and for more info. endif diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index c2b79122409..9976f9d627d 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -1180,7 +1180,7 @@ static int __initdata is_chipset_set[MAX_HWIFS]; * ide_setup() gets called VERY EARLY during initialization, * to handle kernel "command line" strings beginning with "hdx=" or "ide". * - * Remember to update Documentation/ide.txt if you change something here. + * Remember to update Documentation/ide/ide.txt if you change something here. */ static int __init ide_setup(char *s) { -- GitLab From 3e0d65bf6d5b464949b749a8da7977f6b197d301 Mon Sep 17 00:00:00 2001 From: Jeremy McNicoll Date: Fri, 7 Mar 2008 15:14:09 -0500 Subject: [PATCH 631/923] [POWERPC] 85xx: sbc8548 - Fix incorrect PCI-X and PCI interrupt map The following patch allows interrupts to occur on the sbc8548. Currently PCI and PCI-X devices get assigned an IRQ but the interrupt count never increases. This solves the problem and adds PCI support as well. Signed-off-by: Jeremy McNicoll Signed-off-by: Paul Gortmaker Signed-off-by: Kumar Gala --- arch/powerpc/boot/dts/sbc8548.dts | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/boot/dts/sbc8548.dts b/arch/powerpc/boot/dts/sbc8548.dts index 14be38ad5d4..b86e65d926c 100644 --- a/arch/powerpc/boot/dts/sbc8548.dts +++ b/arch/powerpc/boot/dts/sbc8548.dts @@ -184,11 +184,17 @@ cell-index = <0>; interrupt-map-mask = <0xf800 0x0 0x0 0x7>; interrupt-map = < - /* IDSEL 0x01 (PCI-X slot) */ - 0x0800 0x0 0x0 0x1 &mpic 0x0 0x1 - 0x0800 0x0 0x0 0x2 &mpic 0x1 0x1 - 0x0800 0x0 0x0 0x3 &mpic 0x2 0x1 - 0x0800 0x0 0x0 0x4 &mpic 0x3 0x1>; + /* IDSEL 0x01 (PCI-X slot) @66MHz */ + 0x0800 0x0 0x0 0x1 &mpic 0x2 0x1 + 0x0800 0x0 0x0 0x2 &mpic 0x3 0x1 + 0x0800 0x0 0x0 0x3 &mpic 0x4 0x1 + 0x0800 0x0 0x0 0x4 &mpic 0x1 0x1 + + /* IDSEL 0x11 (PCI, 3.3V 32bit) @33MHz */ + 0x8800 0x0 0x0 0x1 &mpic 0x2 0x1 + 0x8800 0x0 0x0 0x2 &mpic 0x3 0x1 + 0x8800 0x0 0x0 0x3 &mpic 0x4 0x1 + 0x8800 0x0 0x0 0x4 &mpic 0x1 0x1>; interrupt-parent = <&mpic>; interrupts = <0x18 0x2>; -- GitLab From 1757f2d12dce775982aaa006bce1cf4f7ce90111 Mon Sep 17 00:00:00 2001 From: Yuri Tikhonov Date: Sat, 2 Feb 2008 10:47:31 +0300 Subject: [PATCH 632/923] [PPC] 8xx: swap bug-fix This makes swap routines operate correctly on the ppc_8xx based machines. Recent kernel's size makes swap feature very important on low-memory platfor those are actually non-operable without it. Signed-off-by: Yuri Tikhonov Signed-off-by: Kumar Gala --- arch/ppc/kernel/head_8xx.S | 30 +++++++++++++++++++++++++++++- include/asm-ppc/pgtable.h | 8 -------- 2 files changed, 29 insertions(+), 9 deletions(-) diff --git a/arch/ppc/kernel/head_8xx.S b/arch/ppc/kernel/head_8xx.S index eb8d26f8736..321bda2de2c 100644 --- a/arch/ppc/kernel/head_8xx.S +++ b/arch/ppc/kernel/head_8xx.S @@ -329,8 +329,18 @@ InstructionTLBMiss: mfspr r11, SPRN_MD_TWC /* ....and get the pte address */ lwz r10, 0(r11) /* Get the pte */ +#ifdef CONFIG_SWAP + /* do not set the _PAGE_ACCESSED bit of a non-present page */ + andi. r11, r10, _PAGE_PRESENT + beq 4f + ori r10, r10, _PAGE_ACCESSED + mfspr r11, SPRN_MD_TWC /* get the pte address again */ + stw r10, 0(r11) +4: +#else ori r10, r10, _PAGE_ACCESSED stw r10, 0(r11) +#endif /* The Linux PTE won't go exactly into the MMU TLB. * Software indicator bits 21, 22 and 28 must be clear. @@ -395,8 +405,17 @@ DataStoreTLBMiss: DO_8xx_CPU6(0x3b80, r3) mtspr SPRN_MD_TWC, r11 - mfspr r11, SPRN_MD_TWC /* get the pte address again */ +#ifdef CONFIG_SWAP + /* do not set the _PAGE_ACCESSED bit of a non-present page */ + andi. r11, r10, _PAGE_PRESENT + beq 4f + ori r10, r10, _PAGE_ACCESSED +4: + /* and update pte in table */ +#else ori r10, r10, _PAGE_ACCESSED +#endif + mfspr r11, SPRN_MD_TWC /* get the pte address again */ stw r10, 0(r11) /* The Linux PTE won't go exactly into the MMU TLB. @@ -575,7 +594,16 @@ DataTLBError: /* Update 'changed', among others. */ +#ifdef CONFIG_SWAP + ori r10, r10, _PAGE_DIRTY|_PAGE_HWWRITE + /* do not set the _PAGE_ACCESSED bit of a non-present page */ + andi. r11, r10, _PAGE_PRESENT + beq 4f + ori r10, r10, _PAGE_ACCESSED +4: +#else ori r10, r10, _PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_HWWRITE +#endif mfspr r11, SPRN_MD_TWC /* Get pte address again */ stw r10, 0(r11) /* and update pte in table */ diff --git a/include/asm-ppc/pgtable.h b/include/asm-ppc/pgtable.h index 69347bdbb40..70435d32129 100644 --- a/include/asm-ppc/pgtable.h +++ b/include/asm-ppc/pgtable.h @@ -299,14 +299,6 @@ extern unsigned long ioremap_bot, ioremap_base; #define _PMD_PAGE_MASK 0x000c #define _PMD_PAGE_8M 0x000c -/* - * The 8xx TLB miss handler allegedly sets _PAGE_ACCESSED in the PTE - * for an address even if _PAGE_PRESENT is not set, as a performance - * optimization. This is a bug if you ever want to use swap unless - * _PAGE_ACCESSED is 2, which it isn't, or unless you have 8xx-specific - * definitions for __swp_entry etc. below, which would be gross. - * -- paulus - */ #define _PTE_NONE_MASK _PAGE_ACCESSED #else /* CONFIG_6xx */ -- GitLab From 60d5bcec7ed6c00e3ec88749fd81229731363221 Mon Sep 17 00:00:00 2001 From: Karsten Keil Date: Fri, 7 Mar 2008 21:10:34 +0100 Subject: [PATCH 633/923] bluetooth: Add another Broadcom device This adds another Broadcom BCM2045 based device to the blacklist, with these settings the micro dongle works on my system. Signed-off-by: Karsten Keil Acked-by: Marcel Holtmann Signed-off-by: Linus Torvalds --- drivers/bluetooth/hci_usb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/bluetooth/hci_usb.c b/drivers/bluetooth/hci_usb.c index 372c7ef633d..f16c94cbf48 100644 --- a/drivers/bluetooth/hci_usb.c +++ b/drivers/bluetooth/hci_usb.c @@ -116,6 +116,7 @@ static struct usb_device_id blacklist_ids[] = { { USB_DEVICE(0x0a5c, 0x2009), .driver_info = HCI_BCM92035 }, /* Broadcom BCM2045 */ + { USB_DEVICE(0x0a5c, 0x2039), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, { USB_DEVICE(0x0a5c, 0x2101), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, /* IBM/Lenovo ThinkPad with Broadcom chip */ -- GitLab From 84c6f6046c5a2189160a8f0dca8b90427bf690ea Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Fri, 7 Mar 2008 14:56:02 -0800 Subject: [PATCH 634/923] x86_64: make ptrace always sign-extend orig_ax to 64 bits This makes 64-bit ptrace calls setting the 64-bit orig_ax field for a 32-bit task sign-extend the low 32 bits up to 64. This matches what a 64-bit debugger expects when tracing a 32-bit task. This follows on my "x86_64 ia32 syscall restart fix". This didn't matter until that was fixed. The debugger ignores or zeros the high half of every register slot it sets (including the orig_rax pseudo-register) uniformly. It expects that the setting of the low 32 bits always has the same meaning as a 32-bit debugger setting those same 32 bits with native 32-bit facilities. This never arose before because the syscall restart check never matched any -ERESTART* values due to lack of sign extension. Before that fix, even 32-bit ptrace setting orig_eax to -1 failed to trigger the restart check anyway. So this was never noticed as a regression of 64-bit debuggers vs 32-bit debuggers on the same 64-bit kernel. Signed-off-by: Roland McGrath [ Changed to just do the sign-extension unconditionally on x86-64, since orig_ax is always just a small integer and doesn't need the full 64-bit range ] Signed-off-by: Linus Torvalds --- arch/x86/kernel/ptrace.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index f41fdc98efb..8f64abe699f 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -323,6 +323,16 @@ static int putreg(struct task_struct *child, return set_flags(child, value); #ifdef CONFIG_X86_64 + /* + * Orig_ax is really just a flag with small positive and + * negative values, so make sure to always sign-extend it + * from 32 bits so that it works correctly regardless of + * whether we come from a 32-bit environment or not. + */ + case offsetof(struct user_regs_struct, orig_ax): + value = (long) (s32) value; + break; + case offsetof(struct user_regs_struct,fs_base): if (value >= TASK_SIZE_OF(child)) return -EIO; -- GitLab From f13ba2f7d3a877967477ec8f64e1dae7a967c7e2 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sat, 8 Mar 2008 20:29:43 +0800 Subject: [PATCH 635/923] [CRYPTO] skcipher: Fix section mismatches The previous patch to move chainiv and eseqiv into blkcipher created a section mismatch for the chainiv exit function which was also called from __init. This patch removes the __exit marking on it. Signed-off-by: Herbert Xu --- crypto/chainiv.c | 4 +--- crypto/eseqiv.c | 2 -- include/crypto/internal/skcipher.h | 2 +- 3 files changed, 2 insertions(+), 6 deletions(-) diff --git a/crypto/chainiv.c b/crypto/chainiv.c index 0a7cac6e908..6da3f577e4d 100644 --- a/crypto/chainiv.c +++ b/crypto/chainiv.c @@ -318,10 +318,8 @@ int __init chainiv_module_init(void) { return crypto_register_template(&chainiv_tmpl); } -EXPORT_SYMBOL_GPL(chainiv_module_init); -void __exit chainiv_module_exit(void) +void chainiv_module_exit(void) { crypto_unregister_template(&chainiv_tmpl); } -EXPORT_SYMBOL_GPL(chainiv_module_exit); diff --git a/crypto/eseqiv.c b/crypto/eseqiv.c index 6f2cd063b6f..b14f14e314b 100644 --- a/crypto/eseqiv.c +++ b/crypto/eseqiv.c @@ -251,10 +251,8 @@ int __init eseqiv_module_init(void) { return crypto_register_template(&eseqiv_tmpl); } -EXPORT_SYMBOL_GPL(eseqiv_module_init); void __exit eseqiv_module_exit(void) { crypto_unregister_template(&eseqiv_tmpl); } -EXPORT_SYMBOL_GPL(eseqiv_module_exit); diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h index a8f12644a13..ccc32bad9a8 100644 --- a/include/crypto/internal/skcipher.h +++ b/include/crypto/internal/skcipher.h @@ -68,7 +68,7 @@ void skcipher_geniv_exit(struct crypto_tfm *tfm); int __init eseqiv_module_init(void); void __exit eseqiv_module_exit(void); int __init chainiv_module_init(void); -void __exit chainiv_module_exit(void); +void chainiv_module_exit(void); static inline struct crypto_ablkcipher *skcipher_geniv_cipher( struct crypto_ablkcipher *geniv) -- GitLab From ac5bbf21bf38b3f5eaa8cb1e17f7513dc354afda Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 6 Mar 2008 16:21:42 +0100 Subject: [PATCH 636/923] [ARM] 4851/1: ns9xxx: fix size of gpiores MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit GPIO_MAX is the number of the last gpio, not the number of gpios. So the bitmap must provide GPIO_MAX + 1 bits. Signed-off-by: Uwe Kleine-König Signed-off-by: Russell King --- arch/arm/mach-ns9xxx/gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-ns9xxx/gpio.c b/arch/arm/mach-ns9xxx/gpio.c index b2230213b98..5286e9fc1d3 100644 --- a/arch/arm/mach-ns9xxx/gpio.c +++ b/arch/arm/mach-ns9xxx/gpio.c @@ -31,7 +31,7 @@ static spinlock_t gpio_lock = __SPIN_LOCK_UNLOCKED(gpio_lock); /* only access gpiores with atomic ops */ -static DECLARE_BITMAP(gpiores, GPIO_MAX); +static DECLARE_BITMAP(gpiores, GPIO_MAX + 1); static inline int ns9xxx_valid_gpio(unsigned gpio) { -- GitLab From a4f14bace8ddf0cc26fc2d658b6dd37c71178770 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 6 Mar 2008 16:22:17 +0100 Subject: [PATCH 637/923] [ARM] 4853/1: include uImage target in make help MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Uwe Kleine-König Signed-off-by: Russell King --- arch/arm/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 7b8ff66febe..1a4649667ec 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -251,6 +251,7 @@ define archhelp echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' + echo ' uImage - U-Boot wrapped zImage' echo ' bootpImage - Combined zImage and initial RAM disk' echo ' (supply initrd image via make variable INITRD=)' echo ' install - Install uncompressed kernel' -- GitLab From 88603f1dc1bf414dc21a0361693d1270231a6c59 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Fri, 7 Mar 2008 11:41:18 +0100 Subject: [PATCH 638/923] [ARM] 4855/1: Orion: use correct ethernet unit address range Signed-off-by: Lennert Buytenhek Signed-off-by: Russell King --- arch/arm/mach-orion/common.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c index 2d6d413f023..bbc2b4ec932 100644 --- a/arch/arm/mach-orion/common.c +++ b/arch/arm/mach-orion/common.c @@ -179,8 +179,8 @@ static struct platform_device orion_ehci1 = { static struct resource orion_eth_shared_resources[] = { { - .start = ORION_ETH_PHYS_BASE, - .end = ORION_ETH_PHYS_BASE + 0xffff, + .start = ORION_ETH_PHYS_BASE + 0x2000, + .end = ORION_ETH_PHYS_BASE + 0x3fff, .flags = IORESOURCE_MEM, }, }; -- GitLab From 4c91363dc01310dc34f1621ef00d680b4404f71c Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Fri, 7 Mar 2008 11:47:23 +0100 Subject: [PATCH 639/923] [ARM] 4856/1: Orion: initialise the sixth PCIe MBUS mapping window as well Signed-off-by: Lennert Buytenhek Signed-off-by: Russell King --- arch/arm/mach-orion/addr-map.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-orion/addr-map.c b/arch/arm/mach-orion/addr-map.c index 2e2fd63643c..58cc3c0333b 100644 --- a/arch/arm/mach-orion/addr-map.c +++ b/arch/arm/mach-orion/addr-map.c @@ -97,14 +97,20 @@ #define PCIE_BAR_CTRL(n) ORION_PCIE_REG(0x1804 + ((n - 1) * 4)) #define PCIE_BAR_LO(n) ORION_PCIE_REG(0x0010 + ((n) * 8)) #define PCIE_BAR_HI(n) ORION_PCIE_REG(0x0014 + ((n) * 8)) -#define PCIE_WIN_CTRL(n) ORION_PCIE_REG(0x1820 + ((n) << 4)) -#define PCIE_WIN_BASE(n) ORION_PCIE_REG(0x1824 + ((n) << 4)) -#define PCIE_WIN_REMAP(n) ORION_PCIE_REG(0x182c + ((n) << 4)) +#define PCIE_WIN_CTRL(n) (((n) < 5) ? \ + ORION_PCIE_REG(0x1820 + ((n) << 4)) : \ + ORION_PCIE_REG(0x1880)) +#define PCIE_WIN_BASE(n) (((n) < 5) ? \ + ORION_PCIE_REG(0x1824 + ((n) << 4)) : \ + ORION_PCIE_REG(0x1884)) +#define PCIE_WIN_REMAP(n) (((n) < 5) ? \ + ORION_PCIE_REG(0x182c + ((n) << 4)) : \ + ORION_PCIE_REG(0x188c)) #define PCIE_DEFWIN_CTRL ORION_PCIE_REG(0x18b0) #define PCIE_EXPROM_WIN_CTRL ORION_PCIE_REG(0x18c0) #define PCIE_EXPROM_WIN_REMP ORION_PCIE_REG(0x18c4) #define PCIE_MAX_BARS 3 -#define PCIE_MAX_WINS 5 +#define PCIE_MAX_WINS 6 /* * Use PCIE BAR '1' for all DDR banks -- GitLab From 6efcae460186c0c1c94afff58a92784e1fc0d10b Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 8 Mar 2008 11:41:22 -0800 Subject: [PATCH 640/923] Fix waitid si_code regression In commit ee7c82da830ea860b1f9274f1f0cdf99f206e7c2 ("wait_task_stopped: simplify and fix races with SIGCONT/SIGKILL/untrace"), the magic (short) cast when storing si_code was lost in wait_task_stopped. This leaks the in-kernel CLD_* values that do not match what userland expects. Signed-off-by: Roland McGrath Cc: Oleg Nesterov Signed-off-by: Linus Torvalds --- kernel/exit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/exit.c b/kernel/exit.c index cd20bf07e9e..53872bf993f 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1378,7 +1378,7 @@ unlock_sig: if (!retval && infop) retval = put_user(0, &infop->si_errno); if (!retval && infop) - retval = put_user(why, &infop->si_code); + retval = put_user((short)why, &infop->si_code); if (!retval && infop) retval = put_user(exit_code, &infop->si_status); if (!retval && infop) -- GitLab From e48af19f56eb47a1f908ee8f16df9d246f955b21 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 25 Feb 2008 18:31:57 +0100 Subject: [PATCH 641/923] ntp: use unsigned input for do_div() The kernel NTP code shouldn't hand 64-bit *signed* values to do_div(). Make it instead hand 64-bit unsigned values. This gets rid of a couple of warnings. Signed-off-by: David Howells Cc: Roman Zippel Cc: Ingo Molnar Cc: john stultz Signed-off-by: Andrew Morton Signed-off-by: Thomas Gleixner --- kernel/time/ntp.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index c88b5910e7a..d4bca927f71 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -342,14 +342,16 @@ int do_adjtimex(struct timex *txc) freq_adj = shift_right(freq_adj, time_constant * 2 + (SHIFT_PLL + 2) * 2 - SHIFT_NSEC); if (mtemp >= MINSEC && (time_status & STA_FLL || mtemp > MAXSEC)) { + u64 utemp64; temp64 = time_offset << (SHIFT_NSEC - SHIFT_FLL); if (time_offset < 0) { - temp64 = -temp64; - do_div(temp64, mtemp); - freq_adj -= temp64; + utemp64 = -temp64; + do_div(utemp64, mtemp); + freq_adj -= utemp64; } else { - do_div(temp64, mtemp); - freq_adj += temp64; + utemp64 = temp64; + do_div(utemp64, mtemp); + freq_adj += utemp64; } } freq_adj += time_freq; -- GitLab From 38332cb98772f5ea757e6486bed7ed0381cb5f98 Mon Sep 17 00:00:00 2001 From: Segher Boessenkool Date: Tue, 4 Mar 2008 14:59:54 -0800 Subject: [PATCH 642/923] time: prevent the loop in timespec_add_ns() from being optimised away Since some architectures don't support __udivdi3(). Signed-off-by: Segher Boessenkool Cc: john stultz Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Thomas Gleixner --- include/linux/time.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/time.h b/include/linux/time.h index 2091a19f165..d32ef0ad4c0 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -174,6 +174,10 @@ static inline void timespec_add_ns(struct timespec *a, u64 ns) { ns += a->tv_nsec; while(unlikely(ns >= NSEC_PER_SEC)) { + /* The following asm() prevents the compiler from + * optimising this loop into a modulo operation. */ + asm("" : "+r"(ns)); + ns -= NSEC_PER_SEC; a->tv_sec++; } -- GitLab From a79017660ea4597ec489fab3b5aaf71dd776dfc7 Mon Sep 17 00:00:00 2001 From: Karsten Wiese Date: Tue, 4 Mar 2008 14:59:55 -0800 Subject: [PATCH 643/923] time: don't touch an offlined CPU's ts->tick_stopped in tick_cancel_sched_timer() Silences WARN_ONs in rcu_enter_nohz() and rcu_exit_nohz(), which appeared before caused by (repeated) calls to: $ echo 0 > /sys/devices/system/cpu/cpu1/online $ echo 1 > /sys/devices/system/cpu/cpu1/online Signed-off-by: Karsten Wiese Cc: johnstul@us.ibm.com Cc: Rafael Wysocki Cc: Steven Rostedt Cc: Ingo Molnar Acked-by: Paul E. McKenney Signed-off-by: Andrew Morton Signed-off-by: Thomas Gleixner --- kernel/time/tick-sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 2968298f8f3..686da821d37 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -640,7 +640,7 @@ void tick_cancel_sched_timer(int cpu) if (ts->sched_timer.base) hrtimer_cancel(&ts->sched_timer); - ts->tick_stopped = 0; + ts->nohz_mode = NOHZ_MODE_INACTIVE; } #endif /* HIGH_RES_TIMERS */ -- GitLab From 10a398d04c4a1fc395840f4d040493375f562302 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Tue, 4 Mar 2008 15:14:26 -0800 Subject: [PATCH 644/923] time: remove obsolete CLOCK_TICK_ADJUST The first version of the ntp_interval/tick_length inconsistent usage patch was recently merged as bbe4d18ac2e058c56adb0cd71f49d9ed3216a405 http://git.kernel.org/gitweb.cgi?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bbe4d18ac2e058c56adb0cd71f49d9ed3216a405 While the fix did greatly improve the situation, it was correctly pointed out by Roman that it does have a small bug: If the users change clocksources after the system has been running and NTP has made corrections, the correctoins made against the old clocksource will be applied against the new clocksource, causing error. The second attempt, which corrects the issue in the NTP_INTERVAL_LENGTH definition has also made it up-stream as commit e13a2e61dd5152f5499d2003470acf9c838eab84 http://git.kernel.org/gitweb.cgi?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e13a2e61dd5152f5499d2003470acf9c838eab84 Roman has correctly pointed out that CLOCK_TICK_ADJUST is calculated based on the PIT's frequency, and isn't really relevant to non-PIT driven clocksources (that is, clocksources other then jiffies and pit). This patch reverts both of those changes, and simply removes CLOCK_TICK_ADJUST. This does remove the granularity error correction for users of PIT and Jiffies clocksource users, but the granularity error but for the majority of users, it should be within the 500ppm range NTP can accommodate for. For systems that have granularity errors greater then 500ppm, the "ntp_tick_adj=" boot option can be used to compensate. [johnstul@us.ibm.com: provided changelog] [mattilinnanvuori@yahoo.com: maek ntp_tick_adj static] Signed-off-by: Roman Zippel Acked-by: john stultz Signed-off-by: Matti Linnanvuori Signed-off-by: Andrew Morton Cc: mingo@elte.hu Signed-off-by: Thomas Gleixner --- include/linux/timex.h | 9 +-------- kernel/time/ntp.c | 11 ++++++++++- kernel/time/timekeeping.c | 6 ++---- 3 files changed, 13 insertions(+), 13 deletions(-) diff --git a/include/linux/timex.h b/include/linux/timex.h index c3f374786a4..8ea3e71ba7f 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -232,14 +232,7 @@ static inline int ntp_synced(void) #else #define NTP_INTERVAL_FREQ (HZ) #endif - -#define CLOCK_TICK_OVERFLOW (LATCH * HZ - CLOCK_TICK_RATE) -#define CLOCK_TICK_ADJUST (((s64)CLOCK_TICK_OVERFLOW * NSEC_PER_SEC) / \ - (s64)CLOCK_TICK_RATE) - -/* Because using NSEC_PER_SEC would be too easy */ -#define NTP_INTERVAL_LENGTH ((((s64)TICK_USEC * NSEC_PER_USEC * USER_HZ) + \ - CLOCK_TICK_ADJUST) / NTP_INTERVAL_FREQ) +#define NTP_INTERVAL_LENGTH (NSEC_PER_SEC/NTP_INTERVAL_FREQ) /* Returns how long ticks are at present, in ns / 2^(SHIFT_SCALE-10). */ extern u64 current_tick_length(void); diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index d4bca927f71..5fd9b946977 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -42,12 +42,13 @@ long time_esterror = NTP_PHASE_LIMIT; /* estimated error (us) */ long time_freq; /* frequency offset (scaled ppm)*/ static long time_reftime; /* time at last adjustment (s) */ long time_adjust; +static long ntp_tick_adj; static void ntp_update_frequency(void) { u64 second_length = (u64)(tick_usec * NSEC_PER_USEC * USER_HZ) << TICK_LENGTH_SHIFT; - second_length += (s64)CLOCK_TICK_ADJUST << TICK_LENGTH_SHIFT; + second_length += (s64)ntp_tick_adj << TICK_LENGTH_SHIFT; second_length += (s64)time_freq << (TICK_LENGTH_SHIFT - SHIFT_NSEC); tick_length_base = second_length; @@ -402,3 +403,11 @@ leave: if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0) notify_cmos_timer(); return(result); } + +static int __init ntp_tick_adj_setup(char *str) +{ + ntp_tick_adj = simple_strtol(str, NULL, 0); + return 1; +} + +__setup("ntp_tick_adj=", ntp_tick_adj_setup); diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 1af9fb050fe..671af612b76 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -187,8 +187,7 @@ static void change_clocksource(void) clock->error = 0; clock->xtime_nsec = 0; - clocksource_calculate_interval(clock, - (unsigned long)(current_tick_length()>>TICK_LENGTH_SHIFT)); + clocksource_calculate_interval(clock, NTP_INTERVAL_LENGTH); tick_clock_notify(); @@ -245,8 +244,7 @@ void __init timekeeping_init(void) ntp_clear(); clock = clocksource_get_next(); - clocksource_calculate_interval(clock, - (unsigned long)(current_tick_length()>>TICK_LENGTH_SHIFT)); + clocksource_calculate_interval(clock, NTP_INTERVAL_LENGTH); clock->cycle_last = clocksource_read(clock); xtime.tv_sec = sec; -- GitLab From 393d94d98b19089ec172566e23557997931b137e Mon Sep 17 00:00:00 2001 From: Gregory Haskins Date: Sat, 8 Mar 2008 00:10:15 -0500 Subject: [PATCH 645/923] cpu hotplug: adjust root-domain->online span in response to hotplug event We currently set the root-domain online span automatically when the domain is added to the cpu if the cpu is already a member of cpu_online_map. This was done as a hack/bug-fix for s2ram, but it also causes a problem with hotplug CPU_DOWN transitioning. The right way to fix the original problem is to actually respond to CPU_UP events, instead of CPU_ONLINE, which is already too late. This solves the hung reboot regression reported by Andrew Morton and others. Signed-off-by: Gregory Haskins Acked-by: Peter Zijlstra Signed-off-by: Ingo Molnar Signed-off-by: Linus Torvalds --- kernel/sched.c | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index 52b98675acb..b02e4fc2564 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5813,6 +5813,13 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) /* Must be high prio: stop_machine expects to yield to it. */ rq = task_rq_lock(p, &flags); __setscheduler(rq, p, SCHED_FIFO, MAX_RT_PRIO-1); + + /* Update our root-domain */ + if (rq->rd) { + BUG_ON(!cpu_isset(cpu, rq->rd->span)); + cpu_set(cpu, rq->rd->online); + } + task_rq_unlock(rq, &flags); cpu_rq(cpu)->migration_thread = p; break; @@ -5821,15 +5828,6 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) case CPU_ONLINE_FROZEN: /* Strictly unnecessary, as first user will wake it. */ wake_up_process(cpu_rq(cpu)->migration_thread); - - /* Update our root-domain */ - rq = cpu_rq(cpu); - spin_lock_irqsave(&rq->lock, flags); - if (rq->rd) { - BUG_ON(!cpu_isset(cpu, rq->rd->span)); - cpu_set(cpu, rq->rd->online); - } - spin_unlock_irqrestore(&rq->lock, flags); break; #ifdef CONFIG_HOTPLUG_CPU @@ -6105,8 +6103,6 @@ static void rq_attach_root(struct rq *rq, struct root_domain *rd) rq->rd = rd; cpu_set(rq->cpu, rd->span); - if (cpu_isset(rq->cpu, cpu_online_map)) - cpu_set(rq->cpu, rd->online); for (class = sched_class_highest; class; class = class->next) { if (class->join_domain) -- GitLab From ab875cf67e89eef150ae8d4ef09c361e47b6b398 Mon Sep 17 00:00:00 2001 From: Ivan Kokshaysky Date: Sun, 9 Mar 2008 16:31:17 +0300 Subject: [PATCH 646/923] alpha: fix iommu-related boot panic This fixes a boot panic due to a typo in the recent iommu patchset from FUJITA Tomonori - the code used dma_get_max_seg_size() instead of dma_get_seg_boundary(). It also removes a couple of unnecessary BUG_ON() and ALIGN() macros. Signed-off-by: Ivan Kokshaysky Reported-and-tested-by: Bob Tracy Acked-by: FUJITA Tomonori Signed-off-by: Linus Torvalds --- arch/alpha/kernel/pci_iommu.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index be6fa105cd3..e07a23fc5b7 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -144,15 +144,14 @@ iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena, unsigned long base; unsigned long boundary_size; - BUG_ON(arena->dma_base & ~PAGE_MASK); base = arena->dma_base >> PAGE_SHIFT; - if (dev) - boundary_size = ALIGN(dma_get_max_seg_size(dev) + 1, PAGE_SIZE) - >> PAGE_SHIFT; - else - boundary_size = ALIGN(1UL << 32, PAGE_SIZE) >> PAGE_SHIFT; - - BUG_ON(!is_power_of_2(boundary_size)); + if (dev) { + boundary_size = dma_get_seg_boundary(dev) + 1; + BUG_ON(!is_power_of_2(boundary_size)); + boundary_size >>= PAGE_SHIFT; + } else { + boundary_size = 1UL << (32 - PAGE_SHIFT); + } /* Search forward for the first mask-aligned sequence of N free ptes */ ptes = arena->ptes; -- GitLab From 4fa45725df0f00c2bf86a0fc2670e88bfe0ceee7 Mon Sep 17 00:00:00 2001 From: Jon Mason Date: Sun, 9 Mar 2008 13:54:12 -0700 Subject: [PATCH 647/923] RDMA/cxgb3: Fix iwch_create_cq() off-by-one error The cxbg3 driver is unnecessarily decreasing the number of CQ entries by one when creating a CQ. This will cause the CQ not to have as many entries as requested by the user if the user requests a power of 2 size. Signed-off-by: Jon Mason Acked-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/iwch_provider.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index ee3d63cd1f9..b2ea9210467 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -189,7 +189,7 @@ static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int ve return ERR_PTR(-ENOMEM); } chp->rhp = rhp; - chp->ibcq.cqe = (1 << chp->cq.size_log2) - 1; + chp->ibcq.cqe = 1 << chp->cq.size_log2; spin_lock_init(&chp->lock); atomic_set(&chp->refcnt, 1); init_waitqueue_head(&chp->wait); -- GitLab From 3426fadfa20454f124203768857e8f18ab4909bd Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Mon, 10 Mar 2008 01:12:08 +0100 Subject: [PATCH 648/923] Do not include linux/backing-dev.h twice Don't include linux/backing-dev.h twice in mm/filemap.c, it's pointless. Signed-off-by: Jesper Juhl Signed-off-by: Linus Torvalds --- mm/filemap.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/filemap.c b/mm/filemap.c index 5c74b68935a..ab98557e228 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -28,7 +28,6 @@ #include #include #include -#include #include #include #include -- GitLab From cdeeeae056a429e729ae9e914fa8142ee45bee93 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 9 Mar 2008 22:22:27 -0700 Subject: [PATCH 649/923] Linux 2.6.25-rc5 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index ae78a31a9de..0eb23e5bfc8 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 25 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME = Funky Weasel is Jiggy wit it # *DOCUMENTATION* -- GitLab From ad562c71592ae76440c27bba9bfa9c16cc851560 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 7 Mar 2008 17:59:03 -0600 Subject: [PATCH 650/923] [POWERPC] 83xx: Make 83xx perfmon support selectable Not all e300 cores support the performance monitors, and the ones that don't will be confused by the mf/mtpmr instructions. This allows the support to be optional, so the 8349 can turn it off while the 8379 can turn it on. Sadly, those aren't config options, so it will be left to the defconfigs and the users to make that determination. Signed-off-by: Andy Fleming Signed-off-by: Kumar Gala --- arch/powerpc/platforms/Kconfig | 1 - arch/powerpc/platforms/Kconfig.cputype | 7 ++++++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index 0afd2259554..a578b966ecb 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -22,7 +22,6 @@ config PPC_83xx select FSL_SOC select MPC83xx select IPIC - select FSL_EMB_PERFMON config PPC_86xx bool "Freescale 86xx" diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 73d81ce14b6..0c3face0ddb 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -113,7 +113,12 @@ config FSL_BOOKE default y config FSL_EMB_PERFMON - bool + bool "Freescale Embedded Perfmon" + depends on E500 || PPC_83xx + help + This is the Performance Monitor support found on the e500 core + and some e300 cores (c3 and c4). Select this only if your + core supports the Embedded Performance Monitor APU config PTE_64BIT bool -- GitLab From f4299e1943d0c9ce29a6c5dc7c7674a82a17b315 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 10 Mar 2008 13:24:49 +0000 Subject: [PATCH 651/923] riscom8: Fix hang on load This has been around for a while but nobody reported it until recently. Resubmitting the fix as it's appropriate for 2.6.25 Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/riscom8.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c index 8fc4fe4e38f..589ac6f65b9 100644 --- a/drivers/char/riscom8.c +++ b/drivers/char/riscom8.c @@ -1620,14 +1620,8 @@ static int __init rc_init_drivers(void) static void rc_release_drivers(void) { - unsigned long flags; - - spin_lock_irqsave(&riscom_lock, flags); - tty_unregister_driver(riscom_driver); put_tty_driver(riscom_driver); - - spin_unlock_irqrestore(&riscom_lock, flags); } #ifndef MODULE -- GitLab From 86f4e5d4335556191b436b41b0ad2f719c4a98d4 Mon Sep 17 00:00:00 2001 From: Ionut Nicu Date: Fri, 7 Mar 2008 19:27:59 +0200 Subject: [PATCH 652/923] [POWERPC] QE: Make qe_get_firmware_info reentrant The function was returning NULL the second time it was called if the firmware was uploaded from the boot loader or the first time it was called if the firmware was uploaded from the kernel. Signed-off-by: Ionut Nicu Acked-By: Timur Tabi Signed-off-by: Kumar Gala --- arch/powerpc/sysdev/qe_lib/qe.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index f963fbf21ef..cc81fd1141b 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -609,7 +609,10 @@ struct qe_firmware_info *qe_get_firmware_info(void) * If we haven't checked yet, and a driver hasn't uploaded a firmware * yet, then check the device tree for information. */ - if (initialized || qe_firmware_uploaded) + if (qe_firmware_uploaded) + return &qe_firmware_info; + + if (initialized) return NULL; initialized = 1; -- GitLab From 3a4780a85d4a160a471ed887bfce58b414f556b1 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 29 Feb 2008 01:56:06 -0800 Subject: [PATCH 653/923] [PATCH] fs/ocfs2/dlm/dlmdomain.c: fix printk warning fs/ocfs2/dlm/dlmdomain.c: In function 'dlm_send_join_cancels': fs/ocfs2/dlm/dlmdomain.c:983: warning: format '%u' expects type 'unsigned int', but argument 7 has type 'long unsigned int' Signed-off-by: Andrew Morton Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmdomain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 638d2ebb892..906974cfbf1 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -937,7 +937,7 @@ static int dlm_send_join_cancels(struct dlm_ctxt *dlm, sizeof(unsigned long))) { mlog(ML_ERROR, "map_size %u != BITS_TO_LONGS(O2NM_MAX_NODES) %u\n", - map_size, BITS_TO_LONGS(O2NM_MAX_NODES)); + map_size, (unsigned)BITS_TO_LONGS(O2NM_MAX_NODES)); return -EINVAL; } -- GitLab From 2af37ce82d199d1d8cd6286f42f37d321627a807 Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Thu, 28 Feb 2008 10:41:55 +0800 Subject: [PATCH 654/923] ocfs2: Use dlm_print_one_lock_resource for lock resource print __dlm_print_one_lock_resource must be called with spin_lock the res->spinlock. While in some cases, we use it without this precondition and lead to the failure of assert_spin_locked. So call dlm_print_one_lock_resource instead. Signed-off-by: Tao Ma Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmconvert.c | 2 +- fs/ocfs2/dlm/dlmmaster.c | 4 ++-- fs/ocfs2/dlm/dlmrecovery.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c index ecb4d997221..75997b4deaf 100644 --- a/fs/ocfs2/dlm/dlmconvert.c +++ b/fs/ocfs2/dlm/dlmconvert.c @@ -487,7 +487,7 @@ int dlm_convert_lock_handler(struct o2net_msg *msg, u32 len, void *data, "cookie=%u:%llu\n", dlm_get_lock_cookie_node(be64_to_cpu(cnv->cookie)), dlm_get_lock_cookie_seq(be64_to_cpu(cnv->cookie))); - __dlm_print_one_lock_resource(res); + dlm_print_one_lock_resource(res); goto leave; } diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index c92d1b19fc0..6d318b0bd81 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -2348,7 +2348,7 @@ int dlm_deref_lockres_handler(struct o2net_msg *msg, u32 len, void *data, mlog(ML_ERROR, "%s:%.*s: node %u trying to drop ref " "but it is already dropped!\n", dlm->name, res->lockname.len, res->lockname.name, node); - __dlm_print_one_lock_resource(res); + dlm_print_one_lock_resource(res); } ret = 0; goto done; @@ -2408,7 +2408,7 @@ static void dlm_deref_lockres_worker(struct dlm_work_item *item, void *data) mlog(ML_ERROR, "%s:%.*s: node %u trying to drop ref " "but it is already dropped!\n", dlm->name, res->lockname.len, res->lockname.name, node); - __dlm_print_one_lock_resource(res); + dlm_print_one_lock_resource(res); } dlm_lockres_put(res); diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 91f747b8a53..550d4e62b32 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -1191,7 +1191,7 @@ static int dlm_add_lock_to_array(struct dlm_lock *lock, (ml->type == LKM_EXMODE || memcmp(mres->lvb, lock->lksb->lvb, DLM_LVB_LEN))) { mlog(ML_ERROR, "mismatched lvbs!\n"); - __dlm_print_one_lock_resource(lock->lockres); + dlm_print_one_lock_resource(lock->lockres); BUG(); } memcpy(mres->lvb, lock->lksb->lvb, DLM_LVB_LEN); -- GitLab From 0f71b7b40f55de909e40fa5ab217a5da3439c7d8 Mon Sep 17 00:00:00 2001 From: Joel Becker Date: Tue, 12 Feb 2008 14:56:25 -0800 Subject: [PATCH 655/923] ocfs2: Fix endian bug in o2dlm protocol negotiation. struct dlm_query_join_packet is made up of four one-byte fields. They are effectively in big-endian order already. However, little-endian machines swap them before putting the packet on the wire (because query_join's response is a status, and that status is treated as a u32 on the wire). Thus, a big-endian and little-endian machines will treat this structure differently. The solution is to have little-endian machines swap the structure when converting from the structure to the u32 representation. Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmcommon.h | 20 ++++---- fs/ocfs2/dlm/dlmdomain.c | 101 +++++++++++++++++++++++++-------------- 2 files changed, 76 insertions(+), 45 deletions(-) diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index 9843ee17ea2..1f939631ab7 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -602,17 +602,19 @@ enum dlm_query_join_response_code { JOIN_PROTOCOL_MISMATCH, }; +struct dlm_query_join_packet { + u8 code; /* Response code. dlm_minor and fs_minor + are only valid if this is JOIN_OK */ + u8 dlm_minor; /* The minor version of the protocol the + dlm is speaking. */ + u8 fs_minor; /* The minor version of the protocol the + filesystem is speaking. */ + u8 reserved; +}; + union dlm_query_join_response { u32 intval; - struct { - u8 code; /* Response code. dlm_minor and fs_minor - are only valid if this is JOIN_OK */ - u8 dlm_minor; /* The minor version of the protocol the - dlm is speaking. */ - u8 fs_minor; /* The minor version of the protocol the - filesystem is speaking. */ - u8 reserved; - } packet; + struct dlm_query_join_packet packet; }; struct dlm_lock_request diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 906974cfbf1..0879d86113e 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -713,14 +713,46 @@ static int dlm_query_join_proto_check(char *proto_type, int node, return rc; } +/* + * struct dlm_query_join_packet is made up of four one-byte fields. They + * are effectively in big-endian order already. However, little-endian + * machines swap them before putting the packet on the wire (because + * query_join's response is a status, and that status is treated as a u32 + * on the wire). Thus, a big-endian and little-endian machines will treat + * this structure differently. + * + * The solution is to have little-endian machines swap the structure when + * converting from the structure to the u32 representation. This will + * result in the structure having the correct format on the wire no matter + * the host endian format. + */ +static void dlm_query_join_packet_to_wire(struct dlm_query_join_packet *packet, + u32 *wire) +{ + union dlm_query_join_response response; + + response.packet = *packet; + *wire = cpu_to_be32(response.intval); +} + +static void dlm_query_join_wire_to_packet(u32 wire, + struct dlm_query_join_packet *packet) +{ + union dlm_query_join_response response; + + response.intval = cpu_to_be32(wire); + *packet = response.packet; +} + static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, void **ret_data) { struct dlm_query_join_request *query; - union dlm_query_join_response response = { - .packet.code = JOIN_DISALLOW, + struct dlm_query_join_packet packet = { + .code = JOIN_DISALLOW, }; struct dlm_ctxt *dlm = NULL; + u32 response; u8 nodenum; query = (struct dlm_query_join_request *) msg->buf; @@ -737,11 +769,11 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, mlog(0, "node %u is not in our live map yet\n", query->node_idx); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; goto respond; } - response.packet.code = JOIN_OK_NO_MAP; + packet.code = JOIN_OK_NO_MAP; spin_lock(&dlm_domain_lock); dlm = __dlm_lookup_domain_full(query->domain, query->name_len); @@ -760,7 +792,7 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, mlog(0, "disallow join as node %u does not " "have node %u in its nodemap\n", query->node_idx, nodenum); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; goto unlock_respond; } } @@ -780,23 +812,23 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, /*If this is a brand new context and we * haven't started our join process yet, then * the other node won the race. */ - response.packet.code = JOIN_OK_NO_MAP; + packet.code = JOIN_OK_NO_MAP; } else if (dlm->joining_node != DLM_LOCK_RES_OWNER_UNKNOWN) { /* Disallow parallel joins. */ - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; } else if (dlm->reco.state & DLM_RECO_STATE_ACTIVE) { mlog(0, "node %u trying to join, but recovery " "is ongoing.\n", bit); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; } else if (test_bit(bit, dlm->recovery_map)) { mlog(0, "node %u trying to join, but it " "still needs recovery.\n", bit); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; } else if (test_bit(bit, dlm->domain_map)) { mlog(0, "node %u trying to join, but it " "is still in the domain! needs recovery?\n", bit); - response.packet.code = JOIN_DISALLOW; + packet.code = JOIN_DISALLOW; } else { /* Alright we're fully a part of this domain * so we keep some state as to who's joining @@ -807,19 +839,15 @@ static int dlm_query_join_handler(struct o2net_msg *msg, u32 len, void *data, if (dlm_query_join_proto_check("DLM", bit, &dlm->dlm_locking_proto, &query->dlm_proto)) { - response.packet.code = - JOIN_PROTOCOL_MISMATCH; + packet.code = JOIN_PROTOCOL_MISMATCH; } else if (dlm_query_join_proto_check("fs", bit, &dlm->fs_locking_proto, &query->fs_proto)) { - response.packet.code = - JOIN_PROTOCOL_MISMATCH; + packet.code = JOIN_PROTOCOL_MISMATCH; } else { - response.packet.dlm_minor = - query->dlm_proto.pv_minor; - response.packet.fs_minor = - query->fs_proto.pv_minor; - response.packet.code = JOIN_OK; + packet.dlm_minor = query->dlm_proto.pv_minor; + packet.fs_minor = query->fs_proto.pv_minor; + packet.code = JOIN_OK; __dlm_set_joining_node(dlm, query->node_idx); } } @@ -830,9 +858,10 @@ unlock_respond: spin_unlock(&dlm_domain_lock); respond: - mlog(0, "We respond with %u\n", response.packet.code); + mlog(0, "We respond with %u\n", packet.code); - return response.intval; + dlm_query_join_packet_to_wire(&packet, &response); + return response; } static int dlm_assert_joined_handler(struct o2net_msg *msg, u32 len, void *data, @@ -968,7 +997,8 @@ static int dlm_request_join(struct dlm_ctxt *dlm, { int status; struct dlm_query_join_request join_msg; - union dlm_query_join_response join_resp; + struct dlm_query_join_packet packet; + u32 join_resp; mlog(0, "querying node %d\n", node); @@ -984,11 +1014,12 @@ static int dlm_request_join(struct dlm_ctxt *dlm, status = o2net_send_message(DLM_QUERY_JOIN_MSG, DLM_MOD_KEY, &join_msg, sizeof(join_msg), node, - &join_resp.intval); + &join_resp); if (status < 0 && status != -ENOPROTOOPT) { mlog_errno(status); goto bail; } + dlm_query_join_wire_to_packet(join_resp, &packet); /* -ENOPROTOOPT from the net code means the other side isn't listening for our message type -- that's fine, it means @@ -997,10 +1028,10 @@ static int dlm_request_join(struct dlm_ctxt *dlm, if (status == -ENOPROTOOPT) { status = 0; *response = JOIN_OK_NO_MAP; - } else if (join_resp.packet.code == JOIN_DISALLOW || - join_resp.packet.code == JOIN_OK_NO_MAP) { - *response = join_resp.packet.code; - } else if (join_resp.packet.code == JOIN_PROTOCOL_MISMATCH) { + } else if (packet.code == JOIN_DISALLOW || + packet.code == JOIN_OK_NO_MAP) { + *response = packet.code; + } else if (packet.code == JOIN_PROTOCOL_MISMATCH) { mlog(ML_NOTICE, "This node requested DLM locking protocol %u.%u and " "filesystem locking protocol %u.%u. At least one of " @@ -1012,14 +1043,12 @@ static int dlm_request_join(struct dlm_ctxt *dlm, dlm->fs_locking_proto.pv_minor, node); status = -EPROTO; - *response = join_resp.packet.code; - } else if (join_resp.packet.code == JOIN_OK) { - *response = join_resp.packet.code; + *response = packet.code; + } else if (packet.code == JOIN_OK) { + *response = packet.code; /* Use the same locking protocol as the remote node */ - dlm->dlm_locking_proto.pv_minor = - join_resp.packet.dlm_minor; - dlm->fs_locking_proto.pv_minor = - join_resp.packet.fs_minor; + dlm->dlm_locking_proto.pv_minor = packet.dlm_minor; + dlm->fs_locking_proto.pv_minor = packet.fs_minor; mlog(0, "Node %d responds JOIN_OK with DLM locking protocol " "%u.%u and fs locking protocol %u.%u\n", @@ -1031,11 +1060,11 @@ static int dlm_request_join(struct dlm_ctxt *dlm, } else { status = -EINVAL; mlog(ML_ERROR, "invalid response %d from node %u\n", - join_resp.packet.code, node); + packet.code, node); } mlog(0, "status %d, node %d response is %d\n", status, node, - *response); + *response); bail: return status; -- GitLab From 90d99779a4cc134daaf8910d814b7a8a5d1e8970 Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Tue, 22 Jan 2008 20:52:20 +0100 Subject: [PATCH 656/923] [PATCH] [OCFS2]: constify function pointer tables Signed-off-by: Jan Engelhardt Signed-off-by: Mark Fasheh --- fs/ocfs2/dlmglue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index f7794306b2b..1f1873bf41f 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -2409,7 +2409,7 @@ static int ocfs2_dlm_seq_show(struct seq_file *m, void *v) return 0; } -static struct seq_operations ocfs2_dlm_seq_ops = { +static const struct seq_operations ocfs2_dlm_seq_ops = { .start = ocfs2_dlm_seq_start, .stop = ocfs2_dlm_seq_stop, .next = ocfs2_dlm_seq_next, -- GitLab From 4338ab6a750303cbae4cc76cc7de5edba6598ebe Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Mon, 3 Mar 2008 10:53:02 +0800 Subject: [PATCH 657/923] ocfs2: Fix an endian bug in online resize. In ocfs2_group_add, 'cr' is a disk field of type 'ocfs2_chain_rec', and we were putting cpu byteorder values into it. Swap things to the right endian before storing. Signed-off-by: Tao Ma Signed-off-by: Mark Fasheh --- fs/ocfs2/resize.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c index 37835ffcb03..8166968e901 100644 --- a/fs/ocfs2/resize.c +++ b/fs/ocfs2/resize.c @@ -597,7 +597,7 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input) memset(cr, 0, sizeof(struct ocfs2_chain_rec)); } - cr->c_blkno = le64_to_cpu(input->group); + cr->c_blkno = cpu_to_le64(input->group); le32_add_cpu(&cr->c_total, input->clusters * cl_bpc); le32_add_cpu(&cr->c_free, input->frees * cl_bpc); -- GitLab From 2c5c54aca9d0263f81bd4886232835ba31f7635a Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sat, 1 Mar 2008 14:04:20 -0800 Subject: [PATCH 658/923] ocfs2/dlm: Add missing dlm_lock_put()s Normally locks for remote nodes are freed when that node sends an UNLOCK message to the master. The master node tags an DLM_UNLOCK_FREE_LOCK action to do an extra put on the lock at the end. However, there are times when the master node has to free the locks for the remote nodes forcibly. Two cases when this happens are: 1. When the master has migrated the lockres plus all locks to another node. 2. When the master is clearing all the locks of a dead node. It was in the above two conditions that the dlm was missing the extra put. Signed-off-by: Sunil Mushran Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmmaster.c | 3 +++ fs/ocfs2/dlm/dlmrecovery.c | 9 +++++++++ 2 files changed, 12 insertions(+) diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index 6d318b0bd81..320081d53f2 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -2933,6 +2933,9 @@ static void dlm_remove_nonlocal_locks(struct dlm_ctxt *dlm, dlm_lockres_clear_refmap_bit(lock->ml.node, res); list_del_init(&lock->list); dlm_lock_put(lock); + /* In a normal unlock, we would have added a + * DLM_UNLOCK_FREE_LOCK action. Force it. */ + dlm_lock_put(lock); } } queue++; diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 550d4e62b32..db17727594a 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -2130,11 +2130,16 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm, assert_spin_locked(&dlm->spinlock); assert_spin_locked(&res->spinlock); + /* We do two dlm_lock_put(). One for removing from list and the other is + * to force the DLM_UNLOCK_FREE_LOCK action so as to free the locks */ + /* TODO: check pending_asts, pending_basts here */ list_for_each_entry_safe(lock, next, &res->granted, list) { if (lock->ml.node == dead_node) { list_del_init(&lock->list); dlm_lock_put(lock); + /* Can't schedule DLM_UNLOCK_FREE_LOCK - do manually */ + dlm_lock_put(lock); freed++; } } @@ -2142,6 +2147,8 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm, if (lock->ml.node == dead_node) { list_del_init(&lock->list); dlm_lock_put(lock); + /* Can't schedule DLM_UNLOCK_FREE_LOCK - do manually */ + dlm_lock_put(lock); freed++; } } @@ -2149,6 +2156,8 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm, if (lock->ml.node == dead_node) { list_del_init(&lock->list); dlm_lock_put(lock); + /* Can't schedule DLM_UNLOCK_FREE_LOCK - do manually */ + dlm_lock_put(lock); freed++; } } -- GitLab From 52987e2ab456c1a828046494aac53819b1454341 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sat, 1 Mar 2008 14:04:21 -0800 Subject: [PATCH 659/923] ocfs2/dlm: Add missing dlm_lockres_put()s in migration path During migration, the recovery master node may be asked to master a lockres it may not know about. In that case, it would not only have to create a lockres and add it to the hash, but also remember to to do the _put_ corresponding to the kref_init in dlm_init_lockres(), as soon as the migration is completed. Yes, we don't wait for the dlm_purge_lockres() to do that matching put. Note the ref added for it being in the hash protects the lockres from being freed prematurely. This patch adds that missing put, as described above, to plug a memleak. Signed-off-by: Sunil Mushran Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmcommon.h | 1 + fs/ocfs2/dlm/dlmrecovery.c | 40 ++++++++++++++++++++++++++++++++------ 2 files changed, 35 insertions(+), 6 deletions(-) diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index 1f939631ab7..dc8ea666efd 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -176,6 +176,7 @@ struct dlm_mig_lockres_priv { struct dlm_lock_resource *lockres; u8 real_master; + u8 extra_ref; }; struct dlm_assert_master_priv diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index db17727594a..f9468355242 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -1327,6 +1327,7 @@ int dlm_mig_lockres_handler(struct o2net_msg *msg, u32 len, void *data, (struct dlm_migratable_lockres *)msg->buf; int ret = 0; u8 real_master; + u8 extra_refs = 0; char *buf = NULL; struct dlm_work_item *item = NULL; struct dlm_lock_resource *res = NULL; @@ -1404,16 +1405,28 @@ int dlm_mig_lockres_handler(struct o2net_msg *msg, u32 len, void *data, __dlm_insert_lockres(dlm, res); spin_unlock(&dlm->spinlock); + /* Add an extra ref for this lock-less lockres lest the + * dlm_thread purges it before we get the chance to add + * locks to it */ + dlm_lockres_get(res); + + /* There are three refs that need to be put. + * 1. Taken above. + * 2. kref_init in dlm_new_lockres()->dlm_init_lockres(). + * 3. dlm_lookup_lockres() + * The first one is handled at the end of this function. The + * other two are handled in the worker thread after locks have + * been attached. Yes, we don't wait for purge time to match + * kref_init. The lockres will still have atleast one ref + * added because it is in the hash __dlm_insert_lockres() */ + extra_refs++; + /* now that the new lockres is inserted, * make it usable by other processes */ spin_lock(&res->spinlock); res->state &= ~DLM_LOCK_RES_IN_PROGRESS; spin_unlock(&res->spinlock); wake_up(&res->wq); - - /* add an extra ref for just-allocated lockres - * otherwise the lockres will be purged immediately */ - dlm_lockres_get(res); } /* at this point we have allocated everything we need, @@ -1443,12 +1456,17 @@ int dlm_mig_lockres_handler(struct o2net_msg *msg, u32 len, void *data, dlm_init_work_item(dlm, item, dlm_mig_lockres_worker, buf); item->u.ml.lockres = res; /* already have a ref */ item->u.ml.real_master = real_master; + item->u.ml.extra_ref = extra_refs; spin_lock(&dlm->work_lock); list_add_tail(&item->list, &dlm->work_list); spin_unlock(&dlm->work_lock); queue_work(dlm->dlm_worker, &dlm->dispatched_work); leave: + /* One extra ref taken needs to be put here */ + if (extra_refs) + dlm_lockres_put(res); + dlm_put(dlm); if (ret < 0) { if (buf) @@ -1464,17 +1482,19 @@ leave: static void dlm_mig_lockres_worker(struct dlm_work_item *item, void *data) { - struct dlm_ctxt *dlm = data; + struct dlm_ctxt *dlm; struct dlm_migratable_lockres *mres; int ret = 0; struct dlm_lock_resource *res; u8 real_master; + u8 extra_ref; dlm = item->dlm; mres = (struct dlm_migratable_lockres *)data; res = item->u.ml.lockres; real_master = item->u.ml.real_master; + extra_ref = item->u.ml.extra_ref; if (real_master == DLM_LOCK_RES_OWNER_UNKNOWN) { /* this case is super-rare. only occurs if @@ -1517,6 +1537,12 @@ again: } leave: + /* See comment in dlm_mig_lockres_handler() */ + if (res) { + if (extra_ref) + dlm_lockres_put(res); + dlm_lockres_put(res); + } kfree(data); mlog_exit(ret); } @@ -1644,7 +1670,8 @@ int dlm_master_requery_handler(struct o2net_msg *msg, u32 len, void *data, /* retry!? */ BUG(); } - } + } else /* put.. incase we are not the master */ + dlm_lockres_put(res); spin_unlock(&res->spinlock); } spin_unlock(&dlm->spinlock); @@ -1921,6 +1948,7 @@ void dlm_move_lockres_to_recovery_list(struct dlm_ctxt *dlm, "Recovering res %s:%.*s, is already on recovery list!\n", dlm->name, res->lockname.len, res->lockname.name); list_del_init(&res->recovering); + dlm_lockres_put(res); } /* We need to hold a reference while on the recovery list */ dlm_lockres_get(res); -- GitLab From b31cfc0237f89c3a8bc8f31b5da996e71b543214 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sat, 1 Mar 2008 14:04:22 -0800 Subject: [PATCH 660/923] ocfs2/dlm: Add missing dlm_lockres_put()s dlm_master_request_handler() forgot to put a lockres when dlm_assert_master_worker() failed or was skipped. Signed-off-by: Sunil Mushran Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmmaster.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index 320081d53f2..ea6b8957786 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -1663,7 +1663,12 @@ way_up_top: dlm_put_mle(tmpmle); } send_response: - + /* + * __dlm_lookup_lockres() grabbed a reference to this lockres. + * The reference is released by dlm_assert_master_worker() under + * the call to dlm_dispatch_assert_master(). If + * dlm_assert_master_worker() isn't called, we drop it here. + */ if (dispatch_assert) { if (response != DLM_MASTER_RESP_YES) mlog(ML_ERROR, "invalid response %d\n", response); @@ -1678,7 +1683,11 @@ send_response: if (ret < 0) { mlog(ML_ERROR, "failed to dispatch assert master work\n"); response = DLM_MASTER_RESP_ERROR; + dlm_lockres_put(res); } + } else { + if (res) + dlm_lockres_put(res); } dlm_put(dlm); -- GitLab From 535f7026fddafce6d0a0524db01a432c23a0a7b4 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sat, 1 Mar 2008 14:04:24 -0800 Subject: [PATCH 661/923] ocfs2/dlm: Print message showing the recovery master Knowing the dlm recovery master helps in debugging recovery issues. This patch prints a message on the recovery master node. Signed-off-by: Sunil Mushran Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmrecovery.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index f9468355242..bcb9260c373 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -519,9 +519,9 @@ static int dlm_do_recovery(struct dlm_ctxt *dlm) return 0; master_here: - mlog(0, "(%d) mastering recovery of %s:%u here(this=%u)!\n", - task_pid_nr(dlm->dlm_reco_thread_task), - dlm->name, dlm->reco.dead_node, dlm->node_num); + mlog(ML_NOTICE, "(%d) Node %u is the Recovery Master for the Dead Node " + "%u for Domain %s\n", task_pid_nr(dlm->dlm_reco_thread_task), + dlm->node_num, dlm->reco.dead_node, dlm->name); status = dlm_remaster_locks(dlm, dlm->reco.dead_node); if (status < 0) { -- GitLab From c824c3c723f2e37a00b3b739a55b28de595fd72e Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sat, 1 Mar 2008 14:04:25 -0800 Subject: [PATCH 662/923] ocfs2/dlm: dlm_thread should not sleep while holding the dlm_spinlock This patch addresses the bug in which the dlm_thread could go to sleep while holding the dlm_spinlock. Signed-off-by: Sunil Mushran Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmthread.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c index cebd089f895..4060bb328bc 100644 --- a/fs/ocfs2/dlm/dlmthread.c +++ b/fs/ocfs2/dlm/dlmthread.c @@ -176,12 +176,14 @@ static int dlm_purge_lockres(struct dlm_ctxt *dlm, res->lockname.name, master); if (!master) { + /* drop spinlock... retake below */ + spin_unlock(&dlm->spinlock); + spin_lock(&res->spinlock); /* This ensures that clear refmap is sent after the set */ __dlm_wait_on_lockres_flags(res, DLM_LOCK_RES_SETREF_INPROG); spin_unlock(&res->spinlock); - /* drop spinlock to do messaging, retake below */ - spin_unlock(&dlm->spinlock); + /* clear our bit from the master's refmap, ignore errors */ ret = dlm_drop_lockres_ref(dlm, res); if (ret < 0) { -- GitLab From cdef59a94c2fc962ada379d4240d556db7b56d55 Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Wed, 5 Mar 2008 15:49:55 +0800 Subject: [PATCH 663/923] ocfs2: Fix NULL pointer dereferences in o2net In some situations, ocfs2_set_nn_state might get called with sc = NULL and valid = 0. If sc = NULL, we can't dereference it to get the o2nm_node member. Instead, do what o2net_initialize_handshake does and use NULL when calling o2net_reconnect_delay and o2net_idle_timeout. Signed-off-by: Tao Ma Signed-off-by: Mark Fasheh --- fs/ocfs2/cluster/tcp.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index ee50c9610e7..b8057c51b20 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -451,9 +451,9 @@ static void o2net_set_nn_state(struct o2net_node *nn, /* delay if we're withing a RECONNECT_DELAY of the * last attempt */ delay = (nn->nn_last_connect_attempt + - msecs_to_jiffies(o2net_reconnect_delay(sc->sc_node))) + msecs_to_jiffies(o2net_reconnect_delay(NULL))) - jiffies; - if (delay > msecs_to_jiffies(o2net_reconnect_delay(sc->sc_node))) + if (delay > msecs_to_jiffies(o2net_reconnect_delay(NULL))) delay = 0; mlog(ML_CONN, "queueing conn attempt in %lu jiffies\n", delay); queue_delayed_work(o2net_wq, &nn->nn_connect_work, delay); @@ -1552,12 +1552,11 @@ static void o2net_connect_expired(struct work_struct *work) spin_lock(&nn->nn_lock); if (!nn->nn_sc_valid) { - struct o2nm_node *node = nn->nn_sc->sc_node; mlog(ML_ERROR, "no connection established with node %u after " "%u.%u seconds, giving up and returning errors.\n", o2net_num_from_nn(nn), - o2net_idle_timeout(node) / 1000, - o2net_idle_timeout(node) % 1000); + o2net_idle_timeout(NULL) / 1000, + o2net_idle_timeout(NULL) % 1000); o2net_set_nn_state(nn, NULL, 0, -ENOTCONN); } -- GitLab From f73d1e6ca6985b43a1871467463cba632fbc624d Mon Sep 17 00:00:00 2001 From: Eugene Teo Date: Sat, 9 Feb 2008 23:53:17 +0800 Subject: [PATCH 664/923] lguest: make sure cpu is initialized before accessing it If req is LHREQ_INITIALIZE, and the guest has been initialized before (unlikely), it will attempt to access cpu->tsk even though cpu is not yet initialized. Signed-off-by: Eugene Teo Signed-off-by: Rusty Russell --- drivers/lguest/lguest_user.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index 85d42d3d01a..2221485b077 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c @@ -241,15 +241,16 @@ static ssize_t write(struct file *file, const char __user *in, cpu = &lg->cpus[cpu_id]; if (!cpu) return -EINVAL; - } - /* Once the Guest is dead, all you can do is read() why it died. */ - if (lg && lg->dead) - return -ENOENT; + /* Once the Guest is dead, you can only read() why it died. */ + if (lg->dead) + return -ENOENT; - /* If you're not the task which owns the Guest, you can only break */ - if (lg && current != cpu->tsk && req != LHREQ_BREAK) - return -EPERM; + /* If you're not the task which owns the Guest, all you can do + * is break the Launcher out of running the Guest. */ + if (current != cpu->tsk && req != LHREQ_BREAK) + return -EPERM; + } switch (req) { case LHREQ_INITIALIZE: -- GitLab From f14ae652baa3d72ae378f0c06b89cc2c4ef15ff8 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 11 Mar 2008 09:35:56 -0500 Subject: [PATCH 665/923] lguest: fix __get_vm_area usage. Robert Bragg's 5dc331852848a38ca00a2817e5b98a1d0561b116 tightened (ie. fixed) the checking in __get_vm_area, and it broke lguest. lguest should pass the exact "end" it wants, not some random constant (it was possible previously that it would actually get an address different from SWITCHER_ADDR). Also, Fabio Checconi pointed out that we should make sure we're not hitting the fixmap area. Signed-off-by: Rusty Russell Cc: Robert Bragg --- drivers/lguest/core.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index 7743d73768d..c632c08cbbd 100644 --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c @@ -69,11 +69,22 @@ static __init int map_switcher(void) switcher_page[i] = virt_to_page(addr); } + /* First we check that the Switcher won't overlap the fixmap area at + * the top of memory. It's currently nowhere near, but it could have + * very strange effects if it ever happened. */ + if (SWITCHER_ADDR + (TOTAL_SWITCHER_PAGES+1)*PAGE_SIZE > FIXADDR_START){ + err = -ENOMEM; + printk("lguest: mapping switcher would thwack fixmap\n"); + goto free_pages; + } + /* Now we reserve the "virtual memory area" we want: 0xFFC00000 * (SWITCHER_ADDR). We might not get it in theory, but in practice - * it's worked so far. */ + * it's worked so far. The end address needs +1 because __get_vm_area + * allocates an extra guard page, so we need space for that. */ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, - VM_ALLOC, SWITCHER_ADDR, VMALLOC_END); + VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR + + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); if (!switcher_vma) { err = -ENOMEM; printk("lguest: could not map switcher pages high\n"); -- GitLab From 3fabc55f34b72720e8a10aa442bd3415a211edb3 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 11 Mar 2008 09:35:56 -0500 Subject: [PATCH 666/923] lguest: Sanitize the lguest clock. Now the TSC code handles a zero return from calculate_cpu_khz(), lguest can simply pass through the value it gets from the Host: if non-zero, all the normal TSC code applies. Otherwise (or if the Host really doesn't support TSC), the clocksource code will fall back to the slower but reasonable lguest clock. Signed-off-by: Rusty Russell --- arch/x86/lguest/boot.c | 53 +++++++++++++++++------------------------- 1 file changed, 21 insertions(+), 32 deletions(-) diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index cccb38a5965..9c27c104d83 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -84,7 +84,6 @@ struct lguest_data lguest_data = { .blocked_interrupts = { 1 }, /* Block timer interrupts */ .syscall_vec = SYSCALL_VECTOR, }; -static cycle_t clock_base; /*G:037 async_hcall() is pretty simple: I'm quite proud of it really. We have a * ring buffer of stored hypercalls which the Host will run though next time we @@ -327,8 +326,8 @@ static void lguest_cpuid(unsigned int *ax, unsigned int *bx, case 1: /* Basic feature request. */ /* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */ *cx &= 0x00002201; - /* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, FPU. */ - *dx &= 0x07808101; + /* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU. */ + *dx &= 0x07808111; /* The Host can do a nice optimization if it knows that the * kernel mappings (addresses above 0xC0000000 or whatever * PAGE_OFFSET is set to) haven't changed. But Linux calls @@ -595,19 +594,25 @@ static unsigned long lguest_get_wallclock(void) return lguest_data.time.tv_sec; } +/* The TSC is a Time Stamp Counter. The Host tells us what speed it runs at, + * or 0 if it's unusable as a reliable clock source. This matches what we want + * here: if we return 0 from this function, the x86 TSC clock will not register + * itself. */ +static unsigned long lguest_cpu_khz(void) +{ + return lguest_data.tsc_khz; +} + +/* If we can't use the TSC, the kernel falls back to our "lguest_clock", where + * we read the time value given to us by the Host. */ static cycle_t lguest_clock_read(void) { unsigned long sec, nsec; - /* If the Host tells the TSC speed, we can trust that. */ - if (lguest_data.tsc_khz) - return native_read_tsc(); - - /* If we can't use the TSC, we read the time value written by the Host. - * Since it's in two parts (seconds and nanoseconds), we risk reading - * it just as it's changing from 99 & 0.999999999 to 100 and 0, and - * getting 99 and 0. As Linux tends to come apart under the stress of - * time travel, we must be careful: */ + /* Since the time is in two parts (seconds and nanoseconds), we risk + * reading it just as it's changing from 99 & 0.999999999 to 100 and 0, + * and getting 99 and 0. As Linux tends to come apart under the stress + * of time travel, we must be careful: */ do { /* First we read the seconds part. */ sec = lguest_data.time.tv_sec; @@ -622,14 +627,14 @@ static cycle_t lguest_clock_read(void) /* Now if the seconds part has changed, try again. */ } while (unlikely(lguest_data.time.tv_sec != sec)); - /* Our non-TSC clock is in real nanoseconds. */ + /* Our lguest clock is in real nanoseconds. */ return sec*1000000000ULL + nsec; } -/* This is what we tell the kernel is our clocksource. */ +/* This is the fallback clocksource: lower priority than the TSC clocksource. */ static struct clocksource lguest_clock = { .name = "lguest", - .rating = 400, + .rating = 200, .read = lguest_clock_read, .mask = CLOCKSOURCE_MASK(64), .mult = 1 << 22, @@ -637,12 +642,6 @@ static struct clocksource lguest_clock = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -/* The "scheduler clock" is just our real clock, adjusted to start at zero */ -static unsigned long long lguest_sched_clock(void) -{ - return cyc2ns(&lguest_clock, lguest_clock_read() - clock_base); -} - /* We also need a "struct clock_event_device": Linux asks us to set it to go * off some time in the future. Actually, James Morris figured all this out, I * just applied the patch. */ @@ -712,19 +711,8 @@ static void lguest_time_init(void) /* Set up the timer interrupt (0) to go to our simple timer routine */ set_irq_handler(0, lguest_time_irq); - /* Our clock structure looks like arch/x86/kernel/tsc_32.c if we can - * use the TSC, otherwise it's a dumb nanosecond-resolution clock. - * Either way, the "rating" is set so high that it's always chosen over - * any other clocksource. */ - if (lguest_data.tsc_khz) - lguest_clock.mult = clocksource_khz2mult(lguest_data.tsc_khz, - lguest_clock.shift); - clock_base = lguest_clock_read(); clocksource_register(&lguest_clock); - /* Now we've set up our clock, we can use it as the scheduler clock */ - pv_time_ops.sched_clock = lguest_sched_clock; - /* We can't set cpumask in the initializer: damn C limitations! Set it * here and register our timer device. */ lguest_clockevent.cpumask = cpumask_of_cpu(0); @@ -995,6 +983,7 @@ __init void lguest_init(void) /* time operations */ pv_time_ops.get_wallclock = lguest_get_wallclock; pv_time_ops.time_init = lguest_time_init; + pv_time_ops.get_cpu_khz = lguest_cpu_khz; /* Now is a good time to look at the implementations of these functions * before returning to the rest of lguest_init(). */ -- GitLab From 4357bd9453b81e0a41db1dec16e06d74256b7560 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 11 Mar 2008 09:35:57 -0500 Subject: [PATCH 667/923] lguest: Revert 1ce70c4fac3c3954bd48c035f448793867592bc0, fix real problem. Ahmed managed to crash the Host in release_pgd(), which cannot be a Guest bug, and indeed it wasn't. The bug was that handing a 0 as the address of the toplevel page table being manipulated can cause the lookup code in find_pgdir() to return an uninitialized cache entry (we shadow up to 4 top level page tables for each Guest). Commit 37cc8d7f963ba2deec29c9b68716944516a3244f introduced this behaviour in the Guest, uncovering the bug. The patch which he submitted (which removed the /4 from the index calculation) simply ensured that these high-indexed entries hit the early exit path of guest_set_pmd(). But you get lots of segfaults in guest userspace as the PMDs aren't being updated. Signed-off-by: Rusty Russell --- arch/x86/lguest/boot.c | 2 +- drivers/lguest/page_tables.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 9c27c104d83..a104c532ff7 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -480,7 +480,7 @@ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval) { *pmdp = pmdval; lazy_hcall(LHCALL_SET_PMD, __pa(pmdp)&PAGE_MASK, - (__pa(pmdp)&(PAGE_SIZE-1)), 0); + (__pa(pmdp)&(PAGE_SIZE-1))/4, 0); } /* There are a couple of legacy places where the kernel sets a PTE, but we diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c index 275f23c2deb..a7f64a9d67e 100644 --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -391,7 +391,7 @@ static unsigned int find_pgdir(struct lguest *lg, unsigned long pgtable) { unsigned int i; for (i = 0; i < ARRAY_SIZE(lg->pgdirs); i++) - if (lg->pgdirs[i].gpgdir == pgtable) + if (lg->pgdirs[i].pgdir && lg->pgdirs[i].gpgdir == pgtable) break; return i; } -- GitLab From 1ef36fa64e65079de18ff5179a51af58e44d49a6 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 10 Mar 2008 16:39:03 +0100 Subject: [PATCH 668/923] lguest: Do not append space to guests kernel command line The lguest launcher appends a space to the kernel command line (if kernel arguments are specified on its command line). This space is unneeded. More importantly, this appended space will make Red Hat's nash script interpreter (used in a Fedora style initramfs) add an empty argument to init's command line. This empty argument will make kernel arguments like "init=/bin/bash" fail (because the shell will try to execute a script with an empty name). This could be considered a bug in nash, but is easily fixed in the lguest launcher too. Signed-off-by: Paul Bolle Signed-off-by: Rusty Russell --- Documentation/lguest/lguest.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index 0f23d67f958..bec5a32e409 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c @@ -486,9 +486,12 @@ static void concat(char *dst, char *args[]) unsigned int i, len = 0; for (i = 0; args[i]; i++) { + if (i) { + strcat(dst+len, " "); + len++; + } strcpy(dst+len, args[i]); - strcat(dst+len, " "); - len += strlen(args[i]) + 1; + len += strlen(args[i]); } /* In case it's empty. */ dst[len] = '\0'; -- GitLab From ef79df263062fd04fe9db4ee1b9f014a87a8e924 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 9 Mar 2008 03:37:16 +0530 Subject: [PATCH 669/923] sysdev: fix problem with sysdev_class being re-registered We need to initialize the kobject for a sysdev_class as it could have been recycled (stupid static kobjects...) We also do the same thing in case sysdev devices are being re-registered. Thanks to Balaji Rao for pointing out the problem. Signed-off-by: Balaji Rao Tested-by: Mikael Pettersson Signed-off-by: Greg Kroah-Hartman --- drivers/base/sys.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 2f79c55acdc..8e13fd94216 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -133,6 +133,7 @@ int sysdev_class_register(struct sysdev_class * cls) pr_debug("Registering sysdev class '%s'\n", kobject_name(&cls->kset.kobj)); INIT_LIST_HEAD(&cls->drivers); + memset(&cls->kset.kobj, 0x00, sizeof(struct kobject)); cls->kset.kobj.parent = &system_kset->kobj; cls->kset.kobj.ktype = &ktype_sysdev_class; cls->kset.kobj.kset = system_kset; @@ -227,6 +228,9 @@ int sysdev_register(struct sys_device * sysdev) pr_debug("Registering sys device '%s'\n", kobject_name(&sysdev->kobj)); + /* initialize the kobject to 0, in case it had previously been used */ + memset(&sysdev->kobj, 0x00, sizeof(struct kobject)); + /* Make sure the kset is set */ sysdev->kobj.kset = &cls->kset; -- GitLab From 661b4e89daf10e3f65a1086fd95c7a84720ccdd2 Mon Sep 17 00:00:00 2001 From: Frank Seidel Date: Thu, 6 Mar 2008 21:45:57 +0100 Subject: [PATCH 670/923] nozomi: fix initialization and early flow control access Due to some flaws in the initialization and flow control code kernel oopses could be triggered e.g. when accessing the card too early after insertion. See e.g. kernel.org bug #10077. The main part of the fix is a trivial state management making sure the card is realy ready to use before allowing any access. Signed-off-by: Frank Seidel Signed-off-by: Greg Kroah-Hartman --- drivers/char/nozomi.c | 61 ++++++++++++++++++++++++++++++------------- 1 file changed, 43 insertions(+), 18 deletions(-) diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c index dfaab2322de..6d0dc5f9b6b 100644 --- a/drivers/char/nozomi.c +++ b/drivers/char/nozomi.c @@ -190,6 +190,14 @@ enum card_type { F32_8 = 8192, /* 3072 bytes downl. + 1024 bytes uplink * 2 -> 8192 */ }; +/* Initialization states a card can be in */ +enum card_state { + NOZOMI_STATE_UKNOWN = 0, + NOZOMI_STATE_ENABLED = 1, /* pci device enabled */ + NOZOMI_STATE_ALLOCATED = 2, /* config setup done */ + NOZOMI_STATE_READY = 3, /* flowcontrols received */ +}; + /* Two different toggle channels exist */ enum channel_type { CH_A = 0, @@ -385,6 +393,7 @@ struct nozomi { spinlock_t spin_mutex; /* secures access to registers and tty */ unsigned int index_start; + enum card_state state; u32 open_ttys; }; @@ -686,6 +695,7 @@ static int nozomi_read_config_table(struct nozomi *dc) dc->last_ier = dc->last_ier | CTRL_DL; writew(dc->last_ier, dc->reg_ier); + dc->state = NOZOMI_STATE_ALLOCATED; dev_info(&dc->pdev->dev, "Initialization OK!\n"); return 1; } @@ -944,6 +954,14 @@ static int receive_flow_control(struct nozomi *dc) case CTRL_APP2: port = PORT_APP2; enable_ier = APP2_DL; + if (dc->state == NOZOMI_STATE_ALLOCATED) { + /* + * After card initialization the flow control + * received for APP2 is always the last + */ + dc->state = NOZOMI_STATE_READY; + dev_info(&dc->pdev->dev, "Device READY!\n"); + } break; default: dev_err(&dc->pdev->dev, @@ -1366,22 +1384,12 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev, dc->pdev = pdev; - /* Find out what card type it is */ - nozomi_get_card_type(dc); - ret = pci_enable_device(dc->pdev); if (ret) { dev_err(&pdev->dev, "Failed to enable PCI Device\n"); goto err_free; } - start = pci_resource_start(dc->pdev, 0); - if (start == 0) { - dev_err(&pdev->dev, "No I/O address for card detected\n"); - ret = -ENODEV; - goto err_disable_device; - } - ret = pci_request_regions(dc->pdev, NOZOMI_NAME); if (ret) { dev_err(&pdev->dev, "I/O address 0x%04x already in use\n", @@ -1389,6 +1397,16 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev, goto err_disable_device; } + start = pci_resource_start(dc->pdev, 0); + if (start == 0) { + dev_err(&pdev->dev, "No I/O address for card detected\n"); + ret = -ENODEV; + goto err_rel_regs; + } + + /* Find out what card type it is */ + nozomi_get_card_type(dc); + dc->base_addr = ioremap(start, dc->card_type); if (!dc->base_addr) { dev_err(&pdev->dev, "Unable to map card MMIO\n"); @@ -1425,6 +1443,14 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev, dc->index_start = ndev_idx * MAX_PORT; ndevs[ndev_idx] = dc; + pci_set_drvdata(pdev, dc); + + /* Enable RESET interrupt */ + dc->last_ier = RESET; + iowrite16(dc->last_ier, dc->reg_ier); + + dc->state = NOZOMI_STATE_ENABLED; + for (i = 0; i < MAX_PORT; i++) { mutex_init(&dc->port[i].tty_sem); dc->port[i].tty_open_count = 0; @@ -1433,12 +1459,6 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev, &pdev->dev); } - /* Enable RESET interrupt. */ - dc->last_ier = RESET; - writew(dc->last_ier, dc->reg_ier); - - pci_set_drvdata(pdev, dc); - return 0; err_free_sbuf: @@ -1553,7 +1573,7 @@ static int ntty_open(struct tty_struct *tty, struct file *file) struct nozomi *dc = get_dc_by_tty(tty); unsigned long flags; - if (!port || !dc) + if (!port || !dc || dc->state != NOZOMI_STATE_READY) return -ENODEV; if (mutex_lock_interruptible(&port->tty_sem)) @@ -1716,6 +1736,10 @@ static int ntty_tiocmget(struct tty_struct *tty, struct file *file) static int ntty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { + struct nozomi *dc = get_dc_by_tty(tty); + unsigned long flags; + + spin_lock_irqsave(&dc->spin_mutex, flags); if (set & TIOCM_RTS) set_rts(tty, 1); else if (clear & TIOCM_RTS) @@ -1725,6 +1749,7 @@ static int ntty_tiocmset(struct tty_struct *tty, struct file *file, set_dtr(tty, 1); else if (clear & TIOCM_DTR) set_dtr(tty, 0); + spin_unlock_irqrestore(&dc->spin_mutex, flags); return 0; } @@ -1762,7 +1787,7 @@ static int ntty_ioctl_tiocgicount(struct port *port, void __user *argp) icount.brk = cnow.brk; icount.buf_overrun = cnow.buf_overrun; - return copy_to_user(argp, &icount, sizeof(icount)); + return copy_to_user(argp, &icount, sizeof(icount)) ? -EFAULT : 0; } static int ntty_ioctl(struct tty_struct *tty, struct file *file, -- GitLab From fbab976d7ce4556d4212d554f766dae461d22e16 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Fri, 7 Mar 2008 08:57:54 -0600 Subject: [PATCH 671/923] firmware: provide stubs for the FW_LOADER=n case libsas has a case where it uses the firmware loader to provide services, but doesn't want to select it all the time. This currently causes a compile failure in libsas if FW_LOADER=n. Fix this by providing error stubs for the firmware loader API in the FW_LOADER=n case. Signed-off-by: James Bottomley Cc: Randy Dunlap Signed-off-by: Greg Kroah-Hartman --- include/linux/firmware.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/include/linux/firmware.h b/include/linux/firmware.h index 33d8f2087b6..4d10c7328d2 100644 --- a/include/linux/firmware.h +++ b/include/linux/firmware.h @@ -10,7 +10,10 @@ struct firmware { size_t size; u8 *data; }; + struct device; + +#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE) int request_firmware(const struct firmware **fw, const char *name, struct device *device); int request_firmware_nowait( @@ -19,4 +22,24 @@ int request_firmware_nowait( void (*cont)(const struct firmware *fw, void *context)); void release_firmware(const struct firmware *fw); +#else +static inline int request_firmware(const struct firmware **fw, + const char *name, + struct device *device) +{ + return -EINVAL; +} +static inline int request_firmware_nowait( + struct module *module, int uevent, + const char *name, struct device *device, void *context, + void (*cont)(const struct firmware *fw, void *context)) +{ + return -EINVAL; +} + +static inline void release_firmware(const struct firmware *fw) +{ +} +#endif + #endif -- GitLab From e88a0c2ca81207a75afe5bbb8020541dabf606ac Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sun, 9 Mar 2008 11:57:56 -0500 Subject: [PATCH 672/923] drivers: fix dma_get_required_mask There's a bug in the current implementation of dma_get_required_mask() where it ands the returned mask with the current device mask. This rather defeats the purpose if you're using the call to determine what your mask should be (since you will at that time have the default DMA_32BIT_MASK). This bug results in any driver that uses this function *always* getting a 32 bit mask, which is wrong. Fix by removing the and with dev->dma_mask. Signed-off-by: James Bottomley Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/base/platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index efaf282c438..911ec600fe7 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -648,7 +648,7 @@ u64 dma_get_required_mask(struct device *dev) high_totalram += high_totalram - 1; mask = (((u64)high_totalram) << 32) + 0xffffffff; } - return mask & *dev->dma_mask; + return mask; } EXPORT_SYMBOL_GPL(dma_get_required_mask); #endif -- GitLab From 8647af71d623671a020a54d860f77bc0fa2e606e Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 6 Mar 2008 15:41:50 -0800 Subject: [PATCH 673/923] PCI: rename DECLARE_PCI_DEVICE_TABLE to DEFINE_PCI_DEVICE_TABLE a) DECLARE_PCI_DEVICE_TABLE is misnamed. It is used to *define* tables, not to declare them. It should be called DEFINE_PCI_DEVICE_TABLE. b) It's lame, anyway. We could implement any number of such helper thingies, but we choose not to. So I wouldn't go adding code which uses this thing until it has a correct name, and until we've decided that we actually want to live with it. From: Andrew Morton Cc: Jonas Bonn Signed-off-by: Greg Kroah-Hartman --- Documentation/pci.txt | 4 ++-- include/linux/pci.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/pci.txt b/Documentation/pci.txt index bb7bd27d468..d2c2e6e2b22 100644 --- a/Documentation/pci.txt +++ b/Documentation/pci.txt @@ -123,7 +123,7 @@ initialization with a pointer to a structure describing the driver The ID table is an array of struct pci_device_id entries ending with an -all-zero entry; use of the macro DECLARE_PCI_DEVICE_TABLE is the preferred +all-zero entry; use of the macro DEFINE_PCI_DEVICE_TABLE is the preferred method of declaring the table. Each entry consists of: vendor,device Vendor and device ID to match (or PCI_ANY_ID) @@ -193,7 +193,7 @@ Tips on when/where to use the above attributes: o Do not mark the struct pci_driver. o The ID table array should be marked __devinitconst; this is done - automatically if the table is declared with DECLARE_PCI_DEVICE_TABLE(). + automatically if the table is declared with DEFINE_PCI_DEVICE_TABLE(). o The probe() and remove() functions should be marked __devinit and __devexit respectively. All initialization functions diff --git a/include/linux/pci.h b/include/linux/pci.h index f3165e7ac43..38eff194775 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -389,13 +389,13 @@ struct pci_driver { #define to_pci_driver(drv) container_of(drv, struct pci_driver, driver) /** - * DECLARE_PCI_DEVICE_TABLE - macro used to describe a pci device table + * DEFINE_PCI_DEVICE_TABLE - macro used to describe a pci device table * @_table: device table name * * This macro is used to create a struct pci_device_id array (a device table) * in a generic manner. */ -#define DECLARE_PCI_DEVICE_TABLE(_table) \ +#define DEFINE_PCI_DEVICE_TABLE(_table) \ const struct pci_device_id _table[] __devinitconst /** -- GitLab From b91aac29bb9b7cab34b0297449bd2a16944b83d9 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sat, 8 Mar 2008 02:16:07 +0100 Subject: [PATCH 674/923] PCI Hotplug: Fix small mem leak in IBM Hot Plug Controller Driver In drivers/pci/hotplug/ibmphp_ebda.c::ebda_rsrc_controller(), storage is allocated with kzalloc() and assigned to 'tmp_slot'. Then lots of stuff, like ->flag, ->supported_speed etc is set in tmp_slot. A bit further down there's then this test : if (!bus_info_ptr1) { rc = -ENODEV; goto error; } At this point, tmp_slot has not been assigned to anything, so when erroring-out we want to free it, but nothing at the 'error:' label free's 'tmp_slot' - and we can't really free 'tmp_slot' at 'error:' since we may jump to that label later when 'tmp_slot' *has* been used and we do not want it freed. So, the only sane option left seems to be to kfree(tmp_slot) just before jumping to the 'error:' label in the one place where this is what actually makes sense. The following patch does just that and thus kills off a tiny potential memory leak. Signed-off-by: Jesper Juhl Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/ibmphp_ebda.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c index 600ed7b67ae..bbccde9f228 100644 --- a/drivers/pci/hotplug/ibmphp_ebda.c +++ b/drivers/pci/hotplug/ibmphp_ebda.c @@ -963,6 +963,7 @@ static int __init ebda_rsrc_controller (void) bus_info_ptr1 = ibmphp_find_same_bus_num (hpc_ptr->slots[index].slot_bus_num); if (!bus_info_ptr1) { + kfree(tmp_slot); rc = -ENODEV; goto error; } -- GitLab From b5e85dee2a5433246d5b7488918a1a0ad22c046a Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Mon, 10 Mar 2008 16:41:06 -0700 Subject: [PATCH 675/923] [NETFILTER]: nfnetlink: fix ifdef in nfnetlink_compat.h Use __KERNEL__ instead of __KERNEL to make sure the headers are not usable by the kernel. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/netfilter/nfnetlink_compat.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/netfilter/nfnetlink_compat.h b/include/linux/netfilter/nfnetlink_compat.h index 02a42d875cf..e1451760c9c 100644 --- a/include/linux/netfilter/nfnetlink_compat.h +++ b/include/linux/netfilter/nfnetlink_compat.h @@ -1,6 +1,6 @@ #ifndef _NFNETLINK_COMPAT_H #define _NFNETLINK_COMPAT_H -#ifndef __KERNEL +#ifndef __KERNEL__ /* Old nfnetlink macros for userspace */ /* nfnetlink groups: Up to 32 maximum */ -- GitLab From cabaa9bfb01eb4cee97ffb8a18405f4c5175d3d9 Mon Sep 17 00:00:00 2001 From: Eric Leblond Date: Mon, 10 Mar 2008 16:41:43 -0700 Subject: [PATCH 676/923] [NETFILTER]: nfnetlink_queue: fix computation of allocated size for netlink skb. Size of the netlink skb was wrongly computed because the formula was using NLMSG_ALIGN instead of NLMSG_SPACE. NLMSG_ALIGN does not add the room for netlink header as NLMSG_SPACE does. This was causing a failure of message building in some cases. On my test system, all messages for packets in range [8*k+41, 8*k+48] where k is an integer were invalid and the corresponding packets were dropped. Signed-off-by: Eric Leblond Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nfnetlink_queue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c index 0043d3a9f87..c0cc3d3618a 100644 --- a/net/netfilter/nfnetlink_queue.c +++ b/net/netfilter/nfnetlink_queue.c @@ -224,7 +224,7 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue, struct net_device *indev; struct net_device *outdev; - size = NLMSG_ALIGN(sizeof(struct nfgenmsg)) + size = NLMSG_SPACE(sizeof(struct nfgenmsg)) + nla_total_size(sizeof(struct nfqnl_msg_packet_hdr)) + nla_total_size(sizeof(u_int32_t)) /* ifindex */ + nla_total_size(sizeof(u_int32_t)) /* ifindex */ -- GitLab From 7000d38d6126d6ef928605bdacebc9f12279c5aa Mon Sep 17 00:00:00 2001 From: Eric Leblond Date: Mon, 10 Mar 2008 16:42:04 -0700 Subject: [PATCH 677/923] [NETFILTER]: nfnetlink_log: fix computation of netlink skb size This patch is similar to nfnetlink_queue fixes. It fixes the computation of skb size by using NLMSG_SPACE instead of NLMSG_ALIGN. Signed-off-by: Eric Leblond Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nfnetlink_log.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index 7efa40d4739..c6802c0d6ed 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -556,7 +556,7 @@ nfulnl_log_packet(unsigned int pf, /* FIXME: do we want to make the size calculation conditional based on * what is actually present? way more branches and checks, but more * memory efficient... */ - size = NLMSG_ALIGN(sizeof(struct nfgenmsg)) + size = NLMSG_SPACE(sizeof(struct nfgenmsg)) + nla_total_size(sizeof(struct nfulnl_msg_packet_hdr)) + nla_total_size(sizeof(u_int32_t)) /* ifindex */ + nla_total_size(sizeof(u_int32_t)) /* ifindex */ -- GitLab From b507cc9710d8b6e3013468b40522e235342fc84a Mon Sep 17 00:00:00 2001 From: Pete Zaitcev Date: Tue, 4 Mar 2008 23:28:42 -0800 Subject: [PATCH 678/923] USB: fix usb-serial generic recursive lock Nobody should be using the generic usb-serial for anything other than testing. Still, it's not a good thing that it's easy to lock up. There is a traceback from NMI oopser here: https://bugzilla.redhat.com/show_bug.cgi?id=431379 But in short, if a line discipline has a chance to echo anything, input can loop back a write method. So, don't call tty_flip_buffer_push from under a lock taken on write path. Signed-off-by: Pete Zaitcev Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/generic.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 97fa3c42843..7cfce9dabb9 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -323,7 +323,7 @@ static void flush_and_resubmit_read_urb (struct usb_serial_port *port) room = tty_buffer_request_room(tty, urb->actual_length); if (room) { tty_insert_flip_string(tty, urb->transfer_buffer, room); - tty_flip_buffer_push(tty); /* is this allowed from an URB callback ? */ + tty_flip_buffer_push(tty); } } @@ -349,10 +349,12 @@ void usb_serial_generic_read_bulk_callback (struct urb *urb) /* Throttle the device if requested by tty */ spin_lock_irqsave(&port->lock, flags); - if (!(port->throttled = port->throttle_req)) - /* Handle data and continue reading from device */ + if (!(port->throttled = port->throttle_req)) { + spin_unlock_irqrestore(&port->lock, flags); flush_and_resubmit_read_urb(port); - spin_unlock_irqrestore(&port->lock, flags); + } else { + spin_unlock_irqrestore(&port->lock, flags); + } } EXPORT_SYMBOL_GPL(usb_serial_generic_read_bulk_callback); -- GitLab From 8a20acc5fef23755e75f3c48d90c64ce4dc62304 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 4 Mar 2008 15:25:08 -0800 Subject: [PATCH 679/923] USB: drivers/usb/storage/sddr55.c: fix uninitialized var warnings drivers/usb/storage/sddr55.c: In function 'sddr55_transport': drivers/usb/storage/sddr55.c:526: warning: 'deviceID' may be used uninitialized in this function drivers/usb/storage/sddr55.c:525: warning: 'manufacturerID' may be used uninitialized in this function Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/sddr55.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/storage/sddr55.c b/drivers/usb/storage/sddr55.c index d43a3415e12..6d14327c921 100644 --- a/drivers/usb/storage/sddr55.c +++ b/drivers/usb/storage/sddr55.c @@ -522,8 +522,8 @@ int sddr55_reset(struct us_data *us) { static unsigned long sddr55_get_capacity(struct us_data *us) { - unsigned char manufacturerID; - unsigned char deviceID; + unsigned char uninitialized_var(manufacturerID); + unsigned char uninitialized_var(deviceID); int result; struct sddr55_card_info *info = (struct sddr55_card_info *)us->extra; -- GitLab From 6f6f06ee6ada13b0fb39c800f8567ff81d4e807d Mon Sep 17 00:00:00 2001 From: Dmitry Shapin Date: Tue, 4 Mar 2008 15:25:10 -0800 Subject: [PATCH 680/923] USB: cypress_m8: add UPS Powercom (0d9f:0002) Add support for UPS Powercom USB interface (0d9f:0002) in chip CY7C63723. In my case, this Powercom BNT800AP. Signed-off-by: Dmitry Shapin Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/cypress_m8.c | 2 ++ drivers/usb/serial/cypress_m8.h | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 08c65c1a377..779d07851a4 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -94,6 +94,7 @@ static struct usb_device_id id_table_earthmate [] = { static struct usb_device_id id_table_cyphidcomrs232 [] = { { USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) }, + { USB_DEVICE(VENDOR_ID_POWERCOM, PRODUCT_ID_UPS) }, { } /* Terminating entry */ }; @@ -106,6 +107,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB) }, { USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) }, { USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) }, + { USB_DEVICE(VENDOR_ID_POWERCOM, PRODUCT_ID_UPS) }, { USB_DEVICE(VENDOR_ID_DAZZLE, PRODUCT_ID_CA42) }, { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h index e1c7c27e18b..0388065bb79 100644 --- a/drivers/usb/serial/cypress_m8.h +++ b/drivers/usb/serial/cypress_m8.h @@ -19,6 +19,10 @@ #define VENDOR_ID_CYPRESS 0x04b4 #define PRODUCT_ID_CYPHIDCOM 0x5500 +/* Powercom UPS, chip CY7C63723 */ +#define VENDOR_ID_POWERCOM 0x0d9f +#define PRODUCT_ID_UPS 0x0002 + /* Nokia CA-42 USB to serial cable */ #define VENDOR_ID_DAZZLE 0x07d0 #define PRODUCT_ID_CA42 0x4101 -- GitLab From ff17e953cb70e37ceb7b487113a0a37441052219 Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Tue, 4 Mar 2008 15:25:11 -0800 Subject: [PATCH 681/923] USB: usbaudio: handle kcalloc failure sound/usb/usbaudio.c (check_hw_params_convention): Handle kcalloc failure. Signed-off-by: Jim Meyering Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- sound/usb/usbaudio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c index 675672f313b..f48838a078c 100644 --- a/sound/usb/usbaudio.c +++ b/sound/usb/usbaudio.c @@ -1762,6 +1762,8 @@ static int check_hw_params_convention(struct snd_usb_substream *subs) channels = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL); rates = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL); + if (!channels || !rates) + goto __out; list_for_each(p, &subs->fmt_list) { struct audioformat *f; -- GitLab From 72ab6414cf1eaeae8cece64290123d82357fda7e Mon Sep 17 00:00:00 2001 From: Dirk DeSchepper Date: Wed, 5 Mar 2008 08:26:18 +0000 Subject: [PATCH 682/923] USB: option: add novatel device ids This updates the option driver with a lot more novatel driver ids. From: Dirk DeSchepper Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 75 ++++++++++++++++++++++++++++++------- 1 file changed, 62 insertions(+), 13 deletions(-) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 828a4377ec6..a396fbbdc9c 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -111,6 +111,42 @@ static int option_send_setup(struct usb_serial_port *port); #define HUAWEI_PRODUCT_E220BIS 0x1004 #define NOVATELWIRELESS_VENDOR_ID 0x1410 + +/* MERLIN EVDO PRODUCTS */ +#define NOVATELWIRELESS_PRODUCT_V640 0x1100 +#define NOVATELWIRELESS_PRODUCT_V620 0x1110 +#define NOVATELWIRELESS_PRODUCT_V740 0x1120 +#define NOVATELWIRELESS_PRODUCT_V720 0x1130 + +/* MERLIN HSDPA/HSPA PRODUCTS */ +#define NOVATELWIRELESS_PRODUCT_U730 0x1400 +#define NOVATELWIRELESS_PRODUCT_U740 0x1410 +#define NOVATELWIRELESS_PRODUCT_U870 0x1420 +#define NOVATELWIRELESS_PRODUCT_XU870 0x1430 +#define NOVATELWIRELESS_PRODUCT_X950D 0x1450 + +/* EXPEDITE PRODUCTS */ +#define NOVATELWIRELESS_PRODUCT_EV620 0x2100 +#define NOVATELWIRELESS_PRODUCT_ES720 0x2110 +#define NOVATELWIRELESS_PRODUCT_E725 0x2120 +#define NOVATELWIRELESS_PRODUCT_EU730 0x2400 +#define NOVATELWIRELESS_PRODUCT_EU740 0x2410 +#define NOVATELWIRELESS_PRODUCT_EU870D 0x2420 + +/* OVATION PRODUCTS */ +#define NOVATELWIRELESS_PRODUCT_MC727 0x4100 +#define NOVATELWIRELESS_PRODUCT_MC950D 0x4400 + +/* FUTURE NOVATEL PRODUCTS */ +#define NOVATELWIRELESS_PRODUCT_EVDO_1 0x6000 +#define NOVATELWIRELESS_PRODUCT_HSPA_1 0x7000 +#define NOVATELWIRELESS_PRODUCT_EMBEDDED_1 0x8000 +#define NOVATELWIRELESS_PRODUCT_GLOBAL_1 0x9000 +#define NOVATELWIRELESS_PRODUCT_EVDO_2 0x6001 +#define NOVATELWIRELESS_PRODUCT_HSPA_2 0x7001 +#define NOVATELWIRELESS_PRODUCT_EMBEDDED_2 0x8001 +#define NOVATELWIRELESS_PRODUCT_GLOBAL_2 0x9001 + #define DELL_VENDOR_ID 0x413C #define KYOCERA_VENDOR_ID 0x0c88 @@ -168,21 +204,34 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) }, - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1100) }, /* Novatel Merlin XS620/S640 */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1110) }, /* Novatel Merlin S620 */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1120) }, /* Novatel Merlin EX720 */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1130) }, /* Novatel Merlin S720 */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1400) }, /* Novatel U730 */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1410) }, /* Novatel U740 */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1420) }, /* Novatel EU870 */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1430) }, /* Novatel Merlin XU870 HSDPA/3G */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2100) }, /* Novatel EV620 CDMA/EV-DO */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2110) }, /* Novatel Merlin ES620 / Merlin ES720 / Ovation U720 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2130) }, /* Novatel Merlin ES620 SM Bus */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2410) }, /* Novatel EU740 */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x4100) }, /* Novatel U727 */ - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x4400) }, /* Novatel MC950 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x5010) }, /* Novatel U727 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */ + { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */ { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */ { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */ -- GitLab From 33635efafef6994891496c266dc9f48c2987ec96 Mon Sep 17 00:00:00 2001 From: Li Yang Date: Thu, 6 Mar 2008 18:40:07 +0800 Subject: [PATCH 683/923] USB: fsl_usb2_udc: fix broken Kconfig The patch fixes broken Kconfig caused by the name change of MPC834x option. It also makes fsl_usb2_udc selectable on new platforms like MPC837x. Signed-off-by: Li Yang Acked-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index c1395516468..6f45dd669b3 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -131,7 +131,7 @@ config USB_ATMEL_USBA config USB_GADGET_FSL_USB2 boolean "Freescale Highspeed USB DR Peripheral Controller" - depends on MPC834x || PPC_MPC831x + depends on FSL_SOC select USB_GADGET_DUALSPEED help Some of Freescale PowerPC processors have a High Speed -- GitLab From e61062587d0484c3852e822e844416c728362438 Mon Sep 17 00:00:00 2001 From: "Robert P. J. Day" Date: Fri, 7 Mar 2008 11:02:00 -0500 Subject: [PATCH 684/923] USB: g_printer.h does not need to be "unifdef"ed. Since the header file g_printer.h doesn't depend on __KERNEL__, there's no need to unifdef it in the Kbuild file. Signed-off-by: Robert P. J. Day Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/Kbuild | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/usb/Kbuild b/include/linux/usb/Kbuild index b8cba1dcb2c..42e84fc315e 100644 --- a/include/linux/usb/Kbuild +++ b/include/linux/usb/Kbuild @@ -3,5 +3,5 @@ header-y += cdc.h header-y += ch9.h header-y += gadgetfs.h header-y += midi.h -unifdef-y += g_printer.h +header-y += g_printer.h -- GitLab From 20f590df4fbb962d1f8fcb12c4b4e790c7054045 Mon Sep 17 00:00:00 2001 From: "Robert P. J. Day" Date: Fri, 7 Mar 2008 11:40:07 -0500 Subject: [PATCH 685/923] USB: Remove __KERNEL__ check from non-exported gadget.h. Since the header file gadget.h isn't being exported to userspace, there seems to be little point having a __KERNEL__ proprocessor check. Signed-off-by: Robert P. J. Day Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/gadget.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index aa3047ff00d..f3295296b43 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -15,8 +15,6 @@ #ifndef __LINUX_USB_GADGET_H #define __LINUX_USB_GADGET_H -#ifdef __KERNEL__ - struct usb_ep; /** @@ -848,6 +846,4 @@ extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *, extern void usb_ep_autoconfig_reset(struct usb_gadget *) __devinit; -#endif /* __KERNEL__ */ - #endif /* __LINUX_USB_GADGET_H */ -- GitLab From 11171d1bde45eefa4fed605a5cf6ebe0e3d24395 Mon Sep 17 00:00:00 2001 From: Mirko Bordignon Date: Mon, 10 Mar 2008 11:38:55 +0100 Subject: [PATCH 686/923] USB: new ftdi_sio device id Here is a patch that adds support for the propox jtagcable II dongle (http://www.propox.com/products/t_117.html): their PID was missing, therefore we were not able to have the device recognized though it uses a standard FTDI chip. Signed-off-by: Mirko Bordignon Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 1 + drivers/usb/serial/ftdi_sio.h | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 91dc433dbcf..3abb3c86364 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -359,6 +359,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) }, { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID), diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index e1eb742abcd..6da539ede0e 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -557,6 +557,9 @@ #define TML_VID 0x1B91 /* Vendor ID */ #define TML_USB_SERIAL_PID 0x0064 /* USB - Serial Converter */ +/* Propox devices */ +#define FTDI_PROPOX_JTAGCABLEII_PID 0xD738 + /* Commands */ #define FTDI_SIO_RESET 0 /* Reset the port */ #define FTDI_SIO_MODEM_CTRL 1 /* Set the modem control register */ -- GitLab From e82cc1288fa57857c6af8c57f3d07096d4bcd9d9 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Fri, 7 Mar 2008 13:49:42 -0800 Subject: [PATCH 687/923] USB: fix ehci unlink regressions The recent EHCI driver update to split the IAA watchdog timer out from the other timers made several things work better, but not everything; and it created a couple new issues in bugzilla. Ergo this patch: - Handle a should-be-rare SMP race between the watchdog firing and (very late) IAA interrupts; - Remove a shouldn't-have-been-added WARN_ON() test; - Guard against one observed OOPS; - If this watchdog fires during clean HC shutdown, it should act as a NOP instead of interfering with the shutdown sequence; - Guard against silicon errata hypothesized by some vendors: * IAA status latch broken, but IAAD cleared OK; * IAAD wasn't cleared when IAA status got reported; The WARN_ON is in bugzilla as 10168; the OOPS as 10078; these are both regressions. Signed-off-by: David Brownell Tested-by: Gordon Farquharson Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-hcd.c | 62 +++++++++++++++++++++++++++---------- 1 file changed, 46 insertions(+), 16 deletions(-) diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index b8ad55aff84..46ee7f4c091 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -281,23 +281,44 @@ static void ehci_iaa_watchdog(unsigned long param) { struct ehci_hcd *ehci = (struct ehci_hcd *) param; unsigned long flags; - u32 status, cmd; spin_lock_irqsave (&ehci->lock, flags); - WARN_ON(!ehci->reclaim); - status = ehci_readl(ehci, &ehci->regs->status); - cmd = ehci_readl(ehci, &ehci->regs->command); - ehci_dbg(ehci, "IAA watchdog: status %x cmd %x\n", status, cmd); - - /* lost IAA irqs wedge things badly; seen first with a vt8235 */ - if (ehci->reclaim) { - if (status & STS_IAA) { - ehci_vdbg (ehci, "lost IAA\n"); + /* Lost IAA irqs wedge things badly; seen first with a vt8235. + * So we need this watchdog, but must protect it against both + * (a) SMP races against real IAA firing and retriggering, and + * (b) clean HC shutdown, when IAA watchdog was pending. + */ + if (ehci->reclaim + && !timer_pending(&ehci->iaa_watchdog) + && HC_IS_RUNNING(ehci_to_hcd(ehci)->state)) { + u32 cmd, status; + + /* If we get here, IAA is *REALLY* late. It's barely + * conceivable that the system is so busy that CMD_IAAD + * is still legitimately set, so let's be sure it's + * clear before we read STS_IAA. (The HC should clear + * CMD_IAAD when it sets STS_IAA.) + */ + cmd = ehci_readl(ehci, &ehci->regs->command); + if (cmd & CMD_IAAD) + ehci_writel(ehci, cmd & ~CMD_IAAD, + &ehci->regs->command); + + /* If IAA is set here it either legitimately triggered + * before we cleared IAAD above (but _way_ late, so we'll + * still count it as lost) ... or a silicon erratum: + * - VIA seems to set IAA without triggering the IRQ; + * - IAAD potentially cleared without setting IAA. + */ + status = ehci_readl(ehci, &ehci->regs->status); + if ((status & STS_IAA) || !(cmd & CMD_IAAD)) { COUNT (ehci->stats.lost_iaa); ehci_writel(ehci, STS_IAA, &ehci->regs->status); } - ehci_writel(ehci, cmd & ~CMD_IAAD, &ehci->regs->command); + + ehci_vdbg(ehci, "IAA watchdog: status %x cmd %x\n", + status, cmd); end_unlink_async(ehci); } @@ -631,7 +652,7 @@ static int ehci_run (struct usb_hcd *hcd) static irqreturn_t ehci_irq (struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); - u32 status, pcd_status = 0; + u32 status, pcd_status = 0, cmd; int bh; spin_lock (&ehci->lock); @@ -652,7 +673,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) /* clear (just) interrupts */ ehci_writel(ehci, status, &ehci->regs->status); - ehci_readl(ehci, &ehci->regs->command); /* unblock posted write */ + cmd = ehci_readl(ehci, &ehci->regs->command); bh = 0; #ifdef EHCI_VERBOSE_DEBUG @@ -673,8 +694,17 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) /* complete the unlinking of some qh [4.15.2.3] */ if (status & STS_IAA) { - COUNT (ehci->stats.reclaim); - end_unlink_async(ehci); + /* guard against (alleged) silicon errata */ + if (cmd & CMD_IAAD) { + ehci_writel(ehci, cmd & ~CMD_IAAD, + &ehci->regs->command); + ehci_dbg(ehci, "IAA with IAAD still set?\n"); + } + if (ehci->reclaim) { + COUNT(ehci->stats.reclaim); + end_unlink_async(ehci); + } else + ehci_dbg(ehci, "IAA with nothing to reclaim?\n"); } /* remote wakeup [4.3.1] */ @@ -781,7 +811,7 @@ static int ehci_urb_enqueue ( static void unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh) { /* failfast */ - if (!HC_IS_RUNNING(ehci_to_hcd(ehci)->state)) + if (!HC_IS_RUNNING(ehci_to_hcd(ehci)->state) && ehci->reclaim) end_unlink_async(ehci); /* if it's not linked then there's nothing to do */ -- GitLab From 15c4a4e2f1337a442fe6c66266a8829afc8ff96f Mon Sep 17 00:00:00 2001 From: "Robert P. J. Day" Date: Fri, 7 Mar 2008 15:08:17 -0500 Subject: [PATCH 688/923] USB:Update mailing list information in documentation Signed-off-by: Robert P. J. Day Signed-off-by: Greg Kroah-Hartman --- Documentation/usb/usb-help.txt | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/Documentation/usb/usb-help.txt b/Documentation/usb/usb-help.txt index a7408593829..4273ca2b86b 100644 --- a/Documentation/usb/usb-help.txt +++ b/Documentation/usb/usb-help.txt @@ -1,5 +1,5 @@ usb-help.txt -2000-July-12 +2008-Mar-7 For USB help other than the readme files that are located in Documentation/usb/*, see the following: @@ -10,9 +10,7 @@ Linux-USB project: http://www.linux-usb.org Linux USB Guide: http://linux-usb.sourceforge.net Linux-USB device overview (working devices and drivers): http://www.qbik.ch/usb/devices/ - -The Linux-USB mailing lists are: - linux-usb-users@lists.sourceforge.net for general user help - linux-usb-devel@lists.sourceforge.net for developer discussions + +The Linux-USB mailing list is at linux-usb@vger.kernel.org ### -- GitLab From 4f4c9430cf5ee1ca3567bc88faf8b4c18ed0bd13 Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Mon, 10 Mar 2008 16:42:40 -0700 Subject: [PATCH 689/923] [NETFILTER]: xt_time: fix failure to match on Sundays From: Andrew Schulman xt_time_match() in net/netfilter/xt_time.c in kernel 2.6.24 never matches on Sundays. On my host I have a rule like iptables -A OUTPUT -m time --weekdays Sun -j REJECT and it never matches. The problem is in localtime_2(), which uses r->weekday = (4 + r->dse) % 7; to map the epoch day onto a weekday in {0,...,6}. In particular this gives 0 for Sundays. But 0 has to be wrong; a weekday of 0 can never match. xt_time_match() has if (!(info->weekdays_match & (1 << current_time.weekday))) return false; and when current_time.weekday = 0, the result of the & is always zero, even when info->weekdays_match = XT_TIME_ALL_WEEKDAYS = 0xFE. Signed-off-by: Jan Engelhardt Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/xt_time.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/netfilter/xt_time.c b/net/netfilter/xt_time.c index e9a8794bc3a..9fa2e082470 100644 --- a/net/netfilter/xt_time.c +++ b/net/netfilter/xt_time.c @@ -95,8 +95,11 @@ static inline void localtime_2(struct xtm *r, time_t time) */ r->dse = time / 86400; - /* 1970-01-01 (w=0) was a Thursday (4). */ - r->weekday = (4 + r->dse) % 7; + /* + * 1970-01-01 (w=0) was a Thursday (4). + * -1 and +1 map Sunday properly onto 7. + */ + r->weekday = (4 + r->dse - 1) % 7 + 1; } static void localtime_3(struct xtm *r, time_t time) -- GitLab From 3d89e9cf3690b4645ce73b86c219c8188f8fa50a Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Mon, 10 Mar 2008 16:43:10 -0700 Subject: [PATCH 690/923] [NETFILTER]: nf_conntrack: add \n to "expectation table full" message Signed-off-by: Alexey Dobriyan Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nf_conntrack_expect.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c index e06bf0028bb..684ec9c1ad3 100644 --- a/net/netfilter/nf_conntrack_expect.c +++ b/net/netfilter/nf_conntrack_expect.c @@ -381,7 +381,7 @@ int nf_ct_expect_related(struct nf_conntrack_expect *expect) if (nf_ct_expect_count >= nf_ct_expect_max) { if (net_ratelimit()) printk(KERN_WARNING - "nf_conntrack: expectation table full"); + "nf_conntrack: expectation table full\n"); ret = -EMFILE; goto out; } -- GitLab From 019f692ea719a2da17606511d2648b8cc1762268 Mon Sep 17 00:00:00 2001 From: Pekka Enberg Date: Mon, 10 Mar 2008 16:43:41 -0700 Subject: [PATCH 691/923] [NETFILTER]: nf_conntrack: replace horrible hack with ksize() There's a horrible slab abuse in net/netfilter/nf_conntrack_extend.c that can be replaced with a call to ksize(). Cc: Christoph Lameter Signed-off-by: Pekka Enberg Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/net/netfilter/nf_conntrack_extend.h | 1 - net/netfilter/nf_conntrack_extend.c | 19 +++---------------- 2 files changed, 3 insertions(+), 17 deletions(-) diff --git a/include/net/netfilter/nf_conntrack_extend.h b/include/net/netfilter/nf_conntrack_extend.h index 49aac6323fb..f736e842977 100644 --- a/include/net/netfilter/nf_conntrack_extend.h +++ b/include/net/netfilter/nf_conntrack_extend.h @@ -17,7 +17,6 @@ enum nf_ct_ext_id struct nf_ct_ext { u8 offset[NF_CT_EXT_NUM]; u8 len; - u8 real_len; char data[0]; }; diff --git a/net/netfilter/nf_conntrack_extend.c b/net/netfilter/nf_conntrack_extend.c index 8b9be1e978c..2bd9963b5b3 100644 --- a/net/netfilter/nf_conntrack_extend.c +++ b/net/netfilter/nf_conntrack_extend.c @@ -19,14 +19,6 @@ static struct nf_ct_ext_type *nf_ct_ext_types[NF_CT_EXT_NUM]; static DEFINE_MUTEX(nf_ct_ext_type_mutex); -/* Horrible trick to figure out smallest amount worth kmallocing. */ -#define CACHE(x) (x) + 0 * -enum { - NF_CT_EXT_MIN_SIZE = -#include - 1 }; -#undef CACHE - void __nf_ct_ext_destroy(struct nf_conn *ct) { unsigned int i; @@ -53,7 +45,7 @@ EXPORT_SYMBOL(__nf_ct_ext_destroy); static void * nf_ct_ext_create(struct nf_ct_ext **ext, enum nf_ct_ext_id id, gfp_t gfp) { - unsigned int off, len, real_len; + unsigned int off, len; struct nf_ct_ext_type *t; rcu_read_lock(); @@ -61,16 +53,14 @@ nf_ct_ext_create(struct nf_ct_ext **ext, enum nf_ct_ext_id id, gfp_t gfp) BUG_ON(t == NULL); off = ALIGN(sizeof(struct nf_ct_ext), t->align); len = off + t->len; - real_len = t->alloc_size; rcu_read_unlock(); - *ext = kzalloc(real_len, gfp); + *ext = kzalloc(t->alloc_size, gfp); if (!*ext) return NULL; (*ext)->offset[id] = off; (*ext)->len = len; - (*ext)->real_len = real_len; return (void *)(*ext) + off; } @@ -95,7 +85,7 @@ void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp) newlen = newoff + t->len; rcu_read_unlock(); - if (newlen >= ct->ext->real_len) { + if (newlen >= ksize(ct->ext)) { new = kmalloc(newlen, gfp); if (!new) return NULL; @@ -114,7 +104,6 @@ void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp) rcu_read_unlock(); } kfree(ct->ext); - new->real_len = newlen; ct->ext = new; } @@ -156,8 +145,6 @@ static void update_alloc_size(struct nf_ct_ext_type *type) t1->alloc_size = ALIGN(t1->alloc_size, t2->align) + t2->len; } - if (t1->alloc_size < NF_CT_EXT_MIN_SIZE) - t1->alloc_size = NF_CT_EXT_MIN_SIZE; } } -- GitLab From b7047a1c886386b10a103b4fea26678db8b57832 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Mon, 10 Mar 2008 16:44:13 -0700 Subject: [PATCH 692/923] [NETFILTER]: nfnetlink_log: fix EPERM when binding/unbinding and instance 0 exists When binding or unbinding to an address family, the res_id is usually set to zero. When logging instance 0 already exists and is owned by a different process, this makes nfunl_recv_config return -EPERM without performing the bind operation. Since no operation on the foreign logging instance itself was requested, this is incorrect. Move bind/unbind commands before the queue instance permissions checks. Also remove an incorrect comment. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nfnetlink_log.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index c6802c0d6ed..bf3f19b21fe 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -702,20 +702,30 @@ nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb, struct nfgenmsg *nfmsg = NLMSG_DATA(nlh); u_int16_t group_num = ntohs(nfmsg->res_id); struct nfulnl_instance *inst; + struct nfulnl_msg_config_cmd *cmd = NULL; int ret = 0; + if (nfula[NFULA_CFG_CMD]) { + u_int8_t pf = nfmsg->nfgen_family; + cmd = nla_data(nfula[NFULA_CFG_CMD]); + + /* Commands without queue context */ + switch (cmd->command) { + case NFULNL_CFG_CMD_PF_BIND: + return nf_log_register(pf, &nfulnl_logger); + case NFULNL_CFG_CMD_PF_UNBIND: + nf_log_unregister_pf(pf); + return 0; + } + } + inst = instance_lookup_get(group_num); if (inst && inst->peer_pid != NETLINK_CB(skb).pid) { ret = -EPERM; goto out_put; } - if (nfula[NFULA_CFG_CMD]) { - u_int8_t pf = nfmsg->nfgen_family; - struct nfulnl_msg_config_cmd *cmd; - - cmd = nla_data(nfula[NFULA_CFG_CMD]); - + if (cmd != NULL) { switch (cmd->command) { case NFULNL_CFG_CMD_BIND: if (inst) { @@ -738,14 +748,6 @@ nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb, instance_destroy(inst); goto out; - case NFULNL_CFG_CMD_PF_BIND: - ret = nf_log_register(pf, &nfulnl_logger); - break; - case NFULNL_CFG_CMD_PF_UNBIND: - /* This is a bug and a feature. We cannot unregister - * other handlers, like nfnetlink_inst can */ - nf_log_unregister_pf(pf); - break; default: ret = -ENOTSUPP; break; -- GitLab From 914afea84e3e20cdbcd040f8387a0e6ef20ffc97 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Mon, 10 Mar 2008 16:44:36 -0700 Subject: [PATCH 693/923] [NETFILTER]: nfnetlink_queue: fix EPERM when binding/unbinding and instance 0 exists Similar to the nfnetlink_log problem, nfnetlink_queue incorrectly returns -EPERM when binding or unbinding to an address family and queueing instance 0 exists and is owned by a different process. Unlike nfnetlink_log it previously completes the operation, but it is still incorrect. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nfnetlink_queue.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c index c0cc3d3618a..012cb691082 100644 --- a/net/netfilter/nfnetlink_queue.c +++ b/net/netfilter/nfnetlink_queue.c @@ -703,19 +703,12 @@ nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb, /* Commands without queue context - might sleep */ switch (cmd->command) { case NFQNL_CFG_CMD_PF_BIND: - ret = nf_register_queue_handler(ntohs(cmd->pf), - &nfqh); - break; + return nf_register_queue_handler(ntohs(cmd->pf), + &nfqh); case NFQNL_CFG_CMD_PF_UNBIND: - ret = nf_unregister_queue_handler(ntohs(cmd->pf), - &nfqh); - break; - default: - break; + return nf_unregister_queue_handler(ntohs(cmd->pf), + &nfqh); } - - if (ret < 0) - return ret; } rcu_read_lock(); -- GitLab From 94be1a3f365e2b9f2615575d7fef16a0bad106a3 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Mon, 10 Mar 2008 16:45:05 -0700 Subject: [PATCH 694/923] [NETFILTER]: nf_queue: don't return error when unregistering a non-existant handler Commit ce7663d84: [NETFILTER]: nfnetlink_queue: don't unregister handler of other subsystem changed nf_unregister_queue_handler to return an error when attempting to unregister a queue handler that is not identical to the one passed in. This is correct in case we really do have a different queue handler already registered, but some existing userspace code always does an unbind before bind and aborts if that fails, so try to be nice and return success in that case. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nf_queue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c index bfc2928c191..ddc80ea114c 100644 --- a/net/netfilter/nf_queue.c +++ b/net/netfilter/nf_queue.c @@ -51,7 +51,7 @@ int nf_unregister_queue_handler(int pf, const struct nf_queue_handler *qh) return -EINVAL; mutex_lock(&queue_handler_mutex); - if (queue_handler[pf] != qh) { + if (queue_handler[pf] && queue_handler[pf] != qh) { mutex_unlock(&queue_handler_mutex); return -EINVAL; } -- GitLab From 7f5e4e8d94b6013f93716bc42a1296f95d1059dc Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 5 Mar 2008 18:24:52 -0800 Subject: [PATCH 695/923] ata: replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: Jeff Garzik --- drivers/ata/libata-acpi.c | 8 ++++---- drivers/ata/libata-core.c | 14 +++++++------- drivers/ata/pata_pdc2027x.c | 2 +- 3 files changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 9e8ec19260a..0770cb7391a 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -382,7 +382,7 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf) if (ata_msg_probe(ap)) ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER: port#: %d\n", - __FUNCTION__, ap->port_no); + __func__, ap->port_no); /* _GTF has no input parameters */ status = acpi_evaluate_object(dev->acpi_handle, "_GTF", NULL, &output); @@ -402,7 +402,7 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf) if (ata_msg_probe(ap)) ata_dev_printk(dev, KERN_DEBUG, "%s: Run _GTF: " "length or ptr is NULL (0x%llx, 0x%p)\n", - __FUNCTION__, + __func__, (unsigned long long)output.length, output.pointer); rc = -EINVAL; @@ -432,7 +432,7 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf) if (ata_msg_probe(ap)) ata_dev_printk(dev, KERN_DEBUG, "%s: returning gtf=%p, gtf_count=%d\n", - __FUNCTION__, *gtf, rc); + __func__, *gtf, rc); } return rc; @@ -725,7 +725,7 @@ static int ata_acpi_push_id(struct ata_device *dev) if (ata_msg_probe(ap)) ata_dev_printk(dev, KERN_DEBUG, "%s: ix = %d, port#: %d\n", - __FUNCTION__, dev->devno, ap->port_no); + __func__, dev->devno, ap->port_no); /* Give the drive Identify data to the drive via the _SDD method */ /* _SDD: set up input parameters */ diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 4fbcce758b0..5310513b757 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1719,7 +1719,7 @@ void ata_port_flush_task(struct ata_port *ap) cancel_rearming_delayed_work(&ap->port_task); if (ata_msg_ctl(ap)) - ata_port_printk(ap, KERN_DEBUG, "%s: EXIT\n", __FUNCTION__); + ata_port_printk(ap, KERN_DEBUG, "%s: EXIT\n", __func__); } static void ata_qc_complete_internal(struct ata_queued_cmd *qc) @@ -2056,7 +2056,7 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, int rc; if (ata_msg_ctl(ap)) - ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __FUNCTION__); + ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __func__); ata_dev_select(ap, dev->devno, 1, 1); /* select device 0/1 */ retry: @@ -2253,12 +2253,12 @@ int ata_dev_configure(struct ata_device *dev) if (!ata_dev_enabled(dev) && ata_msg_info(ap)) { ata_dev_printk(dev, KERN_INFO, "%s: ENTER/EXIT -- nodev\n", - __FUNCTION__); + __func__); return 0; } if (ata_msg_probe(ap)) - ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __FUNCTION__); + ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __func__); /* set horkage */ dev->horkage |= ata_dev_blacklisted(dev); @@ -2279,7 +2279,7 @@ int ata_dev_configure(struct ata_device *dev) ata_dev_printk(dev, KERN_DEBUG, "%s: cfg 49:%04x 82:%04x 83:%04x 84:%04x " "85:%04x 86:%04x 87:%04x 88:%04x\n", - __FUNCTION__, + __func__, id[49], id[82], id[83], id[84], id[85], id[86], id[87], id[88]); @@ -2511,13 +2511,13 @@ int ata_dev_configure(struct ata_device *dev) if (ata_msg_probe(ap)) ata_dev_printk(dev, KERN_DEBUG, "%s: EXIT, drv_stat = 0x%x\n", - __FUNCTION__, ata_chk_status(ap)); + __func__, ata_chk_status(ap)); return 0; err_out_nosup: if (ata_msg_probe(ap)) ata_dev_printk(dev, KERN_DEBUG, - "%s: EXIT, err\n", __FUNCTION__); + "%s: EXIT, err\n", __func__); return rc; } diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c index 028af5dbeed..511c89b9bae 100644 --- a/drivers/ata/pata_pdc2027x.c +++ b/drivers/ata/pata_pdc2027x.c @@ -39,7 +39,7 @@ #undef PDC_DEBUG #ifdef PDC_DEBUG -#define PDPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args) +#define PDPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) #else #define PDPRINTK(fmt, args...) #endif -- GitLab From eec59f76e9010e22d5736cf1907af4a92067522e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 6 Mar 2008 13:09:34 +0900 Subject: [PATCH 696/923] libata: allow LLDs w/o any reset method Some old SFF controllers don't have any way to reset the channel. Currently, this isn't supported and libata EH causes an oops. Allow LLDs w/o any reset method and just assume ATA class in such cases. Signed-off-by: Tejun Heo Signed-off-by: Ingo Molnar Signed-off-by: Jeff Garzik --- drivers/ata/libata-eh.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 698ce2cea52..681252fd814 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2150,6 +2150,15 @@ int ata_eh_reset(struct ata_link *link, int classify, ap->ops->set_piomode(ap, dev); } + if (!softreset && !hardreset) { + if (verbose) + ata_link_printk(link, KERN_INFO, "no reset method " + "available, skipping reset\n"); + if (!(lflags & ATA_LFLAG_ASSUME_CLASS)) + lflags |= ATA_LFLAG_ASSUME_ATA; + goto done; + } + /* Determine which reset to use and record in ehc->i.action. * prereset() may examine and modify it. */ @@ -2254,6 +2263,7 @@ int ata_eh_reset(struct ata_link *link, int classify, lflags |= ATA_LFLAG_ASSUME_ATA; } + done: ata_link_for_each_dev(dev, link) { /* After the reset, the device state is PIO 0 and the * controller state is undefined. Reset also wakes up -- GitLab From f659f0e4480bb82e6dcf3db8ba1e8485444084e5 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 6 Mar 2008 13:12:54 +0900 Subject: [PATCH 697/923] libata-sff: handle controllers w/o ctl register SFF incorrectly assumed that ctl register is available for all controllers while some old SFF controllers don't have ctl register. Make SFF handle controllers w/o ctl register by conditionalizing ctl register access and softreset method. Signed-off-by: Tejun Heo Signed-off-by: Ingo Molnar Signed-off-by: Jeff Garzik --- drivers/ata/libata-sff.c | 36 ++++++++++++++++++++++-------------- 1 file changed, 22 insertions(+), 14 deletions(-) diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 60cd4b17976..20dc572fb45 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -56,7 +56,8 @@ u8 ata_irq_on(struct ata_port *ap) ap->ctl &= ~ATA_NIEN; ap->last_ctl = ap->ctl; - iowrite8(ap->ctl, ioaddr->ctl_addr); + if (ioaddr->ctl_addr) + iowrite8(ap->ctl, ioaddr->ctl_addr); tmp = ata_wait_idle(ap); ap->ops->irq_clear(ap); @@ -81,12 +82,14 @@ void ata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR; if (tf->ctl != ap->last_ctl) { - iowrite8(tf->ctl, ioaddr->ctl_addr); + if (ioaddr->ctl_addr) + iowrite8(tf->ctl, ioaddr->ctl_addr); ap->last_ctl = tf->ctl; ata_wait_idle(ap); } if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) { + WARN_ON(!ioaddr->ctl_addr); iowrite8(tf->hob_feature, ioaddr->feature_addr); iowrite8(tf->hob_nsect, ioaddr->nsect_addr); iowrite8(tf->hob_lbal, ioaddr->lbal_addr); @@ -167,14 +170,17 @@ void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf) tf->device = ioread8(ioaddr->device_addr); if (tf->flags & ATA_TFLAG_LBA48) { - iowrite8(tf->ctl | ATA_HOB, ioaddr->ctl_addr); - tf->hob_feature = ioread8(ioaddr->error_addr); - tf->hob_nsect = ioread8(ioaddr->nsect_addr); - tf->hob_lbal = ioread8(ioaddr->lbal_addr); - tf->hob_lbam = ioread8(ioaddr->lbam_addr); - tf->hob_lbah = ioread8(ioaddr->lbah_addr); - iowrite8(tf->ctl, ioaddr->ctl_addr); - ap->last_ctl = tf->ctl; + if (likely(ioaddr->ctl_addr)) { + iowrite8(tf->ctl | ATA_HOB, ioaddr->ctl_addr); + tf->hob_feature = ioread8(ioaddr->error_addr); + tf->hob_nsect = ioread8(ioaddr->nsect_addr); + tf->hob_lbal = ioread8(ioaddr->lbal_addr); + tf->hob_lbam = ioread8(ioaddr->lbam_addr); + tf->hob_lbah = ioread8(ioaddr->lbah_addr); + iowrite8(tf->ctl, ioaddr->ctl_addr); + ap->last_ctl = tf->ctl; + } else + WARN_ON(1); } } @@ -352,7 +358,8 @@ void ata_bmdma_freeze(struct ata_port *ap) ap->ctl |= ATA_NIEN; ap->last_ctl = ap->ctl; - iowrite8(ap->ctl, ioaddr->ctl_addr); + if (ioaddr->ctl_addr) + iowrite8(ap->ctl, ioaddr->ctl_addr); /* Under certain circumstances, some controllers raise IRQ on * ATA_NIEN manipulation. Also, many controllers fail to mask @@ -459,13 +466,14 @@ void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset, */ void ata_bmdma_error_handler(struct ata_port *ap) { - ata_reset_fn_t hardreset; + ata_reset_fn_t softreset = NULL, hardreset = NULL; - hardreset = NULL; + if (ap->ioaddr.ctl_addr) + softreset = ata_std_softreset; if (sata_scr_valid(&ap->link)) hardreset = sata_std_hardreset; - ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset, hardreset, + ata_bmdma_drive_eh(ap, ata_std_prereset, softreset, hardreset, ata_std_postreset); } -- GitLab From 70d562cf7853ea1bb53c1007075c5df958f11c90 Mon Sep 17 00:00:00 2001 From: peerchen Date: Thu, 6 Mar 2008 21:22:41 +0800 Subject: [PATCH 698/923] ahci: add the Device IDs for nvidia MCP7B AHCI Signed-off-by: Peer Chen Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 8a49835bd0f..1d60ef02151 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -567,6 +567,18 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci }, /* MCP79 */ + { PCI_VDEVICE(NVIDIA, 0x0bc8), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bc9), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bca), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bcb), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bcc), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bcd), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bce), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bcf), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bd0), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bd1), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bd2), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bd3), board_ahci }, /* MCP7B */ /* SiS */ { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */ -- GitLab From 7afb42226a8eaa9ae3f6b9917ffb16902358e749 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sun, 9 Mar 2008 20:21:53 +0900 Subject: [PATCH 699/923] libata: don't allow sysfs read access to force param Buffer for force param is deallocated after initialization, so trying to read it via sysfs results in oops. Don't allow read access to the param node. Spotted by Eric Sesterhenn. Signed-off-by: Tejun Heo Cc: Eric Sesterhenn Signed-off-by: Jeff Garzik --- drivers/ata/libata-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 5310513b757..4bbe31f98ef 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -106,7 +106,8 @@ static struct ata_force_ent *ata_force_tbl; static int ata_force_tbl_size; static char ata_force_param_buf[PAGE_SIZE] __initdata; -module_param_string(force, ata_force_param_buf, sizeof(ata_force_param_buf), 0444); +/* param_buf is thrown away after initialization, disallow read */ +module_param_string(force, ata_force_param_buf, sizeof(ata_force_param_buf), 0); MODULE_PARM_DESC(force, "Force ATA configurations including cable type, link speed and transfer mode (see Documentation/kernel-parameters.txt for details)"); int atapi_enabled = 1; -- GitLab From 258cd8464b618d5ec3b836f02cce05e3faf226b4 Mon Sep 17 00:00:00 2001 From: Roel Kluin <12o3l@tiscali.nl> Date: Sun, 9 Mar 2008 21:42:40 +0100 Subject: [PATCH 700/923] ahci: logical-bitwise and confusion in ahci_save_initial_config() logical-bitwise & confusion Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 1d60ef02151..6978469eb16 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -684,7 +684,7 @@ static void ahci_save_initial_config(struct pci_dev *pdev, cap &= ~HOST_CAP_NCQ; } - if ((cap && HOST_CAP_PMP) && (hpriv->flags & AHCI_HFLAG_NO_PMP)) { + if ((cap & HOST_CAP_PMP) && (hpriv->flags & AHCI_HFLAG_NO_PMP)) { dev_printk(KERN_INFO, &pdev->dev, "controller can't do PMP, turning off CAP_PMP\n"); cap &= ~HOST_CAP_PMP; -- GitLab From 3db691daa4f6c4b899e144ea54a65738402c94e3 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 6 Mar 2008 12:25:21 +0100 Subject: [PATCH 701/923] [libata] Add support for the RB500 PATA CompactFlash Signed-off-by: Jeff Garzik --- drivers/ata/Kconfig | 9 ++ drivers/ata/Makefile | 1 + drivers/ata/pata_rb500_cf.c | 314 ++++++++++++++++++++++++++++++++++++ 3 files changed, 324 insertions(+) create mode 100644 drivers/ata/pata_rb500_cf.c diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index ba8f7f4dfa1..e469647330d 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -538,6 +538,15 @@ config PATA_RADISYS If unsure, say N. +config PATA_RB500 + tristate "RouterBoard 500 PATA CompactFlash support" + depends on MIKROTIK_RB500 + help + This option enables support for the RouterBoard 500 + PATA CompactFlash controller. + + If unsure, say N. + config PATA_RZ1000 tristate "PC Tech RZ1000 PATA support" depends on PCI diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index 701651e37c8..0511e6f0bb5 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -55,6 +55,7 @@ obj-$(CONFIG_PATA_PDC2027X) += pata_pdc2027x.o obj-$(CONFIG_PATA_PDC_OLD) += pata_pdc202xx_old.o obj-$(CONFIG_PATA_QDI) += pata_qdi.o obj-$(CONFIG_PATA_RADISYS) += pata_radisys.o +obj-$(CONFIG_PATA_RB500) += pata_rb500_cf.o obj-$(CONFIG_PATA_RZ1000) += pata_rz1000.o obj-$(CONFIG_PATA_SC1200) += pata_sc1200.o obj-$(CONFIG_PATA_SERVERWORKS) += pata_serverworks.o diff --git a/drivers/ata/pata_rb500_cf.c b/drivers/ata/pata_rb500_cf.c new file mode 100644 index 00000000000..4ce9b03fe6c --- /dev/null +++ b/drivers/ata/pata_rb500_cf.c @@ -0,0 +1,314 @@ +/* + * A low-level PATA driver to handle a Compact Flash connected on the + * Mikrotik's RouterBoard 532 board. + * + * Copyright (C) 2007 Gabor Juhos + * Copyright (C) 2008 Florian Fainelli + * + * This file was based on: drivers/ata/pata_ixp4xx_cf.c + * Copyright (C) 2006-07 Tower Technologies + * Author: Alessandro Zummo + * + * Also was based on the driver for Linux 2.4.xx published by Mikrotik for + * their RouterBoard 1xx and 5xx series devices. The original Mikrotik code + * seems not to have a license. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include + +#include +#include +#include + +#include +#include + +#include + +#define DRV_NAME "pata-rb500-cf" +#define DRV_VERSION "0.1.0" +#define DRV_DESC "PATA driver for RouterBOARD 532 Compact Flash" + +#define RB500_CF_MAXPORTS 1 +#define RB500_CF_IO_DELAY 400 + +#define RB500_CF_REG_CMD 0x0800 +#define RB500_CF_REG_CTRL 0x080E +#define RB500_CF_REG_DATA 0x0C00 + +struct rb500_cf_info { + void __iomem *iobase; + unsigned int gpio_line; + int frozen; + unsigned int irq; +}; + +/* ------------------------------------------------------------------------ */ + +static inline void rb500_pata_finish_io(struct ata_port *ap) +{ + struct ata_host *ah = ap->host; + struct rb500_cf_info *info = ah->private_data; + + ata_altstatus(ap); + ndelay(RB500_CF_IO_DELAY); + + set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH); +} + +static void rb500_pata_exec_command(struct ata_port *ap, + const struct ata_taskfile *tf) +{ + writeb(tf->command, ap->ioaddr.command_addr); + rb500_pata_finish_io(ap); +} + +static void rb500_pata_data_xfer(struct ata_device *adev, unsigned char *buf, + unsigned int buflen, int write_data) +{ + struct ata_port *ap = adev->link->ap; + void __iomem *ioaddr = ap->ioaddr.data_addr; + + if (write_data) { + for (; buflen > 0; buflen--, buf++) + writeb(*buf, ioaddr); + } else { + for (; buflen > 0; buflen--, buf++) + *buf = readb(ioaddr); + } + + rb500_pata_finish_io(adev->link->ap); +} + +static void rb500_pata_freeze(struct ata_port *ap) +{ + struct rb500_cf_info *info = ap->host->private_data; + + info->frozen = 1; +} + +static void rb500_pata_thaw(struct ata_port *ap) +{ + struct rb500_cf_info *info = ap->host->private_data; + + info->frozen = 0; +} + +static irqreturn_t rb500_pata_irq_handler(int irq, void *dev_instance) +{ + struct ata_host *ah = dev_instance; + struct rb500_cf_info *info = ah->private_data; + + if (gpio_get_value(info->gpio_line)) { + set_irq_type(info->irq, IRQ_TYPE_LEVEL_LOW); + if (!info->frozen) + ata_interrupt(info->irq, dev_instance); + } else { + set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH); + } + + return IRQ_HANDLED; +} + +static void rb500_pata_irq_clear(struct ata_port *ap) +{ +} + +static int rb500_pata_port_start(struct ata_port *ap) +{ + return 0; +} + +static struct ata_port_operations rb500_pata_port_ops = { + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + + .exec_command = rb500_pata_exec_command, + .check_status = ata_check_status, + .dev_select = ata_std_dev_select, + + .data_xfer = rb500_pata_data_xfer, + + .qc_prep = ata_qc_prep, + .qc_issue = ata_qc_issue_prot, + + .freeze = rb500_pata_freeze, + .thaw = rb500_pata_thaw, + .error_handler = ata_bmdma_error_handler, + + .irq_handler = rb500_pata_irq_handler, + .irq_clear = rb500_pata_irq_clear, + .irq_on = ata_irq_on, + + .port_start = rb500_pata_port_start, +}; + +/* ------------------------------------------------------------------------ */ + +static struct scsi_host_template rb500_pata_sht = { + .module = THIS_MODULE, + .name = DRV_NAME, + .ioctl = ata_scsi_ioctl, + .queuecommand = ata_scsi_queuecmd, + .slave_configure = ata_scsi_slave_config, + .slave_destroy = ata_scsi_slave_destroy, + .bios_param = ata_std_bios_param, + .proc_name = DRV_NAME, + + .can_queue = ATA_DEF_QUEUE, + .this_id = ATA_SHT_THIS_ID, + .sg_tablesize = LIBATA_MAX_PRD, + .dma_boundary = ATA_DMA_BOUNDARY, + .cmd_per_lun = ATA_SHT_CMD_PER_LUN, + .emulated = ATA_SHT_EMULATED, + .use_clustering = ATA_SHT_USE_CLUSTERING, +}; + +/* ------------------------------------------------------------------------ */ + +static void rb500_pata_setup_ports(struct ata_host *ah) +{ + struct rb500_cf_info *info = ah->private_data; + struct ata_port *ap; + + ap = ah->ports[0]; + + ap->ops = &rb500_pata_port_ops; + ap->pio_mask = 0x1f; /* PIO4 */ + ap->flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO; + + ap->ioaddr.cmd_addr = info->iobase + RB500_CF_REG_CMD; + ap->ioaddr.ctl_addr = info->iobase + RB500_CF_REG_CTRL; + ap->ioaddr.altstatus_addr = info->iobase + RB500_CF_REG_CTRL; + + ata_std_ports(&ap->ioaddr); + + ap->ioaddr.data_addr = info->iobase + RB500_CF_REG_DATA; +} + +static __devinit int rb500_pata_driver_probe(struct platform_device *pdev) +{ + unsigned int irq; + int gpio; + struct resource *res; + struct ata_host *ah; + struct rb500_cf_info *info; + int ret; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "no IOMEM resource found\n"); + return -EINVAL; + } + + irq = platform_get_irq(pdev, 0); + if (irq <= 0) { + dev_err(&pdev->dev, "no IRQ resource found\n"); + return -ENOENT; + } + + gpio = irq_to_gpio(irq); + if (gpio < 0) { + dev_err(&pdev->dev, "no GPIO found for irq%d\n", irq); + return -ENOENT; + } + + ret = gpio_request(gpio, DRV_NAME); + if (ret) { + dev_err(&pdev->dev, "GPIO request failed\n"); + return ret; + } + + /* allocate host */ + ah = ata_host_alloc(&pdev->dev, RB500_CF_MAXPORTS); + if (!ah) + return -ENOMEM; + + platform_set_drvdata(pdev, ah); + + info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + ah->private_data = info; + info->gpio_line = gpio; + info->irq = irq; + + info->iobase = devm_ioremap_nocache(&pdev->dev, res->start, + res->end - res->start + 1); + if (!info->iobase) + return -ENOMEM; + + ret = gpio_direction_input(gpio); + if (ret) { + dev_err(&pdev->dev, "unable to set GPIO direction, err=%d\n", + ret); + goto err_free_gpio; + } + + rb500_pata_setup_ports(ah); + + ret = ata_host_activate(ah, irq, rb500_pata_irq_handler, + IRQF_TRIGGER_LOW, &rb500_pata_sht); + if (ret) + goto err_free_gpio; + + return 0; + +err_free_gpio: + gpio_free(gpio); + + return ret; +} + +static __devexit int rb500_pata_driver_remove(struct platform_device *pdev) +{ + struct ata_host *ah = platform_get_drvdata(pdev); + struct rb500_cf_info *info = ah->private_data; + + ata_host_detach(ah); + gpio_free(info->gpio_line); + + return 0; +} + +static struct platform_driver rb500_pata_platform_driver = { + .probe = rb500_pata_driver_probe, + .remove = __devexit_p(rb500_pata_driver_remove), + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, +}; + +/* ------------------------------------------------------------------------ */ + +#define DRV_INFO DRV_DESC " version " DRV_VERSION + +static int __init rb500_pata_module_init(void) +{ + printk(KERN_INFO DRV_INFO "\n"); + + return platform_driver_register(&rb500_pata_platform_driver); +} + +static void __exit rb500_pata_module_exit(void) +{ + platform_driver_unregister(&rb500_pata_platform_driver); +} + +MODULE_AUTHOR("Gabor Juhos "); +MODULE_AUTHOR("Florian Fainelli "); +MODULE_DESCRIPTION(DRV_DESC); +MODULE_VERSION(DRV_VERSION); +MODULE_LICENSE("GPL"); + +module_init(rb500_pata_module_init); +module_exit(rb500_pata_module_exit); -- GitLab From 9f9351bbe34a9b12966b1fb6f7c21cfe128340c1 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 10 Mar 2008 11:43:34 -0700 Subject: [PATCH 702/923] rename DECLARE_PCI_DEVICE_TABLE to DEFINE_PCI_DEVICE_TABLE This macro is used to define tables, not to declare them. Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/pci.txt | 4 ++-- include/linux/pci.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/pci.txt b/Documentation/pci.txt index bb7bd27d468..d2c2e6e2b22 100644 --- a/Documentation/pci.txt +++ b/Documentation/pci.txt @@ -123,7 +123,7 @@ initialization with a pointer to a structure describing the driver The ID table is an array of struct pci_device_id entries ending with an -all-zero entry; use of the macro DECLARE_PCI_DEVICE_TABLE is the preferred +all-zero entry; use of the macro DEFINE_PCI_DEVICE_TABLE is the preferred method of declaring the table. Each entry consists of: vendor,device Vendor and device ID to match (or PCI_ANY_ID) @@ -193,7 +193,7 @@ Tips on when/where to use the above attributes: o Do not mark the struct pci_driver. o The ID table array should be marked __devinitconst; this is done - automatically if the table is declared with DECLARE_PCI_DEVICE_TABLE(). + automatically if the table is declared with DEFINE_PCI_DEVICE_TABLE(). o The probe() and remove() functions should be marked __devinit and __devexit respectively. All initialization functions diff --git a/include/linux/pci.h b/include/linux/pci.h index f3165e7ac43..38eff194775 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -389,13 +389,13 @@ struct pci_driver { #define to_pci_driver(drv) container_of(drv, struct pci_driver, driver) /** - * DECLARE_PCI_DEVICE_TABLE - macro used to describe a pci device table + * DEFINE_PCI_DEVICE_TABLE - macro used to describe a pci device table * @_table: device table name * * This macro is used to create a struct pci_device_id array (a device table) * in a generic manner. */ -#define DECLARE_PCI_DEVICE_TABLE(_table) \ +#define DEFINE_PCI_DEVICE_TABLE(_table) \ const struct pci_device_id _table[] __devinitconst /** -- GitLab From e84290dc79d30af3e95b38e670f80c0b5046bbf2 Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Mon, 10 Mar 2008 11:43:35 -0700 Subject: [PATCH 703/923] of_serial: fix section mismatch warnings Fix the following section mismatches: WARNING: drivers/built-in.o(.exit.text+0x5a): Section mismatch in reference from the function of_platform_serial_exit() to the variable .devinit.data:of_platform_serial_driver The function __exit of_platform_serial_exit() references a variable __devinitdata of_platform_serial_driver. Signed-off-by: Josh Boyer Signed-off-by: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/serial/of_serial.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c index a64d8582199..c0e50a46105 100644 --- a/drivers/serial/of_serial.c +++ b/drivers/serial/of_serial.c @@ -138,7 +138,7 @@ static struct of_device_id __devinitdata of_platform_serial_table[] = { { /* end of list */ }, }; -static struct of_platform_driver __devinitdata of_platform_serial_driver = { +static struct of_platform_driver of_platform_serial_driver = { .owner = THIS_MODULE, .name = "of_serial", .probe = of_platform_serial_probe, -- GitLab From 3acd9d462062bb332073fde90bf9d118ac5a043d Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Mon, 10 Mar 2008 11:43:36 -0700 Subject: [PATCH 704/923] tridentfb: register should be left in non-locked state Remove locking registers after they are unlocked during switch to/from MMIO mode. This fixes regression on the Blade3D (Trident 9880) caused by the previous patch (probe fixes). Signed-off-by: Krzysztof Helt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/tridentfb.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c index 919ce75db9e..5976a1e4051 100644 --- a/drivers/video/tridentfb.c +++ b/drivers/video/tridentfb.c @@ -566,44 +566,32 @@ static inline void write3CE(int reg, unsigned char val) static void enable_mmio(void) { - unsigned char tmp; - /* Goto New Mode */ outb(0x0B, 0x3C4); inb(0x3C5); /* Unprotect registers */ outb(NewMode1, 0x3C4); - tmp = inb(0x3C5); outb(0x80, 0x3C5); /* Enable MMIO */ outb(PCIReg, 0x3D4); outb(inb(0x3D5) | 0x01, 0x3D5); - - t_outb(NewMode1, 0x3C4); - t_outb(tmp, 0x3C5); } static void disable_mmio(void) { - unsigned char tmp; - /* Goto New Mode */ t_outb(0x0B, 0x3C4); t_inb(0x3C5); /* Unprotect registers */ t_outb(NewMode1, 0x3C4); - tmp = t_inb(0x3C5); t_outb(0x80, 0x3C5); /* Disable MMIO */ t_outb(PCIReg, 0x3D4); t_outb(t_inb(0x3D5) & ~0x01, 0x3D5); - - outb(NewMode1, 0x3C4); - outb(tmp, 0x3C5); } #define crtc_unlock() write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F) -- GitLab From b614ce8b3c697947d75685f0b9f2059307dde715 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Mon, 10 Mar 2008 11:43:37 -0700 Subject: [PATCH 705/923] tridentfb: fix memory size detection Fix memory size multiplier during detection. Signed-off-by: Krzysztof Helt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/tridentfb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c index 5976a1e4051..0a4e07d43d2 100644 --- a/drivers/video/tridentfb.c +++ b/drivers/video/tridentfb.c @@ -745,7 +745,7 @@ static unsigned int __devinit get_memsize(void) switch (tmp) { case 0x01: - k = 512; + k = 512 * Kb; break; case 0x02: k = 6 * Mb; /* XP */ -- GitLab From e1f19995f55294fbb00ea22ba85d7b0d80ba3813 Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:37 -0700 Subject: [PATCH 706/923] memstick: introduce correct definitions in the header Thanks to some input from kind people at JMicron it is now possible to have more correct definitions of protocol structures and bit field semantics. Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/core/memstick.c | 4 +- drivers/memstick/core/mspro_block.c | 16 ++-- drivers/memstick/host/tifm_ms.c | 19 ++-- include/linux/memstick.h | 130 ++++++++++++++++++---------- 4 files changed, 105 insertions(+), 64 deletions(-) diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c index bba467fe4bc..5e0e960df45 100644 --- a/drivers/memstick/core/memstick.c +++ b/drivers/memstick/core/memstick.c @@ -271,7 +271,7 @@ void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc, mrq->data_dir = READ; mrq->sg = *sg; - mrq->io_type = MEMSTICK_IO_SG; + mrq->long_data = 1; if (tpc == MS_TPC_SET_CMD || tpc == MS_TPC_EX_SET_CMD) mrq->need_card_int = 1; @@ -306,7 +306,7 @@ void memstick_init_req(struct memstick_request *mrq, unsigned char tpc, if (mrq->data_dir == WRITE) memcpy(mrq->data, buf, mrq->data_len); - mrq->io_type = MEMSTICK_IO_VAL; + mrq->long_data = 0; if (tpc == MS_TPC_SET_CMD || tpc == MS_TPC_EX_SET_CMD) mrq->need_card_int = 1; diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index 423ad8cf4bb..214211c8ac9 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -629,7 +629,7 @@ static void mspro_block_process_request(struct memstick_dev *card, param.system = msb->system; param.data_count = cpu_to_be16(page_count); param.data_address = cpu_to_be32((uint32_t)t_sec); - param.cmd_param = 0; + param.tpc_param = 0; msb->data_dir = rq_data_dir(req); msb->transfer_cmd = msb->data_dir == READ @@ -761,7 +761,7 @@ static int mspro_block_switch_to_parallel(struct memstick_dev *card) .system = 0, .data_count = 0, .data_address = 0, - .cmd_param = 0 + .tpc_param = 0 }; card->next_request = h_mspro_block_req_init; @@ -773,8 +773,8 @@ static int mspro_block_switch_to_parallel(struct memstick_dev *card) if (card->current_mrq.error) return card->current_mrq.error; - msb->system = 0; - host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PARALLEL); + msb->system = MEMSTICK_SYS_PAR4; + host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4); card->next_request = h_mspro_block_req_init; msb->mrq_handler = h_mspro_block_default; @@ -802,7 +802,7 @@ static int mspro_block_read_attributes(struct memstick_dev *card) .system = msb->system, .data_count = cpu_to_be16(1), .data_address = 0, - .cmd_param = 0 + .tpc_param = 0 }; struct mspro_attribute *attr = NULL; struct mspro_sys_attr *s_attr = NULL; @@ -922,7 +922,7 @@ static int mspro_block_read_attributes(struct memstick_dev *card) param.system = msb->system; param.data_count = cpu_to_be16((rc / msb->page_size) + 1); param.data_address = cpu_to_be32(addr / msb->page_size); - param.cmd_param = 0; + param.tpc_param = 0; sg_init_one(&msb->req_sg[0], buffer, be16_to_cpu(param.data_count) * msb->page_size); @@ -964,7 +964,7 @@ static int mspro_block_init_card(struct memstick_dev *card) struct memstick_host *host = card->host; int rc = 0; - msb->system = 0x80; + msb->system = MEMSTICK_SYS_SERIAL; card->reg_addr.r_offset = offsetof(struct mspro_register, status); card->reg_addr.r_length = sizeof(struct ms_status_register); card->reg_addr.w_offset = offsetof(struct mspro_register, param); @@ -973,7 +973,7 @@ static int mspro_block_init_card(struct memstick_dev *card) if (memstick_set_rw_addr(card)) return -EIO; - if (host->caps & MEMSTICK_CAP_PARALLEL) { + if (host->caps & MEMSTICK_CAP_PAR4) { if (mspro_block_switch_to_parallel(card)) printk(KERN_WARNING "%s: could not switch to " "parallel interface\n", card->dev.bus_id); diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c index 4fb24215bd9..5b5bd61b3a4 100644 --- a/drivers/memstick/host/tifm_ms.c +++ b/drivers/memstick/host/tifm_ms.c @@ -209,7 +209,7 @@ static int tifm_ms_issue_cmd(struct tifm_ms *host) host->cmd_flags = 0; - if (host->req->io_type == MEMSTICK_IO_SG) { + if (host->req->long_data) { if (!host->no_dma) { if (1 != tifm_map_sg(sock, &host->req->sg, 1, host->req->data_dir == READ @@ -248,7 +248,7 @@ static int tifm_ms_issue_cmd(struct tifm_ms *host) cmd_mask = readl(sock->addr + SOCK_MS_SYSTEM); cmd_mask |= TIFM_MS_SYS_DATA | TIFM_MS_SYS_NOT_RDY; writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM); - } else if (host->req->io_type == MEMSTICK_IO_VAL) { + } else { data = host->req->data; data_len = host->req->data_len; @@ -294,8 +294,7 @@ static int tifm_ms_issue_cmd(struct tifm_ms *host) cmd_mask |= TIFM_MS_SYS_NOT_RDY; dev_dbg(&sock->dev, "mask %x\n", cmd_mask); writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM); - } else - BUG(); + } mod_timer(&host->timer, jiffies + host->timeout_jiffies); writel(TIFM_CTRL_LED | readl(sock->addr + SOCK_CONTROL), @@ -319,13 +318,13 @@ static void tifm_ms_complete_cmd(struct tifm_ms *host) int rc; del_timer(&host->timer); - if (host->req->io_type == MEMSTICK_IO_SG) { + if (host->req->long_data) { if (!host->no_dma) tifm_unmap_sg(sock, &host->req->sg, 1, host->req->data_dir == READ ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE); - } else if (host->req->io_type == MEMSTICK_IO_VAL) { + } else { writel(~TIFM_MS_SYS_DATA & readl(sock->addr + SOCK_MS_SYSTEM), sock->addr + SOCK_MS_SYSTEM); @@ -365,7 +364,7 @@ static int tifm_ms_check_status(struct tifm_ms *host) if (!host->req->error) { if (!(host->cmd_flags & CMD_READY)) return 1; - if ((host->req->io_type == MEMSTICK_IO_SG) + if (host->req->long_data && !(host->cmd_flags & FIFO_READY)) return 1; if (host->req->need_card_int @@ -505,7 +504,7 @@ static void tifm_ms_set_param(struct memstick_host *msh, writel((~TIFM_CTRL_FAST_CLK) & readl(sock->addr + SOCK_CONTROL), sock->addr + SOCK_CONTROL); - } else if (value == MEMSTICK_PARALLEL) { + } else if (value == MEMSTICK_PAR4) { host->mode_mask = 0; writel(TIFM_CTRL_FAST_CLK | readl(sock->addr + SOCK_CONTROL), @@ -542,7 +541,7 @@ static int tifm_ms_initialize_host(struct tifm_ms *host) writel(0x0200 | TIFM_MS_SYS_NOT_RDY, sock->addr + SOCK_MS_SYSTEM); writel(0xffffffff, sock->addr + SOCK_MS_STATUS); if (tifm_has_ms_pif(sock)) - msh->caps |= MEMSTICK_CAP_PARALLEL; + msh->caps |= MEMSTICK_CAP_PAR4; return 0; } @@ -601,7 +600,7 @@ static void tifm_ms_remove(struct tifm_dev *sock) writel(TIFM_FIFO_INT_SETALL, sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); writel(TIFM_DMA_RESET, sock->addr + SOCK_DMA_CONTROL); - if ((host->req->io_type == MEMSTICK_IO_SG) && !host->no_dma) + if (host->req->long_data && !host->no_dma) tifm_unmap_sg(sock, &host->req->sg, 1, host->req->data_dir == READ ? PCI_DMA_TODEVICE diff --git a/include/linux/memstick.h b/include/linux/memstick.h index 334d059d679..c104e722de0 100644 --- a/include/linux/memstick.h +++ b/include/linux/memstick.h @@ -22,6 +22,8 @@ struct ms_status_register { unsigned char reserved; unsigned char interrupt; #define MEMSTICK_INT_CMDNAK 0x0001 +#define MEMSTICK_INT_IOREQ 0x0008 +#define MEMSTICK_INT_IOBREQ 0x0010 #define MEMSTICK_INT_BREQ 0x0020 #define MEMSTICK_INT_ERR 0x0040 #define MEMSTICK_INT_CED 0x0080 @@ -47,13 +49,17 @@ struct ms_status_register { struct ms_id_register { unsigned char type; - unsigned char reserved; + unsigned char if_mode; unsigned char category; unsigned char class; } __attribute__((packed)); struct ms_param_register { unsigned char system; +#define MEMSTICK_SYS_ATEN 0xc0 +#define MEMSTICK_SYS_BAMD 0x80 +#define MEMSTICK_SYS_PAM 0x08 + unsigned char block_address_msb; unsigned short block_address; unsigned char cp; @@ -90,16 +96,48 @@ struct ms_register { struct mspro_param_register { unsigned char system; +#define MEMSTICK_SYS_SERIAL 0x80 +#define MEMSTICK_SYS_PAR4 0x00 +#define MEMSTICK_SYS_PAR8 0x40 + + unsigned short data_count; + unsigned int data_address; + unsigned char tpc_param; +} __attribute__((packed)); + +struct mspro_io_info_register { + unsigned char version; + unsigned char io_category; + unsigned char current_req; + unsigned char card_opt_info; + unsigned char rdy_wait_time; +} __attribute__((packed)); + +struct mspro_io_func_register { + unsigned char func_enable; + unsigned char func_select; + unsigned char func_intmask; + unsigned char transfer_mode; +} __attribute__((packed)); + +struct mspro_io_cmd_register { + unsigned short tpc_param; unsigned short data_count; unsigned int data_address; - unsigned char cmd_param; } __attribute__((packed)); struct mspro_register { - struct ms_status_register status; - struct ms_id_register id; - unsigned char reserved[8]; - struct mspro_param_register param; + struct ms_status_register status; + struct ms_id_register id; + unsigned char reserved0[8]; + struct mspro_param_register param; + unsigned char reserved1[8]; + struct mspro_io_info_register io_info; + struct mspro_io_func_register io_func; + unsigned char reserved2[7]; + struct mspro_io_cmd_register io_cmd; + unsigned char io_int; + unsigned char io_int_func; } __attribute__((packed)); struct ms_register_addr { @@ -110,49 +148,55 @@ struct ms_register_addr { } __attribute__((packed)); enum { + MS_TPC_READ_MG_STATUS = 0x01, MS_TPC_READ_LONG_DATA = 0x02, MS_TPC_READ_SHORT_DATA = 0x03, + MS_TPC_READ_MG_DATA = 0x03, MS_TPC_READ_REG = 0x04, - MS_TPC_READ_IO_DATA = 0x05, /* unverified */ + MS_TPC_READ_QUAD_DATA = 0x05, + MS_TPC_READ_IO_DATA = 0x05, MS_TPC_GET_INT = 0x07, MS_TPC_SET_RW_REG_ADRS = 0x08, MS_TPC_EX_SET_CMD = 0x09, - MS_TPC_WRITE_IO_DATA = 0x0a, /* unverified */ + MS_TPC_WRITE_QUAD_DATA = 0x0a, + MS_TPC_WRITE_IO_DATA = 0x0a, MS_TPC_WRITE_REG = 0x0b, MS_TPC_WRITE_SHORT_DATA = 0x0c, + MS_TPC_WRITE_MG_DATA = 0x0c, MS_TPC_WRITE_LONG_DATA = 0x0d, MS_TPC_SET_CMD = 0x0e }; enum { - MS_CMD_BLOCK_END = 0x33, - MS_CMD_RESET = 0x3c, - MS_CMD_BLOCK_WRITE = 0x55, - MS_CMD_SLEEP = 0x5a, - MS_CMD_BLOCK_ERASE = 0x99, - MS_CMD_BLOCK_READ = 0xaa, - MS_CMD_CLEAR_BUF = 0xc3, - MS_CMD_FLASH_STOP = 0xcc, - MSPRO_CMD_FORMAT = 0x10, - MSPRO_CMD_SLEEP = 0x11, - MSPRO_CMD_READ_DATA = 0x20, - MSPRO_CMD_WRITE_DATA = 0x21, - MSPRO_CMD_READ_ATRB = 0x24, - MSPRO_CMD_STOP = 0x25, - MSPRO_CMD_ERASE = 0x26, - MSPRO_CMD_SET_IBA = 0x46, - MSPRO_CMD_SET_IBD = 0x47 -/* - MSPRO_CMD_RESET - MSPRO_CMD_WAKEUP - MSPRO_CMD_IN_IO_DATA - MSPRO_CMD_OUT_IO_DATA - MSPRO_CMD_READ_IO_ATRB - MSPRO_CMD_IN_IO_FIFO - MSPRO_CMD_OUT_IO_FIFO - MSPRO_CMD_IN_IOM - MSPRO_CMD_OUT_IOM -*/ + MS_CMD_BLOCK_END = 0x33, + MS_CMD_RESET = 0x3c, + MS_CMD_BLOCK_WRITE = 0x55, + MS_CMD_SLEEP = 0x5a, + MS_CMD_BLOCK_ERASE = 0x99, + MS_CMD_BLOCK_READ = 0xaa, + MS_CMD_CLEAR_BUF = 0xc3, + MS_CMD_FLASH_STOP = 0xcc, + MS_CMD_LOAD_ID = 0x60, + MS_CMD_CMP_ICV = 0x7f, + MSPRO_CMD_FORMAT = 0x10, + MSPRO_CMD_SLEEP = 0x11, + MSPRO_CMD_WAKEUP = 0x12, + MSPRO_CMD_READ_DATA = 0x20, + MSPRO_CMD_WRITE_DATA = 0x21, + MSPRO_CMD_READ_ATRB = 0x24, + MSPRO_CMD_STOP = 0x25, + MSPRO_CMD_ERASE = 0x26, + MSPRO_CMD_READ_QUAD = 0x27, + MSPRO_CMD_WRITE_QUAD = 0x28, + MSPRO_CMD_SET_IBD = 0x46, + MSPRO_CMD_GET_IBD = 0x47, + MSPRO_CMD_IN_IO_DATA = 0xb0, + MSPRO_CMD_OUT_IO_DATA = 0xb1, + MSPRO_CMD_READ_IO_ATRB = 0xb2, + MSPRO_CMD_IN_IO_FIFO = 0xb3, + MSPRO_CMD_OUT_IO_FIFO = 0xb4, + MSPRO_CMD_IN_IOM = 0xb5, + MSPRO_CMD_OUT_IOM = 0xb6, }; /*** Driver structures and functions ***/ @@ -165,7 +209,8 @@ enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE }; #define MEMSTICK_POWER_ON 1 #define MEMSTICK_SERIAL 0 -#define MEMSTICK_PARALLEL 1 +#define MEMSTICK_PAR4 1 +#define MEMSTICK_PAR8 2 struct memstick_host; struct memstick_driver; @@ -195,11 +240,7 @@ struct memstick_request { unsigned char data_dir:1, need_card_int:1, get_int_reg:1, - io_type:2; -#define MEMSTICK_IO_NONE 0 -#define MEMSTICK_IO_VAL 1 -#define MEMSTICK_IO_SG 2 - + long_data:1; unsigned char int_reg; int error; union { @@ -231,8 +272,9 @@ struct memstick_host { struct mutex lock; unsigned int id; unsigned int caps; -#define MEMSTICK_CAP_PARALLEL 1 -#define MEMSTICK_CAP_AUTO_GET_INT 2 +#define MEMSTICK_CAP_AUTO_GET_INT 1 +#define MEMSTICK_CAP_PAR4 2 +#define MEMSTICK_CAP_PAR8 4 struct work_struct media_checker; struct class_device cdev; -- GitLab From d114ad54ffb020dc781b6159c1c2f391c6ec418f Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:38 -0700 Subject: [PATCH 707/923] memstick: add memstick_suspend/resume_host methods Bus driver may need to be informed that host is being suspended/resumed. Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/core/memstick.c | 25 +++++++++++++++++++++++++ drivers/memstick/host/tifm_ms.c | 8 ++++---- include/linux/memstick.h | 2 ++ 3 files changed, 31 insertions(+), 4 deletions(-) diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c index 5e0e960df45..3c97bac4e47 100644 --- a/drivers/memstick/core/memstick.c +++ b/drivers/memstick/core/memstick.c @@ -561,6 +561,31 @@ void memstick_free_host(struct memstick_host *host) } EXPORT_SYMBOL(memstick_free_host); +/** + * memstick_suspend_host - notify bus driver of host suspension + * @host - host to use + */ +void memstick_suspend_host(struct memstick_host *host) +{ + mutex_lock(&host->lock); + host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF); + mutex_unlock(&host->lock); +} +EXPORT_SYMBOL(memstick_suspend_host); + +/** + * memstick_resume_host - notify bus driver of host resumption + * @host - host to use + */ +void memstick_resume_host(struct memstick_host *host) +{ + mutex_lock(&host->lock); + host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON); + mutex_unlock(&host->lock); + memstick_detect_change(host); +} +EXPORT_SYMBOL(memstick_resume_host); + int memstick_register_driver(struct memstick_driver *drv) { drv->driver.bus = &memstick_bus_type; diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c index 5b5bd61b3a4..8b1c102fc31 100644 --- a/drivers/memstick/host/tifm_ms.c +++ b/drivers/memstick/host/tifm_ms.c @@ -627,17 +627,17 @@ static void tifm_ms_remove(struct tifm_dev *sock) static int tifm_ms_suspend(struct tifm_dev *sock, pm_message_t state) { + struct memstick_host *msh = tifm_get_drvdata(sock); + + memstick_suspend_host(msh); return 0; } static int tifm_ms_resume(struct tifm_dev *sock) { struct memstick_host *msh = tifm_get_drvdata(sock); - struct tifm_ms *host = memstick_priv(msh); - - tifm_ms_initialize_host(host); - memstick_detect_change(msh); + memstick_resume_host(msh); return 0; } diff --git a/include/linux/memstick.h b/include/linux/memstick.h index c104e722de0..b7ee2588883 100644 --- a/include/linux/memstick.h +++ b/include/linux/memstick.h @@ -312,6 +312,8 @@ int memstick_add_host(struct memstick_host *host); void memstick_remove_host(struct memstick_host *host); void memstick_free_host(struct memstick_host *host); void memstick_detect_change(struct memstick_host *host); +void memstick_suspend_host(struct memstick_host *host); +void memstick_resume_host(struct memstick_host *host); void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc, struct scatterlist *sg); -- GitLab From 29196dc67e1b76ce84e25228783f6b8a3c48e9dd Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:38 -0700 Subject: [PATCH 708/923] memstick: make sure number of command retries is exactly as specified Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/core/memstick.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c index 3c97bac4e47..decd6a49fd5 100644 --- a/drivers/memstick/core/memstick.c +++ b/drivers/memstick/core/memstick.c @@ -236,7 +236,7 @@ int memstick_next_req(struct memstick_host *host, struct memstick_request **mrq) rc = host->card->next_request(host->card, mrq); if (!rc) - host->retries = cmd_retries; + host->retries = cmd_retries > 1 ? cmd_retries - 1 : 1; else *mrq = NULL; -- GitLab From 2a4f2568c22a381d7568314052c1dd40f6d3680a Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:39 -0700 Subject: [PATCH 709/923] memstick: drop DRIVER_VERSION numbers as meaningless Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/core/memstick.c | 2 -- drivers/memstick/core/mspro_block.c | 2 -- drivers/memstick/host/tifm_ms.c | 2 -- 3 files changed, 6 deletions(-) diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c index decd6a49fd5..de80dba12f9 100644 --- a/drivers/memstick/core/memstick.c +++ b/drivers/memstick/core/memstick.c @@ -18,7 +18,6 @@ #include #define DRIVER_NAME "memstick" -#define DRIVER_VERSION "0.2" static unsigned int cmd_retries = 3; module_param(cmd_retries, uint, 0644); @@ -636,4 +635,3 @@ module_exit(memstick_exit); MODULE_AUTHOR("Alex Dubov"); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Sony MemoryStick core driver"); -MODULE_VERSION(DRIVER_VERSION); diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index 214211c8ac9..00e74ea4dd5 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -19,7 +19,6 @@ #include #define DRIVER_NAME "mspro_block" -#define DRIVER_VERSION "0.2" static int major; module_param(major, int, 0644); @@ -1348,4 +1347,3 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Alex Dubov"); MODULE_DESCRIPTION("Sony MemoryStickPro block device driver"); MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl); -MODULE_VERSION(DRIVER_VERSION); diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c index 8b1c102fc31..c62e709ca77 100644 --- a/drivers/memstick/host/tifm_ms.c +++ b/drivers/memstick/host/tifm_ms.c @@ -20,7 +20,6 @@ #include #define DRIVER_NAME "tifm_ms" -#define DRIVER_VERSION "0.1" static int no_dma; module_param(no_dma, bool, 0644); @@ -678,7 +677,6 @@ MODULE_AUTHOR("Alex Dubov"); MODULE_DESCRIPTION("TI FlashMedia MemoryStick driver"); MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(tifm, tifm_ms_id_tbl); -MODULE_VERSION(DRIVER_VERSION); module_init(tifm_ms_init); module_exit(tifm_ms_exit); -- GitLab From 92b22d935fed1e4d88b9b6f9a674ab2a4272ee78 Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:40 -0700 Subject: [PATCH 710/923] tifm: fix the MemoryStick host fifo handling code Additional input received from JMicron on MemoryStick host interfaces showed that some assumtions in fifo handling code were incorrect. This patch also fixes data corruption used to occure during PIO transfers. Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/host/tifm_ms.c | 524 ++++++++++++++++---------------- include/linux/tifm.h | 2 +- 2 files changed, 264 insertions(+), 262 deletions(-) diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c index c62e709ca77..b88f5b30efb 100644 --- a/drivers/memstick/host/tifm_ms.c +++ b/drivers/memstick/host/tifm_ms.c @@ -24,275 +24,289 @@ static int no_dma; module_param(no_dma, bool, 0644); -#define TIFM_MS_TIMEOUT 0x00100 -#define TIFM_MS_BADCRC 0x00200 -#define TIFM_MS_EOTPC 0x01000 -#define TIFM_MS_INT 0x02000 - -/* The meaning of the bit majority in this constant is unknown. */ -#define TIFM_MS_SERIAL 0x04010 +/* + * Some control bits of TIFM appear to conform to Sony's reference design, + * so I'm just assuming they all are. + */ -#define TIFM_MS_SYS_LATCH 0x00100 -#define TIFM_MS_SYS_NOT_RDY 0x00800 -#define TIFM_MS_SYS_DATA 0x10000 +#define TIFM_MS_STAT_DRQ 0x04000 +#define TIFM_MS_STAT_MSINT 0x02000 +#define TIFM_MS_STAT_RDY 0x01000 +#define TIFM_MS_STAT_CRC 0x00200 +#define TIFM_MS_STAT_TOE 0x00100 +#define TIFM_MS_STAT_EMP 0x00020 +#define TIFM_MS_STAT_FUL 0x00010 +#define TIFM_MS_STAT_CED 0x00008 +#define TIFM_MS_STAT_ERR 0x00004 +#define TIFM_MS_STAT_BRQ 0x00002 +#define TIFM_MS_STAT_CNK 0x00001 + +#define TIFM_MS_SYS_DMA 0x10000 +#define TIFM_MS_SYS_RESET 0x08000 +#define TIFM_MS_SYS_SRAC 0x04000 +#define TIFM_MS_SYS_INTEN 0x02000 +#define TIFM_MS_SYS_NOCRC 0x01000 +#define TIFM_MS_SYS_INTCLR 0x00800 +#define TIFM_MS_SYS_MSIEN 0x00400 +#define TIFM_MS_SYS_FCLR 0x00200 +#define TIFM_MS_SYS_FDIR 0x00100 +#define TIFM_MS_SYS_DAM 0x00080 +#define TIFM_MS_SYS_DRM 0x00040 +#define TIFM_MS_SYS_DRQSL 0x00020 +#define TIFM_MS_SYS_REI 0x00010 +#define TIFM_MS_SYS_REO 0x00008 +#define TIFM_MS_SYS_BSY_MASK 0x00007 + +#define TIFM_MS_SYS_FIFO (TIFM_MS_SYS_INTEN | TIFM_MS_SYS_MSIEN \ + | TIFM_MS_SYS_FCLR | TIFM_MS_SYS_BSY_MASK) /* Hardware flags */ enum { - CMD_READY = 0x0001, - FIFO_READY = 0x0002, - CARD_READY = 0x0004, - DATA_CARRY = 0x0008 + CMD_READY = 0x01, + FIFO_READY = 0x02, + CARD_INT = 0x04 }; struct tifm_ms { struct tifm_dev *dev; - unsigned short eject:1, - no_dma:1; - unsigned short cmd_flags; + struct timer_list timer; + struct memstick_request *req; unsigned int mode_mask; unsigned int block_pos; unsigned long timeout_jiffies; - - struct timer_list timer; - struct memstick_request *req; + unsigned char eject:1, + use_dma:1; + unsigned char cmd_flags; + unsigned char io_pos; unsigned int io_word; }; -static void tifm_ms_read_fifo(struct tifm_ms *host, unsigned int fifo_offset, - struct page *pg, unsigned int page_off, - unsigned int length) +static unsigned int tifm_ms_read_data(struct tifm_ms *host, + unsigned char *buf, unsigned int length) { struct tifm_dev *sock = host->dev; - unsigned int cnt = 0, off = 0; - unsigned char *buf = kmap_atomic(pg, KM_BIO_DST_IRQ) + page_off; + unsigned int off = 0; + + while (host->io_pos && length) { + buf[off++] = host->io_word & 0xff; + host->io_word >>= 8; + length--; + host->io_pos--; + } + + if (!length) + return off; + + while (!(TIFM_MS_STAT_EMP & readl(sock->addr + SOCK_MS_STATUS))) { + if (length < 4) + break; + *(unsigned int *)(buf + off) = __raw_readl(sock->addr + + SOCK_MS_DATA); + length -= 4; + off += 4; + } - if (host->cmd_flags & DATA_CARRY) { - while ((fifo_offset & 3) && length) { + if (length + && !(TIFM_MS_STAT_EMP & readl(sock->addr + SOCK_MS_STATUS))) { + host->io_word = readl(sock->addr + SOCK_MS_DATA); + for (host->io_pos = 4; host->io_pos; --host->io_pos) { buf[off++] = host->io_word & 0xff; host->io_word >>= 8; length--; - fifo_offset++; + if (!length) + break; } - if (!(fifo_offset & 3)) - host->cmd_flags &= ~DATA_CARRY; - if (!length) - return; } - do { - host->io_word = readl(sock->addr + SOCK_FIFO_ACCESS - + fifo_offset); - cnt = 4; - while (length && cnt) { - buf[off++] = (host->io_word >> 8) & 0xff; - cnt--; - length--; - } - fifo_offset += 4 - cnt; - } while (length); - - if (cnt) - host->cmd_flags |= DATA_CARRY; - - kunmap_atomic(buf - page_off, KM_BIO_DST_IRQ); + return off; } -static void tifm_ms_write_fifo(struct tifm_ms *host, unsigned int fifo_offset, - struct page *pg, unsigned int page_off, - unsigned int length) +static unsigned int tifm_ms_write_data(struct tifm_ms *host, + unsigned char *buf, unsigned int length) { struct tifm_dev *sock = host->dev; - unsigned int cnt = 0, off = 0; - unsigned char *buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + page_off; + unsigned int off = 0; - if (host->cmd_flags & DATA_CARRY) { - while (fifo_offset & 3) { - host->io_word |= buf[off++] << (8 * (fifo_offset & 3)); + if (host->io_pos) { + while (host->io_pos < 4 && length) { + host->io_word |= buf[off++] << (host->io_pos * 8); + host->io_pos++; length--; - fifo_offset++; - } - if (!(fifo_offset & 3)) { - writel(host->io_word, sock->addr + SOCK_FIFO_ACCESS - + fifo_offset - 4); - - host->cmd_flags &= ~DATA_CARRY; } - if (!length) - return; } - do { - cnt = 4; + if (host->io_pos == 4 + && !(TIFM_MS_STAT_FUL & readl(sock->addr + SOCK_MS_STATUS))) { + writel(TIFM_MS_SYS_FDIR | readl(sock->addr + SOCK_MS_SYSTEM), + sock->addr + SOCK_MS_SYSTEM); + writel(host->io_word, sock->addr + SOCK_MS_DATA); + host->io_pos = 0; host->io_word = 0; - while (length && cnt) { - host->io_word |= buf[off++] << (4 - cnt); - cnt--; - length--; - } - fifo_offset += 4 - cnt; - if (!cnt) - writel(host->io_word, sock->addr + SOCK_FIFO_ACCESS - + fifo_offset - 4); - - } while (length); - - if (cnt) - host->cmd_flags |= DATA_CARRY; + } else if (host->io_pos) { + return off; + } - kunmap_atomic(buf - page_off, KM_BIO_SRC_IRQ); -} + if (!length) + return off; -static void tifm_ms_move_block(struct tifm_ms *host, unsigned int length) -{ - unsigned int t_size; - unsigned int off = host->req->sg.offset + host->block_pos; - unsigned int p_off, p_cnt; - struct page *pg; - unsigned long flags; + while (!(TIFM_MS_STAT_FUL & readl(sock->addr + SOCK_MS_STATUS))) { + if (length < 4) + break; + writel(TIFM_MS_SYS_FDIR | readl(sock->addr + SOCK_MS_SYSTEM), + sock->addr + SOCK_MS_SYSTEM); + __raw_writel(*(unsigned int *)(buf + off), + sock->addr + SOCK_MS_DATA); + length -= 4; + off += 4; + } - dev_dbg(&host->dev->dev, "moving block\n"); - local_irq_save(flags); - t_size = length; - while (t_size) { - pg = nth_page(sg_page(&host->req->sg), off >> PAGE_SHIFT); - p_off = offset_in_page(off); - p_cnt = PAGE_SIZE - p_off; - p_cnt = min(p_cnt, t_size); + switch (length) { + case 3: + host->io_word |= buf[off + 2] << 16; + host->io_pos++; + case 2: + host->io_word |= buf[off + 1] << 8; + host->io_pos++; + case 1: + host->io_word |= buf[off]; + host->io_pos++; + } - if (host->req->data_dir == WRITE) - tifm_ms_write_fifo(host, length - t_size, - pg, p_off, p_cnt); - else - tifm_ms_read_fifo(host, length - t_size, - pg, p_off, p_cnt); + off += host->io_pos; - t_size -= p_cnt; - } - local_irq_restore(flags); + return off; } -static int tifm_ms_transfer_data(struct tifm_ms *host, int skip) +static unsigned int tifm_ms_transfer_data(struct tifm_ms *host) { struct tifm_dev *sock = host->dev; - unsigned int length = host->req->sg.length - host->block_pos; + unsigned int length; + unsigned int off; + unsigned int t_size, p_off, p_cnt; + unsigned char *buf; + struct page *pg; + unsigned long flags = 0; - if (!length) - return 1; + if (host->req->long_data) { + length = host->req->sg.length - host->block_pos; + off = host->req->sg.offset + host->block_pos; + } else { + length = host->req->data_len - host->block_pos; + off = 0; + } + dev_dbg(&sock->dev, "fifo data transfer, %d, %d\n", length, + host->block_pos); + + while (length) { + if (host->req->long_data) { + pg = nth_page(sg_page(&host->req->sg), + off >> PAGE_SHIFT); + p_off = offset_in_page(off); + p_cnt = PAGE_SIZE - p_off; + p_cnt = min(p_cnt, length); + + local_irq_save(flags); + buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + p_off; + } else { + buf = host->req->data + host->block_pos; + p_cnt = host->req->data_len - host->block_pos; + } - if (length > TIFM_FIFO_SIZE) - length = TIFM_FIFO_SIZE; + t_size = host->req->data_dir == WRITE + ? tifm_ms_write_data(host, buf, p_cnt) + : tifm_ms_read_data(host, buf, p_cnt); - if (!skip) { - tifm_ms_move_block(host, length); - host->block_pos += length; - } + if (host->req->long_data) { + kunmap_atomic(buf - p_off, KM_BIO_SRC_IRQ); + local_irq_restore(flags); + } - if ((host->req->data_dir == READ) - && (host->block_pos == host->req->sg.length)) - return 1; + if (!t_size) + break; + host->block_pos += t_size; + length -= t_size; + off += t_size; + } - writel(ilog2(length) - 2, sock->addr + SOCK_FIFO_PAGE_SIZE); - if (host->req->data_dir == WRITE) - writel((1 << 8) | TIFM_DMA_TX, sock->addr + SOCK_DMA_CONTROL); - else - writel((1 << 8), sock->addr + SOCK_DMA_CONTROL); + dev_dbg(&sock->dev, "fifo data transfer, %d remaining\n", length); + if (!length && (host->req->data_dir == WRITE)) { + if (host->io_pos) { + writel(TIFM_MS_SYS_FDIR + | readl(sock->addr + SOCK_MS_SYSTEM), + sock->addr + SOCK_MS_SYSTEM); + writel(host->io_word, sock->addr + SOCK_MS_DATA); + } + writel(TIFM_MS_SYS_FDIR + | readl(sock->addr + SOCK_MS_SYSTEM), + sock->addr + SOCK_MS_SYSTEM); + writel(0, sock->addr + SOCK_MS_DATA); + } else { + readl(sock->addr + SOCK_MS_DATA); + } - return 0; + return length; } static int tifm_ms_issue_cmd(struct tifm_ms *host) { struct tifm_dev *sock = host->dev; unsigned char *data; - unsigned int data_len = 0, cmd = 0, cmd_mask = 0, cnt, tval = 0; + unsigned int data_len, cmd, sys_param; + host->cmd_flags = 0; + host->block_pos = 0; + host->io_pos = 0; + host->io_word = 0; host->cmd_flags = 0; - if (host->req->long_data) { - if (!host->no_dma) { - if (1 != tifm_map_sg(sock, &host->req->sg, 1, - host->req->data_dir == READ - ? PCI_DMA_FROMDEVICE - : PCI_DMA_TODEVICE)) { - host->req->error = -ENOMEM; - return host->req->error; - } - data_len = sg_dma_len(&host->req->sg); - } else - data_len = host->req->sg.length; - - writel(TIFM_FIFO_INT_SETALL, - sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); - writel(TIFM_FIFO_ENABLE, - sock->addr + SOCK_FIFO_CONTROL); - writel(TIFM_FIFO_INTMASK, - sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET); + data = host->req->data; - if (!host->no_dma) { - writel(ilog2(data_len) - 2, - sock->addr + SOCK_FIFO_PAGE_SIZE); - writel(sg_dma_address(&host->req->sg), - sock->addr + SOCK_DMA_ADDRESS); - if (host->req->data_dir == WRITE) - writel((1 << 8) | TIFM_DMA_TX | TIFM_DMA_EN, - sock->addr + SOCK_DMA_CONTROL); - else - writel((1 << 8) | TIFM_DMA_EN, - sock->addr + SOCK_DMA_CONTROL); - } else { - tifm_ms_transfer_data(host, - host->req->data_dir == READ); - } + host->use_dma = !no_dma; - cmd_mask = readl(sock->addr + SOCK_MS_SYSTEM); - cmd_mask |= TIFM_MS_SYS_DATA | TIFM_MS_SYS_NOT_RDY; - writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM); + if (host->req->long_data) { + data_len = host->req->sg.length; + if (!is_power_of_2(data_len)) + host->use_dma = 0; } else { - data = host->req->data; data_len = host->req->data_len; + host->use_dma = 0; + } - cmd_mask = host->mode_mask | 0x2607; /* unknown constant */ - - if (host->req->data_dir == WRITE) { - cmd_mask |= TIFM_MS_SYS_LATCH; - writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM); - for (cnt = 0; (data_len - cnt) >= 4; cnt += 4) { - writel(TIFM_MS_SYS_LATCH - | readl(sock->addr + SOCK_MS_SYSTEM), - sock->addr + SOCK_MS_SYSTEM); - __raw_writel(*(unsigned int *)(data + cnt), - sock->addr + SOCK_MS_DATA); - dev_dbg(&sock->dev, "writing %x\n", - *(int *)(data + cnt)); - } - switch (data_len - cnt) { - case 3: - tval |= data[cnt + 2] << 16; - case 2: - tval |= data[cnt + 1] << 8; - case 1: - tval |= data[cnt]; - writel(TIFM_MS_SYS_LATCH - | readl(sock->addr + SOCK_MS_SYSTEM), - sock->addr + SOCK_MS_SYSTEM); - writel(tval, sock->addr + SOCK_MS_DATA); - dev_dbg(&sock->dev, "writing %x\n", tval); - } + writel(TIFM_FIFO_INT_SETALL, + sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); + writel(TIFM_FIFO_ENABLE, + sock->addr + SOCK_FIFO_CONTROL); + + if (host->use_dma) { + if (1 != tifm_map_sg(sock, &host->req->sg, 1, + host->req->data_dir == READ + ? PCI_DMA_FROMDEVICE + : PCI_DMA_TODEVICE)) { + host->req->error = -ENOMEM; + return host->req->error; + } + data_len = sg_dma_len(&host->req->sg); - writel(TIFM_MS_SYS_LATCH - | readl(sock->addr + SOCK_MS_SYSTEM), - sock->addr + SOCK_MS_SYSTEM); - writel(0, sock->addr + SOCK_MS_DATA); - dev_dbg(&sock->dev, "writing %x\n", 0); + writel(ilog2(data_len) - 2, + sock->addr + SOCK_FIFO_PAGE_SIZE); + writel(TIFM_FIFO_INTMASK, + sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET); + sys_param = TIFM_DMA_EN | (1 << 8); + if (host->req->data_dir == WRITE) + sys_param |= TIFM_DMA_TX; - } else - writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM); + writel(TIFM_FIFO_INTMASK, + sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET); - cmd_mask = readl(sock->addr + SOCK_MS_SYSTEM); - cmd_mask &= ~TIFM_MS_SYS_DATA; - cmd_mask |= TIFM_MS_SYS_NOT_RDY; - dev_dbg(&sock->dev, "mask %x\n", cmd_mask); - writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM); + writel(sg_dma_address(&host->req->sg), + sock->addr + SOCK_DMA_ADDRESS); + writel(sys_param, sock->addr + SOCK_DMA_CONTROL); + } else { + writel(host->mode_mask | TIFM_MS_SYS_FIFO, + sock->addr + SOCK_MS_SYSTEM); + + writel(TIFM_FIFO_MORE, + sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET); } mod_timer(&host->timer, jiffies + host->timeout_jiffies); @@ -300,11 +314,21 @@ static int tifm_ms_issue_cmd(struct tifm_ms *host) sock->addr + SOCK_CONTROL); host->req->error = 0; + sys_param = readl(sock->addr + SOCK_MS_SYSTEM); + sys_param |= TIFM_MS_SYS_INTCLR; + + if (host->use_dma) + sys_param |= TIFM_MS_SYS_DMA; + else + sys_param &= ~TIFM_MS_SYS_DMA; + + writel(sys_param, sock->addr + SOCK_MS_SYSTEM); + cmd = (host->req->tpc & 0xf) << 12; cmd |= data_len; writel(cmd, sock->addr + SOCK_MS_COMMAND); - dev_dbg(&sock->dev, "executing TPC %x, %x\n", cmd, cmd_mask); + dev_dbg(&sock->dev, "executing TPC %x, %x\n", cmd, sys_param); return 0; } @@ -312,47 +336,20 @@ static void tifm_ms_complete_cmd(struct tifm_ms *host) { struct tifm_dev *sock = host->dev; struct memstick_host *msh = tifm_get_drvdata(sock); - unsigned int tval = 0, data_len; - unsigned char *data; int rc; del_timer(&host->timer); - if (host->req->long_data) { - if (!host->no_dma) - tifm_unmap_sg(sock, &host->req->sg, 1, - host->req->data_dir == READ - ? PCI_DMA_FROMDEVICE - : PCI_DMA_TODEVICE); - } else { - writel(~TIFM_MS_SYS_DATA & readl(sock->addr + SOCK_MS_SYSTEM), - sock->addr + SOCK_MS_SYSTEM); - - data = host->req->data; - data_len = host->req->data_len; - if (host->req->data_dir == READ) { - for (rc = 0; (data_len - rc) >= 4; rc += 4) - *(int *)(data + rc) - = __raw_readl(sock->addr - + SOCK_MS_DATA); - - if (data_len - rc) - tval = readl(sock->addr + SOCK_MS_DATA); - switch (data_len - rc) { - case 3: - data[rc + 2] = (tval >> 16) & 0xff; - case 2: - data[rc + 1] = (tval >> 8) & 0xff; - case 1: - data[rc] = tval & 0xff; - } - readl(sock->addr + SOCK_MS_DATA); - } - } + if (host->use_dma) + tifm_unmap_sg(sock, &host->req->sg, 1, + host->req->data_dir == READ + ? PCI_DMA_FROMDEVICE + : PCI_DMA_TODEVICE); writel((~TIFM_CTRL_LED) & readl(sock->addr + SOCK_CONTROL), sock->addr + SOCK_CONTROL); + dev_dbg(&sock->dev, "TPC complete\n"); do { rc = memstick_next_req(msh, &host->req); } while (!rc && tifm_ms_issue_cmd(host)); @@ -363,11 +360,10 @@ static int tifm_ms_check_status(struct tifm_ms *host) if (!host->req->error) { if (!(host->cmd_flags & CMD_READY)) return 1; - if (host->req->long_data - && !(host->cmd_flags & FIFO_READY)) + if (!(host->cmd_flags & FIFO_READY)) return 1; if (host->req->need_card_int - && !(host->cmd_flags & CARD_READY)) + && !(host->cmd_flags & CARD_INT)) return 1; } return 0; @@ -377,18 +373,24 @@ static int tifm_ms_check_status(struct tifm_ms *host) static void tifm_ms_data_event(struct tifm_dev *sock) { struct tifm_ms *host; - unsigned int fifo_status = 0; + unsigned int fifo_status = 0, host_status = 0; int rc = 1; spin_lock(&sock->lock); host = memstick_priv((struct memstick_host *)tifm_get_drvdata(sock)); fifo_status = readl(sock->addr + SOCK_DMA_FIFO_STATUS); - dev_dbg(&sock->dev, "data event: fifo_status %x, flags %x\n", - fifo_status, host->cmd_flags); + host_status = readl(sock->addr + SOCK_MS_STATUS); + dev_dbg(&sock->dev, + "data event: fifo_status %x, host_status %x, flags %x\n", + fifo_status, host_status, host->cmd_flags); if (host->req) { - if (fifo_status & TIFM_FIFO_READY) { - if (!host->no_dma || tifm_ms_transfer_data(host, 0)) { + if (host->use_dma && (fifo_status & 1)) { + host->cmd_flags |= FIFO_READY; + rc = tifm_ms_check_status(host); + } + if (!host->use_dma && (fifo_status & TIFM_FIFO_MORE)) { + if (!tifm_ms_transfer_data(host)) { host->cmd_flags |= FIFO_READY; rc = tifm_ms_check_status(host); } @@ -417,9 +419,9 @@ static void tifm_ms_card_event(struct tifm_dev *sock) host_status, host->cmd_flags); if (host->req) { - if (host_status & TIFM_MS_TIMEOUT) + if (host_status & TIFM_MS_STAT_TOE) host->req->error = -ETIME; - else if (host_status & TIFM_MS_BADCRC) + else if (host_status & TIFM_MS_STAT_CRC) host->req->error = -EILSEQ; if (host->req->error) { @@ -428,18 +430,17 @@ static void tifm_ms_card_event(struct tifm_dev *sock) writel(TIFM_DMA_RESET, sock->addr + SOCK_DMA_CONTROL); } - if (host_status & TIFM_MS_EOTPC) + if (host_status & TIFM_MS_STAT_RDY) host->cmd_flags |= CMD_READY; - if (host_status & TIFM_MS_INT) - host->cmd_flags |= CARD_READY; + + if (host_status & TIFM_MS_STAT_MSINT) + host->cmd_flags |= CARD_INT; rc = tifm_ms_check_status(host); } - writel(TIFM_MS_SYS_NOT_RDY | readl(sock->addr + SOCK_MS_SYSTEM), - sock->addr + SOCK_MS_SYSTEM); - writel((~TIFM_MS_SYS_DATA) & readl(sock->addr + SOCK_MS_SYSTEM), + writel(TIFM_MS_SYS_INTCLR | readl(sock->addr + SOCK_MS_SYSTEM), sock->addr + SOCK_MS_SYSTEM); if (!rc) @@ -499,7 +500,7 @@ static void tifm_ms_set_param(struct memstick_host *msh, break; case MEMSTICK_INTERFACE: if (value == MEMSTICK_SERIAL) { - host->mode_mask = TIFM_MS_SERIAL; + host->mode_mask = TIFM_MS_SYS_SRAC | TIFM_MS_SYS_REI; writel((~TIFM_CTRL_FAST_CLK) & readl(sock->addr + SOCK_CONTROL), sock->addr + SOCK_CONTROL); @@ -535,9 +536,10 @@ static int tifm_ms_initialize_host(struct tifm_ms *host) struct tifm_dev *sock = host->dev; struct memstick_host *msh = tifm_get_drvdata(sock); - host->mode_mask = TIFM_MS_SERIAL; - writel(0x8000, sock->addr + SOCK_MS_SYSTEM); - writel(0x0200 | TIFM_MS_SYS_NOT_RDY, sock->addr + SOCK_MS_SYSTEM); + host->mode_mask = TIFM_MS_SYS_SRAC | TIFM_MS_SYS_REI; + writel(TIFM_MS_SYS_RESET, sock->addr + SOCK_MS_SYSTEM); + writel(TIFM_MS_SYS_FCLR | TIFM_MS_SYS_INTCLR, + sock->addr + SOCK_MS_SYSTEM); writel(0xffffffff, sock->addr + SOCK_MS_STATUS); if (tifm_has_ms_pif(sock)) msh->caps |= MEMSTICK_CAP_PAR4; @@ -566,7 +568,6 @@ static int tifm_ms_probe(struct tifm_dev *sock) tifm_set_drvdata(sock, msh); host->dev = sock; host->timeout_jiffies = msecs_to_jiffies(1000); - host->no_dma = no_dma; setup_timer(&host->timer, tifm_ms_abort, (unsigned long)host); @@ -599,7 +600,7 @@ static void tifm_ms_remove(struct tifm_dev *sock) writel(TIFM_FIFO_INT_SETALL, sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR); writel(TIFM_DMA_RESET, sock->addr + SOCK_DMA_CONTROL); - if (host->req->long_data && !host->no_dma) + if (host->use_dma) tifm_unmap_sg(sock, &host->req->sg, 1, host->req->data_dir == READ ? PCI_DMA_TODEVICE @@ -616,7 +617,8 @@ static void tifm_ms_remove(struct tifm_dev *sock) memstick_remove_host(msh); - writel(0x0200 | TIFM_MS_SYS_NOT_RDY, sock->addr + SOCK_MS_SYSTEM); + writel(TIFM_MS_SYS_FCLR | TIFM_MS_SYS_INTCLR, + sock->addr + SOCK_MS_SYSTEM); writel(0xffffffff, sock->addr + SOCK_MS_STATUS); memstick_free_host(msh); diff --git a/include/linux/tifm.h b/include/linux/tifm.h index da76ed85f59..848c0f39254 100644 --- a/include/linux/tifm.h +++ b/include/linux/tifm.h @@ -70,9 +70,9 @@ enum { #define TIFM_FIFO_ENABLE 0x00000001 #define TIFM_FIFO_READY 0x00000001 +#define TIFM_FIFO_MORE 0x00000008 #define TIFM_FIFO_INT_SETALL 0x0000ffff #define TIFM_FIFO_INTMASK 0x00000005 -#define TIFM_FIFO_SIZE 0x00000200 #define TIFM_DMA_RESET 0x00000002 #define TIFM_DMA_TX 0x00008000 -- GitLab From eebbe9ca7855eb520cde62234028b6bd90083659 Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:40 -0700 Subject: [PATCH 711/923] tifm: fix memorystick host initialization code Instead of assuming that host is powered on only once at card insertion, allow for the possibility that memstick layer may need to cycle card's power to get it out from some unhealthy states. Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/host/tifm_ms.c | 40 +++++++++++++-------------------- 1 file changed, 15 insertions(+), 25 deletions(-) diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c index b88f5b30efb..2b5bf52a830 100644 --- a/drivers/memstick/host/tifm_ms.c +++ b/drivers/memstick/host/tifm_ms.c @@ -496,7 +496,18 @@ static void tifm_ms_set_param(struct memstick_host *msh, switch (param) { case MEMSTICK_POWER: - /* this is set by card detection mechanism */ + /* also affected by media detection mechanism */ + if (value == MEMSTICK_POWER_ON) { + host->mode_mask = TIFM_MS_SYS_SRAC | TIFM_MS_SYS_REI; + writel(TIFM_MS_SYS_RESET, sock->addr + SOCK_MS_SYSTEM); + writel(TIFM_MS_SYS_FCLR | TIFM_MS_SYS_INTCLR, + sock->addr + SOCK_MS_SYSTEM); + writel(0xffffffff, sock->addr + SOCK_MS_STATUS); + } else if (value == MEMSTICK_POWER_OFF) { + writel(TIFM_MS_SYS_FCLR | TIFM_MS_SYS_INTCLR, + sock->addr + SOCK_MS_SYSTEM); + writel(0xffffffff, sock->addr + SOCK_MS_STATUS); + } break; case MEMSTICK_INTERFACE: if (value == MEMSTICK_SERIAL) { @@ -531,22 +542,6 @@ static void tifm_ms_abort(unsigned long data) tifm_eject(host->dev); } -static int tifm_ms_initialize_host(struct tifm_ms *host) -{ - struct tifm_dev *sock = host->dev; - struct memstick_host *msh = tifm_get_drvdata(sock); - - host->mode_mask = TIFM_MS_SYS_SRAC | TIFM_MS_SYS_REI; - writel(TIFM_MS_SYS_RESET, sock->addr + SOCK_MS_SYSTEM); - writel(TIFM_MS_SYS_FCLR | TIFM_MS_SYS_INTCLR, - sock->addr + SOCK_MS_SYSTEM); - writel(0xffffffff, sock->addr + SOCK_MS_STATUS); - if (tifm_has_ms_pif(sock)) - msh->caps |= MEMSTICK_CAP_PAR4; - - return 0; -} - static int tifm_ms_probe(struct tifm_dev *sock) { struct memstick_host *msh; @@ -575,10 +570,10 @@ static int tifm_ms_probe(struct tifm_dev *sock) msh->set_param = tifm_ms_set_param; sock->card_event = tifm_ms_card_event; sock->data_event = tifm_ms_data_event; - rc = tifm_ms_initialize_host(host); + if (tifm_has_ms_pif(sock)) + msh->caps |= MEMSTICK_CAP_PAR4; - if (!rc) - rc = memstick_add_host(msh); + rc = memstick_add_host(msh); if (!rc) return 0; @@ -616,11 +611,6 @@ static void tifm_ms_remove(struct tifm_dev *sock) spin_unlock_irqrestore(&sock->lock, flags); memstick_remove_host(msh); - - writel(TIFM_MS_SYS_FCLR | TIFM_MS_SYS_INTCLR, - sock->addr + SOCK_MS_SYSTEM); - writel(0xffffffff, sock->addr + SOCK_MS_STATUS); - memstick_free_host(msh); } -- GitLab From e4c70e8521c893fa96b14ed5d90d52fa37ac1dec Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:41 -0700 Subject: [PATCH 712/923] tifm: clear interrupt mask bits before setting them on adapter init This should improve reliability of detection of cards already in socket on driver load. Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/tifm_7xx1.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c index 63a089b2954..67503ea71d2 100644 --- a/drivers/misc/tifm_7xx1.c +++ b/drivers/misc/tifm_7xx1.c @@ -367,6 +367,8 @@ static int tifm_7xx1_probe(struct pci_dev *dev, if (rc) goto err_out_irq; + writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), + fm->addr + FM_CLEAR_INTERRUPT_ENABLE); writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1), fm->addr + FM_SET_INTERRUPT_ENABLE); return 0; -- GitLab From efb2742e5ddd03197fcf066e2d2a75d36cf04fd1 Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:41 -0700 Subject: [PATCH 713/923] memstick: add support for decoding "specfile" media attributes Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/core/mspro_block.c | 49 +++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index 00e74ea4dd5..2381c5d7275 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -109,6 +109,17 @@ struct mspro_mbr { unsigned int sectors_per_partition; } __attribute__((packed)); +struct mspro_specfile { + char name[8]; + char ext[3]; + unsigned char attr; + unsigned char reserved[10]; + unsigned short time; + unsigned short date; + unsigned short cluster; + unsigned int size; +} __attribute__((packed)); + struct mspro_devinfo { unsigned short cylinders; unsigned short heads; @@ -397,6 +408,41 @@ static ssize_t mspro_block_attr_show_mbr(struct device *dev, return rc; } +static ssize_t mspro_block_attr_show_specfile(struct device *dev, + struct device_attribute *attr, + char *buffer) +{ + struct mspro_sys_attr *x_attr = container_of(attr, + struct mspro_sys_attr, + dev_attr); + struct mspro_specfile *x_spfile = x_attr->data; + char name[9], ext[4]; + ssize_t rc = 0; + + memcpy(name, x_spfile->name, 8); + name[8] = 0; + memcpy(ext, x_spfile->ext, 3); + ext[3] = 0; + + rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "name: %s\n", name); + rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "ext: %s\n", ext); + rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "attribute: %x\n", + x_spfile->attr); + rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "time: %d:%d:%d\n", + x_spfile->time >> 11, + (x_spfile->time >> 5) & 0x3f, + (x_spfile->time & 0x1f) * 2); + rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "date: %d-%d-%d\n", + (x_spfile->date >> 9) + 1980, + (x_spfile->date >> 5) & 0xf, + x_spfile->date & 0x1f); + rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cluster: %x\n", + x_spfile->cluster); + rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "size: %x\n", + x_spfile->size); + return rc; +} + static ssize_t mspro_block_attr_show_devinfo(struct device *dev, struct device_attribute *attr, char *buffer) @@ -429,6 +475,9 @@ static sysfs_show_t mspro_block_attr_show(unsigned char tag) return mspro_block_attr_show_modelname; case MSPRO_BLOCK_ID_MBR: return mspro_block_attr_show_mbr; + case MSPRO_BLOCK_ID_SPECFILEVALUES1: + case MSPRO_BLOCK_ID_SPECFILEVALUES2: + return mspro_block_attr_show_specfile; case MSPRO_BLOCK_ID_DEVINFO: return mspro_block_attr_show_devinfo; default: -- GitLab From 251cc9b9df065cb2c170ea45f566c0d9456186c2 Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:42 -0700 Subject: [PATCH 714/923] memstick: fix parsing of "assembly_date" attribute field Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/core/mspro_block.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index 2381c5d7275..62b913ba9b9 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -303,6 +303,20 @@ static ssize_t mspro_block_attr_show_sysinfo(struct device *dev, dev_attr); struct mspro_sys_info *x_sys = x_attr->data; ssize_t rc = 0; + int date_tz = 0, date_tz_f = 0; + + if (x_sys->assembly_date[0] > 0x80U) { + date_tz = (~x_sys->assembly_date[0]) + 1; + date_tz_f = date_tz & 3; + date_tz >>= 2; + date_tz = -date_tz; + date_tz_f *= 15; + } else if (x_sys->assembly_date[0] < 0x80U) { + date_tz = x_sys->assembly_date[0]; + date_tz_f = date_tz & 3; + date_tz >>= 2; + date_tz_f *= 15; + } rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n", x_sys->class); @@ -315,8 +329,8 @@ static ssize_t mspro_block_attr_show_sysinfo(struct device *dev, rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n", be16_to_cpu(x_sys->page_size)); rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: " - "%d %04u-%02u-%02u %02u:%02u:%02u\n", - x_sys->assembly_date[0], + "GMT%+d:%d %04u-%02u-%02u %02u:%02u:%02u\n", + date_tz, date_tz_f, be16_to_cpu(*(unsigned short *) &x_sys->assembly_date[1]), x_sys->assembly_date[3], x_sys->assembly_date[4], -- GitLab From 593672582e71a688cf8c3fc1c59ec7c44d3799e5 Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:42 -0700 Subject: [PATCH 715/923] memstick: try harder to recover from unsuccessful interface mode switch Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/core/mspro_block.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index 62b913ba9b9..1d637e4561d 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #define DRIVER_NAME "mspro_block" @@ -820,7 +821,7 @@ static int mspro_block_switch_to_parallel(struct memstick_dev *card) struct memstick_host *host = card->host; struct mspro_block_data *msb = memstick_get_drvdata(card); struct mspro_param_register param = { - .system = 0, + .system = MEMSTICK_SYS_PAR4, .data_count = 0, .data_address = 0, .tpc_param = 0 @@ -845,8 +846,24 @@ static int mspro_block_switch_to_parallel(struct memstick_dev *card) wait_for_completion(&card->mrq_complete); if (card->current_mrq.error) { - msb->system = 0x80; + msb->system = MEMSTICK_SYS_SERIAL; + host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF); + msleep(1000); + host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON); host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL); + + if (memstick_set_rw_addr(card)) + return card->current_mrq.error; + + param.system = msb->system; + + card->next_request = h_mspro_block_req_init; + msb->mrq_handler = h_mspro_block_default; + memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, + sizeof(param)); + memstick_new_req(host); + wait_for_completion(&card->mrq_complete); + return -EFAULT; } -- GitLab From 60fdd931d577fcca351930fda4cde26ce07d35af Mon Sep 17 00:00:00 2001 From: Alex Dubov Date: Mon, 10 Mar 2008 11:43:43 -0700 Subject: [PATCH 716/923] memstick: add support for JMicron jmb38x MemoryStick host controller Signed-off-by: Alex Dubov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/memstick/Kconfig | 2 +- drivers/memstick/host/Kconfig | 10 + drivers/memstick/host/Makefile | 6 +- drivers/memstick/host/jmb38x_ms.c | 945 ++++++++++++++++++++++++++++++ include/linux/pci_ids.h | 1 + 5 files changed, 960 insertions(+), 4 deletions(-) create mode 100644 drivers/memstick/host/jmb38x_ms.c diff --git a/drivers/memstick/Kconfig b/drivers/memstick/Kconfig index 1093fdb0729..f0ca41c2032 100644 --- a/drivers/memstick/Kconfig +++ b/drivers/memstick/Kconfig @@ -8,7 +8,7 @@ menuconfig MEMSTICK Sony MemoryStick is a proprietary storage/extension card protocol. If you want MemoryStick support, you should say Y here and also - to the specific driver for your MMC interface. + to the specific driver for your MemoryStick interface. if MEMSTICK diff --git a/drivers/memstick/host/Kconfig b/drivers/memstick/host/Kconfig index c002fcc3c87..4ce5c8dffb6 100644 --- a/drivers/memstick/host/Kconfig +++ b/drivers/memstick/host/Kconfig @@ -20,3 +20,13 @@ config MEMSTICK_TIFM_MS To compile this driver as a module, choose M here: the module will be called tifm_ms. +config MEMSTICK_JMICRON_38X + tristate "JMicron JMB38X MemoryStick interface support (EXPERIMENTAL)" + depends on EXPERIMENTAL && PCI + + help + Say Y here if you want to be able to access MemoryStick cards with + the JMicron(R) JMB38X MemoryStick card reader. + + To compile this driver as a module, choose M here: the + module will be called jmb38x_ms. diff --git a/drivers/memstick/host/Makefile b/drivers/memstick/host/Makefile index ee666380efa..12530e4311d 100644 --- a/drivers/memstick/host/Makefile +++ b/drivers/memstick/host/Makefile @@ -3,8 +3,8 @@ # ifeq ($(CONFIG_MEMSTICK_DEBUG),y) - EXTRA_CFLAGS += -DDEBUG + EXTRA_CFLAGS += -DDEBUG endif -obj-$(CONFIG_MEMSTICK_TIFM_MS) += tifm_ms.o - +obj-$(CONFIG_MEMSTICK_TIFM_MS) += tifm_ms.o +obj-$(CONFIG_MEMSTICK_JMICRON_38X) += jmb38x_ms.o diff --git a/drivers/memstick/host/jmb38x_ms.c b/drivers/memstick/host/jmb38x_ms.c new file mode 100644 index 00000000000..03fe8783b1e --- /dev/null +++ b/drivers/memstick/host/jmb38x_ms.c @@ -0,0 +1,945 @@ +/* + * jmb38x_ms.c - JMicron jmb38x MemoryStick card reader + * + * Copyright (C) 2008 Alex Dubov + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include + +#define DRIVER_NAME "jmb38x_ms" + +static int no_dma; +module_param(no_dma, bool, 0644); + +enum { + DMA_ADDRESS = 0x00, + BLOCK = 0x04, + DMA_CONTROL = 0x08, + TPC_P0 = 0x0c, + TPC_P1 = 0x10, + TPC = 0x14, + HOST_CONTROL = 0x18, + DATA = 0x1c, + STATUS = 0x20, + INT_STATUS = 0x24, + INT_STATUS_ENABLE = 0x28, + INT_SIGNAL_ENABLE = 0x2c, + TIMER = 0x30, + TIMER_CONTROL = 0x34, + PAD_OUTPUT_ENABLE = 0x38, + PAD_PU_PD = 0x3c, + CLOCK_DELAY = 0x40, + ADMA_ADDRESS = 0x44, + CLOCK_CONTROL = 0x48, + LED_CONTROL = 0x4c, + VERSION = 0x50 +}; + +struct jmb38x_ms_host { + struct jmb38x_ms *chip; + void __iomem *addr; + spinlock_t lock; + int id; + char host_id[DEVICE_ID_SIZE]; + int irq; + unsigned int block_pos; + unsigned long timeout_jiffies; + struct timer_list timer; + struct memstick_request *req; + unsigned char eject:1, + use_dma:1; + unsigned char cmd_flags; + unsigned char io_pos; + unsigned int io_word[2]; +}; + +struct jmb38x_ms { + struct pci_dev *pdev; + int host_cnt; + struct memstick_host *hosts[]; +}; + +#define BLOCK_COUNT_MASK 0xffff0000 +#define BLOCK_SIZE_MASK 0x00000fff + +#define DMA_CONTROL_ENABLE 0x00000001 + +#define TPC_DATA_SEL 0x00008000 +#define TPC_DIR 0x00004000 +#define TPC_WAIT_INT 0x00002000 +#define TPC_GET_INT 0x00000800 +#define TPC_CODE_SZ_MASK 0x00000700 +#define TPC_DATA_SZ_MASK 0x00000007 + +#define HOST_CONTROL_RESET_REQ 0x00008000 +#define HOST_CONTROL_REI 0x00004000 +#define HOST_CONTROL_LED 0x00000400 +#define HOST_CONTROL_FAST_CLK 0x00000200 +#define HOST_CONTROL_RESET 0x00000100 +#define HOST_CONTROL_POWER_EN 0x00000080 +#define HOST_CONTROL_CLOCK_EN 0x00000040 +#define HOST_CONTROL_IF_SHIFT 4 + +#define HOST_CONTROL_IF_SERIAL 0x0 +#define HOST_CONTROL_IF_PAR4 0x1 +#define HOST_CONTROL_IF_PAR8 0x3 + +#define STATUS_HAS_MEDIA 0x00000400 +#define STATUS_FIFO_EMPTY 0x00000200 +#define STATUS_FIFO_FULL 0x00000100 + +#define INT_STATUS_TPC_ERR 0x00080000 +#define INT_STATUS_CRC_ERR 0x00040000 +#define INT_STATUS_TIMER_TO 0x00020000 +#define INT_STATUS_HSK_TO 0x00010000 +#define INT_STATUS_ANY_ERR 0x00008000 +#define INT_STATUS_FIFO_WRDY 0x00000080 +#define INT_STATUS_FIFO_RRDY 0x00000040 +#define INT_STATUS_MEDIA_OUT 0x00000010 +#define INT_STATUS_MEDIA_IN 0x00000008 +#define INT_STATUS_DMA_BOUNDARY 0x00000004 +#define INT_STATUS_EOTRAN 0x00000002 +#define INT_STATUS_EOTPC 0x00000001 + +#define INT_STATUS_ALL 0x000f801f + +#define PAD_OUTPUT_ENABLE_MS 0x0F3F + +#define PAD_PU_PD_OFF 0x7FFF0000 +#define PAD_PU_PD_ON_MS_SOCK0 0x5f8f0000 +#define PAD_PU_PD_ON_MS_SOCK1 0x0f0f0000 + +enum { + CMD_READY = 0x01, + FIFO_READY = 0x02, + REG_DATA = 0x04, + AUTO_GET_INT = 0x08 +}; + +static unsigned int jmb38x_ms_read_data(struct jmb38x_ms_host *host, + unsigned char *buf, unsigned int length) +{ + unsigned int off = 0; + + while (host->io_pos && length) { + buf[off++] = host->io_word[0] & 0xff; + host->io_word[0] >>= 8; + length--; + host->io_pos--; + } + + if (!length) + return off; + + while (!(STATUS_FIFO_EMPTY & readl(host->addr + STATUS))) { + if (length < 4) + break; + *(unsigned int *)(buf + off) = __raw_readl(host->addr + DATA); + length -= 4; + off += 4; + } + + if (length + && !(STATUS_FIFO_EMPTY & readl(host->addr + STATUS))) { + host->io_word[0] = readl(host->addr + DATA); + for (host->io_pos = 4; host->io_pos; --host->io_pos) { + buf[off++] = host->io_word[0] & 0xff; + host->io_word[0] >>= 8; + length--; + if (!length) + break; + } + } + + return off; +} + +static unsigned int jmb38x_ms_read_reg_data(struct jmb38x_ms_host *host, + unsigned char *buf, + unsigned int length) +{ + unsigned int off = 0; + + while (host->io_pos > 4 && length) { + buf[off++] = host->io_word[0] & 0xff; + host->io_word[0] >>= 8; + length--; + host->io_pos--; + } + + if (!length) + return off; + + while (host->io_pos && length) { + buf[off++] = host->io_word[1] & 0xff; + host->io_word[1] >>= 8; + length--; + host->io_pos--; + } + + return off; +} + +static unsigned int jmb38x_ms_write_data(struct jmb38x_ms_host *host, + unsigned char *buf, + unsigned int length) +{ + unsigned int off = 0; + + if (host->io_pos) { + while (host->io_pos < 4 && length) { + host->io_word[0] |= buf[off++] << (host->io_pos * 8); + host->io_pos++; + length--; + } + } + + if (host->io_pos == 4 + && !(STATUS_FIFO_FULL & readl(host->addr + STATUS))) { + writel(host->io_word[0], host->addr + DATA); + host->io_pos = 0; + host->io_word[0] = 0; + } else if (host->io_pos) { + return off; + } + + if (!length) + return off; + + while (!(STATUS_FIFO_FULL & readl(host->addr + STATUS))) { + if (length < 4) + break; + + __raw_writel(*(unsigned int *)(buf + off), + host->addr + DATA); + length -= 4; + off += 4; + } + + switch (length) { + case 3: + host->io_word[0] |= buf[off + 2] << 16; + host->io_pos++; + case 2: + host->io_word[0] |= buf[off + 1] << 8; + host->io_pos++; + case 1: + host->io_word[0] |= buf[off]; + host->io_pos++; + } + + off += host->io_pos; + + return off; +} + +static unsigned int jmb38x_ms_write_reg_data(struct jmb38x_ms_host *host, + unsigned char *buf, + unsigned int length) +{ + unsigned int off = 0; + + while (host->io_pos < 4 && length) { + host->io_word[0] &= ~(0xff << (host->io_pos * 8)); + host->io_word[0] |= buf[off++] << (host->io_pos * 8); + host->io_pos++; + length--; + } + + if (!length) + return off; + + while (host->io_pos < 8 && length) { + host->io_word[1] &= ~(0xff << (host->io_pos * 8)); + host->io_word[1] |= buf[off++] << (host->io_pos * 8); + host->io_pos++; + length--; + } + + return off; +} + +static int jmb38x_ms_transfer_data(struct jmb38x_ms_host *host) +{ + unsigned int length; + unsigned int off; + unsigned int t_size, p_off, p_cnt; + unsigned char *buf; + struct page *pg; + unsigned long flags = 0; + + if (host->req->long_data) { + length = host->req->sg.length - host->block_pos; + off = host->req->sg.offset + host->block_pos; + } else { + length = host->req->data_len - host->block_pos; + off = 0; + } + + while (length) { + if (host->req->long_data) { + pg = nth_page(sg_page(&host->req->sg), + off >> PAGE_SHIFT); + p_off = offset_in_page(off); + p_cnt = PAGE_SIZE - p_off; + p_cnt = min(p_cnt, length); + + local_irq_save(flags); + buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + p_off; + } else { + buf = host->req->data + host->block_pos; + p_cnt = host->req->data_len - host->block_pos; + } + + if (host->req->data_dir == WRITE) + t_size = !(host->cmd_flags & REG_DATA) + ? jmb38x_ms_write_data(host, buf, p_cnt) + : jmb38x_ms_write_reg_data(host, buf, p_cnt); + else + t_size = !(host->cmd_flags & REG_DATA) + ? jmb38x_ms_read_data(host, buf, p_cnt) + : jmb38x_ms_read_reg_data(host, buf, p_cnt); + + if (host->req->long_data) { + kunmap_atomic(buf - p_off, KM_BIO_SRC_IRQ); + local_irq_restore(flags); + } + + if (!t_size) + break; + host->block_pos += t_size; + length -= t_size; + off += t_size; + } + + if (!length && host->req->data_dir == WRITE) { + if (host->cmd_flags & REG_DATA) { + writel(host->io_word[0], host->addr + TPC_P0); + writel(host->io_word[1], host->addr + TPC_P1); + } else if (host->io_pos) { + writel(host->io_word[0], host->addr + DATA); + } + } + + return length; +} + +static int jmb38x_ms_issue_cmd(struct memstick_host *msh) +{ + struct jmb38x_ms_host *host = memstick_priv(msh); + unsigned char *data; + unsigned int data_len, cmd, t_val; + + if (!(STATUS_HAS_MEDIA & readl(host->addr + STATUS))) { + dev_dbg(msh->cdev.dev, "no media status\n"); + host->req->error = -ETIME; + return host->req->error; + } + + dev_dbg(msh->cdev.dev, "control %08x\n", + readl(host->addr + HOST_CONTROL)); + dev_dbg(msh->cdev.dev, "status %08x\n", readl(host->addr + INT_STATUS)); + dev_dbg(msh->cdev.dev, "hstatus %08x\n", readl(host->addr + STATUS)); + + host->cmd_flags = 0; + host->block_pos = 0; + host->io_pos = 0; + host->io_word[0] = 0; + host->io_word[1] = 0; + + cmd = host->req->tpc << 16; + cmd |= TPC_DATA_SEL; + + if (host->req->data_dir == READ) + cmd |= TPC_DIR; + if (host->req->need_card_int) + cmd |= TPC_WAIT_INT; + if (host->req->get_int_reg) + cmd |= TPC_GET_INT; + + data = host->req->data; + + host->use_dma = !no_dma; + + if (host->req->long_data) { + data_len = host->req->sg.length; + } else { + data_len = host->req->data_len; + host->use_dma = 0; + } + + if (data_len <= 8) { + cmd &= ~(TPC_DATA_SEL | 0xf); + host->cmd_flags |= REG_DATA; + cmd |= data_len & 0xf; + host->use_dma = 0; + } + + if (host->use_dma) { + if (1 != pci_map_sg(host->chip->pdev, &host->req->sg, 1, + host->req->data_dir == READ + ? PCI_DMA_FROMDEVICE + : PCI_DMA_TODEVICE)) { + host->req->error = -ENOMEM; + return host->req->error; + } + data_len = sg_dma_len(&host->req->sg); + writel(sg_dma_address(&host->req->sg), + host->addr + DMA_ADDRESS); + writel(((1 << 16) & BLOCK_COUNT_MASK) + | (data_len & BLOCK_SIZE_MASK), + host->addr + BLOCK); + writel(DMA_CONTROL_ENABLE, host->addr + DMA_CONTROL); + } else if (!(host->cmd_flags & REG_DATA)) { + writel(((1 << 16) & BLOCK_COUNT_MASK) + | (data_len & BLOCK_SIZE_MASK), + host->addr + BLOCK); + t_val = readl(host->addr + INT_STATUS_ENABLE); + t_val |= host->req->data_dir == READ + ? INT_STATUS_FIFO_RRDY + : INT_STATUS_FIFO_WRDY; + + writel(t_val, host->addr + INT_STATUS_ENABLE); + writel(t_val, host->addr + INT_SIGNAL_ENABLE); + } else { + cmd &= ~(TPC_DATA_SEL | 0xf); + host->cmd_flags |= REG_DATA; + cmd |= data_len & 0xf; + + if (host->req->data_dir == WRITE) { + jmb38x_ms_transfer_data(host); + writel(host->io_word[0], host->addr + TPC_P0); + writel(host->io_word[1], host->addr + TPC_P1); + } + } + + mod_timer(&host->timer, jiffies + host->timeout_jiffies); + writel(HOST_CONTROL_LED | readl(host->addr + HOST_CONTROL), + host->addr + HOST_CONTROL); + host->req->error = 0; + + writel(cmd, host->addr + TPC); + dev_dbg(msh->cdev.dev, "executing TPC %08x, len %x\n", cmd, data_len); + + return 0; +} + +static void jmb38x_ms_complete_cmd(struct memstick_host *msh, int last) +{ + struct jmb38x_ms_host *host = memstick_priv(msh); + unsigned int t_val = 0; + int rc; + + del_timer(&host->timer); + + dev_dbg(msh->cdev.dev, "c control %08x\n", + readl(host->addr + HOST_CONTROL)); + dev_dbg(msh->cdev.dev, "c status %08x\n", + readl(host->addr + INT_STATUS)); + dev_dbg(msh->cdev.dev, "c hstatus %08x\n", readl(host->addr + STATUS)); + + if (host->req->get_int_reg) { + t_val = readl(host->addr + TPC_P0); + host->req->int_reg = (t_val & 0xff); + } + + if (host->use_dma) { + writel(0, host->addr + DMA_CONTROL); + pci_unmap_sg(host->chip->pdev, &host->req->sg, 1, + host->req->data_dir == READ + ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE); + } else { + t_val = readl(host->addr + INT_STATUS_ENABLE); + if (host->req->data_dir == READ) + t_val &= ~INT_STATUS_FIFO_RRDY; + else + t_val &= ~INT_STATUS_FIFO_WRDY; + + writel(t_val, host->addr + INT_STATUS_ENABLE); + writel(t_val, host->addr + INT_SIGNAL_ENABLE); + } + + writel((~HOST_CONTROL_LED) & readl(host->addr + HOST_CONTROL), + host->addr + HOST_CONTROL); + + if (!last) { + do { + rc = memstick_next_req(msh, &host->req); + } while (!rc && jmb38x_ms_issue_cmd(msh)); + } else { + do { + rc = memstick_next_req(msh, &host->req); + if (!rc) + host->req->error = -ETIME; + } while (!rc); + } +} + +static irqreturn_t jmb38x_ms_isr(int irq, void *dev_id) +{ + struct memstick_host *msh = dev_id; + struct jmb38x_ms_host *host = memstick_priv(msh); + unsigned int irq_status; + + spin_lock(&host->lock); + irq_status = readl(host->addr + INT_STATUS); + dev_dbg(&host->chip->pdev->dev, "irq_status = %08x\n", irq_status); + if (irq_status == 0 || irq_status == (~0)) { + spin_unlock(&host->lock); + return IRQ_NONE; + } + + if (host->req) { + if (irq_status & INT_STATUS_ANY_ERR) { + if (irq_status & INT_STATUS_CRC_ERR) + host->req->error = -EILSEQ; + else + host->req->error = -ETIME; + } else { + if (host->use_dma) { + if (irq_status & INT_STATUS_EOTRAN) + host->cmd_flags |= FIFO_READY; + } else { + if (irq_status & (INT_STATUS_FIFO_RRDY + | INT_STATUS_FIFO_WRDY)) + jmb38x_ms_transfer_data(host); + + if (irq_status & INT_STATUS_EOTRAN) { + jmb38x_ms_transfer_data(host); + host->cmd_flags |= FIFO_READY; + } + } + + if (irq_status & INT_STATUS_EOTPC) { + host->cmd_flags |= CMD_READY; + if (host->cmd_flags & REG_DATA) { + if (host->req->data_dir == READ) { + host->io_word[0] + = readl(host->addr + + TPC_P0); + host->io_word[1] + = readl(host->addr + + TPC_P1); + host->io_pos = 8; + + jmb38x_ms_transfer_data(host); + } + host->cmd_flags |= FIFO_READY; + } + } + } + } + + if (irq_status & (INT_STATUS_MEDIA_IN | INT_STATUS_MEDIA_OUT)) { + dev_dbg(&host->chip->pdev->dev, "media changed\n"); + memstick_detect_change(msh); + } + + writel(irq_status, host->addr + INT_STATUS); + + if (host->req + && (((host->cmd_flags & CMD_READY) + && (host->cmd_flags & FIFO_READY)) + || host->req->error)) + jmb38x_ms_complete_cmd(msh, 0); + + spin_unlock(&host->lock); + return IRQ_HANDLED; +} + +static void jmb38x_ms_abort(unsigned long data) +{ + struct memstick_host *msh = (struct memstick_host *)data; + struct jmb38x_ms_host *host = memstick_priv(msh); + unsigned long flags; + + dev_dbg(&host->chip->pdev->dev, "abort\n"); + spin_lock_irqsave(&host->lock, flags); + if (host->req) { + host->req->error = -ETIME; + jmb38x_ms_complete_cmd(msh, 0); + } + spin_unlock_irqrestore(&host->lock, flags); +} + +static void jmb38x_ms_request(struct memstick_host *msh) +{ + struct jmb38x_ms_host *host = memstick_priv(msh); + unsigned long flags; + int rc; + + spin_lock_irqsave(&host->lock, flags); + if (host->req) { + spin_unlock_irqrestore(&host->lock, flags); + BUG(); + return; + } + + do { + rc = memstick_next_req(msh, &host->req); + } while (!rc && jmb38x_ms_issue_cmd(msh)); + spin_unlock_irqrestore(&host->lock, flags); +} + +static void jmb38x_ms_reset(struct jmb38x_ms_host *host) +{ + unsigned int host_ctl = readl(host->addr + HOST_CONTROL); + + writel(host_ctl | HOST_CONTROL_RESET_REQ | HOST_CONTROL_RESET, + host->addr + HOST_CONTROL); + + while (HOST_CONTROL_RESET_REQ + & (host_ctl = readl(host->addr + HOST_CONTROL))) { + ndelay(100); + dev_dbg(&host->chip->pdev->dev, "reset\n"); + } + + writel(INT_STATUS_ALL, host->addr + INT_STATUS_ENABLE); + writel(INT_STATUS_ALL, host->addr + INT_SIGNAL_ENABLE); + + dev_dbg(&host->chip->pdev->dev, "reset\n"); +} + +static void jmb38x_ms_set_param(struct memstick_host *msh, + enum memstick_param param, + int value) +{ + struct jmb38x_ms_host *host = memstick_priv(msh); + unsigned int host_ctl; + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + + switch (param) { + case MEMSTICK_POWER: + if (value == MEMSTICK_POWER_ON) { + jmb38x_ms_reset(host); + + writel(host->id ? PAD_PU_PD_ON_MS_SOCK1 + : PAD_PU_PD_ON_MS_SOCK0, + host->addr + PAD_PU_PD); + + writel(PAD_OUTPUT_ENABLE_MS, + host->addr + PAD_OUTPUT_ENABLE); + + host_ctl = readl(host->addr + HOST_CONTROL); + host_ctl |= 7; + writel(host_ctl | (HOST_CONTROL_POWER_EN + | HOST_CONTROL_CLOCK_EN), + host->addr + HOST_CONTROL); + + dev_dbg(&host->chip->pdev->dev, "power on\n"); + } else if (value == MEMSTICK_POWER_OFF) { + writel(readl(host->addr + HOST_CONTROL) + & ~(HOST_CONTROL_POWER_EN + | HOST_CONTROL_CLOCK_EN), + host->addr + HOST_CONTROL); + writel(0, host->addr + PAD_OUTPUT_ENABLE); + writel(PAD_PU_PD_OFF, host->addr + PAD_PU_PD); + dev_dbg(&host->chip->pdev->dev, "power off\n"); + } + break; + case MEMSTICK_INTERFACE: + /* jmb38x_ms_reset(host); */ + + host_ctl = readl(host->addr + HOST_CONTROL); + host_ctl &= ~(3 << HOST_CONTROL_IF_SHIFT); + /* host_ctl |= 7; */ + + if (value == MEMSTICK_SERIAL) { + host_ctl &= ~HOST_CONTROL_FAST_CLK; + host_ctl |= HOST_CONTROL_IF_SERIAL + << HOST_CONTROL_IF_SHIFT; + host_ctl |= HOST_CONTROL_REI; + writel(0, host->addr + CLOCK_DELAY); + } else if (value == MEMSTICK_PAR4) { + host_ctl |= HOST_CONTROL_FAST_CLK; + host_ctl |= HOST_CONTROL_IF_PAR4 + << HOST_CONTROL_IF_SHIFT; + host_ctl &= ~HOST_CONTROL_REI; + writel(4, host->addr + CLOCK_DELAY); + } else if (value == MEMSTICK_PAR8) { + host_ctl |= HOST_CONTROL_FAST_CLK; + host_ctl |= HOST_CONTROL_IF_PAR8 + << HOST_CONTROL_IF_SHIFT; + host_ctl &= ~HOST_CONTROL_REI; + writel(4, host->addr + CLOCK_DELAY); + } + writel(host_ctl, host->addr + HOST_CONTROL); + break; + }; + + spin_unlock_irqrestore(&host->lock, flags); +} + +#ifdef CONFIG_PM + +static int jmb38x_ms_suspend(struct pci_dev *dev, pm_message_t state) +{ + struct jmb38x_ms *jm = pci_get_drvdata(dev); + int cnt; + + for (cnt = 0; cnt < jm->host_cnt; ++cnt) { + if (!jm->hosts[cnt]) + break; + memstick_suspend_host(jm->hosts[cnt]); + } + + pci_save_state(dev); + pci_enable_wake(dev, pci_choose_state(dev, state), 0); + pci_disable_device(dev); + pci_set_power_state(dev, pci_choose_state(dev, state)); + return 0; +} + +static int jmb38x_ms_resume(struct pci_dev *dev) +{ + struct jmb38x_ms *jm = pci_get_drvdata(dev); + int rc; + + pci_set_power_state(dev, PCI_D0); + pci_restore_state(dev); + rc = pci_enable_device(dev); + if (rc) + return rc; + pci_set_master(dev); + + pci_read_config_dword(dev, 0xac, &rc); + pci_write_config_dword(dev, 0xac, rc | 0x00470000); + + for (rc = 0; rc < jm->host_cnt; ++rc) { + if (!jm->hosts[rc]) + break; + memstick_resume_host(jm->hosts[rc]); + memstick_detect_change(jm->hosts[rc]); + } + + return 0; +} + +#else + +#define jmb38x_ms_suspend NULL +#define jmb38x_ms_resume NULL + +#endif /* CONFIG_PM */ + +static int jmb38x_ms_count_slots(struct pci_dev *pdev) +{ + int cnt, rc = 0; + + for (cnt = 0; cnt < PCI_ROM_RESOURCE; ++cnt) { + if (!(IORESOURCE_MEM & pci_resource_flags(pdev, cnt))) + break; + + if (256 != pci_resource_len(pdev, cnt)) + break; + + ++rc; + } + return rc; +} + +static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt) +{ + struct memstick_host *msh; + struct jmb38x_ms_host *host; + + msh = memstick_alloc_host(sizeof(struct jmb38x_ms_host), + &jm->pdev->dev); + if (!msh) + return NULL; + + host = memstick_priv(msh); + host->chip = jm; + host->addr = ioremap(pci_resource_start(jm->pdev, cnt), + pci_resource_len(jm->pdev, cnt)); + if (!host->addr) + goto err_out_free; + + spin_lock_init(&host->lock); + host->id = cnt; + snprintf(host->host_id, DEVICE_ID_SIZE, DRIVER_NAME ":slot%d", + host->id); + host->irq = jm->pdev->irq; + host->timeout_jiffies = msecs_to_jiffies(4000); + msh->request = jmb38x_ms_request; + msh->set_param = jmb38x_ms_set_param; + /* + msh->caps = MEMSTICK_CAP_AUTO_GET_INT | MEMSTICK_CAP_PAR4 + | MEMSTICK_CAP_PAR8; + */ + msh->caps = MEMSTICK_CAP_PAR4 | MEMSTICK_CAP_PAR8; + + setup_timer(&host->timer, jmb38x_ms_abort, (unsigned long)msh); + + if (!request_irq(host->irq, jmb38x_ms_isr, IRQF_SHARED, host->host_id, + msh)) + return msh; + + iounmap(host->addr); +err_out_free: + kfree(msh); + return NULL; +} + +static void jmb38x_ms_free_host(struct memstick_host *msh) +{ + struct jmb38x_ms_host *host = memstick_priv(msh); + + free_irq(host->irq, msh); + iounmap(host->addr); + memstick_free_host(msh); +} + +static int jmb38x_ms_probe(struct pci_dev *pdev, + const struct pci_device_id *dev_id) +{ + struct jmb38x_ms *jm; + int pci_dev_busy = 0; + int rc, cnt; + + rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); + if (rc) + return rc; + + rc = pci_enable_device(pdev); + if (rc) + return rc; + + pci_set_master(pdev); + + rc = pci_request_regions(pdev, DRIVER_NAME); + if (rc) { + pci_dev_busy = 1; + goto err_out; + } + + pci_read_config_dword(pdev, 0xac, &rc); + pci_write_config_dword(pdev, 0xac, rc | 0x00470000); + + cnt = jmb38x_ms_count_slots(pdev); + if (!cnt) { + rc = -ENODEV; + pci_dev_busy = 1; + goto err_out; + } + + jm = kzalloc(sizeof(struct jmb38x_ms) + + cnt * sizeof(struct memstick_host *), GFP_KERNEL); + if (!jm) { + rc = -ENOMEM; + goto err_out_int; + } + + jm->pdev = pdev; + jm->host_cnt = cnt; + pci_set_drvdata(pdev, jm); + + for (cnt = 0; cnt < jm->host_cnt; ++cnt) { + jm->hosts[cnt] = jmb38x_ms_alloc_host(jm, cnt); + if (!jm->hosts[cnt]) + break; + + rc = memstick_add_host(jm->hosts[cnt]); + + if (rc) { + jmb38x_ms_free_host(jm->hosts[cnt]); + jm->hosts[cnt] = NULL; + break; + } + } + + if (cnt) + return 0; + + rc = -ENODEV; + + pci_set_drvdata(pdev, NULL); + kfree(jm); +err_out_int: + pci_release_regions(pdev); +err_out: + if (!pci_dev_busy) + pci_disable_device(pdev); + return rc; +} + +static void jmb38x_ms_remove(struct pci_dev *dev) +{ + struct jmb38x_ms *jm = pci_get_drvdata(dev); + struct jmb38x_ms_host *host; + int cnt; + unsigned long flags; + + for (cnt = 0; cnt < jm->host_cnt; ++cnt) { + if (!jm->hosts[cnt]) + break; + + host = memstick_priv(jm->hosts[cnt]); + + writel(0, host->addr + INT_SIGNAL_ENABLE); + writel(0, host->addr + INT_STATUS_ENABLE); + mmiowb(); + dev_dbg(&jm->pdev->dev, "interrupts off\n"); + spin_lock_irqsave(&host->lock, flags); + if (host->req) { + host->req->error = -ETIME; + jmb38x_ms_complete_cmd(jm->hosts[cnt], 1); + } + spin_unlock_irqrestore(&host->lock, flags); + + memstick_remove_host(jm->hosts[cnt]); + dev_dbg(&jm->pdev->dev, "host removed\n"); + + jmb38x_ms_free_host(jm->hosts[cnt]); + } + + pci_set_drvdata(dev, NULL); + pci_release_regions(dev); + pci_disable_device(dev); + kfree(jm); +} + +static struct pci_device_id jmb38x_ms_id_tbl [] = { + { PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_MS, PCI_ANY_ID, + PCI_ANY_ID, 0, 0, 0 }, + { } +}; + +static struct pci_driver jmb38x_ms_driver = { + .name = DRIVER_NAME, + .id_table = jmb38x_ms_id_tbl, + .probe = jmb38x_ms_probe, + .remove = jmb38x_ms_remove, + .suspend = jmb38x_ms_suspend, + .resume = jmb38x_ms_resume +}; + +static int __init jmb38x_ms_init(void) +{ + return pci_register_driver(&jmb38x_ms_driver); +} + +static void __exit jmb38x_ms_exit(void) +{ + pci_unregister_driver(&jmb38x_ms_driver); +} + +MODULE_AUTHOR("Alex Dubov"); +MODULE_DESCRIPTION("JMicron jmb38x MemoryStick driver"); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(pci, jmb38x_ms_id_tbl); + +module_init(jmb38x_ms_init); +module_exit(jmb38x_ms_exit); diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index effdb558a58..70eb3c803d4 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2184,6 +2184,7 @@ #define PCI_DEVICE_ID_JMICRON_JMB366 0x2366 #define PCI_DEVICE_ID_JMICRON_JMB368 0x2368 #define PCI_DEVICE_ID_JMICRON_JMB38X_SD 0x2381 +#define PCI_DEVICE_ID_JMICRON_JMB38X_MS 0x2383 #define PCI_VENDOR_ID_KORENIX 0x1982 #define PCI_DEVICE_ID_KORENIX_JETCARDF0 0x1600 -- GitLab From 9afa802ff568d935dab33dd207dc25d9849f35d4 Mon Sep 17 00:00:00 2001 From: Masatake YAMATO Date: Mon, 10 Mar 2008 11:43:43 -0700 Subject: [PATCH 717/923] Typo in Documentation/scheduler/sched-stats.txt I have found a very small typo in Documentation/scheduler/sched-stats.txt. See the end of this mail. Signed-off-by: Masatake YAMATO Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/scheduler/sched-stats.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/scheduler/sched-stats.txt b/Documentation/scheduler/sched-stats.txt index 442e14d35de..01e69404ee5 100644 --- a/Documentation/scheduler/sched-stats.txt +++ b/Documentation/scheduler/sched-stats.txt @@ -142,7 +142,7 @@ of idleness (idle, busy, and newly idle): /proc//schedstat ---------------- -schedstats also adds a new /proc//schedstat file to include some of the same information on a per-process level. There are three fields in this file correlating for that process to: 1) time spent on the cpu -- GitLab From 69682d852f5c94ee94e21174b3e8b719626c98db Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Mon, 10 Mar 2008 11:43:45 -0700 Subject: [PATCH 718/923] mempolicy: fix reference counting bugs Address 3 known bugs in the current memory policy reference counting method. I have a series of patches to rework the reference counting to reduce overhead in the allocation path. However, that series will require testing in -mm once I repost it. 1) alloc_page_vma() does not release the extra reference taken for vma/shared mempolicy when the mode == MPOL_INTERLEAVE. This can result in leaking mempolicy structures. This is probably occurring, but not being noticed. Fix: add the conditional release of the reference. 2) hugezonelist unconditionally releases a reference on the mempolicy when mode == MPOL_INTERLEAVE. This can result in decrementing the reference count for system default policy [should have no ill effect] or premature freeing of task policy. If this occurred, the next allocation using task mempolicy would use the freed structure and probably BUG out. Fix: add the necessary check to the release. 3) The current reference counting method assumes that vma 'get_policy()' methods automatically add an extra reference a non-NULL returned mempolicy. This is true for shmem_get_policy() used by tmpfs mappings, including regular page shm segments. However, SHM_HUGETLB shm's, backed by hugetlbfs, just use the vma policy without the extra reference. This results in freeing of the vma policy on the first allocation, with reuse of the freed mempolicy structure on subsequent allocations. Fix: Rather than add another condition to the conditional reference release, which occur in the allocation path, just add a reference when returning the vma policy in shm_get_policy() to match the assumptions. Signed-off-by: Lee Schermerhorn Cc: Greg KH Cc: Andi Kleen Cc: Christoph Lameter Cc: Mel Gorman Cc: David Rientjes Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- ipc/shm.c | 5 +++-- mm/mempolicy.c | 7 ++++++- 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/ipc/shm.c b/ipc/shm.c index c47e87278a9..cc63fae02f0 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -271,9 +271,10 @@ static struct mempolicy *shm_get_policy(struct vm_area_struct *vma, if (sfd->vm_ops->get_policy) pol = sfd->vm_ops->get_policy(vma, addr); - else if (vma->vm_policy) + else if (vma->vm_policy) { pol = vma->vm_policy; - else + mpol_get(pol); /* get_vma_policy() expects this */ + } else pol = current->mempolicy; return pol; } diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 6c7ba1a63d2..3c360112150 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1296,7 +1296,9 @@ struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr, unsigned nid; nid = interleave_nid(pol, vma, addr, HPAGE_SHIFT); - __mpol_free(pol); /* finished with pol */ + if (unlikely(pol != &default_policy && + pol != current->mempolicy)) + __mpol_free(pol); /* finished with pol */ return NODE_DATA(nid)->node_zonelists + gfp_zone(gfp_flags); } @@ -1360,6 +1362,9 @@ alloc_page_vma(gfp_t gfp, struct vm_area_struct *vma, unsigned long addr) unsigned nid; nid = interleave_nid(pol, vma, addr, PAGE_SHIFT); + if (unlikely(pol != &default_policy && + pol != current->mempolicy)) + __mpol_free(pol); /* finished with pol */ return alloc_page_interleave(gfp, 0, nid); } zl = zonelist_policy(gfp, pol); -- GitLab From 52720ae77d392d3f4c12281c37304edbc8cb51f1 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 10 Mar 2008 11:43:47 -0700 Subject: [PATCH 719/923] md: fix formatting error in /proc/mdstat If an md array is "auto-read-only", then this appears in /proc/mdstat as /dev/md0: active(auto-read-only) whereas if it is truely readonly, it appears as /dev/md0: active (read-only) The difference being a space. One program known to parse this file expects the space and gets badly confused. It will be fixed, but it would be best if what the kernel generates is more consistent too. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/md.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 827824a9f3e..ccbbf63727c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5149,7 +5149,7 @@ static int md_seq_show(struct seq_file *seq, void *v) if (mddev->ro==1) seq_printf(seq, " (read-only)"); if (mddev->ro==2) - seq_printf(seq, "(auto-read-only)"); + seq_printf(seq, " (auto-read-only)"); seq_printf(seq, " %s", mddev->pers->name); } -- GitLab From 7be3dfec4724c51e890455fe48fe188ad7c18b88 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 10 Mar 2008 11:43:48 -0700 Subject: [PATCH 720/923] md: reduce CPU wastage on idle md array with a write-intent bitmap Recent patch titled Reduce CPU wastage on idle md array with a write-intent bitmap. would sometimes leave the array with dirty bitmap bits that stay dirty. A subsequent write would sort things out so it isn't a big problem, but should be fixed nonetheless. We need to make sure that when the bitmap becomes not "allclean", the daemon_sleep really does get set to a sensible value. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/bitmap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 831aed9c56f..c14dacdacfa 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1045,7 +1045,8 @@ void bitmap_daemon_work(struct bitmap *bitmap) if (bitmap == NULL) return; if (time_before(jiffies, bitmap->daemon_lastrun + bitmap->daemon_sleep*HZ)) - return; + goto done; + bitmap->daemon_lastrun = jiffies; if (bitmap->allclean) { bitmap->mddev->thread->timeout = MAX_SCHEDULE_TIMEOUT; @@ -1142,6 +1143,7 @@ void bitmap_daemon_work(struct bitmap *bitmap) } } + done: if (bitmap->allclean == 0) bitmap->mddev->thread->timeout = bitmap->daemon_sleep * HZ; } -- GitLab From 842078054da2d754c6b998b116d7c468abbfaaca Mon Sep 17 00:00:00 2001 From: Arnaud Patard Date: Mon, 10 Mar 2008 11:43:48 -0700 Subject: [PATCH 721/923] gpio/pca953x bugfix: mark as can_sleep The pca953x driver is an I2C driver so gpio_chip->can_sleep should be set. This lets upper layers know they should use the gpio_*_cansleep() calls to access values, and may not access them from nonsleeping contexts. Signed-off-by: Arnaud Patard Signed-off-by: David Brownell Acked-by: "eric miao" Cc: Jean Delvare Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/pca953x.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index 92583cd4bff..6e72fd31184 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -184,6 +184,7 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios) gc->direction_output = pca953x_gpio_direction_output; gc->get = pca953x_gpio_get_value; gc->set = pca953x_gpio_set_value; + gc->can_sleep = 1; gc->base = chip->gpio_start; gc->ngpio = gpios; -- GitLab From 2668db9111bb1a6ab5a54f41f703179f35c7d098 Mon Sep 17 00:00:00 2001 From: Adam Litke Date: Mon, 10 Mar 2008 11:43:50 -0700 Subject: [PATCH 722/923] hugetlb: correct page count for surplus huge pages Free pages in the hugetlb pool are free and as such have a reference count of zero. Regular allocations into the pool from the buddy are "freed" into the pool which results in their page_count dropping to zero. However, surplus pages can be directly utilized by the caller without first being freed to the pool. Therefore, a call to put_page_testzero() is in order so that such a page will be handed to the caller with a correct count. This has not affected end users because the bad page count is reset before the page is handed off. However, under CONFIG_DEBUG_VM this triggers a BUG when the page count is validated. Thanks go to Mel for first spotting this issue and providing an initial fix. Signed-off-by: Adam Litke Cc: Mel Gorman Cc: Dave Hansen Cc: William Lee Irwin III Cc: Andy Whitcroft Cc: Mel Gorman Cc: David Gibson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/hugetlb.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index dcacc811e70..74c1b6b0b37 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -286,6 +286,12 @@ static struct page *alloc_buddy_huge_page(struct vm_area_struct *vma, spin_lock(&hugetlb_lock); if (page) { + /* + * This page is now managed by the hugetlb allocator and has + * no users -- drop the buddy allocator's reference. + */ + put_page_testzero(page); + VM_BUG_ON(page_count(page)); nid = page_to_nid(page); set_compound_page_dtor(page, free_huge_page); /* @@ -369,13 +375,14 @@ free: enqueue_huge_page(page); else { /* - * Decrement the refcount and free the page using its - * destructor. This must be done with hugetlb_lock + * The page has a reference count of zero already, so + * call free_huge_page directly instead of using + * put_page. This must be done with hugetlb_lock * unlocked which is safe because free_huge_page takes * hugetlb_lock before deciding how to free the page. */ spin_unlock(&hugetlb_lock); - put_page(page); + free_huge_page(page); spin_lock(&hugetlb_lock); } } -- GitLab From 6c5db22d280302c33dafb309c25bf2841fb99c37 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Mon, 10 Mar 2008 11:43:52 -0700 Subject: [PATCH 723/923] modules: fix module waiting for dependent modules' init Commit c9a3ba55 (module: wait for dependent modules doing init.) didn't quite work because the waiter holds the module lock, meaning that the state of the module it's waiting for cannot change. Fortunately, it's fairly simple to update the state outside the lock and do the wakeup. Thanks to Jan Glauber for tracking this down and testing (qdio and qeth). Signed-off-by: Rusty Russell Cc: Jan Glauber Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/module.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/kernel/module.c b/kernel/module.c index be4807fb90e..68d05d2f4d8 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2179,9 +2179,11 @@ sys_init_module(void __user *umod, return ret; } - /* Now it's a first class citizen! */ - mutex_lock(&module_mutex); + /* Now it's a first class citizen! Wake up anyone waiting for it. */ mod->state = MODULE_STATE_LIVE; + wake_up(&module_wq); + + mutex_lock(&module_mutex); /* Drop initial reference. */ module_put(mod); unwind_remove_table(mod->unwind_info, 1); @@ -2190,7 +2192,6 @@ sys_init_module(void __user *umod, mod->init_size = 0; mod->init_text_size = 0; mutex_unlock(&module_mutex); - wake_up(&module_wq); return 0; } -- GitLab From e24e2e64c468c8060bb7173abecdf11d00ed5751 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Mon, 10 Mar 2008 11:43:53 -0700 Subject: [PATCH 724/923] modules: warn about suspicious return values from module's ->init() hook Return value convention of module's init functions is 0/-E. Sometimes, e.g. during forward-porting mistakes happen and buggy module created, where result of comparison "workqueue != NULL" is propagated all the way up to sys_init_module. What happens is that some other module created workqueue in question, our module created it again and module was successfully loaded. Or it could be some other bug. Let's make such mistakes much more visible. In retrospective, such messages would noticeably shorten some of my head-scratching sessions. Note, that dump_stack() is just a way to get attention from user. Sample message: sys_init_module: 'foo'->init suspiciously returned 1, it should follow 0/-E convention sys_init_module: loading module anyway... Pid: 4223, comm: modprobe Not tainted 2.6.24-25f666300625d894ebe04bac2b4b3aadb907c861 #5 Call Trace: [] sys_init_module+0xe5/0x1d0 [] system_call_after_swapgs+0x7b/0x80 Signed-off-by: Alexey Dobriyan Cc: Rusty Russell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/module.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/kernel/module.c b/kernel/module.c index 68d05d2f4d8..5d437bffd8d 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2178,6 +2178,14 @@ sys_init_module(void __user *umod, wake_up(&module_wq); return ret; } + if (ret > 0) { + printk(KERN_WARNING "%s: '%s'->init suspiciously returned %d, " + "it should follow 0/-E convention\n" + KERN_WARNING "%s: loading module anyway...\n", + __func__, mod->name, ret, + __func__); + dump_stack(); + } /* Now it's a first class citizen! Wake up anyone waiting for it. */ mod->state = MODULE_STATE_LIVE; -- GitLab From f47831fabaf0206abc56ee5a33fd006fe29b6dc6 Mon Sep 17 00:00:00 2001 From: Thomas Bogendoerfer Date: Mon, 10 Mar 2008 11:43:54 -0700 Subject: [PATCH 725/923] i8042: use SGI_HAS_I8042 to select SGI i8042 handlinig Use SGI_HAS_I8042 to select SGI i8042 handling Signed-off-by: Thomas Bogendoerfer Cc: Dmitry Torokhov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/input/serio/i8042.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h index dd22d91f8b3..c972e5d03a3 100644 --- a/drivers/input/serio/i8042.h +++ b/drivers/input/serio/i8042.h @@ -16,7 +16,7 @@ #if defined(CONFIG_MACH_JAZZ) #include "i8042-jazzio.h" -#elif defined(CONFIG_SGI_IP22) +#elif defined(CONFIG_SGI_HAS_I8042) #include "i8042-ip22io.h" #elif defined(CONFIG_PPC) #include "i8042-ppcio.h" -- GitLab From 21bbb39c376ce6beeeb549d155f0d53dc76ed000 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 10 Mar 2008 11:43:57 -0700 Subject: [PATCH 726/923] rcu: move PREEMPT_RCU config option back under PREEMPT The original preemptible-RCU patch put the choice between classic and preemptible RCU into kernel/Kconfig.preempt, which resulted in build failures on machines not supporting CONFIG_PREEMPT. This choice was therefore moved to init/Kconfig, which worked, but placed the choice between classic and preemptible RCU at the top level, a very obtuse choice indeed. This patch changes from the Kconfig "choice" mechanism to a pair of booleans, only one of which (CONFIG_PREEMPT_RCU) is user-visible, and is located in kernel/Kconfig.preempt, where one would expect it to be. The other (CONFIG_CLASSIC_RCU) is in init/Kconfig so that it is available to all architectures, hopefully avoiding build breakage. Thanks to Roman Zippel for suggesting this approach. Signed-off-by: Paul E. McKenney Cc: Ingo Molnar Acked-by: Steven Rostedt Cc: Dipankar Sarma Cc: Josh Triplett Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: Roman Zippel Cc: Sam Ravnborg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- init/Kconfig | 34 +++------------------------------- kernel/Kconfig.preempt | 15 +++++++++++++++ 2 files changed, 18 insertions(+), 31 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index 074ac97f55e..a97924bc5b8 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -865,38 +865,10 @@ source "block/Kconfig" config PREEMPT_NOTIFIERS bool -choice - prompt "RCU implementation type:" - default CLASSIC_RCU - help - This allows you to choose either the classic RCU implementation - that is designed for best read-side performance on non-realtime - systems, or the preemptible RCU implementation for best latency - on realtime systems. Note that some kernel preemption modes - will restrict your choice. - - Select the default if you are unsure. - config CLASSIC_RCU - bool "Classic RCU" + def_bool !PREEMPT_RCU help This option selects the classic RCU implementation that is designed for best read-side performance on non-realtime - systems. - - Say Y if you are unsure. - -config PREEMPT_RCU - bool "Preemptible RCU" - depends on PREEMPT - help - This option reduces the latency of the kernel by making certain - RCU sections preemptible. Normally RCU code is non-preemptible, if - this option is selected then read-only RCU sections become - preemptible. This helps latency, but may expose bugs due to - now-naive assumptions about each RCU read-side critical section - remaining on a given CPU through its execution. - - Say N if you are unsure. - -endchoice + systems. Classic RCU is the default. Note that the + PREEMPT_RCU symbol is used to select/deselect this option. diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt index 0669b70fa6a..9fdba03dc1f 100644 --- a/kernel/Kconfig.preempt +++ b/kernel/Kconfig.preempt @@ -52,8 +52,23 @@ config PREEMPT endchoice +config PREEMPT_RCU + bool "Preemptible RCU" + depends on PREEMPT + default n + help + This option reduces the latency of the kernel by making certain + RCU sections preemptible. Normally RCU code is non-preemptible, if + this option is selected then read-only RCU sections become + preemptible. This helps latency, but may expose bugs due to + now-naive assumptions about each RCU read-side critical section + remaining on a given CPU through its execution. + + Say N if you are unsure. + config RCU_TRACE bool "Enable tracing for RCU - currently stats in debugfs" + depends on PREEMPT_RCU select DEBUG_FS default y help -- GitLab From f7009264c519603b8ec67c881bd368a56703cfc9 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Mon, 10 Mar 2008 11:43:59 -0700 Subject: [PATCH 727/923] iov_iter_advance() fix iov_iter_advance() skips over zero-length iovecs, however it does not properly terminate at the end of the iovec array. Fix this by checking against i->count before we skip a zero-length iov. The bug was reproduced with a test program that continually randomly creates iovs to writev. The fix was also verified with the same program and also it could verify that the correct data was contained in the file after each writev. Signed-off-by: Nick Piggin Tested-by: "Kevin Coffman" Cc: "Alexey Dobriyan" Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/filemap.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index ab98557e228..df343d1e634 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1742,21 +1742,27 @@ size_t iov_iter_copy_from_user(struct page *page, } EXPORT_SYMBOL(iov_iter_copy_from_user); -static void __iov_iter_advance_iov(struct iov_iter *i, size_t bytes) +void iov_iter_advance(struct iov_iter *i, size_t bytes) { + BUG_ON(i->count < bytes); + if (likely(i->nr_segs == 1)) { i->iov_offset += bytes; + i->count -= bytes; } else { const struct iovec *iov = i->iov; size_t base = i->iov_offset; /* * The !iov->iov_len check ensures we skip over unlikely - * zero-length segments. + * zero-length segments (without overruning the iovec). */ - while (bytes || !iov->iov_len) { - int copy = min(bytes, iov->iov_len - base); + while (bytes || unlikely(!iov->iov_len && i->count)) { + int copy; + copy = min(bytes, iov->iov_len - base); + BUG_ON(!i->count || i->count < copy); + i->count -= copy; bytes -= copy; base += copy; if (iov->iov_len == base) { @@ -1768,14 +1774,6 @@ static void __iov_iter_advance_iov(struct iov_iter *i, size_t bytes) i->iov_offset = base; } } - -void iov_iter_advance(struct iov_iter *i, size_t bytes) -{ - BUG_ON(i->count < bytes); - - __iov_iter_advance_iov(i, bytes); - i->count -= bytes; -} EXPORT_SYMBOL(iov_iter_advance); /* -- GitLab From 1039edc98a80aece735b0c6d8b4e5f9dcec2cc32 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Mon, 10 Mar 2008 11:44:00 -0700 Subject: [PATCH 728/923] mbxfb: fix incorrect argument type Fix wrong pointer type passed into the dev_dbg() function. Signed-off-by: Krzysztof Helt Acked-by: Mike Rapoport Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/mbx/mbxfb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/mbx/mbxfb.c b/drivers/video/mbx/mbxfb.c index 80cd117ca65..01f77bcc68f 100644 --- a/drivers/video/mbx/mbxfb.c +++ b/drivers/video/mbx/mbxfb.c @@ -889,7 +889,7 @@ static int __devinit mbxfb_probe(struct platform_device *dev) struct mbxfb_info *mfbi; struct mbxfb_platform_data *pdata; - dev_dbg(dev, "mbxfb_probe\n"); + dev_dbg(&dev->dev, "mbxfb_probe\n"); pdata = dev->dev.platform_data; if (!pdata) { -- GitLab From 62347218243179a6ab03fe9f965a5819c4714bf8 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Mon, 10 Mar 2008 11:44:01 -0700 Subject: [PATCH 729/923] stifb: fix crash A1439A CRX (Rattler) graphics card Fix kernel crash when stifb driver is used with a A1439A CRX (Rattler) graphics card. (Reference: http://thread.gmane.org/gmane.linux.ports.hppa/1834) Signed-off-by: Helge Deller Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/stifb.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c index e7c8db2eb49..f98be301140 100644 --- a/drivers/video/stifb.c +++ b/drivers/video/stifb.c @@ -505,16 +505,24 @@ ngleSetupAttrPlanes(struct stifb_info *fb, int BufferNumber) static void rattlerSetupPlanes(struct stifb_info *fb) { + int saved_id, y; + + /* Write RAMDAC pixel read mask register so all overlay + * planes are display-enabled. (CRX24 uses Bt462 pixel + * read mask register for overlay planes, not image planes). + */ CRX24_SETUP_RAMDAC(fb); - /* replacement for: SETUP_FB(fb, CRX24_OVERLAY_PLANES); */ - WRITE_WORD(0x83000300, fb, REG_14); - SETUP_HW(fb); - WRITE_BYTE(1, fb, REG_16b1); + /* change fb->id temporarily to fool SETUP_FB() */ + saved_id = fb->id; + fb->id = CRX24_OVERLAY_PLANES; + SETUP_FB(fb); + fb->id = saved_id; + + for (y = 0; y < fb->info.var.yres; ++y) + memset(fb->info.screen_base + y * fb->info.fix.line_length, + 0xff, fb->info.var.xres * fb->info.var.bits_per_pixel/8); - fb_memset((void*)fb->info.fix.smem_start, 0xff, - fb->info.var.yres*fb->info.fix.line_length); - CRX24_SET_OVLY_MASK(fb); SETUP_FB(fb); } -- GitLab From fdcc53587fd2754ba87b0607b3f889520178a7af Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 10 Mar 2008 11:44:02 -0700 Subject: [PATCH 730/923] BF54x LQ043 Framebuffer driver: fix bug NULL for gpio_request label is not allowed Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/bf54x-lq043fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c index 0ce791e6f79..ace5b3f3cde 100644 --- a/drivers/video/bf54x-lq043fb.c +++ b/drivers/video/bf54x-lq043fb.c @@ -241,7 +241,7 @@ static int request_ports(struct bfin_bf54xfb_info *fbi) u16 eppi_req_18[] = EPPI0_18; u16 disp = fbi->mach_info->disp; - if (gpio_request(disp, NULL)) { + if (gpio_request(disp, DRIVER_NAME)) { printk(KERN_ERR "Requesting GPIO %d faild\n", disp); return -EFAULT; } -- GitLab From b3544ea97041d86ed78e5889724ca784042178f3 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Mon, 10 Mar 2008 11:44:03 -0700 Subject: [PATCH 731/923] BF54x LQ043 Framebuffer driver: fix bug lcd_device_register API breakage Signed-off-by: Bryan Wu Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/bf54x-lq043fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c index ace5b3f3cde..836746fb9a5 100644 --- a/drivers/video/bf54x-lq043fb.c +++ b/drivers/video/bf54x-lq043fb.c @@ -672,7 +672,7 @@ static int __init bfin_bf54x_probe(struct platform_device *pdev) &bfin_lq043fb_bl_ops); bl_dev->props.max_brightness = 255; - lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops); + lcd_dev = lcd_device_register(DRIVER_NAME, &pdev->dev, NULL, &bfin_lcd_ops); lcd_dev->props.max_contrast = 255, printk(KERN_INFO "Done.\n"); #endif -- GitLab From 5e9e4ad0a55b4dddb770ffac9322c460bd3c4a3f Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 10 Mar 2008 11:44:03 -0700 Subject: [PATCH 732/923] BF54x LQ043 Framebuffer driver: Update copyright on previously modified files Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/bf54x-lq043fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c index 836746fb9a5..986a550c043 100644 --- a/drivers/video/bf54x-lq043fb.c +++ b/drivers/video/bf54x-lq043fb.c @@ -8,7 +8,7 @@ * * * Modified: - * Copyright 2004-2007 Analog Devices Inc. + * Copyright 2007-2008 Analog Devices Inc. * * Bugs: Enter bugs at http://blackfin.uclinux.org/ * -- GitLab From 99eeed47a1ee26fbce49c878788a6882bf90d8f2 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 10 Mar 2008 11:44:04 -0700 Subject: [PATCH 733/923] fbdev: add BF52x EZkit Display driver Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu Cc: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/Kconfig | 13 + drivers/video/Makefile | 1 + drivers/video/bfin-t350mcqb-fb.c | 685 +++++++++++++++++++++++++++++++ 3 files changed, 699 insertions(+) create mode 100644 drivers/video/bfin-t350mcqb-fb.c diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 758435f8a6f..e0b0580705e 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -553,6 +553,19 @@ config FB_BF54X_LQ043 help This is the framebuffer device driver for a SHARP LQ043T1DG01 TFT LCD +config FB_BFIN_T350MCQB + tristate "Varitronix COG-T350MCQB TFT LCD display (BF527 EZKIT)" + depends on FB && BLACKFIN + select BFIN_GPTIMERS + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + This is the framebuffer device driver for a Varitronix VL-PS-COG-T350MCQB-01 display TFT LCD + This display is a QVGA 320x240 24-bit RGB display interfaced by an 8-bit wide PPI + It uses PPI[0..7] PPI_FS1, PPI_FS2 and PPI_CLK. + + config FB_STI tristate "HP STI frame buffer device support" depends on FB && PARISC diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 83e02b3429b..03371c78903 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -122,6 +122,7 @@ obj-$(CONFIG_FB_EFI) += efifb.o obj-$(CONFIG_FB_VGA16) += vga16fb.o obj-$(CONFIG_FB_OF) += offb.o obj-$(CONFIG_FB_BF54X_LQ043) += bf54x-lq043fb.o +obj-$(CONFIG_FB_BFIN_T350MCQB) += bfin-t350mcqb-fb.o # the test framebuffer is last obj-$(CONFIG_FB_VIRTUAL) += vfb.o diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c new file mode 100644 index 00000000000..a2bb2de9e02 --- /dev/null +++ b/drivers/video/bfin-t350mcqb-fb.c @@ -0,0 +1,685 @@ +/* + * File: drivers/video/bfin-t350mcqb-fb.c + * Based on: + * Author: Michael Hennerich + * + * Created: + * Description: Blackfin LCD Framebufer driver + * + * + * Modified: + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#define NO_BL_SUPPORT + +#define LCD_X_RES 320 /* Horizontal Resolution */ +#define LCD_Y_RES 240 /* Vertical Resolution */ +#define LCD_BPP 24 /* Bit Per Pixel */ + +#define DMA_BUS_SIZE 16 +#define LCD_CLK (12*1000*1000) /* 12MHz */ + +#define CLOCKS_PER_PIX 3 + + /* + * HS and VS timing parameters (all in number of PPI clk ticks) + */ + +#define U_LINE 1 /* Blanking Lines */ + +#define H_ACTPIX (LCD_X_RES * CLOCKS_PER_PIX) /* active horizontal pixel */ +#define H_PERIOD (408 * CLOCKS_PER_PIX) /* HS period */ +#define H_PULSE 90 /* HS pulse width */ +#define H_START 204 /* first valid pixel */ + +#define V_LINES (LCD_Y_RES + U_LINE) /* total vertical lines */ +#define V_PULSE (3 * H_PERIOD) /* VS pulse width (1-5 H_PERIODs) */ +#define V_PERIOD (H_PERIOD * V_LINES) /* VS period */ + +#define ACTIVE_VIDEO_MEM_OFFSET (U_LINE * H_ACTPIX) + +#define BFIN_LCD_NBR_PALETTE_ENTRIES 256 + +#define DRIVER_NAME "bfin-t350mcqb" +static char driver_name[] = DRIVER_NAME; + +struct bfin_t350mcqbfb_info { + struct fb_info *fb; + struct device *dev; + unsigned char *fb_buffer; /* RGB Buffer */ + dma_addr_t dma_handle; + int lq043_mmap; + int lq043_open_cnt; + int irq; + spinlock_t lock; /* lock */ +}; + +static int nocursor; +module_param(nocursor, int, 0644); +MODULE_PARM_DESC(nocursor, "cursor enable/disable"); + +#define PPI_TX_MODE 0x2 +#define PPI_XFER_TYPE_11 0xC +#define PPI_PORT_CFG_01 0x10 +#define PPI_PACK_EN 0x80 +#define PPI_POLS_1 0x8000 + +static void bfin_t350mcqb_config_ppi(struct bfin_t350mcqbfb_info *fbi) +{ + bfin_write_PPI_DELAY(H_START); + bfin_write_PPI_COUNT(H_ACTPIX-1); + bfin_write_PPI_FRAME(V_LINES); + + bfin_write_PPI_CONTROL(PPI_TX_MODE | /* output mode , PORT_DIR */ + PPI_XFER_TYPE_11 | /* sync mode XFR_TYPE */ + PPI_PORT_CFG_01 | /* two frame sync PORT_CFG */ + PPI_PACK_EN | /* packing enabled PACK_EN */ + PPI_POLS_1); /* faling edge syncs POLS */ +} + +static inline void bfin_t350mcqb_disable_ppi(void) +{ + bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() & ~PORT_EN); +} + +static inline void bfin_t350mcqb_enable_ppi(void) +{ + bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() | PORT_EN); +} + +static void bfin_t350mcqb_start_timers(void) +{ + unsigned long flags; + + local_irq_save(flags); + enable_gptimers(TIMER1bit); + enable_gptimers(TIMER0bit); + local_irq_restore(flags); +} + +static void bfin_t350mcqb_stop_timers(void) +{ + disable_gptimers(TIMER0bit | TIMER1bit); + + set_gptimer_status(0, TIMER_STATUS_TRUN0 | TIMER_STATUS_TRUN1 | + TIMER_STATUS_TIMIL0 | TIMER_STATUS_TIMIL1 | + TIMER_STATUS_TOVF0 | TIMER_STATUS_TOVF1); + +} + +static void bfin_t350mcqb_init_timers(void) +{ + + bfin_t350mcqb_stop_timers(); + + set_gptimer_period(TIMER0_id, H_PERIOD); + set_gptimer_pwidth(TIMER0_id, H_PULSE); + set_gptimer_config(TIMER0_id, TIMER_MODE_PWM | TIMER_PERIOD_CNT | + TIMER_TIN_SEL | TIMER_CLK_SEL| + TIMER_EMU_RUN); + + set_gptimer_period(TIMER1_id, V_PERIOD); + set_gptimer_pwidth(TIMER1_id, V_PULSE); + set_gptimer_config(TIMER1_id, TIMER_MODE_PWM | TIMER_PERIOD_CNT | + TIMER_TIN_SEL | TIMER_CLK_SEL | + TIMER_EMU_RUN); + +} + +static void bfin_t350mcqb_config_dma(struct bfin_t350mcqbfb_info *fbi) +{ + + set_dma_config(CH_PPI, + set_bfin_dma_config(DIR_READ, DMA_FLOW_AUTO, + INTR_DISABLE, DIMENSION_2D, + DATA_SIZE_16, + DMA_NOSYNC_KEEP_DMA_BUF)); + set_dma_x_count(CH_PPI, (LCD_X_RES * LCD_BPP) / DMA_BUS_SIZE); + set_dma_x_modify(CH_PPI, DMA_BUS_SIZE / 8); + set_dma_y_count(CH_PPI, V_LINES); + + set_dma_y_modify(CH_PPI, DMA_BUS_SIZE / 8); + set_dma_start_addr(CH_PPI, (unsigned long)fbi->fb_buffer); + +} + +static int bfin_t350mcqb_request_ports(int action) +{ + u16 ppi0_req_8[] = {P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2, + P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, + P_PPI0_D3, P_PPI0_D4, P_PPI0_D5, + P_PPI0_D6, P_PPI0_D7, 0}; + + if (action) { + if (peripheral_request_list(ppi0_req_8, DRIVER_NAME)) { + printk(KERN_ERR "Requesting Peripherals faild\n"); + return -EFAULT; + } + } else + peripheral_free_list(ppi0_req_8); + + return 0; +} + +static int bfin_t350mcqb_fb_open(struct fb_info *info, int user) +{ + struct bfin_t350mcqbfb_info *fbi = info->par; + + spin_lock(&fbi->lock); + fbi->lq043_open_cnt++; + + if (fbi->lq043_open_cnt <= 1) { + + bfin_t350mcqb_disable_ppi(); + SSYNC(); + + bfin_t350mcqb_config_dma(fbi); + bfin_t350mcqb_config_ppi(fbi); + bfin_t350mcqb_init_timers(); + + /* start dma */ + enable_dma(CH_PPI); + bfin_t350mcqb_enable_ppi(); + bfin_t350mcqb_start_timers(); + } + + spin_unlock(&fbi->lock); + + return 0; +} + +static int bfin_t350mcqb_fb_release(struct fb_info *info, int user) +{ + struct bfin_t350mcqbfb_info *fbi = info->par; + + spin_lock(&fbi->lock); + + fbi->lq043_open_cnt--; + fbi->lq043_mmap = 0; + + if (fbi->lq043_open_cnt <= 0) { + bfin_t350mcqb_disable_ppi(); + SSYNC(); + disable_dma(CH_PPI); + bfin_t350mcqb_stop_timers(); + memset(fbi->fb_buffer, 0, info->fix.smem_len); + } + + spin_unlock(&fbi->lock); + + return 0; +} + +static int bfin_t350mcqb_fb_check_var(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + + if (var->bits_per_pixel != LCD_BPP) { + pr_debug("%s: depth not supported: %u BPP\n", __FUNCTION__, + var->bits_per_pixel); + return -EINVAL; + } + + if (info->var.xres != var->xres || info->var.yres != var->yres || + info->var.xres_virtual != var->xres_virtual || + info->var.yres_virtual != var->yres_virtual) { + pr_debug("%s: Resolution not supported: X%u x Y%u \n", + __FUNCTION__, var->xres, var->yres); + return -EINVAL; + } + + /* + * Memory limit + */ + + if ((info->fix.line_length * var->yres_virtual) > info->fix.smem_len) { + pr_debug("%s: Memory Limit requested yres_virtual = %u\n", + __FUNCTION__, var->yres_virtual); + return -ENOMEM; + } + + return 0; +} + +static int bfin_t350mcqb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) +{ + struct bfin_t350mcqbfb_info *fbi = info->par; + + if (fbi->lq043_mmap) + return -1; + + spin_lock(&fbi->lock); + fbi->lq043_mmap = 1; + spin_unlock(&fbi->lock); + + vma->vm_start = (unsigned long)(fbi->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET); + + vma->vm_end = vma->vm_start + info->fix.smem_len; + /* For those who don't understand how mmap works, go read + * Documentation/nommu-mmap.txt. + * For those that do, you will know that the VM_MAYSHARE flag + * must be set in the vma->vm_flags structure on noMMU + * Other flags can be set, and are documented in + * include/linux/mm.h + */ + vma->vm_flags |= VM_MAYSHARE; + + return 0; +} + +int bfin_t350mcqb_fb_cursor(struct fb_info *info, struct fb_cursor *cursor) +{ + if (nocursor) + return 0; + else + return -EINVAL; /* just to force soft_cursor() call */ +} + +static int bfin_t350mcqb_fb_setcolreg(u_int regno, u_int red, u_int green, + u_int blue, u_int transp, + struct fb_info *info) +{ + if (regno >= BFIN_LCD_NBR_PALETTE_ENTRIES) + return -EINVAL; + + if (info->var.grayscale) { + /* grayscale = 0.30*R + 0.59*G + 0.11*B */ + red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; + } + + if (info->fix.visual == FB_VISUAL_TRUECOLOR) { + + u32 value; + /* Place color in the pseudopalette */ + if (regno > 16) + return -EINVAL; + + red >>= (16 - info->var.red.length); + green >>= (16 - info->var.green.length); + blue >>= (16 - info->var.blue.length); + + value = (red << info->var.red.offset) | + (green << info->var.green.offset) | + (blue << info->var.blue.offset); + value &= 0xFFFFFF; + + ((u32 *) (info->pseudo_palette))[regno] = value; + + } + + return 0; +} + +static struct fb_ops bfin_t350mcqb_fb_ops = { + .owner = THIS_MODULE, + .fb_open = bfin_t350mcqb_fb_open, + .fb_release = bfin_t350mcqb_fb_release, + .fb_check_var = bfin_t350mcqb_fb_check_var, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + .fb_mmap = bfin_t350mcqb_fb_mmap, + .fb_cursor = bfin_t350mcqb_fb_cursor, + .fb_setcolreg = bfin_t350mcqb_fb_setcolreg, +}; + +#ifndef NO_BL_SUPPORT +static int bl_get_brightness(struct backlight_device *bd) +{ + return 0; +} + +static struct backlight_ops bfin_lq043fb_bl_ops = { + .get_brightness = bl_get_brightness, +}; + +static struct backlight_device *bl_dev; + +static int bfin_lcd_get_power(struct lcd_device *dev) +{ + return 0; +} + +static int bfin_lcd_set_power(struct lcd_device *dev, int power) +{ + return 0; +} + +static int bfin_lcd_get_contrast(struct lcd_device *dev) +{ + return 0; +} + +static int bfin_lcd_set_contrast(struct lcd_device *dev, int contrast) +{ + + return 0; +} + +static int bfin_lcd_check_fb(struct fb_info *fi) +{ + if (!fi || (fi == &bfin_t350mcqb_fb)) + return 1; + return 0; +} + +static struct lcd_ops bfin_lcd_ops = { + .get_power = bfin_lcd_get_power, + .set_power = bfin_lcd_set_power, + .get_contrast = bfin_lcd_get_contrast, + .set_contrast = bfin_lcd_set_contrast, + .check_fb = bfin_lcd_check_fb, +}; + +static struct lcd_device *lcd_dev; +#endif + +static irqreturn_t bfin_t350mcqb_irq_error(int irq, void *dev_id) +{ + /*struct bfin_t350mcqbfb_info *info = (struct bfin_t350mcqbfb_info *)dev_id;*/ + + u16 status = bfin_read_PPI_STATUS(); + bfin_write_PPI_STATUS(0xFFFF); + + if (status) { + bfin_t350mcqb_disable_ppi(); + disable_dma(CH_PPI); + + /* start dma */ + enable_dma(CH_PPI); + bfin_t350mcqb_enable_ppi(); + bfin_write_PPI_STATUS(0xFFFF); + } + + return IRQ_HANDLED; +} + +static int __init bfin_t350mcqb_probe(struct platform_device *pdev) +{ + struct bfin_t350mcqbfb_info *info; + struct fb_info *fbinfo; + int ret; + + printk(KERN_INFO DRIVER_NAME ": %dx%d %d-bit RGB FrameBuffer initializing...\n", + LCD_X_RES, LCD_Y_RES, LCD_BPP); + + if (request_dma(CH_PPI, "CH_PPI") < 0) { + printk(KERN_ERR DRIVER_NAME + ": couldn't request CH_PPI DMA\n"); + ret = -EFAULT; + goto out1; + } + + fbinfo = + framebuffer_alloc(sizeof(struct bfin_t350mcqbfb_info), &pdev->dev); + if (!fbinfo) { + ret = -ENOMEM; + goto out2; + } + + info = fbinfo->par; + info->fb = fbinfo; + info->dev = &pdev->dev; + + platform_set_drvdata(pdev, fbinfo); + + strcpy(fbinfo->fix.id, driver_name); + + fbinfo->fix.type = FB_TYPE_PACKED_PIXELS; + fbinfo->fix.type_aux = 0; + fbinfo->fix.xpanstep = 0; + fbinfo->fix.ypanstep = 0; + fbinfo->fix.ywrapstep = 0; + fbinfo->fix.accel = FB_ACCEL_NONE; + fbinfo->fix.visual = FB_VISUAL_TRUECOLOR; + + fbinfo->var.nonstd = 0; + fbinfo->var.activate = FB_ACTIVATE_NOW; + fbinfo->var.height = -1; + fbinfo->var.width = -1; + fbinfo->var.accel_flags = 0; + fbinfo->var.vmode = FB_VMODE_NONINTERLACED; + + fbinfo->var.xres = LCD_X_RES; + fbinfo->var.xres_virtual = LCD_X_RES; + fbinfo->var.yres = LCD_Y_RES; + fbinfo->var.yres_virtual = LCD_Y_RES; + fbinfo->var.bits_per_pixel = LCD_BPP; + + fbinfo->var.red.offset = 0; + fbinfo->var.green.offset = 8; + fbinfo->var.blue.offset = 16; + fbinfo->var.transp.offset = 0; + fbinfo->var.red.length = 8; + fbinfo->var.green.length = 8; + fbinfo->var.blue.length = 8; + fbinfo->var.transp.length = 0; + fbinfo->fix.smem_len = LCD_X_RES * LCD_Y_RES * LCD_BPP / 8; + + fbinfo->fix.line_length = fbinfo->var.xres_virtual * + fbinfo->var.bits_per_pixel / 8; + + + fbinfo->fbops = &bfin_t350mcqb_fb_ops; + fbinfo->flags = FBINFO_FLAG_DEFAULT; + + info->fb_buffer = + dma_alloc_coherent(NULL, fbinfo->fix.smem_len, &info->dma_handle, + GFP_KERNEL); + + if (NULL == info->fb_buffer) { + printk(KERN_ERR DRIVER_NAME + ": couldn't allocate dma buffer.\n"); + ret = -ENOMEM; + goto out3; + } + + memset(info->fb_buffer, 0, fbinfo->fix.smem_len); + + fbinfo->screen_base = (void *)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET; + fbinfo->fix.smem_start = (int)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET; + + fbinfo->fbops = &bfin_t350mcqb_fb_ops; + + fbinfo->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL); + if (!fbinfo->pseudo_palette) { + printk(KERN_ERR DRIVER_NAME + "Fail to allocate pseudo_palette\n"); + + ret = -ENOMEM; + goto out4; + } + + memset(fbinfo->pseudo_palette, 0, sizeof(u32) * 16); + + if (fb_alloc_cmap(&fbinfo->cmap, BFIN_LCD_NBR_PALETTE_ENTRIES, 0) + < 0) { + printk(KERN_ERR DRIVER_NAME + "Fail to allocate colormap (%d entries)\n", + BFIN_LCD_NBR_PALETTE_ENTRIES); + ret = -EFAULT; + goto out5; + } + + if (bfin_t350mcqb_request_ports(1)) { + printk(KERN_ERR DRIVER_NAME ": couldn't request gpio port.\n"); + ret = -EFAULT; + goto out6; + } + + info->irq = platform_get_irq(pdev, 0); + if (info->irq < 0) { + ret = -EINVAL; + goto out7; + } + + if (request_irq(info->irq, (void *)bfin_t350mcqb_irq_error, IRQF_DISABLED, + "PPI ERROR", info) < 0) { + printk(KERN_ERR DRIVER_NAME + ": unable to request PPI ERROR IRQ\n"); + ret = -EFAULT; + goto out7; + } + + if (register_framebuffer(fbinfo) < 0) { + printk(KERN_ERR DRIVER_NAME + ": unable to register framebuffer.\n"); + ret = -EINVAL; + goto out8; + } +#ifndef NO_BL_SUPPORT + bl_dev = + backlight_device_register("bf52x-bl", NULL, NULL, + &bfin_lq043fb_bl_ops); + bl_dev->props.max_brightness = 255; + + lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops); + lcd_dev->props.max_contrast = 255, printk(KERN_INFO "Done.\n"); +#endif + + return 0; + +out8: + free_irq(info->irq, info); +out7: + bfin_t350mcqb_request_ports(0); +out6: + fb_dealloc_cmap(&fbinfo->cmap); +out5: + kfree(fbinfo->pseudo_palette); +out4: + dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer, + info->dma_handle); +out3: + framebuffer_release(fbinfo); +out2: + free_dma(CH_PPI); +out1: + platform_set_drvdata(pdev, NULL); + + return ret; +} + +static int bfin_t350mcqb_remove(struct platform_device *pdev) +{ + + struct fb_info *fbinfo = platform_get_drvdata(pdev); + struct bfin_t350mcqbfb_info *info = fbinfo->par; + + free_dma(CH_PPI); + free_irq(info->irq, info); + + if (info->fb_buffer != NULL) + dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer, + info->dma_handle); + + kfree(fbinfo->pseudo_palette); + fb_dealloc_cmap(&fbinfo->cmap); + +#ifndef NO_BL_SUPPORT + lcd_device_unregister(lcd_dev); + backlight_device_unregister(bl_dev); +#endif + + unregister_framebuffer(fbinfo); + + bfin_t350mcqb_request_ports(0); + + printk(KERN_INFO DRIVER_NAME ": Unregister LCD driver.\n"); + + return 0; +} + +#ifdef CONFIG_PM +static int bfin_t350mcqb_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct fb_info *fbinfo = platform_get_drvdata(pdev); + struct bfin_t350mcqbfb_info *info = fbinfo->par; + + bfin_t350mcqb_disable_ppi(); + disable_dma(CH_PPI); + bfin_write_PPI_STATUS(0xFFFF); + + return 0; +} + +static int bfin_t350mcqb_resume(struct platform_device *pdev) +{ + struct fb_info *fbinfo = platform_get_drvdata(pdev); + struct bfin_t350mcqbfb_info *info = fbinfo->par; + + enable_dma(CH_PPI); + bfin_t350mcqb_enable_ppi(); + + return 0; +} +#else +#define bfin_t350mcqb_suspend NULL +#define bfin_t350mcqb_resume NULL +#endif + +static struct platform_driver bfin_t350mcqb_driver = { + .probe = bfin_t350mcqb_probe, + .remove = bfin_t350mcqb_remove, + .suspend = bfin_t350mcqb_suspend, + .resume = bfin_t350mcqb_resume, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __devinit bfin_t350mcqb_driver_init(void) +{ + return platform_driver_register(&bfin_t350mcqb_driver); +} + +static void __exit bfin_t350mcqb_driver_cleanup(void) +{ + platform_driver_unregister(&bfin_t350mcqb_driver); +} + +MODULE_DESCRIPTION("Blackfin TFT LCD Driver"); +MODULE_LICENSE("GPL"); + +module_init(bfin_t350mcqb_driver_init); +module_exit(bfin_t350mcqb_driver_cleanup); -- GitLab From f5dbb55b995b77d396fe2204495a0af3e24d28c2 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 10 Mar 2008 18:04:34 +0100 Subject: [PATCH 734/923] fix BIOS PCI config cycle buglet causing ACPI boot regression I figured out another ACPI related regression today. randconfig testing triggered an early boot-time hang on a laptop of mine (32-bit x86, config attached) - the screen was scrolling ACPI AML exceptions [with no serial port and no early debugging available]. v2.6.24 works fine on that laptop with the same .config, so after a few hours of bisection (had to restart it 3 times - other regressions interacted), it honed in on this commit: | 10270d4838bdc493781f5a1cf2e90e9c34c9142f is first bad commit | | Author: Linus Torvalds | Date: Wed Feb 13 09:56:14 2008 -0800 | | acpi: fix acpi_os_read_pci_configuration() misuse of raw_pci_read() reverting this commit ontop of -rc5 gave a correctly booting kernel. But this commit fixes a real bug so the real question is, why did it break the bootup? After quite some head-scratching, the following change stood out: - pci_id->bus = tu8; + pci_id->bus = val; pci_id->bus is defined as u16: struct acpi_pci_id { u16 segment; u16 bus; ... and 'tu8' changed from u8 to u32. So previously we'd unconditionally mask the return value of acpi_os_read_pci_configuration() (raw_pci_read()) to 8 bits, but now we just trust whatever comes back from the PCI access routines and only crop it to 16 bits. But if the high 8 bits of that result contains any noise then we'll write that into ACPI's PCI ID descriptor and confuse the heck out of the rest of ACPI. So lets check the PCI-BIOS code on that theory. We have this codepath for 8-bit accesses (arch/x86/pci/pcbios.c:pci_bios_read()): switch (len) { case 1: __asm__("lcall *(%%esi); cld\n\t" "jc 1f\n\t" "xor %%ah, %%ah\n" "1:" : "=c" (*value), "=a" (result) : "1" (PCIBIOS_READ_CONFIG_BYTE), "b" (bx), "D" ((long)reg), "S" (&pci_indirect)); Aha! The "=a" output constraint puts the full 32 bits of EAX into *value. But if the BIOS's routines set any of the high bits to nonzero, we'll return a value with more set in it than intended. The other, more common PCI access methods (v1 and v2 PCI reads) clear out the high bits already, for example pci_conf1_read() does: switch (len) { case 1: *value = inb(0xCFC + (reg & 3)); which explicitly converts the return byte up to 32 bits and zero-extends it. So zero-extending the result in the PCI-BIOS read routine fixes the regression on my laptop. ( It might fix some other long-standing issues we had with PCI-BIOS during the past decade ... ) Both 8-bit and 16-bit accesses were buggy. Signed-off-by: Ingo Molnar Signed-off-by: Linus Torvalds --- arch/x86/pci/pcbios.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c index 10ac8c316c4..2f7109ac4c1 100644 --- a/arch/x86/pci/pcbios.c +++ b/arch/x86/pci/pcbios.c @@ -198,6 +198,11 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, "b" (bx), "D" ((long)reg), "S" (&pci_indirect)); + /* + * Zero-extend the result beyond 8 bits, do not trust the + * BIOS having done it: + */ + *value &= 0xff; break; case 2: __asm__("lcall *(%%esi); cld\n\t" @@ -210,6 +215,11 @@ static int pci_bios_read(unsigned int seg, unsigned int bus, "b" (bx), "D" ((long)reg), "S" (&pci_indirect)); + /* + * Zero-extend the result beyond 16 bits, do not trust the + * BIOS having done it: + */ + *value &= 0xffff; break; case 4: __asm__("lcall *(%%esi); cld\n\t" -- GitLab From ce7c191bca88aa2f942f70a6d6c6315739a81a32 Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Tue, 4 Mar 2008 20:17:02 +1100 Subject: [PATCH 735/923] [POWERPC] spufs: don't (ab)use SCHED_IDLE commit 4ef11014 introduced a usage of SCHED_IDLE to detect when a context is within spu_run. Instead of SCHED_IDLE (which has other meaning), add a flag to sched_flags to tell if a context should be running. Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spufs/run.c | 3 ++- arch/powerpc/platforms/cell/spufs/sched.c | 4 ++-- arch/powerpc/platforms/cell/spufs/spufs.h | 1 + 3 files changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c index 6221968c2a3..cac69e11677 100644 --- a/arch/powerpc/platforms/cell/spufs/run.c +++ b/arch/powerpc/platforms/cell/spufs/run.c @@ -220,6 +220,7 @@ static int spu_run_init(struct spu_context *ctx, u32 *npc) } } + set_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags); return 0; } @@ -234,7 +235,7 @@ static int spu_run_fini(struct spu_context *ctx, u32 *npc, *npc = ctx->ops->npc_read(ctx); spuctx_switch_state(ctx, SPU_UTIL_IDLE_LOADED); - ctx->policy = SCHED_IDLE; + clear_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags); spu_release(ctx); if (signal_pending(current)) diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 5d5f680cd0b..00528ef84ad 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -867,7 +867,7 @@ static noinline void spusched_tick(struct spu_context *ctx) if (ctx->policy == SCHED_FIFO) goto out; - if (--ctx->time_slice && ctx->policy != SCHED_IDLE) + if (--ctx->time_slice && test_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags)) goto out; spu = ctx->spu; @@ -877,7 +877,7 @@ static noinline void spusched_tick(struct spu_context *ctx) new = grab_runnable_context(ctx->prio + 1, spu->node); if (new) { spu_unschedule(spu, ctx); - if (ctx->policy != SCHED_IDLE) + if (test_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags)) spu_add_to_rq(ctx); } else { spu_context_nospu_trace(spusched_tick__newslice, ctx); diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 2c2fe3c07d7..cdc515182f8 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -44,6 +44,7 @@ struct spu_gang; enum { SPU_SCHED_NOTIFY_ACTIVE, SPU_SCHED_WAS_ACTIVE, /* was active upon spu_acquire_saved() */ + SPU_SCHED_SPU_RUN, /* context is within spu_run */ }; struct spu_context { -- GitLab From c368392a9951e6e25e2e2f9268153f1e9365e2c2 Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Tue, 11 Mar 2008 12:46:18 +1100 Subject: [PATCH 736/923] [POWERPC] spufs: fix rescheduling of non-runnable contexts At present, we can hit the BUG_ON in __spu_update_sched_info by reading the regs file of a context between two calls to spu_run. The spu_release_saved called by spufs_regs_read() is resulting in the (now non-runnable) context being placed back on the run queue, so the next call to spu_run ends up in the bug condition. This change uses the SPU_SCHED_SPU_RUN flag to only reschedule a context if it's still in spu_run(). Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spufs/context.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/cell/spufs/context.c b/arch/powerpc/platforms/cell/spufs/context.c index cf6c2c89211..0ad83aeb70b 100644 --- a/arch/powerpc/platforms/cell/spufs/context.c +++ b/arch/powerpc/platforms/cell/spufs/context.c @@ -170,7 +170,8 @@ void spu_release_saved(struct spu_context *ctx) { BUG_ON(ctx->state != SPU_STATE_SAVED); - if (test_and_clear_bit(SPU_SCHED_WAS_ACTIVE, &ctx->sched_flags)) + if (test_and_clear_bit(SPU_SCHED_WAS_ACTIVE, &ctx->sched_flags) && + test_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags)) spu_activate(ctx, 0); spu_release(ctx); -- GitLab From c8d16e27a3601d1cbcdfe657eb4ff5e762019e8d Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Fri, 29 Feb 2008 07:38:54 +0800 Subject: [PATCH 737/923] ACPI: fix boot oops regression in thermal Fix a memory overflow bug when copying NULL internal package element object to external. http://bugzilla.kernel.org/show_bug.cgi?id=10132 Signed-off-by: Lin Ming Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/utilities/utobject.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c index 76ee766c84f..e08b3fa6639 100644 --- a/drivers/acpi/utilities/utobject.c +++ b/drivers/acpi/utilities/utobject.c @@ -432,7 +432,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object, * element -- which is legal) */ if (!internal_object) { - *obj_length = 0; + *obj_length = sizeof(union acpi_object); return_ACPI_STATUS(AE_OK); } -- GitLab From 9a378270c085080b2f38dee6308de4d8413b5141 Mon Sep 17 00:00:00 2001 From: Arne Redlich Date: Tue, 4 Mar 2008 14:07:22 +0200 Subject: [PATCH 738/923] IB/iser: Fix list iteration bug The iteration through the list of "iser_device"s during device lookup/creation is broken -- it might result in an infinite loop if more than one HCA is used with iSER. Fix this by using list_for_each_entry() instead of the open-coded flawed list iteration code. Signed-off-by: Arne Redlich Signed-off-by: Erez Zilber Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iser_verbs.c | 36 +++++++++++------------- 1 file changed, 16 insertions(+), 20 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 714b8db02b2..768ba69f2fd 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -237,33 +237,29 @@ static int iser_free_ib_conn_res(struct iser_conn *ib_conn) static struct iser_device *iser_device_find_by_ib_device(struct rdma_cm_id *cma_id) { - struct list_head *p_list; - struct iser_device *device = NULL; + struct iser_device *device; mutex_lock(&ig.device_list_mutex); - p_list = ig.device_list.next; - while (p_list != &ig.device_list) { - device = list_entry(p_list, struct iser_device, ig_list); + list_for_each_entry(device, &ig.device_list, ig_list) /* find if there's a match using the node GUID */ if (device->ib_device->node_guid == cma_id->device->node_guid) - break; - } - - if (device == NULL) { - device = kzalloc(sizeof *device, GFP_KERNEL); - if (device == NULL) goto out; - /* assign this device to the device */ - device->ib_device = cma_id->device; - /* init the device and link it into ig device list */ - if (iser_create_device_ib_res(device)) { - kfree(device); - device = NULL; - goto out; - } - list_add(&device->ig_list, &ig.device_list); + + device = kzalloc(sizeof *device, GFP_KERNEL); + if (device == NULL) + goto out; + + /* assign this device to the device */ + device->ib_device = cma_id->device; + /* init the device and link it into ig device list */ + if (iser_create_device_ib_res(device)) { + kfree(device); + device = NULL; + goto out; } + list_add(&device->ig_list, &ig.device_list); + out: BUG_ON(device == NULL); device->refcount++; -- GitLab From d33ed425c6cc14370d8c418b504328d2c3db58b4 Mon Sep 17 00:00:00 2001 From: Arne Redlich Date: Tue, 4 Mar 2008 14:11:54 +0200 Subject: [PATCH 739/923] IB/iser: Handle iser_device allocation error gracefully "iser_device" allocation failure is "handled" with a BUG_ON() right before dereferencing the NULL-pointer - fix this! Signed-off-by: Arne Redlich Signed-off-by: Erez Zilber --- drivers/infiniband/ulp/iser/iser_verbs.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 768ba69f2fd..993f0a8ff28 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -244,7 +244,7 @@ struct iser_device *iser_device_find_by_ib_device(struct rdma_cm_id *cma_id) list_for_each_entry(device, &ig.device_list, ig_list) /* find if there's a match using the node GUID */ if (device->ib_device->node_guid == cma_id->device->node_guid) - goto out; + goto inc_refcnt; device = kzalloc(sizeof *device, GFP_KERNEL); if (device == NULL) @@ -260,9 +260,9 @@ struct iser_device *iser_device_find_by_ib_device(struct rdma_cm_id *cma_id) } list_add(&device->ig_list, &ig.device_list); -out: - BUG_ON(device == NULL); +inc_refcnt: device->refcount++; +out: mutex_unlock(&ig.device_list_mutex); return device; } @@ -368,6 +368,12 @@ static void iser_addr_handler(struct rdma_cm_id *cma_id) int ret; device = iser_device_find_by_ib_device(cma_id); + if (!device) { + iser_err("device lookup/creation failed\n"); + iser_connect_error(cma_id); + return; + } + ib_conn = (struct iser_conn *)cma_id->context; ib_conn->device = device; @@ -376,7 +382,6 @@ static void iser_addr_handler(struct rdma_cm_id *cma_id) iser_err("resolve route failed: %d\n", ret); iser_connect_error(cma_id); } - return; } static void iser_route_handler(struct rdma_cm_id *cma_id) -- GitLab From d7c1fbd6606085dbf95e47068d6bd2db8a180e38 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Tue, 4 Mar 2008 16:44:52 -0600 Subject: [PATCH 740/923] RDMA/iwcm: Don't access a cm_id after dropping reference cm_work_handler() can access cm_id_priv after it drops its reference by calling iwch_deref_id(), which might cause it to be freed. The fix is to look at whether IWCM_F_CALLBACK_DESTROY is set _before_ dropping the reference. Then if it was set, free the cm_id on this thread. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/core/iwcm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c index 223b1aa7d92..81c9195b512 100644 --- a/drivers/infiniband/core/iwcm.c +++ b/drivers/infiniband/core/iwcm.c @@ -839,6 +839,7 @@ static void cm_work_handler(struct work_struct *_work) unsigned long flags; int empty; int ret = 0; + int destroy_id; spin_lock_irqsave(&cm_id_priv->lock, flags); empty = list_empty(&cm_id_priv->work_list); @@ -857,9 +858,9 @@ static void cm_work_handler(struct work_struct *_work) destroy_cm_id(&cm_id_priv->id); } BUG_ON(atomic_read(&cm_id_priv->refcount)==0); + destroy_id = test_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags); if (iwcm_deref_id(cm_id_priv)) { - if (test_bit(IWCM_F_CALLBACK_DESTROY, - &cm_id_priv->flags)) { + if (destroy_id) { BUG_ON(!list_empty(&cm_id_priv->work_list)); free_cm_id(cm_id_priv); } -- GitLab From 4af8e10a6c57e7292862bd1703712f0565c7e429 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Tue, 11 Mar 2008 00:27:16 -0400 Subject: [PATCH 741/923] Revert "ACPI: EC: Use proper handle for boot EC" This reverts commit 208c70a45624400fafd7511b96bc426bf01f8f5e. http://bugzilla.kernel.org/show_bug.cgi?id=10100 Signed-off-by: Len Brown --- drivers/acpi/ec.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index caf873c14bf..7222a18a031 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -943,11 +943,7 @@ int __init acpi_ec_ecdt_probe(void) boot_ec->command_addr = ecdt_ptr->control.address; boot_ec->data_addr = ecdt_ptr->data.address; boot_ec->gpe = ecdt_ptr->gpe; - if (ACPI_FAILURE(acpi_get_handle(NULL, ecdt_ptr->id, - &boot_ec->handle))) { - pr_info("Failed to locate handle for boot EC\n"); - boot_ec->handle = ACPI_ROOT_OBJECT; - } + boot_ec->handle = ACPI_ROOT_OBJECT; } else { /* This workaround is needed only on some broken machines, * which require early EC, but fail to provide ECDT */ -- GitLab From bd12935f04066df31903eaf74b1cec03319ecd2e Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Wed, 27 Feb 2008 20:56:01 +0100 Subject: [PATCH 742/923] ACPI: Fix a duplicate log level Signed-off-by: Jean Delvare Signed-off-by: Len Brown --- drivers/acpi/osl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 8edba7b678e..065819ba87c 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1237,7 +1237,7 @@ int acpi_check_resource_conflict(struct resource *res) if (clash) { if (acpi_enforce_resources != ENFORCE_RESOURCES_NO) { - printk(KERN_INFO "%sACPI: %s resource %s [0x%llx-0x%llx]" + printk("%sACPI: %s resource %s [0x%llx-0x%llx]" " conflicts with ACPI region %s" " [0x%llx-0x%llx]\n", acpi_enforce_resources == ENFORCE_RESOURCES_LAX -- GitLab From 96b2dd1f1fdb9a131b7f2e79e5c7b2e4282cfcbf Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 5 Mar 2008 18:24:51 -0800 Subject: [PATCH 743/923] ACPI: replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: Len Brown --- drivers/acpi/bus.c | 2 +- drivers/acpi/scan.c | 2 +- drivers/acpi/sleep/main.c | 2 +- drivers/acpi/utilities/utdebug.c | 2 +- drivers/acpi/video.c | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index ce3c0a2cbac..5b6760e0f95 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -776,7 +776,7 @@ static int __init acpi_init(void) acpi_kobj = kobject_create_and_add("acpi", firmware_kobj); if (!acpi_kobj) { - printk(KERN_WARNING "%s: kset create error\n", __FUNCTION__); + printk(KERN_WARNING "%s: kset create error\n", __func__); acpi_kobj = NULL; } diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 3fac011f9cf..b26e3019e1c 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -966,7 +966,7 @@ static void acpi_device_set_id(struct acpi_device *device, case ACPI_BUS_TYPE_DEVICE: status = acpi_get_object_info(handle, &buffer); if (ACPI_FAILURE(status)) { - printk(KERN_ERR PREFIX "%s: Error reading device info\n", __FUNCTION__); + printk(KERN_ERR PREFIX "%s: Error reading device info\n", __func__); return; } diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 293a1cbb47c..d2f71a54726 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -504,7 +504,7 @@ static void acpi_power_off_prepare(void) static void acpi_power_off(void) { /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */ - printk("%s called\n", __FUNCTION__); + printk("%s called\n", __func__); local_irq_disable(); acpi_enable_wakeup_device(ACPI_STATE_S5); acpi_enter_sleep_state(ACPI_STATE_S5); diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c index c7e128e5369..7361204b1ee 100644 --- a/drivers/acpi/utilities/utdebug.c +++ b/drivers/acpi/utilities/utdebug.c @@ -109,7 +109,7 @@ void acpi_ut_track_stack_ptr(void) * RETURN: Updated pointer to the function name * * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present. - * This allows compiler macros such as __FUNCTION__ to be used + * This allows compiler macros such as __func__ to be used * with no change to the debug output. * ******************************************************************************/ diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 12cce69b544..d64a142e5e1 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -1201,7 +1201,7 @@ static int acpi_video_bus_ROM_seq_show(struct seq_file *seq, void *offset) if (!video) goto end; - printk(KERN_INFO PREFIX "Please implement %s\n", __FUNCTION__); + printk(KERN_INFO PREFIX "Please implement %s\n", __func__); seq_printf(seq, "\n"); end: -- GitLab From 1f94ef598e8d29b92b9fc85d43c832e03721d3cb Mon Sep 17 00:00:00 2001 From: Gregory Haskins Date: Mon, 10 Mar 2008 16:52:41 -0400 Subject: [PATCH 744/923] Revert "cpu hotplug: adjust root-domain->online span in response to hotplug event" This reverts commit 393d94d98b19089ec172566e23557997931b137e. Lets fix this right. Signed-off-by: Gregory Haskins Cc: Gautham R Shenoy Cc: "Siddha, Suresh B" Cc: "Rafael J. Wysocki" Cc: Andrew Morton Signed-off-by: Ingo Molnar --- kernel/sched.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index b02e4fc2564..52b98675acb 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5813,13 +5813,6 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) /* Must be high prio: stop_machine expects to yield to it. */ rq = task_rq_lock(p, &flags); __setscheduler(rq, p, SCHED_FIFO, MAX_RT_PRIO-1); - - /* Update our root-domain */ - if (rq->rd) { - BUG_ON(!cpu_isset(cpu, rq->rd->span)); - cpu_set(cpu, rq->rd->online); - } - task_rq_unlock(rq, &flags); cpu_rq(cpu)->migration_thread = p; break; @@ -5828,6 +5821,15 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) case CPU_ONLINE_FROZEN: /* Strictly unnecessary, as first user will wake it. */ wake_up_process(cpu_rq(cpu)->migration_thread); + + /* Update our root-domain */ + rq = cpu_rq(cpu); + spin_lock_irqsave(&rq->lock, flags); + if (rq->rd) { + BUG_ON(!cpu_isset(cpu, rq->rd->span)); + cpu_set(cpu, rq->rd->online); + } + spin_unlock_irqrestore(&rq->lock, flags); break; #ifdef CONFIG_HOTPLUG_CPU @@ -6103,6 +6105,8 @@ static void rq_attach_root(struct rq *rq, struct root_domain *rd) rq->rd = rd; cpu_set(rq->cpu, rd->span); + if (cpu_isset(rq->cpu, cpu_online_map)) + cpu_set(rq->cpu, rd->online); for (class = sched_class_highest; class; class = class->next) { if (class->join_domain) -- GitLab From 08f503b0c089968b2542659a89dfd50c5c59bb0b Mon Sep 17 00:00:00 2001 From: Gregory Haskins Date: Mon, 10 Mar 2008 17:59:11 -0400 Subject: [PATCH 745/923] keep rd->online and cpu_online_map in sync It is possible to allow the root-domain cache of online cpus to become out of sync with the global cpu_online_map. This is because we currently trigger removal of cpus too early in the notifier chain. Other DOWN_PREPARE handlers may in fact run and reconfigure the root-domain topology, thereby stomping on our own offline handling. The end result is that rd->online may become out of sync with cpu_online_map, which results in potential task misrouting. So change the offline handling to be more tightly coupled with the global offline process by triggering on CPU_DYING intead of CPU_DOWN_PREPARE. Signed-off-by: Gregory Haskins Cc: Gautham R Shenoy Cc: "Siddha, Suresh B" Cc: "Rafael J. Wysocki" Cc: Andrew Morton Signed-off-by: Ingo Molnar --- kernel/sched.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched.c b/kernel/sched.c index 52b98675acb..1cb53fb1fe3 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5881,7 +5881,8 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) spin_unlock_irq(&rq->lock); break; - case CPU_DOWN_PREPARE: + case CPU_DYING: + case CPU_DYING_FROZEN: /* Update our root-domain */ rq = cpu_rq(cpu); spin_lock_irqsave(&rq->lock, flags); -- GitLab From 9a46d7e5b63903a70cd96c2c1391a7a26a8dbec9 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 26 Feb 2008 09:30:32 +0100 Subject: [PATCH 746/923] x86: ioremap, remove WARN_ON() Signed-off-by: Ingo Molnar --- arch/x86/mm/ioremap.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index ac3c959e271..8fe576baa14 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -134,8 +134,6 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size, return NULL; } - WARN_ON_ONCE(page_is_ram(pfn)); - switch (mode) { case IOR_MODE_UNCACHED: default: -- GitLab From 40f0933d51f4cba26a5c009a26bb230f4514c1b6 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 28 Feb 2008 19:57:07 -0800 Subject: [PATCH 747/923] x86: ia32 syscall restart fix The code to restart syscalls after signals depends on checking for a negative orig_ax, and for particular negative -ERESTART* values in ax. These fields are 64 bits and for a 32-bit task they get zero-extended. The syscall restart behavior is lost, a regression from a native 32-bit kernel and from 64-bit tasks' behavior. This patch fixes the problem by doing sign-extension where it matters. For orig_ax, the only time the value should be -1 but winds up as 0x0ffffffff is via a 32-bit ptrace call. So the patch changes ptrace to sign-extend the 32-bit orig_eax value when it's stored; it doesn't change the checks on orig_ax, though it uses the new current_syscall() inline to better document the subtle importance of the used of signedness there. The ax value is stored a lot of ways and it seems hard to get them all sign-extended at their origins. So for that, we use the current_syscall_ret() to sign-extend it only for 32-bit tasks at the time of the -ERESTART* comparisons. Signed-off-by: Roland McGrath Signed-off-by: Ingo Molnar --- arch/x86/kernel/ptrace.c | 9 ++++++++- arch/x86/kernel/signal_64.c | 38 ++++++++++++++++++++++++++++++++----- 2 files changed, 41 insertions(+), 6 deletions(-) diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index 8f64abe699f..d5904eef1d3 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -1055,10 +1055,17 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 value) R32(esi, si); R32(ebp, bp); R32(eax, ax); - R32(orig_eax, orig_ax); R32(eip, ip); R32(esp, sp); + case offsetof(struct user32, regs.orig_eax): + /* + * Sign-extend the value so that orig_eax = -1 + * causes (long)orig_ax < 0 tests to fire correctly. + */ + regs->orig_ax = (long) (s32) value; + break; + case offsetof(struct user32, regs.eflags): return set_flags(child, value); diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c index 56b72fb67f9..1c83e5124c6 100644 --- a/arch/x86/kernel/signal_64.c +++ b/arch/x86/kernel/signal_64.c @@ -310,6 +310,35 @@ give_sigsegv: return -EFAULT; } +/* + * Return -1L or the syscall number that @regs is executing. + */ +static long current_syscall(struct pt_regs *regs) +{ + /* + * We always sign-extend a -1 value being set here, + * so this is always either -1L or a syscall number. + */ + return regs->orig_ax; +} + +/* + * Return a value that is -EFOO if the system call in @regs->orig_ax + * returned an error. This only works for @regs from @current. + */ +static long current_syscall_ret(struct pt_regs *regs) +{ +#ifdef CONFIG_IA32_EMULATION + if (test_thread_flag(TIF_IA32)) + /* + * Sign-extend the value so (int)-EFOO becomes (long)-EFOO + * and will match correctly in comparisons. + */ + return (int) regs->ax; +#endif + return regs->ax; +} + /* * OK, we're invoking a handler */ @@ -327,9 +356,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, #endif /* Are we from a system call? */ - if ((long)regs->orig_ax >= 0) { + if (current_syscall(regs) >= 0) { /* If so, check system call restarting.. */ - switch (regs->ax) { + switch (current_syscall_ret(regs)) { case -ERESTART_RESTARTBLOCK: case -ERESTARTNOHAND: regs->ax = -EINTR; @@ -426,10 +455,9 @@ static void do_signal(struct pt_regs *regs) } /* Did we come from a system call? */ - if ((long)regs->orig_ax >= 0) { + if (current_syscall(regs) >= 0) { /* Restart the system call - no handlers present */ - long res = regs->ax; - switch (res) { + switch (current_syscall_ret(regs)) { case -ERESTARTNOHAND: case -ERESTARTSYS: case -ERESTARTNOINTR: -- GitLab From 985a34bd75cc8c96e43f00dcdda7c3fdb51a3026 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 9 Mar 2008 13:14:37 +0100 Subject: [PATCH 748/923] x86: remove quicklists quicklists cause a serious memory leak on 32-bit x86, as documented at: http://bugzilla.kernel.org/show_bug.cgi?id=9991 the reason is that the quicklist pool is a special-purpose cache that grows out of proportion. It is not accounted for anywhere and users have no way to even realize that it's the quicklists that are causing RAM usage spikes. It was supposed to be a relatively small pool, but as demonstrated by KOSAKI Motohiro, they can grow as large as: Quicklists: 1194304 kB given how much trouble this code has caused historically, and given that Andrew objected to its introduction on x86 (years ago), the best option at this point is to remove them. [ any performance benefits of caching constructed pgds should be implemented in a more generic way (possibly within the page allocator), while still allowing constructed pages to be allocated by other workloads. ] Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 3 --- arch/x86/mm/pgtable_32.c | 18 +++++++++--------- include/asm-x86/pgtable_32.h | 5 ++--- 3 files changed, 11 insertions(+), 15 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index f41c9538ca3..237fc128143 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -66,9 +66,6 @@ config MMU config ZONE_DMA def_bool y -config QUICKLIST - def_bool X86_32 - config SBUS bool diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c index 73aba712520..2f9e9afcb9f 100644 --- a/arch/x86/mm/pgtable_32.c +++ b/arch/x86/mm/pgtable_32.c @@ -342,12 +342,16 @@ static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp) pgd_t *pgd_alloc(struct mm_struct *mm) { - pgd_t *pgd = quicklist_alloc(0, GFP_KERNEL, pgd_ctor); + pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO); - mm->pgd = pgd; /* so that alloc_pd can use it */ + /* so that alloc_pd can use it */ + mm->pgd = pgd; + if (pgd) + pgd_ctor(pgd); if (pgd && !pgd_prepopulate_pmd(mm, pgd)) { - quicklist_free(0, pgd_dtor, pgd); + pgd_dtor(pgd); + free_page((unsigned long)pgd); pgd = NULL; } @@ -357,12 +361,8 @@ pgd_t *pgd_alloc(struct mm_struct *mm) void pgd_free(struct mm_struct *mm, pgd_t *pgd) { pgd_mop_up_pmds(mm, pgd); - quicklist_free(0, pgd_dtor, pgd); -} - -void check_pgt_cache(void) -{ - quicklist_trim(0, pgd_dtor, 25, 16); + pgd_dtor(pgd); + free_page((unsigned long)pgd); } void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte) diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index a842c7222b1..4e6a0fca0b4 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -26,10 +26,9 @@ struct mm_struct; struct vm_area_struct; extern pgd_t swapper_pg_dir[1024]; -extern struct kmem_cache *pmd_cache; -void check_pgt_cache(void); -static inline void pgtable_cache_init(void) {} +static inline void pgtable_cache_init(void) { } +static inline void check_pgt_cache(void) { } void paging_init(void); -- GitLab From 2c81ce4c9c37b910210f2640c28e98a0c398dc26 Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Tue, 11 Mar 2008 13:30:00 -0400 Subject: [PATCH 749/923] ACPI: EC: Handle IRQ storm on Acer laptops On some Acer systems, the HW fails to clear the GPE source, causing an interrupt storm. So in EC interrupt mode, we count how many interrupts we receive when waiting. If we get more than 5, we give up on interrupt mode and revert to polling mode. Also, for polling mode to work on Acers, we need to insert a delay. Signed-off-by: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/ec.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index caf873c14bf..2c77359dbdc 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -129,6 +129,7 @@ static struct acpi_ec { struct mutex lock; wait_queue_head_t wait; struct list_head list; + atomic_t irq_count; u8 handlers_installed; } *boot_ec, *first_ec; @@ -181,6 +182,8 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll) { int ret = 0; + atomic_set(&ec->irq_count, 0); + if (unlikely(event == ACPI_EC_EVENT_OBF_1 && test_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags))) force_poll = 1; @@ -227,6 +230,7 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll) while (time_before(jiffies, delay)) { if (acpi_ec_check_status(ec, event)) goto end; + msleep(5); } } pr_err(PREFIX "acpi_ec_wait timeout," @@ -529,6 +533,13 @@ static u32 acpi_ec_gpe_handler(void *data) struct acpi_ec *ec = data; pr_debug(PREFIX "~~~> interrupt\n"); + atomic_inc(&ec->irq_count); + if (atomic_read(&ec->irq_count) > 5) { + pr_err(PREFIX "GPE storm detected, disabling EC GPE\n"); + acpi_disable_gpe(NULL, ec->gpe, ACPI_ISR); + clear_bit(EC_FLAGS_GPE_MODE, &ec->flags); + return ACPI_INTERRUPT_HANDLED; + } clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags); if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) wake_up(&ec->wait); -- GitLab From 4db42c51ce0033f409fc3a2742e7aa2efa03f7c3 Mon Sep 17 00:00:00 2001 From: "arvidjaar@mail.ru" Date: Tue, 4 Mar 2008 15:06:34 -0800 Subject: [PATCH 750/923] toshiba_acpi: Enable autoloading This adds aliases to enable autoloading of toishiba_acpi. Two aliases are defined - TOS6200 (for \\_SB_.VALD.GHCI) and TSO1900 (for \\_SB_.VALZ.GHCI). This allows toishiba_acpi to be autoloaded on systems that provide those devices. Signed-off-by: Andrey Borzenkov Cc: Olivier Blin Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/toshiba_acpi.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c index 9e8c20c6a0b..0a43c8e0eff 100644 --- a/drivers/acpi/toshiba_acpi.c +++ b/drivers/acpi/toshiba_acpi.c @@ -99,6 +99,13 @@ MODULE_LICENSE("GPL"); #define HCI_VIDEO_OUT_CRT 0x2 #define HCI_VIDEO_OUT_TV 0x4 +static const struct acpi_device_id toshiba_device_ids[] = { + {"TOS6200", 0}, + {"TOS1900", 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, toshiba_device_ids); + /* utility */ -- GitLab From 3b34e5232fa9776e9a4b3f539cd9fee7609c900e Mon Sep 17 00:00:00 2001 From: Andrey Borzenkov Date: Tue, 4 Mar 2008 15:06:35 -0800 Subject: [PATCH 751/923] ACPI: button: make real parent for input devices in device tree Signed-off-by: Andrey Borzenkov Cc: Dmitry Torokhov Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/button.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index 24a7865a57c..6c5da83cdb6 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -449,6 +449,7 @@ static int acpi_button_add(struct acpi_device *device) input->phys = button->phys; input->id.bustype = BUS_HOST; input->id.product = button->type; + input->dev.parent = &device->dev; switch (button->type) { case ACPI_BUTTON_TYPE_POWER: -- GitLab From d6f882e10442c1ea6ed5f93365f48be4cb520be7 Mon Sep 17 00:00:00 2001 From: Glauber Costa Date: Tue, 4 Mar 2008 15:06:36 -0800 Subject: [PATCH 752/923] ACPI: use ACPI_DEBUG_PRINT instead of printk in acpi_processor_hotplug_notify() For consistency, use ACPI_DEBUG_PRINT instead of printk in acpi_processor_hotplug_notify() for BUS_CHECK and DEVICE_CHECK events Signed-off-by: Glauber Costa Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/processor_core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index a3cc8a98255..3501cb53857 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -897,9 +897,10 @@ acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data) switch (event) { case ACPI_NOTIFY_BUS_CHECK: case ACPI_NOTIFY_DEVICE_CHECK: - printk("Processor driver received %s event\n", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Processor driver received %s event\n", (event == ACPI_NOTIFY_BUS_CHECK) ? - "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK"); + "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK")); if (!is_processor_present(handle)) break; -- GitLab From 97ed83905e5f8547a94a8066441351c6920728a1 Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Thu, 6 Mar 2008 13:08:09 -0500 Subject: [PATCH 753/923] drivers/net/Kconfig: fix whitespace for GELIC_WIRELESS entry Signed-off-by: John W. Linville --- drivers/net/Kconfig | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index a64bb415f10..fe7b5ec0970 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2366,15 +2366,15 @@ config GELIC_NET module will be called ps3_gelic. config GELIC_WIRELESS - bool "PS3 Wireless support" - depends on GELIC_NET - select WIRELESS_EXT - help - This option adds the support for the wireless feature of PS3. - If you have the wireless-less model of PS3 or have no plan to - use wireless feature, disabling this option saves memory. As - the driver automatically distinguishes the models, you can - safely enable this option even if you have a wireless-less model. + bool "PS3 Wireless support" + depends on GELIC_NET + select WIRELESS_EXT + help + This option adds the support for the wireless feature of PS3. + If you have the wireless-less model of PS3 or have no plan to + use wireless feature, disabling this option saves memory. As + the driver automatically distinguishes the models, you can + safely enable this option even if you have a wireless-less model. config GIANFAR tristate "Gianfar Ethernet" -- GitLab From 5f0547c2813d4677908fa6de02f9911d25996515 Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Thu, 6 Mar 2008 10:30:21 +0100 Subject: [PATCH 754/923] libertas: fix the 'compare command with itself' properly |libertas: Invalid CMD_RESP 8012 to command 50! The special case got mixed up in 8a96df80b3. Signed-off-by: Sebastian Siewior Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/cmdresp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c index bdc6a1cc210..f0ef7081bde 100644 --- a/drivers/net/wireless/libertas/cmdresp.c +++ b/drivers/net/wireless/libertas/cmdresp.c @@ -578,7 +578,7 @@ int lbs_process_rx_command(struct lbs_private *priv) goto done; } if (respcmd != CMD_RET(curcmd) && - respcmd != CMD_802_11_ASSOCIATE && curcmd != CMD_RET_802_11_ASSOCIATE) { + respcmd != CMD_RET_802_11_ASSOCIATE && curcmd != CMD_802_11_ASSOCIATE) { lbs_pr_info("Invalid CMD_RESP %x to command %x!\n", respcmd, curcmd); spin_unlock_irqrestore(&priv->driver_lock, flags); ret = -1; -- GitLab From fbb0a27a8ad56f822f479ee85446d9c29483a3d1 Mon Sep 17 00:00:00 2001 From: Adam Baker Date: Sun, 9 Mar 2008 22:40:40 +0100 Subject: [PATCH 755/923] rt2x00: never disable multicast because it disables broadcast too On rt73 and rt61 disabling reception of multicast packets also disables broadcast traffic which we never want to do. Therefore we should never disable multicast. Signed-off-by: Adam Baker Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt61pci.c | 4 ++-- drivers/net/wireless/rt2x00/rt73usb.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index e808db98f2f..93ea212fedd 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -2302,9 +2302,9 @@ static void rt61pci_configure_filter(struct ieee80211_hw *hw, * Apply some rules to the filters: * - Some filters imply different filters to be set. * - Some things we can't filter out at all. + * - Multicast filter seems to kill broadcast traffic so never use it. */ - if (mc_count) - *total_flags |= FIF_ALLMULTI; + *total_flags |= FIF_ALLMULTI; if (*total_flags & FIF_OTHER_BSS || *total_flags & FIF_PROMISC_IN_BSS) *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS; diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index 4fac2d414d8..2917700a254 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -1869,9 +1869,9 @@ static void rt73usb_configure_filter(struct ieee80211_hw *hw, * Apply some rules to the filters: * - Some filters imply different filters to be set. * - Some things we can't filter out at all. + * - Multicast filter seems to kill broadcast traffic so never use it. */ - if (mc_count) - *total_flags |= FIF_ALLMULTI; + *total_flags |= FIF_ALLMULTI; if (*total_flags & FIF_OTHER_BSS || *total_flags & FIF_PROMISC_IN_BSS) *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS; -- GitLab From 445815d7ea4f59baf103f28b45f7dd45f21ff75d Mon Sep 17 00:00:00 2001 From: Ivo van Doorn Date: Sun, 9 Mar 2008 22:42:32 +0100 Subject: [PATCH 756/923] rt2x00: Add new D-Link USB ID Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt73usb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index 2917700a254..8103d41a154 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -2098,6 +2098,7 @@ static struct usb_device_id rt73usb_device_table[] = { /* D-Link */ { USB_DEVICE(0x07d1, 0x3c03), USB_DEVICE_DATA(&rt73usb_ops) }, { USB_DEVICE(0x07d1, 0x3c04), USB_DEVICE_DATA(&rt73usb_ops) }, + { USB_DEVICE(0x07d1, 0x3c07), USB_DEVICE_DATA(&rt73usb_ops) }, /* Gemtek */ { USB_DEVICE(0x15a9, 0x0004), USB_DEVICE_DATA(&rt73usb_ops) }, /* Gigabyte */ -- GitLab From 140277e9a710202608914b5b731948d2769399bc Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Fri, 14 Dec 2007 01:53:56 -0800 Subject: [PATCH 757/923] IB/ipath: Fix IB compliance problems with link state vs physical state Subnet manager SetPortinfo messages distingush between changing the link state (DOWN, ARM, ACTIVE) and the link physical state (POLL, SLEEP, DISABLED). These are somewhat independent commands and affect when link width and speed changes take effect. Without this patch, a link DOWN physical state NOP command was causing the link width and speed settings to take effect which should only happen when the link physical state is goes down (either by a SMP or some link physical error like link errors exceeding the threshold). Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_common.h | 2 +- drivers/infiniband/hw/ipath/ipath_driver.c | 28 ++++++++----------- drivers/infiniband/hw/ipath/ipath_kernel.h | 1 + drivers/infiniband/hw/ipath/ipath_mad.c | 7 ++--- drivers/infiniband/hw/ipath/ipath_registers.h | 2 +- 5 files changed, 18 insertions(+), 22 deletions(-) diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h index 41462109554..591901aab6b 100644 --- a/drivers/infiniband/hw/ipath/ipath_common.h +++ b/drivers/infiniband/hw/ipath/ipath_common.h @@ -75,7 +75,7 @@ #define IPATH_IB_LINKDOWN 0 #define IPATH_IB_LINKARM 1 #define IPATH_IB_LINKACTIVE 2 -#define IPATH_IB_LINKINIT 3 +#define IPATH_IB_LINKDOWN_ONLY 3 #define IPATH_IB_LINKDOWN_SLEEP 4 #define IPATH_IB_LINKDOWN_DISABLE 5 #define IPATH_IB_LINK_LOOPBACK 6 /* enable local loopback */ diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index d5ff6ca2db3..ca4d0acc678 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -851,8 +851,7 @@ void ipath_disarm_piobufs(struct ipath_devdata *dd, unsigned first, * -ETIMEDOUT state can have multiple states set, for any of several * transitions. */ -static int ipath_wait_linkstate(struct ipath_devdata *dd, u32 state, - int msecs) +int ipath_wait_linkstate(struct ipath_devdata *dd, u32 state, int msecs) { dd->ipath_state_wanted = state; wait_event_interruptible_timeout(ipath_state_wait, @@ -1656,8 +1655,8 @@ void ipath_cancel_sends(struct ipath_devdata *dd, int restore_sendctrl) static void ipath_set_ib_lstate(struct ipath_devdata *dd, int which) { static const char *what[4] = { - [0] = "DOWN", - [INFINIPATH_IBCC_LINKCMD_INIT] = "INIT", + [0] = "NOP", + [INFINIPATH_IBCC_LINKCMD_DOWN] = "DOWN", [INFINIPATH_IBCC_LINKCMD_ARMED] = "ARMED", [INFINIPATH_IBCC_LINKCMD_ACTIVE] = "ACTIVE" }; @@ -1672,9 +1671,9 @@ static void ipath_set_ib_lstate(struct ipath_devdata *dd, int which) (dd, dd->ipath_kregs->kr_ibcstatus) >> INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) & INFINIPATH_IBCS_LINKTRAININGSTATE_MASK]); - /* flush all queued sends when going to DOWN or INIT, to be sure that + /* flush all queued sends when going to DOWN to be sure that * they don't block MAD packets */ - if (!linkcmd || linkcmd == INFINIPATH_IBCC_LINKCMD_INIT) + if (linkcmd == INFINIPATH_IBCC_LINKCMD_DOWN) ipath_cancel_sends(dd, 1); ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, @@ -1687,6 +1686,13 @@ int ipath_set_linkstate(struct ipath_devdata *dd, u8 newstate) int ret; switch (newstate) { + case IPATH_IB_LINKDOWN_ONLY: + ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKCMD_DOWN << + INFINIPATH_IBCC_LINKCMD_SHIFT); + /* don't wait */ + ret = 0; + goto bail; + case IPATH_IB_LINKDOWN: ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKINITCMD_POLL << INFINIPATH_IBCC_LINKINITCMD_SHIFT); @@ -1709,16 +1715,6 @@ int ipath_set_linkstate(struct ipath_devdata *dd, u8 newstate) ret = 0; goto bail; - case IPATH_IB_LINKINIT: - if (dd->ipath_flags & IPATH_LINKINIT) { - ret = 0; - goto bail; - } - ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKCMD_INIT << - INFINIPATH_IBCC_LINKCMD_SHIFT); - lstate = IPATH_LINKINIT; - break; - case IPATH_IB_LINKARM: if (dd->ipath_flags & IPATH_LINKARMED) { ret = 0; diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 4cc0f95ea87..ecf3f7ff771 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -767,6 +767,7 @@ void ipath_kreceive(struct ipath_portdata *); int ipath_setrcvhdrsize(struct ipath_devdata *, unsigned); int ipath_reset_device(int); void ipath_get_faststats(unsigned long); +int ipath_wait_linkstate(struct ipath_devdata *, u32, int); int ipath_set_linkstate(struct ipath_devdata *, u8); int ipath_set_mtu(struct ipath_devdata *, u16); int ipath_set_lid(struct ipath_devdata *, u32, u8); diff --git a/drivers/infiniband/hw/ipath/ipath_mad.c b/drivers/infiniband/hw/ipath/ipath_mad.c index d98d5f10370..b34b91d3723 100644 --- a/drivers/infiniband/hw/ipath/ipath_mad.c +++ b/drivers/infiniband/hw/ipath/ipath_mad.c @@ -555,10 +555,7 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, /* FALLTHROUGH */ case IB_PORT_DOWN: if (lstate == 0) - if (get_linkdowndefaultstate(dd)) - lstate = IPATH_IB_LINKDOWN_SLEEP; - else - lstate = IPATH_IB_LINKDOWN; + lstate = IPATH_IB_LINKDOWN_ONLY; else if (lstate == 1) lstate = IPATH_IB_LINKDOWN_SLEEP; else if (lstate == 2) @@ -568,6 +565,8 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, else goto err; ipath_set_linkstate(dd, lstate); + ipath_wait_linkstate(dd, IPATH_LINKINIT | IPATH_LINKARMED | + IPATH_LINKACTIVE, 1000); break; case IB_PORT_ARMED: ipath_set_linkstate(dd, IPATH_IB_LINKARM); diff --git a/drivers/infiniband/hw/ipath/ipath_registers.h b/drivers/infiniband/hw/ipath/ipath_registers.h index 6d2a17f9c1d..92ad73a7fff 100644 --- a/drivers/infiniband/hw/ipath/ipath_registers.h +++ b/drivers/infiniband/hw/ipath/ipath_registers.h @@ -185,7 +185,7 @@ #define INFINIPATH_IBCC_LINKINITCMD_SLEEP 3 #define INFINIPATH_IBCC_LINKINITCMD_SHIFT 16 #define INFINIPATH_IBCC_LINKCMD_MASK 0x3ULL -#define INFINIPATH_IBCC_LINKCMD_INIT 1 /* move to 0x11 */ +#define INFINIPATH_IBCC_LINKCMD_DOWN 1 /* move to 0x11 */ #define INFINIPATH_IBCC_LINKCMD_ARMED 2 /* move to 0x21 */ #define INFINIPATH_IBCC_LINKCMD_ACTIVE 3 /* move to 0x31 */ #define INFINIPATH_IBCC_LINKCMD_SHIFT 18 -- GitLab From 87d5aed85b2d79e4075ad2ca1449e9b98f657a09 Mon Sep 17 00:00:00 2001 From: Patrick Marchand Latifi Date: Mon, 7 Jan 2008 23:43:04 -0800 Subject: [PATCH 758/923] IB/ipath: Fix potentially wrong RNR retry counter returned in ipath_query_qp() There can be a case where the requester's rnr retry counter (s_rnr_retry) is less than the number of rnr retries allowed per QP (s_rnr_retry_cnt). This can happen if the s_rnr_retry counter is being decremented and an ipath_query_qp call is issued during that time frame. The fix is to always return the number of rnr retries allowed per QP instead of the requester's rnr counter. Found by code review. Signed-off-by: Patrick Marchand Latifi Acked-by: Ralph Campbell Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 80dc623cee4..8214c0905c7 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -647,7 +647,7 @@ int ipath_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, attr->port_num = 1; attr->timeout = qp->timeout; attr->retry_cnt = qp->s_retry_cnt; - attr->rnr_retry = qp->s_rnr_retry; + attr->rnr_retry = qp->s_rnr_retry_cnt; attr->alt_port_num = 0; attr->alt_timeout = 0; -- GitLab From 4cd5060cf7c2207c31e2e368f8a6343355362e51 Mon Sep 17 00:00:00 2001 From: Patrick Marchand Latifi Date: Fri, 18 Jan 2008 20:10:48 -0800 Subject: [PATCH 759/923] IB/ipath: Fix RC QP initialization This patch fixes the initialization of RC QPs, since we would rely on the queue pair type (ibqp->qp_type) being set, but this field is only initialized when we return from ipath_create_qp (it is initialized by the user-level verbs library). The fix is to not depend on this field to initialize the send and the receive state of the RC QP. Signed-off-by: Patrick Marchand Latifi Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_qp.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 8214c0905c7..553d9007cf0 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -329,8 +329,9 @@ struct ipath_qp *ipath_lookup_qpn(struct ipath_qp_table *qpt, u32 qpn) /** * ipath_reset_qp - initialize the QP state to the reset state * @qp: the QP to reset + * @type: the QP type */ -static void ipath_reset_qp(struct ipath_qp *qp) +static void ipath_reset_qp(struct ipath_qp *qp, enum ib_qp_type type) { qp->remote_qpn = 0; qp->qkey = 0; @@ -342,7 +343,7 @@ static void ipath_reset_qp(struct ipath_qp *qp) qp->s_psn = 0; qp->r_psn = 0; qp->r_msn = 0; - if (qp->ibqp.qp_type == IB_QPT_RC) { + if (type == IB_QPT_RC) { qp->s_state = IB_OPCODE_RC_SEND_LAST; qp->r_state = IB_OPCODE_RC_SEND_LAST; } else { @@ -534,7 +535,7 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, switch (new_state) { case IB_QPS_RESET: - ipath_reset_qp(qp); + ipath_reset_qp(qp, ibqp->qp_type); break; case IB_QPS_ERR: @@ -839,7 +840,7 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, goto bail_qp; } qp->ip = NULL; - ipath_reset_qp(qp); + ipath_reset_qp(qp, init_attr->qp_type); break; default: -- GitLab From 2a049e514b890c8b70b965bbd9f4e3c963af69c9 Mon Sep 17 00:00:00 2001 From: Patrick Marchand Latifi Date: Thu, 31 Jan 2008 00:24:37 -0800 Subject: [PATCH 760/923] IB/ipath: Fix error completion put on send CQ instead of recv CQ A work completion entry could be placed on the wrong completion queue when an RC QP is placed in the error state. Signed-off-by: Patrick Marchand Latifi Acked-by: Ralph Campbell Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 553d9007cf0..087ed316647 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -415,7 +415,7 @@ int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err) wc.wr_id = qp->r_wr_id; wc.opcode = IB_WC_RECV; wc.status = err; - ipath_cq_enter(to_icq(qp->ibqp.send_cq), &wc, 1); + ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc, 1); } wc.status = IB_WC_WR_FLUSH_ERR; -- GitLab From 450bb3875f5f5ab3679823c941d6045d16967370 Mon Sep 17 00:00:00 2001 From: Patrick Marchand Latifi Date: Wed, 20 Feb 2008 19:08:10 -0800 Subject: [PATCH 761/923] IB/ipath: Reset the retry counter for RDMA_READ_RESPONSE_MIDDLE packets Reset the retry counter when we get a good RDMA_READ_RESPONSE_MIDDLE packet. This fix will prevent the requester from reporting a retry exceeded error too early. Signed-off-by: Patrick Marchand Latifi --- drivers/infiniband/hw/ipath/ipath_rc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c index 459e46e2c01..40f3e37d7ad 100644 --- a/drivers/infiniband/hw/ipath/ipath_rc.c +++ b/drivers/infiniband/hw/ipath/ipath_rc.c @@ -1196,6 +1196,10 @@ static inline void ipath_rc_rcv_resp(struct ipath_ibdev *dev, list_move_tail(&qp->timerwait, &dev->pending[dev->pending_index]); spin_unlock(&dev->pending_lock); + + if (opcode == OP(RDMA_READ_RESPONSE_MIDDLE)) + qp->s_retry = qp->s_retry_cnt; + /* * Update the RDMA receive state but do the copy w/o * holding the locks and blocking interrupts. -- GitLab From b3e2749bf32f61e7beb259eb7cfb066d2ec6ad65 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Tue, 11 Mar 2008 16:10:02 +0200 Subject: [PATCH 762/923] IPoIB: Don't drop multicast sends when they can be queued When set_multicast_list() is called the multicast task is restarted and the IPOIB_MCAST_STARTED bit is cleared. As a result for some window of time, multicast packets are not transmitted nor queued but rather dropped by ipoib_mcast_send(). These dropped packets are painful in two cases: - bonding fail-over which both calls set_multicast_list() on the new active slave and sends Gratuitous ARP through that slave. - IP_DROP_MEMBERSHIP code which both calls set_multicast_list() on the device and issues IGMP leave. In both these cases, depending on the scheduling of the IPoIB multicast task, the packets would be dropped. As a result, in the bonding case, the failover would not be detected by the peers until their neighbour is renewed the neighbour (which takes a few tens of seconds). In the IGMP case, the IP router doesn't get an IGMP leave and would only learn on that from further probes on the group (also a delay of at least a few tens of seconds). Fix this by allowing transmission (or queuing) depending on the IPOIB_FLAG_OPER_UP flag instead of the IPOIB_MCAST_STARTED flag. Signed-off-by: Olga Shern Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 2628339e3a9..31a53c5bcb1 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -650,7 +650,7 @@ void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb) */ spin_lock(&priv->lock); - if (!test_bit(IPOIB_MCAST_STARTED, &priv->flags) || + if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags) || !priv->broadcast || !test_bit(IPOIB_MCAST_FLAG_ATTACHED, &priv->broadcast->flags)) { ++dev->stats.tx_dropped; -- GitLab From 343c00422d3296838927016750b18ead8aa8bf9a Mon Sep 17 00:00:00 2001 From: Carlos Corbacho Date: Sun, 24 Feb 2008 13:34:18 +0000 Subject: [PATCH 763/923] acer-wmi: Rename mail LED correctly & remove hardcoded colour The mail LED name for acer-wmi currently hardcodes in the colour as green. This is wrong, since many of the newer laptops now come with an orange LED, and we have no way of telling what colour is used on a given system. Also, rename the mail LED to be inline with the current recommendations of the LED class documentation. Signed-off-by: Carlos Corbacho Signed-off-by: Len Brown --- Documentation/laptops/acer-wmi.txt | 2 +- drivers/misc/acer-wmi.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/laptops/acer-wmi.txt b/Documentation/laptops/acer-wmi.txt index b06696329cf..a346c8666d2 100644 --- a/Documentation/laptops/acer-wmi.txt +++ b/Documentation/laptops/acer-wmi.txt @@ -169,7 +169,7 @@ can be added to acer-wmi. The LED is exposed through the LED subsystem, and can be found in: -/sys/devices/platform/acer-wmi/leds/acer-mail:green/ +/sys/devices/platform/acer-wmi/leds/acer-wmi::mail/ The mail LED is autodetected, so if you don't have one, the LED device won't be registered. diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c index 74d12b4a3ab..e85d96f99ae 100644 --- a/drivers/misc/acer-wmi.c +++ b/drivers/misc/acer-wmi.c @@ -761,7 +761,7 @@ enum led_brightness value) } static struct led_classdev mail_led = { - .name = "acer-mail:green", + .name = "acer-wmi::mail", .brightness_set = mail_led_set, }; -- GitLab From 9b963c40306ba6967650dce99f4e823f1da49a60 Mon Sep 17 00:00:00 2001 From: Carlos Corbacho Date: Sun, 24 Feb 2008 13:34:29 +0000 Subject: [PATCH 764/923] acer-wmi: Don't warn if mail LED cannot be detected This warning confuses users, who think it is an error. Not detecting the mail LED simply means it isn't there, so let's not unduly panic users. Signed-off-by: Carlos Corbacho Signed-off-by: Len Brown --- drivers/misc/acer-wmi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c index e85d96f99ae..49846bd2b5c 100644 --- a/drivers/misc/acer-wmi.c +++ b/drivers/misc/acer-wmi.c @@ -1069,10 +1069,8 @@ static int __init acer_wmi_init(void) } } - if (wmi_has_guid(AMW0_GUID1)) { - if (ACPI_FAILURE(AMW0_find_mailled())) - printk(ACER_ERR "Unable to detect mail LED\n"); - } + if (wmi_has_guid(AMW0_GUID1)) + AMW0_find_mailled(); find_quirks(); -- GitLab From a527f2d7fe58ce95bfec998f3dc6f658c777a2f2 Mon Sep 17 00:00:00 2001 From: Carlos Corbacho Date: Sun, 24 Feb 2008 13:34:34 +0000 Subject: [PATCH 765/923] ACPI: WMI: Clean up handling of spec violating data blocks Acer violate the ACPI-WMI spec by declaring some of their data blocks as expensive, but with no corresponding WCxx method. There is already some workaround code in to handle the initial WCxx call (we just ignore a failure here); but we need to properly check if the second, "clean up", WCxx call is actually needed or not, rather than fail simply because it isn't there. Signed-off-by: Carlos Corbacho Signed-off-by: Len Brown --- drivers/acpi/wmi.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/wmi.c b/drivers/acpi/wmi.c index efacc9f8bfe..c33b1c6e93b 100644 --- a/drivers/acpi/wmi.c +++ b/drivers/acpi/wmi.c @@ -293,7 +293,7 @@ struct acpi_buffer *out) { struct guid_block *block = NULL; struct wmi_block *wblock = NULL; - acpi_handle handle; + acpi_handle handle, wc_handle; acpi_status status, wc_status = AE_ERROR; struct acpi_object_list input, wc_input; union acpi_object wc_params[1], wq_params[1]; @@ -338,8 +338,10 @@ struct acpi_buffer *out) * expensive, but have no corresponding WCxx method. So we * should not fail if this happens. */ - wc_status = acpi_evaluate_object(handle, wc_method, - &wc_input, NULL); + wc_status = acpi_get_handle(handle, wc_method, &wc_handle); + if (ACPI_SUCCESS(wc_status)) + wc_status = acpi_evaluate_object(handle, wc_method, + &wc_input, NULL); } strcpy(method, "WQ"); @@ -351,7 +353,7 @@ struct acpi_buffer *out) * If ACPI_WMI_EXPENSIVE, call the relevant WCxx method, even if * the WQxx method failed - we should disable collection anyway. */ - if ((block->flags & ACPI_WMI_EXPENSIVE) && wc_status) { + if ((block->flags & ACPI_WMI_EXPENSIVE) && ACPI_SUCCESS(wc_status)) { wc_params[0].integer.value = 0; status = acpi_evaluate_object(handle, wc_method, &wc_input, NULL); -- GitLab From 5ea3a7480606cef06321cd85bc5113c72d2c7c68 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Date: Tue, 11 Mar 2008 17:55:27 -0700 Subject: [PATCH 766/923] [TCP]: Prevent sending past receiver window with TSO (at last skb) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With TSO it was possible to send past the receiver window when the skb to be sent was the last in the write queue while the receiver window is the limiting factor. One can notice that there's a loophole in the tcp_mss_split_point that lacked a receiver window check for the tcp_write_queue_tail() if also cwnd was smaller than the full skb. Noticed by Thomas Gleixner in form of "Treason uncloaked! Peer ... shrinks window .... Repaired." messages (the peer didn't actually shrink its window as the message suggests, we had just sent something past it without a permission to do so). Signed-off-by: Ilpo Järvinen Tested-by: Thomas Gleixner Signed-off-by: David S. Miller --- net/ipv4/tcp_output.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index ed750f9ceb0..01578f544ad 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1035,6 +1035,13 @@ static void tcp_cwnd_validate(struct sock *sk) * introducing MSS oddities to segment boundaries. In rare cases where * mss_now != mss_cache, we will request caller to create a small skb * per input skb which could be mostly avoided here (if desired). + * + * We explicitly want to create a request for splitting write queue tail + * to a small skb for Nagle purposes while avoiding unnecessary modulos, + * thus all the complexity (cwnd_len is always MSS multiple which we + * return whenever allowed by the other factors). Basically we need the + * modulo only when the receiver window alone is the limiting factor or + * when we would be allowed to send the split-due-to-Nagle skb fully. */ static unsigned int tcp_mss_split_point(struct sock *sk, struct sk_buff *skb, unsigned int mss_now, unsigned int cwnd) @@ -1048,10 +1055,11 @@ static unsigned int tcp_mss_split_point(struct sock *sk, struct sk_buff *skb, if (likely(cwnd_len <= window && skb != tcp_write_queue_tail(sk))) return cwnd_len; - if (skb == tcp_write_queue_tail(sk) && cwnd_len <= skb->len) + needed = min(skb->len, window); + + if (skb == tcp_write_queue_tail(sk) && cwnd_len <= needed) return cwnd_len; - needed = min(skb->len, window); return needed - needed % mss_now; } -- GitLab From b2211a361a4289c83971f89da53fe2eb9e72769d Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 11 Mar 2008 18:03:35 -0700 Subject: [PATCH 767/923] net: fix build with CONFIG_NET=n fs/built-in.o:(.rodata+0x1134): undefined reference to `proc_net_inode_operations' fs/built-in.o:(.rodata+0x1138): undefined reference to `proc_net_operations' Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- fs/proc/base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/proc/base.c b/fs/proc/base.c index cc43cf0c1fa..3217774d269 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2274,7 +2274,9 @@ static const struct pid_entry tgid_base_stuff[] = { DIR("task", S_IRUGO|S_IXUGO, task), DIR("fd", S_IRUSR|S_IXUSR, fd), DIR("fdinfo", S_IRUSR|S_IXUSR, fdinfo), +#ifdef CONFIG_NET DIR("net", S_IRUGO|S_IXUSR, net), +#endif REG("environ", S_IRUSR, environ), INF("auxv", S_IRUSR, pid_auxv), ONE("status", S_IRUGO, pid_status), -- GitLab From 22626216c46f2ec86287e75ea86dd9ac3df54265 Mon Sep 17 00:00:00 2001 From: Chidambar 'ilLogict' Zinnoury Date: Tue, 11 Mar 2008 18:05:02 -0700 Subject: [PATCH 768/923] [SCTP]: Fix local_addr deletions during list traversals. Since the lists are circular, we need to explicitely tag the address to be deleted since we might end up freeing the list head instead. This fixes some interesting SCTP crashes. Signed-off-by: Chidambar 'ilLogict' Zinnoury Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/sctp/bind_addr.c | 4 +++- net/sctp/ipv6.c | 4 +++- net/sctp/protocol.c | 4 +++- 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c index a27511ebc4c..ceefda025e2 100644 --- a/net/sctp/bind_addr.c +++ b/net/sctp/bind_addr.c @@ -209,6 +209,7 @@ int sctp_add_bind_addr(struct sctp_bind_addr *bp, union sctp_addr *new, int sctp_del_bind_addr(struct sctp_bind_addr *bp, union sctp_addr *del_addr) { struct sctp_sockaddr_entry *addr, *temp; + int found = 0; /* We hold the socket lock when calling this function, * and that acts as a writer synchronizing lock. @@ -216,13 +217,14 @@ int sctp_del_bind_addr(struct sctp_bind_addr *bp, union sctp_addr *del_addr) list_for_each_entry_safe(addr, temp, &bp->address_list, list) { if (sctp_cmp_addr_exact(&addr->a, del_addr)) { /* Found the exact match. */ + found = 1; addr->valid = 0; list_del_rcu(&addr->list); break; } } - if (addr && !addr->valid) { + if (found) { call_rcu(&addr->rcu, sctp_local_addr_free); SCTP_DBG_OBJCNT_DEC(addr); return 0; diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index 87f940587d5..9aa0733aee8 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -89,6 +89,7 @@ static int sctp_inet6addr_event(struct notifier_block *this, unsigned long ev, struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr; struct sctp_sockaddr_entry *addr = NULL; struct sctp_sockaddr_entry *temp; + int found = 0; switch (ev) { case NETDEV_UP: @@ -111,13 +112,14 @@ static int sctp_inet6addr_event(struct notifier_block *this, unsigned long ev, &sctp_local_addr_list, list) { if (ipv6_addr_equal(&addr->a.v6.sin6_addr, &ifa->addr)) { + found = 1; addr->valid = 0; list_del_rcu(&addr->list); break; } } spin_unlock_bh(&sctp_local_addr_lock); - if (addr && !addr->valid) + if (found) call_rcu(&addr->rcu, sctp_local_addr_free); break; } diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index 688546dccd8..ad0a4069b95 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -628,6 +628,7 @@ static int sctp_inetaddr_event(struct notifier_block *this, unsigned long ev, struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; struct sctp_sockaddr_entry *addr = NULL; struct sctp_sockaddr_entry *temp; + int found = 0; switch (ev) { case NETDEV_UP: @@ -647,13 +648,14 @@ static int sctp_inetaddr_event(struct notifier_block *this, unsigned long ev, list_for_each_entry_safe(addr, temp, &sctp_local_addr_list, list) { if (addr->a.v4.sin_addr.s_addr == ifa->ifa_local) { + found = 1; addr->valid = 0; list_del_rcu(&addr->list); break; } } spin_unlock_bh(&sctp_local_addr_lock); - if (addr && !addr->valid) + if (found) call_rcu(&addr->rcu, sctp_local_addr_free); break; } -- GitLab From 4200406b8fbbf309f4fffb339bd16c4553ae0c30 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 11 Mar 2008 18:35:20 -0700 Subject: [PATCH 769/923] IPoIB/cm: Set tx_wr.num_sge in connected mode post_send() Commit 7143740d ("IPoIB: Add send gather support") made it possible for tx_wr.num_sge to be != 1 -- this happens if send gather support is enabled. However, the code in the connected mode post_send() function assumes the old invariant, namely that tx_wr.num_sge is always 1. Fix this by explicitly setting tx_wr.num_sge to 1 in the CM post_send(). Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_cm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 52b1bebfa74..4e8d0281f8b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -637,6 +637,7 @@ static inline int post_send(struct ipoib_dev_priv *priv, priv->tx_sge[0].addr = addr; priv->tx_sge[0].length = len; + priv->tx_wr.num_sge = 1; priv->tx_wr.wr_id = wr_id | IPOIB_OP_CM; return ib_post_send(tx->qp, &priv->tx_wr, &bad_wr); -- GitLab From 7c0ea45be4f114d85ee35caeead8e1660699c46f Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Tue, 11 Mar 2008 16:56:47 +0800 Subject: [PATCH 770/923] ACPI: Ignore _BQC object when registering backlight device According to acpi spec , the objects of _BCL and _BCM are required if integrated LCD is present and supports brightness level .The _BQC is the optional object. So the _BQC object is ignored when the backlight device is registered in ACPI video driver. http://bugzilla.kernel.org/show_bug.cgi?id=10206 Signed-off-by: Zhao Yakui Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/video.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 12cce69b544..ace958cb389 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -713,7 +713,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) kfree(obj); - if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){ + if (device->cap._BCL && device->cap._BCM && max_level > 0) { int result; static int count = 0; char *name; -- GitLab From a82f7119fd940c1505fc9fdf93d835fa52bc075d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 12 Mar 2008 00:34:57 +0100 Subject: [PATCH 771/923] Hibernation: Fix mark_nosave_pages() There is a problem in the hibernation code that triggers on some NUMA systems on which pfn_valid() returns 'true' for some PFNs that don't belong to any zone. Namely, there is a BUG_ON() in memory_bm_find_bit() that triggers for PFNs not belonging to any zone and passing the pfn_valid() test. On the affected systems it triggers when we mark PFNs reported by the platform as not saveable, because the PFNs in question belong to a region mapped directly using iorepam() (i.e. the ACPI data area) and they pass the pfn_valid() test. Modify memory_bm_find_bit() so that it returns an error if given PFN doesn't belong to any zone instead of crashing the kernel and ignore the result returned by it in mark_nosave_pages(), while marking the "nosave" memory regions. This doesn't affect the hibernation functionality, as we won't touch the PFNs in question anyway. http://bugzilla.kernel.org/show_bug.cgi?id=9966 . Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- kernel/power/snapshot.c | 41 ++++++++++++++++++++++++++++++++++------- 1 file changed, 34 insertions(+), 7 deletions(-) diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index 72a020cabb4..5f91a07c4ea 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -447,7 +447,7 @@ static void memory_bm_free(struct memory_bitmap *bm, int clear_nosave_free) * of @bm->cur_zone_bm are updated. */ -static void memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn, +static int memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn, void **addr, unsigned int *bit_nr) { struct zone_bitmap *zone_bm; @@ -461,7 +461,8 @@ static void memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn, while (pfn < zone_bm->start_pfn || pfn >= zone_bm->end_pfn) { zone_bm = zone_bm->next; - BUG_ON(!zone_bm); + if (!zone_bm) + return -EFAULT; } bm->cur.zone_bm = zone_bm; } @@ -479,23 +480,40 @@ static void memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn, pfn -= bb->start_pfn; *bit_nr = pfn % BM_BITS_PER_CHUNK; *addr = bb->data + pfn / BM_BITS_PER_CHUNK; + return 0; } static void memory_bm_set_bit(struct memory_bitmap *bm, unsigned long pfn) { void *addr; unsigned int bit; + int error; - memory_bm_find_bit(bm, pfn, &addr, &bit); + error = memory_bm_find_bit(bm, pfn, &addr, &bit); + BUG_ON(error); set_bit(bit, addr); } +static int mem_bm_set_bit_check(struct memory_bitmap *bm, unsigned long pfn) +{ + void *addr; + unsigned int bit; + int error; + + error = memory_bm_find_bit(bm, pfn, &addr, &bit); + if (!error) + set_bit(bit, addr); + return error; +} + static void memory_bm_clear_bit(struct memory_bitmap *bm, unsigned long pfn) { void *addr; unsigned int bit; + int error; - memory_bm_find_bit(bm, pfn, &addr, &bit); + error = memory_bm_find_bit(bm, pfn, &addr, &bit); + BUG_ON(error); clear_bit(bit, addr); } @@ -503,8 +521,10 @@ static int memory_bm_test_bit(struct memory_bitmap *bm, unsigned long pfn) { void *addr; unsigned int bit; + int error; - memory_bm_find_bit(bm, pfn, &addr, &bit); + error = memory_bm_find_bit(bm, pfn, &addr, &bit); + BUG_ON(error); return test_bit(bit, addr); } @@ -709,8 +729,15 @@ static void mark_nosave_pages(struct memory_bitmap *bm) region->end_pfn << PAGE_SHIFT); for (pfn = region->start_pfn; pfn < region->end_pfn; pfn++) - if (pfn_valid(pfn)) - memory_bm_set_bit(bm, pfn); + if (pfn_valid(pfn)) { + /* + * It is safe to ignore the result of + * mem_bm_set_bit_check() here, since we won't + * touch the PFNs for which the error is + * returned anyway. + */ + mem_bm_set_bit_check(bm, pfn); + } } } -- GitLab From 391df5dce30a5aab477b9e55ea65a3e83bae96b1 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 11 Mar 2008 13:45:15 -0700 Subject: [PATCH 772/923] ACPI: add _PRT quirks to work around broken firmware This patch works around incorrect _PRT (PCI interrupt routing) information from firmware. This does not fix any regressions and can wait for the next kernel release. On the Medion MD9580-F laptop, the BIOS says the builtin RTL8139 NIC interrupt at 00:09.0[A] is connected to \_SB.PCI0.ISA.LNKA, but it's really connected to \_SB.PCI0.ISA.LNKB. Before this patch, the workaround was to use "pci=routeirq". More details at http://bugzilla.kernel.org/show_bug.cgi?id=4773. On the Dell OptiPlex GX1, the BIOS says the PCI slot interrupt 00:0d[A] is connected to LNKB, but it's really connected to LNKA. Before this patch, the workaround was to use "pci=routeirq". Pierre Ossman tested a previous version of this patch and confirmed that it fixed the problem. More details at http://bugzilla.kernel.org/show_bug.cgi?id=5044. On the HP t5710 thin client, the BIOS says the builtin Radeon video interrupt at 01:00[A] is connected to LNK1, but it's really connected to LNK3. The previous workaround was to use a custom DSDT. I tested this patch and verified that it fixes the problem. More details at http://bugzilla.kernel.org/show_bug.cgi?id=10138. Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown --- drivers/acpi/pci_irq.c | 98 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index 7f19859580c..7af414a3c63 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -25,6 +25,7 @@ */ +#include #include #include #include @@ -76,6 +77,101 @@ static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment, return NULL; } +/* http://bugzilla.kernel.org/show_bug.cgi?id=4773 */ +static struct dmi_system_id medion_md9580[] = { + { + .ident = "Medion MD9580-F laptop", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"), + DMI_MATCH(DMI_PRODUCT_NAME, "A555"), + }, + }, + { } +}; + +/* http://bugzilla.kernel.org/show_bug.cgi?id=5044 */ +static struct dmi_system_id dell_optiplex[] = { + { + .ident = "Dell Optiplex GX1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX1 600S+"), + }, + }, + { } +}; + +/* http://bugzilla.kernel.org/show_bug.cgi?id=10138 */ +static struct dmi_system_id hp_t5710[] = { + { + .ident = "HP t5710", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "hp t5000 series"), + DMI_MATCH(DMI_BOARD_NAME, "098Ch"), + }, + }, + { } +}; + +struct prt_quirk { + struct dmi_system_id *system; + unsigned int segment; + unsigned int bus; + unsigned int device; + unsigned char pin; + char *source; /* according to BIOS */ + char *actual_source; +}; + +/* + * These systems have incorrect _PRT entries. The BIOS claims the PCI + * interrupt at the listed segment/bus/device/pin is connected to the first + * link device, but it is actually connected to the second. + */ +static struct prt_quirk prt_quirks[] = { + { medion_md9580, 0, 0, 9, 'A', + "\\_SB_.PCI0.ISA.LNKA", + "\\_SB_.PCI0.ISA.LNKB"}, + { dell_optiplex, 0, 0, 0xd, 'A', + "\\_SB_.LNKB", + "\\_SB_.LNKA"}, + { hp_t5710, 0, 0, 1, 'A', + "\\_SB_.PCI0.LNK1", + "\\_SB_.PCI0.LNK3"}, +}; + +static void +do_prt_fixups(struct acpi_prt_entry *entry, struct acpi_pci_routing_table *prt) +{ + int i; + struct prt_quirk *quirk; + + for (i = 0; i < ARRAY_SIZE(prt_quirks); i++) { + quirk = &prt_quirks[i]; + + /* All current quirks involve link devices, not GSIs */ + if (!prt->source) + continue; + + if (dmi_check_system(quirk->system) && + entry->id.segment == quirk->segment && + entry->id.bus == quirk->bus && + entry->id.device == quirk->device && + entry->pin + 'A' == quirk->pin && + !strcmp(prt->source, quirk->source) && + strlen(prt->source) >= strlen(quirk->actual_source)) { + printk(KERN_WARNING PREFIX "firmware reports " + "%04x:%02x:%02x[%c] connected to %s; " + "changing to %s\n", + entry->id.segment, entry->id.bus, + entry->id.device, 'A' + entry->pin, + prt->source, quirk->actual_source); + strcpy(prt->source, quirk->actual_source); + } + } +} + static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus, struct acpi_pci_routing_table *prt) @@ -96,6 +192,8 @@ acpi_pci_irq_add_entry(acpi_handle handle, entry->id.function = prt->address & 0xFFFF; entry->pin = prt->pin; + do_prt_fixups(entry, prt); + /* * Type 1: Dynamic * --------------- -- GitLab From b6a163875935ce8e8e85901a7f2b68f7a314d914 Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Wed, 12 Mar 2008 01:06:24 +0100 Subject: [PATCH 773/923] ACPICA: Warn if packages with invalid references are evaluated And return an error to avoid NULL pointer access by the caller Lin Ming's patch avoids corrupted mem access when BIOS has invalid references included, the handle is now zero instead of corrupted. Signed-off-by: Thomas Renninger Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/utils.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index eba55b7d6c9..44ea60cf21c 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -407,6 +407,12 @@ acpi_evaluate_reference(acpi_handle handle, break; } + if (!element->reference.handle) { + printk(KERN_WARNING PREFIX "Invalid reference in" + " package %s\n", pathname); + status = AE_NULL_ENTRY; + break; + } /* Get the acpi_handle. */ list->handles[i] = element->reference.handle; -- GitLab From a09a20b526fde0611b49b76521e3c546a47216a5 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 4 Mar 2008 13:41:26 -0800 Subject: [PATCH 774/923] laptops: move laptop-mode.txt to Documentation/laptops/ Move laptop-mode.txt into the laptops/ sub-directory to consolidate laptop doc files there. Update references to the file's location. Signed-off-by: Randy Dunlap Signed-off-by: Len Brown --- Documentation/00-INDEX | 2 -- Documentation/filesystems/proc.txt | 4 ++-- Documentation/laptops/00-INDEX | 2 ++ Documentation/{ => laptops}/laptop-mode.txt | 0 4 files changed, 4 insertions(+), 4 deletions(-) rename Documentation/{ => laptops}/laptop-mode.txt (100%) diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 042073f656e..1d51c0c5781 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -225,8 +225,6 @@ kprobes.txt - documents the kernel probes debugging feature. kref.txt - docs on adding reference counters (krefs) to kernel objects. -laptop-mode.txt - - how to conserve battery power using laptop-mode. laptops/ - directory with laptop related info and laptop driver documentation. ldm.txt diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index 5681e2fa149..518ebe609e2 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -1506,13 +1506,13 @@ laptop_mode ----------- laptop_mode is a knob that controls "laptop mode". All the things that are -controlled by this knob are discussed in Documentation/laptop-mode.txt. +controlled by this knob are discussed in Documentation/laptops/laptop-mode.txt. block_dump ---------- block_dump enables block I/O debugging when set to a nonzero value. More -information on block I/O debugging is in Documentation/laptop-mode.txt. +information on block I/O debugging is in Documentation/laptops/laptop-mode.txt. swap_token_timeout ------------------ diff --git a/Documentation/laptops/00-INDEX b/Documentation/laptops/00-INDEX index 729c2c062e1..ee5692b26dd 100644 --- a/Documentation/laptops/00-INDEX +++ b/Documentation/laptops/00-INDEX @@ -2,6 +2,8 @@ - This file acer-wmi.txt - information on the Acer Laptop WMI Extras driver. +laptop-mode.txt + - how to conserve battery power using laptop-mode. sony-laptop.txt - Sony Notebook Control Driver (SNC) Readme. sonypi.txt diff --git a/Documentation/laptop-mode.txt b/Documentation/laptops/laptop-mode.txt similarity index 100% rename from Documentation/laptop-mode.txt rename to Documentation/laptops/laptop-mode.txt -- GitLab From 5edc68b8530ff1b3133d057350da98c93cca5a82 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 12 Mar 2008 14:15:00 +0100 Subject: [PATCH 775/923] i2c-amd756: Fix off-by-one This patch fixes an off-by-one error spotted by the Coverity checker. Signed-off-by: Adrian Bunk Signed-off-by: Jean Delvare --- drivers/i2c/busses/i2c-amd756.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c index 573abe44084..2fa43183d37 100644 --- a/drivers/i2c/busses/i2c-amd756.c +++ b/drivers/i2c/busses/i2c-amd756.c @@ -335,7 +335,7 @@ static int __devinit amd756_probe(struct pci_dev *pdev, u8 temp; /* driver_data might come from user-space, so check it */ - if (id->driver_data > ARRAY_SIZE(chipname)) + if (id->driver_data >= ARRAY_SIZE(chipname)) return -EINVAL; if (amd756_ioport) { -- GitLab From 50c3304a5e1e5217fc6b58fb686edc7d1114f2fa Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 12 Mar 2008 14:15:00 +0100 Subject: [PATCH 776/923] i2c: Keep client->driver and client->dev.driver in sync Ensure that client->driver is set to NULL if the probe() returns an error (this keeps client->driver and client->dev.driver in sync). Signed-off-by: Hans Verkuil Acked-by: David Brownell Signed-off-by: Jean Delvare --- drivers/i2c/i2c-core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 96da22e9a5a..fd84b2a3633 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -90,12 +90,16 @@ static int i2c_device_probe(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct i2c_driver *driver = to_i2c_driver(dev->driver); + int status; if (!driver->probe) return -ENODEV; client->driver = driver; dev_dbg(dev, "probe\n"); - return driver->probe(client); + status = driver->probe(client); + if (status) + client->driver = NULL; + return status; } static int i2c_device_remove(struct device *dev) -- GitLab From 3d706d952cf238a60c5571e33329448b453a2ab9 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Wed, 12 Mar 2008 14:15:00 +0100 Subject: [PATCH 777/923] i2c: chips subdirectory is deprecated Let driver authors know that drivers/i2c/chips is usually the wrong place for new drivers. Signed-off-by: Jean Delvare --- drivers/i2c/chips/Makefile | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile index 501f00cea78..e47aca0ca5a 100644 --- a/drivers/i2c/chips/Makefile +++ b/drivers/i2c/chips/Makefile @@ -1,6 +1,13 @@ # # Makefile for miscellaneous I2C chip drivers. # +# Think twice before you add a new driver to this directory. +# Device drivers are better grouped according to the functionality they +# implement rather than to the bus they are connected to. In particular: +# * Hardware monitoring chip drivers go to drivers/hwmon +# * RTC chip drivers go to drivers/rtc +# * I/O expander drivers go to drivers/gpio +# obj-$(CONFIG_DS1682) += ds1682.o obj-$(CONFIG_SENSORS_EEPROM) += eeprom.o -- GitLab From 0ec734c2b8b005667ffdaef8610d1024630683b0 Mon Sep 17 00:00:00 2001 From: Wolfgang Ocker Date: Sun, 10 Feb 2008 20:31:33 +0100 Subject: [PATCH 778/923] [MIPS] Alchemy: Fix ids in Alchemy db dma device table 0 is a valid device id (DSCR_CMD0_UART0_TX), so we can't use it to mark an empty entry in the device table. Use ~0 instead and search for id ~0 when looking for a free entry. Signed-off-by: Wolfgang Ocker Signed-off-by: Ralf Baechle --- arch/mips/au1000/common/dbdma.c | 34 ++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/arch/mips/au1000/common/dbdma.c b/arch/mips/au1000/common/dbdma.c index 428ed275a0f..57f17b41098 100644 --- a/arch/mips/au1000/common/dbdma.c +++ b/arch/mips/au1000/common/dbdma.c @@ -161,22 +161,22 @@ static dbdev_tab_t dbdev_tab[] = { { DSCR_CMD0_ALWAYS, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 }, /* Provide 16 user definable device types */ - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, + { ~0, 0, 0, 0, 0, 0, 0 }, }; #define DBDEV_TAB_SIZE ARRAY_SIZE(dbdev_tab) @@ -209,7 +209,7 @@ au1xxx_ddma_add_device(dbdev_tab_t *dev) dbdev_tab_t *p=NULL; static u16 new_id=0x1000; - p = find_dbdev_id(0); + p = find_dbdev_id(~0); if ( NULL != p ) { memcpy(p, dev, sizeof(dbdev_tab_t)); -- GitLab From 1f5826bd0ed6c0abec3da28dfffb8d12f0c2cb81 Mon Sep 17 00:00:00 2001 From: Chris Dearman Date: Mon, 8 May 2006 18:02:16 +0100 Subject: [PATCH 779/923] [MIPS] Added missing cases for rdhwr emulation Some of these are architecturally required for R2 processors so lets try to be bit closer to the real thing. This also provides access to the CPU cycle timer, even on multiprocessors. In that aspect its currently bug compatible to what would happen on a R2-based SMP. Signed-off-by: Chris Dearman Signed-off-by: Ralf Baechle --- arch/mips/kernel/traps.c | 31 +++++++++++++++++++++++++------ 1 file changed, 25 insertions(+), 6 deletions(-) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index fcae6675297..79cf7e913b9 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -534,8 +534,7 @@ static int simulate_llsc(struct pt_regs *regs, unsigned int opcode) /* * Simulate trapping 'rdhwr' instructions to provide user accessible - * registers not implemented in hardware. The only current use of this - * is the thread area pointer. + * registers not implemented in hardware. */ static int simulate_rdhwr(struct pt_regs *regs, unsigned int opcode) { @@ -545,11 +544,31 @@ static int simulate_rdhwr(struct pt_regs *regs, unsigned int opcode) int rd = (opcode & RD) >> 11; int rt = (opcode & RT) >> 16; switch (rd) { - case 29: - regs->regs[rt] = ti->tp_value; - return 0; + case 0: /* CPU number */ + regs->regs[rt] = smp_processor_id(); + return 0; + case 1: /* SYNCI length */ + regs->regs[rt] = min(current_cpu_data.dcache.linesz, + current_cpu_data.icache.linesz); + return 0; + case 2: /* Read count register */ + regs->regs[rt] = read_c0_count(); + return 0; + case 3: /* Count register resolution */ + switch (current_cpu_data.cputype) { + case CPU_20KC: + case CPU_25KF: + regs->regs[rt] = 1; + break; default: - return -1; + regs->regs[rt] = 2; + } + return 0; + case 29: + regs->regs[rt] = ti->tp_value; + return 0; + default: + return -1; } } -- GitLab From 0f87358587ad8326b589edb42dcf6e07afbab6de Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 25 Feb 2008 16:55:29 +0000 Subject: [PATCH 780/923] [MIPS] Allow 48Hz to be selected if CONFIG_SYS_SUPPORTS_ARBIT_HZ is set. This allows a 48Hz clock to be selected on Malta and other systems. Note this not normally a sensible option as it results in rather high latencies for some kernel stuff. Signed-off-by: Ralf Baechle --- arch/mips/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index ade230d445d..8724ed3298d 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1824,7 +1824,7 @@ choice Allows the configuration of the timer frequency. config HZ_48 - bool "48 HZ" if SYS_SUPPORTS_48HZ + bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ config HZ_100 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ -- GitLab From de0c16985dbc04c11bf3c44df30030df5d060963 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 26 Feb 2008 21:54:54 +0200 Subject: [PATCH 781/923] [MIPS] Use KBUILD_DEFCONFIG With KBUILD_DEFCONFIG we don't have to ship a second copy of ip22_defconfig. Signed-off-by: Adrian Bunk Signed-off-by: Ralf Baechle --- arch/mips/Makefile | 2 + arch/mips/defconfig | 1158 ------------------------------------------- 2 files changed, 2 insertions(+), 1158 deletions(-) delete mode 100644 arch/mips/defconfig diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 3fb7f3065c9..72097dacabd 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -12,6 +12,8 @@ # for "archclean" cleaning up for this architecture. # +KBUILD_DEFCONFIG := ip22_defconfig + cflags-y := # diff --git a/arch/mips/defconfig b/arch/mips/defconfig deleted file mode 100644 index 4f5e56c9335..00000000000 --- a/arch/mips/defconfig +++ /dev/null @@ -1,1158 +0,0 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.23-rc2 -# Tue Aug 7 12:39:49 2007 -# -CONFIG_MIPS=y - -# -# Machine selection -# -CONFIG_ZONE_DMA=y -# CONFIG_MACH_ALCHEMY is not set -# CONFIG_BASLER_EXCITE is not set -# CONFIG_MIPS_COBALT is not set -# CONFIG_MACH_DECSTATION is not set -# CONFIG_MACH_JAZZ is not set -# CONFIG_LEMOTE_FULONG is not set -# CONFIG_MIPS_ATLAS is not set -# CONFIG_MIPS_MALTA is not set -# CONFIG_MIPS_SEAD is not set -# CONFIG_MIPS_SIM is not set -# CONFIG_MARKEINS is not set -# CONFIG_MACH_VR41XX is not set -# CONFIG_PNX8550_JBS is not set -# CONFIG_PNX8550_STB810 is not set -# CONFIG_PMC_MSP is not set -# CONFIG_PMC_YOSEMITE is not set -CONFIG_SGI_IP22=y -# CONFIG_SGI_IP27 is not set -# CONFIG_SGI_IP32 is not set -# CONFIG_SIBYTE_CRHINE is not set -# CONFIG_SIBYTE_CARMEL is not set -# CONFIG_SIBYTE_CRHONE is not set -# CONFIG_SIBYTE_RHONE is not set -# CONFIG_SIBYTE_SWARM is not set -# CONFIG_SIBYTE_LITTLESUR is not set -# CONFIG_SIBYTE_SENTOSA is not set -# CONFIG_SIBYTE_BIGSUR is not set -# CONFIG_SNI_RM is not set -# CONFIG_TOSHIBA_JMR3927 is not set -# CONFIG_TOSHIBA_RBTX4927 is not set -# CONFIG_TOSHIBA_RBTX4938 is not set -# CONFIG_WR_PPMC is not set -CONFIG_RWSEM_GENERIC_SPINLOCK=y -# CONFIG_ARCH_HAS_ILOG2_U32 is not set -# CONFIG_ARCH_HAS_ILOG2_U64 is not set -CONFIG_GENERIC_FIND_NEXT_BIT=y -CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y -CONFIG_GENERIC_TIME=y -CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y -# CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ is not set -CONFIG_ARC=y -CONFIG_DMA_NONCOHERENT=y -CONFIG_DMA_NEED_PCI_MAP_STATE=y -CONFIG_EARLY_PRINTK=y -CONFIG_SYS_HAS_EARLY_PRINTK=y -# CONFIG_NO_IOPORT is not set -CONFIG_GENERIC_ISA_DMA_SUPPORT_BROKEN=y -CONFIG_CPU_BIG_ENDIAN=y -# CONFIG_CPU_LITTLE_ENDIAN is not set -CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y -CONFIG_IRQ_CPU=y -CONFIG_SWAP_IO_SPACE=y -CONFIG_ARC32=y -CONFIG_BOOT_ELF32=y -CONFIG_MIPS_L1_CACHE_SHIFT=5 -CONFIG_ARC_CONSOLE=y -CONFIG_ARC_PROMLIB=y - -# -# CPU selection -# -# CONFIG_CPU_LOONGSON2 is not set -# CONFIG_CPU_MIPS32_R1 is not set -# CONFIG_CPU_MIPS32_R2 is not set -# CONFIG_CPU_MIPS64_R1 is not set -# CONFIG_CPU_MIPS64_R2 is not set -# CONFIG_CPU_R3000 is not set -# CONFIG_CPU_TX39XX is not set -# CONFIG_CPU_VR41XX is not set -# CONFIG_CPU_R4300 is not set -# CONFIG_CPU_R4X00 is not set -# CONFIG_CPU_TX49XX is not set -CONFIG_CPU_R5000=y -# CONFIG_CPU_R5432 is not set -# CONFIG_CPU_R6000 is not set -# CONFIG_CPU_NEVADA is not set -# CONFIG_CPU_R8000 is not set -# CONFIG_CPU_R10000 is not set -# CONFIG_CPU_RM7000 is not set -# CONFIG_CPU_RM9000 is not set -# CONFIG_CPU_SB1 is not set -CONFIG_SYS_HAS_CPU_R4X00=y -CONFIG_SYS_HAS_CPU_R5000=y -CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y -CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y -CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y -CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y - -# -# Kernel type -# -CONFIG_32BIT=y -# CONFIG_64BIT is not set -CONFIG_PAGE_SIZE_4KB=y -# CONFIG_PAGE_SIZE_8KB is not set -# CONFIG_PAGE_SIZE_16KB is not set -# CONFIG_PAGE_SIZE_64KB is not set -CONFIG_BOARD_SCACHE=y -CONFIG_IP22_CPU_SCACHE=y -CONFIG_MIPS_MT_DISABLED=y -# CONFIG_MIPS_MT_SMP is not set -# CONFIG_MIPS_MT_SMTC is not set -CONFIG_CPU_HAS_LLSC=y -CONFIG_CPU_HAS_SYNC=y -CONFIG_GENERIC_HARDIRQS=y -CONFIG_GENERIC_IRQ_PROBE=y -CONFIG_ARCH_FLATMEM_ENABLE=y -CONFIG_SELECT_MEMORY_MODEL=y -CONFIG_FLATMEM_MANUAL=y -# CONFIG_DISCONTIGMEM_MANUAL is not set -# CONFIG_SPARSEMEM_MANUAL is not set -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y -# CONFIG_SPARSEMEM_STATIC is not set -CONFIG_SPLIT_PTLOCK_CPUS=4 -# CONFIG_RESOURCES_64BIT is not set -CONFIG_ZONE_DMA_FLAG=1 -CONFIG_BOUNCE=y -CONFIG_VIRT_TO_BUS=y -# CONFIG_HZ_48 is not set -# CONFIG_HZ_100 is not set -# CONFIG_HZ_128 is not set -# CONFIG_HZ_250 is not set -# CONFIG_HZ_256 is not set -CONFIG_HZ_1000=y -# CONFIG_HZ_1024 is not set -CONFIG_SYS_SUPPORTS_ARBIT_HZ=y -CONFIG_HZ=1000 -# CONFIG_PREEMPT_NONE is not set -CONFIG_PREEMPT_VOLUNTARY=y -# CONFIG_PREEMPT is not set -# CONFIG_KEXEC is not set -CONFIG_SECCOMP=y -CONFIG_LOCKDEP_SUPPORT=y -CONFIG_STACKTRACE_SUPPORT=y -CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" - -# -# General setup -# -CONFIG_EXPERIMENTAL=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 -CONFIG_LOCALVERSION="" -CONFIG_LOCALVERSION_AUTO=y -CONFIG_SWAP=y -CONFIG_SYSVIPC=y -CONFIG_SYSVIPC_SYSCTL=y -# CONFIG_POSIX_MQUEUE is not set -# CONFIG_BSD_PROCESS_ACCT is not set -# CONFIG_TASKSTATS is not set -# CONFIG_USER_NS is not set -# CONFIG_AUDIT is not set -CONFIG_IKCONFIG=y -CONFIG_IKCONFIG_PROC=y -CONFIG_LOG_BUF_SHIFT=14 -CONFIG_SYSFS_DEPRECATED=y -CONFIG_RELAY=y -# CONFIG_BLK_DEV_INITRD is not set -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_SYSCTL=y -CONFIG_EMBEDDED=y -CONFIG_SYSCTL_SYSCALL=y -CONFIG_KALLSYMS=y -# CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_HOTPLUG is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -CONFIG_ELF_CORE=y -CONFIG_BASE_FULL=y -CONFIG_FUTEX=y -CONFIG_ANON_INODES=y -CONFIG_EPOLL=y -CONFIG_SIGNALFD=y -CONFIG_TIMERFD=y -CONFIG_EVENTFD=y -CONFIG_SHMEM=y -CONFIG_VM_EVENT_COUNTERS=y -CONFIG_SLAB=y -# CONFIG_SLUB is not set -# CONFIG_SLOB is not set -CONFIG_RT_MUTEXES=y -# CONFIG_TINY_SHMEM is not set -CONFIG_BASE_SMALL=0 -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -# CONFIG_MODULE_FORCE_UNLOAD is not set -CONFIG_MODVERSIONS=y -CONFIG_MODULE_SRCVERSION_ALL=y -CONFIG_KMOD=y -CONFIG_BLOCK=y -# CONFIG_LBD is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_LSF is not set -# CONFIG_BLK_DEV_BSG is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -CONFIG_IOSCHED_AS=y -CONFIG_IOSCHED_DEADLINE=y -CONFIG_IOSCHED_CFQ=y -CONFIG_DEFAULT_AS=y -# CONFIG_DEFAULT_DEADLINE is not set -# CONFIG_DEFAULT_CFQ is not set -# CONFIG_DEFAULT_NOOP is not set -CONFIG_DEFAULT_IOSCHED="anticipatory" - -# -# Bus options (PCI, PCMCIA, EISA, ISA, TC) -# -CONFIG_HW_HAS_EISA=y -# CONFIG_ARCH_SUPPORTS_MSI is not set -# CONFIG_EISA is not set -CONFIG_MMU=y - -# -# PCCARD (PCMCIA/CardBus) support -# - -# -# Executable file formats -# -CONFIG_BINFMT_ELF=y -CONFIG_BINFMT_MISC=m -CONFIG_TRAD_SIGNALS=y - -# -# Power management options -# -CONFIG_PM=y -# CONFIG_PM_LEGACY is not set -# CONFIG_PM_DEBUG is not set -# CONFIG_SUSPEND is not set - -# -# Networking -# -CONFIG_NET=y - -# -# Networking options -# -CONFIG_PACKET=y -CONFIG_PACKET_MMAP=y -CONFIG_UNIX=y -CONFIG_XFRM=y -CONFIG_XFRM_USER=m -# CONFIG_XFRM_SUB_POLICY is not set -CONFIG_XFRM_MIGRATE=y -CONFIG_NET_KEY=y -CONFIG_NET_KEY_MIGRATE=y -CONFIG_INET=y -CONFIG_IP_MULTICAST=y -# CONFIG_IP_ADVANCED_ROUTER is not set -CONFIG_IP_FIB_HASH=y -CONFIG_IP_PNP=y -# CONFIG_IP_PNP_DHCP is not set -CONFIG_IP_PNP_BOOTP=y -# CONFIG_IP_PNP_RARP is not set -# CONFIG_NET_IPIP is not set -# CONFIG_NET_IPGRE is not set -# CONFIG_IP_MROUTE is not set -# CONFIG_ARPD is not set -# CONFIG_SYN_COOKIES is not set -CONFIG_INET_AH=m -CONFIG_INET_ESP=m -CONFIG_INET_IPCOMP=m -CONFIG_INET_XFRM_TUNNEL=m -CONFIG_INET_TUNNEL=m -CONFIG_INET_XFRM_MODE_TRANSPORT=m -CONFIG_INET_XFRM_MODE_TUNNEL=m -CONFIG_INET_XFRM_MODE_BEET=m -CONFIG_INET_DIAG=y -CONFIG_INET_TCP_DIAG=y -# CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_CUBIC=y -CONFIG_DEFAULT_TCP_CONG="cubic" -CONFIG_TCP_MD5SIG=y -CONFIG_IP_VS=m -# CONFIG_IP_VS_DEBUG is not set -CONFIG_IP_VS_TAB_BITS=12 - -# -# IPVS transport protocol load balancing support -# -CONFIG_IP_VS_PROTO_TCP=y -CONFIG_IP_VS_PROTO_UDP=y -CONFIG_IP_VS_PROTO_ESP=y -CONFIG_IP_VS_PROTO_AH=y - -# -# IPVS scheduler -# -CONFIG_IP_VS_RR=m -CONFIG_IP_VS_WRR=m -CONFIG_IP_VS_LC=m -CONFIG_IP_VS_WLC=m -CONFIG_IP_VS_LBLC=m -CONFIG_IP_VS_LBLCR=m -CONFIG_IP_VS_DH=m -CONFIG_IP_VS_SH=m -CONFIG_IP_VS_SED=m -CONFIG_IP_VS_NQ=m - -# -# IPVS application helper -# -CONFIG_IP_VS_FTP=m -CONFIG_IPV6=m -CONFIG_IPV6_PRIVACY=y -CONFIG_IPV6_ROUTER_PREF=y -CONFIG_IPV6_ROUTE_INFO=y -CONFIG_IPV6_OPTIMISTIC_DAD=y -CONFIG_INET6_AH=m -CONFIG_INET6_ESP=m -CONFIG_INET6_IPCOMP=m -CONFIG_IPV6_MIP6=m -CONFIG_INET6_XFRM_TUNNEL=m -CONFIG_INET6_TUNNEL=m -CONFIG_INET6_XFRM_MODE_TRANSPORT=m -CONFIG_INET6_XFRM_MODE_TUNNEL=m -CONFIG_INET6_XFRM_MODE_BEET=m -CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m -CONFIG_IPV6_SIT=m -CONFIG_IPV6_TUNNEL=m -CONFIG_IPV6_MULTIPLE_TABLES=y -CONFIG_IPV6_SUBTREES=y -CONFIG_NETWORK_SECMARK=y -CONFIG_NETFILTER=y -# CONFIG_NETFILTER_DEBUG is not set - -# -# Core Netfilter Configuration -# -CONFIG_NETFILTER_NETLINK=m -CONFIG_NETFILTER_NETLINK_QUEUE=m -CONFIG_NETFILTER_NETLINK_LOG=m -CONFIG_NF_CONNTRACK_ENABLED=m -CONFIG_NF_CONNTRACK=m -CONFIG_NF_CT_ACCT=y -CONFIG_NF_CONNTRACK_MARK=y -CONFIG_NF_CONNTRACK_SECMARK=y -CONFIG_NF_CONNTRACK_EVENTS=y -CONFIG_NF_CT_PROTO_GRE=m -CONFIG_NF_CT_PROTO_SCTP=m -CONFIG_NF_CT_PROTO_UDPLITE=m -CONFIG_NF_CONNTRACK_AMANDA=m -CONFIG_NF_CONNTRACK_FTP=m -CONFIG_NF_CONNTRACK_H323=m -CONFIG_NF_CONNTRACK_IRC=m -# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set -CONFIG_NF_CONNTRACK_PPTP=m -CONFIG_NF_CONNTRACK_SANE=m -CONFIG_NF_CONNTRACK_SIP=m -CONFIG_NF_CONNTRACK_TFTP=m -CONFIG_NF_CT_NETLINK=m -CONFIG_NETFILTER_XTABLES=m -CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m -CONFIG_NETFILTER_XT_TARGET_CONNMARK=m -CONFIG_NETFILTER_XT_TARGET_DSCP=m -CONFIG_NETFILTER_XT_TARGET_MARK=m -CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m -CONFIG_NETFILTER_XT_TARGET_NFLOG=m -CONFIG_NETFILTER_XT_TARGET_NOTRACK=m -CONFIG_NETFILTER_XT_TARGET_TRACE=m -CONFIG_NETFILTER_XT_TARGET_SECMARK=m -CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m -CONFIG_NETFILTER_XT_TARGET_TCPMSS=m -CONFIG_NETFILTER_XT_MATCH_COMMENT=m -CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m -CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m -CONFIG_NETFILTER_XT_MATCH_CONNMARK=m -CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m -CONFIG_NETFILTER_XT_MATCH_DCCP=m -CONFIG_NETFILTER_XT_MATCH_DSCP=m -CONFIG_NETFILTER_XT_MATCH_ESP=m -CONFIG_NETFILTER_XT_MATCH_HELPER=m -CONFIG_NETFILTER_XT_MATCH_LENGTH=m -CONFIG_NETFILTER_XT_MATCH_LIMIT=m -CONFIG_NETFILTER_XT_MATCH_MAC=m -CONFIG_NETFILTER_XT_MATCH_MARK=m -CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m -CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m -CONFIG_NETFILTER_XT_MATCH_QUOTA=m -CONFIG_NETFILTER_XT_MATCH_REALM=m -CONFIG_NETFILTER_XT_MATCH_SCTP=m -CONFIG_NETFILTER_XT_MATCH_STATE=m -CONFIG_NETFILTER_XT_MATCH_STATISTIC=m -CONFIG_NETFILTER_XT_MATCH_STRING=m -CONFIG_NETFILTER_XT_MATCH_TCPMSS=m -CONFIG_NETFILTER_XT_MATCH_U32=m -CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m - -# -# IP: Netfilter Configuration -# -CONFIG_NF_CONNTRACK_IPV4=m -CONFIG_NF_CONNTRACK_PROC_COMPAT=y -CONFIG_IP_NF_QUEUE=m -CONFIG_IP_NF_IPTABLES=m -CONFIG_IP_NF_MATCH_IPRANGE=m -CONFIG_IP_NF_MATCH_TOS=m -CONFIG_IP_NF_MATCH_RECENT=m -CONFIG_IP_NF_MATCH_ECN=m -CONFIG_IP_NF_MATCH_AH=m -CONFIG_IP_NF_MATCH_TTL=m -CONFIG_IP_NF_MATCH_OWNER=m -CONFIG_IP_NF_MATCH_ADDRTYPE=m -CONFIG_IP_NF_FILTER=m -CONFIG_IP_NF_TARGET_REJECT=m -CONFIG_IP_NF_TARGET_LOG=m -CONFIG_IP_NF_TARGET_ULOG=m -CONFIG_NF_NAT=m -CONFIG_NF_NAT_NEEDED=y -CONFIG_IP_NF_TARGET_MASQUERADE=m -CONFIG_IP_NF_TARGET_REDIRECT=m -CONFIG_IP_NF_TARGET_NETMAP=m -CONFIG_IP_NF_TARGET_SAME=m -CONFIG_NF_NAT_SNMP_BASIC=m -CONFIG_NF_NAT_PROTO_GRE=m -CONFIG_NF_NAT_FTP=m -CONFIG_NF_NAT_IRC=m -CONFIG_NF_NAT_TFTP=m -CONFIG_NF_NAT_AMANDA=m -CONFIG_NF_NAT_PPTP=m -CONFIG_NF_NAT_H323=m -CONFIG_NF_NAT_SIP=m -CONFIG_IP_NF_MANGLE=m -CONFIG_IP_NF_TARGET_TOS=m -CONFIG_IP_NF_TARGET_ECN=m -CONFIG_IP_NF_TARGET_TTL=m -CONFIG_IP_NF_TARGET_CLUSTERIP=m -CONFIG_IP_NF_RAW=m -CONFIG_IP_NF_ARPTABLES=m -CONFIG_IP_NF_ARPFILTER=m -CONFIG_IP_NF_ARP_MANGLE=m - -# -# IPv6: Netfilter Configuration (EXPERIMENTAL) -# -CONFIG_NF_CONNTRACK_IPV6=m -CONFIG_IP6_NF_QUEUE=m -CONFIG_IP6_NF_IPTABLES=m -CONFIG_IP6_NF_MATCH_RT=m -CONFIG_IP6_NF_MATCH_OPTS=m -CONFIG_IP6_NF_MATCH_FRAG=m -CONFIG_IP6_NF_MATCH_HL=m -CONFIG_IP6_NF_MATCH_OWNER=m -CONFIG_IP6_NF_MATCH_IPV6HEADER=m -CONFIG_IP6_NF_MATCH_AH=m -CONFIG_IP6_NF_MATCH_MH=m -CONFIG_IP6_NF_MATCH_EUI64=m -CONFIG_IP6_NF_FILTER=m -CONFIG_IP6_NF_TARGET_LOG=m -CONFIG_IP6_NF_TARGET_REJECT=m -CONFIG_IP6_NF_MANGLE=m -CONFIG_IP6_NF_TARGET_HL=m -CONFIG_IP6_NF_RAW=m -# CONFIG_IP_DCCP is not set -CONFIG_IP_SCTP=m -# CONFIG_SCTP_DBG_MSG is not set -# CONFIG_SCTP_DBG_OBJCNT is not set -# CONFIG_SCTP_HMAC_NONE is not set -# CONFIG_SCTP_HMAC_SHA1 is not set -CONFIG_SCTP_HMAC_MD5=y -# CONFIG_TIPC is not set -# CONFIG_ATM is not set -# CONFIG_BRIDGE is not set -# CONFIG_VLAN_8021Q is not set -# CONFIG_DECNET is not set -# CONFIG_LLC2 is not set -# CONFIG_IPX is not set -# CONFIG_ATALK is not set -# CONFIG_X25 is not set -# CONFIG_LAPB is not set -# CONFIG_ECONET is not set -# CONFIG_WAN_ROUTER is not set - -# -# QoS and/or fair queueing -# -CONFIG_NET_SCHED=y -CONFIG_NET_SCH_FIFO=y - -# -# Queueing/Scheduling -# -CONFIG_NET_SCH_CBQ=m -CONFIG_NET_SCH_HTB=m -CONFIG_NET_SCH_HFSC=m -CONFIG_NET_SCH_PRIO=m -CONFIG_NET_SCH_RR=m -CONFIG_NET_SCH_RED=m -CONFIG_NET_SCH_SFQ=m -CONFIG_NET_SCH_TEQL=m -CONFIG_NET_SCH_TBF=m -CONFIG_NET_SCH_GRED=m -CONFIG_NET_SCH_DSMARK=m -CONFIG_NET_SCH_NETEM=m -CONFIG_NET_SCH_INGRESS=m - -# -# Classification -# -CONFIG_NET_CLS=y -CONFIG_NET_CLS_BASIC=m -CONFIG_NET_CLS_TCINDEX=m -CONFIG_NET_CLS_ROUTE4=m -CONFIG_NET_CLS_ROUTE=y -CONFIG_NET_CLS_FW=m -CONFIG_NET_CLS_U32=m -# CONFIG_CLS_U32_PERF is not set -# CONFIG_CLS_U32_MARK is not set -CONFIG_NET_CLS_RSVP=m -CONFIG_NET_CLS_RSVP6=m -# CONFIG_NET_EMATCH is not set -CONFIG_NET_CLS_ACT=y -CONFIG_NET_ACT_POLICE=y -CONFIG_NET_ACT_GACT=m -CONFIG_GACT_PROB=y -CONFIG_NET_ACT_MIRRED=m -CONFIG_NET_ACT_IPT=m -CONFIG_NET_ACT_PEDIT=m -CONFIG_NET_ACT_SIMP=m -CONFIG_NET_CLS_POLICE=y -# CONFIG_NET_CLS_IND is not set - -# -# Network testing -# -# CONFIG_NET_PKTGEN is not set -# CONFIG_HAMRADIO is not set -# CONFIG_IRDA is not set -# CONFIG_BT is not set -# CONFIG_AF_RXRPC is not set -CONFIG_FIB_RULES=y - -# -# Wireless -# -CONFIG_CFG80211=m -CONFIG_WIRELESS_EXT=y -CONFIG_MAC80211=m -# CONFIG_MAC80211_DEBUG is not set -CONFIG_IEEE80211=m -# CONFIG_IEEE80211_DEBUG is not set -CONFIG_IEEE80211_CRYPT_WEP=m -CONFIG_IEEE80211_CRYPT_CCMP=m -CONFIG_IEEE80211_CRYPT_TKIP=m -CONFIG_IEEE80211_SOFTMAC=m -# CONFIG_IEEE80211_SOFTMAC_DEBUG is not set -CONFIG_RFKILL=m -CONFIG_RFKILL_INPUT=m -# CONFIG_NET_9P is not set - -# -# Device Drivers -# - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_SYS_HYPERVISOR is not set -CONFIG_CONNECTOR=m -# CONFIG_MTD is not set -# CONFIG_PARPORT is not set -CONFIG_BLK_DEV=y -# CONFIG_BLK_DEV_COW_COMMON is not set -# CONFIG_BLK_DEV_LOOP is not set -# CONFIG_BLK_DEV_NBD is not set -# CONFIG_BLK_DEV_RAM is not set -CONFIG_CDROM_PKTCDVD=m -CONFIG_CDROM_PKTCDVD_BUFFERS=8 -# CONFIG_CDROM_PKTCDVD_WCACHE is not set -CONFIG_ATA_OVER_ETH=m -# CONFIG_MISC_DEVICES is not set -# CONFIG_IDE is not set - -# -# SCSI device support -# -CONFIG_RAID_ATTRS=m -CONFIG_SCSI=y -CONFIG_SCSI_DMA=y -CONFIG_SCSI_TGT=m -# CONFIG_SCSI_NETLINK is not set -CONFIG_SCSI_PROC_FS=y - -# -# SCSI support type (disk, tape, CD-ROM) -# -CONFIG_BLK_DEV_SD=y -CONFIG_CHR_DEV_ST=y -# CONFIG_CHR_DEV_OSST is not set -CONFIG_BLK_DEV_SR=y -# CONFIG_BLK_DEV_SR_VENDOR is not set -# CONFIG_CHR_DEV_SG is not set -CONFIG_CHR_DEV_SCH=m - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# -# CONFIG_SCSI_MULTI_LUN is not set -CONFIG_SCSI_CONSTANTS=y -# CONFIG_SCSI_LOGGING is not set -CONFIG_SCSI_SCAN_ASYNC=y -CONFIG_SCSI_WAIT_SCAN=m - -# -# SCSI Transports -# -CONFIG_SCSI_SPI_ATTRS=m -# CONFIG_SCSI_FC_ATTRS is not set -CONFIG_SCSI_ISCSI_ATTRS=m -# CONFIG_SCSI_SAS_LIBSAS is not set -CONFIG_SCSI_LOWLEVEL=y -CONFIG_ISCSI_TCP=m -CONFIG_SGIWD93_SCSI=y -# CONFIG_SCSI_DEBUG is not set -# CONFIG_ATA is not set -# CONFIG_MD is not set -CONFIG_NETDEVICES=y -# CONFIG_NETDEVICES_MULTIQUEUE is not set -# CONFIG_IFB is not set -CONFIG_DUMMY=m -CONFIG_BONDING=m -CONFIG_MACVLAN=m -CONFIG_EQUALIZER=m -CONFIG_TUN=m -CONFIG_PHYLIB=m - -# -# MII PHY device drivers -# -CONFIG_MARVELL_PHY=m -CONFIG_DAVICOM_PHY=m -CONFIG_QSEMI_PHY=m -CONFIG_LXT_PHY=m -CONFIG_CICADA_PHY=m -# CONFIG_VITESSE_PHY is not set -# CONFIG_SMSC_PHY is not set -# CONFIG_BROADCOM_PHY is not set -# CONFIG_ICPLUS_PHY is not set -# CONFIG_FIXED_PHY is not set -CONFIG_NET_ETHERNET=y -# CONFIG_MII is not set -# CONFIG_AX88796 is not set -# CONFIG_DM9000 is not set -CONFIG_SGISEEQ=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set - -# -# Wireless LAN -# -CONFIG_WLAN_PRE80211=y -CONFIG_STRIP=m -CONFIG_WLAN_80211=y -# CONFIG_LIBERTAS is not set -CONFIG_HOSTAP=m -# CONFIG_HOSTAP_FIRMWARE is not set -# CONFIG_WAN is not set -# CONFIG_PPP is not set -# CONFIG_SLIP is not set -# CONFIG_SHAPER is not set -# CONFIG_NETCONSOLE is not set -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set -# CONFIG_ISDN is not set -# CONFIG_PHONE is not set - -# -# Input device support -# -CONFIG_INPUT=y -# CONFIG_INPUT_FF_MEMLESS is not set -# CONFIG_INPUT_POLLDEV is not set - -# -# Userland interfaces -# -CONFIG_INPUT_MOUSEDEV=m -CONFIG_INPUT_MOUSEDEV_PSAUX=y -CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 -CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 -# CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set -# CONFIG_INPUT_EVDEV is not set -# CONFIG_INPUT_EVBUG is not set - -# -# Input Device Drivers -# -CONFIG_INPUT_KEYBOARD=y -CONFIG_KEYBOARD_ATKBD=y -# CONFIG_KEYBOARD_SUNKBD is not set -# CONFIG_KEYBOARD_LKKBD is not set -# CONFIG_KEYBOARD_XTKBD is not set -# CONFIG_KEYBOARD_NEWTON is not set -# CONFIG_KEYBOARD_STOWAWAY is not set -CONFIG_INPUT_MOUSE=y -CONFIG_MOUSE_PS2=m -# CONFIG_MOUSE_PS2_ALPS is not set -CONFIG_MOUSE_PS2_LOGIPS2PP=y -# CONFIG_MOUSE_PS2_SYNAPTICS is not set -# CONFIG_MOUSE_PS2_LIFEBOOK is not set -CONFIG_MOUSE_PS2_TRACKPOINT=y -# CONFIG_MOUSE_PS2_TOUCHKIT is not set -CONFIG_MOUSE_SERIAL=m -# CONFIG_MOUSE_VSXXXAA is not set -# CONFIG_INPUT_JOYSTICK is not set -# CONFIG_INPUT_TABLET is not set -# CONFIG_INPUT_TOUCHSCREEN is not set -# CONFIG_INPUT_MISC is not set - -# -# Hardware I/O ports -# -CONFIG_SERIO=y -CONFIG_SERIO_I8042=y -CONFIG_SERIO_SERPORT=y -CONFIG_SERIO_LIBPS2=y -CONFIG_SERIO_RAW=m -# CONFIG_GAMEPORT is not set - -# -# Character devices -# -CONFIG_VT=y -CONFIG_VT_CONSOLE=y -CONFIG_HW_CONSOLE=y -CONFIG_VT_HW_CONSOLE_BINDING=y -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -# CONFIG_SERIAL_8250 is not set - -# -# Non-8250 serial port support -# -CONFIG_SERIAL_IP22_ZILOG=m -CONFIG_SERIAL_CORE=m -CONFIG_UNIX98_PTYS=y -CONFIG_LEGACY_PTYS=y -CONFIG_LEGACY_PTY_COUNT=256 -# CONFIG_IPMI_HANDLER is not set -CONFIG_WATCHDOG=y -# CONFIG_WATCHDOG_NOWAYOUT is not set - -# -# Watchdog Device Drivers -# -# CONFIG_SOFT_WATCHDOG is not set -CONFIG_INDYDOG=m -# CONFIG_HW_RANDOM is not set -# CONFIG_RTC is not set -CONFIG_SGI_DS1286=m -# CONFIG_R3964 is not set -CONFIG_RAW_DRIVER=m -CONFIG_MAX_RAW_DEVS=256 -# CONFIG_TCG_TPM is not set -# CONFIG_I2C is not set - -# -# SPI support -# -# CONFIG_SPI is not set -# CONFIG_SPI_MASTER is not set -# CONFIG_W1 is not set -# CONFIG_POWER_SUPPLY is not set -# CONFIG_HWMON is not set - -# -# Multifunction device drivers -# -# CONFIG_MFD_SM501 is not set - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_DAB is not set - -# -# Graphics support -# -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set - -# -# Display device support -# -# CONFIG_DISPLAY_SUPPORT is not set -# CONFIG_VGASTATE is not set -# CONFIG_VIDEO_OUTPUT_CONTROL is not set -# CONFIG_FB is not set - -# -# Console display driver support -# -# CONFIG_VGA_CONSOLE is not set -CONFIG_SGI_NEWPORT_CONSOLE=y -CONFIG_DUMMY_CONSOLE=y -CONFIG_FONT_8x16=y -CONFIG_LOGO=y -# CONFIG_LOGO_LINUX_MONO is not set -# CONFIG_LOGO_LINUX_VGA16 is not set -# CONFIG_LOGO_LINUX_CLUT224 is not set -CONFIG_LOGO_SGI_CLUT224=y - -# -# Sound -# -# CONFIG_SOUND is not set -CONFIG_HID_SUPPORT=y -CONFIG_HID=y -# CONFIG_HID_DEBUG is not set -CONFIG_USB_SUPPORT=y -# CONFIG_USB_ARCH_HAS_HCD is not set -# CONFIG_USB_ARCH_HAS_OHCI is not set -# CONFIG_USB_ARCH_HAS_EHCI is not set - -# -# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' -# - -# -# USB Gadget Support -# -# CONFIG_USB_GADGET is not set -# CONFIG_MMC is not set -# CONFIG_NEW_LEDS is not set -# CONFIG_RTC_CLASS is not set - -# -# DMA Engine support -# -# CONFIG_DMA_ENGINE is not set - -# -# DMA Clients -# - -# -# DMA Devices -# - -# -# Userspace I/O -# -# CONFIG_UIO is not set - -# -# File systems -# -CONFIG_EXT2_FS=m -# CONFIG_EXT2_FS_XATTR is not set -# CONFIG_EXT2_FS_XIP is not set -CONFIG_EXT3_FS=y -CONFIG_EXT3_FS_XATTR=y -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y -# CONFIG_EXT4DEV_FS is not set -CONFIG_JBD=y -# CONFIG_JBD_DEBUG is not set -CONFIG_FS_MBCACHE=y -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -CONFIG_FS_POSIX_ACL=y -CONFIG_XFS_FS=m -CONFIG_XFS_QUOTA=y -CONFIG_XFS_SECURITY=y -# CONFIG_XFS_POSIX_ACL is not set -# CONFIG_XFS_RT is not set -# CONFIG_GFS2_FS is not set -# CONFIG_OCFS2_FS is not set -CONFIG_MINIX_FS=m -# CONFIG_ROMFS_FS is not set -CONFIG_INOTIFY=y -CONFIG_INOTIFY_USER=y -CONFIG_QUOTA=y -# CONFIG_QFMT_V1 is not set -CONFIG_QFMT_V2=m -CONFIG_QUOTACTL=y -CONFIG_DNOTIFY=y -CONFIG_AUTOFS_FS=m -CONFIG_AUTOFS4_FS=m -CONFIG_FUSE_FS=m -CONFIG_GENERIC_ACL=y - -# -# CD-ROM/DVD Filesystems -# -CONFIG_ISO9660_FS=m -CONFIG_JOLIET=y -CONFIG_ZISOFS=y -CONFIG_UDF_FS=m -CONFIG_UDF_NLS=y - -# -# DOS/FAT/NT Filesystems -# -CONFIG_FAT_FS=m -CONFIG_MSDOS_FS=m -CONFIG_VFAT_FS=m -CONFIG_FAT_DEFAULT_CODEPAGE=437 -CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" -# CONFIG_NTFS_FS is not set - -# -# Pseudo filesystems -# -CONFIG_PROC_FS=y -CONFIG_PROC_KCORE=y -CONFIG_PROC_SYSCTL=y -CONFIG_SYSFS=y -CONFIG_TMPFS=y -CONFIG_TMPFS_POSIX_ACL=y -# CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y -CONFIG_CONFIGFS_FS=m - -# -# Miscellaneous filesystems -# -# CONFIG_ADFS_FS is not set -# CONFIG_AFFS_FS is not set -# CONFIG_ECRYPT_FS is not set -# CONFIG_HFS_FS is not set -# CONFIG_HFSPLUS_FS is not set -# CONFIG_BEFS_FS is not set -# CONFIG_BFS_FS is not set -CONFIG_EFS_FS=m -# CONFIG_CRAMFS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_SYSV_FS is not set -CONFIG_UFS_FS=m -# CONFIG_UFS_FS_WRITE is not set -# CONFIG_UFS_DEBUG is not set - -# -# Network File Systems -# -CONFIG_NFS_FS=m -CONFIG_NFS_V3=y -CONFIG_NFS_V3_ACL=y -# CONFIG_NFS_V4 is not set -# CONFIG_NFS_DIRECTIO is not set -CONFIG_NFSD=m -CONFIG_NFSD_V2_ACL=y -CONFIG_NFSD_V3=y -CONFIG_NFSD_V3_ACL=y -# CONFIG_NFSD_V4 is not set -CONFIG_NFSD_TCP=y -CONFIG_LOCKD=m -CONFIG_LOCKD_V4=y -CONFIG_EXPORTFS=m -CONFIG_NFS_ACL_SUPPORT=m -CONFIG_NFS_COMMON=y -CONFIG_SUNRPC=m -CONFIG_SUNRPC_GSS=m -# CONFIG_SUNRPC_BIND34 is not set -CONFIG_RPCSEC_GSS_KRB5=m -# CONFIG_RPCSEC_GSS_SPKM3 is not set -CONFIG_SMB_FS=m -CONFIG_SMB_NLS_DEFAULT=y -CONFIG_SMB_NLS_REMOTE="cp437" -CONFIG_CIFS=m -# CONFIG_CIFS_STATS is not set -# CONFIG_CIFS_WEAK_PW_HASH is not set -# CONFIG_CIFS_XATTR is not set -# CONFIG_CIFS_DEBUG2 is not set -# CONFIG_CIFS_EXPERIMENTAL is not set -# CONFIG_NCP_FS is not set -CONFIG_CODA_FS=m -# CONFIG_CODA_FS_OLD_API is not set -# CONFIG_AFS_FS is not set - -# -# Partition Types -# -CONFIG_PARTITION_ADVANCED=y -# CONFIG_ACORN_PARTITION is not set -# CONFIG_OSF_PARTITION is not set -# CONFIG_AMIGA_PARTITION is not set -# CONFIG_ATARI_PARTITION is not set -# CONFIG_MAC_PARTITION is not set -CONFIG_MSDOS_PARTITION=y -# CONFIG_BSD_DISKLABEL is not set -# CONFIG_MINIX_SUBPARTITION is not set -# CONFIG_SOLARIS_X86_PARTITION is not set -# CONFIG_UNIXWARE_DISKLABEL is not set -# CONFIG_LDM_PARTITION is not set -CONFIG_SGI_PARTITION=y -# CONFIG_ULTRIX_PARTITION is not set -# CONFIG_SUN_PARTITION is not set -# CONFIG_KARMA_PARTITION is not set -# CONFIG_EFI_PARTITION is not set -# CONFIG_SYSV68_PARTITION is not set - -# -# Native Language Support -# -CONFIG_NLS=m -CONFIG_NLS_DEFAULT="iso8859-1" -CONFIG_NLS_CODEPAGE_437=m -CONFIG_NLS_CODEPAGE_737=m -CONFIG_NLS_CODEPAGE_775=m -CONFIG_NLS_CODEPAGE_850=m -CONFIG_NLS_CODEPAGE_852=m -CONFIG_NLS_CODEPAGE_855=m -CONFIG_NLS_CODEPAGE_857=m -CONFIG_NLS_CODEPAGE_860=m -CONFIG_NLS_CODEPAGE_861=m -CONFIG_NLS_CODEPAGE_862=m -CONFIG_NLS_CODEPAGE_863=m -CONFIG_NLS_CODEPAGE_864=m -CONFIG_NLS_CODEPAGE_865=m -CONFIG_NLS_CODEPAGE_866=m -CONFIG_NLS_CODEPAGE_869=m -CONFIG_NLS_CODEPAGE_936=m -CONFIG_NLS_CODEPAGE_950=m -CONFIG_NLS_CODEPAGE_932=m -CONFIG_NLS_CODEPAGE_949=m -CONFIG_NLS_CODEPAGE_874=m -CONFIG_NLS_ISO8859_8=m -CONFIG_NLS_CODEPAGE_1250=m -CONFIG_NLS_CODEPAGE_1251=m -CONFIG_NLS_ASCII=m -CONFIG_NLS_ISO8859_1=m -CONFIG_NLS_ISO8859_2=m -CONFIG_NLS_ISO8859_3=m -CONFIG_NLS_ISO8859_4=m -CONFIG_NLS_ISO8859_5=m -CONFIG_NLS_ISO8859_6=m -CONFIG_NLS_ISO8859_7=m -CONFIG_NLS_ISO8859_9=m -CONFIG_NLS_ISO8859_13=m -CONFIG_NLS_ISO8859_14=m -CONFIG_NLS_ISO8859_15=m -CONFIG_NLS_KOI8_R=m -CONFIG_NLS_KOI8_U=m -CONFIG_NLS_UTF8=m - -# -# Distributed Lock Manager -# -CONFIG_DLM=m -# CONFIG_DLM_DEBUG is not set - -# -# Profiling support -# -# CONFIG_PROFILING is not set - -# -# Kernel hacking -# -CONFIG_TRACE_IRQFLAGS_SUPPORT=y -# CONFIG_PRINTK_TIME is not set -CONFIG_ENABLE_MUST_CHECK=y -# CONFIG_MAGIC_SYSRQ is not set -# CONFIG_UNUSED_SYMBOLS is not set -# CONFIG_DEBUG_FS is not set -# CONFIG_HEADERS_CHECK is not set -# CONFIG_DEBUG_KERNEL is not set -CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" - -# -# Security options -# -CONFIG_KEYS=y -CONFIG_KEYS_DEBUG_PROC_KEYS=y -# CONFIG_SECURITY is not set -CONFIG_CRYPTO=y -CONFIG_CRYPTO_ALGAPI=y -CONFIG_CRYPTO_ABLKCIPHER=m -CONFIG_CRYPTO_BLKCIPHER=m -CONFIG_CRYPTO_HASH=y -CONFIG_CRYPTO_MANAGER=y -CONFIG_CRYPTO_HMAC=y -CONFIG_CRYPTO_XCBC=m -CONFIG_CRYPTO_NULL=m -CONFIG_CRYPTO_MD4=m -CONFIG_CRYPTO_MD5=y -CONFIG_CRYPTO_SHA1=m -CONFIG_CRYPTO_SHA256=m -CONFIG_CRYPTO_SHA512=m -CONFIG_CRYPTO_WP512=m -CONFIG_CRYPTO_TGR192=m -CONFIG_CRYPTO_GF128MUL=m -CONFIG_CRYPTO_ECB=m -CONFIG_CRYPTO_CBC=m -CONFIG_CRYPTO_PCBC=m -CONFIG_CRYPTO_LRW=m -CONFIG_CRYPTO_CRYPTD=m -CONFIG_CRYPTO_DES=m -CONFIG_CRYPTO_FCRYPT=m -CONFIG_CRYPTO_BLOWFISH=m -CONFIG_CRYPTO_TWOFISH=m -CONFIG_CRYPTO_TWOFISH_COMMON=m -CONFIG_CRYPTO_SERPENT=m -CONFIG_CRYPTO_AES=m -CONFIG_CRYPTO_CAST5=m -CONFIG_CRYPTO_CAST6=m -CONFIG_CRYPTO_TEA=m -CONFIG_CRYPTO_ARC4=m -CONFIG_CRYPTO_KHAZAD=m -CONFIG_CRYPTO_ANUBIS=m -CONFIG_CRYPTO_DEFLATE=m -CONFIG_CRYPTO_MICHAEL_MIC=m -CONFIG_CRYPTO_CRC32C=m -CONFIG_CRYPTO_CAMELLIA=m -# CONFIG_CRYPTO_TEST is not set -# CONFIG_CRYPTO_HW is not set - -# -# Library routines -# -CONFIG_BITREVERSE=m -# CONFIG_CRC_CCITT is not set -CONFIG_CRC16=m -# CONFIG_CRC_ITU_T is not set -CONFIG_CRC32=m -# CONFIG_CRC7 is not set -CONFIG_LIBCRC32C=m -CONFIG_ZLIB_INFLATE=m -CONFIG_ZLIB_DEFLATE=m -CONFIG_TEXTSEARCH=y -CONFIG_TEXTSEARCH_KMP=m -CONFIG_TEXTSEARCH_BM=m -CONFIG_TEXTSEARCH_FSM=m -CONFIG_PLIST=y -CONFIG_HAS_IOMEM=y -CONFIG_HAS_IOPORT=y -CONFIG_HAS_DMA=y -- GitLab From a7c2996e41ada10d504050863bbc318f5ed2a0c2 Mon Sep 17 00:00:00 2001 From: Thiemo Seufer Date: Fri, 29 Feb 2008 00:43:47 +0000 Subject: [PATCH 782/923] [MIPS] Fix typo in comment We support now other page sizes as well. Signed-off-by: Thiemo Seufer Signed-off-by: Ralf Baechle --- arch/mips/mm/tlb-r4k.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 74ae0348cc9..2ad08fca598 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -473,7 +473,7 @@ void __init tlb_init(void) * - On R4600 1.7 the tlbp never hits for pages smaller than * the value in the c0_pagemask register. * - The entire mm handling assumes the c0_pagemask register to - * be set for 4kb pages. + * be set to fixed-size pages. */ probe_tlb(config); write_c0_pagemask(PM_DEFAULT_MASK); -- GitLab From 4177017d5bdf4456da022d4c82e48ac99cd65426 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 4 Mar 2008 09:03:09 +0000 Subject: [PATCH 783/923] [MIPS] Export __ucmpdi2 to modules. Signed-off-by: Ralf Baechle --- arch/mips/lib/ucmpdi2.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/mips/lib/ucmpdi2.c b/arch/mips/lib/ucmpdi2.c index b33d8569bcb..bb4cb2f828e 100644 --- a/arch/mips/lib/ucmpdi2.c +++ b/arch/mips/lib/ucmpdi2.c @@ -17,3 +17,5 @@ word_type __ucmpdi2(unsigned long long a, unsigned long long b) return 2; return 1; } + +EXPORT_SYMBOL(__ucmpdi2); -- GitLab From 308a163931928332b57dfdfb3520c1924a337ef5 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Sat, 26 Jan 2008 14:08:02 +0900 Subject: [PATCH 784/923] [MIPS] Fix plat_ioremap for JMR3927 TX39XX's "reserved" segment in CKSEG3 area is 0xff000000-0xfffeffff. Signed-off-by: Atsushi Nemoto Signed-off-by: Ralf Baechle --- include/asm-mips/mach-jmr3927/ioremap.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-mips/mach-jmr3927/ioremap.h b/include/asm-mips/mach-jmr3927/ioremap.h index aa131ad7f71..29989ff10d6 100644 --- a/include/asm-mips/mach-jmr3927/ioremap.h +++ b/include/asm-mips/mach-jmr3927/ioremap.h @@ -25,7 +25,7 @@ static inline void __iomem *plat_ioremap(phys_t offset, unsigned long size, { #define TXX9_DIRECTMAP_BASE 0xff000000ul if (offset >= TXX9_DIRECTMAP_BASE && - offset < TXX9_DIRECTMAP_BASE + 0xf0000) + offset < TXX9_DIRECTMAP_BASE + 0xff0000) return (void __iomem *)offset; return NULL; } -- GitLab From 1af0eea21431bed5d07dffc0fefab57fd72f7e90 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Sat, 8 Mar 2008 09:44:37 +0000 Subject: [PATCH 785/923] [MIPS] IP27: Tighten up CPU description to fix warnings. Signed-off-by: Ralf Baechle --- include/asm-mips/mach-ip27/cpu-feature-overrides.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/asm-mips/mach-ip27/cpu-feature-overrides.h b/include/asm-mips/mach-ip27/cpu-feature-overrides.h index fe076380c18..7d3112b148d 100644 --- a/include/asm-mips/mach-ip27/cpu-feature-overrides.h +++ b/include/asm-mips/mach-ip27/cpu-feature-overrides.h @@ -34,7 +34,11 @@ #define cpu_has_64bits 1 #define cpu_has_4kex 1 +#define cpu_has_3k_cache 0 +#define cpu_has_6k_cache 0 #define cpu_has_4k_cache 1 +#define cpu_has_8k_cache 0 +#define cpu_has_tx39_cache 0 #define cpu_has_inclusive_pcaches 1 -- GitLab From 234fcd1484a66158b561b36b421547f0ab85fee9 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Sat, 8 Mar 2008 09:56:28 +0000 Subject: [PATCH 786/923] [MIPS] Fix loads of section missmatches Signed-off-by: Ralf Baechle --- arch/mips/kernel/cpu-bugs64.c | 4 +- arch/mips/kernel/cpu-probe.c | 10 ++-- arch/mips/kernel/head.S | 2 +- arch/mips/kernel/traps.c | 7 +-- arch/mips/lib/uncached.c | 2 +- arch/mips/mips-boards/generic/time.c | 2 +- arch/mips/mipssim/sim_time.c | 2 +- arch/mips/mm/c-r3k.c | 2 +- arch/mips/mm/c-r4k.c | 30 +++++------ arch/mips/mm/c-tx39.c | 2 +- arch/mips/mm/cache.c | 5 +- arch/mips/mm/cex-sb1.S | 4 +- arch/mips/mm/pg-r4k.c | 22 ++++---- arch/mips/mm/pg-sb1.c | 4 +- arch/mips/mm/sc-ip22.c | 2 +- arch/mips/mm/sc-mips.c | 3 +- arch/mips/mm/sc-r5k.c | 2 +- arch/mips/mm/sc-rm7k.c | 2 +- arch/mips/mm/tlb-r3k.c | 2 +- arch/mips/mm/tlb-r4k.c | 8 +-- arch/mips/mm/tlb-r8k.c | 4 +- arch/mips/mm/tlbex.c | 70 ++++++++++++------------- arch/mips/mm/uasm.c | 68 ++++++++++++------------- arch/mips/mm/uasm.h | 76 ++++++++++++---------------- arch/mips/pci/pci-ip27.c | 2 +- arch/mips/pci/pci.c | 2 +- arch/mips/sgi-ip27/ip27-init.c | 2 +- arch/mips/sgi-ip27/ip27-timer.c | 2 +- arch/mips/sgi-ip27/ip27-xtalk.c | 6 +-- include/asm-mips/cacheflush.h | 2 +- 30 files changed, 171 insertions(+), 180 deletions(-) diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c index 417bb3e336a..a1b48af0992 100644 --- a/arch/mips/kernel/cpu-bugs64.c +++ b/arch/mips/kernel/cpu-bugs64.c @@ -167,7 +167,7 @@ static inline void check_mult_sh(void) panic(bug64hit, !R4000_WAR ? r4kwar : nowar); } -static volatile int daddi_ov __initdata = 0; +static volatile int daddi_ov __cpuinitdata = 0; asmlinkage void __init do_daddi_ov(struct pt_regs *regs) { @@ -239,7 +239,7 @@ static inline void check_daddi(void) panic(bug64hit, !DADDI_WAR ? daddiwar : nowar); } -int daddiu_bug __initdata = -1; +int daddiu_bug __cpuinitdata = -1; static inline void check_daddiu(void) { diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 5861a432a52..89c3304cb93 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -550,7 +550,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c) } } -static char unknown_isa[] __initdata = KERN_ERR \ +static char unknown_isa[] __cpuinitdata = KERN_ERR \ "Unsupported ISA type, c0.config0: %d."; static inline unsigned int decode_config0(struct cpuinfo_mips *c) @@ -656,7 +656,7 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c) return config3 & MIPS_CONF_M; } -static void __init decode_configs(struct cpuinfo_mips *c) +static void __cpuinit decode_configs(struct cpuinfo_mips *c) { /* MIPS32 or MIPS64 compliant CPU. */ c->options = MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE | MIPS_CPU_COUNTER | @@ -814,7 +814,7 @@ const char *__cpu_name[NR_CPUS]; /* * Name a CPU */ -static __init const char *cpu_to_name(struct cpuinfo_mips *c) +static __cpuinit const char *cpu_to_name(struct cpuinfo_mips *c) { const char *name = NULL; @@ -896,7 +896,7 @@ static __init const char *cpu_to_name(struct cpuinfo_mips *c) return name; } -__init void cpu_probe(void) +__cpuinit void cpu_probe(void) { struct cpuinfo_mips *c = ¤t_cpu_data; unsigned int cpu = smp_processor_id(); @@ -959,7 +959,7 @@ __init void cpu_probe(void) c->srsets = 1; } -__init void cpu_report(void) +__cpuinit void cpu_report(void) { struct cpuinfo_mips *c = ¤t_cpu_data; diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index a24fb790090..361364501d3 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -195,7 +195,7 @@ NESTED(kernel_entry, 16, sp) # kernel entry point j start_kernel END(kernel_entry) - __INIT + __CPUINIT #ifdef CONFIG_SMP /* diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 79cf7e913b9..984c0d0a7b4 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1306,7 +1306,7 @@ int cp0_compare_irq; int cp0_perfcount_irq; EXPORT_SYMBOL_GPL(cp0_perfcount_irq); -void __init per_cpu_trap_init(void) +void __cpuinit per_cpu_trap_init(void) { unsigned int cpu = smp_processor_id(); unsigned int status_set = ST0_CU0; @@ -1423,11 +1423,12 @@ void __init set_handler(unsigned long offset, void *addr, unsigned long size) flush_icache_range(ebase + offset, ebase + offset + size); } -static char panic_null_cerr[] __initdata = +static char panic_null_cerr[] __cpuinitdata = "Trying to set NULL cache error exception handler"; /* Install uncached CPU exception handler */ -void __init set_uncached_handler(unsigned long offset, void *addr, unsigned long size) +void __cpuinit set_uncached_handler(unsigned long offset, void *addr, + unsigned long size) { #ifdef CONFIG_32BIT unsigned long uncached_ebase = KSEG1ADDR(ebase); diff --git a/arch/mips/lib/uncached.c b/arch/mips/lib/uncached.c index 27b012d4341..a6d1c77034d 100644 --- a/arch/mips/lib/uncached.c +++ b/arch/mips/lib/uncached.c @@ -36,7 +36,7 @@ * values, so we can avoid sharing the same stack area between a cached * and the uncached mode. */ -unsigned long __init run_uncached(void *func) +unsigned long __cpuinit run_uncached(void *func) { register long sp __asm__("$sp"); register long ret __asm__("$2"); diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mips-boards/generic/time.c index f02ce6308e5..b50e0fc406a 100644 --- a/arch/mips/mips-boards/generic/time.c +++ b/arch/mips/mips-boards/generic/time.c @@ -146,7 +146,7 @@ void __init plat_perf_setup(void) } } -unsigned int __init get_c0_compare_int(void) +unsigned int __cpuinit get_c0_compare_int(void) { #ifdef MSC01E_INT_BASE if (cpu_has_veic) { diff --git a/arch/mips/mipssim/sim_time.c b/arch/mips/mipssim/sim_time.c index e39bbe989da..881ecbc1fa2 100644 --- a/arch/mips/mipssim/sim_time.c +++ b/arch/mips/mipssim/sim_time.c @@ -83,7 +83,7 @@ static void mips_timer_dispatch(void) } -unsigned __init get_c0_compare_int(void) +unsigned __cpuinit get_c0_compare_int(void) { #ifdef MSC01E_INT_BASE if (cpu_has_veic) { diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c index 562abb77d1d..76935e32021 100644 --- a/arch/mips/mm/c-r3k.c +++ b/arch/mips/mm/c-r3k.c @@ -307,7 +307,7 @@ static void r3k_dma_cache_wback_inv(unsigned long start, unsigned long size) r3k_flush_dcache_range(start, start + size); } -void __init r3k_cache_init(void) +void __cpuinit r3k_cache_init(void) { extern void build_clear_page(void); extern void build_copy_page(void); diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 2c4f7e11f0d..6496925b5e2 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -93,7 +93,7 @@ static inline void r4k_blast_dcache_page_dc32(unsigned long addr) blast_dcache32_page(addr); } -static void __init r4k_blast_dcache_page_setup(void) +static void __cpuinit r4k_blast_dcache_page_setup(void) { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -107,7 +107,7 @@ static void __init r4k_blast_dcache_page_setup(void) static void (* r4k_blast_dcache_page_indexed)(unsigned long addr); -static void __init r4k_blast_dcache_page_indexed_setup(void) +static void __cpuinit r4k_blast_dcache_page_indexed_setup(void) { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -121,7 +121,7 @@ static void __init r4k_blast_dcache_page_indexed_setup(void) static void (* r4k_blast_dcache)(void); -static void __init r4k_blast_dcache_setup(void) +static void __cpuinit r4k_blast_dcache_setup(void) { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -206,7 +206,7 @@ static inline void tx49_blast_icache32_page_indexed(unsigned long page) static void (* r4k_blast_icache_page)(unsigned long addr); -static void __init r4k_blast_icache_page_setup(void) +static void __cpuinit r4k_blast_icache_page_setup(void) { unsigned long ic_lsize = cpu_icache_line_size(); @@ -223,7 +223,7 @@ static void __init r4k_blast_icache_page_setup(void) static void (* r4k_blast_icache_page_indexed)(unsigned long addr); -static void __init r4k_blast_icache_page_indexed_setup(void) +static void __cpuinit r4k_blast_icache_page_indexed_setup(void) { unsigned long ic_lsize = cpu_icache_line_size(); @@ -247,7 +247,7 @@ static void __init r4k_blast_icache_page_indexed_setup(void) static void (* r4k_blast_icache)(void); -static void __init r4k_blast_icache_setup(void) +static void __cpuinit r4k_blast_icache_setup(void) { unsigned long ic_lsize = cpu_icache_line_size(); @@ -268,7 +268,7 @@ static void __init r4k_blast_icache_setup(void) static void (* r4k_blast_scache_page)(unsigned long addr); -static void __init r4k_blast_scache_page_setup(void) +static void __cpuinit r4k_blast_scache_page_setup(void) { unsigned long sc_lsize = cpu_scache_line_size(); @@ -286,7 +286,7 @@ static void __init r4k_blast_scache_page_setup(void) static void (* r4k_blast_scache_page_indexed)(unsigned long addr); -static void __init r4k_blast_scache_page_indexed_setup(void) +static void __cpuinit r4k_blast_scache_page_indexed_setup(void) { unsigned long sc_lsize = cpu_scache_line_size(); @@ -304,7 +304,7 @@ static void __init r4k_blast_scache_page_indexed_setup(void) static void (* r4k_blast_scache)(void); -static void __init r4k_blast_scache_setup(void) +static void __cpuinit r4k_blast_scache_setup(void) { unsigned long sc_lsize = cpu_scache_line_size(); @@ -691,11 +691,11 @@ static inline void rm7k_erratum31(void) } } -static char *way_string[] __initdata = { NULL, "direct mapped", "2-way", +static char *way_string[] __cpuinitdata = { NULL, "direct mapped", "2-way", "3-way", "4-way", "5-way", "6-way", "7-way", "8-way" }; -static void __init probe_pcache(void) +static void __cpuinit probe_pcache(void) { struct cpuinfo_mips *c = ¤t_cpu_data; unsigned int config = read_c0_config(); @@ -1016,7 +1016,7 @@ static void __init probe_pcache(void) * executes in KSEG1 space or else you will crash and burn badly. You have * been warned. */ -static int __init probe_scache(void) +static int __cpuinit probe_scache(void) { unsigned long flags, addr, begin, end, pow2; unsigned int config = read_c0_config(); @@ -1095,7 +1095,7 @@ extern int r5k_sc_init(void); extern int rm7k_sc_init(void); extern int mips_sc_init(void); -static void __init setup_scache(void) +static void __cpuinit setup_scache(void) { struct cpuinfo_mips *c = ¤t_cpu_data; unsigned int config = read_c0_config(); @@ -1206,7 +1206,7 @@ void au1x00_fixup_config_od(void) } } -static void __init coherency_setup(void) +static void __cpuinit coherency_setup(void) { change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT); @@ -1238,7 +1238,7 @@ static void __init coherency_setup(void) } } -void __init r4k_cache_init(void) +void __cpuinit r4k_cache_init(void) { extern void build_clear_page(void); extern void build_copy_page(void); diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c index 9ea121e8cdc..b09d56981d5 100644 --- a/arch/mips/mm/c-tx39.c +++ b/arch/mips/mm/c-tx39.c @@ -329,7 +329,7 @@ static __init void tx39_probe_cache(void) } } -void __init tx39_cache_init(void) +void __cpuinit tx39_cache_init(void) { extern void build_clear_page(void); extern void build_copy_page(void); diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c index 6a24651971d..51ab1faa027 100644 --- a/arch/mips/mm/cache.c +++ b/arch/mips/mm/cache.c @@ -127,9 +127,10 @@ void __update_cache(struct vm_area_struct *vma, unsigned long address, } } -static char cache_panic[] __initdata = "Yeee, unsupported cache architecture."; +static char cache_panic[] __cpuinitdata = + "Yeee, unsupported cache architecture."; -void __init cpu_cache_init(void) +void __devinit cpu_cache_init(void) { if (cpu_has_3k_cache) { extern void __weak r3k_cache_init(void); diff --git a/arch/mips/mm/cex-sb1.S b/arch/mips/mm/cex-sb1.S index e54a62f2807..2d08268bb70 100644 --- a/arch/mips/mm/cex-sb1.S +++ b/arch/mips/mm/cex-sb1.S @@ -34,8 +34,6 @@ * is changed. */ - __INIT - .set mips64 .set noreorder .set noat @@ -51,6 +49,8 @@ * (0x170-0x17f) are used to preserve k0, k1, and ra. */ + __CPUINIT + LEAF(except_vec2_sb1) /* * If this error is recoverable, we need to exit the handler diff --git a/arch/mips/mm/pg-r4k.c b/arch/mips/mm/pg-r4k.c index 9185fbf37c0..455dedb5b39 100644 --- a/arch/mips/mm/pg-r4k.c +++ b/arch/mips/mm/pg-r4k.c @@ -66,21 +66,21 @@ EXPORT_SYMBOL(copy_page); * with 64-bit kernels. The prefetch offsets have been experimentally tuned * an Origin 200. */ -static int pref_offset_clear __initdata = 512; -static int pref_offset_copy __initdata = 256; +static int pref_offset_clear __cpuinitdata = 512; +static int pref_offset_copy __cpuinitdata = 256; -static unsigned int pref_src_mode __initdata; -static unsigned int pref_dst_mode __initdata; +static unsigned int pref_src_mode __cpuinitdata; +static unsigned int pref_dst_mode __cpuinitdata; -static int load_offset __initdata; -static int store_offset __initdata; +static int load_offset __cpuinitdata; +static int store_offset __cpuinitdata; -static unsigned int __initdata *dest, *epc; +static unsigned int __cpuinitdata *dest, *epc; static unsigned int instruction_pending; static union mips_instruction delayed_mi; -static void __init emit_instruction(union mips_instruction mi) +static void __cpuinit emit_instruction(union mips_instruction mi) { if (instruction_pending) *epc++ = delayed_mi.word; @@ -222,7 +222,7 @@ static inline void build_cdex_p(void) emit_instruction(mi); } -static void __init __build_store_reg(int reg) +static void __cpuinit __build_store_reg(int reg) { union mips_instruction mi; unsigned int width; @@ -339,7 +339,7 @@ static inline void build_jr_ra(void) flush_delay_slot_or_nop(); } -void __init build_clear_page(void) +void __cpuinit build_clear_page(void) { unsigned int loop_start; unsigned long off; @@ -442,7 +442,7 @@ dest = label(); pr_debug("\t.set pop\n"); } -void __init build_copy_page(void) +void __cpuinit build_copy_page(void) { unsigned int loop_start; unsigned long off; diff --git a/arch/mips/mm/pg-sb1.c b/arch/mips/mm/pg-sb1.c index 89925ec57d6..49e289d0541 100644 --- a/arch/mips/mm/pg-sb1.c +++ b/arch/mips/mm/pg-sb1.c @@ -293,10 +293,10 @@ void copy_page(void *to, void *from) EXPORT_SYMBOL(clear_page); EXPORT_SYMBOL(copy_page); -void __init build_clear_page(void) +void __cpuinit build_clear_page(void) { } -void __init build_copy_page(void) +void __cpuinit build_copy_page(void) { } diff --git a/arch/mips/mm/sc-ip22.c b/arch/mips/mm/sc-ip22.c index d236cf8b737..1f602a110e1 100644 --- a/arch/mips/mm/sc-ip22.c +++ b/arch/mips/mm/sc-ip22.c @@ -168,7 +168,7 @@ struct bcache_ops indy_sc_ops = { .bc_inv = indy_sc_wback_invalidate }; -void __init indy_sc_init(void) +void __cpuinit indy_sc_init(void) { if (indy_sc_probe()) { indy_sc_enable(); diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c index c13170bc675..b55c2d1b998 100644 --- a/arch/mips/mm/sc-mips.c +++ b/arch/mips/mm/sc-mips.c @@ -100,7 +100,7 @@ static inline int __init mips_sc_probe(void) return 1; } -int __init mips_sc_init(void) +int __cpuinit mips_sc_init(void) { int found = mips_sc_probe(); if (found) { @@ -109,4 +109,3 @@ int __init mips_sc_init(void) } return found; } - diff --git a/arch/mips/mm/sc-r5k.c b/arch/mips/mm/sc-r5k.c index d35b6c1103a..f330d38e557 100644 --- a/arch/mips/mm/sc-r5k.c +++ b/arch/mips/mm/sc-r5k.c @@ -99,7 +99,7 @@ static struct bcache_ops r5k_sc_ops = { .bc_inv = r5k_dma_cache_inv_sc }; -void __init r5k_sc_init(void) +void __cpuinit r5k_sc_init(void) { if (r5k_sc_probe()) { r5k_sc_enable(); diff --git a/arch/mips/mm/sc-rm7k.c b/arch/mips/mm/sc-rm7k.c index 31ec7305242..fc227f3b119 100644 --- a/arch/mips/mm/sc-rm7k.c +++ b/arch/mips/mm/sc-rm7k.c @@ -128,7 +128,7 @@ struct bcache_ops rm7k_sc_ops = { .bc_inv = rm7k_sc_inv }; -void __init rm7k_sc_init(void) +void __cpuinit rm7k_sc_init(void) { struct cpuinfo_mips *c = ¤t_cpu_data; unsigned int config = read_c0_config(); diff --git a/arch/mips/mm/tlb-r3k.c b/arch/mips/mm/tlb-r3k.c index 7948e9a5e37..a782549ac80 100644 --- a/arch/mips/mm/tlb-r3k.c +++ b/arch/mips/mm/tlb-r3k.c @@ -281,7 +281,7 @@ void __init add_wired_entry(unsigned long entrylo0, unsigned long entrylo1, } } -void __init tlb_init(void) +void __cpuinit tlb_init(void) { local_flush_tlb_all(); diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 2ad08fca598..63065d6e806 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -388,7 +388,7 @@ void __init add_wired_entry(unsigned long entrylo0, unsigned long entrylo1, * lifetime of the system */ -static int temp_tlb_entry __initdata; +static int temp_tlb_entry __cpuinitdata; __init int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1, unsigned long entryhi, unsigned long pagemask) @@ -427,7 +427,7 @@ out: return ret; } -static void __init probe_tlb(unsigned long config) +static void __cpuinit probe_tlb(unsigned long config) { struct cpuinfo_mips *c = ¤t_cpu_data; unsigned int reg; @@ -455,7 +455,7 @@ static void __init probe_tlb(unsigned long config) c->tlbsize = ((reg >> 25) & 0x3f) + 1; } -static int __initdata ntlb = 0; +static int __cpuinitdata ntlb = 0; static int __init set_ntlb(char *str) { get_option(&str, &ntlb); @@ -464,7 +464,7 @@ static int __init set_ntlb(char *str) __setup("ntlb=", set_ntlb); -void __init tlb_init(void) +void __cpuinit tlb_init(void) { unsigned int config = read_c0_config(); diff --git a/arch/mips/mm/tlb-r8k.c b/arch/mips/mm/tlb-r8k.c index bd8409d8ff6..4f01a3be215 100644 --- a/arch/mips/mm/tlb-r8k.c +++ b/arch/mips/mm/tlb-r8k.c @@ -214,14 +214,14 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte) local_irq_restore(flags); } -static void __init probe_tlb(unsigned long config) +static void __cpuinit probe_tlb(unsigned long config) { struct cpuinfo_mips *c = ¤t_cpu_data; c->tlbsize = 3 * 128; /* 3 sets each 128 entries */ } -void __init tlb_init(void) +void __cpuinit tlb_init(void) { unsigned int config = read_c0_config(); unsigned long status; diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 218a6cc415e..3a93d4ce270 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -60,7 +60,7 @@ static inline int __maybe_unused r10000_llsc_war(void) * why; it's not an issue caused by the core RTL. * */ -static int __init m4kc_tlbp_war(void) +static int __cpuinit m4kc_tlbp_war(void) { return (current_cpu_data.processor_id & 0xffff00) == (PRID_COMP_MIPS | PRID_IMP_4KC); @@ -144,16 +144,16 @@ static inline void dump_handler(const u32 *handler, int count) * We deliberately chose a buffer size of 128, so we won't scribble * over anything important on overflow before we panic. */ -static u32 tlb_handler[128] __initdata; +static u32 tlb_handler[128] __cpuinitdata; /* simply assume worst case size for labels and relocs */ -static struct uasm_label labels[128] __initdata; -static struct uasm_reloc relocs[128] __initdata; +static struct uasm_label labels[128] __cpuinitdata; +static struct uasm_reloc relocs[128] __cpuinitdata; /* * The R3000 TLB handler is simple. */ -static void __init build_r3000_tlb_refill_handler(void) +static void __cpuinit build_r3000_tlb_refill_handler(void) { long pgdc = (long)pgd_current; u32 *p; @@ -197,7 +197,7 @@ static void __init build_r3000_tlb_refill_handler(void) * other one.To keep things simple, we first assume linear space, * then we relocate it to the final handler layout as needed. */ -static u32 final_handler[64] __initdata; +static u32 final_handler[64] __cpuinitdata; /* * Hazards @@ -221,7 +221,7 @@ static u32 final_handler[64] __initdata; * * As if we MIPS hackers wouldn't know how to nop pipelines happy ... */ -static void __init __maybe_unused build_tlb_probe_entry(u32 **p) +static void __cpuinit __maybe_unused build_tlb_probe_entry(u32 **p) { switch (current_cpu_type()) { /* Found by experiment: R4600 v2.0 needs this, too. */ @@ -245,7 +245,7 @@ static void __init __maybe_unused build_tlb_probe_entry(u32 **p) */ enum tlb_write_entry { tlb_random, tlb_indexed }; -static void __init build_tlb_write_entry(u32 **p, struct uasm_label **l, +static void __cpuinit build_tlb_write_entry(u32 **p, struct uasm_label **l, struct uasm_reloc **r, enum tlb_write_entry wmode) { @@ -389,7 +389,7 @@ static void __init build_tlb_write_entry(u32 **p, struct uasm_label **l, * TMP and PTR are scratch. * TMP will be clobbered, PTR will hold the pmd entry. */ -static void __init +static void __cpuinit build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int tmp, unsigned int ptr) { @@ -450,7 +450,7 @@ build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r, * BVADDR is the faulting address, PTR is scratch. * PTR will hold the pgd for vmalloc. */ -static void __init +static void __cpuinit build_get_pgd_vmalloc64(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int bvaddr, unsigned int ptr) { @@ -522,7 +522,7 @@ build_get_pgd_vmalloc64(u32 **p, struct uasm_label **l, struct uasm_reloc **r, * TMP and PTR are scratch. * TMP will be clobbered, PTR will hold the pgd entry. */ -static void __init __maybe_unused +static void __cpuinit __maybe_unused build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr) { long pgdc = (long)pgd_current; @@ -557,7 +557,7 @@ build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr) #endif /* !CONFIG_64BIT */ -static void __init build_adjust_context(u32 **p, unsigned int ctx) +static void __cpuinit build_adjust_context(u32 **p, unsigned int ctx) { unsigned int shift = 4 - (PTE_T_LOG2 + 1) + PAGE_SHIFT - 12; unsigned int mask = (PTRS_PER_PTE / 2 - 1) << (PTE_T_LOG2 + 1); @@ -583,7 +583,7 @@ static void __init build_adjust_context(u32 **p, unsigned int ctx) uasm_i_andi(p, ctx, ctx, mask); } -static void __init build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr) +static void __cpuinit build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr) { /* * Bug workaround for the Nevada. It seems as if under certain @@ -608,7 +608,7 @@ static void __init build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr) UASM_i_ADDU(p, ptr, ptr, tmp); /* add in offset */ } -static void __init build_update_entries(u32 **p, unsigned int tmp, +static void __cpuinit build_update_entries(u32 **p, unsigned int tmp, unsigned int ptep) { /* @@ -651,7 +651,7 @@ static void __init build_update_entries(u32 **p, unsigned int tmp, #endif } -static void __init build_r4000_tlb_refill_handler(void) +static void __cpuinit build_r4000_tlb_refill_handler(void) { u32 *p = tlb_handler; struct uasm_label *l = labels; @@ -783,7 +783,7 @@ u32 handle_tlbl[FASTPATH_SIZE] __cacheline_aligned; u32 handle_tlbs[FASTPATH_SIZE] __cacheline_aligned; u32 handle_tlbm[FASTPATH_SIZE] __cacheline_aligned; -static void __init +static void __cpuinit iPTE_LW(u32 **p, struct uasm_label **l, unsigned int pte, unsigned int ptr) { #ifdef CONFIG_SMP @@ -803,7 +803,7 @@ iPTE_LW(u32 **p, struct uasm_label **l, unsigned int pte, unsigned int ptr) #endif } -static void __init +static void __cpuinit iPTE_SW(u32 **p, struct uasm_reloc **r, unsigned int pte, unsigned int ptr, unsigned int mode) { @@ -863,7 +863,7 @@ iPTE_SW(u32 **p, struct uasm_reloc **r, unsigned int pte, unsigned int ptr, * the page table where this PTE is located, PTE will be re-loaded * with it's original value. */ -static void __init +static void __cpuinit build_pte_present(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int pte, unsigned int ptr, enum label_id lid) { @@ -874,7 +874,7 @@ build_pte_present(u32 **p, struct uasm_label **l, struct uasm_reloc **r, } /* Make PTE valid, store result in PTR. */ -static void __init +static void __cpuinit build_make_valid(u32 **p, struct uasm_reloc **r, unsigned int pte, unsigned int ptr) { @@ -887,7 +887,7 @@ build_make_valid(u32 **p, struct uasm_reloc **r, unsigned int pte, * Check if PTE can be written to, if not branch to LABEL. Regardless * restore PTE with value from PTR when done. */ -static void __init +static void __cpuinit build_pte_writable(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int pte, unsigned int ptr, enum label_id lid) { @@ -900,7 +900,7 @@ build_pte_writable(u32 **p, struct uasm_label **l, struct uasm_reloc **r, /* Make PTE writable, update software status bits as well, then store * at PTR. */ -static void __init +static void __cpuinit build_make_write(u32 **p, struct uasm_reloc **r, unsigned int pte, unsigned int ptr) { @@ -914,7 +914,7 @@ build_make_write(u32 **p, struct uasm_reloc **r, unsigned int pte, * Check if PTE can be modified, if not branch to LABEL. Regardless * restore PTE with value from PTR when done. */ -static void __init +static void __cpuinit build_pte_modifiable(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int pte, unsigned int ptr, enum label_id lid) { @@ -931,7 +931,7 @@ build_pte_modifiable(u32 **p, struct uasm_label **l, struct uasm_reloc **r, * This places the pte into ENTRYLO0 and writes it with tlbwi. * Then it returns. */ -static void __init +static void __cpuinit build_r3000_pte_reload_tlbwi(u32 **p, unsigned int pte, unsigned int tmp) { uasm_i_mtc0(p, pte, C0_ENTRYLO0); /* cp0 delay */ @@ -947,7 +947,7 @@ build_r3000_pte_reload_tlbwi(u32 **p, unsigned int pte, unsigned int tmp) * may have the probe fail bit set as a result of a trap on a * kseg2 access, i.e. without refill. Then it returns. */ -static void __init +static void __cpuinit build_r3000_tlb_reload_write(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int pte, unsigned int tmp) @@ -965,7 +965,7 @@ build_r3000_tlb_reload_write(u32 **p, struct uasm_label **l, uasm_i_rfe(p); /* branch delay */ } -static void __init +static void __cpuinit build_r3000_tlbchange_handler_head(u32 **p, unsigned int pte, unsigned int ptr) { @@ -985,7 +985,7 @@ build_r3000_tlbchange_handler_head(u32 **p, unsigned int pte, uasm_i_tlbp(p); /* load delay */ } -static void __init build_r3000_tlb_load_handler(void) +static void __cpuinit build_r3000_tlb_load_handler(void) { u32 *p = handle_tlbl; struct uasm_label *l = labels; @@ -1015,7 +1015,7 @@ static void __init build_r3000_tlb_load_handler(void) dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl)); } -static void __init build_r3000_tlb_store_handler(void) +static void __cpuinit build_r3000_tlb_store_handler(void) { u32 *p = handle_tlbs; struct uasm_label *l = labels; @@ -1045,7 +1045,7 @@ static void __init build_r3000_tlb_store_handler(void) dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs)); } -static void __init build_r3000_tlb_modify_handler(void) +static void __cpuinit build_r3000_tlb_modify_handler(void) { u32 *p = handle_tlbm; struct uasm_label *l = labels; @@ -1078,7 +1078,7 @@ static void __init build_r3000_tlb_modify_handler(void) /* * R4000 style TLB load/store/modify handlers. */ -static void __init +static void __cpuinit build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int pte, unsigned int ptr) @@ -1103,7 +1103,7 @@ build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l, build_tlb_probe_entry(p); } -static void __init +static void __cpuinit build_r4000_tlbchange_handler_tail(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int tmp, unsigned int ptr) @@ -1120,7 +1120,7 @@ build_r4000_tlbchange_handler_tail(u32 **p, struct uasm_label **l, #endif } -static void __init build_r4000_tlb_load_handler(void) +static void __cpuinit build_r4000_tlb_load_handler(void) { u32 *p = handle_tlbl; struct uasm_label *l = labels; @@ -1160,7 +1160,7 @@ static void __init build_r4000_tlb_load_handler(void) dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl)); } -static void __init build_r4000_tlb_store_handler(void) +static void __cpuinit build_r4000_tlb_store_handler(void) { u32 *p = handle_tlbs; struct uasm_label *l = labels; @@ -1191,7 +1191,7 @@ static void __init build_r4000_tlb_store_handler(void) dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs)); } -static void __init build_r4000_tlb_modify_handler(void) +static void __cpuinit build_r4000_tlb_modify_handler(void) { u32 *p = handle_tlbm; struct uasm_label *l = labels; @@ -1223,7 +1223,7 @@ static void __init build_r4000_tlb_modify_handler(void) dump_handler(handle_tlbm, ARRAY_SIZE(handle_tlbm)); } -void __init build_tlb_refill_handler(void) +void __cpuinit build_tlb_refill_handler(void) { /* * The refill handler is generated per-CPU, multi-node systems @@ -1269,7 +1269,7 @@ void __init build_tlb_refill_handler(void) } } -void __init flush_tlb_handlers(void) +void __cpuinit flush_tlb_handlers(void) { flush_icache_range((unsigned long)handle_tlbl, (unsigned long)handle_tlbl + sizeof(handle_tlbl)); diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c index e3f74ed5f70..1a6f7704cc8 100644 --- a/arch/mips/mm/uasm.c +++ b/arch/mips/mm/uasm.c @@ -82,7 +82,7 @@ struct insn { | (e) << RE_SH \ | (f) << FUNC_SH) -static struct insn insn_table[] __initdata = { +static struct insn insn_table[] __cpuinitdata = { { insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD }, { insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD }, @@ -135,7 +135,7 @@ static struct insn insn_table[] __initdata = { #undef M -static inline __init u32 build_rs(u32 arg) +static inline __cpuinit u32 build_rs(u32 arg) { if (arg & ~RS_MASK) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -143,7 +143,7 @@ static inline __init u32 build_rs(u32 arg) return (arg & RS_MASK) << RS_SH; } -static inline __init u32 build_rt(u32 arg) +static inline __cpuinit u32 build_rt(u32 arg) { if (arg & ~RT_MASK) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -151,7 +151,7 @@ static inline __init u32 build_rt(u32 arg) return (arg & RT_MASK) << RT_SH; } -static inline __init u32 build_rd(u32 arg) +static inline __cpuinit u32 build_rd(u32 arg) { if (arg & ~RD_MASK) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -159,7 +159,7 @@ static inline __init u32 build_rd(u32 arg) return (arg & RD_MASK) << RD_SH; } -static inline __init u32 build_re(u32 arg) +static inline __cpuinit u32 build_re(u32 arg) { if (arg & ~RE_MASK) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -167,7 +167,7 @@ static inline __init u32 build_re(u32 arg) return (arg & RE_MASK) << RE_SH; } -static inline __init u32 build_simm(s32 arg) +static inline __cpuinit u32 build_simm(s32 arg) { if (arg > 0x7fff || arg < -0x8000) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -175,7 +175,7 @@ static inline __init u32 build_simm(s32 arg) return arg & 0xffff; } -static inline __init u32 build_uimm(u32 arg) +static inline __cpuinit u32 build_uimm(u32 arg) { if (arg & ~IMM_MASK) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -183,7 +183,7 @@ static inline __init u32 build_uimm(u32 arg) return arg & IMM_MASK; } -static inline __init u32 build_bimm(s32 arg) +static inline __cpuinit u32 build_bimm(s32 arg) { if (arg > 0x1ffff || arg < -0x20000) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -194,7 +194,7 @@ static inline __init u32 build_bimm(s32 arg) return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff); } -static inline __init u32 build_jimm(u32 arg) +static inline __cpuinit u32 build_jimm(u32 arg) { if (arg & ~((JIMM_MASK) << 2)) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -202,7 +202,7 @@ static inline __init u32 build_jimm(u32 arg) return (arg >> 2) & JIMM_MASK; } -static inline __init u32 build_func(u32 arg) +static inline __cpuinit u32 build_func(u32 arg) { if (arg & ~FUNC_MASK) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -210,7 +210,7 @@ static inline __init u32 build_func(u32 arg) return arg & FUNC_MASK; } -static inline __init u32 build_set(u32 arg) +static inline __cpuinit u32 build_set(u32 arg) { if (arg & ~SET_MASK) printk(KERN_WARNING "Micro-assembler field overflow\n"); @@ -222,7 +222,7 @@ static inline __init u32 build_set(u32 arg) * The order of opcode arguments is implicitly left to right, * starting with RS and ending with FUNC or IMM. */ -static void __init build_insn(u32 **buf, enum opcode opc, ...) +static void __cpuinit build_insn(u32 **buf, enum opcode opc, ...) { struct insn *ip = NULL; unsigned int i; @@ -375,14 +375,14 @@ I_u3u1u2(_xor) I_u2u1u3(_xori) /* Handle labels. */ -void __init uasm_build_label(struct uasm_label **lab, u32 *addr, int lid) +void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid) { (*lab)->addr = addr; (*lab)->lab = lid; (*lab)++; } -int __init uasm_in_compat_space_p(long addr) +int __cpuinit uasm_in_compat_space_p(long addr) { /* Is this address in 32bit compat space? */ #ifdef CONFIG_64BIT @@ -392,7 +392,7 @@ int __init uasm_in_compat_space_p(long addr) #endif } -int __init uasm_rel_highest(long val) +int __cpuinit uasm_rel_highest(long val) { #ifdef CONFIG_64BIT return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000; @@ -401,7 +401,7 @@ int __init uasm_rel_highest(long val) #endif } -int __init uasm_rel_higher(long val) +int __cpuinit uasm_rel_higher(long val) { #ifdef CONFIG_64BIT return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000; @@ -410,17 +410,17 @@ int __init uasm_rel_higher(long val) #endif } -int __init uasm_rel_hi(long val) +int __cpuinit uasm_rel_hi(long val) { return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000; } -int __init uasm_rel_lo(long val) +int __cpuinit uasm_rel_lo(long val) { return ((val & 0xffff) ^ 0x8000) - 0x8000; } -void __init UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr) +void __cpuinit UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr) { if (!uasm_in_compat_space_p(addr)) { uasm_i_lui(buf, rs, uasm_rel_highest(addr)); @@ -436,7 +436,7 @@ void __init UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr) uasm_i_lui(buf, rs, uasm_rel_hi(addr)); } -void __init UASM_i_LA(u32 **buf, unsigned int rs, long addr) +void __cpuinit UASM_i_LA(u32 **buf, unsigned int rs, long addr) { UASM_i_LA_mostly(buf, rs, addr); if (uasm_rel_lo(addr)) { @@ -448,7 +448,7 @@ void __init UASM_i_LA(u32 **buf, unsigned int rs, long addr) } /* Handle relocations. */ -void __init +void __cpuinit uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid) { (*rel)->addr = addr; @@ -457,7 +457,7 @@ uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid) (*rel)++; } -static inline void __init +static inline void __cpuinit __resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) { long laddr = (long)lab->addr; @@ -474,7 +474,7 @@ __resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) } } -void __init +void __cpuinit uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) { struct uasm_label *l; @@ -485,7 +485,7 @@ uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) __resolve_relocs(rel, l); } -void __init +void __cpuinit uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off) { for (; rel->lab != UASM_LABEL_INVALID; rel++) @@ -493,7 +493,7 @@ uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off) rel->addr += off; } -void __init +void __cpuinit uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off) { for (; lab->lab != UASM_LABEL_INVALID; lab++) @@ -501,7 +501,7 @@ uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off) lab->addr += off; } -void __init +void __cpuinit uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first, u32 *end, u32 *target) { @@ -513,7 +513,7 @@ uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first, uasm_move_labels(lab, first, end, off); } -int __init uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr) +int __cpuinit uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr) { for (; rel->lab != UASM_LABEL_INVALID; rel++) { if (rel->addr == addr @@ -526,49 +526,49 @@ int __init uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr) } /* Convenience functions for labeled branches. */ -void __init +void __cpuinit uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); uasm_i_bltz(p, reg, 0); } -void __init +void __cpuinit uasm_il_b(u32 **p, struct uasm_reloc **r, int lid) { uasm_r_mips_pc16(r, *p, lid); uasm_i_b(p, 0); } -void __init +void __cpuinit uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); uasm_i_beqz(p, reg, 0); } -void __init +void __cpuinit uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); uasm_i_beqzl(p, reg, 0); } -void __init +void __cpuinit uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); uasm_i_bnez(p, reg, 0); } -void __init +void __cpuinit uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); uasm_i_bgezl(p, reg, 0); } -void __init +void __cpuinit uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) { uasm_r_mips_pc16(r, *p, lid); diff --git a/arch/mips/mm/uasm.h b/arch/mips/mm/uasm.h index a10fc1135c7..fe0574f6e77 100644 --- a/arch/mips/mm/uasm.h +++ b/arch/mips/mm/uasm.h @@ -11,38 +11,38 @@ #include #define Ip_u1u2u3(op) \ -void __init \ +void __cpuinit \ uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) #define Ip_u2u1u3(op) \ -void __init \ +void __cpuinit \ uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) #define Ip_u3u1u2(op) \ -void __init \ +void __cpuinit \ uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) #define Ip_u1u2s3(op) \ -void __init \ +void __cpuinit \ uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) #define Ip_u2s3u1(op) \ -void __init \ +void __cpuinit \ uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c) #define Ip_u2u1s3(op) \ -void __init \ +void __cpuinit \ uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) #define Ip_u1u2(op) \ -void __init uasm_i##op(u32 **buf, unsigned int a, unsigned int b) +void __cpuinit uasm_i##op(u32 **buf, unsigned int a, unsigned int b) #define Ip_u1s2(op) \ -void __init uasm_i##op(u32 **buf, unsigned int a, signed int b) +void __cpuinit uasm_i##op(u32 **buf, unsigned int a, signed int b) -#define Ip_u1(op) void __init uasm_i##op(u32 **buf, unsigned int a) +#define Ip_u1(op) void __cpuinit uasm_i##op(u32 **buf, unsigned int a) -#define Ip_0(op) void __init uasm_i##op(u32 **buf) +#define Ip_0(op) void __cpuinit uasm_i##op(u32 **buf) Ip_u2u1s3(_addiu); Ip_u3u1u2(_addu); @@ -98,19 +98,19 @@ struct uasm_label { int lab; }; -void __init uasm_build_label(struct uasm_label **lab, u32 *addr, int lid); +void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid); #ifdef CONFIG_64BIT -int __init uasm_in_compat_space_p(long addr); -int __init uasm_rel_highest(long val); -int __init uasm_rel_higher(long val); +int uasm_in_compat_space_p(long addr); +int uasm_rel_highest(long val); +int uasm_rel_higher(long val); #endif -int __init uasm_rel_hi(long val); -int __init uasm_rel_lo(long val); -void __init UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); -void __init UASM_i_LA(u32 **buf, unsigned int rs, long addr); +int uasm_rel_hi(long val); +int uasm_rel_lo(long val); +void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); +void UASM_i_LA(u32 **buf, unsigned int rs, long addr); #define UASM_L_LA(lb) \ -static inline void __init uasm_l##lb(struct uasm_label **lab, u32 *addr) \ +static inline void __cpuinit uasm_l##lb(struct uasm_label **lab, u32 *addr) \ { \ uasm_build_label(lab, addr, label##lb); \ } @@ -164,29 +164,19 @@ struct uasm_reloc { /* This is zero so we can use zeroed label arrays. */ #define UASM_LABEL_INVALID 0 -void __init uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid); -void __init -uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); -void __init -uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off); -void __init -uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off); -void __init -uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first, - u32 *end, u32 *target); -int __init uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr); +void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid); +void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); +void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off); +void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off); +void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, + u32 *first, u32 *end, u32 *target); +int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr); /* Convenience functions for labeled branches. */ -void __init -uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); -void __init uasm_il_b(u32 **p, struct uasm_reloc **r, int lid); -void __init -uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); -void __init -uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); -void __init -uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); -void __init -uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); -void __init -uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid); +void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c index a322543ac34..bb64828a92f 100644 --- a/arch/mips/pci/pci-ip27.c +++ b/arch/mips/pci/pci-ip27.c @@ -40,7 +40,7 @@ int irq_to_slot[MAX_PCI_BUSSES * MAX_DEVICES_PER_PCIBUS]; extern struct pci_ops bridge_pci_ops; -int __init bridge_probe(nasid_t nasid, int widget_id, int masterwid) +int __cpuinit bridge_probe(nasid_t nasid, int widget_id, int masterwid) { unsigned long offset = NODE_OFFSET(nasid); struct bridge_controller *bc; diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index f9471d77c09..358ad621094 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -260,7 +260,7 @@ static void pcibios_fixup_device_resources(struct pci_dev *dev, } } -void pcibios_fixup_bus(struct pci_bus *bus) +void __devinit pcibios_fixup_bus(struct pci_bus *bus) { /* Propagate hose info into the subordinate devices. */ diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c index a49e7c85f72..7093e7c573a 100644 --- a/arch/mips/sgi-ip27/ip27-init.c +++ b/arch/mips/sgi-ip27/ip27-init.c @@ -53,7 +53,7 @@ extern void pcibr_setup(cnodeid_t); extern void xtalk_probe_node(cnodeid_t nid); -static void __init per_hub_init(cnodeid_t cnode) +static void __cpuinit per_hub_init(cnodeid_t cnode) { struct hub_data *hub = hub_data(cnode); nasid_t nasid = COMPACT_TO_NASID_NODEID(cnode); diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c index 08d45369be4..25d3baf0ebc 100644 --- a/arch/mips/sgi-ip27/ip27-timer.c +++ b/arch/mips/sgi-ip27/ip27-timer.c @@ -285,7 +285,7 @@ void __cpuinit cpu_time_init(void) set_c0_status(SRB_TIMOCLK); } -void __init hub_rtc_init(cnodeid_t cnode) +void __cpuinit hub_rtc_init(cnodeid_t cnode) { /* * We only need to initialize the current node. diff --git a/arch/mips/sgi-ip27/ip27-xtalk.c b/arch/mips/sgi-ip27/ip27-xtalk.c index fc82f34a32c..6ae64e8dfc4 100644 --- a/arch/mips/sgi-ip27/ip27-xtalk.c +++ b/arch/mips/sgi-ip27/ip27-xtalk.c @@ -22,7 +22,7 @@ extern int bridge_probe(nasid_t nasid, int widget, int masterwid); -static int __init probe_one_port(nasid_t nasid, int widget, int masterwid) +static int __cpuinit probe_one_port(nasid_t nasid, int widget, int masterwid) { widgetreg_t widget_id; xwidget_part_num_t partnum; @@ -46,7 +46,7 @@ static int __init probe_one_port(nasid_t nasid, int widget, int masterwid) return 0; } -static int __init xbow_probe(nasid_t nasid) +static int __cpuinit xbow_probe(nasid_t nasid) { lboard_t *brd; klxbow_t *xbow_p; @@ -99,7 +99,7 @@ static int __init xbow_probe(nasid_t nasid) return 0; } -void __init xtalk_probe_node(cnodeid_t nid) +void __cpuinit xtalk_probe_node(cnodeid_t nid) { volatile u64 hubreg; nasid_t nasid; diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h index 4933b4947ed..01e7eadc97e 100644 --- a/include/asm-mips/cacheflush.h +++ b/include/asm-mips/cacheflush.h @@ -93,7 +93,7 @@ extern void (*flush_data_cache_page)(unsigned long addr); clear_bit(PG_dcache_dirty, &(page)->flags) /* Run kernel code uncached, useful for cache probing functions. */ -unsigned long __init run_uncached(void *func); +unsigned long run_uncached(void *func); extern void *kmap_coherent(struct page *page, unsigned long addr); extern void kunmap_coherent(void); -- GitLab From 2ac7401d11370b7a8e3a1c74aac03a021fd61048 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 10 Mar 2008 09:31:50 +0000 Subject: [PATCH 787/923] [MIPS] Fix yosemite build error didn't pickup the definition of PKMAP_BASE from fixmap.h, ugh. Signed-off-by: Ralf Baechle --- include/asm-mips/highmem.h | 1 - include/asm-mips/pgtable-32.h | 2 ++ 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/include/asm-mips/highmem.h b/include/asm-mips/highmem.h index 4d6bd5c31c7..4374ab2adc7 100644 --- a/include/asm-mips/highmem.h +++ b/include/asm-mips/highmem.h @@ -39,7 +39,6 @@ extern pte_t *pkmap_page_table; * easily, subsequent pte tables have to be allocated in one physical * chunk of RAM. */ -#define PKMAP_BASE (0xfe000000UL) #define LAST_PKMAP 1024 #define LAST_PKMAP_MASK (LAST_PKMAP-1) #define PKMAP_NR(virt) ((virt-PKMAP_BASE) >> PAGE_SHIFT) diff --git a/include/asm-mips/pgtable-32.h b/include/asm-mips/pgtable-32.h index a0947092d0e..ceefe027c76 100644 --- a/include/asm-mips/pgtable-32.h +++ b/include/asm-mips/pgtable-32.h @@ -65,6 +65,8 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1, #define VMALLOC_START MAP_BASE +#define PKMAP_BASE (0xfe000000UL) + #ifdef CONFIG_HIGHMEM # define VMALLOC_END (PKMAP_BASE-2*PAGE_SIZE) #else -- GitLab From 41d1f19a31824605ec98fda7458f9108e490fce5 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 10 Mar 2008 12:11:48 +0000 Subject: [PATCH 788/923] [MIPS] Yosemite: Fix a few more section reference bugs. Signed-off-by: Ralf Baechle --- arch/mips/pmc-sierra/yosemite/smp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c index 653f3ec61ca..3a7df647ca7 100644 --- a/arch/mips/pmc-sierra/yosemite/smp.c +++ b/arch/mips/pmc-sierra/yosemite/smp.c @@ -7,10 +7,10 @@ #define LAUNCHSTACK_SIZE 256 -static __initdata DEFINE_SPINLOCK(launch_lock); +static __cpuinitdata DEFINE_SPINLOCK(launch_lock); -static unsigned long secondary_sp __initdata; -static unsigned long secondary_gp __initdata; +static unsigned long secondary_sp __cpuinitdata; +static unsigned long secondary_gp __cpuinitdata; static unsigned char launchstack[LAUNCHSTACK_SIZE] __initdata __attribute__((aligned(2 * sizeof(long)))); -- GitLab From e790a46429e93384eee5df426bd99995ae12da27 Mon Sep 17 00:00:00 2001 From: Thomas Bogendoerfer Date: Sat, 8 Mar 2008 19:51:55 +0100 Subject: [PATCH 789/923] [MIPS] BCM1480: Init pci controller io_map_base Signed-off-by: Thomas Bogendoerfer Signed-off-by: Ralf Baechle --- arch/mips/pci/pci-bcm1480.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c index 30ed36125bc..ab68c4318a3 100644 --- a/arch/mips/pci/pci-bcm1480.c +++ b/arch/mips/pci/pci-bcm1480.c @@ -249,8 +249,9 @@ static int __init bcm1480_pcibios_init(void) * XXX ehs: Should this happen in PCI Device mode? */ - set_io_port_base((unsigned long) - ioremap(A_BCM1480_PHYS_PCI_IO_MATCH_BYTES, 65536)); + bcm1480_controller.io_map_base = (unsigned long) + ioremap(A_BCM1480_PHYS_PCI_IO_MATCH_BYTES, 65536); + set_io_port_base(bcm1480_controller.io_map_base); isa_slot_offset = (unsigned long) ioremap(A_BCM1480_PHYS_PCI_MEM_MATCH_BYTES, 1024*1024); -- GitLab From 131b02c459db2de3aff6b213d317a6f2fa6c5d96 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 10 Mar 2008 16:20:00 +0000 Subject: [PATCH 790/923] [MIPS] Delete leftovers of old pcspeaker support. Signed-off-by: Ralf Baechle --- arch/mips/kernel/Makefile | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index ffa08362de1..9e78e1a4ca1 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -76,7 +76,6 @@ obj-$(CONFIG_PROC_FS) += proc.o obj-$(CONFIG_64BIT) += cpu-bugs64.o obj-$(CONFIG_I8253) += i8253.o -obj-$(CONFIG_PCSPEAKER) += pcspeaker.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o -- GitLab From 127f1668617ae638f90f113a32f956887acbb94a Mon Sep 17 00:00:00 2001 From: Yoichi Yuasa Date: Wed, 20 Feb 2008 23:11:53 +0900 Subject: [PATCH 791/923] [MIPS] Lasat: fix LASAT_CASCADE_IRQ Signed-off-by: Yoichi Yuasa Signed-off-by: Ralf Baechle --- include/asm-mips/mach-lasat/irq.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-mips/mach-lasat/irq.h b/include/asm-mips/mach-lasat/irq.h index da75f89f372..3a282419d5f 100644 --- a/include/asm-mips/mach-lasat/irq.h +++ b/include/asm-mips/mach-lasat/irq.h @@ -1,7 +1,7 @@ #ifndef _ASM_MACH_LASAT_IRQ_H #define _ASM_MACH_LASAT_IRQ_H -#define LASAT_CASCADE_IRQ (MIPS_CPU_IRQ_BASE + 0) +#define LASAT_CASCADE_IRQ (MIPS_CPU_IRQ_BASE + 2) #define LASAT_IRQ_BASE 8 #define LASAT_IRQ_END 23 -- GitLab From 69e634f1e27c8e5b954ea4be2d05dd744cabc0bc Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 12 Mar 2008 13:58:10 +0000 Subject: [PATCH 792/923] [MIPS] Clocksource: Only install r4k counter as clocksource if present. Signed-off-by: Ralf Baechle --- arch/mips/kernel/csrc-r4k.c | 7 ++++++- include/asm-mips/time.h | 5 +++-- 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c index 0e2b5cd81f6..86e026f067b 100644 --- a/arch/mips/kernel/csrc-r4k.c +++ b/arch/mips/kernel/csrc-r4k.c @@ -22,12 +22,17 @@ static struct clocksource clocksource_mips = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -void __init init_mips_clocksource(void) +int __init init_mips_clocksource(void) { + if (!cpu_has_counter || !mips_hpt_frequency) + return -ENXIO; + /* Calclate a somewhat reasonable rating value */ clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000; clocksource_set_clock(&clocksource_mips, mips_hpt_frequency); clocksource_register(&clocksource_mips); + + return 0; } diff --git a/include/asm-mips/time.h b/include/asm-mips/time.h index a8fd16e1981..d3bd5c5aa2e 100644 --- a/include/asm-mips/time.h +++ b/include/asm-mips/time.h @@ -64,10 +64,11 @@ static inline int mips_clockevent_init(void) * Initialize the count register as a clocksource */ #ifdef CONFIG_CEVT_R4K -extern void init_mips_clocksource(void); +extern int init_mips_clocksource(void); #else -static inline void init_mips_clocksource(void) +static inline int init_mips_clocksource(void) { + return 0; } #endif -- GitLab From 10313cbb92206450b450e14f2b3f6ccde42d9a34 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 12 Mar 2008 07:51:03 -0700 Subject: [PATCH 793/923] IPoIB: Allocate priv->tx_ring with vmalloc() Commit 7143740d ("IPoIB: Add send gather support") made struct ipoib_tx_buf significantly larger, since the mapping member changed from a single u64 to an array with MAX_SKB_FRAGS + 1 entries. This means that allocating tx_rings with kzalloc() may fail because there is not enough contiguous memory for the new, much bigger size. Fix this regression by allocating the rings with vmalloc() instead. Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_cm.c | 8 +++++--- drivers/infiniband/ulp/ipoib/ipoib_main.c | 9 +++++---- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 4e8d0281f8b..2490b2d79db 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -38,6 +38,7 @@ #include #include #include +#include #include "ipoib.h" @@ -1031,13 +1032,13 @@ static int ipoib_cm_tx_init(struct ipoib_cm_tx *p, u32 qpn, struct ipoib_dev_priv *priv = netdev_priv(p->dev); int ret; - p->tx_ring = kzalloc(ipoib_sendq_size * sizeof *p->tx_ring, - GFP_KERNEL); + p->tx_ring = vmalloc(ipoib_sendq_size * sizeof *p->tx_ring); if (!p->tx_ring) { ipoib_warn(priv, "failed to allocate tx ring\n"); ret = -ENOMEM; goto err_tx; } + memset(p->tx_ring, 0, ipoib_sendq_size * sizeof *p->tx_ring); p->qp = ipoib_cm_create_tx_qp(p->dev, p); if (IS_ERR(p->qp)) { @@ -1078,6 +1079,7 @@ err_id: ib_destroy_qp(p->qp); err_qp: p->qp = NULL; + vfree(p->tx_ring); err_tx: return ret; } @@ -1128,7 +1130,7 @@ timeout: if (p->qp) ib_destroy_qp(p->qp); - kfree(p->tx_ring); + vfree(p->tx_ring); kfree(p); } diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index f96477a8ca5..57282048865 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -41,6 +41,7 @@ #include #include #include +#include #include /* For ARPHRD_xxx */ @@ -887,13 +888,13 @@ int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port) goto out; } - priv->tx_ring = kzalloc(ipoib_sendq_size * sizeof *priv->tx_ring, - GFP_KERNEL); + priv->tx_ring = vmalloc(ipoib_sendq_size * sizeof *priv->tx_ring); if (!priv->tx_ring) { printk(KERN_WARNING "%s: failed to allocate TX ring (%d entries)\n", ca->name, ipoib_sendq_size); goto out_rx_ring_cleanup; } + memset(priv->tx_ring, 0, ipoib_sendq_size * sizeof *priv->tx_ring); /* priv->tx_head, tx_tail & tx_outstanding are already 0 */ @@ -903,7 +904,7 @@ int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port) return 0; out_tx_ring_cleanup: - kfree(priv->tx_ring); + vfree(priv->tx_ring); out_rx_ring_cleanup: kfree(priv->rx_ring); @@ -928,7 +929,7 @@ void ipoib_dev_cleanup(struct net_device *dev) ipoib_ib_dev_cleanup(dev); kfree(priv->rx_ring); - kfree(priv->tx_ring); + vfree(priv->tx_ring); priv->rx_ring = NULL; priv->tx_ring = NULL; -- GitLab From 0738c4bb8f2a8bf15178f852494643b0981f578b Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 12 Mar 2008 16:51:31 +0900 Subject: [PATCH 794/923] nommu: Provide is_vmalloc_addr() stub. Introduced in commit-id 9e2779fa281cfda13ac060753d674bbcaa23367e and ifdef'ed out for nommu in 8ca3ed87db062201e1fa15b64a9214e193fc3a8a, both approaches end up breaking the nommu build in different ways. An impressive feat for a 2-liner. Current is_vmalloc_addr() users fall in to two camps: - Determining whether to use vfree()/kfree() - Whether to do vmlist traversal (only /proc/kcore). Since we don't support /proc/kcore on nommu, that leaves the vfree()/kfree() determination use cases. nommu vfree() happens to be a wrapper to kfree() anyways, so is_vmalloc_addr() can always return 0 and end up with the right behaviour. Signed-off-by: Paul Mundt Signed-off-by: Linus Torvalds --- include/linux/mm.h | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 3f3ccfe42de..b695875d63e 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -235,15 +235,22 @@ static inline int get_page_unless_zero(struct page *page) struct page *vmalloc_to_page(const void *addr); unsigned long vmalloc_to_pfn(const void *addr); -#ifdef CONFIG_MMU -/* Determine if an address is within the vmalloc range */ +/* + * Determine if an address is within the vmalloc range + * + * On nommu, vmalloc/vfree wrap through kmalloc/kfree directly, so there + * is no special casing required. + */ static inline int is_vmalloc_addr(const void *x) { +#ifdef CONFIG_MMU unsigned long addr = (unsigned long)x; return addr >= VMALLOC_START && addr < VMALLOC_END; -} +#else + return 0; #endif +} static inline struct page *compound_head(struct page *page) { -- GitLab From a8ae50ba9336ff77d0df0943ac27b79ba0a5a521 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Wed, 12 Mar 2008 17:52:56 +0100 Subject: [PATCH 795/923] Remove from user-visible headers. It was all wrapped in '#ifdef CONFIG_BLOCK' anyway, so userspace was getting nothing useful out of it. And the special #ifndef __KERNEL__ version of 'struct partition' makes me inclined to promote an attitude of violence... Stick some comments on some of the #endifs too, while we're at it. Signed-off-by: David Woodhouse Signed-off-by: Linus Torvalds --- include/linux/Kbuild | 1 - include/linux/genhd.h | 30 +++--------------------------- 2 files changed, 3 insertions(+), 28 deletions(-) diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 994df378000..0fac822c115 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -205,7 +205,6 @@ unifdef-y += futex.h unifdef-y += fs.h unifdef-y += gameport.h unifdef-y += generic_serial.h -unifdef-y += genhd.h unifdef-y += gfs2_ondisk.h unifdef-y += hayesesp.h unifdef-y += hdlcdrv.h diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 32c2ac49a07..ecd2bf63fc8 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -55,24 +55,6 @@ enum { UNIXWARE_PARTITION = 0x63, /* Same as GNU_HURD and SCO Unix */ }; -#ifndef __KERNEL__ - -struct partition { - unsigned char boot_ind; /* 0x80 - active */ - unsigned char head; /* starting head */ - unsigned char sector; /* starting sector */ - unsigned char cyl; /* starting cylinder */ - unsigned char sys_ind; /* What partition type */ - unsigned char end_head; /* end head */ - unsigned char end_sector; /* end sector */ - unsigned char end_cyl; /* end cylinder */ - unsigned int start_sect; /* starting sector counting from 0 */ - unsigned int nr_sects; /* nr of sectors in partition */ -} __attribute__((packed)); - -#endif - -#ifdef __KERNEL__ #include #include #include @@ -228,7 +210,7 @@ static inline void part_stat_set_all(struct hd_struct *part, int value) { sizeof(struct disk_stats)); } -#else +#else /* !CONFIG_SMP */ #define __disk_stat_add(gendiskp, field, addnd) \ (gendiskp->dkstats.field += addnd) #define disk_stat_read(gendiskp, field) (gendiskp->dkstats.field) @@ -256,7 +238,7 @@ static inline void part_stat_set_all(struct hd_struct *part, int value) memset(&part->dkstats, value, sizeof(struct disk_stats)); } -#endif +#endif /* CONFIG_SMP */ #define disk_stat_add(gendiskp, field, addnd) \ do { \ @@ -395,8 +377,6 @@ static inline void set_capacity(struct gendisk *disk, sector_t size) disk->capacity = size; } -#endif /* __KERNEL__ */ - #ifdef CONFIG_SOLARIS_X86_PARTITION #define SOLARIS_X86_NUMSLICE 16 @@ -540,8 +520,6 @@ struct unixware_disklabel { # define MINIX_NR_SUBPARTITIONS 4 #endif /* CONFIG_MINIX_SUBPARTITION */ -#ifdef __KERNEL__ - #define ADDPART_FLAG_NONE 0 #define ADDPART_FLAG_RAID 1 #define ADDPART_FLAG_WHOLEDISK 2 @@ -570,8 +548,6 @@ static inline struct block_device *bdget_disk(struct gendisk *disk, int index) return bdget(MKDEV(disk->major, disk->first_minor) + index); } -#endif - #else /* CONFIG_BLOCK */ static inline void printk_all_partitions(void) { } @@ -584,4 +560,4 @@ static inline dev_t blk_lookup_devt(const char *name) #endif /* CONFIG_BLOCK */ -#endif +#endif /* _LINUX_GENHD_H */ -- GitLab From ee27a558ae0ff5063ccd6c47ca102c0bb0e3ba27 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 11 Mar 2008 17:13:15 -0700 Subject: [PATCH 796/923] genhd must_check warning fix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes: block/genhd.c:361: warning: ignoring return value of ‘class_register’, declared with attribute warn_unused_result Signed-off-by: Roland McGrath Acked-by: Jeff Garzik Signed-off-by: Linus Torvalds --- block/genhd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/block/genhd.c b/block/genhd.c index c44527d16c5..00da5219ee3 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -360,7 +360,9 @@ static struct kobject *base_probe(dev_t devt, int *part, void *data) static int __init genhd_device_init(void) { - class_register(&block_class); + int error = class_register(&block_class); + if (unlikely(error)) + return error; bdev_map = kobj_map_init(base_probe, &block_class_lock); blk_dev_init(); -- GitLab From c48cbb405c4f338ce3263c44d621eff41d9a95fc Mon Sep 17 00:00:00 2001 From: Tom Tucker Date: Tue, 11 Mar 2008 14:31:39 -0400 Subject: [PATCH 797/923] SVCRDMA: Add xprt refs to fix close/unmount crash RDMA connection shutdown on an SMP machine can cause a kernel crash due to the transport close path racing with the I/O tasklet. Additional transport references were added as follows: - A reference when on the DTO Q to avoid having the transport deleted while queued for I/O. - A reference while there is a QP able to generate events. - A reference until the DISCONNECTED event is received on the CM ID Signed-off-by: Tom Tucker Signed-off-by: J. Bruce Fields Signed-off-by: Linus Torvalds --- net/sunrpc/xprtrdma/svc_rdma_transport.c | 96 ++++++++++++++---------- 1 file changed, 58 insertions(+), 38 deletions(-) diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index f09444c451b..16fd3f6718f 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -54,7 +54,6 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv, int flags); static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt); static void svc_rdma_release_rqst(struct svc_rqst *); -static void rdma_destroy_xprt(struct svcxprt_rdma *xprt); static void dto_tasklet_func(unsigned long data); static void svc_rdma_detach(struct svc_xprt *xprt); static void svc_rdma_free(struct svc_xprt *xprt); @@ -247,6 +246,7 @@ static void dto_tasklet_func(unsigned long data) sq_cq_reap(xprt); } + svc_xprt_put(&xprt->sc_xprt); spin_lock_irqsave(&dto_lock, flags); } spin_unlock_irqrestore(&dto_lock, flags); @@ -275,8 +275,10 @@ static void rq_comp_handler(struct ib_cq *cq, void *cq_context) * add it */ spin_lock_irqsave(&dto_lock, flags); - if (list_empty(&xprt->sc_dto_q)) + if (list_empty(&xprt->sc_dto_q)) { + svc_xprt_get(&xprt->sc_xprt); list_add_tail(&xprt->sc_dto_q, &dto_xprt_q); + } spin_unlock_irqrestore(&dto_lock, flags); /* Tasklet does all the work to avoid irqsave locks. */ @@ -386,8 +388,10 @@ static void sq_comp_handler(struct ib_cq *cq, void *cq_context) * add it */ spin_lock_irqsave(&dto_lock, flags); - if (list_empty(&xprt->sc_dto_q)) + if (list_empty(&xprt->sc_dto_q)) { + svc_xprt_get(&xprt->sc_xprt); list_add_tail(&xprt->sc_dto_q, &dto_xprt_q); + } spin_unlock_irqrestore(&dto_lock, flags); /* Tasklet does all the work to avoid irqsave locks. */ @@ -611,6 +615,7 @@ static int rdma_cma_handler(struct rdma_cm_id *cma_id, switch (event->event) { case RDMA_CM_EVENT_ESTABLISHED: /* Accept complete */ + svc_xprt_get(xprt); dprintk("svcrdma: Connection completed on DTO xprt=%p, " "cm_id=%p\n", xprt, cma_id); clear_bit(RDMAXPRT_CONN_PENDING, &rdma->sc_flags); @@ -661,15 +666,15 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv, listen_id = rdma_create_id(rdma_listen_handler, cma_xprt, RDMA_PS_TCP); if (IS_ERR(listen_id)) { - rdma_destroy_xprt(cma_xprt); + svc_xprt_put(&cma_xprt->sc_xprt); dprintk("svcrdma: rdma_create_id failed = %ld\n", PTR_ERR(listen_id)); return (void *)listen_id; } ret = rdma_bind_addr(listen_id, sa); if (ret) { - rdma_destroy_xprt(cma_xprt); rdma_destroy_id(listen_id); + svc_xprt_put(&cma_xprt->sc_xprt); dprintk("svcrdma: rdma_bind_addr failed = %d\n", ret); return ERR_PTR(ret); } @@ -678,8 +683,9 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv, ret = rdma_listen(listen_id, RPCRDMA_LISTEN_BACKLOG); if (ret) { rdma_destroy_id(listen_id); - rdma_destroy_xprt(cma_xprt); + svc_xprt_put(&cma_xprt->sc_xprt); dprintk("svcrdma: rdma_listen failed = %d\n", ret); + return ERR_PTR(ret); } /* @@ -820,6 +826,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) newxprt->sc_sq_depth = qp_attr.cap.max_send_wr; newxprt->sc_max_requests = qp_attr.cap.max_recv_wr; } + svc_xprt_get(&newxprt->sc_xprt); newxprt->sc_qp = newxprt->sc_cm_id->qp; /* Register all of physical memory */ @@ -891,8 +898,15 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt) errout: dprintk("svcrdma: failure accepting new connection rc=%d.\n", ret); + /* Take a reference in case the DTO handler runs */ + svc_xprt_get(&newxprt->sc_xprt); + if (newxprt->sc_qp && !IS_ERR(newxprt->sc_qp)) { + ib_destroy_qp(newxprt->sc_qp); + svc_xprt_put(&newxprt->sc_xprt); + } rdma_destroy_id(newxprt->sc_cm_id); - rdma_destroy_xprt(newxprt); + /* This call to put will destroy the transport */ + svc_xprt_put(&newxprt->sc_xprt); return NULL; } @@ -919,54 +933,60 @@ static void svc_rdma_release_rqst(struct svc_rqst *rqstp) rqstp->rq_xprt_ctxt = NULL; } -/* Disable data ready events for this connection */ +/* + * When connected, an svc_xprt has at least three references: + * + * - A reference held by the QP. We still hold that here because this + * code deletes the QP and puts the reference. + * + * - A reference held by the cm_id between the ESTABLISHED and + * DISCONNECTED events. If the remote peer disconnected first, this + * reference could be gone. + * + * - A reference held by the svc_recv code that called this function + * as part of close processing. + * + * At a minimum two references should still be held. + */ static void svc_rdma_detach(struct svc_xprt *xprt) { struct svcxprt_rdma *rdma = container_of(xprt, struct svcxprt_rdma, sc_xprt); - unsigned long flags; - dprintk("svc: svc_rdma_detach(%p)\n", xprt); - /* - * Shutdown the connection. This will ensure we don't get any - * more events from the provider. - */ + + /* Disconnect and flush posted WQE */ rdma_disconnect(rdma->sc_cm_id); - rdma_destroy_id(rdma->sc_cm_id); - /* We may already be on the DTO list */ - spin_lock_irqsave(&dto_lock, flags); - if (!list_empty(&rdma->sc_dto_q)) - list_del_init(&rdma->sc_dto_q); - spin_unlock_irqrestore(&dto_lock, flags); + /* Destroy the QP if present (not a listener) */ + if (rdma->sc_qp && !IS_ERR(rdma->sc_qp)) { + ib_destroy_qp(rdma->sc_qp); + svc_xprt_put(xprt); + } + + /* Destroy the CM ID */ + rdma_destroy_id(rdma->sc_cm_id); } static void svc_rdma_free(struct svc_xprt *xprt) { struct svcxprt_rdma *rdma = (struct svcxprt_rdma *)xprt; dprintk("svcrdma: svc_rdma_free(%p)\n", rdma); - rdma_destroy_xprt(rdma); - kfree(rdma); -} - -static void rdma_destroy_xprt(struct svcxprt_rdma *xprt) -{ - if (xprt->sc_qp && !IS_ERR(xprt->sc_qp)) - ib_destroy_qp(xprt->sc_qp); - - if (xprt->sc_sq_cq && !IS_ERR(xprt->sc_sq_cq)) - ib_destroy_cq(xprt->sc_sq_cq); + /* We should only be called from kref_put */ + BUG_ON(atomic_read(&xprt->xpt_ref.refcount) != 0); + if (rdma->sc_sq_cq && !IS_ERR(rdma->sc_sq_cq)) + ib_destroy_cq(rdma->sc_sq_cq); - if (xprt->sc_rq_cq && !IS_ERR(xprt->sc_rq_cq)) - ib_destroy_cq(xprt->sc_rq_cq); + if (rdma->sc_rq_cq && !IS_ERR(rdma->sc_rq_cq)) + ib_destroy_cq(rdma->sc_rq_cq); - if (xprt->sc_phys_mr && !IS_ERR(xprt->sc_phys_mr)) - ib_dereg_mr(xprt->sc_phys_mr); + if (rdma->sc_phys_mr && !IS_ERR(rdma->sc_phys_mr)) + ib_dereg_mr(rdma->sc_phys_mr); - if (xprt->sc_pd && !IS_ERR(xprt->sc_pd)) - ib_dealloc_pd(xprt->sc_pd); + if (rdma->sc_pd && !IS_ERR(rdma->sc_pd)) + ib_dealloc_pd(rdma->sc_pd); - destroy_context_cache(xprt->sc_ctxt_head); + destroy_context_cache(rdma->sc_ctxt_head); + kfree(rdma); } static int svc_rdma_has_wspace(struct svc_xprt *xprt) -- GitLab From 3fedb3c5a80595d94f7cbe47a6dba9184d869eb8 Mon Sep 17 00:00:00 2001 From: Tom Tucker Date: Tue, 11 Mar 2008 14:31:40 -0400 Subject: [PATCH 798/923] SVCRDMA: Fix erroneous BUG_ON in send_write The assertion that checks for sge context overflow is incorrectly hard-coded to 32. This causes a kernel bug check when using big-data mounts. Changed the BUG_ON to use the computed value RPCSVC_MAXPAGES. Signed-off-by: Tom Tucker Signed-off-by: J. Bruce Fields Signed-off-by: Linus Torvalds --- net/sunrpc/xprtrdma/svc_rdma_sendto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c index 0598b229c11..981f190c1b3 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c +++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c @@ -156,7 +156,7 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp, struct svc_rdma_op_ctxt *ctxt; int ret = 0; - BUG_ON(sge_count >= 32); + BUG_ON(sge_count > RPCSVC_MAXPAGES); dprintk("svcrdma: RDMA_WRITE rmr=%x, to=%llx, xdr_off=%d, " "write_len=%d, xdr_sge=%p, sge_count=%d\n", rmr, (unsigned long long)to, xdr_off, -- GitLab From e0aca2330b59752193877da49c6e6b07df78690a Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 11 Mar 2008 15:24:40 -0600 Subject: [PATCH 799/923] PNP: revert Supermicro H8DCE motherboard quirk There are other systems with similar problems (http://lkml.org/lkml/2008/1/27/168), so we need a more generic quirk. Remove the Supermicro-specific one first. Signed-off-by: Bjorn Helgaas Signed-off-by: Linus Torvalds --- drivers/pnp/quirks.c | 43 ------------------------------------------- 1 file changed, 43 deletions(-) diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c index 4065139753b..e903b8c2b1f 100644 --- a/drivers/pnp/quirks.c +++ b/drivers/pnp/quirks.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include "base.h" @@ -109,46 +108,6 @@ static void quirk_sb16audio_resources(struct pnp_dev *dev) "pnp: SB audio device quirk - increasing port range\n"); } -static void quirk_supermicro_h8dce_system(struct pnp_dev *dev) -{ - int i; - static struct dmi_system_id supermicro_h8dce[] = { - { - .ident = "Supermicro H8DCE", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"), - DMI_MATCH(DMI_PRODUCT_NAME, "H8DCE"), - }, - }, - { } - }; - - if (!dmi_check_system(supermicro_h8dce)) - return; - - /* - * On the Supermicro H8DCE, there's a system device with resources - * that overlap BAR 6 of the built-in SATA PCI adapter. If the PNP - * system device claims them, the sata_nv driver won't be able to. - * More details at: - * https://bugzilla.redhat.com/show_bug.cgi?id=280641 - * https://bugzilla.redhat.com/show_bug.cgi?id=313491 - * http://lkml.org/lkml/2008/1/9/449 - * http://thread.gmane.org/gmane.linux.acpi.devel/27312 - */ - for (i = 0; i < PNP_MAX_MEM; i++) { - if (pnp_mem_valid(dev, i) && pnp_mem_len(dev, i) && - (pnp_mem_start(dev, i) & 0xdfef0000) == 0xdfef0000) { - dev_warn(&dev->dev, "disabling 0x%llx-0x%llx to prevent" - " conflict with sata_nv PCI device\n", - (unsigned long long) pnp_mem_start(dev, i), - (unsigned long long) (pnp_mem_start(dev, i) + - pnp_mem_len(dev, i) - 1)); - pnp_mem_flags(dev, i) = 0; - } - } -} - /* * PnP Quirks * Cards or devices that need some tweaking due to incomplete resource info @@ -169,8 +128,6 @@ static struct pnp_fixup pnp_fixups[] = { {"CTL0043", quirk_sb16audio_resources}, {"CTL0044", quirk_sb16audio_resources}, {"CTL0045", quirk_sb16audio_resources}, - {"PNP0c01", quirk_supermicro_h8dce_system}, - {"PNP0c02", quirk_supermicro_h8dce_system}, {""} }; -- GitLab From 0509ad5e1a7d9220f09edd5be114bf3bd51a7023 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 11 Mar 2008 15:24:41 -0600 Subject: [PATCH 800/923] PNP: disable PNP motherboard resources that overlap PCI BARs Some BIOSes have PNP motherboard devices with resources that partially overlap PCI BARs. The PNP system driver claims these motherboard resources, which prevents the normal PCI driver from requesting them later. This patch disables the PNP resources that conflict with PCI BARs so they won't be claimed by the PNP system driver. Of course, this only works if PCI devices have already been enumerated. Currently this is the case because PCI devices are discovered before any PNP init via this path: acpi_pci_root_init() -> acpi_pci_root_add() -> pci_acpi_scan_root() -> pci_scan_bus_parented() -> pci_scan_child_bus() -> ... Avuton Olrich tested this and confirmed that it fixes his ALSA sound card (see http://lkml.org/lkml/2008/1/27/168). References: https://bugzilla.redhat.com/show_bug.cgi?id=280641 https://bugzilla.redhat.com/show_bug.cgi?id=313491 http://lkml.org/lkml/2008/1/9/449 http://thread.gmane.org/gmane.linux.acpi.devel/27312 http://lkml.org/lkml/2008/1/27/168 Signed-off-by: Bjorn Helgaas Signed-off-by: Linus Torvalds --- drivers/pnp/quirks.c | 73 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c index e903b8c2b1f..37993206ae5 100644 --- a/drivers/pnp/quirks.c +++ b/drivers/pnp/quirks.c @@ -108,6 +108,77 @@ static void quirk_sb16audio_resources(struct pnp_dev *dev) "pnp: SB audio device quirk - increasing port range\n"); } + +#include + +static void quirk_system_pci_resources(struct pnp_dev *dev) +{ + struct pci_dev *pdev = NULL; + resource_size_t pnp_start, pnp_end, pci_start, pci_end; + int i, j; + + /* + * Some BIOSes have PNP motherboard devices with resources that + * partially overlap PCI BARs. The PNP system driver claims these + * motherboard resources, which prevents the normal PCI driver from + * requesting them later. + * + * This patch disables the PNP resources that conflict with PCI BARs + * so they won't be claimed by the PNP system driver. + */ + for_each_pci_dev(pdev) { + for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { + if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM) || + pci_resource_len(pdev, i) == 0) + continue; + + pci_start = pci_resource_start(pdev, i); + pci_end = pci_resource_end(pdev, i); + for (j = 0; j < PNP_MAX_MEM; j++) { + if (!pnp_mem_valid(dev, j) || + pnp_mem_len(dev, j) == 0) + continue; + + pnp_start = pnp_mem_start(dev, j); + pnp_end = pnp_mem_end(dev, j); + + /* + * If the PNP region doesn't overlap the PCI + * region at all, there's no problem. + */ + if (pnp_end < pci_start || pnp_start > pci_end) + continue; + + /* + * If the PNP region completely encloses (or is + * at least as large as) the PCI region, that's + * also OK. For example, this happens when the + * PNP device describes a bridge with PCI + * behind it. + */ + if (pnp_start <= pci_start && + pnp_end >= pci_end) + continue; + + /* + * Otherwise, the PNP region overlaps *part* of + * the PCI region, and that might prevent a PCI + * driver from requesting its resources. + */ + dev_warn(&dev->dev, "mem resource " + "(0x%llx-0x%llx) overlaps %s BAR %d " + "(0x%llx-0x%llx), disabling\n", + (unsigned long long) pnp_start, + (unsigned long long) pnp_end, + pci_name(pdev), i, + (unsigned long long) pci_start, + (unsigned long long) pci_end); + pnp_mem_flags(dev, j) = 0; + } + } + } +} + /* * PnP Quirks * Cards or devices that need some tweaking due to incomplete resource info @@ -128,6 +199,8 @@ static struct pnp_fixup pnp_fixups[] = { {"CTL0043", quirk_sb16audio_resources}, {"CTL0044", quirk_sb16audio_resources}, {"CTL0045", quirk_sb16audio_resources}, + {"PNP0c01", quirk_system_pci_resources}, + {"PNP0c02", quirk_system_pci_resources}, {""} }; -- GitLab From 8d039bc7f3d2330787eaa7a392f5e6489f1544d5 Mon Sep 17 00:00:00 2001 From: Carlos Corbacho Date: Wed, 12 Mar 2008 20:12:50 +0000 Subject: [PATCH 801/923] acer-wmi: Make device detection error messages more descriptive The current device detection error messages are all copy & pasted - make them more descriptive so it's easier to see where in the code a problem occurs. Signed-off-by: Carlos Corbacho Signed-off-by: Len Brown --- drivers/misc/acer-wmi.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c index 49846bd2b5c..9af733b3f2a 100644 --- a/drivers/misc/acer-wmi.c +++ b/drivers/misc/acer-wmi.c @@ -1052,11 +1052,12 @@ static int __init acer_wmi_init(void) if (wmi_has_guid(WMID_GUID2) && interface) { if (ACPI_FAILURE(WMID_set_capabilities())) { - printk(ACER_ERR "Unable to detect available devices\n"); + printk(ACER_ERR "Unable to detect available WMID " + "devices\n"); return -ENODEV; } } else if (!wmi_has_guid(WMID_GUID2) && interface) { - printk(ACER_ERR "Unable to detect available devices\n"); + printk(ACER_ERR "No WMID device detection method found\n"); return -ENODEV; } @@ -1064,7 +1065,8 @@ static int __init acer_wmi_init(void) interface = &AMW0_interface; if (ACPI_FAILURE(AMW0_set_capabilities())) { - printk(ACER_ERR "Unable to detect available devices\n"); + printk(ACER_ERR "Unable to detect available AMW0 " + "devices\n"); return -ENODEV; } } @@ -1075,8 +1077,8 @@ static int __init acer_wmi_init(void) find_quirks(); if (!interface) { - printk(ACER_ERR "No or unsupported WMI interface, unable to "); - printk(KERN_CONT "load.\n"); + printk(ACER_ERR "No or unsupported WMI interface, unable to " + "load\n"); return -ENODEV; } -- GitLab From 08816465894f46fc559301c22686939c3c9c138b Mon Sep 17 00:00:00 2001 From: Carlos Corbacho Date: Wed, 12 Mar 2008 20:12:55 +0000 Subject: [PATCH 802/923] acer-wmi: Fix DSDT path in documentation Signed-off-by: Carlos Corbacho Signed-off-by: Len Brown --- Documentation/laptops/acer-wmi.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/laptops/acer-wmi.txt b/Documentation/laptops/acer-wmi.txt index a346c8666d2..23df051dbf6 100644 --- a/Documentation/laptops/acer-wmi.txt +++ b/Documentation/laptops/acer-wmi.txt @@ -48,7 +48,7 @@ DSDT. To send me the DSDT, as root/sudo: -cat /sys/firmware/acpi/DSDT > dsdt +cat /sys/firmware/acpi/tables/DSDT > dsdt And send me the resulting 'dsdt' file. -- GitLab From ed9cfe98050be635ff780678d166e7c7bf578818 Mon Sep 17 00:00:00 2001 From: Carlos Corbacho Date: Wed, 12 Mar 2008 20:13:00 +0000 Subject: [PATCH 803/923] acer-wmi: Add DMI quirk for mail LED support on Acer Aspire 3610/ 5610 Signed-off-by: Carlos Corbacho Signed-off-by: Len Brown --- drivers/misc/acer-wmi.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c index 9af733b3f2a..05fd9cc42e6 100644 --- a/drivers/misc/acer-wmi.c +++ b/drivers/misc/acer-wmi.c @@ -217,6 +217,15 @@ static struct dmi_system_id acer_quirks[] = { }, .driver_data = &quirk_acer_travelmate_2490, }, + { + .callback = dmi_matched, + .ident = "Acer Aspire 3610", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"), + }, + .driver_data = &quirk_acer_travelmate_2490, + }, { .callback = dmi_matched, .ident = "Acer Aspire 5100", @@ -226,6 +235,15 @@ static struct dmi_system_id acer_quirks[] = { }, .driver_data = &quirk_acer_travelmate_2490, }, + { + .callback = dmi_matched, + .ident = "Acer Aspire 5610", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), + }, + .driver_data = &quirk_acer_travelmate_2490, + }, { .callback = dmi_matched, .ident = "Acer Aspire 5630", -- GitLab From c8dc9de10951609492f0d0282a61e2b2eec385c8 Mon Sep 17 00:00:00 2001 From: Johann Felix Soden Date: Tue, 11 Mar 2008 16:44:26 +0100 Subject: [PATCH 804/923] ACPI: buffer array too short in drivers/acpi/system.c Since "ff_gbl_lock" has a length of 11 chars and is copied with sprintf to char buffer[10], there is a problem. We need char buffer[12] because of the closing zero byte. Signed-off-by: Johann Felix Soden Signed-off-by: Len Brown --- drivers/acpi/system.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index 55cf4c05bb7..4749f379a91 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -319,7 +319,7 @@ void acpi_irq_stats_init(void) goto fail; for (i = 0; i < num_counters; ++i) { - char buffer[10]; + char buffer[12]; char *name; if (i < num_gpes) -- GitLab From 53471121a8aad3f0b590bfce7c95a1f5f52150f3 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 12 Mar 2008 18:10:51 -0400 Subject: [PATCH 805/923] documentation: Move power-related files to Documentation/power/ Move 00-INDEX entries to power/00-INDEX (and add entry for pm_qos_interface.txt). Update references to moved filenames. Fix some trailing whitespace. Signed-off-by: Randy Dunlap Signed-off-by: Len Brown --- Documentation/00-INDEX | 4 ---- Documentation/kernel-parameters.txt | 2 +- Documentation/power/00-INDEX | 6 ++++++ Documentation/{ => power}/pm.txt | 2 +- Documentation/{ => power}/pm_qos_interface.txt | 0 Documentation/{ => power}/power_supply_class.txt | 0 arch/x86/Kconfig | 2 +- kernel/power/Kconfig | 2 +- 8 files changed, 10 insertions(+), 8 deletions(-) rename Documentation/{ => power}/pm.txt (99%) rename Documentation/{ => power}/pm_qos_interface.txt (100%) rename Documentation/{ => power}/power_supply_class.txt (100%) diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 1d51c0c5781..fc8e7c7d182 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -299,12 +299,8 @@ pcmcia/ - info on the Linux PCMCIA driver. pi-futex.txt - documentation on lightweight PI-futexes. -pm.txt - - info on Linux power management support. pnp.txt - Linux Plug and Play documentation. -power_supply_class.txt - - Tells userspace about battery, UPS, AC or DC power supply properties power/ - directory with info on Linux PCI power management. powerpc/ diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 533e67febf8..49318b99e58 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -138,7 +138,7 @@ and is between 256 and 4096 characters. It is defined in the file strict -- Be less tolerant of platforms that are not strictly ACPI specification compliant. - See also Documentation/pm.txt, pci=noacpi + See also Documentation/power/pm.txt, pci=noacpi acpi_apic_instance= [ACPI, IOAPIC] Format: diff --git a/Documentation/power/00-INDEX b/Documentation/power/00-INDEX index 8db4e41a052..a55d7f1c836 100644 --- a/Documentation/power/00-INDEX +++ b/Documentation/power/00-INDEX @@ -14,6 +14,12 @@ notifiers.txt - Registering suspend notifiers in device drivers pci.txt - How the PCI Subsystem Does Power Management +pm.txt + - info on Linux power management support. +pm_qos_interface.txt + - info on Linux PM Quality of Service interface +power_supply_class.txt + - Tells userspace about battery, UPS, AC or DC power supply properties s2ram.txt - How to get suspend to ram working (and debug it when it isn't) states.txt diff --git a/Documentation/pm.txt b/Documentation/power/pm.txt similarity index 99% rename from Documentation/pm.txt rename to Documentation/power/pm.txt index da8589a0e07..be841507e43 100644 --- a/Documentation/pm.txt +++ b/Documentation/power/pm.txt @@ -108,7 +108,7 @@ void pm_unregister_all(pm_callback cback); * EINVAL if the request is not supported * EBUSY if the device is now busy and cannot handle the request * ENOMEM if the device was unable to handle the request due to memory - * + * * Details: The device request callback will be called before the * device/system enters a suspend state (ACPI D1-D3) or * or after the device/system resumes from suspend (ACPI D0). diff --git a/Documentation/pm_qos_interface.txt b/Documentation/power/pm_qos_interface.txt similarity index 100% rename from Documentation/pm_qos_interface.txt rename to Documentation/power/pm_qos_interface.txt diff --git a/Documentation/power_supply_class.txt b/Documentation/power/power_supply_class.txt similarity index 100% rename from Documentation/power_supply_class.txt rename to Documentation/power/power_supply_class.txt diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 237fc128143..6c70fed0f9a 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1259,7 +1259,7 @@ menuconfig APM machines with more than one CPU. In order to use APM, you will need supporting software. For location - and more information, read and the + and more information, read and the Battery Powered Linux mini-HOWTO, available from . diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 79833170bb9..6233f3b4ae6 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -190,7 +190,7 @@ config APM_EMULATION notification of APM "events" (e.g. battery status change). In order to use APM, you will need supporting software. For location - and more information, read and the + and more information, read and the Battery Powered Linux mini-HOWTO, available from . -- GitLab From 95ff54f5176a36f65522e46c670a571728328b10 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Thu, 13 Mar 2008 09:39:55 +1100 Subject: [PATCH 806/923] [POWERPC] Add __ucmpdi2 for 64-bit comparisons in 32-bit kernels Some drivers (such as V4L2) have code that causes gcc to generate calls to __ucmpdi2 when compiling for 32-bit powerpc, which results in either a link-time error or a module that can't be loaded, as we don't currently have a __ucmpdi2. This adds one so these drivers can be used. Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/misc_32.S | 15 +++++++++++++++ arch/powerpc/kernel/ppc_ksyms.c | 2 ++ 2 files changed, 17 insertions(+) diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 5c2e253ddfb..9d2c56621f1 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -785,6 +785,21 @@ _GLOBAL(__lshrdi3) or r4,r4,r7 # LSW |= t2 blr +/* + * 64-bit comparison: __ucmpdi2(u64 a, u64 b) + * Returns 0 if a < b, 1 if a == b, 2 if a > b. + */ +_GLOBAL(__ucmpdi2) + cmplw r3,r5 + li r3,1 + bne 1f + cmplw r4,r6 + beqlr +1: li r3,0 + bltlr + li r3,2 + blr + _GLOBAL(abs) srawi r4,r3,31 xor r3,r3,r4 diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index aa9ff35b0e6..3e52122c507 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -149,6 +149,8 @@ long long __lshrdi3(long long, int); EXPORT_SYMBOL(__ashrdi3); EXPORT_SYMBOL(__ashldi3); EXPORT_SYMBOL(__lshrdi3); +int __ucmpdi2(unsigned long long, unsigned long long); +EXPORT_SYMBOL(__ucmpdi2); #endif EXPORT_SYMBOL(memcpy); -- GitLab From 595be948cce574ff2d5dde5d0426a636a4363c70 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Fri, 22 Feb 2008 05:57:07 +1100 Subject: [PATCH 807/923] [POWERPC] Fix zImage-dtb.initrd build error The pattern substitution rules were failing when used with zImage-dtb targets. If zImage-dtb.initrd was selected, the pattern substitution would generate "zImage.initrd-dtb" instead of "zImage-dtb.initrd" which caused the build to fail. This renames zImage-dtb to dtbImage to avoid the problem entirely. By not using the zImage prefix then is no potential for namespace collisions. Signed-off-by: Grant Likely Acked-by: Geoff Levand Signed-off-by: Paul Mackerras --- arch/powerpc/Makefile | 2 +- arch/powerpc/boot/Makefile | 18 ++++++++++-------- 2 files changed, 11 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 1c6ce3536e4..ab5cfe8ef98 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -155,7 +155,7 @@ all: zImage CPPFLAGS_vmlinux.lds := -Upowerpc -BOOT_TARGETS = zImage zImage.initrd uImage treeImage.% cuImage.% +BOOT_TARGETS = zImage zImage.initrd uImage zImage% dtbImage% treeImage.% cuImage.% PHONY += $(BOOT_TARGETS) diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index e3993a60758..4974d9e56ea 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -186,7 +186,7 @@ quiet_cmd_wrap = WRAP $@ image-$(CONFIG_PPC_PSERIES) += zImage.pseries image-$(CONFIG_PPC_MAPLE) += zImage.pseries image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries -image-$(CONFIG_PPC_PS3) += zImage-dtb.ps3 +image-$(CONFIG_PPC_PS3) += dtbImage.ps3 image-$(CONFIG_PPC_CELLEB) += zImage.pseries image-$(CONFIG_PPC_CHRP) += zImage.chrp image-$(CONFIG_PPC_EFIKA) += zImage.chrp @@ -205,7 +205,7 @@ image-$(CONFIG_DEFAULT_UIMAGE) += uImage # # Board ports in arch/powerpc/platform/40x/Kconfig -image-$(CONFIG_EP405) += zImage-dtb.ep405 +image-$(CONFIG_EP405) += dtbImage.ep405 image-$(CONFIG_WALNUT) += treeImage.walnut # Board ports in arch/powerpc/platform/44x/Kconfig @@ -220,9 +220,9 @@ image-$(CONFIG_WARP) += cuImage.warp # Board ports in arch/powerpc/platform/8xx/Kconfig image-$(CONFIG_PPC_MPC86XADS) += cuImage.mpc866ads image-$(CONFIG_PPC_MPC885ADS) += cuImage.mpc885ads -image-$(CONFIG_PPC_EP88XC) += zImage-dtb.ep88xc +image-$(CONFIG_PPC_EP88XC) += dtbImage.ep88xc image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \ - zImage-dtb.adder875-redboot + dtbImage.adder875-redboot # Board ports in arch/powerpc/platform/52xx/Kconfig image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 cuImage.lite5200b @@ -230,7 +230,7 @@ image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 cuImage.lite5200b # Board ports in arch/powerpc/platform/82xx/Kconfig image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads image-$(CONFIG_PQ2FADS) += cuImage.pq2fads -image-$(CONFIG_EP8248E) += zImage-dtb.ep8248e +image-$(CONFIG_EP8248E) += dtbImage.ep8248e # Board ports in arch/powerpc/platform/83xx/Kconfig image-$(CONFIG_MPC832x_MDS) += cuImage.mpc832x_mds @@ -268,7 +268,8 @@ endif initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-)) initrd-y := $(patsubst zImage%, zImage.initrd%, \ - $(patsubst treeImage%, treeImage.initrd%, $(image-y))) + $(patsubst dtbImage%, dtbImage.initrd%, \ + $(patsubst treeImage%, treeImage.initrd%, $(image-y)))) initrd-y := $(filter-out $(image-y), $(initrd-y)) targets += $(image-y) $(initrd-y) @@ -283,10 +284,11 @@ $(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(obj)/zImage.%: vmlinux $(wrapperbits) $(call if_changed,wrap,$*) -$(obj)/zImage-dtb.initrd.%: vmlinux $(wrapperbits) $(dtstree)/%.dts +# dtbImage% - a dtbImage is a zImage with an embedded device tree blob +$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(dtstree)/%.dts $(call if_changed,wrap,$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz) -$(obj)/zImage-dtb.%: vmlinux $(wrapperbits) $(dtstree)/%.dts +$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(dtstree)/%.dts $(call if_changed,wrap,$*,$(dtstree)/$*.dts) # This cannot be in the root of $(src) as the zImage rule always adds a $(obj) -- GitLab From 7f172890a8f8744c4005c267ae9e228411ab173f Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 29 Feb 2008 14:58:03 +1100 Subject: [PATCH 808/923] [POWERPC] Fix bogus test for unassigned PCI resources A bogus test for unassigned resources that came from our 32-bit PCI code ended up being "merged" by my previous patch series, breaking some 64-bit setups where devices have legal resources ending at 0xffffffff. This fixes it by completely changing the test. We now test for res->start == 0, as the generic code expects, and we also only do so on platforms that don't have the PPC_PCI_PROBE_ONLY flag set, as there are cases of pSeries and iSeries where it could be a valid value and those can't reassign devices. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/pci-common.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 980fe32895c..89c83ccb85c 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -748,7 +748,13 @@ static void __devinit pcibios_fixup_resources(struct pci_dev *dev) struct resource *res = dev->resource + i; if (!res->flags) continue; - if (res->end == 0xffffffff) { + /* On platforms that have PPC_PCI_PROBE_ONLY set, we don't + * consider 0 as an unassigned BAR value. It's technically + * a valid value, but linux doesn't like it... so when we can + * re-assign things, we do so, but if we can't, we keep it + * around and hope for the best... + */ + if (res->start == 0 && !(ppc_pci_flags & PPC_PCI_PROBE_ONLY)) { pr_debug("PCI:%s Resource %d %016llx-%016llx [%x] is unassigned\n", pci_name(dev), i, (unsigned long long)res->start, -- GitLab From fa19d63488bd108a308f575064779bb69123efbc Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 3 Mar 2008 17:27:46 +1100 Subject: [PATCH 809/923] [POWERPC] Fix sleep on some powerbooks The PMU backlight code would kick in during sleep/resume even on machines that use a different backlight method. This breaks sleep on some PowerBooks. This fixes it by adding a flag to indicate whether the backlight is controlled by the PMU, and testing that before trying to use the PMU to turn off the backlight during sleep. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- drivers/macintosh/via-pmu-backlight.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/macintosh/via-pmu-backlight.c b/drivers/macintosh/via-pmu-backlight.c index 741a2e3f4fc..a348bb0791d 100644 --- a/drivers/macintosh/via-pmu-backlight.c +++ b/drivers/macintosh/via-pmu-backlight.c @@ -17,7 +17,7 @@ static struct backlight_ops pmu_backlight_data; static DEFINE_SPINLOCK(pmu_backlight_lock); -static int sleeping; +static int sleeping, uses_pmu_bl; static u8 bl_curve[FB_BACKLIGHT_LEVELS]; static void pmu_backlight_init_curve(u8 off, u8 min, u8 max) @@ -128,7 +128,7 @@ void pmu_backlight_set_sleep(int sleep) spin_lock_irqsave(&pmu_backlight_lock, flags); sleeping = sleep; - if (pmac_backlight) { + if (pmac_backlight && uses_pmu_bl) { if (sleep) { struct adb_request req; @@ -166,6 +166,7 @@ void __init pmu_backlight_init() printk(KERN_ERR "PMU Backlight registration failed\n"); return; } + uses_pmu_bl = 1; bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1; pmu_backlight_init_curve(0x7F, 0x46, 0x0E); -- GitLab From 620a245978d007279bc5c7c64e15f5f63af9af98 Mon Sep 17 00:00:00 2001 From: Guido Guenther Date: Sun, 9 Mar 2008 06:20:17 +1100 Subject: [PATCH 810/923] [POWERPC] Fix build of modular drivers/macintosh/apm_emu.c Currently, if drivers/macintosh/apm_emu is a module and the config doesn't have CONFIG_SUSPEND we get: ERROR: "pmu_batteries" [drivers/macintosh/apm_emu.ko] undefined! ERROR: "pmu_battery_count" [drivers/macintosh/apm_emu.ko] undefined! ERROR: "pmu_power_flags" [drivers/macintosh/apm_emu.ko] undefined! on PPC32. The variables aren't wrapped in '#if defined(CONFIG_SUSPEND)' so we probably shouldn't wrap the exports either. This removes the CONFIG_SUSPEND part of the export, which fixes compilation on ppc32. Signed-off-by: Guido Guenther Signed-off-by: Paul Mackerras --- drivers/macintosh/via-pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index ebec663d5d3..d6365a9f063 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -2528,7 +2528,7 @@ EXPORT_SYMBOL(pmu_wait_complete); EXPORT_SYMBOL(pmu_suspend); EXPORT_SYMBOL(pmu_resume); EXPORT_SYMBOL(pmu_unlock); -#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) +#if defined(CONFIG_PPC32) EXPORT_SYMBOL(pmu_enable_irled); EXPORT_SYMBOL(pmu_battery_count); EXPORT_SYMBOL(pmu_batteries); -- GitLab From 07c941d00087581c9553661c2c4fb593da37f525 Mon Sep 17 00:00:00 2001 From: Tony Breeds Date: Wed, 12 Mar 2008 10:48:48 +1100 Subject: [PATCH 811/923] [POWERPC] Fix undefined pmu_sys_suspended compilation error pmu_sys_suspended is declared extern when: defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) but only defined when: defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) which is wrong. Let's fix that. Signed-off-by: Tony Breeds Signed-off-by: Paul Mackerras --- include/linux/pmu.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/pmu.h b/include/linux/pmu.h index 4c5f65392d3..b02b57c0fba 100644 --- a/include/linux/pmu.h +++ b/include/linux/pmu.h @@ -192,7 +192,7 @@ extern unsigned int pmu_power_flags; extern void pmu_backlight_init(void); /* some code needs to know if the PMU was suspended for hibernation */ -#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) +#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) extern int pmu_sys_suspended; #else /* if power management is not configured it can't be suspended */ -- GitLab From a99d9a6ebdf8328d5c61ca9f1038f4815e25720e Mon Sep 17 00:00:00 2001 From: Tony Breeds Date: Wed, 12 Mar 2008 10:48:48 +1100 Subject: [PATCH 812/923] [POWERPC] Fix drivers/macintosh/mediabay.c when !CONFIG_ADB_PMU When building drivers/macintosh/mediabay.c if CONFIG_ADB_PMU isn't defined we get: drivers/built-in.o: In function `media_bay_step': mediabay.c:(.text+0x92b84): undefined reference to `pmu_suspend' mediabay.c:(.text+0x92c08): undefined reference to `pmu_resume' Create empty place holders in that scenario. Signed-off-by: Tony Breeds Signed-off-by: Paul Mackerras --- include/linux/pmu.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/pmu.h b/include/linux/pmu.h index b02b57c0fba..cafe98d9694 100644 --- a/include/linux/pmu.h +++ b/include/linux/pmu.h @@ -147,8 +147,15 @@ extern void pmu_wait_complete(struct adb_request *req); /* For use before switching interrupts off for a long time; * warning: not stackable */ +#if defined(CONFIG_ADB_PMU) extern void pmu_suspend(void); extern void pmu_resume(void); +#else +static inline void pmu_suspend(void) +{} +static inline void pmu_resume(void) +{} +#endif extern void pmu_enable_irled(int on); -- GitLab From 98cddbfb3218925c35697562f7d9df692bf6a436 Mon Sep 17 00:00:00 2001 From: Tony Breeds Date: Wed, 12 Mar 2008 10:48:48 +1100 Subject: [PATCH 813/923] [POWERPC] Fix arch/powerpc/platforms/powermac/pic.c when !CONFIG_ADB_PMU When building arch/powerpc/platforms/powermac/pic.c when !CONFIG_ADB_PMU we get the following warnings: arch/powerpc/platforms/powermac/pic.c: In function 'pmacpic_find_viaint': arch/powerpc/platforms/powermac/pic.c:623: warning: label 'not_found' defined but not used This fixes it. Signed-off-by: Tony Breeds Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/powermac/pic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 40736400ef8..829b8b02527 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -618,9 +618,9 @@ static int pmacpic_find_viaint(void) if (np == NULL) goto not_found; viaint = irq_of_parse_and_map(np, 0);; -#endif /* CONFIG_ADB_PMU */ not_found: +#endif /* CONFIG_ADB_PMU */ return viaint; } -- GitLab From 25c0a7b83297f10186a7a1ee5c563f005dfabc44 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 12 Mar 2008 17:23:56 +1100 Subject: [PATCH 814/923] [POWERPC] Fix viodasd driver with scatterlist debug The iSeries viodasd drivers does some very strange things with scatterlists, one of these causing a BUG_ON to trigger when scatterlist debugging is enabled due to initializing the scatterlist with memset instead of sg_init_table(). This fixes it by using sg_init_table(). The rest of the stuff it does to that poor list is still pretty awful but it will work. I may look into fixing things in a nicer way some other time. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- drivers/block/viodasd.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c index 9e61fca4611..41ca721d252 100644 --- a/drivers/block/viodasd.c +++ b/drivers/block/viodasd.c @@ -528,8 +528,7 @@ static int block_event_to_scatterlist(const struct vioblocklpevent *bevent, numsg = VIOMAXBLOCKDMA; *total_len = 0; - memset(sg, 0, sizeof(sg[0]) * VIOMAXBLOCKDMA); - + sg_init_table(sg, VIOMAXBLOCKDMA); for (i = 0; (i < numsg) && (rw_data->dma_info[i].len > 0); ++i) { sg_dma_address(&sg[i]) = rw_data->dma_info[i].token; sg_dma_len(&sg[i]) = rw_data->dma_info[i].len; -- GitLab From 07dc42f632e335a03c0e780805dc9dc141f83e63 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Thu, 13 Mar 2008 07:24:31 +1100 Subject: [PATCH 815/923] [POWERPC] Export empty_zero_page Once again, this time with feeling.... - Ted >From c91cfaabc17f8a53807a2f31f067a732e34a1550 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 12 Mar 2008 11:50:39 -0400 Subject: Export empty_zero_page The empty_zero_page symbol is exported by most other architectures (s390, ia64, x86, um), and an upcoming ext4 patch needs it because ZERO_PAGE() references empty_zero_page, and we need it to zero out an unitialized extents in ext4 files. Signed-off-by: "Theodore Ts'o" Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/ppc_ksyms.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index 3e52122c507..9c98424277a 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -58,6 +58,7 @@ extern void program_check_exception(struct pt_regs *regs); extern void single_step_exception(struct pt_regs *regs); extern int sys_sigreturn(struct pt_regs *regs); +EXPORT_SYMBOL(empty_zero_page); EXPORT_SYMBOL(clear_pages); EXPORT_SYMBOL(copy_page); EXPORT_SYMBOL(ISA_DMA_THRESHOLD); -- GitLab From 31bf111944e31b64a7b692f9d660f71c5ff3d419 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 12 Mar 2008 18:03:24 +1100 Subject: [PATCH 816/923] [POWERPC] Fix large hash table allocation on Cell blades My recent hack to allocate the hash table under 1GB on cell was poorly tested, *cough*. It turns out on blades with large amounts of memory we fail to allocate the hash table at all. This is because RTAS has been instantiated just below 768MB, and 0-x MB are used by the kernel, leaving no areas that are both large enough and also naturally-aligned. For the cell IOMMU hack the page tables must be under 2GB, so use that as the limit instead. This has been tested on real hardware and boots happily. Signed-off-by: Michael Ellerman Signed-off-by: Paul Mackerras --- arch/powerpc/mm/hash_utils_64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 32f416175db..590f1f67c87 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -506,10 +506,10 @@ void __init htab_initialize(void) } else { /* Find storage for the HPT. Must be contiguous in * the absolute address space. On cell we want it to be - * in the first 1 Gig. + * in the first 2 Gig so we can use it for IOMMU hacks. */ if (machine_is(cell)) - limit = 0x40000000; + limit = 0x80000000; else limit = 0; -- GitLab From 07d31ee5597dadfd621840e2404b086fa94ef0c6 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Mon, 10 Mar 2008 22:29:37 +0100 Subject: [PATCH 817/923] acer-wmi: build depends on i8042 Signed-off-by: Jiri Kosina Acked-by: Randy Dunlap Signed-off-by: Carlos Corbacho Signed-off-by: Len Brown --- drivers/misc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 982e27b86d1..962817e49fb 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -108,6 +108,7 @@ config ACER_WMI depends on ACPI depends on LEDS_CLASS depends on BACKLIGHT_CLASS_DEVICE + depends on SERIO_I8042 select ACPI_WMI ---help--- This is a driver for newer Acer (and Wistron) laptops. It adds -- GitLab From 3152fb9f11cdd2fd8688c2c5cb805e5c09b53dd9 Mon Sep 17 00:00:00 2001 From: "Zhang, Rui" Date: Wed, 27 Feb 2008 08:37:50 +0800 Subject: [PATCH 818/923] thermal: fix generic thermal I/F for hwmon Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- Documentation/thermal/sysfs-api.txt | 22 ++-- drivers/thermal/Kconfig | 1 + drivers/thermal/thermal.c | 169 +++++++++++++++++++++++----- 3 files changed, 155 insertions(+), 37 deletions(-) diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt index ba9c2da5a8c..d9f28be7540 100644 --- a/Documentation/thermal/sysfs-api.txt +++ b/Documentation/thermal/sysfs-api.txt @@ -143,10 +143,10 @@ type Strings which represent the thermal zone type. This is given by thermal zone driver as part of registration. Eg: "ACPI thermal zone" indicates it's a ACPI thermal device RO - Optional + Required temp Current temperature as reported by thermal zone (sensor) - Unit: degree Celsius + Unit: millidegree Celsius RO Required @@ -163,7 +163,7 @@ mode One of the predefined values in [kernel, user] charge of the thermal management. trip_point_[0-*]_temp The temperature above which trip point will be fired - Unit: degree Celsius + Unit: millidegree Celsius RO Optional @@ -193,7 +193,7 @@ type String which represents the type of device eg. For memory controller device on intel_menlow platform: this should be "Memory controller" RO - Optional + Required max_state The maximum permissible cooling state of this cooling device. RO @@ -219,16 +219,16 @@ the sys I/F structure will be built like this: |thermal_zone1: |-----type: ACPI thermal zone - |-----temp: 37 + |-----temp: 37000 |-----mode: kernel - |-----trip_point_0_temp: 100 + |-----trip_point_0_temp: 100000 |-----trip_point_0_type: critical - |-----trip_point_1_temp: 80 + |-----trip_point_1_temp: 80000 |-----trip_point_1_type: passive - |-----trip_point_2_temp: 70 - |-----trip_point_2_type: active[0] - |-----trip_point_3_temp: 60 - |-----trip_point_3_type: active[1] + |-----trip_point_2_temp: 70000 + |-----trip_point_2_type: active0 + |-----trip_point_3_temp: 60000 + |-----trip_point_3_type: active1 |-----cdev0: --->/sys/class/thermal/cooling_device0 |-----cdev0_trip_point: 1 /* cdev0 can be used for passive */ |-----cdev1: --->/sys/class/thermal/cooling_device3 diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 69f19f22487..3ab313ed441 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -4,6 +4,7 @@ menuconfig THERMAL bool "Generic Thermal sysfs driver" + select HWMON default y help Generic Thermal Sysfs driver offers a generic mechanism for diff --git a/drivers/thermal/thermal.c b/drivers/thermal/thermal.c index 8b86e53ccf7..41bd4c805ac 100644 --- a/drivers/thermal/thermal.c +++ b/drivers/thermal/thermal.c @@ -30,8 +30,10 @@ #include #include #include +#include +#include -MODULE_AUTHOR("Zhang Rui") +MODULE_AUTHOR("Zhang Rui"); MODULE_DESCRIPTION("Generic thermal management sysfs support"); MODULE_LICENSE("GPL"); @@ -56,6 +58,9 @@ static LIST_HEAD(thermal_tz_list); static LIST_HEAD(thermal_cdev_list); static DEFINE_MUTEX(thermal_list_lock); +static struct device *thermal_hwmon; +#define MAX_THERMAL_ZONES 10 + static int get_idr(struct idr *idr, struct mutex *lock, int *id) { int err; @@ -87,7 +92,67 @@ static void release_idr(struct idr *idr, struct mutex *lock, int id) mutex_unlock(lock); } -/* sys I/F for thermal zone */ +/* hwmon sys I/F*/ +static ssize_t +name_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "thermal_sys_class\n"); +} + +static ssize_t +temp_input_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct thermal_zone_device *tz; + struct sensor_device_attribute *sensor_attr + = to_sensor_dev_attr(attr); + + list_for_each_entry(tz, &thermal_tz_list, node) + if (tz->id == sensor_attr->index) + return tz->ops->get_temp(tz, buf); + + return -ENODEV; +} + +static ssize_t +temp_crit_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct thermal_zone_device *tz; + struct sensor_device_attribute *sensor_attr + = to_sensor_dev_attr(attr); + + list_for_each_entry(tz, &thermal_tz_list, node) + if (tz->id == sensor_attr->index) + return tz->ops->get_trip_temp(tz, 0, buf); + + return -ENODEV; +} + +static DEVICE_ATTR(name, 0444, name_show, NULL); +static struct sensor_device_attribute sensor_attrs[] = { + SENSOR_ATTR(temp1_input, 0444, temp_input_show, NULL, 0), + SENSOR_ATTR(temp1_crit, 0444, temp_crit_show, NULL, 0), + SENSOR_ATTR(temp2_input, 0444, temp_input_show, NULL, 1), + SENSOR_ATTR(temp2_crit, 0444, temp_crit_show, NULL, 1), + SENSOR_ATTR(temp3_input, 0444, temp_input_show, NULL, 2), + SENSOR_ATTR(temp3_crit, 0444, temp_crit_show, NULL, 2), + SENSOR_ATTR(temp4_input, 0444, temp_input_show, NULL, 3), + SENSOR_ATTR(temp4_crit, 0444, temp_crit_show, NULL, 3), + SENSOR_ATTR(temp5_input, 0444, temp_input_show, NULL, 4), + SENSOR_ATTR(temp5_crit, 0444, temp_crit_show, NULL, 4), + SENSOR_ATTR(temp6_input, 0444, temp_input_show, NULL, 5), + SENSOR_ATTR(temp6_crit, 0444, temp_crit_show, NULL, 5), + SENSOR_ATTR(temp7_input, 0444, temp_input_show, NULL, 6), + SENSOR_ATTR(temp7_crit, 0444, temp_crit_show, NULL, 6), + SENSOR_ATTR(temp8_input, 0444, temp_input_show, NULL, 7), + SENSOR_ATTR(temp8_crit, 0444, temp_crit_show, NULL, 7), + SENSOR_ATTR(temp9_input, 0444, temp_input_show, NULL, 8), + SENSOR_ATTR(temp9_crit, 0444, temp_crit_show, NULL, 8), + SENSOR_ATTR(temp10_input, 0444, temp_input_show, NULL, 9), + SENSOR_ATTR(temp10_crit, 0444, temp_crit_show, NULL, 9), +}; + +/* thermal zone sys I/F */ #define to_thermal_zone(_dev) \ container_of(_dev, struct thermal_zone_device, device) @@ -214,7 +279,7 @@ do { \ device_remove_file(_dev, &trip_point_attrs[_index * 2 + 1]); \ } while (0) -/* sys I/F for cooling device */ +/* cooling device sys I/F */ #define to_cooling_device(_dev) \ container_of(_dev, struct thermal_cooling_device, device) @@ -447,6 +512,9 @@ struct thermal_cooling_device *thermal_cooling_device_register(char *type, struct thermal_zone_device *pos; int result; + if (!type) + return ERR_PTR(-EINVAL); + if (strlen(type) >= THERMAL_NAME_LENGTH) return ERR_PTR(-EINVAL); @@ -477,11 +545,9 @@ struct thermal_cooling_device *thermal_cooling_device_register(char *type, } /* sys I/F */ - if (type) { - result = device_create_file(&cdev->device, &dev_attr_cdev_type); - if (result) - goto unregister; - } + result = device_create_file(&cdev->device, &dev_attr_cdev_type); + if (result) + goto unregister; result = device_create_file(&cdev->device, &dev_attr_max_state); if (result) @@ -547,8 +613,8 @@ void thermal_cooling_device_unregister(struct tz->ops->unbind(tz, cdev); } mutex_unlock(&thermal_list_lock); - if (cdev->type[0]) - device_remove_file(&cdev->device, &dev_attr_cdev_type); + + device_remove_file(&cdev->device, &dev_attr_cdev_type); device_remove_file(&cdev->device, &dev_attr_max_state); device_remove_file(&cdev->device, &dev_attr_cur_state); @@ -580,6 +646,9 @@ struct thermal_zone_device *thermal_zone_device_register(char *type, int result; int count; + if (!type) + return ERR_PTR(-EINVAL); + if (strlen(type) >= THERMAL_NAME_LENGTH) return ERR_PTR(-EINVAL); @@ -601,6 +670,13 @@ struct thermal_zone_device *thermal_zone_device_register(char *type, kfree(tz); return ERR_PTR(result); } + if (tz->id >= MAX_THERMAL_ZONES) { + printk(KERN_ERR PREFIX + "Too many thermal zones\n"); + release_idr(&thermal_tz_idr, &thermal_idr_lock, tz->id); + kfree(tz); + return ERR_PTR(-EINVAL); + } strcpy(tz->type, type); tz->ops = ops; @@ -615,13 +691,28 @@ struct thermal_zone_device *thermal_zone_device_register(char *type, return ERR_PTR(result); } - /* sys I/F */ - if (type) { - result = device_create_file(&tz->device, &dev_attr_type); - if (result) - goto unregister; + /* hwmon sys I/F */ + result = device_create_file(thermal_hwmon, + &sensor_attrs[tz->id * 2].dev_attr); + if (result) + goto unregister; + + if (trips > 0) { + char buf[40]; + result = tz->ops->get_trip_type(tz, 0, buf); + if (result > 0 && !strcmp(buf, "critical\n")) { + result = device_create_file(thermal_hwmon, + &sensor_attrs[tz->id * 2 + 1].dev_attr); + if (result) + goto unregister; + } } + /* sys I/F */ + result = device_create_file(&tz->device, &dev_attr_type); + if (result) + goto unregister; + result = device_create_file(&tz->device, &dev_attr_temp); if (result) goto unregister; @@ -687,8 +778,17 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz) tz->ops->unbind(tz, cdev); mutex_unlock(&thermal_list_lock); - if (tz->type[0]) - device_remove_file(&tz->device, &dev_attr_type); + device_remove_file(thermal_hwmon, + &sensor_attrs[tz->id * 2].dev_attr); + if (tz->trips > 0) { + char buf[40]; + if (tz->ops->get_trip_type(tz, 0, buf) > 0) + if (!strcmp(buf, "critical\n")) + device_remove_file(thermal_hwmon, + &sensor_attrs[tz->id * 2 + 1].dev_attr); + } + + device_remove_file(&tz->device, &dev_attr_type); device_remove_file(&tz->device, &dev_attr_temp); if (tz->ops->get_mode) device_remove_file(&tz->device, &dev_attr_mode); @@ -705,6 +805,19 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz) EXPORT_SYMBOL(thermal_zone_device_unregister); +static void thermal_exit(void) +{ + if (thermal_hwmon) { + device_remove_file(thermal_hwmon, &dev_attr_name); + hwmon_device_unregister(thermal_hwmon); + } + class_unregister(&thermal_class); + idr_destroy(&thermal_tz_idr); + idr_destroy(&thermal_cdev_idr); + mutex_destroy(&thermal_idr_lock); + mutex_destroy(&thermal_list_lock); +} + static int __init thermal_init(void) { int result = 0; @@ -716,16 +829,20 @@ static int __init thermal_init(void) mutex_destroy(&thermal_idr_lock); mutex_destroy(&thermal_list_lock); } - return result; -} -static void __exit thermal_exit(void) -{ - class_unregister(&thermal_class); - idr_destroy(&thermal_tz_idr); - idr_destroy(&thermal_cdev_idr); - mutex_destroy(&thermal_idr_lock); - mutex_destroy(&thermal_list_lock); + thermal_hwmon = hwmon_device_register(NULL); + if (IS_ERR(thermal_hwmon)) { + result = PTR_ERR(thermal_hwmon); + thermal_hwmon = NULL; + printk(KERN_ERR PREFIX + "unable to register hwmon device\n"); + thermal_exit(); + return result; + } + + result = device_create_file(thermal_hwmon, &dev_attr_name); + + return result; } subsys_initcall(thermal_init); -- GitLab From 5e012760dfd5ec24c41b9eab9e654a88360bb026 Mon Sep 17 00:00:00 2001 From: "Zhang, Rui" Date: Thu, 28 Feb 2008 07:51:30 +0800 Subject: [PATCH 819/923] ACPI: thermal: show temperature in millidegree Celsius as now required by the generic thermal I/F Signed-off-by: Zhang Rui Acked-by: Jean Delvare Signed-off-by: Len Brown --- drivers/acpi/thermal.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 8d4b79b4f93..c4e00ac8ea8 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -879,6 +879,8 @@ static void acpi_thermal_check(void *data) } /* sys I/F for generic thermal sysfs support */ +#define KELVIN_TO_MILLICELSIUS(t) (t * 100 - 273200) + static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf) { struct acpi_thermal *tz = thermal->devdata; @@ -886,7 +888,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf) if (!tz) return -EINVAL; - return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(tz->temperature)); + return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(tz->temperature)); } static const char enabled[] = "kernel"; @@ -980,21 +982,21 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal, if (tz->trips.critical.flags.valid) { if (!trip) - return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS( + return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS( tz->trips.critical.temperature)); trip--; } if (tz->trips.hot.flags.valid) { if (!trip) - return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS( + return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS( tz->trips.hot.temperature)); trip--; } if (tz->trips.passive.flags.valid) { if (!trip) - return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS( + return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS( tz->trips.passive.temperature)); trip--; } @@ -1002,7 +1004,7 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal, for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE && tz->trips.active[i].flags.valid; i++) { if (!trip) - return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS( + return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS( tz->trips.active[i].temperature)); trip--; } -- GitLab From f1dd9c379cac7d5a76259e7dffcd5f8edc697d17 Mon Sep 17 00:00:00 2001 From: Zhang Yanmin Date: Wed, 12 Mar 2008 22:52:37 -0700 Subject: [PATCH 820/923] [NET]: Fix tbench regression in 2.6.25-rc1 Comparing with kernel 2.6.24, tbench result has regression with 2.6.25-rc1. 1) On 2 quad-core processor stoakley: 4%. 2) On 4 quad-core processor tigerton: more than 30%. bisect located below patch. b4ce92775c2e7ff9cf79cca4e0a19c8c5fd6287b is first bad commit commit b4ce92775c2e7ff9cf79cca4e0a19c8c5fd6287b Author: Herbert Xu Date: Tue Nov 13 21:33:32 2007 -0800 [IPV6]: Move nfheader_len into rt6_info The dst member nfheader_len is only used by IPv6. It's also currently creating a rather ugly alignment hole in struct dst. Therefore this patch moves it from there into struct rt6_info. Above patch changes the cache line alignment, especially member __refcnt. I did a testing by adding 2 unsigned long pading before lastuse, so the 3 members, lastuse/__refcnt/__use, are moved to next cache line. The performance is recovered. I created a patch to rearrange the members in struct dst_entry. With Eric and Valdis Kletnieks's suggestion, I made finer arrangement. 1) Move tclassid under ops in case CONFIG_NET_CLS_ROUTE=y. So sizeof(dst_entry)=200 no matter if CONFIG_NET_CLS_ROUTE=y/n. I tested many patches on my 16-core tigerton by moving tclassid to different place. It looks like tclassid could also have impact on performance. If moving tclassid before metrics, or just don't move tclassid, the performance isn't good. So I move it behind metrics. 2) Add comments before __refcnt. On 16-core tigerton: If CONFIG_NET_CLS_ROUTE=y, the result with below patch is about 18% better than the one without the patch; If CONFIG_NET_CLS_ROUTE=n, the result with below patch is about 30% better than the one without the patch. With 32bit 2.6.25-rc1 on 8-core stoakley, the new patch doesn't introduce regression. Thank Eric, Valdis, and David! Signed-off-by: Zhang Yanmin Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/dst.h | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/include/net/dst.h b/include/net/dst.h index e3ac7d0fc4e..ae13370e848 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -52,15 +52,10 @@ struct dst_entry unsigned short header_len; /* more space at head required */ unsigned short trailer_len; /* space to reserve at tail */ - u32 metrics[RTAX_MAX]; - struct dst_entry *path; - - unsigned long rate_last; /* rate limiting for ICMP */ unsigned int rate_tokens; + unsigned long rate_last; /* rate limiting for ICMP */ -#ifdef CONFIG_NET_CLS_ROUTE - __u32 tclassid; -#endif + struct dst_entry *path; struct neighbour *neighbour; struct hh_cache *hh; @@ -70,10 +65,20 @@ struct dst_entry int (*output)(struct sk_buff*); struct dst_ops *ops; - - unsigned long lastuse; + + u32 metrics[RTAX_MAX]; + +#ifdef CONFIG_NET_CLS_ROUTE + __u32 tclassid; +#endif + + /* + * __refcnt wants to be on a different cache line from + * input/output/ops or performance tanks badly + */ atomic_t __refcnt; /* client references */ int __use; + unsigned long lastuse; union { struct dst_entry *next; struct rtable *rt_next; -- GitLab From cc74d96f47b0d916840f92092595e3be9731e047 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Mar 2008 21:48:03 -0700 Subject: [PATCH 821/923] PCI: fix issue with busses registering multiple times in sysfs PCI busses can be registered multiple times, so we need to detect if we have registered our bus structure in sysfs already. If so, don't do it again. Thanks to Guennadi Liakhovetski for reporting the problem, and to Linus for poking me to get me to believe that it was a real problem. Cc: Linus Torvalds Cc: Guennadi Liakhovetski Signed-off-by: Greg Kroah-Hartman --- drivers/pci/bus.c | 6 +++++- include/linux/pci.h | 1 + 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 6a9403d79e0..d708358326e 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -143,14 +143,18 @@ void pci_bus_add_devices(struct pci_bus *bus) /* register the bus with sysfs as the parent is now * properly registered. */ child_bus = dev->subordinate; + if (child_bus->is_added) + continue; child_bus->dev.parent = child_bus->bridge; retval = device_register(&child_bus->dev); if (retval) dev_err(&dev->dev, "Error registering pci_bus," " continuing...\n"); - else + else { + child_bus->is_added = 1; retval = device_create_file(&child_bus->dev, &dev_attr_cpuaffinity); + } if (retval) dev_err(&dev->dev, "Error creating cpuaffinity" " file, continuing...\n"); diff --git a/include/linux/pci.h b/include/linux/pci.h index 38eff194775..9010f545876 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -278,6 +278,7 @@ struct pci_bus { struct device dev; struct bin_attribute *legacy_io; /* legacy I/O for this bus */ struct bin_attribute *legacy_mem; /* legacy mem */ + unsigned int is_added:1; }; #define pci_bus_b(n) list_entry(n, struct pci_bus, node) -- GitLab From 56822843ff99c88c778a614851328fcbb1503d10 Mon Sep 17 00:00:00 2001 From: Zhang Wei Date: Thu, 13 Mar 2008 10:45:27 -0700 Subject: [PATCH 822/923] fsldma: Fix fsldma.c warning messages when it's compiled under PPC64. There are warning messages reported by Stephen Rothwell with ARCH=powerpc allmodconfig build: drivers/dma/fsldma.c: In function 'fsl_dma_prep_memcpy': drivers/dma/fsldma.c:439: warning: comparison of distinct pointer types lacks a cast drivers/dma/fsldma.c: In function 'fsl_chan_xfer_ld_queue': drivers/dma/fsldma.c:584: warning: format '%016llx' expects type 'long long unsigned int', but argument 4 has type 'dma_addr_t' drivers/dma/fsldma.c: In function 'fsl_dma_chan_do_interrupt': drivers/dma/fsldma.c:668: warning: format '%x' expects type 'unsigned int', but argument 5 has type 'dma_addr_t' drivers/dma/fsldma.c:684: warning: format '%016llx' expects type 'long long unsigned int', but argument 4 has type 'dma_addr_t' drivers/dma/fsldma.c:684: warning: format '%016llx' expects type 'long long unsigned int', but argument 5 has type 'dma_addr_t' drivers/dma/fsldma.c:701: warning: format '%02x' expects type 'unsigned int', but argument 4 has type 'dma_addr_t' drivers/dma/fsldma.c: In function 'fsl_dma_self_test': drivers/dma/fsldma.c:840: warning: format '%d' expects type 'int', but argument 5 has type 'size_t' drivers/dma/fsldma.c: In function 'of_fsl_dma_probe': drivers/dma/fsldma.c:1010: warning: format '%08x' expects type 'unsigned int', but argument 5 has type 'resource_size_t' This patch fixed the above warning messages. Signed-off-by: Zhang Wei Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index cc9a68158d9..5dfedf32657 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -57,12 +57,12 @@ static void dma_init(struct fsl_dma_chan *fsl_chan) } -static void set_sr(struct fsl_dma_chan *fsl_chan, dma_addr_t val) +static void set_sr(struct fsl_dma_chan *fsl_chan, u32 val) { DMA_OUT(fsl_chan, &fsl_chan->reg_base->sr, val, 32); } -static dma_addr_t get_sr(struct fsl_dma_chan *fsl_chan) +static u32 get_sr(struct fsl_dma_chan *fsl_chan) { return DMA_IN(fsl_chan, &fsl_chan->reg_base->sr, 32); } @@ -436,7 +436,7 @@ static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy( dev_dbg(fsl_chan->dev, "new link desc alloc %p\n", new); #endif - copy = min(len, FSL_DMA_BCR_MAX_CNT); + copy = min(len, (size_t)FSL_DMA_BCR_MAX_CNT); set_desc_cnt(fsl_chan, &new->hw, copy); set_desc_src(fsl_chan, &new->hw, dma_src); @@ -581,8 +581,8 @@ static void fsl_chan_xfer_ld_queue(struct fsl_dma_chan *fsl_chan) if (ld_node != &fsl_chan->ld_queue) { /* Get the ld start address from ld_queue */ next_dest_addr = to_fsl_desc(ld_node)->async_tx.phys; - dev_dbg(fsl_chan->dev, "xfer LDs staring from 0x%016llx\n", - (u64)next_dest_addr); + dev_dbg(fsl_chan->dev, "xfer LDs staring from %p\n", + (void *)next_dest_addr); set_cdar(fsl_chan, next_dest_addr); dma_start(fsl_chan); } else { @@ -662,7 +662,7 @@ static enum dma_status fsl_dma_is_complete(struct dma_chan *chan, static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data) { struct fsl_dma_chan *fsl_chan = (struct fsl_dma_chan *)data; - dma_addr_t stat; + u32 stat; stat = get_sr(fsl_chan); dev_dbg(fsl_chan->dev, "event: channel %d, stat = 0x%x\n", @@ -681,9 +681,8 @@ static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data) */ if (stat & FSL_DMA_SR_EOSI) { dev_dbg(fsl_chan->dev, "event: End-of-segments INT\n"); - dev_dbg(fsl_chan->dev, "event: clndar 0x%016llx, " - "nlndar 0x%016llx\n", (u64)get_cdar(fsl_chan), - (u64)get_ndar(fsl_chan)); + dev_dbg(fsl_chan->dev, "event: clndar %p, nlndar %p\n", + (void *)get_cdar(fsl_chan), (void *)get_ndar(fsl_chan)); stat &= ~FSL_DMA_SR_EOSI; } @@ -726,12 +725,15 @@ static void dma_do_tasklet(unsigned long data) fsl_chan_ld_cleanup(fsl_chan); } +#ifdef FSL_DMA_CALLBACKTEST static void fsl_dma_callback_test(struct fsl_dma_chan *fsl_chan) { if (fsl_chan) dev_info(fsl_chan->dev, "selftest: callback is ok!\n"); } +#endif +#ifdef CONFIG_FSL_DMA_SELFTEST static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan) { struct dma_chan *chan; @@ -837,9 +839,9 @@ static int fsl_dma_self_test(struct fsl_dma_chan *fsl_chan) if (err) { for (i = 0; (*(src + i) == *(dest + i)) && (i < test_size); i++); - dev_err(fsl_chan->dev, "selftest: Test failed, data %d/%d is " + dev_err(fsl_chan->dev, "selftest: Test failed, data %d/%ld is " "error! src 0x%x, dest 0x%x\n", - i, test_size, *(src + i), *(dest + i)); + i, (long)test_size, *(src + i), *(dest + i)); } free_resources: @@ -848,6 +850,7 @@ out: kfree(src); return err; } +#endif static int __devinit of_fsl_dma_chan_probe(struct of_device *dev, const struct of_device_id *match) @@ -1008,8 +1011,8 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev, } dev_info(&dev->dev, "Probe the Freescale DMA driver for %s " - "controller at 0x%08x...\n", - match->compatible, fdev->reg.start); + "controller at %p...\n", + match->compatible, (void *)fdev->reg.start); fdev->reg_base = ioremap(fdev->reg.start, fdev->reg.end - fdev->reg.start + 1); -- GitLab From 9b941c6660bae673e27c207f1d20d98ef8ecd450 Mon Sep 17 00:00:00 2001 From: Zhang Wei Date: Thu, 13 Mar 2008 17:45:28 -0700 Subject: [PATCH 823/923] dmaengine: Fix a bug about BUG_ON() on DMA engine capability DMA_INTERRUPT. The device->device_prep_dma_interrupt function is used by DMA_INTERRUPT capability, not DMA_ZERO_SUM. Signed-off-by: Zhang Wei Acked-by: Maciej Sosnowski Signed-off-by: Dan Williams --- drivers/dma/dmaengine.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 29965231b91..8db0e7f9d3f 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -357,7 +357,7 @@ int dma_async_device_register(struct dma_device *device) !device->device_prep_dma_zero_sum); BUG_ON(dma_has_cap(DMA_MEMSET, device->cap_mask) && !device->device_prep_dma_memset); - BUG_ON(dma_has_cap(DMA_ZERO_SUM, device->cap_mask) && + BUG_ON(dma_has_cap(DMA_INTERRUPT, device->cap_mask) && !device->device_prep_dma_interrupt); BUG_ON(!device->device_alloc_chan_resources); -- GitLab From 2187c269ad29510f1d65ec684133d1d3426d0eed Mon Sep 17 00:00:00 2001 From: Zhang Wei Date: Thu, 13 Mar 2008 17:45:28 -0700 Subject: [PATCH 824/923] fsldma: Add device_prep_dma_interrupt support to fsldma.c This is a bug that I assigned DMA_INTERRUPT capability to fsldma but missing device_prep_dma_interrupt function. For a bug in dmaengine.c the driver passed BUG_ON() checking. The patch fixes it. Signed-off-by: Zhang Wei Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 5dfedf32657..cbd5b968452 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -406,6 +406,32 @@ static void fsl_dma_free_chan_resources(struct dma_chan *chan) dma_pool_destroy(fsl_chan->desc_pool); } +static struct dma_async_tx_descriptor * +fsl_dma_prep_interrupt(struct dma_chan *chan) +{ + struct fsl_dma_chan *fsl_chan; + struct fsl_desc_sw *new; + + if (!chan) + return NULL; + + fsl_chan = to_fsl_chan(chan); + + new = fsl_dma_alloc_descriptor(fsl_chan); + if (!new) { + dev_err(fsl_chan->dev, "No free memory for link descriptor\n"); + return NULL; + } + + new->async_tx.cookie = -EBUSY; + new->async_tx.ack = 0; + + /* Set End-of-link to the last link descriptor of new list*/ + set_ld_eol(fsl_chan, new); + + return &new->async_tx; +} + static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy( struct dma_chan *chan, dma_addr_t dma_dest, dma_addr_t dma_src, size_t len, unsigned long flags) @@ -1020,6 +1046,7 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev, dma_cap_set(DMA_INTERRUPT, fdev->common.cap_mask); fdev->common.device_alloc_chan_resources = fsl_dma_alloc_chan_resources; fdev->common.device_free_chan_resources = fsl_dma_free_chan_resources; + fdev->common.device_prep_dma_interrupt = fsl_dma_prep_interrupt; fdev->common.device_prep_dma_memcpy = fsl_dma_prep_memcpy; fdev->common.device_is_tx_complete = fsl_dma_is_complete; fdev->common.device_issue_pending = fsl_dma_memcpy_issue_pending; -- GitLab From 9c98718e7371fa781043d5a2e70cecebec048091 Mon Sep 17 00:00:00 2001 From: Zhang Wei Date: Thu, 13 Mar 2008 17:45:28 -0700 Subject: [PATCH 825/923] fsldma: Add a completed cookie updated action in DMA finish interrupt. The patch 'fsldma: do not cleanup descriptors in hardirq context' (commit 222ccf9ab838a1ca7163969fabd2cddc10403fb5) removed descriptors cleanup function to tasklet but the completed cookie do not updated. Thus, the DMA controller will get lots of duplicated transfer interrupts. Just make a completed cookie update in interrupt handler. And keep other cleanup jobs in tasklet function. Tested-by: Sebastian Siewior Signed-off-by: Zhang Wei Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index cbd5b968452..ad2f938597e 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -539,7 +539,6 @@ static void fsl_chan_ld_cleanup(struct fsl_dma_chan *fsl_chan) spin_lock_irqsave(&fsl_chan->desc_lock, flags); - fsl_dma_update_completed_cookie(fsl_chan); dev_dbg(fsl_chan->dev, "chan completed_cookie = %d\n", fsl_chan->completed_cookie); list_for_each_entry_safe(desc, _desc, &fsl_chan->ld_queue, node) { @@ -710,6 +709,7 @@ static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data) dev_dbg(fsl_chan->dev, "event: clndar %p, nlndar %p\n", (void *)get_cdar(fsl_chan), (void *)get_ndar(fsl_chan)); stat &= ~FSL_DMA_SR_EOSI; + fsl_dma_update_completed_cookie(fsl_chan); } /* If it current transfer is the end-of-transfer, -- GitLab From 3d9b525b69bc3302d8355e5f5cf081a856c211e0 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Thu, 13 Mar 2008 17:45:28 -0700 Subject: [PATCH 826/923] iop-adma.c: replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: Dan Williams --- drivers/dma/iop-adma.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c index 3986d54492b..f82b0906d46 100644 --- a/drivers/dma/iop-adma.c +++ b/drivers/dma/iop-adma.c @@ -140,7 +140,7 @@ static void __iop_adma_slot_cleanup(struct iop_adma_chan *iop_chan) int busy = iop_chan_is_busy(iop_chan); int seen_current = 0, slot_cnt = 0, slots_per_op = 0; - dev_dbg(iop_chan->device->common.dev, "%s\n", __FUNCTION__); + dev_dbg(iop_chan->device->common.dev, "%s\n", __func__); /* free completed slots from the chain starting with * the oldest descriptor */ @@ -438,7 +438,7 @@ iop_adma_tx_submit(struct dma_async_tx_descriptor *tx) spin_unlock_bh(&iop_chan->lock); dev_dbg(iop_chan->device->common.dev, "%s cookie: %d slot: %d\n", - __FUNCTION__, sw_desc->async_tx.cookie, sw_desc->idx); + __func__, sw_desc->async_tx.cookie, sw_desc->idx); return cookie; } @@ -520,7 +520,7 @@ iop_adma_prep_dma_interrupt(struct dma_chan *chan) struct iop_adma_desc_slot *sw_desc, *grp_start; int slot_cnt, slots_per_op; - dev_dbg(iop_chan->device->common.dev, "%s\n", __FUNCTION__); + dev_dbg(iop_chan->device->common.dev, "%s\n", __func__); spin_lock_bh(&iop_chan->lock); slot_cnt = iop_chan_interrupt_slot_count(&slots_per_op, iop_chan); @@ -548,7 +548,7 @@ iop_adma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dma_dest, BUG_ON(unlikely(len > IOP_ADMA_MAX_BYTE_COUNT)); dev_dbg(iop_chan->device->common.dev, "%s len: %u\n", - __FUNCTION__, len); + __func__, len); spin_lock_bh(&iop_chan->lock); slot_cnt = iop_chan_memcpy_slot_count(len, &slots_per_op); @@ -580,7 +580,7 @@ iop_adma_prep_dma_memset(struct dma_chan *chan, dma_addr_t dma_dest, BUG_ON(unlikely(len > IOP_ADMA_MAX_BYTE_COUNT)); dev_dbg(iop_chan->device->common.dev, "%s len: %u\n", - __FUNCTION__, len); + __func__, len); spin_lock_bh(&iop_chan->lock); slot_cnt = iop_chan_memset_slot_count(len, &slots_per_op); @@ -614,7 +614,7 @@ iop_adma_prep_dma_xor(struct dma_chan *chan, dma_addr_t dma_dest, dev_dbg(iop_chan->device->common.dev, "%s src_cnt: %d len: %u flags: %lx\n", - __FUNCTION__, src_cnt, len, flags); + __func__, src_cnt, len, flags); spin_lock_bh(&iop_chan->lock); slot_cnt = iop_chan_xor_slot_count(len, src_cnt, &slots_per_op); @@ -648,7 +648,7 @@ iop_adma_prep_dma_zero_sum(struct dma_chan *chan, dma_addr_t *dma_src, return NULL; dev_dbg(iop_chan->device->common.dev, "%s src_cnt: %d len: %u\n", - __FUNCTION__, src_cnt, len); + __func__, src_cnt, len); spin_lock_bh(&iop_chan->lock); slot_cnt = iop_chan_zero_sum_slot_count(len, src_cnt, &slots_per_op); @@ -659,7 +659,7 @@ iop_adma_prep_dma_zero_sum(struct dma_chan *chan, dma_addr_t *dma_src, iop_desc_set_zero_sum_byte_count(grp_start, len); grp_start->xor_check_result = result; pr_debug("\t%s: grp_start->xor_check_result: %p\n", - __FUNCTION__, grp_start->xor_check_result); + __func__, grp_start->xor_check_result); sw_desc->unmap_src_cnt = src_cnt; sw_desc->unmap_len = len; while (src_cnt--) @@ -700,7 +700,7 @@ static void iop_adma_free_chan_resources(struct dma_chan *chan) iop_chan->last_used = NULL; dev_dbg(iop_chan->device->common.dev, "%s slots_allocated %d\n", - __FUNCTION__, iop_chan->slots_allocated); + __func__, iop_chan->slots_allocated); spin_unlock_bh(&iop_chan->lock); /* one is ok since we left it on there on purpose */ @@ -753,7 +753,7 @@ static irqreturn_t iop_adma_eot_handler(int irq, void *data) { struct iop_adma_chan *chan = data; - dev_dbg(chan->device->common.dev, "%s\n", __FUNCTION__); + dev_dbg(chan->device->common.dev, "%s\n", __func__); tasklet_schedule(&chan->irq_tasklet); @@ -766,7 +766,7 @@ static irqreturn_t iop_adma_eoc_handler(int irq, void *data) { struct iop_adma_chan *chan = data; - dev_dbg(chan->device->common.dev, "%s\n", __FUNCTION__); + dev_dbg(chan->device->common.dev, "%s\n", __func__); tasklet_schedule(&chan->irq_tasklet); @@ -823,7 +823,7 @@ static int __devinit iop_adma_memcpy_self_test(struct iop_adma_device *device) int err = 0; struct iop_adma_chan *iop_chan; - dev_dbg(device->common.dev, "%s\n", __FUNCTION__); + dev_dbg(device->common.dev, "%s\n", __func__); src = kzalloc(sizeof(u8) * IOP_ADMA_TEST_SIZE, GFP_KERNEL); if (!src) @@ -906,7 +906,7 @@ iop_adma_xor_zero_sum_self_test(struct iop_adma_device *device) int err = 0; struct iop_adma_chan *iop_chan; - dev_dbg(device->common.dev, "%s\n", __FUNCTION__); + dev_dbg(device->common.dev, "%s\n", __func__); for (src_idx = 0; src_idx < IOP_ADMA_NUM_SRC_TEST; src_idx++) { xor_srcs[src_idx] = alloc_page(GFP_KERNEL); @@ -1159,7 +1159,7 @@ static int __devinit iop_adma_probe(struct platform_device *pdev) } dev_dbg(&pdev->dev, "%s: allocted descriptor pool virt %p phys %p\n", - __FUNCTION__, adev->dma_desc_pool_virt, + __func__, adev->dma_desc_pool_virt, (void *) adev->dma_desc_pool); adev->id = plat_data->hw_id; @@ -1289,7 +1289,7 @@ static void iop_chan_start_null_memcpy(struct iop_adma_chan *iop_chan) dma_cookie_t cookie; int slot_cnt, slots_per_op; - dev_dbg(iop_chan->device->common.dev, "%s\n", __FUNCTION__); + dev_dbg(iop_chan->device->common.dev, "%s\n", __func__); spin_lock_bh(&iop_chan->lock); slot_cnt = iop_chan_memcpy_slot_count(0, &slots_per_op); @@ -1346,7 +1346,7 @@ static void iop_chan_start_null_xor(struct iop_adma_chan *iop_chan) dma_cookie_t cookie; int slot_cnt, slots_per_op; - dev_dbg(iop_chan->device->common.dev, "%s\n", __FUNCTION__); + dev_dbg(iop_chan->device->common.dev, "%s\n", __func__); spin_lock_bh(&iop_chan->lock); slot_cnt = iop_chan_xor_slot_count(0, 2, &slots_per_op); -- GitLab From 3280ab3e8815d60cea483d49b21261972e2785d6 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 13 Mar 2008 17:45:28 -0700 Subject: [PATCH 827/923] async_tx: checkpatch says s/__FUNCTION__/__func__/g Signed-off-by: Dan Williams --- crypto/async_tx/async_memcpy.c | 6 +++--- crypto/async_tx/async_memset.c | 6 +++--- crypto/async_tx/async_tx.c | 6 +++--- crypto/async_tx/async_xor.c | 12 ++++++------ 4 files changed, 15 insertions(+), 15 deletions(-) diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c index 0f6282207b3..84caa4efc0d 100644 --- a/crypto/async_tx/async_memcpy.c +++ b/crypto/async_tx/async_memcpy.c @@ -66,11 +66,11 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, } if (tx) { - pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len); + pr_debug("%s: (async) len: %zu\n", __func__, len); async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param); } else { void *dest_buf, *src_buf; - pr_debug("%s: (sync) len: %zu\n", __FUNCTION__, len); + pr_debug("%s: (sync) len: %zu\n", __func__, len); /* wait for any prerequisite operations */ if (depend_tx) { @@ -80,7 +80,7 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, BUG_ON(depend_tx->ack); if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR) panic("%s: DMA_ERROR waiting for depend_tx\n", - __FUNCTION__); + __func__); } dest_buf = kmap_atomic(dest, KM_USER0) + dest_offset; diff --git a/crypto/async_tx/async_memset.c b/crypto/async_tx/async_memset.c index 09c0e83664b..f5ff3906b03 100644 --- a/crypto/async_tx/async_memset.c +++ b/crypto/async_tx/async_memset.c @@ -63,11 +63,11 @@ async_memset(struct page *dest, int val, unsigned int offset, } if (tx) { - pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len); + pr_debug("%s: (async) len: %zu\n", __func__, len); async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param); } else { /* run the memset synchronously */ void *dest_buf; - pr_debug("%s: (sync) len: %zu\n", __FUNCTION__, len); + pr_debug("%s: (sync) len: %zu\n", __func__, len); dest_buf = (void *) (((char *) page_address(dest)) + offset); @@ -79,7 +79,7 @@ async_memset(struct page *dest, int val, unsigned int offset, BUG_ON(depend_tx->ack); if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR) panic("%s: DMA_ERROR waiting for depend_tx\n", - __FUNCTION__); + __func__); } memset(dest_buf, val, len); diff --git a/crypto/async_tx/async_tx.c b/crypto/async_tx/async_tx.c index 562882189de..2be3bae8993 100644 --- a/crypto/async_tx/async_tx.c +++ b/crypto/async_tx/async_tx.c @@ -472,11 +472,11 @@ async_trigger_callback(enum async_tx_flags flags, tx = NULL; if (tx) { - pr_debug("%s: (async)\n", __FUNCTION__); + pr_debug("%s: (async)\n", __func__); async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param); } else { - pr_debug("%s: (sync)\n", __FUNCTION__); + pr_debug("%s: (sync)\n", __func__); /* wait for any prerequisite operations */ if (depend_tx) { @@ -486,7 +486,7 @@ async_trigger_callback(enum async_tx_flags flags, BUG_ON(depend_tx->ack); if (dma_wait_for_async_tx(depend_tx) == DMA_ERROR) panic("%s: DMA_ERROR waiting for depend_tx\n", - __FUNCTION__); + __func__); } async_tx_sync_epilog(flags, depend_tx, cb_fn, cb_param); diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c index 2259a4ff15c..7a9db353f19 100644 --- a/crypto/async_tx/async_xor.c +++ b/crypto/async_tx/async_xor.c @@ -47,7 +47,7 @@ do_async_xor(struct dma_device *device, int i; unsigned long dma_prep_flags = cb_fn ? DMA_PREP_INTERRUPT : 0; - pr_debug("%s: len: %zu\n", __FUNCTION__, len); + pr_debug("%s: len: %zu\n", __func__, len); dma_dest = dma_map_page(device->dev, dest, offset, len, DMA_FROM_DEVICE); @@ -86,7 +86,7 @@ do_sync_xor(struct page *dest, struct page **src_list, unsigned int offset, void *_dest; int i; - pr_debug("%s: len: %zu\n", __FUNCTION__, len); + pr_debug("%s: len: %zu\n", __func__, len); /* reuse the 'src_list' array to convert to buffer pointers */ for (i = 0; i < src_cnt; i++) @@ -196,7 +196,7 @@ async_xor(struct page *dest, struct page **src_list, unsigned int offset, DMA_ERROR) panic("%s: DMA_ERROR waiting for " "depend_tx\n", - __FUNCTION__); + __func__); } do_sync_xor(dest, &src_list[src_off], offset, @@ -276,7 +276,7 @@ async_xor_zero_sum(struct page *dest, struct page **src_list, unsigned long dma_prep_flags = cb_fn ? DMA_PREP_INTERRUPT : 0; int i; - pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len); + pr_debug("%s: (async) len: %zu\n", __func__, len); for (i = 0; i < src_cnt; i++) dma_src[i] = dma_map_page(device->dev, src_list[i], @@ -299,7 +299,7 @@ async_xor_zero_sum(struct page *dest, struct page **src_list, } else { unsigned long xor_flags = flags; - pr_debug("%s: (sync) len: %zu\n", __FUNCTION__, len); + pr_debug("%s: (sync) len: %zu\n", __func__, len); xor_flags |= ASYNC_TX_XOR_DROP_DST; xor_flags &= ~ASYNC_TX_ACK; @@ -310,7 +310,7 @@ async_xor_zero_sum(struct page *dest, struct page **src_list, if (tx) { if (dma_wait_for_async_tx(tx) == DMA_ERROR) panic("%s: DMA_ERROR waiting for tx\n", - __FUNCTION__); + __func__); async_tx_ack(tx); } -- GitLab From 43557e15c22701f0b94e5f14a874fe02e814574e Mon Sep 17 00:00:00 2001 From: Jan Slupski Date: Mon, 10 Mar 2008 22:41:18 -0700 Subject: [PATCH 828/923] prism54: support for 124a:4025 - another version of IOGear GWU513 802.11g Add support to p54usb driver for apparently another version of IOGear GWU513 802.11g USB network card that uses GW3887IK chipset and is recognized as "124a:4025 AirVast" by lsusb. Cc: Michael Wu Signed-off-by: Andrew Morton Signed-off-by: John W. Linville --- drivers/net/wireless/p54usb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/p54usb.c b/drivers/net/wireless/p54usb.c index e7d4aee8799..98ddbb3b327 100644 --- a/drivers/net/wireless/p54usb.c +++ b/drivers/net/wireless/p54usb.c @@ -63,6 +63,7 @@ static struct usb_device_id p54u_table[] __devinitdata = { {USB_DEVICE(0x0cde, 0x0008)}, /* Sagem XG703A */ {USB_DEVICE(0x0d8e, 0x3762)}, /* DLink DWL-G120 Cohiba */ {USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */ + {USB_DEVICE(0x124a, 0x4025)}, /* IOGear GWU513 (GW3887IK chip) */ {USB_DEVICE(0x13b1, 0x000a)}, /* Linksys WUSB54G ver 2 */ {USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */ {USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */ -- GitLab From aad4c7d3a641315519add159a80f73cce554e7cd Mon Sep 17 00:00:00 2001 From: Masakazu Mokuno Date: Tue, 11 Mar 2008 13:15:44 +0900 Subject: [PATCH 829/923] PS3: gelic: ignore scan info from zero SSID beacons Some implementations of the hidden SSID APs emit beacons which have the zero length SSID information element instead of SSID padded by null (\0) characters. If the firmware of the PS3 wireless hardware meets these beacons, it abandons parsing IEs. Thus guest OSes get the invalid scan information for the AP. To work around this, ignore these scan informations from the list. Signed-off-by: Masakazu Mokuno Signed-off-by: John W. Linville --- drivers/net/ps3_gelic_wireless.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) diff --git a/drivers/net/ps3_gelic_wireless.c b/drivers/net/ps3_gelic_wireless.c index daf5abab953..f28b05f0bd9 100644 --- a/drivers/net/ps3_gelic_wireless.c +++ b/drivers/net/ps3_gelic_wireless.c @@ -1644,13 +1644,24 @@ static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl) } /* put them in the newtork_list */ - scan_info = wl->buf; - scan_info_size = 0; - i = 0; - while (scan_info_size < data_len) { + for (i = 0, scan_info_size = 0, scan_info = wl->buf; + scan_info_size < data_len; + i++, scan_info_size += be16_to_cpu(scan_info->size), + scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) { pr_debug("%s:size=%d bssid=%s scan_info=%p\n", __func__, be16_to_cpu(scan_info->size), print_mac(mac, &scan_info->bssid[2]), scan_info); + + /* + * The wireless firmware may return invalid channel 0 and/or + * invalid rate if the AP emits zero length SSID ie. As this + * scan information is useless, ignore it + */ + if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) { + pr_debug("%s: invalid scan info\n", __func__); + continue; + } + found = 0; oldest = NULL; list_for_each_entry(target, &wl->network_list, list) { @@ -1687,10 +1698,6 @@ static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl) GFP_KERNEL); if (!target->hwinfo) { pr_info("%s: kzalloc failed\n", __func__); - i++; - scan_info_size += be16_to_cpu(scan_info->size); - scan_info = (void *)scan_info + - be16_to_cpu(scan_info->size); continue; } /* copy hw scan info */ @@ -1709,10 +1716,6 @@ static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl) if (scan_info->ext_rate[r]) target->rate_ext_len++; list_move_tail(&target->list, &wl->network_list); - /* bump pointer */ - i++; - scan_info_size += be16_to_cpu(scan_info->size); - scan_info = (void *)scan_info + be16_to_cpu(scan_info->size); } memset(&data, 0, sizeof(data)); wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data, -- GitLab From c1e889be18aff97e20853231531b79d79a984369 Mon Sep 17 00:00:00 2001 From: Masakazu Mokuno Date: Wed, 12 Mar 2008 16:41:11 +0900 Subject: [PATCH 830/923] PS3: gelic: change the prefix of the net interface for wireless The gelic driver uses two net interfaces, one for ethernet and the other for wireless. They share same MAC address and use 'eth' prefix for the name. As udev uses the MAC address to check uniqueness, this is somewhat problematic. So change the prefix of the network interface name for the wireless so that udev can have an easy way to distinguish interfaces. Signed-off-by: Masakazu Mokuno Signed-off-by: John W. Linville --- drivers/net/ps3_gelic_wireless.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ps3_gelic_wireless.c b/drivers/net/ps3_gelic_wireless.c index f28b05f0bd9..ddbc6e475e2 100644 --- a/drivers/net/ps3_gelic_wireless.c +++ b/drivers/net/ps3_gelic_wireless.c @@ -2392,6 +2392,8 @@ static struct net_device *gelic_wl_alloc(struct gelic_card *card) if (!netdev) return NULL; + strcpy(netdev->name, "wlan%d"); + port = netdev_priv(netdev); port->netdev = netdev; port->card = card; -- GitLab From 5abdc49d6e521126ed4c15e913a5c30f6dd95e6b Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 12 Mar 2008 17:51:04 +0100 Subject: [PATCH 831/923] b43: phy.c fix typo in register write Commit 61bca6eb85c863603d6054530e2f65c3b9aba85b b43: rewrite A PHY initialization has a typo, the result of the register read should be masked, not the register offset. Signed-off-by: Harvey Harrison Signed-off-by: Michael Buesch Signed-off-by: John W. Linville --- drivers/net/wireless/b43/phy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/b43/phy.c b/drivers/net/wireless/b43/phy.c index 71507b260b6..575c5436ebd 100644 --- a/drivers/net/wireless/b43/phy.c +++ b/drivers/net/wireless/b43/phy.c @@ -860,7 +860,7 @@ static void b43_phy_ww(struct b43_wldev *dev) b43_phy_write(dev, B43_PHY_OFDM(0xBB), (b43_phy_read(dev, B43_PHY_OFDM(0xBB)) & 0xF000) | 0x0053); b43_phy_write(dev, B43_PHY_OFDM61, - (b43_phy_read(dev, B43_PHY_OFDM61 & 0xFE1F)) | 0x0120); + (b43_phy_read(dev, B43_PHY_OFDM61) & 0xFE1F) | 0x0120); b43_phy_write(dev, B43_PHY_OFDM(0x13), (b43_phy_read(dev, B43_PHY_OFDM(0x13)) & 0x0FFF) | 0x3000); b43_phy_write(dev, B43_PHY_OFDM(0x14), -- GitLab From f50e4a8494a74bdbc0f86f1430a4cca2a4f28799 Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Wed, 12 Mar 2008 16:13:31 -0400 Subject: [PATCH 832/923] ath5k: disable irq handling in ath5k_hw_detach() Once ah has been freed, it may not be accessed. Set ATH_STAT_INVALID bit to make the interrupt handler return IRQ_NONE without accessing ah. This fixes oops on unload with CONFIG_DEBUG_SHIRQ enabled. Signed-off-by: Pavel Roskin Acked-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/hw.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c index c2de2d958e8..01757436353 100644 --- a/drivers/net/wireless/ath5k/hw.c +++ b/drivers/net/wireless/ath5k/hw.c @@ -427,6 +427,8 @@ void ath5k_hw_detach(struct ath5k_hw *ah) { ATH5K_TRACE(ah->ah_sc); + __set_bit(ATH_STAT_INVALID, ah->ah_sc->status); + if (ah->ah_rf_banks != NULL) kfree(ah->ah_rf_banks); -- GitLab From 1682fe6de206bd1e937529cbb393915e5ea40b2c Mon Sep 17 00:00:00 2001 From: Ivo van Doorn Date: Thu, 13 Mar 2008 15:38:03 +0100 Subject: [PATCH 833/923] rt2x00: Add suspend/resume handlers to rt2x00rfkill Add suspend/resume handlers to rt2x00rfkill to have it stop the input-polldev and prevent it from calling rt2x00 during suspend period. This could lead to a NULL pointer fault when rt2x00 suspended, but polldev send a request, because the csr_addr is NULL. Also don't let the rfkill allocation/registration block the initialization of the entire device. Just print a warning and continue as if nothing happened. Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2x00.h | 3 + drivers/net/wireless/rt2x00/rt2x00dev.c | 35 +++---- drivers/net/wireless/rt2x00/rt2x00lib.h | 20 ++-- drivers/net/wireless/rt2x00/rt2x00rfkill.c | 116 +++++++++++++-------- 4 files changed, 106 insertions(+), 68 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 05927b908f8..6c725422af5 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -620,6 +620,9 @@ struct rt2x00_dev { * This will only be compiled in when required. */ #ifdef CONFIG_RT2X00_LIB_RFKILL +unsigned long rfkill_state; +#define RFKILL_STATE_ALLOCATED 1 +#define RFKILL_STATE_REGISTERED 2 struct rfkill *rfkill; struct input_polled_dev *poll_dev; #endif /* CONFIG_RT2X00_LIB_RFKILL */ diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 0d51f478bcd..bc846ba12f6 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -1098,7 +1098,7 @@ static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev) return; /* - * Unregister rfkill. + * Unregister extra components. */ rt2x00rfkill_unregister(rt2x00dev); @@ -1139,11 +1139,9 @@ static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) __set_bit(DEVICE_INITIALIZED, &rt2x00dev->flags); /* - * Register the rfkill handler. + * Register the extra components. */ - status = rt2x00rfkill_register(rt2x00dev); - if (status) - goto exit_unitialize; + rt2x00rfkill_register(rt2x00dev); return 0; @@ -1313,15 +1311,9 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) } /* - * Allocatie rfkill. - */ - retval = rt2x00rfkill_allocate(rt2x00dev); - if (retval) - goto exit; - - /* - * Open the debugfs entry. + * Register extra components. */ + rt2x00rfkill_allocate(rt2x00dev); rt2x00debug_register(rt2x00dev); __set_bit(DEVICE_PRESENT, &rt2x00dev->flags); @@ -1350,13 +1342,9 @@ void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) rt2x00lib_uninitialize(rt2x00dev); /* - * Close debugfs entry. + * Free extra components */ rt2x00debug_deregister(rt2x00dev); - - /* - * Free rfkill - */ rt2x00rfkill_free(rt2x00dev); /* @@ -1395,11 +1383,15 @@ int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state) __set_bit(DEVICE_STARTED_SUSPEND, &rt2x00dev->flags); /* - * Disable radio and unitialize all items - * that must be recreated on resume. + * Disable radio. */ rt2x00lib_stop(rt2x00dev); rt2x00lib_uninitialize(rt2x00dev); + + /* + * Suspend/disable extra components. + */ + rt2x00rfkill_suspend(rt2x00dev); rt2x00debug_deregister(rt2x00dev); exit: @@ -1422,9 +1414,10 @@ int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev) NOTICE(rt2x00dev, "Waking up.\n"); /* - * Open the debugfs entry. + * Restore/enable extra components. */ rt2x00debug_register(rt2x00dev); + rt2x00rfkill_resume(rt2x00dev); /* * Only continue if mac80211 had open interfaces. diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h index 1adbd28e097..ce58c654ade 100644 --- a/drivers/net/wireless/rt2x00/rt2x00lib.h +++ b/drivers/net/wireless/rt2x00/rt2x00lib.h @@ -100,28 +100,36 @@ static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev, * RFkill handlers. */ #ifdef CONFIG_RT2X00_LIB_RFKILL -int rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev); +void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev); void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev); -int rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev); +void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev); void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev); +void rt2x00rfkill_suspend(struct rt2x00_dev *rt2x00dev); +void rt2x00rfkill_resume(struct rt2x00_dev *rt2x00dev); #else -static inline int rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev) +static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev) { - return 0; } static inline void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev) { } -static inline int rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev) +static inline void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev) { - return 0; } static inline void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev) { } + +static inline void rt2x00rfkill_suspend(struct rt2x00_dev *rt2x00dev) +{ +} + +static inline void rt2x00rfkill_resume(struct rt2x00_dev *rt2x00dev) +{ +} #endif /* CONFIG_RT2X00_LIB_RFKILL */ #endif /* RT2X00LIB_H */ diff --git a/drivers/net/wireless/rt2x00/rt2x00rfkill.c b/drivers/net/wireless/rt2x00/rt2x00rfkill.c index 34a96d44e30..f9557759620 100644 --- a/drivers/net/wireless/rt2x00/rt2x00rfkill.c +++ b/drivers/net/wireless/rt2x00/rt2x00rfkill.c @@ -69,56 +69,81 @@ static void rt2x00rfkill_poll(struct input_polled_dev *poll_dev) } } -int rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev) +void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev) { - int retval; - - if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags)) - return 0; + if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) || + !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state)) + return; - retval = rfkill_register(rt2x00dev->rfkill); - if (retval) { + if (rfkill_register(rt2x00dev->rfkill)) { ERROR(rt2x00dev, "Failed to register rfkill handler.\n"); - return retval; + return; } - retval = input_register_polled_device(rt2x00dev->poll_dev); - if (retval) { + if (input_register_polled_device(rt2x00dev->poll_dev)) { ERROR(rt2x00dev, "Failed to register polled device.\n"); rfkill_unregister(rt2x00dev->rfkill); - return retval; + return; } + __set_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state); + /* * Force initial poll which will detect the initial device state, * and correctly sends the signal to the rfkill layer about this * state. */ rt2x00rfkill_poll(rt2x00dev->poll_dev); - - return 0; } void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev) { - if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags)) + if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) || + !test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state)) return; input_unregister_polled_device(rt2x00dev->poll_dev); rfkill_unregister(rt2x00dev->rfkill); + + __clear_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state); } -int rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev) +static struct input_polled_dev * +rt2x00rfkill_allocate_polldev(struct rt2x00_dev *rt2x00dev) { - struct device *device = wiphy_dev(rt2x00dev->hw->wiphy); + struct input_polled_dev *poll_dev; + + poll_dev = input_allocate_polled_device(); + if (!poll_dev) + return NULL; + + poll_dev->private = rt2x00dev; + poll_dev->poll = rt2x00rfkill_poll; + poll_dev->poll_interval = RFKILL_POLL_INTERVAL; + + poll_dev->input->name = rt2x00dev->ops->name; + poll_dev->input->phys = wiphy_name(rt2x00dev->hw->wiphy); + poll_dev->input->id.bustype = BUS_HOST; + poll_dev->input->id.vendor = 0x1814; + poll_dev->input->id.product = rt2x00dev->chip.rt; + poll_dev->input->id.version = rt2x00dev->chip.rev; + poll_dev->input->dev.parent = wiphy_dev(rt2x00dev->hw->wiphy); + poll_dev->input->evbit[0] = BIT(EV_KEY); + set_bit(KEY_WLAN, poll_dev->input->keybit); + + return poll_dev; +} +void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev) +{ if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags)) - return 0; + return; - rt2x00dev->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN); + rt2x00dev->rfkill = + rfkill_allocate(wiphy_dev(rt2x00dev->hw->wiphy), RFKILL_TYPE_WLAN); if (!rt2x00dev->rfkill) { ERROR(rt2x00dev, "Failed to allocate rfkill handler.\n"); - goto exit; + return; } rt2x00dev->rfkill->name = rt2x00dev->ops->name; @@ -126,40 +151,49 @@ int rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev) rt2x00dev->rfkill->state = -1; rt2x00dev->rfkill->toggle_radio = rt2x00rfkill_toggle_radio; - rt2x00dev->poll_dev = input_allocate_polled_device(); + rt2x00dev->poll_dev = rt2x00rfkill_allocate_polldev(rt2x00dev); if (!rt2x00dev->poll_dev) { ERROR(rt2x00dev, "Failed to allocate polled device.\n"); - goto exit_free_rfkill; + rfkill_free(rt2x00dev->rfkill); + rt2x00dev->rfkill = NULL; + return; } - rt2x00dev->poll_dev->private = rt2x00dev; - rt2x00dev->poll_dev->poll = rt2x00rfkill_poll; - rt2x00dev->poll_dev->poll_interval = RFKILL_POLL_INTERVAL; + return; +} - rt2x00dev->poll_dev->input->name = rt2x00dev->ops->name; - rt2x00dev->poll_dev->input->phys = wiphy_name(rt2x00dev->hw->wiphy); - rt2x00dev->poll_dev->input->id.bustype = BUS_HOST; - rt2x00dev->poll_dev->input->id.vendor = 0x1814; - rt2x00dev->poll_dev->input->id.product = rt2x00dev->chip.rt; - rt2x00dev->poll_dev->input->id.version = rt2x00dev->chip.rev; - rt2x00dev->poll_dev->input->dev.parent = device; - rt2x00dev->poll_dev->input->evbit[0] = BIT(EV_KEY); - set_bit(KEY_WLAN, rt2x00dev->poll_dev->input->keybit); +void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev) +{ + if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) || + !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state)) + return; - return 0; + input_free_polled_device(rt2x00dev->poll_dev); + rt2x00dev->poll_dev = NULL; -exit_free_rfkill: rfkill_free(rt2x00dev->rfkill); - -exit: - return -ENOMEM; + rt2x00dev->rfkill = NULL; } -void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev) +void rt2x00rfkill_suspend(struct rt2x00_dev *rt2x00dev) { - if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags)) + if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) || + !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state)) return; input_free_polled_device(rt2x00dev->poll_dev); - rfkill_free(rt2x00dev->rfkill); + rt2x00dev->poll_dev = NULL; +} + +void rt2x00rfkill_resume(struct rt2x00_dev *rt2x00dev) +{ + if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) || + !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state)) + return; + + rt2x00dev->poll_dev = rt2x00rfkill_allocate_polldev(rt2x00dev); + if (!rt2x00dev->poll_dev) { + ERROR(rt2x00dev, "Failed to allocate polled device.\n"); + return; + } } -- GitLab From b500ce8d24d1f14426643da5f6fada28c1f60533 Mon Sep 17 00:00:00 2001 From: "Ahmed S. Darwish" Date: Thu, 13 Mar 2008 12:32:34 -0700 Subject: [PATCH 834/923] smackfs: do not trust `count' in inodes write()s Smackfs write() implementation does not put a higher bound on the number of bytes to copy from user-space. This may lead to a DOS attack if a malicious `count' field is given. Assure that given `count' is exactly the length needed for a /smack/load rule. In case of /smack/cipso where the length is relative, assure that `count' does not exceed the size needed for a buffer representing maximum possible number of CIPSO 2.2 categories. Signed-off-by: Ahmed S. Darwish Acked-by: Casey Schaufler Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- security/smack/smack.h | 8 -------- security/smack/smackfs.c | 31 ++++++++++++++++++++----------- 2 files changed, 20 insertions(+), 19 deletions(-) diff --git a/security/smack/smack.h b/security/smack/smack.h index a21a0e907ab..62c1e982849 100644 --- a/security/smack/smack.h +++ b/security/smack/smack.h @@ -26,14 +26,6 @@ #define SMK_MAXLEN 23 #define SMK_LABELLEN (SMK_MAXLEN+1) -/* - * How many kinds of access are there? - * Here's your answer. - */ -#define SMK_ACCESSDASH '-' -#define SMK_ACCESSLOW "rwxa" -#define SMK_ACCESSKINDS (sizeof(SMK_ACCESSLOW) - 1) - struct superblock_smack { char *smk_root; char *smk_floor; diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c index 358c92c1a15..afe7c9b0732 100644 --- a/security/smack/smackfs.c +++ b/security/smack/smackfs.c @@ -81,10 +81,23 @@ static struct semaphore smack_write_sem; /* * Values for parsing cipso rules * SMK_DIGITLEN: Length of a digit field in a rule. - * SMK_CIPSOMEN: Minimum possible cipso rule length. + * SMK_CIPSOMIN: Minimum possible cipso rule length. + * SMK_CIPSOMAX: Maximum possible cipso rule length. */ #define SMK_DIGITLEN 4 -#define SMK_CIPSOMIN (SMK_MAXLEN + 2 * SMK_DIGITLEN) +#define SMK_CIPSOMIN (SMK_LABELLEN + 2 * SMK_DIGITLEN) +#define SMK_CIPSOMAX (SMK_CIPSOMIN + SMACK_CIPSO_MAXCATNUM * SMK_DIGITLEN) + +/* + * Values for parsing MAC rules + * SMK_ACCESS: Maximum possible combination of access permissions + * SMK_ACCESSLEN: Maximum length for a rule access field + * SMK_LOADLEN: Smack rule length + */ +#define SMK_ACCESS "rwxa" +#define SMK_ACCESSLEN (sizeof(SMK_ACCESS) - 1) +#define SMK_LOADLEN (SMK_LABELLEN + SMK_LABELLEN + SMK_ACCESSLEN) + /* * Seq_file read operations for /smack/load @@ -229,14 +242,10 @@ static void smk_set_access(struct smack_rule *srp) * The format is exactly: * char subject[SMK_LABELLEN] * char object[SMK_LABELLEN] - * char access[SMK_ACCESSKINDS] - * - * Anything following is commentary and ignored. + * char access[SMK_ACCESSLEN] * - * writes must be SMK_LABELLEN+SMK_LABELLEN+4 bytes. + * writes must be SMK_LABELLEN+SMK_LABELLEN+SMK_ACCESSLEN bytes. */ -#define MINIMUM_LOAD (SMK_LABELLEN + SMK_LABELLEN + SMK_ACCESSKINDS) - static ssize_t smk_write_load(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { @@ -253,7 +262,7 @@ static ssize_t smk_write_load(struct file *file, const char __user *buf, return -EPERM; if (*ppos != 0) return -EINVAL; - if (count < MINIMUM_LOAD) + if (count != SMK_LOADLEN) return -EINVAL; data = kzalloc(count, GFP_KERNEL); @@ -513,7 +522,7 @@ static ssize_t smk_write_cipso(struct file *file, const char __user *buf, return -EPERM; if (*ppos != 0) return -EINVAL; - if (count <= SMK_CIPSOMIN) + if (count < SMK_CIPSOMIN || count > SMK_CIPSOMAX) return -EINVAL; data = kzalloc(count + 1, GFP_KERNEL); @@ -547,7 +556,7 @@ static ssize_t smk_write_cipso(struct file *file, const char __user *buf, if (ret != 1 || catlen > SMACK_CIPSO_MAXCATNUM) goto out; - if (count <= (SMK_CIPSOMIN + catlen * SMK_DIGITLEN)) + if (count != (SMK_CIPSOMIN + catlen * SMK_DIGITLEN)) goto out; memset(mapcatset, 0, sizeof(mapcatset)); -- GitLab From fb39380b8d683b55630ba5ba381f4e43e417420e Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Thu, 13 Mar 2008 12:32:35 -0700 Subject: [PATCH 835/923] pagemap: proper read error handling Fix pagemap_read() error handling by releasing acquired resources and checking for get_user_pages() partial failure. Signed-off-by: Marcelo Tosatti Acked-by: Matt Mackall Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/task_mmu.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 6dc0334815f..4206454734e 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -640,17 +640,17 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, ret = -EACCES; if (!ptrace_may_attach(task)) - goto out; + goto out_task; ret = -EINVAL; /* file position must be aligned */ if (*ppos % PM_ENTRY_BYTES) - goto out; + goto out_task; ret = 0; mm = get_task_mm(task); if (!mm) - goto out; + goto out_task; ret = -ENOMEM; uaddr = (unsigned long)buf & PAGE_MASK; @@ -658,7 +658,7 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, pagecount = (PAGE_ALIGN(uend) - uaddr) / PAGE_SIZE; pages = kmalloc(pagecount * sizeof(struct page *), GFP_KERNEL); if (!pages) - goto out_task; + goto out_mm; down_read(¤t->mm->mmap_sem); ret = get_user_pages(current, current->mm, uaddr, pagecount, @@ -668,6 +668,12 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, if (ret < 0) goto out_free; + if (ret != pagecount) { + pagecount = ret; + ret = -EFAULT; + goto out_pages; + } + pm.out = buf; pm.end = buf + count; @@ -699,15 +705,17 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, ret = pm.out - buf; } +out_pages: for (; pagecount; pagecount--) { page = pages[pagecount-1]; if (!PageReserved(page)) SetPageDirty(page); page_cache_release(page); } - mmput(mm); out_free: kfree(pages); +out_mm: + mmput(mm); out_task: put_task_struct(task); out: -- GitLab From 12d48739d0b5d96efe6b7d26107f5572c6215f4a Mon Sep 17 00:00:00 2001 From: Yoshinori Sato Date: Thu, 13 Mar 2008 12:32:37 -0700 Subject: [PATCH 836/923] h8300: fix recent uaccess breakage Al Viro wrote: > > After that commit in asm-h8300/uaccess.h we have > > #define get_user(x, ptr) \ > ({ \ > int __gu_err = 0; \ > uint32_t __gu_val = 0; \ > ^^^^^^^^^^^^^^^^^ > switch (sizeof(*(ptr))) { \ > case 1: \ > case 2: \ > case 4: \ > __gu_val = *(ptr); \ > break; \ > case 8: \ > memcpy(&__gu_val, ptr, sizeof (*(ptr))); \ > ^^^^^^^^^^^^^^^^ > > which, of course, is FUBAR whenever we actually hit that case - memcpy of > 8 bytes into uint32_t is obviously wrong. Why don't we simply do Cc: Al Viro Signed-off-by: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-h8300/uaccess.h | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/include/asm-h8300/uaccess.h b/include/asm-h8300/uaccess.h index a22350ec271..356068cd087 100644 --- a/include/asm-h8300/uaccess.h +++ b/include/asm-h8300/uaccess.h @@ -91,22 +91,19 @@ extern int __put_user_bad(void); #define get_user(x, ptr) \ ({ \ int __gu_err = 0; \ - uint32_t __gu_val = 0; \ + typeof(*(ptr)) __gu_val = *ptr; \ switch (sizeof(*(ptr))) { \ case 1: \ case 2: \ case 4: \ - __gu_val = *(ptr); \ - break; \ - case 8: \ - memcpy(&__gu_val, ptr, sizeof (*(ptr))); \ + case 8: \ break; \ default: \ - __gu_val = 0; \ __gu_err = __get_user_bad(); \ + __gu_val = 0; \ break; \ } \ - (x) = (typeof(*(ptr)))__gu_val; \ + (x) = __gu_val; \ __gu_err; \ }) #define __get_user(x, ptr) get_user(x, ptr) -- GitLab From 40369e1cdb71287662213ae214842899e77a0544 Mon Sep 17 00:00:00 2001 From: Jan Nikitenko Date: Thu, 13 Mar 2008 12:32:38 -0700 Subject: [PATCH 837/923] au1550_spi: fix prototype of irq handler Remove struct pt_regs *regs from prototype of au1550_spi_irq handler to avoid warning in request_irq(). Also fix comment type leadin. Signed-off-by: Jan Nikitenko Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/au1550_spi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/au1550_spi.c b/drivers/spi/au1550_spi.c index c47a650183a..41a3d00c451 100644 --- a/drivers/spi/au1550_spi.c +++ b/drivers/spi/au1550_spi.c @@ -99,7 +99,7 @@ static dbdev_tab_t au1550_spi_mem_dbdev = static void au1550_spi_bits_handlers_set(struct au1550_spi *hw, int bpw); -/** +/* * compute BRG and DIV bits to setup spi clock based on main input clock rate * that was specified in platform data structure * according to au1550 datasheet: @@ -650,7 +650,7 @@ static int au1550_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) return hw->txrx_bufs(spi, t); } -static irqreturn_t au1550_spi_irq(int irq, void *dev, struct pt_regs *regs) +static irqreturn_t au1550_spi_irq(int irq, void *dev) { struct au1550_spi *hw = dev; return hw->irq_callback(hw); -- GitLab From 2cfb8ce8c87802181ade74f5dadb3dded9bb4c7e Mon Sep 17 00:00:00 2001 From: Jan Nikitenko Date: Thu, 13 Mar 2008 12:32:39 -0700 Subject: [PATCH 838/923] spi_bitbang: short transfer status fix SPI controller drivers return number of bytes actually transfered from bitbang->txrx_bufs() method. This updates handling of short transfers (where the transfer size is less than requested): - Even zero byte short transfers should report errors; - Include short transfers in the total of transferred bytes; - Use EREMOTEIO (like USB) not EMSGSIZE to report short transfers Short transfers don't normally mean invalid message sizes, but if the underlying controller driver needs to use EMSGSIZE it can still do so. [db: fix two more minor issues] Signed-off-by: Jan Nikitenko Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bitbang.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi_bitbang.c b/drivers/spi/spi_bitbang.c index f7f8580edad..71e881419cd 100644 --- a/drivers/spi/spi_bitbang.c +++ b/drivers/spi/spi_bitbang.c @@ -344,12 +344,14 @@ static void bitbang_work(struct work_struct *work) t->rx_dma = t->tx_dma = 0; status = bitbang->txrx_bufs(spi, t); } + if (status > 0) + m->actual_length += status; if (status != t->len) { - if (status > 0) - status = -EMSGSIZE; + /* always report some kind of error */ + if (status >= 0) + status = -EREMOTEIO; break; } - m->actual_length += status; status = 0; /* protocol tweaks before next transfer */ -- GitLab From 9efda797d60adbbe77aaf33cda0dfee161ac712c Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Thu, 13 Mar 2008 12:32:39 -0700 Subject: [PATCH 839/923] char: riscom, fix rc_board indexing In riscom8_init_module, rc_board should be indexed by i, not by 0, otherwise the loop is useless. Signed-off-by: Jiri Slaby Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/riscom8.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c index 589ac6f65b9..3f9d0a9ac36 100644 --- a/drivers/char/riscom8.c +++ b/drivers/char/riscom8.c @@ -1709,7 +1709,7 @@ static int __init riscom8_init_module (void) if (iobase || iobase1 || iobase2 || iobase3) { for(i = 0; i < RC_NBOARD; i++) - rc_board[0].base = 0; + rc_board[i].base = 0; } if (iobase) -- GitLab From fd28841d2d0b1468b03288b331692769ad024b5e Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Thu, 13 Mar 2008 12:32:40 -0700 Subject: [PATCH 840/923] alpha: use iommu_is_span_boundary helper function iommu_is_span_boundary in lib/iommu-helper.c was exported for PARISC IOMMUs (commit 3715863aa142c4f4c5208f5f3e5e9bac06006d2f). Alpha's IOMMU can use it. This removes the check on the boundary size alignment because iommu_is_span_boundary does. Signed-off-by: FUJITA Tomonori Cc: Richard Henderson Acked-by: Ivan Kokshaysky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/Kconfig | 3 +++ arch/alpha/kernel/pci_iommu.c | 12 ++---------- 2 files changed, 5 insertions(+), 10 deletions(-) diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 002703b8c0b..729cdbdf803 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -330,6 +330,9 @@ config PCI_DOMAINS config PCI_SYSCALL def_bool PCI +config IOMMU_HELPER + def_bool PCI + config ALPHA_CORE_AGP bool depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index e07a23fc5b7..4e1c08636ed 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include @@ -125,14 +126,6 @@ iommu_arena_new(struct pci_controller *hose, dma_addr_t base, return iommu_arena_new_node(0, hose, base, window_size, align); } -static inline int is_span_boundary(unsigned int index, unsigned int nr, - unsigned long shift, - unsigned long boundary_size) -{ - shift = (shift + index) & (boundary_size - 1); - return shift + nr > boundary_size; -} - /* Must be called with the arena lock held */ static long iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena, @@ -147,7 +140,6 @@ iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena, base = arena->dma_base >> PAGE_SHIFT; if (dev) { boundary_size = dma_get_seg_boundary(dev) + 1; - BUG_ON(!is_power_of_2(boundary_size)); boundary_size >>= PAGE_SHIFT; } else { boundary_size = 1UL << (32 - PAGE_SHIFT); @@ -161,7 +153,7 @@ iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena, again: while (i < n && p+i < nent) { - if (!i && is_span_boundary(p, n, base, boundary_size)) { + if (!i && iommu_is_span_boundary(p, n, base, boundary_size)) { p = ALIGN(p + 1, mask + 1); goto again; } -- GitLab From bd0e88e5174035d69204636289a21dc4c14238ec Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 13 Mar 2008 12:32:43 -0700 Subject: [PATCH 841/923] kernel-doc: set verbose mode via environment Honor the environment variable "KBUILD_VERBOSE=1" (as set by make V=1) to enable verbose mode in scripts/kernel-doc. Useful for getting more info and warnings from kernel-doc. Signed-off-by: Randy Dunlap Cc: Sam Ravnborg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/kernel-doc | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/scripts/kernel-doc b/scripts/kernel-doc index 74c2f9db2aa..263d04ab2d9 100755 --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -247,6 +247,10 @@ my ($function, %function_table,%parametertypes,$declaration_purpose); my ($type,$declaration_name,$return_type); my ($newsection,$newcontents,$prototype,$filelist, $brcount, %source_map); +if (defined($ENV{'KBUILD_VERBOSE'})) { + $verbose = "$ENV{'KBUILD_VERBOSE'}"; +} + # Generated docbook code is inserted in a template at a point where # docbook v3.1 requires a non-zero sequence of RefEntry's; see: # http://www.oasis-open.org/docbook/documentation/reference/html/refentry.html -- GitLab From f2005e1777614b65d1970924ca1b61e4caccb0d3 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Thu, 13 Mar 2008 12:32:43 -0700 Subject: [PATCH 842/923] block: floppy: fix rmmod lockup Floppy rmmod locks up when no such hardware was initialized, since there is nobody to wake the remove code up. Remove the completion, because release is called during platform_unregister anyway. Signed-off-by: Jiri Slaby Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/floppy.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 32c79a55511..7652e87d60c 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -217,7 +217,6 @@ static int use_virtual_dma; */ static DEFINE_SPINLOCK(floppy_lock); -static struct completion device_release; static unsigned short virtual_dma_port = 0x3f0; irqreturn_t floppy_interrupt(int irq, void *dev_id); @@ -4144,7 +4143,6 @@ DEVICE_ATTR(cmos,S_IRUGO,floppy_cmos_show,NULL); static void floppy_device_release(struct device *dev) { - complete(&device_release); } static struct platform_device floppy_device[N_DRIVE]; @@ -4539,7 +4537,6 @@ void cleanup_module(void) { int drive; - init_completion(&device_release); blk_unregister_region(MKDEV(FLOPPY_MAJOR, 0), 256); unregister_blkdev(FLOPPY_MAJOR, "fd"); @@ -4564,8 +4561,6 @@ void cleanup_module(void) /* eject disk, if any */ fd_eject(0); - - wait_for_completion(&device_release); } module_param(floppy, charp, 0); -- GitLab From b15a3891c916f32a29832886a053a48be2741d4d Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 13 Mar 2008 09:13:30 +0000 Subject: [PATCH 843/923] avoid endless loops in lib/swiotlb.c Commit 681cc5cd3efbeafca6386114070e0bfb5012e249 ("iommu sg merging: swiotlb: respect the segment boundary limits") introduced two possibilities for entering an endless loop in lib/swiotlb.c: - if max_slots is zero (possible if mask is ~0UL) - if the number of slots requested fits into a swiotlb segment, but is too large for the part of a segment which remains after considering offset_slots This fixes them Signed-off-by: Jan Beulich Cc: FUJITA Tomonori Cc: Andrew Morton Signed-off-by: Linus Torvalds --- lib/swiotlb.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/lib/swiotlb.c b/lib/swiotlb.c index 4bb5a11e18a..025922807e6 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -310,7 +310,9 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir) start_dma_addr = virt_to_bus(io_tlb_start) & mask; offset_slots = ALIGN(start_dma_addr, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT; - max_slots = ALIGN(mask + 1, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT; + max_slots = mask + 1 + ? ALIGN(mask + 1, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT + : 1UL << (BITS_PER_LONG - IO_TLB_SHIFT); /* * For mappings greater than a page, we limit the stride (and @@ -333,16 +335,18 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir) index = ALIGN(io_tlb_index, stride); if (index >= io_tlb_nslabs) index = 0; - - while (is_span_boundary(index, nslots, offset_slots, - max_slots)) { - index += stride; - if (index >= io_tlb_nslabs) - index = 0; - } wrap = index; do { + while (is_span_boundary(index, nslots, offset_slots, + max_slots)) { + index += stride; + if (index >= io_tlb_nslabs) + index = 0; + if (index == wrap) + goto not_found; + } + /* * If we find a slot that indicates we have 'nslots' * number of contiguous buffers, we allocate the @@ -367,14 +371,12 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir) goto found; } - do { - index += stride; - if (index >= io_tlb_nslabs) - index = 0; - } while (is_span_boundary(index, nslots, offset_slots, - max_slots)); + index += stride; + if (index >= io_tlb_nslabs) + index = 0; } while (index != wrap); + not_found: spin_unlock_irqrestore(&io_tlb_lock, flags); return NULL; } -- GitLab From 25df287dc7434edf8dda10ce85e43f88e834a494 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 23 Feb 2008 12:24:17 +0100 Subject: [PATCH 844/923] firewire: endianess fix The generation of incoming requests was filled in in wrong byte order on machines with big endian CPU. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-ohci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index 7ebad3c14cb..ed4e3573e72 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -375,7 +375,7 @@ static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer) */ if (p.ack + 16 == 0x09) - ohci->request_generation = (buffer[2] >> 16) & 0xff; + ohci->request_generation = (p.header[2] >> 16) & 0xff; else if (ctx == &ohci->ar_request_ctx) fw_core_handle_request(&ohci->card, &p); else -- GitLab From efbf390a2d940315efff174455243e61f23c03b9 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 23 Feb 2008 12:24:57 +0100 Subject: [PATCH 845/923] firewire: endianess annotations Kills warnings from 'make C=1 CHECKFLAGS="-D__CHECK_ENDIAN__" modules': drivers/firewire/fw-transaction.c:771:10: warning: incorrect type in assignment (different base types) drivers/firewire/fw-transaction.c:771:10: expected unsigned int [unsigned] [usertype] drivers/firewire/fw-transaction.c:771:10: got restricted unsigned int [usertype] drivers/firewire/fw-transaction.h:93:10: warning: incorrect type in assignment (different base types) drivers/firewire/fw-transaction.h:93:10: expected unsigned int [unsigned] [usertype] drivers/firewire/fw-transaction.h:93:10: got restricted unsigned int [usertype] drivers/firewire/fw-ohci.c:1490:8: warning: restricted degrades to integer drivers/firewire/fw-ohci.c:1490:35: warning: restricted degrades to integer drivers/firewire/fw-ohci.c:1516:5: warning: cast to restricted type Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-ohci.c | 4 ++-- drivers/firewire/fw-transaction.c | 2 +- drivers/firewire/fw-transaction.h | 6 +++--- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index ed4e3573e72..f9440a760da 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -1487,7 +1487,7 @@ static int handle_ir_dualbuffer_packet(struct context *context, void *p, *end; int i; - if (db->first_res_count > 0 && db->second_res_count > 0) { + if (db->first_res_count != 0 && db->second_res_count != 0) { if (ctx->excess_bytes <= le16_to_cpu(db->second_req_count)) { /* This descriptor isn't done yet, stop iteration. */ return 0; @@ -1513,7 +1513,7 @@ static int handle_ir_dualbuffer_packet(struct context *context, memcpy(ctx->header + i + 4, p + 8, ctx->base.header_size - 4); i += ctx->base.header_size; ctx->excess_bytes += - (le32_to_cpu(*(u32 *)(p + 4)) >> 16) & 0xffff; + (le32_to_cpu(*(__le32 *)(p + 4)) >> 16) & 0xffff; p += ctx->base.header_size + 4; } ctx->header_length = i; diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c index 7fcc59dedf0..99529e59a0b 100644 --- a/drivers/firewire/fw-transaction.c +++ b/drivers/firewire/fw-transaction.c @@ -751,7 +751,7 @@ handle_topology_map(struct fw_card *card, struct fw_request *request, void *payload, size_t length, void *callback_data) { int i, start, end; - u32 *map; + __be32 *map; if (!TCODE_IS_READ_REQUEST(tcode)) { fw_send_response(card, request, RCODE_TYPE_ERROR); diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h index 09cb7287045..a43bb22912f 100644 --- a/drivers/firewire/fw-transaction.h +++ b/drivers/firewire/fw-transaction.h @@ -86,12 +86,12 @@ static inline void fw_memcpy_from_be32(void *_dst, void *_src, size_t size) { - u32 *dst = _dst; - u32 *src = _src; + u32 *dst = _dst; + __be32 *src = _src; int i; for (i = 0; i < size / 4; i++) - dst[i] = cpu_to_be32(src[i]); + dst[i] = be32_to_cpu(src[i]); } static inline void -- GitLab From ea8d006b91ac58ec5a0862d09e0b629db399517f Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 1 Mar 2008 02:42:56 +0100 Subject: [PATCH 846/923] firewire: fw-ohci: PPC PMac platform code Copied from ohci1394.c. This code is necessary to prevent machine check exceptions when reloading or resuming the driver. Tested on a 1st generation PowerBook G4 Titanium, which also needs the pci_probe() hunk. Signed-off-by: Stefan Richter I was able to reproduce the system exception on resume with a 3rd-gen Titanium PowerBook G4 667, and this patch does let the system resume successfully now. Not quite clear if there was possibly an updated version coming using pci_enable_device() instead of the pair of pmac_call_feature() calls, but either way, this is a definite must-have, at least for older ppc macs -- my Aluminum PowerBook G4/1.67 suspends and resumes without this patch just fine. Signed-off-by: Jarod Wilson Acked-by: Benjamin Herrenschmidt --- drivers/firewire/fw-ohci.c | 49 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index f9440a760da..182be8672df 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -33,6 +33,10 @@ #include #include +#ifdef CONFIG_PPC_PMAC +#include +#endif + #include "fw-ohci.h" #include "fw-transaction.h" @@ -2048,6 +2052,18 @@ pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) int err; size_t size; +#ifdef CONFIG_PPC_PMAC + /* Necessary on some machines if fw-ohci was loaded/ unloaded before */ + if (machine_is(powermac)) { + struct device_node *ofn = pci_device_to_OF_node(dev); + + if (ofn) { + pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, ofn, 0, 1); + pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 1); + } + } +#endif /* CONFIG_PPC_PMAC */ + ohci = kzalloc(sizeof(*ohci), GFP_KERNEL); if (ohci == NULL) { fw_error("Could not malloc fw_ohci data.\n"); @@ -2182,6 +2198,19 @@ static void pci_remove(struct pci_dev *dev) pci_disable_device(dev); fw_card_put(&ohci->card); +#ifdef CONFIG_PPC_PMAC + /* On UniNorth, power down the cable and turn off the chip clock + * to save power on laptops */ + if (machine_is(powermac)) { + struct device_node *ofn = pci_device_to_OF_node(dev); + + if (ofn) { + pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 0); + pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, ofn, 0, 0); + } + } +#endif /* CONFIG_PPC_PMAC */ + fw_notify("Removed fw-ohci device.\n"); } @@ -2202,6 +2231,16 @@ static int pci_suspend(struct pci_dev *pdev, pm_message_t state) if (err) fw_error("pci_set_power_state failed with %d\n", err); +/* PowerMac suspend code comes last */ +#ifdef CONFIG_PPC_PMAC + if (machine_is(powermac)) { + struct device_node *ofn = pci_device_to_OF_node(pdev); + + if (ofn) + pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 0); + } +#endif /* CONFIG_PPC_PMAC */ + return 0; } @@ -2210,6 +2249,16 @@ static int pci_resume(struct pci_dev *pdev) struct fw_ohci *ohci = pci_get_drvdata(pdev); int err; +/* PowerMac resume code comes first */ +#ifdef CONFIG_PPC_PMAC + if (machine_is(powermac)) { + struct device_node *ofn = pci_device_to_OF_node(pdev); + + if (ofn) + pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 1); + } +#endif /* CONFIG_PPC_PMAC */ + pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); err = pci_enable_device(pdev); -- GitLab From 11bf20ad028880a56689f086bfbabfd88b2af38b Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 1 Mar 2008 02:47:15 +0100 Subject: [PATCH 847/923] firewire: fw-ohci: Apple UniNorth 1st generation support Mostly copied from ohci1394.c. Necessary for some older Macs, e.g. PowerBook G3 Pismo and early PowerBook G4 Titanium. Signed-off-by: Stefan Richter --- drivers/firewire/fw-ohci.c | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index 182be8672df..eaa213e2159 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -179,6 +179,7 @@ struct fw_ohci { int generation; int request_generation; u32 bus_seconds; + bool old_uninorth; /* * Spinlock for accessing fw_ohci data. Never call out of @@ -315,15 +316,22 @@ static int ar_context_add_page(struct ar_context *ctx) return 0; } +#if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) +#define cond_le32_to_cpu(v) \ + (ohci->old_uninorth ? (__force __u32)(v) : le32_to_cpu(v)) +#else +#define cond_le32_to_cpu(v) le32_to_cpu(v) +#endif + static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer) { struct fw_ohci *ohci = ctx->ohci; struct fw_packet p; u32 status, length, tcode; - p.header[0] = le32_to_cpu(buffer[0]); - p.header[1] = le32_to_cpu(buffer[1]); - p.header[2] = le32_to_cpu(buffer[2]); + p.header[0] = cond_le32_to_cpu(buffer[0]); + p.header[1] = cond_le32_to_cpu(buffer[1]); + p.header[2] = cond_le32_to_cpu(buffer[2]); tcode = (p.header[0] >> 4) & 0x0f; switch (tcode) { @@ -335,7 +343,7 @@ static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer) break; case TCODE_READ_BLOCK_REQUEST : - p.header[3] = le32_to_cpu(buffer[3]); + p.header[3] = cond_le32_to_cpu(buffer[3]); p.header_length = 16; p.payload_length = 0; break; @@ -344,7 +352,7 @@ static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer) case TCODE_READ_BLOCK_RESPONSE: case TCODE_LOCK_REQUEST: case TCODE_LOCK_RESPONSE: - p.header[3] = le32_to_cpu(buffer[3]); + p.header[3] = cond_le32_to_cpu(buffer[3]); p.header_length = 16; p.payload_length = p.header[3] >> 16; break; @@ -361,7 +369,7 @@ static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer) /* FIXME: What to do about evt_* errors? */ length = (p.header_length + p.payload_length + 3) / 4; - status = le32_to_cpu(buffer[length]); + status = cond_le32_to_cpu(buffer[length]); p.ack = ((status >> 16) & 0x1f) - 16; p.speed = (status >> 21) & 0x7; @@ -1026,13 +1034,14 @@ static void bus_reset_tasklet(unsigned long data) */ self_id_count = (reg_read(ohci, OHCI1394_SelfIDCount) >> 3) & 0x3ff; - generation = (le32_to_cpu(ohci->self_id_cpu[0]) >> 16) & 0xff; + generation = (cond_le32_to_cpu(ohci->self_id_cpu[0]) >> 16) & 0xff; rmb(); for (i = 1, j = 0; j < self_id_count; i += 2, j++) { if (ohci->self_id_cpu[i] != ~ohci->self_id_cpu[i + 1]) fw_error("inconsistent self IDs\n"); - ohci->self_id_buffer[j] = le32_to_cpu(ohci->self_id_cpu[i]); + ohci->self_id_buffer[j] = + cond_le32_to_cpu(ohci->self_id_cpu[i]); } rmb(); @@ -2082,6 +2091,10 @@ pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) pci_write_config_dword(dev, OHCI1394_PCI_HCI_Control, 0); pci_set_drvdata(dev, ohci); +#if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) + ohci->old_uninorth = dev->vendor == PCI_VENDOR_ID_APPLE && + dev->device == PCI_DEVICE_ID_APPLE_UNI_N_FW; +#endif spin_lock_init(&ohci->lock); tasklet_init(&ohci->bus_reset_tasklet, -- GitLab From 51f9dbef5be41f3ff6000c874741a3a357f9bad7 Mon Sep 17 00:00:00 2001 From: Jarod Wilson Date: Fri, 7 Mar 2008 01:43:01 -0500 Subject: [PATCH 848/923] firewire: fw-sbp2: set single-phase retry_limit Per the SBP-2 specification, all SBP-2 target devices must have a BUSY_TIMEOUT register. Per the 1394-1995 specification, the retry_limt portion of the register should be set to 0x0 initially, and set on the target by a logged in initiator (i.e., a Linux host w/firewire controller(s)). Well, as it turns out, lots of devices these days have actually moved on to starting to implement SBP-3 compliance, which says that retry_limit should default to 0xf instead (yes, SBP-3 stomps directly on 1394-1995, oops). Prior to this change, the firewire driver stack didn't touch retry_limit, and any SBP-3 compliant device worked fine, while SBP-2 compliant ones were unable to retransmit when the host returned an ack_busy_X, which resulted in stalled out I/O, eventually causing the SCSI layer to give up and offline the device. The simple fix is for us to set retry_limit to 0xf in the register for all devices (which actually matches what the old ieee1394 stack did). Prior to this change, a hard disk behind an SBP-2 Prolific PL-3507 bridge chip would routinely encounter buffer I/O errors and wind up offlined by the SCSI layer. With this change, I've encountered zero I/O failures moving tens of GB of data around. Signed-off-by: Jarod Wilson Signed-off-by: Stefan Richter --- drivers/firewire/fw-sbp2.c | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 03069a454c0..8bce569a7c5 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -173,6 +173,7 @@ struct sbp2_target { #define SBP2_ORB_TIMEOUT 2000U /* Timeout in ms */ #define SBP2_ORB_NULL 0x80000000 #define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000 +#define SBP2_RETRY_LIMIT 0xf /* 15 retries */ #define SBP2_DIRECTION_TO_MEDIA 0x0 #define SBP2_DIRECTION_FROM_MEDIA 0x1 @@ -812,6 +813,30 @@ static void sbp2_target_put(struct sbp2_target *tgt) kref_put(&tgt->kref, sbp2_release_target); } +static void +complete_set_busy_timeout(struct fw_card *card, int rcode, + void *payload, size_t length, void *done) +{ + complete(done); +} + +static void sbp2_set_busy_timeout(struct sbp2_logical_unit *lu) +{ + struct fw_device *device = fw_device(lu->tgt->unit->device.parent); + DECLARE_COMPLETION_ONSTACK(done); + struct fw_transaction t; + static __be32 busy_timeout; + + /* FIXME: we should try to set dual-phase cycle_limit too */ + busy_timeout = cpu_to_be32(SBP2_RETRY_LIMIT); + + fw_send_request(device->card, &t, TCODE_WRITE_QUADLET_REQUEST, + lu->tgt->node_id, lu->generation, device->max_speed, + CSR_REGISTER_BASE + CSR_BUSY_TIMEOUT, &busy_timeout, + sizeof(busy_timeout), complete_set_busy_timeout, &done); + wait_for_completion(&done); +} + static void sbp2_reconnect(struct work_struct *work); static void sbp2_login(struct work_struct *work) @@ -864,10 +889,8 @@ static void sbp2_login(struct work_struct *work) fw_notify("%s: logged in to LUN %04x (%d retries)\n", tgt->bus_id, lu->lun, lu->retries); -#if 0 - /* FIXME: The linux1394 sbp2 does this last step. */ - sbp2_set_busy_timeout(scsi_id); -#endif + /* set appropriate retry limit(s) in BUSY_TIMEOUT register */ + sbp2_set_busy_timeout(lu); PREPARE_DELAYED_WORK(&lu->work, sbp2_reconnect); sbp2_agent_reset(lu); -- GitLab From a2cdebe33f4c40a1bc7f66522303df89d5026cb4 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 8 Mar 2008 22:38:16 +0100 Subject: [PATCH 849/923] firewire: warn on fatal condition in topology code If this ever happens to anybody, we want to have it in his log. Signed-off-by: Stefan Richter --- drivers/firewire/fw-topology.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c index e47bb040197..d2c7a3d7e1c 100644 --- a/drivers/firewire/fw-topology.c +++ b/drivers/firewire/fw-topology.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include "fw-transaction.h" #include "fw-topology.h" @@ -424,8 +425,8 @@ update_tree(struct fw_card *card, struct fw_node *root) node1 = fw_node(list1.next); while (&node0->link != &list0) { + WARN_ON(node0->port_count != node1->port_count); - /* assert(node0->port_count == node1->port_count); */ if (node0->link_on && !node1->link_on) event = FW_NODE_LINK_OFF; else if (!node0->link_on && node1->link_on) -- GitLab From 0a8da30dc7bd6828f42d9f0585367731f634a0c8 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 9 Mar 2008 00:27:20 +0100 Subject: [PATCH 850/923] firewire: update Kconfig help text Remove some less necessary information, point out that video1394 and dv1394 should be blacklisted along with ohci1394. Signed-off-by: Stefan Richter --- drivers/firewire/Kconfig | 50 +++++++++++++++------------------------- 1 file changed, 19 insertions(+), 31 deletions(-) diff --git a/drivers/firewire/Kconfig b/drivers/firewire/Kconfig index fe9e768cfbc..25bdc2dd9ce 100644 --- a/drivers/firewire/Kconfig +++ b/drivers/firewire/Kconfig @@ -1,5 +1,3 @@ -# -*- shell-script -*- - comment "An alternative FireWire stack is available with EXPERIMENTAL=y" depends on EXPERIMENTAL=n @@ -21,27 +19,7 @@ config FIREWIRE NOTE: You should only build ONE of the stacks, unless you REALLY know what - you are doing. If you install both, you should configure them only as - modules rather than link them statically, and you should blacklist one - of the concurrent low-level drivers in /etc/modprobe.conf. Add either - - blacklist firewire-ohci - or - blacklist ohci1394 - - there depending on which driver you DON'T want to have auto-loaded. - You can optionally do the same with the other IEEE 1394/ FireWire - drivers. - - If you have an old modprobe which doesn't implement the blacklist - directive, use either - - install firewire-ohci /bin/true - or - install ohci1394 /bin/true - - and so on, depending on which modules you DON't want to have - auto-loaded. + you are doing. config FIREWIRE_OHCI tristate "Support for OHCI FireWire host controllers" @@ -57,8 +35,24 @@ config FIREWIRE_OHCI NOTE: - If you also build ohci1394 of the classic stack, blacklist either - ohci1394 or firewire-ohci to let hotplug load only the desired driver. + You should only build ohci1394 or firewire-ohci, but not both. + If you nevertheless want to install both, you should configure them + only as modules and blacklist the driver(s) which you don't want to + have auto-loaded. Add either + + blacklist firewire-ohci + or + blacklist ohci1394 + blacklist video1394 + blacklist dv1394 + + to /etc/modprobe.conf or /etc/modprobe.d/* and update modprobe.conf + depending on your distribution. The latter two modules should be + blacklisted together with ohci1394 because they depend on ohci1394. + + If you have an old modprobe which doesn't implement the blacklist + directive, use "install modulename /bin/true" for the modules to be + blacklisted. config FIREWIRE_SBP2 tristate "Support for storage devices (SBP-2 protocol driver)" @@ -75,9 +69,3 @@ config FIREWIRE_SBP2 You should also enable support for disks, CD-ROMs, etc. in the SCSI configuration section. - - NOTE: - - If you also build sbp2 of the classic stack, blacklist either sbp2 - or firewire-sbp2 to let hotplug load only the desired driver. - -- GitLab From 2aa9ff7fc5bc41d4b77c2da02086259a86f3d472 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Tue, 11 Mar 2008 22:32:03 +0100 Subject: [PATCH 851/923] firewire: fw-sbp2: fix for SYM13FW500 bridge (Datafab disk) Fix I/O errors due to SYM13FW500's inability to handle larger request sizes. Reported by Piergiorgio Sartor in https://bugzilla.redhat.com/show_bug.cgi?id=436879 Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-sbp2.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 8bce569a7c5..62b4e47d0cc 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -331,6 +331,11 @@ static const struct { .model = ~0, .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS, }, + /* Datafab MD2-FW2 with Symbios/LSILogic SYM13FW500 bridge */ { + .firmware_revision = 0x002600, + .model = ~0, + .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS, + }, /* * There are iPods (2nd gen, 3rd gen) with model_id == 0, but -- GitLab From 6e45ef4c7aeefbf97df748866cd1b24f73b86160 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Tue, 11 Mar 2008 22:32:52 +0100 Subject: [PATCH 852/923] ieee1394: sbp2: fix for SYM13FW500 bridge (Datafab disk) Fix I/O errors due to SYM13FW500's inability to handle larger request sizes. Reported by Piergiorgio Sartor for firewire-sbp2 in https://bugzilla.redhat.com/show_bug.cgi?id=436879 This fix is necessary because sbp2's default request size limit has been lifted since 2.6.25-rc1. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/ieee1394/sbp2.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index 9e2b1964d71..f53f72daae3 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -376,6 +376,11 @@ static const struct { .model_id = SBP2_ROM_VALUE_WILDCARD, .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS, }, + /* Datafab MD2-FW2 with Symbios/LSILogic SYM13FW500 bridge */ { + .firmware_revision = 0x002600, + .model_id = SBP2_ROM_VALUE_WILDCARD, + .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS, + }, /* iPod 4th generation */ { .firmware_revision = 0x0a2700, .model_id = 0x000021, -- GitLab From bde1709aaa98f5004ab1580842c422be18eb4bc3 Mon Sep 17 00:00:00 2001 From: Jarod Wilson Date: Wed, 12 Mar 2008 17:43:26 -0400 Subject: [PATCH 853/923] firewire: fw-ohci: use dma_alloc_coherent for ar_buffer Currently, we do nothing to guarantee we have a consistent DMA buffer for asynchronous receive packets. Rather than doing several sync's following a dma_map_single() to get consistent buffers, just switch to using dma_alloc_coherent(). Resolves constant buffer failures on my own x86_64 laptop w/4GB of RAM and likely to fix a number of other failures witnessed on x86_64 systems with 4GB of RAM or more. Signed-off-by: Jarod Wilson Signed-off-by: Stefan Richter --- drivers/firewire/fw-ohci.c | 18 +++++------------- 1 file changed, 5 insertions(+), 13 deletions(-) diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index eaa213e2159..fcf59fcae1b 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -284,16 +284,10 @@ static int ar_context_add_page(struct ar_context *ctx) dma_addr_t ab_bus; size_t offset; - ab = (struct ar_buffer *) __get_free_page(GFP_ATOMIC); + ab = dma_alloc_coherent(dev, PAGE_SIZE, &ab_bus, GFP_ATOMIC); if (ab == NULL) return -ENOMEM; - ab_bus = dma_map_single(dev, ab, PAGE_SIZE, DMA_BIDIRECTIONAL); - if (dma_mapping_error(ab_bus)) { - free_page((unsigned long) ab); - return -ENOMEM; - } - memset(&ab->descriptor, 0, sizeof(ab->descriptor)); ab->descriptor.control = cpu_to_le16(DESCRIPTOR_INPUT_MORE | DESCRIPTOR_STATUS | @@ -304,8 +298,6 @@ static int ar_context_add_page(struct ar_context *ctx) ab->descriptor.res_count = cpu_to_le16(PAGE_SIZE - offset); ab->descriptor.branch_address = 0; - dma_sync_single_for_device(dev, ab_bus, PAGE_SIZE, DMA_BIDIRECTIONAL); - ctx->last_buffer->descriptor.branch_address = cpu_to_le32(ab_bus | 1); ctx->last_buffer->next = ab; ctx->last_buffer = ab; @@ -409,6 +401,7 @@ static void ar_context_tasklet(unsigned long data) if (d->res_count == 0) { size_t size, rest, offset; + dma_addr_t buffer_bus; /* * This descriptor is finished and we may have a @@ -417,9 +410,7 @@ static void ar_context_tasklet(unsigned long data) */ offset = offsetof(struct ar_buffer, data); - dma_unmap_single(ohci->card.device, - le32_to_cpu(ab->descriptor.data_address) - offset, - PAGE_SIZE, DMA_BIDIRECTIONAL); + buffer_bus = le32_to_cpu(ab->descriptor.data_address) - offset; buffer = ab; ab = ab->next; @@ -435,7 +426,8 @@ static void ar_context_tasklet(unsigned long data) while (buffer < end) buffer = handle_ar_packet(ctx, buffer); - free_page((unsigned long)buffer); + dma_free_coherent(ohci->card.device, PAGE_SIZE, + buffer, buffer_bus); ar_context_add_page(ctx); } else { buffer = ctx->pointer; -- GitLab From f5101d58afc528c1d0c863fe03cd2d607766c4a1 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Fri, 14 Mar 2008 00:27:49 +0100 Subject: [PATCH 854/923] firewire: fw-ohci: shut up false compiler warning on PPC32 Shut up "may be used uninitialised in this function" warnings due to PPC32's implementation of dma_alloc_coherent(). Signed-off-by: Stefan Richter --- drivers/firewire/fw-ohci.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index fcf59fcae1b..996d61f0d46 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -281,7 +281,7 @@ static int ar_context_add_page(struct ar_context *ctx) { struct device *dev = ctx->ohci->card.device; struct ar_buffer *ab; - dma_addr_t ab_bus; + dma_addr_t uninitialized_var(ab_bus); size_t offset; ab = dma_alloc_coherent(dev, PAGE_SIZE, &ab_bus, GFP_ATOMIC); @@ -536,7 +536,7 @@ static int context_add_buffer(struct context *ctx) { struct descriptor_buffer *desc; - dma_addr_t bus_addr; + dma_addr_t uninitialized_var(bus_addr); int offset; /* @@ -1321,7 +1321,7 @@ ohci_set_config_rom(struct fw_card *card, u32 *config_rom, size_t length) unsigned long flags; int retval = -EBUSY; __be32 *next_config_rom; - dma_addr_t next_config_rom_bus; + dma_addr_t uninitialized_var(next_config_rom_bus); ohci = fw_ohci(card); -- GitLab From 9b89ca7a3847c0d5b1e86e83f4860a866f28a89b Mon Sep 17 00:00:00 2001 From: Marc Dionne Date: Fri, 14 Mar 2008 13:11:29 +0000 Subject: [PATCH 855/923] struct export_operations: adjust comments to match current members The comments in the definition of struct export_operations don't match the current members. Add a comment for the 2 new functions and remove 2 comments for unused ones. Signed-off-by: Marc Dionne Acked-by: David Howells Acked-by: Christoph Hellwig Signed-off-by: Linus Torvalds --- include/linux/exportfs.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h index 51d21413881..adcbb05b120 100644 --- a/include/linux/exportfs.h +++ b/include/linux/exportfs.h @@ -49,11 +49,11 @@ struct fid { /** * struct export_operations - for nfsd to communicate with file systems - * @decode_fh: decode a file handle fragment and return a &struct dentry * @encode_fh: encode a file handle fragment from a dentry + * @fh_to_dentry: find the implied object and get a dentry for it + * @fh_to_parent: find the implied object's parent and get a dentry for it * @get_name: find the name for a given inode in a given directory * @get_parent: find the parent of a given directory - * @get_dentry: find a dentry for the inode given a file handle sub-fragment * * See Documentation/filesystems/Exporting for details on how to use * this interface correctly. -- GitLab From b663c6fd98c9cf586279db03cec3257c413efd00 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Fri, 14 Mar 2008 19:37:11 -0400 Subject: [PATCH 856/923] nfsd: fix oops on access from high-numbered ports This bug was always here, but before my commit 6fa02839bf9412e18e77 ("recheck for secure ports in fh_verify"), it could only be triggered by failure of a kmalloc(). After that commit it could be triggered by a client making a request from a non-reserved port for access to an export marked "secure". (Exports are "secure" by default.) The result is a struct svc_export with a reference count one too low, resulting in likely oopses next time the export is accessed. The reference counting here is not straightforward; a later patch will clean up fh_verify(). Thanks to Lukas Hejtmanek for the bug report and followup. Signed-off-by: J. Bruce Fields Cc: Lukas Hejtmanek Signed-off-by: Linus Torvalds --- fs/nfsd/nfsfh.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c index 1eb771d79cc..3e6b3f41ee1 100644 --- a/fs/nfsd/nfsfh.c +++ b/fs/nfsd/nfsfh.c @@ -232,6 +232,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) fhp->fh_dentry = dentry; fhp->fh_export = exp; nfsd_nr_verified++; + cache_get(&exp->h); } else { /* * just rechecking permissions @@ -241,6 +242,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) dprintk("nfsd: fh_verify - just checking\n"); dentry = fhp->fh_dentry; exp = fhp->fh_export; + cache_get(&exp->h); /* * Set user creds for this exportpoint; necessary even * in the "just checking" case because this may be a @@ -252,8 +254,6 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) if (error) goto out; } - cache_get(&exp->h); - error = nfsd_mode_check(rqstp, dentry->d_inode->i_mode, type); if (error) -- GitLab From 0e1f34833bd9170ccc93ab759e48e695917fa48f Mon Sep 17 00:00:00 2001 From: Hiroshi Shimamoto Date: Mon, 10 Mar 2008 11:01:20 -0700 Subject: [PATCH 857/923] sched: fix race in schedule() Fix a hard to trigger crash seen in the -rt kernel that also affects the vanilla scheduler. There is a race condition between schedule() and some dequeue/enqueue functions; rt_mutex_setprio(), __setscheduler() and sched_move_task(). When scheduling to idle, idle_balance() is called to pull tasks from other busy processor. It might drop the rq lock. It means that those 3 functions encounter on_rq=0 and running=1. The current task should be put when running. Here is a possible scenario: CPU0 CPU1 | schedule() | ->deactivate_task() | ->idle_balance() | -->load_balance_newidle() rt_mutex_setprio() | | --->double_lock_balance() *get lock *rel lock * on_rq=0, ruuning=1 | * sched_class is changed | *rel lock *get lock : | : ->put_prev_task_rt() ->pick_next_task_fair() => panic The current process of CPU1(P1) is scheduling. Deactivated P1, and the scheduler looks for another process on other CPU's runqueue because CPU1 will be idle. idle_balance(), load_balance_newidle() and double_lock_balance() are called and double_lock_balance() could drop the rq lock. On the other hand, CPU0 is trying to boost the priority of P1. The result of boosting only P1's prio and sched_class are changed to RT. The sched entities of P1 and P1's group are never put. It makes cfs_rq invalid, because the cfs_rq has curr and no leaf, but pick_next_task_fair() is called, then the kernel panics. Signed-off-by: Hiroshi Shimamoto Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched.c | 38 ++++++++++++++++---------------------- 1 file changed, 16 insertions(+), 22 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index 1cb53fb1fe3..9df9ba73cb7 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -4268,11 +4268,10 @@ void rt_mutex_setprio(struct task_struct *p, int prio) oldprio = p->prio; on_rq = p->se.on_rq; running = task_current(rq, p); - if (on_rq) { + if (on_rq) dequeue_task(rq, p, 0); - if (running) - p->sched_class->put_prev_task(rq, p); - } + if (running) + p->sched_class->put_prev_task(rq, p); if (rt_prio(prio)) p->sched_class = &rt_sched_class; @@ -4281,10 +4280,9 @@ void rt_mutex_setprio(struct task_struct *p, int prio) p->prio = prio; + if (running) + p->sched_class->set_curr_task(rq); if (on_rq) { - if (running) - p->sched_class->set_curr_task(rq); - enqueue_task(rq, p, 0); check_class_changed(rq, p, prev_class, oldprio, running); @@ -4581,19 +4579,17 @@ recheck: update_rq_clock(rq); on_rq = p->se.on_rq; running = task_current(rq, p); - if (on_rq) { + if (on_rq) deactivate_task(rq, p, 0); - if (running) - p->sched_class->put_prev_task(rq, p); - } + if (running) + p->sched_class->put_prev_task(rq, p); oldprio = p->prio; __setscheduler(rq, p, policy, param->sched_priority); + if (running) + p->sched_class->set_curr_task(rq); if (on_rq) { - if (running) - p->sched_class->set_curr_task(rq); - activate_task(rq, p, 0); check_class_changed(rq, p, prev_class, oldprio, running); @@ -7618,11 +7614,10 @@ void sched_move_task(struct task_struct *tsk) running = task_current(rq, tsk); on_rq = tsk->se.on_rq; - if (on_rq) { + if (on_rq) dequeue_task(rq, tsk, 0); - if (unlikely(running)) - tsk->sched_class->put_prev_task(rq, tsk); - } + if (unlikely(running)) + tsk->sched_class->put_prev_task(rq, tsk); set_task_rq(tsk, task_cpu(tsk)); @@ -7631,11 +7626,10 @@ void sched_move_task(struct task_struct *tsk) tsk->sched_class->moved_group(tsk); #endif - if (on_rq) { - if (unlikely(running)) - tsk->sched_class->set_curr_task(rq); + if (unlikely(running)) + tsk->sched_class->set_curr_task(rq); + if (on_rq) enqueue_task(rq, tsk, 0); - } task_rq_unlock(rq, &flags); } -- GitLab From 3fe69747dab906cd6a8523230276a9820d6a514f Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 14 Mar 2008 20:55:51 +0100 Subject: [PATCH 858/923] sched: min_vruntime fix Current min_vruntime tracking is incorrect and will cause serious problems when we don't run the leftmost task for some reason. min_vruntime does two things; 1) it's used to determine a forward direction when the u64 vruntime wraps, 2) it's used to track the leftmost vruntime to position newly enqueued tasks from. The current logic advances min_vruntime whenever the current task's vruntime advance. Because the current task may pass the leftmost task still waiting we're failing the second goal. This causes new tasks to be placed too far ahead and thus penalizes their runtime. Fix this by making min_vruntime the min_vruntime of the waiting tasks by tracking it in enqueue/dequeue, and compare against current's vruntime to obtain the absolute minimum when placing new tasks. Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 46 +++++++++++++++++++++++++++------------------ 1 file changed, 28 insertions(+), 18 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index e2a53051561..9d003c9d2a4 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -175,8 +175,15 @@ static void __enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se) * Maintain a cache of leftmost tree entries (it is frequently * used): */ - if (leftmost) + if (leftmost) { cfs_rq->rb_leftmost = &se->run_node; + /* + * maintain cfs_rq->min_vruntime to be a monotonic increasing + * value tracking the leftmost vruntime in the tree. + */ + cfs_rq->min_vruntime = + max_vruntime(cfs_rq->min_vruntime, se->vruntime); + } rb_link_node(&se->run_node, parent, link); rb_insert_color(&se->run_node, &cfs_rq->tasks_timeline); @@ -184,8 +191,21 @@ static void __enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se) static void __dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se) { - if (cfs_rq->rb_leftmost == &se->run_node) - cfs_rq->rb_leftmost = rb_next(&se->run_node); + if (cfs_rq->rb_leftmost == &se->run_node) { + struct rb_node *next_node; + struct sched_entity *next; + + next_node = rb_next(&se->run_node); + cfs_rq->rb_leftmost = next_node; + + if (next_node) { + next = rb_entry(next_node, + struct sched_entity, run_node); + cfs_rq->min_vruntime = + max_vruntime(cfs_rq->min_vruntime, + next->vruntime); + } + } rb_erase(&se->run_node, &cfs_rq->tasks_timeline); } @@ -303,7 +323,6 @@ __update_curr(struct cfs_rq *cfs_rq, struct sched_entity *curr, unsigned long delta_exec) { unsigned long delta_exec_weighted; - u64 vruntime; schedstat_set(curr->exec_max, max((u64)delta_exec, curr->exec_max)); @@ -315,19 +334,6 @@ __update_curr(struct cfs_rq *cfs_rq, struct sched_entity *curr, &curr->load); } curr->vruntime += delta_exec_weighted; - - /* - * maintain cfs_rq->min_vruntime to be a monotonic increasing - * value tracking the leftmost vruntime in the tree. - */ - if (first_fair(cfs_rq)) { - vruntime = min_vruntime(curr->vruntime, - __pick_next_entity(cfs_rq)->vruntime); - } else - vruntime = curr->vruntime; - - cfs_rq->min_vruntime = - max_vruntime(cfs_rq->min_vruntime, vruntime); } static void update_curr(struct cfs_rq *cfs_rq) @@ -493,7 +499,11 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int initial) { u64 vruntime; - vruntime = cfs_rq->min_vruntime; + if (first_fair(cfs_rq)) { + vruntime = min_vruntime(cfs_rq->min_vruntime, + __pick_next_entity(cfs_rq)->vruntime); + } else + vruntime = cfs_rq->min_vruntime; if (sched_feat(TREE_AVG)) { struct sched_entity *last = __pick_last_entity(cfs_rq); -- GitLab From e89996ae3f9e88d4fd75751a15c10b19d197e702 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 14 Mar 2008 23:48:28 +0100 Subject: [PATCH 859/923] sched: fix update_load_add()/sub() Clear the cached inverse value when updating load. This is needed for calc_delta_mine() to work correctly when using the rq load. Signed-off-by: Ingo Molnar Signed-off-by: Peter Zijlstra --- kernel/sched.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/sched.c b/kernel/sched.c index 9df9ba73cb7..3a4ba3dc0f4 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -1108,11 +1108,13 @@ calc_delta_fair(unsigned long delta_exec, struct load_weight *lw) static inline void update_load_add(struct load_weight *lw, unsigned long inc) { lw->weight += inc; + lw->inv_weight = 0; } static inline void update_load_sub(struct load_weight *lw, unsigned long dec) { lw->weight -= dec; + lw->inv_weight = 0; } /* -- GitLab From 27d117266097101dcf79c4576903cdcdd0eabffc Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 14 Mar 2008 22:20:01 +0100 Subject: [PATCH 860/923] sched: fix calc_delta_mine() lw->weight can be 0 for a short time during bootup. Signed-off-by: Ingo Molnar Signed-off-by: Peter Zijlstra --- kernel/sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched.c b/kernel/sched.c index 3a4ba3dc0f4..6b06f23261c 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -1084,7 +1084,7 @@ calc_delta_mine(unsigned long delta_exec, unsigned long weight, u64 tmp; if (unlikely(!lw->inv_weight)) - lw->inv_weight = (WMULT_CONST - lw->weight/2) / lw->weight + 1; + lw->inv_weight = (WMULT_CONST-lw->weight/2) / (lw->weight+1); tmp = (u64)delta_exec * weight; /* -- GitLab From aa2ac25229cd4d0280f6174c42712744ad61b140 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 14 Mar 2008 21:12:12 +0100 Subject: [PATCH 861/923] sched: fix overload performance: buddy wakeups Currently we schedule to the leftmost task in the runqueue. When the runtimes are very short because of some server/client ping-pong, especially in over-saturated workloads, this will cycle through all tasks trashing the cache. Reduce cache trashing by keeping dependent tasks together by running newly woken tasks first. However, by not running the leftmost task first we could starve tasks because the wakee can gain unlimited runtime. Therefore we only run the wakee if its within a small (wakeup_granularity) window of the leftmost task. This preserves fairness, but does alternate server/client task groups. Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched.c | 2 +- kernel/sched_fair.c | 26 ++++++++++++++++++++++++++ 2 files changed, 27 insertions(+), 1 deletion(-) diff --git a/kernel/sched.c b/kernel/sched.c index 6b06f23261c..d1ad69b270c 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -301,7 +301,7 @@ struct cfs_rq { /* 'curr' points to currently running entity on this cfs_rq. * It is set to NULL otherwise (i.e when none are currently running). */ - struct sched_entity *curr; + struct sched_entity *curr, *next; unsigned long nr_spread_over; diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 9d003c9d2a4..31c4a2988b6 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -207,6 +207,9 @@ static void __dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se) } } + if (cfs_rq->next == se) + cfs_rq->next = NULL; + rb_erase(&se->run_node, &cfs_rq->tasks_timeline); } @@ -626,12 +629,32 @@ set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se) se->prev_sum_exec_runtime = se->sum_exec_runtime; } +static struct sched_entity * +pick_next(struct cfs_rq *cfs_rq, struct sched_entity *se) +{ + s64 diff, gran; + + if (!cfs_rq->next) + return se; + + diff = cfs_rq->next->vruntime - se->vruntime; + if (diff < 0) + return se; + + gran = calc_delta_fair(sysctl_sched_wakeup_granularity, &cfs_rq->load); + if (diff > gran) + return se; + + return cfs_rq->next; +} + static struct sched_entity *pick_next_entity(struct cfs_rq *cfs_rq) { struct sched_entity *se = NULL; if (first_fair(cfs_rq)) { se = __pick_next_entity(cfs_rq); + se = pick_next(cfs_rq, se); set_next_entity(cfs_rq, se); } @@ -1070,6 +1093,9 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p) resched_task(curr); return; } + + cfs_rq_of(pse)->next = pse; + /* * Batch tasks do not preempt (their preemption is driven by * the tick): -- GitLab From e22ecef1d2658ba54ed7d3fdb5d60829fb434c23 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 14 Mar 2008 22:16:08 +0100 Subject: [PATCH 862/923] sched: fix fair sleepers Fair sleepers need to scale their latency target down by runqueue weight. Otherwise busy systems will gain ever larger sleep bonus. Signed-off-by: Ingo Molnar Signed-off-by: Peter Zijlstra --- kernel/sched_fair.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 31c4a2988b6..31aa1b9fa76 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -528,8 +528,10 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int initial) if (!initial) { /* sleeps upto a single latency don't count. */ - if (sched_feat(NEW_FAIR_SLEEPERS)) - vruntime -= sysctl_sched_latency; + if (sched_feat(NEW_FAIR_SLEEPERS)) { + vruntime -= calc_delta_fair(sysctl_sched_latency, + &cfs_rq->load); + } /* ensure we never gain time by being placed backwards. */ vruntime = max_vruntime(se->vruntime, vruntime); -- GitLab From 6a6029b8cefe0ca7e82f27f3904dbedba3de4e06 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 14 Mar 2008 22:17:08 +0100 Subject: [PATCH 863/923] sched: simplify sched_slice() Use the existing calc_delta_mine() calculation for sched_slice(). This saves a divide and simplifies the code because we share it with the other /cfs_rq->load users. It also improves code size: text data bss dec hex filename 42659 2740 144 45543 b1e7 sched.o.before 42093 2740 144 44977 afb1 sched.o.after Signed-off-by: Ingo Molnar Signed-off-by: Peter Zijlstra --- kernel/sched_fair.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 31aa1b9fa76..f2cc59080ef 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -283,12 +283,8 @@ static u64 __sched_period(unsigned long nr_running) */ static u64 sched_slice(struct cfs_rq *cfs_rq, struct sched_entity *se) { - u64 slice = __sched_period(cfs_rq->nr_running); - - slice *= se->load.weight; - do_div(slice, cfs_rq->load.weight); - - return slice; + return calc_delta_mine(__sched_period(cfs_rq->nr_running), + se->load.weight, &cfs_rq->load); } /* -- GitLab From ce636452343af0522d2666157dab9c2096f4f996 Mon Sep 17 00:00:00 2001 From: Roel Kluin <12o3l@tiscali.nl> Date: Sat, 15 Mar 2008 16:00:38 +0100 Subject: [PATCH 864/923] tifm_sd: DATA_CARRY is not boolean in tifm_sd_transfer_data() DATA_CARRY is not boolean Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Pierre Ossman Signed-off-by: Linus Torvalds --- drivers/mmc/host/tifm_sd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c index 20d5c7bd940..1c14a186f00 100644 --- a/drivers/mmc/host/tifm_sd.c +++ b/drivers/mmc/host/tifm_sd.c @@ -180,7 +180,7 @@ static void tifm_sd_transfer_data(struct tifm_sd *host) host->sg_pos++; if (host->sg_pos == host->sg_len) { if ((r_data->flags & MMC_DATA_WRITE) - && DATA_CARRY) + && (host->cmd_flags & DATA_CARRY)) writel(host->bounce_buf_data[0], host->dev->addr + SOCK_MMCSD_DATA); -- GitLab From 9a9e0d685553af76cb6ae2af93cca4913e7fcd47 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 15 Mar 2008 11:53:32 -0700 Subject: [PATCH 865/923] ACPI: Remove ACPI_CUSTOM_DSDT_INITRD option This essentially reverts commit 71fc47a9adf8ee89e5c96a47222915c5485ac437 ("ACPI: basic initramfs DSDT override support"), because the code simply isn't ready. It did ugly things to the init sequence to populate the rootfs image early, but that just ended up showing other problems with the whole approach. The fact is, the VFS layer simply isn't initialized this early, and the relevant ACPI code should either run much later, or this shouldn't be done at all. For 2.6.25, we'll just pick the latter option. We can revisit this concept later if necessary. Cc: Dave Hansen Cc: Tilman Schmidt Cc: Andrew Morton Cc: Thomas Renninger Cc: Eric Piel Cc: Len Brown Cc: Christoph Hellwig Cc: Markus Gaugusch Signed-off-by: Linus Torvalds --- Documentation/acpi/dsdt-override.txt | 12 +--- Documentation/acpi/initramfs-add-dsdt.sh | 43 ------------ Documentation/kernel-parameters.txt | 3 - drivers/acpi/Kconfig | 11 ---- drivers/acpi/osl.c | 84 ------------------------ init/initramfs.c | 8 +-- init/main.c | 7 -- 7 files changed, 3 insertions(+), 165 deletions(-) delete mode 100755 Documentation/acpi/initramfs-add-dsdt.sh diff --git a/Documentation/acpi/dsdt-override.txt b/Documentation/acpi/dsdt-override.txt index 5008f256a2d..febbb1ba4d2 100644 --- a/Documentation/acpi/dsdt-override.txt +++ b/Documentation/acpi/dsdt-override.txt @@ -1,15 +1,7 @@ -Linux supports two methods of overriding the BIOS DSDT: +Linux supports a method of overriding the BIOS DSDT: CONFIG_ACPI_CUSTOM_DSDT builds the image into the kernel. -CONFIG_ACPI_CUSTOM_DSDT_INITRD adds the image to the initrd. - -When to use these methods is described in detail on the +When to use this method is described in detail on the Linux/ACPI home page: http://www.lesswatts.org/projects/acpi/overridingDSDT.php - -Note that if both options are used, the DSDT supplied -by the INITRD method takes precedence. - -Documentation/initramfs-add-dsdt.sh is provided for convenience -for use with the CONFIG_ACPI_CUSTOM_DSDT_INITRD method. diff --git a/Documentation/acpi/initramfs-add-dsdt.sh b/Documentation/acpi/initramfs-add-dsdt.sh deleted file mode 100755 index 17ef6e838e1..00000000000 --- a/Documentation/acpi/initramfs-add-dsdt.sh +++ /dev/null @@ -1,43 +0,0 @@ -#!/bin/bash -# Adds a DSDT file to the initrd (if it's an initramfs) -# first argument is the name of archive -# second argument is the name of the file to add -# The file will be copied as /DSDT.aml - -# 20060126: fix "Premature end of file" with some old cpio (Roland Robic) -# 20060205: this time it should really work - -# check the arguments -if [ $# -ne 2 ]; then - program_name=$(basename $0) - echo "\ -$program_name: too few arguments -Usage: $program_name initrd-name.img DSDT-to-add.aml -Adds a DSDT file to an initrd (in initramfs format) - - initrd-name.img: filename of the initrd in initramfs format - DSDT-to-add.aml: filename of the DSDT file to add - " 1>&2 - exit 1 -fi - -# we should check it's an initramfs - -tempcpio=$(mktemp -d) -# cleanup on exit, hangup, interrupt, quit, termination -trap 'rm -rf $tempcpio' 0 1 2 3 15 - -# extract the archive -gunzip -c "$1" > "$tempcpio"/initramfs.cpio || exit 1 - -# copy the DSDT file at the root of the directory so that we can call it "/DSDT.aml" -cp -f "$2" "$tempcpio"/DSDT.aml - -# add the file -cd "$tempcpio" -(echo DSDT.aml | cpio --quiet -H newc -o -A -O "$tempcpio"/initramfs.cpio) || exit 1 -cd "$OLDPWD" - -# re-compress the archive -gzip -c "$tempcpio"/initramfs.cpio > "$1" - diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 49318b99e58..622f7849edb 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -177,9 +177,6 @@ and is between 256 and 4096 characters. It is defined in the file acpi_no_auto_ssdt [HW,ACPI] Disable automatic loading of SSDT - acpi_no_initrd_override [KNL,ACPI] - Disable loading custom ACPI tables from the initramfs - acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS Format: To spoof as Windows 98: ="Microsoft Windows" diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index fbcaa069be8..b4f5e854282 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -300,17 +300,6 @@ config ACPI_CUSTOM_DSDT bool default ACPI_CUSTOM_DSDT_FILE != "" -config ACPI_CUSTOM_DSDT_INITRD - bool "Read Custom DSDT from initramfs" - depends on BLK_DEV_INITRD - default n - help - This option supports a custom DSDT by optionally loading it from initrd. - See Documentation/acpi/dsdt-override.txt - - If you are not using this feature now, but may use it later, - it is safe to say Y here. - config ACPI_BLACKLIST_YEAR int "Disable ACPI for systems before Jan 1st this year" if X86_32 default 0 diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 065819ba87c..a697fb6cf05 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -91,10 +91,6 @@ static DEFINE_SPINLOCK(acpi_res_lock); #define OSI_STRING_LENGTH_MAX 64 /* arbitrary */ static char osi_additional_string[OSI_STRING_LENGTH_MAX]; -#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD -static int acpi_no_initrd_override; -#endif - /* * "Ode to _OSI(Linux)" * @@ -324,67 +320,6 @@ acpi_os_predefined_override(const struct acpi_predefined_names *init_val, return AE_OK; } -#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD -static struct acpi_table_header *acpi_find_dsdt_initrd(void) -{ - struct file *firmware_file; - mm_segment_t oldfs; - unsigned long len, len2; - struct acpi_table_header *dsdt_buffer, *ret = NULL; - struct kstat stat; - char *ramfs_dsdt_name = "/DSDT.aml"; - - printk(KERN_INFO PREFIX "Checking initramfs for custom DSDT\n"); - - /* - * Never do this at home, only the user-space is allowed to open a file. - * The clean way would be to use the firmware loader. - * But this code must be run before there is any userspace available. - * A static/init firmware infrastructure doesn't exist yet... - */ - if (vfs_stat(ramfs_dsdt_name, &stat) < 0) - return ret; - - len = stat.size; - /* check especially against empty files */ - if (len <= 4) { - printk(KERN_ERR PREFIX "Failed: DSDT only %lu bytes.\n", len); - return ret; - } - - firmware_file = filp_open(ramfs_dsdt_name, O_RDONLY, 0); - if (IS_ERR(firmware_file)) { - printk(KERN_ERR PREFIX "Failed to open %s.\n", ramfs_dsdt_name); - return ret; - } - - dsdt_buffer = kmalloc(len, GFP_ATOMIC); - if (!dsdt_buffer) { - printk(KERN_ERR PREFIX "Failed to allocate %lu bytes.\n", len); - goto err; - } - - oldfs = get_fs(); - set_fs(KERNEL_DS); - len2 = vfs_read(firmware_file, (char __user *)dsdt_buffer, len, - &firmware_file->f_pos); - set_fs(oldfs); - if (len2 < len) { - printk(KERN_ERR PREFIX "Failed to read %lu bytes from %s.\n", - len, ramfs_dsdt_name); - ACPI_FREE(dsdt_buffer); - goto err; - } - - printk(KERN_INFO PREFIX "Found %lu byte DSDT in %s.\n", - len, ramfs_dsdt_name); - ret = dsdt_buffer; -err: - filp_close(firmware_file, NULL); - return ret; -} -#endif - acpi_status acpi_os_table_override(struct acpi_table_header * existing_table, struct acpi_table_header ** new_table) @@ -397,16 +332,6 @@ acpi_os_table_override(struct acpi_table_header * existing_table, #ifdef CONFIG_ACPI_CUSTOM_DSDT if (strncmp(existing_table->signature, "DSDT", 4) == 0) *new_table = (struct acpi_table_header *)AmlCode; -#endif -#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD - if ((strncmp(existing_table->signature, "DSDT", 4) == 0) && - !acpi_no_initrd_override) { - struct acpi_table_header *initrd_table; - - initrd_table = acpi_find_dsdt_initrd(); - if (initrd_table) - *new_table = initrd_table; - } #endif if (*new_table != NULL) { printk(KERN_WARNING PREFIX "Override [%4.4s-%8.8s], " @@ -418,15 +343,6 @@ acpi_os_table_override(struct acpi_table_header * existing_table, return AE_OK; } -#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD -static int __init acpi_no_initrd_override_setup(char *s) -{ - acpi_no_initrd_override = 1; - return 1; -} -__setup("acpi_no_initrd_override", acpi_no_initrd_override_setup); -#endif - static irqreturn_t acpi_irq(int irq, void *dev_id) { u32 handled; diff --git a/init/initramfs.c b/init/initramfs.c index c0b1e0533d8..d53fee8d860 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -538,7 +538,7 @@ skip: initrd_end = 0; } -int __init populate_rootfs(void) +static int __init populate_rootfs(void) { char *err = unpack_to_rootfs(__initramfs_start, __initramfs_end - __initramfs_start, 0); @@ -577,10 +577,4 @@ int __init populate_rootfs(void) } return 0; } -#ifndef CONFIG_ACPI_CUSTOM_DSDT_INITRD -/* - * if this option is enabled, populate_rootfs() is called _earlier_ in the - * boot sequence. This insures that the ACPI initialisation can find the file. - */ rootfs_initcall(populate_rootfs); -#endif diff --git a/init/main.c b/init/main.c index fbb0167c6b8..99ce94930b0 100644 --- a/init/main.c +++ b/init/main.c @@ -102,12 +102,6 @@ static inline void mark_rodata_ro(void) { } extern void tc_init(void); #endif -#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD -extern int populate_rootfs(void); -#else -static inline void populate_rootfs(void) {} -#endif - enum system_states system_state; EXPORT_SYMBOL(system_state); @@ -650,7 +644,6 @@ asmlinkage void __init start_kernel(void) check_bugs(); - populate_rootfs(); /* For DSDT override from initramfs */ acpi_early_init(); /* before LAPIC and SMP init */ /* Do the rest non-__init'ed, we're now alive */ -- GitLab From 0cb845ec3719c4cc13cedb3f86002c37c50aff0a Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 18 Feb 2008 13:57:26 -0800 Subject: [PATCH 866/923] [PARISC] remove old timerfd syscall Signed-off-by: Kyle McMartin --- arch/parisc/kernel/syscall_table.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index 117438e9eb2..3a1dd22e813 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -401,7 +401,7 @@ ENTRY_COMP(kexec_load) /* 300 */ ENTRY_COMP(utimensat) ENTRY_COMP(signalfd) - ENTRY_COMP(timerfd) + ENTRY_SAME(ni_syscall) /* was timerfd */ ENTRY_SAME(eventfd) ENTRY_COMP(fallocate) /* 305 */ -- GitLab From ff80c66ab637df825122558d1f3f3cbdd830f962 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 18 Feb 2008 14:00:18 -0800 Subject: [PATCH 867/923] [PARISC] wire up timerfd syscalls Signed-off-by: Kyle McMartin --- arch/parisc/kernel/syscall_table.S | 3 +++ include/asm-parisc/unistd.h | 3 +++ 2 files changed, 6 insertions(+) diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index 3a1dd22e813..6b5ac38f5a9 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -404,6 +404,9 @@ ENTRY_SAME(ni_syscall) /* was timerfd */ ENTRY_SAME(eventfd) ENTRY_COMP(fallocate) /* 305 */ + ENTRY_SAME(timerfd_create) + ENTRY_COMP(timerfd_settime) + ENTRY_COMP(timerfd_gettime) /* Nothing yet */ diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h index 081b4ae6186..f74d207c76d 100644 --- a/include/asm-parisc/unistd.h +++ b/include/asm-parisc/unistd.h @@ -798,6 +798,9 @@ #define __NR_timerfd (__NR_Linux + 303) #define __NR_eventfd (__NR_Linux + 304) #define __NR_fallocate (__NR_Linux + 305) +#define __NR_timerfd_create (__NR_Linux + 306) +#define __NR_timerfd_settime (__NR_Linux + 307) +#define __NR_timerfd_gettime (__NR_Linux + 308) #define __NR_Linux_syscalls (__NR_fallocate + 1) -- GitLab From d912e1dc8bb5718c3603beb43d0770dac0271374 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 18 Feb 2008 14:13:43 -0800 Subject: [PATCH 868/923] [PARISC] move VMALLOC_* definitions to fixmap.h They make way more sense here, really... Signed-off-by: Kyle McMartin --- include/asm-parisc/fixmap.h | 9 ++++++++- include/asm-parisc/pgtable.h | 8 -------- 2 files changed, 8 insertions(+), 9 deletions(-) diff --git a/include/asm-parisc/fixmap.h b/include/asm-parisc/fixmap.h index a5caf4b122b..de3fe3a1822 100644 --- a/include/asm-parisc/fixmap.h +++ b/include/asm-parisc/fixmap.h @@ -20,4 +20,11 @@ #define KERNEL_MAP_START (GATEWAY_PAGE_SIZE) #define KERNEL_MAP_END (TMPALIAS_MAP_START) -#endif +#ifndef __ASSEMBLY__ +extern void *vmalloc_start; +#define PCXL_DMA_MAP_SIZE (8*1024*1024) +#define VMALLOC_START ((unsigned long)vmalloc_start) +#define VMALLOC_END (KERNEL_MAP_END) +#endif /*__ASSEMBLY__*/ + +#endif /*_ASM_FIXMAP_H*/ diff --git a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h index cd0fa4f7332..dc86adbec91 100644 --- a/include/asm-parisc/pgtable.h +++ b/include/asm-parisc/pgtable.h @@ -116,14 +116,6 @@ #define FIRST_USER_ADDRESS 0 -#ifndef __ASSEMBLY__ -extern void *vmalloc_start; -#define PCXL_DMA_MAP_SIZE (8*1024*1024) -#define VMALLOC_START ((unsigned long)vmalloc_start) -/* this is a fixmap remnant, see fixmap.h */ -#define VMALLOC_END (KERNEL_MAP_END) -#endif - /* NB: The tlb miss handlers make certain assumptions about the order */ /* of the following bits, so be careful (One example, bits 25-31 */ /* are moved together in one instruction). */ -- GitLab From 9aa150b8d8af2532b6ce9ea36374cb997ac55807 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 18 Feb 2008 14:16:26 -0800 Subject: [PATCH 869/923] [PARISC] unbreak pgalloc.h Commit 2f569afd9ced9ebec9a6eb3dbf6f83429be0a7b4 broke the compile rather spectacularly. Fix code errors. Signed-off-by: Kyle McMartin --- include/asm-parisc/pgalloc.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/asm-parisc/pgalloc.h b/include/asm-parisc/pgalloc.h index 3996dfc30a3..fc987a1c12a 100644 --- a/include/asm-parisc/pgalloc.h +++ b/include/asm-parisc/pgalloc.h @@ -138,10 +138,10 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) free_page((unsigned long)pte); } -static inline void pte_free_kernel(struct mm_struct *mm, struct page *pte) +static inline void pte_free(struct mm_struct *mm, struct page *pte) { pgtable_page_dtor(pte); - pte_free_kernel(page_address((pte)); + pte_free_kernel(mm, page_address(pte)); } #define check_pgt_cache() do { } while (0) -- GitLab From e2be75ae21ea13ca19d4f2c3ff5a8df3f0e6c38e Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 18 Feb 2008 14:21:17 -0800 Subject: [PATCH 870/923] [PARISC] bump __NR_syscalls oops, forgot this in the previous commit. Signed-off-by: Kyle McMartin --- include/asm-parisc/unistd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h index f74d207c76d..a7d857f0e4f 100644 --- a/include/asm-parisc/unistd.h +++ b/include/asm-parisc/unistd.h @@ -802,7 +802,7 @@ #define __NR_timerfd_settime (__NR_Linux + 307) #define __NR_timerfd_gettime (__NR_Linux + 308) -#define __NR_Linux_syscalls (__NR_fallocate + 1) +#define __NR_Linux_syscalls (__NR_timerfd_gettime + 1) #define __IGNORE_select /* newselect */ -- GitLab From 179183bf1fcff3830f0c05058ec0fc4d0878c67c Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 18 Feb 2008 14:26:41 -0800 Subject: [PATCH 871/923] [PARISC] remove unused pdc_iodc_printf function Signed-off-by: Kyle McMartin --- arch/parisc/kernel/pdc_cons.c | 13 ------------- include/asm-parisc/pdc.h | 1 - 2 files changed, 14 deletions(-) diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index 33b1f84441b..e7afc899d71 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -58,19 +58,6 @@ static void pdc_console_write(struct console *co, const char *s, unsigned count) pdc_iodc_print(s, count); } -void pdc_printf(const char *fmt, ...) -{ - va_list args; - char buf[1024]; - int i, len; - - va_start(args, fmt); - len = vscnprintf(buf, sizeof(buf), fmt, args); - va_end(args); - - pdc_iodc_print(buf, len); -} - int pdc_console_poll_key(struct console *co) { return pdc_iodc_getc(); diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h index deda8c31137..b340c42f6bb 100644 --- a/include/asm-parisc/pdc.h +++ b/include/asm-parisc/pdc.h @@ -646,7 +646,6 @@ void pdc_io_reset(void); void pdc_io_reset_devices(void); int pdc_iodc_getc(void); int pdc_iodc_print(unsigned char *str, unsigned count); -void pdc_printf(const char *fmt, ...); void pdc_emergency_unlock(void); int pdc_sti_call(unsigned long func, unsigned long flags, -- GitLab From ff451d70593040df1a7c3df80a38e9ce530e12e0 Mon Sep 17 00:00:00 2001 From: Joel Soete Date: Mon, 18 Feb 2008 18:26:11 -0800 Subject: [PATCH 872/923] [PARISC] pdc_stable: fix compile errors Signed-off-by: Joel Soete Signed-off-by: Kyle McMartin --- drivers/parisc/pdc_stable.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c index de34aa9d313..f9f9a5f1bbd 100644 --- a/drivers/parisc/pdc_stable.c +++ b/drivers/parisc/pdc_stable.c @@ -829,7 +829,7 @@ static ssize_t pdcs_autoboot_write(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { - return pdcs_auto_write(kset, attr, buf, count, PF_AUTOBOOT); + return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOBOOT); } /** @@ -845,7 +845,7 @@ static ssize_t pdcs_autosearch_write(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { - return pdcs_auto_write(kset, attr, buf, count, PF_AUTOSEARCH); + return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOSEARCH); } /** @@ -1066,7 +1066,7 @@ pdc_stable_init(void) } /* Don't forget the root entries */ - error = sysfs_create_group(stable_kobj, pdcs_attr_group); + error = sysfs_create_group(stable_kobj, &pdcs_attr_group); /* register the paths kset as a child of the stable kset */ paths_kset = kset_create_and_add("paths", NULL, stable_kobj); -- GitLab From d0347b49c9a877a33c59f80de1a9dbabd5244205 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 18 Feb 2008 23:26:46 -0800 Subject: [PATCH 873/923] [PARISC] dump_stack in show_regs Originally, show_stack was used in BUG() output. However, a recent commit changed it to print register state (no idea what that's supposed to help, really...) and parisc was missing a backtrace because of it. Signed-off-by: Kyle McMartin --- arch/parisc/kernel/traps.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index 99fd56939af..ce48c53fd27 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -148,6 +148,8 @@ void show_regs(struct pt_regs *regs) print_symbol(" IAOQ[1]: %s\n", regs->iaoq[1]); printk(level); print_symbol(" RP(r2): %s\n", regs->gr[2]); + + dump_stack(); } -- GitLab From ef1afd4d79f0479960ff36bb5fe6ec6eba1ebff2 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 18 Feb 2008 23:34:34 -0800 Subject: [PATCH 874/923] [PARISC] pdc_console: fix bizarre panic on boot Commit 721fdf34167580ff98263c74cead8871d76936e6 introduced a subtle bug by accidently removing the "static" from iodc_dbuf. This resulted in, what appeared to be, a trap without *current set to a task. Probably the result of a trap in real mode while calling firmware. Also do other misc clean ups. Since the only input from firmware is non blocking, share iodc_dbuf between input and output, and spinlock the only callers. Signed-off-by: Kyle McMartin --- arch/parisc/kernel/firmware.c | 27 +++++++++++++++++---------- arch/parisc/kernel/pdc_cons.c | 19 +++++++++++++++++-- include/asm-parisc/pdc.h | 2 +- 3 files changed, 35 insertions(+), 13 deletions(-) diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c index 4ab83d56974..7177a6cd1b7 100644 --- a/arch/parisc/kernel/firmware.c +++ b/arch/parisc/kernel/firmware.c @@ -1080,6 +1080,9 @@ void pdc_io_reset_devices(void) spin_unlock_irqrestore(&pdc_lock, flags); } +/* locked by pdc_console_lock */ +static int __attribute__((aligned(8))) iodc_retbuf[32]; +static char __attribute__((aligned(64))) iodc_dbuf[4096]; /** * pdc_iodc_print - Console print using IODC. @@ -1091,24 +1094,20 @@ void pdc_io_reset_devices(void) * Since the HP console requires CR+LF to perform a 'newline', we translate * "\n" to "\r\n". */ -int pdc_iodc_print(unsigned char *str, unsigned count) +int pdc_iodc_print(const unsigned char *str, unsigned count) { - /* XXX Should we spinlock posx usage */ static int posx; /* for simple TAB-Simulation... */ - int __attribute__((aligned(8))) iodc_retbuf[32]; - char __attribute__((aligned(64))) iodc_dbuf[4096]; unsigned int i; unsigned long flags; - memset(iodc_dbuf, 0, 4096); - for (i = 0; i < count && i < 2048;) { + for (i = 0; i < count && i < 79;) { switch(str[i]) { case '\n': iodc_dbuf[i+0] = '\r'; iodc_dbuf[i+1] = '\n'; i += 2; posx = 0; - break; + goto print; case '\t': while (posx & 7) { iodc_dbuf[i] = ' '; @@ -1124,6 +1123,16 @@ int pdc_iodc_print(unsigned char *str, unsigned count) } } + /* if we're at the end of line, and not already inserting a newline, + * insert one anyway. iodc console doesn't claim to support >79 char + * lines. don't account for this in the return value. + */ + if (i == 79 && iodc_dbuf[i-1] != '\n') { + iodc_dbuf[i+0] = '\r'; + iodc_dbuf[i+1] = '\n'; + } + +print: spin_lock_irqsave(&pdc_lock, flags); real32_call(PAGE0->mem_cons.iodc_io, (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT, @@ -1142,11 +1151,9 @@ int pdc_iodc_print(unsigned char *str, unsigned count) */ int pdc_iodc_getc(void) { - unsigned long flags; - static int __attribute__((aligned(8))) iodc_retbuf[32]; - static char __attribute__((aligned(64))) iodc_dbuf[4096]; int ch; int status; + unsigned long flags; /* Bail if no console input device. */ if (!PAGE0->mem_kbd.iodc_io) diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index e7afc899d71..ccb68090781 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -52,15 +52,30 @@ #include #include /* for iodc_call() proto and friends */ +static spinlock_t pdc_console_lock = SPIN_LOCK_UNLOCKED; static void pdc_console_write(struct console *co, const char *s, unsigned count) { - pdc_iodc_print(s, count); + int i = 0; + unsigned long flags; + + spin_lock_irqsave(&pdc_console_lock, flags); + do { + i += pdc_iodc_print(s + i, count - i); + } while (i < count); + spin_unlock_irqrestore(&pdc_console_lock, flags); } int pdc_console_poll_key(struct console *co) { - return pdc_iodc_getc(); + int c; + unsigned long flags; + + spin_lock_irqsave(&pdc_console_lock, flags); + c = pdc_iodc_getc(); + spin_unlock_irqrestore(&pdc_console_lock, flags); + + return c; } static int pdc_console_setup(struct console *co, char *options) diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h index b340c42f6bb..9eaa794c3e4 100644 --- a/include/asm-parisc/pdc.h +++ b/include/asm-parisc/pdc.h @@ -645,7 +645,7 @@ int pdc_soft_power_button(int sw_control); void pdc_io_reset(void); void pdc_io_reset_devices(void); int pdc_iodc_getc(void); -int pdc_iodc_print(unsigned char *str, unsigned count); +int pdc_iodc_print(const unsigned char *str, unsigned count); void pdc_emergency_unlock(void); int pdc_sti_call(unsigned long func, unsigned long flags, -- GitLab From 2f39d51981e20d4c81d9b2d374ae823f591c6407 Mon Sep 17 00:00:00 2001 From: Thibaut VARENE Date: Wed, 20 Feb 2008 21:05:56 +0100 Subject: [PATCH 875/923] [PARISC] add back AD1889 MAINTAINERS entry Signed-off-by: Thibaut VARENE Signed-off-by: Kyle McMartin --- MAINTAINERS | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 558636e3a95..fd2dec1ac46 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -266,6 +266,15 @@ L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ S: Maintained +AD1889 ALSA SOUND DRIVER +P: Kyle McMartin +M: kyle@parisc-linux.org +P: Thibaut Varene +M: T-Bone@parisc-linux.org +W: http://wiki.parisc-linux.org/AD1889 +L: linux-parisc@vger.kernel.org +S: Maintained + ADM1025 HARDWARE MONITOR DRIVER P: Jean Delvare M: khali@linux-fr.org -- GitLab From c04f7ae2dab9f934a41901b093b6b928f11ccd56 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 26 Feb 2008 21:55:17 +0200 Subject: [PATCH 876/923] [PARISC] move defconfig to arch/parisc/configs/ This patch moves the default parisc defconfig to arch/parisc/configs/generic_defconfig where it belongs and selects it as the default defconfig through KBUILD_DEFCONFIG. Signed-off-by: Adrian Bunk Signed-off-by: Kyle McMartin --- arch/parisc/Makefile | 3 +++ arch/parisc/{defconfig => configs/default_defconfig} | 0 2 files changed, 3 insertions(+) rename arch/parisc/{defconfig => configs/default_defconfig} (100%) diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index e574de4efb3..5ddad7bd60a 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -16,6 +16,9 @@ # Modified for PA-RISC Linux by Paul Lahaie, Alex deVries, # Mike Shaver, Helge Deller and Martin K. Petersen # + +KBUILD_DEFCONFIG := default_defconfig + NM = sh $(srctree)/arch/parisc/nm CHECKFLAGS += -D__hppa__=1 diff --git a/arch/parisc/defconfig b/arch/parisc/configs/default_defconfig similarity index 100% rename from arch/parisc/defconfig rename to arch/parisc/configs/default_defconfig -- GitLab From fd5d3f6a32984ea6cd551030b82fb44a43197ba0 Mon Sep 17 00:00:00 2001 From: Randolph Chung Date: Sun, 24 Feb 2008 10:44:21 -0800 Subject: [PATCH 877/923] [PARISC] clean up include/asm-parisc/elf.h Cleanup some cruft. No functionality changes. Signed-off-by: Randolph Chung Signed-off-by: Kyle McMartin --- include/asm-parisc/elf.h | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/include/asm-parisc/elf.h b/include/asm-parisc/elf.h index ce0c0d844c7..d0a4a826281 100644 --- a/include/asm-parisc/elf.h +++ b/include/asm-parisc/elf.h @@ -204,7 +204,7 @@ typedef struct elf64_fdesc { /* * The following definitions are those for 32-bit ELF binaries on a 32-bit * kernel and for 64-bit binaries on a 64-bit kernel. To run 32-bit binaries - * on a 64-bit kernel, arch/parisc64/kernel/binfmt_elf32.c defines these + * on a 64-bit kernel, arch/parisc/kernel/binfmt_elf32.c defines these * macros appropriately and then #includes binfmt_elf.c, which then includes * this file. */ @@ -216,26 +216,25 @@ typedef struct elf64_fdesc { * Note that this header file is used by default in fs/binfmt_elf.c. So * the following macros are for the default case. However, for the 64 * bit kernel we also support 32 bit parisc binaries. To do that - * arch/parisc64/kernel/binfmt_elf32.c defines its own set of these + * arch/parisc/kernel/binfmt_elf32.c defines its own set of these * macros, and then it includes fs/binfmt_elf.c to provide an alternate * elf binary handler for 32 bit binaries (on the 64 bit kernel). */ #ifdef CONFIG_64BIT -#define ELF_CLASS ELFCLASS64 +#define ELF_CLASS ELFCLASS64 #else #define ELF_CLASS ELFCLASS32 #endif typedef unsigned long elf_greg_t; -/* This yields a string that ld.so will use to load implementation - specific libraries for optimization. This is more specific in - intent than poking at uname or /proc/cpuinfo. - - For the moment, we have only optimizations for the Intel generations, - but that could change... */ +/* + * This yields a string that ld.so will use to load implementation + * specific libraries for optimization. This is more specific in + * intent than poking at uname or /proc/cpuinfo. + */ -#define ELF_PLATFORM ("PARISC\0" /*+((boot_cpu_data.x86-3)*5) */) +#define ELF_PLATFORM ("PARISC\0") #define SET_PERSONALITY(ex, ibcs2) \ current->personality = PER_LINUX; \ @@ -310,7 +309,7 @@ struct pt_regs; /* forward declaration... */ #define ELF_OSABI ELFOSABI_LINUX /* %r23 is set by ld.so to a pointer to a function which might be - registered using atexit. This provides a mean for the dynamic + registered using atexit. This provides a means for the dynamic linker to call DT_FINI functions for shared libraries that have been loaded before the code runs. @@ -339,6 +338,5 @@ struct pt_regs; /* forward declaration... */ but it's not easy, and we've already done it here. */ #define ELF_HWCAP 0 -/* (boot_cpu_data.x86_capability) */ #endif -- GitLab From b23f5baab393a36ea560182fc9f9005d47a15050 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 20 Feb 2008 15:53:02 -0600 Subject: [PATCH 878/923] [PARISC] add pa8900 CPUs to hardware inventory This patch adds the known pa8900 CPUs to the inventory list and removes the Crestone Peak one which apparently never escaped into the wild. Signed-off-by: James Bottomley Signed-off-by: Kyle McMartin --- arch/parisc/kernel/hardware.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c index 84b9611a922..363f44bdbae 100644 --- a/arch/parisc/kernel/hardware.c +++ b/arch/parisc/kernel/hardware.c @@ -274,7 +274,17 @@ static struct hp_hardware hp_hardware_list[] __devinitdata = { {HPHW_NPROC,0x887,0x4,0x91,"Storm Peak Slow"}, {HPHW_NPROC,0x888,0x4,0x91,"Storm Peak Fast DC-"}, {HPHW_NPROC,0x889,0x4,0x91,"Storm Peak Fast"}, - {HPHW_NPROC,0x88A,0x4,0x91,"Crestone Peak"}, + {HPHW_NPROC,0x88C,0x4,0x91,"Orca Mako+"}, + {HPHW_NPROC,0x88D,0x4,0x91,"Rainier/Medel Mako+ Slow"}, + {HPHW_NPROC,0x88E,0x4,0x91,"Rainier/Medel Mako+ Fast"}, + {HPHW_NPROC,0x894,0x4,0x91,"Mt. Hamilton Fast Mako+"}, + {HPHW_NPROC,0x895,0x4,0x91,"Storm Peak Slow Mako+"}, + {HPHW_NPROC,0x896,0x4,0x91,"Storm Peak Fast Mako+"}, + {HPHW_NPROC,0x897,0x4,0x91,"Storm Peak DC- Slow Mako+"}, + {HPHW_NPROC,0x898,0x4,0x91,"Storm Peak DC- Fast Mako+"}, + {HPHW_NPROC,0x899,0x4,0x91,"Mt. Hamilton Slow Mako+"}, + {HPHW_NPROC,0x89B,0x4,0x91,"Crestone Peak Mako+ Slow"}, + {HPHW_NPROC,0x89C,0x4,0x91,"Crestone Peak Mako+ Fast"}, {HPHW_A_DIRECT, 0x004, 0x0000D, 0x00, "Arrakis MUX"}, {HPHW_A_DIRECT, 0x005, 0x0000D, 0x00, "Dyun Kiuh MUX"}, {HPHW_A_DIRECT, 0x006, 0x0000D, 0x00, "Baat Kiuh AP/MUX (40299B)"}, -- GitLab From dc39455e7948ec9bc5f3f2dced5c2f5ac8a8dfd9 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Sat, 1 Mar 2008 10:30:19 -0800 Subject: [PATCH 879/923] [PARISC] clean up show_stack When we show_regs, we obviously have a struct pt_regs of the calling frame. Use these in show_stack so we don't have the entire bogus call trace up to the show_stack call. Signed-off-by: Kyle McMartin --- arch/parisc/kernel/traps.c | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index ce48c53fd27..9dc6dc42f9c 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -51,6 +51,9 @@ DEFINE_SPINLOCK(pa_dbit_lock); #endif +void parisc_show_stack(struct task_struct *t, unsigned long *sp, + struct pt_regs *regs); + static int printbinary(char *buf, unsigned long x, int nbits) { unsigned long mask = 1UL << (nbits - 1); @@ -149,7 +152,7 @@ void show_regs(struct pt_regs *regs) printk(level); print_symbol(" RP(r2): %s\n", regs->gr[2]); - dump_stack(); + parisc_show_stack(current, NULL, regs); } @@ -183,11 +186,19 @@ static void do_show_stack(struct unwind_frame_info *info) printk("\n"); } -void show_stack(struct task_struct *task, unsigned long *s) +void parisc_show_stack(struct task_struct *task, unsigned long *sp, + struct pt_regs *regs) { struct unwind_frame_info info; + struct task_struct *t; + + t = task ? task : current; + if (regs) { + unwind_frame_init(&info, t, regs); + goto show_stack; + } - if (!task) { + if (t == current) { unsigned long sp; HERE: @@ -203,12 +214,18 @@ HERE: unwind_frame_init(&info, current, &r); } } else { - unwind_frame_init_from_blocked_task(&info, task); + unwind_frame_init_from_blocked_task(&info, t); } +show_stack: do_show_stack(&info); } +void show_stack(struct task_struct *t, unsigned long *sp) +{ + return parisc_show_stack(t, sp, NULL); +} + int is_valid_bugaddr(unsigned long iaoq) { return 1; -- GitLab From c20a84c91048c76c1379011c96b1a5cee5c7d9a0 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Sat, 1 Mar 2008 10:25:52 -0800 Subject: [PATCH 880/923] [PARISC] futex: special case cmpxchg NULL in kernel space Commit a0c1e9073ef7428a14309cba010633a6cd6719ea added code to futex.c to detect whether futex_atomic_cmpxchg_inatomic was implemented at run time: + curval = cmpxchg_futex_value_locked(NULL, 0, 0); + if (curval == -EFAULT) + futex_cmpxchg_enabled = 1; This is bogus on parisc, since page zero in kernel virtual space is the gateway page for syscall entry, and should not be read from the kernel. (That, and we really don't like the kernel faulting on its own address space...) Signed-off-by: Kyle McMartin --- include/asm-parisc/futex.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/include/asm-parisc/futex.h b/include/asm-parisc/futex.h index dbee6e60aa8..fdc6d055ef7 100644 --- a/include/asm-parisc/futex.h +++ b/include/asm-parisc/futex.h @@ -56,6 +56,12 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) int err = 0; int uval; + /* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is + * our gateway page, and causes no end of trouble... + */ + if (segment_eq(KERNEL_DS, get_fs()) && !uaddr) + return -EFAULT; + if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) return -EFAULT; @@ -67,5 +73,5 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) return uval; } -#endif -#endif +#endif /*__KERNEL__*/ +#endif /*_ASM_PARISC_FUTEX_H*/ -- GitLab From ab86adb41f5afd75555aad907488f8f26138c549 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Sat, 1 Mar 2008 11:40:43 -0800 Subject: [PATCH 881/923] [PARISC] add back Crestone Peak cpu Crestone Peak Slow is the 800MHz PA-8800 cpu in the C8000. 0x88B is probably the Crestone Peak Fast. Signed-off-by: Kyle McMartin --- arch/parisc/kernel/hardware.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c index 363f44bdbae..f48a640b55f 100644 --- a/arch/parisc/kernel/hardware.c +++ b/arch/parisc/kernel/hardware.c @@ -274,6 +274,7 @@ static struct hp_hardware hp_hardware_list[] __devinitdata = { {HPHW_NPROC,0x887,0x4,0x91,"Storm Peak Slow"}, {HPHW_NPROC,0x888,0x4,0x91,"Storm Peak Fast DC-"}, {HPHW_NPROC,0x889,0x4,0x91,"Storm Peak Fast"}, + {HPHW_NPROC,0x88A,0x4,0x91,"Crestone Peak Slow"}, {HPHW_NPROC,0x88C,0x4,0x91,"Orca Mako+"}, {HPHW_NPROC,0x88D,0x4,0x91,"Rainier/Medel Mako+ Slow"}, {HPHW_NPROC,0x88E,0x4,0x91,"Rainier/Medel Mako+ Fast"}, -- GitLab From 0c634cc6299b55279fa2d3a7a5964ae45a642498 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Wed, 26 Dec 2007 18:07:01 +0100 Subject: [PATCH 882/923] [PARISC] head.S: section mismatch fixes - move boot_args[] into the init section - move $global$ into the read_mostly section - fix the following two section mismatches: WARNING: vmlinux.o(.text+0x9c): Section mismatch: reference to .init.text:start_kernel (between '$pgt_fill_loop' and '$is_pa20') WARNING: vmlinux.o(.text+0xa0): Section mismatch: reference to .init.text:start_kernel (between '$pgt_fill_loop' and '$is_pa20') Signed-off-by: Helge Deller SIgned-off-by: Kyle McMartin --- arch/parisc/kernel/head.S | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S index a7b8859488b..ec2482dc1be 100644 --- a/arch/parisc/kernel/head.S +++ b/arch/parisc/kernel/head.S @@ -20,10 +20,11 @@ #include #include +#include .level LEVEL - .data + __INITDATA ENTRY(boot_args) .word 0 /* arg0 */ .word 0 /* arg1 */ @@ -31,7 +32,7 @@ ENTRY(boot_args) .word 0 /* arg3 */ END(boot_args) - .text + .section .text.head .align 4 .import init_thread_union,data .import fault_vector_20,code /* IVA parisc 2.0 32 bit */ @@ -343,7 +344,7 @@ smp_slave_stext: ENDPROC(stext) #ifndef CONFIG_64BIT - .data + .section .data.read_mostly .align 4 .export $global$,data -- GitLab From 56ee0cfd095eab246c0ecd4398c4f30a546663f7 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Mon, 10 Mar 2008 20:43:24 +0900 Subject: [PATCH 883/923] [PARISC] make ptr_to_pide() static Signed-off-by: FUJITA Tomonori Signed-off-by: Kyle McMartin --- drivers/parisc/sba_iommu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index bdbe780e21c..8c4d2c13d5f 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -314,8 +314,8 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents) #define RESMAP_MASK(n) (~0UL << (BITS_PER_LONG - (n))) #define RESMAP_IDX_MASK (sizeof(unsigned long) - 1) -unsigned long ptr_to_pide(struct ioc *ioc, unsigned long *res_ptr, - unsigned int bitshiftcnt) +static unsigned long ptr_to_pide(struct ioc *ioc, unsigned long *res_ptr, + unsigned int bitshiftcnt) { return (((unsigned long)res_ptr - (unsigned long)ioc->res_map) << 3) + bitshiftcnt; -- GitLab From a978b30af3bab0dd9af9350eeda25e76123fa28e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 16 Mar 2008 16:32:14 -0700 Subject: [PATCH 884/923] Linux 2.6.25-rc6 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 0eb23e5bfc8..7a4d34b91e0 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 25 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Funky Weasel is Jiggy wit it # *DOCUMENTATION* -- GitLab From ed773b4ab1387a25b3be027d45c94daae3c8a607 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 16 Mar 2008 22:43:06 +0000 Subject: [PATCH 885/923] r6040 endianness fixes pci_unmap_single() on little-endian address Signed-off-by: Al Viro Signed-off-by: Jeff Garzik --- drivers/net/r6040.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c index 19184e486ae..169edc15492 100644 --- a/drivers/net/r6040.c +++ b/drivers/net/r6040.c @@ -239,7 +239,8 @@ static void r6040_free_txbufs(struct net_device *dev) for (i = 0; i < TX_DCNT; i++) { if (lp->tx_insert_ptr->skb_ptr) { - pci_unmap_single(lp->pdev, lp->tx_insert_ptr->buf, + pci_unmap_single(lp->pdev, + le32_to_cpu(lp->tx_insert_ptr->buf), MAX_BUF_SIZE, PCI_DMA_TODEVICE); dev_kfree_skb(lp->tx_insert_ptr->skb_ptr); lp->rx_insert_ptr->skb_ptr = NULL; @@ -255,7 +256,8 @@ static void r6040_free_rxbufs(struct net_device *dev) for (i = 0; i < RX_DCNT; i++) { if (lp->rx_insert_ptr->skb_ptr) { - pci_unmap_single(lp->pdev, lp->rx_insert_ptr->buf, + pci_unmap_single(lp->pdev, + le32_to_cpu(lp->rx_insert_ptr->buf), MAX_BUF_SIZE, PCI_DMA_FROMDEVICE); dev_kfree_skb(lp->rx_insert_ptr->skb_ptr); lp->rx_insert_ptr->skb_ptr = NULL; @@ -542,7 +544,7 @@ static int r6040_rx(struct net_device *dev, int limit) skb_ptr->dev = priv->dev; /* Do not count the CRC */ skb_put(skb_ptr, descptr->len - 4); - pci_unmap_single(priv->pdev, descptr->buf, + pci_unmap_single(priv->pdev, le32_to_cpu(descptr->buf), MAX_BUF_SIZE, PCI_DMA_FROMDEVICE); skb_ptr->protocol = eth_type_trans(skb_ptr, priv->dev); /* Send to upper layer */ @@ -585,7 +587,7 @@ static void r6040_tx(struct net_device *dev) if (descptr->status & 0x8000) break; /* Not complete */ skb_ptr = descptr->skb_ptr; - pci_unmap_single(priv->pdev, descptr->buf, + pci_unmap_single(priv->pdev, le32_to_cpu(descptr->buf), skb_ptr->len, PCI_DMA_TODEVICE); /* Free buffer */ dev_kfree_skb_irq(skb_ptr); -- GitLab From 5ffa6d7f613ca0198dae235986443cd921fa2e75 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 16 Mar 2008 22:22:44 +0000 Subject: [PATCH 886/923] wan/farsync: copy_from_user() to iomem is wrong kmalloc intermediate buffer(), do copy_from_user() + memcpy_toio() Signed-off-by: Al Viro Signed-off-by: Jeff Garzik --- drivers/net/wan/farsync.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c index cf27bf40d36..547368e9633 100644 --- a/drivers/net/wan/farsync.c +++ b/drivers/net/wan/farsync.c @@ -2024,6 +2024,7 @@ fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) struct fstioc_write wrthdr; struct fstioc_info info; unsigned long flags; + void *buf; dbg(DBG_IOCTL, "ioctl: %x, %p\n", cmd, ifr->ifr_data); @@ -2065,16 +2066,22 @@ fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return -ENXIO; } - /* Now copy the data to the card. - * This will probably break on some architectures. - * I'll fix it when I have something to test on. - */ - if (copy_from_user(card->mem + wrthdr.offset, + /* Now copy the data to the card. */ + + buf = kmalloc(wrthdr.size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + if (copy_from_user(buf, ifr->ifr_data + sizeof (struct fstioc_write), wrthdr.size)) { + kfree(buf); return -EFAULT; } + memcpy_toio(card->mem + wrthdr.offset, buf, wrthdr.size); + kfree(buf); + /* Writes to the memory of a card in the reset state constitute * a download */ -- GitLab From 63734a32a401d79eb1ae54bf61374a54c05750c9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 16 Mar 2008 22:23:04 +0000 Subject: [PATCH 887/923] fore2000 - fix misannotations Signed-off-by: Al Viro Signed-off-by: Jeff Garzik --- drivers/atm/fore200e.c | 110 ++++++++++++++++++++--------------------- drivers/atm/fore200e.h | 106 +++++++++++++++++++-------------------- 2 files changed, 108 insertions(+), 108 deletions(-) diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c index 9427a61f62b..432181ed7bb 100644 --- a/drivers/atm/fore200e.c +++ b/drivers/atm/fore200e.c @@ -1988,19 +1988,19 @@ fore200e_fetch_stats(struct fore200e* fore200e, struct sonet_stats __user *arg) if (fore200e_getstats(fore200e) < 0) return -EIO; - tmp.section_bip = cpu_to_be32(fore200e->stats->oc3.section_bip8_errors); - tmp.line_bip = cpu_to_be32(fore200e->stats->oc3.line_bip24_errors); - tmp.path_bip = cpu_to_be32(fore200e->stats->oc3.path_bip8_errors); - tmp.line_febe = cpu_to_be32(fore200e->stats->oc3.line_febe_errors); - tmp.path_febe = cpu_to_be32(fore200e->stats->oc3.path_febe_errors); - tmp.corr_hcs = cpu_to_be32(fore200e->stats->oc3.corr_hcs_errors); - tmp.uncorr_hcs = cpu_to_be32(fore200e->stats->oc3.ucorr_hcs_errors); - tmp.tx_cells = cpu_to_be32(fore200e->stats->aal0.cells_transmitted) + - cpu_to_be32(fore200e->stats->aal34.cells_transmitted) + - cpu_to_be32(fore200e->stats->aal5.cells_transmitted); - tmp.rx_cells = cpu_to_be32(fore200e->stats->aal0.cells_received) + - cpu_to_be32(fore200e->stats->aal34.cells_received) + - cpu_to_be32(fore200e->stats->aal5.cells_received); + tmp.section_bip = be32_to_cpu(fore200e->stats->oc3.section_bip8_errors); + tmp.line_bip = be32_to_cpu(fore200e->stats->oc3.line_bip24_errors); + tmp.path_bip = be32_to_cpu(fore200e->stats->oc3.path_bip8_errors); + tmp.line_febe = be32_to_cpu(fore200e->stats->oc3.line_febe_errors); + tmp.path_febe = be32_to_cpu(fore200e->stats->oc3.path_febe_errors); + tmp.corr_hcs = be32_to_cpu(fore200e->stats->oc3.corr_hcs_errors); + tmp.uncorr_hcs = be32_to_cpu(fore200e->stats->oc3.ucorr_hcs_errors); + tmp.tx_cells = be32_to_cpu(fore200e->stats->aal0.cells_transmitted) + + be32_to_cpu(fore200e->stats->aal34.cells_transmitted) + + be32_to_cpu(fore200e->stats->aal5.cells_transmitted); + tmp.rx_cells = be32_to_cpu(fore200e->stats->aal0.cells_received) + + be32_to_cpu(fore200e->stats->aal34.cells_received) + + be32_to_cpu(fore200e->stats->aal5.cells_received); if (arg) return copy_to_user(arg, &tmp, sizeof(struct sonet_stats)) ? -EFAULT : 0; @@ -2587,7 +2587,7 @@ fore200e_start_fw(struct fore200e* fore200e) static int __devinit fore200e_load_fw(struct fore200e* fore200e) { - u32* fw_data = (u32*) fore200e->bus->fw_data; + __le32* fw_data = (__le32*) fore200e->bus->fw_data; u32 fw_size = (u32) *fore200e->bus->fw_size / sizeof(u32); struct fw_header* fw_header = (struct fw_header*) fw_data; @@ -2965,8 +2965,8 @@ fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) " 4b5b:\n" " crc_header_errors:\t\t%10u\n" " framing_errors:\t\t%10u\n", - cpu_to_be32(fore200e->stats->phy.crc_header_errors), - cpu_to_be32(fore200e->stats->phy.framing_errors)); + be32_to_cpu(fore200e->stats->phy.crc_header_errors), + be32_to_cpu(fore200e->stats->phy.framing_errors)); if (!left--) return sprintf(page, "\n" @@ -2978,13 +2978,13 @@ fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) " path_febe_errors:\t\t%10u\n" " corr_hcs_errors:\t\t%10u\n" " ucorr_hcs_errors:\t\t%10u\n", - cpu_to_be32(fore200e->stats->oc3.section_bip8_errors), - cpu_to_be32(fore200e->stats->oc3.path_bip8_errors), - cpu_to_be32(fore200e->stats->oc3.line_bip24_errors), - cpu_to_be32(fore200e->stats->oc3.line_febe_errors), - cpu_to_be32(fore200e->stats->oc3.path_febe_errors), - cpu_to_be32(fore200e->stats->oc3.corr_hcs_errors), - cpu_to_be32(fore200e->stats->oc3.ucorr_hcs_errors)); + be32_to_cpu(fore200e->stats->oc3.section_bip8_errors), + be32_to_cpu(fore200e->stats->oc3.path_bip8_errors), + be32_to_cpu(fore200e->stats->oc3.line_bip24_errors), + be32_to_cpu(fore200e->stats->oc3.line_febe_errors), + be32_to_cpu(fore200e->stats->oc3.path_febe_errors), + be32_to_cpu(fore200e->stats->oc3.corr_hcs_errors), + be32_to_cpu(fore200e->stats->oc3.ucorr_hcs_errors)); if (!left--) return sprintf(page,"\n" @@ -2995,12 +2995,12 @@ fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) " vpi no conn:\t\t%10u\n" " vci out of range:\t\t%10u\n" " vci no conn:\t\t%10u\n", - cpu_to_be32(fore200e->stats->atm.cells_transmitted), - cpu_to_be32(fore200e->stats->atm.cells_received), - cpu_to_be32(fore200e->stats->atm.vpi_bad_range), - cpu_to_be32(fore200e->stats->atm.vpi_no_conn), - cpu_to_be32(fore200e->stats->atm.vci_bad_range), - cpu_to_be32(fore200e->stats->atm.vci_no_conn)); + be32_to_cpu(fore200e->stats->atm.cells_transmitted), + be32_to_cpu(fore200e->stats->atm.cells_received), + be32_to_cpu(fore200e->stats->atm.vpi_bad_range), + be32_to_cpu(fore200e->stats->atm.vpi_no_conn), + be32_to_cpu(fore200e->stats->atm.vci_bad_range), + be32_to_cpu(fore200e->stats->atm.vci_no_conn)); if (!left--) return sprintf(page,"\n" @@ -3008,9 +3008,9 @@ fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) " TX:\t\t\t%10u\n" " RX:\t\t\t%10u\n" " dropped:\t\t\t%10u\n", - cpu_to_be32(fore200e->stats->aal0.cells_transmitted), - cpu_to_be32(fore200e->stats->aal0.cells_received), - cpu_to_be32(fore200e->stats->aal0.cells_dropped)); + be32_to_cpu(fore200e->stats->aal0.cells_transmitted), + be32_to_cpu(fore200e->stats->aal0.cells_received), + be32_to_cpu(fore200e->stats->aal0.cells_dropped)); if (!left--) return sprintf(page,"\n" @@ -3026,15 +3026,15 @@ fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) " RX:\t\t\t%10u\n" " dropped:\t\t\t%10u\n" " protocol errors:\t\t%10u\n", - cpu_to_be32(fore200e->stats->aal34.cells_transmitted), - cpu_to_be32(fore200e->stats->aal34.cells_received), - cpu_to_be32(fore200e->stats->aal34.cells_dropped), - cpu_to_be32(fore200e->stats->aal34.cells_crc_errors), - cpu_to_be32(fore200e->stats->aal34.cells_protocol_errors), - cpu_to_be32(fore200e->stats->aal34.cspdus_transmitted), - cpu_to_be32(fore200e->stats->aal34.cspdus_received), - cpu_to_be32(fore200e->stats->aal34.cspdus_dropped), - cpu_to_be32(fore200e->stats->aal34.cspdus_protocol_errors)); + be32_to_cpu(fore200e->stats->aal34.cells_transmitted), + be32_to_cpu(fore200e->stats->aal34.cells_received), + be32_to_cpu(fore200e->stats->aal34.cells_dropped), + be32_to_cpu(fore200e->stats->aal34.cells_crc_errors), + be32_to_cpu(fore200e->stats->aal34.cells_protocol_errors), + be32_to_cpu(fore200e->stats->aal34.cspdus_transmitted), + be32_to_cpu(fore200e->stats->aal34.cspdus_received), + be32_to_cpu(fore200e->stats->aal34.cspdus_dropped), + be32_to_cpu(fore200e->stats->aal34.cspdus_protocol_errors)); if (!left--) return sprintf(page,"\n" @@ -3050,15 +3050,15 @@ fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) " dropped:\t\t\t%10u\n" " CRC errors:\t\t%10u\n" " protocol errors:\t\t%10u\n", - cpu_to_be32(fore200e->stats->aal5.cells_transmitted), - cpu_to_be32(fore200e->stats->aal5.cells_received), - cpu_to_be32(fore200e->stats->aal5.cells_dropped), - cpu_to_be32(fore200e->stats->aal5.congestion_experienced), - cpu_to_be32(fore200e->stats->aal5.cspdus_transmitted), - cpu_to_be32(fore200e->stats->aal5.cspdus_received), - cpu_to_be32(fore200e->stats->aal5.cspdus_dropped), - cpu_to_be32(fore200e->stats->aal5.cspdus_crc_errors), - cpu_to_be32(fore200e->stats->aal5.cspdus_protocol_errors)); + be32_to_cpu(fore200e->stats->aal5.cells_transmitted), + be32_to_cpu(fore200e->stats->aal5.cells_received), + be32_to_cpu(fore200e->stats->aal5.cells_dropped), + be32_to_cpu(fore200e->stats->aal5.congestion_experienced), + be32_to_cpu(fore200e->stats->aal5.cspdus_transmitted), + be32_to_cpu(fore200e->stats->aal5.cspdus_received), + be32_to_cpu(fore200e->stats->aal5.cspdus_dropped), + be32_to_cpu(fore200e->stats->aal5.cspdus_crc_errors), + be32_to_cpu(fore200e->stats->aal5.cspdus_protocol_errors)); if (!left--) return sprintf(page,"\n" @@ -3069,11 +3069,11 @@ fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) " large b2:\t\t\t%10u\n" " RX PDUs:\t\t\t%10u\n" " TX PDUs:\t\t\t%10lu\n", - cpu_to_be32(fore200e->stats->aux.small_b1_failed), - cpu_to_be32(fore200e->stats->aux.large_b1_failed), - cpu_to_be32(fore200e->stats->aux.small_b2_failed), - cpu_to_be32(fore200e->stats->aux.large_b2_failed), - cpu_to_be32(fore200e->stats->aux.rpd_alloc_failed), + be32_to_cpu(fore200e->stats->aux.small_b1_failed), + be32_to_cpu(fore200e->stats->aux.large_b1_failed), + be32_to_cpu(fore200e->stats->aux.small_b2_failed), + be32_to_cpu(fore200e->stats->aux.large_b2_failed), + be32_to_cpu(fore200e->stats->aux.rpd_alloc_failed), fore200e->tx_sat); if (!left--) diff --git a/drivers/atm/fore200e.h b/drivers/atm/fore200e.h index b85a54613de..183841cc8fd 100644 --- a/drivers/atm/fore200e.h +++ b/drivers/atm/fore200e.h @@ -349,90 +349,90 @@ typedef struct oc3_block { /* physical encoding statistics */ typedef struct stats_phy { - u32 crc_header_errors; /* cells received with bad header CRC */ - u32 framing_errors; /* cells received with bad framing */ - u32 pad[ 2 ]; /* i960 padding */ + __be32 crc_header_errors; /* cells received with bad header CRC */ + __be32 framing_errors; /* cells received with bad framing */ + __be32 pad[ 2 ]; /* i960 padding */ } stats_phy_t; /* OC-3 statistics */ typedef struct stats_oc3 { - u32 section_bip8_errors; /* section 8 bit interleaved parity */ - u32 path_bip8_errors; /* path 8 bit interleaved parity */ - u32 line_bip24_errors; /* line 24 bit interleaved parity */ - u32 line_febe_errors; /* line far end block errors */ - u32 path_febe_errors; /* path far end block errors */ - u32 corr_hcs_errors; /* correctable header check sequence */ - u32 ucorr_hcs_errors; /* uncorrectable header check sequence */ - u32 pad[ 1 ]; /* i960 padding */ + __be32 section_bip8_errors; /* section 8 bit interleaved parity */ + __be32 path_bip8_errors; /* path 8 bit interleaved parity */ + __be32 line_bip24_errors; /* line 24 bit interleaved parity */ + __be32 line_febe_errors; /* line far end block errors */ + __be32 path_febe_errors; /* path far end block errors */ + __be32 corr_hcs_errors; /* correctable header check sequence */ + __be32 ucorr_hcs_errors; /* uncorrectable header check sequence */ + __be32 pad[ 1 ]; /* i960 padding */ } stats_oc3_t; /* ATM statistics */ typedef struct stats_atm { - u32 cells_transmitted; /* cells transmitted */ - u32 cells_received; /* cells received */ - u32 vpi_bad_range; /* cell drops: VPI out of range */ - u32 vpi_no_conn; /* cell drops: no connection for VPI */ - u32 vci_bad_range; /* cell drops: VCI out of range */ - u32 vci_no_conn; /* cell drops: no connection for VCI */ - u32 pad[ 2 ]; /* i960 padding */ + __be32 cells_transmitted; /* cells transmitted */ + __be32 cells_received; /* cells received */ + __be32 vpi_bad_range; /* cell drops: VPI out of range */ + __be32 vpi_no_conn; /* cell drops: no connection for VPI */ + __be32 vci_bad_range; /* cell drops: VCI out of range */ + __be32 vci_no_conn; /* cell drops: no connection for VCI */ + __be32 pad[ 2 ]; /* i960 padding */ } stats_atm_t; /* AAL0 statistics */ typedef struct stats_aal0 { - u32 cells_transmitted; /* cells transmitted */ - u32 cells_received; /* cells received */ - u32 cells_dropped; /* cells dropped */ - u32 pad[ 1 ]; /* i960 padding */ + __be32 cells_transmitted; /* cells transmitted */ + __be32 cells_received; /* cells received */ + __be32 cells_dropped; /* cells dropped */ + __be32 pad[ 1 ]; /* i960 padding */ } stats_aal0_t; /* AAL3/4 statistics */ typedef struct stats_aal34 { - u32 cells_transmitted; /* cells transmitted from segmented PDUs */ - u32 cells_received; /* cells reassembled into PDUs */ - u32 cells_crc_errors; /* payload CRC error count */ - u32 cells_protocol_errors; /* SAR or CS layer protocol errors */ - u32 cells_dropped; /* cells dropped: partial reassembly */ - u32 cspdus_transmitted; /* CS PDUs transmitted */ - u32 cspdus_received; /* CS PDUs received */ - u32 cspdus_protocol_errors; /* CS layer protocol errors */ - u32 cspdus_dropped; /* reassembled PDUs drop'd (in cells) */ - u32 pad[ 3 ]; /* i960 padding */ + __be32 cells_transmitted; /* cells transmitted from segmented PDUs */ + __be32 cells_received; /* cells reassembled into PDUs */ + __be32 cells_crc_errors; /* payload CRC error count */ + __be32 cells_protocol_errors; /* SAR or CS layer protocol errors */ + __be32 cells_dropped; /* cells dropped: partial reassembly */ + __be32 cspdus_transmitted; /* CS PDUs transmitted */ + __be32 cspdus_received; /* CS PDUs received */ + __be32 cspdus_protocol_errors; /* CS layer protocol errors */ + __be32 cspdus_dropped; /* reassembled PDUs drop'd (in cells) */ + __be32 pad[ 3 ]; /* i960 padding */ } stats_aal34_t; /* AAL5 statistics */ typedef struct stats_aal5 { - u32 cells_transmitted; /* cells transmitted from segmented SDUs */ - u32 cells_received; /* cells reassembled into SDUs */ - u32 cells_dropped; /* reassembled PDUs dropped (in cells) */ - u32 congestion_experienced; /* CRC error and length wrong */ - u32 cspdus_transmitted; /* CS PDUs transmitted */ - u32 cspdus_received; /* CS PDUs received */ - u32 cspdus_crc_errors; /* CS PDUs CRC errors */ - u32 cspdus_protocol_errors; /* CS layer protocol errors */ - u32 cspdus_dropped; /* reassembled PDUs dropped */ - u32 pad[ 3 ]; /* i960 padding */ + __be32 cells_transmitted; /* cells transmitted from segmented SDUs */ + __be32 cells_received; /* cells reassembled into SDUs */ + __be32 cells_dropped; /* reassembled PDUs dropped (in cells) */ + __be32 congestion_experienced; /* CRC error and length wrong */ + __be32 cspdus_transmitted; /* CS PDUs transmitted */ + __be32 cspdus_received; /* CS PDUs received */ + __be32 cspdus_crc_errors; /* CS PDUs CRC errors */ + __be32 cspdus_protocol_errors; /* CS layer protocol errors */ + __be32 cspdus_dropped; /* reassembled PDUs dropped */ + __be32 pad[ 3 ]; /* i960 padding */ } stats_aal5_t; /* auxiliary statistics */ typedef struct stats_aux { - u32 small_b1_failed; /* receive BD allocation failures */ - u32 large_b1_failed; /* receive BD allocation failures */ - u32 small_b2_failed; /* receive BD allocation failures */ - u32 large_b2_failed; /* receive BD allocation failures */ - u32 rpd_alloc_failed; /* receive PDU allocation failures */ - u32 receive_carrier; /* no carrier = 0, carrier = 1 */ - u32 pad[ 2 ]; /* i960 padding */ + __be32 small_b1_failed; /* receive BD allocation failures */ + __be32 large_b1_failed; /* receive BD allocation failures */ + __be32 small_b2_failed; /* receive BD allocation failures */ + __be32 large_b2_failed; /* receive BD allocation failures */ + __be32 rpd_alloc_failed; /* receive PDU allocation failures */ + __be32 receive_carrier; /* no carrier = 0, carrier = 1 */ + __be32 pad[ 2 ]; /* i960 padding */ } stats_aux_t; @@ -643,10 +643,10 @@ typedef struct host_bsq { /* header of the firmware image */ typedef struct fw_header { - u32 magic; /* magic number */ - u32 version; /* firmware version id */ - u32 load_offset; /* fw load offset in board memory */ - u32 start_offset; /* fw execution start address in board memory */ + __le32 magic; /* magic number */ + __le32 version; /* firmware version id */ + __le32 load_offset; /* fw load offset in board memory */ + __le32 start_offset; /* fw execution start address in board memory */ } fw_header_t; #define FW_HEADER_MAGIC 0x65726f66 /* 'fore' */ -- GitLab From 3b5e26f7b07f5e537cef705de79174025ecd383c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 16 Mar 2008 22:22:34 +0000 Subject: [PATCH 888/923] more misannotations: ne2k-pci Signed-off-by: Al Viro Signed-off-by: Jeff Garzik --- drivers/net/ne2k-pci.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ne2k-pci.c b/drivers/net/ne2k-pci.c index b569c90da4b..de0de744a8f 100644 --- a/drivers/net/ne2k-pci.c +++ b/drivers/net/ne2k-pci.c @@ -535,9 +535,9 @@ static void ne2k_pci_block_input(struct net_device *dev, int count, if (count & 3) { buf += count & ~3; if (count & 2) { - u16 *b = (u16 *)buf; + __le16 *b = (__le16 *)buf; - *b++ = le16_to_cpu(inw(NE_BASE + NE_DATAPORT)); + *b++ = cpu_to_le16(inw(NE_BASE + NE_DATAPORT)); buf = (char *)b; } if (count & 1) @@ -600,9 +600,9 @@ static void ne2k_pci_block_output(struct net_device *dev, int count, if (count & 3) { buf += count & ~3; if (count & 2) { - u16 *b = (u16 *)buf; + __le16 *b = (__le16 *)buf; - outw(cpu_to_le16(*b++), NE_BASE + NE_DATAPORT); + outw(le16_to_cpu(*b++), NE_BASE + NE_DATAPORT); buf = (char *)b; } } -- GitLab From 48f5fec5486286103c4423fc78fdf3a15530c3b9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 16 Mar 2008 22:22:14 +0000 Subject: [PATCH 889/923] ipg fix spurious cpu_to_le64() Signed-off-by: Al Viro Signed-off-by: Jeff Garzik --- drivers/net/ipg.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/ipg.c b/drivers/net/ipg.c index 5e5d9b527ed..2fdbde772e9 100644 --- a/drivers/net/ipg.c +++ b/drivers/net/ipg.c @@ -1900,8 +1900,13 @@ static int ipg_nic_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Specify the TFC field within the TFD. */ txfd->tfc |= cpu_to_le64(IPG_TFC_WORDALIGNDISABLED | - (IPG_TFC_FRAMEID & cpu_to_le64(sp->tx_current)) | + (IPG_TFC_FRAMEID & sp->tx_current) | (IPG_TFC_FRAGCOUNT & (1 << 24))); + /* + * 16--17 (WordAlign) <- 3 (disable), + * 0--15 (FrameId) <- sp->tx_current, + * 24--27 (FragCount) <- 1 + */ /* Request TxComplete interrupts at an interval defined * by the constant IPG_FRAMESBETWEENTXCOMPLETES. -- GitLab From 9ebfd4929dc86d33cb68823714802cf226a38d42 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 16 Mar 2008 22:22:04 +0000 Subject: [PATCH 890/923] epic100 endianness annotations and fixes * "powerpc or sparc" is not the same as "big-endian", fix the ifdef * since we tell the card to byteswap the descriptors on big-endian, we ought to leave them host-endian... Signed-off-by: Al Viro Signed-off-by: Jeff Garzik --- drivers/net/epic100.c | 47 +++++++++++++++++++++++++------------------ 1 file changed, 27 insertions(+), 20 deletions(-) diff --git a/drivers/net/epic100.c b/drivers/net/epic100.c index 0b365b8d947..76118ddd104 100644 --- a/drivers/net/epic100.c +++ b/drivers/net/epic100.c @@ -131,8 +131,8 @@ IIIa. Ring buffers IVb. References -http://www.smsc.com/main/datasheets/83c171.pdf -http://www.smsc.com/main/datasheets/83c175.pdf +http://www.smsc.com/main/tools/discontinued/83c171.pdf +http://www.smsc.com/main/tools/discontinued/83c175.pdf http://scyld.com/expert/NWay.html http://www.national.com/pf/DP/DP83840A.html @@ -227,7 +227,12 @@ static const u16 media2miictl[16] = { 0, 0x0C00, 0x0C00, 0x2000, 0x0100, 0x2100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; -/* The EPIC100 Rx and Tx buffer descriptors. */ +/* + * The EPIC100 Rx and Tx buffer descriptors. Note that these + * really ARE host-endian; it's not a misannotation. We tell + * the card to byteswap them internally on big-endian hosts - + * look for #ifdef CONFIG_BIG_ENDIAN in epic_open(). + */ struct epic_tx_desc { u32 txstatus; @@ -418,7 +423,7 @@ static int __devinit epic_init_one (struct pci_dev *pdev, /* Note: the '175 does not have a serial EEPROM. */ for (i = 0; i < 3; i++) - ((u16 *)dev->dev_addr)[i] = le16_to_cpu(inw(ioaddr + LAN0 + i*4)); + ((__le16 *)dev->dev_addr)[i] = cpu_to_le16(inw(ioaddr + LAN0 + i*4)); if (debug > 2) { dev_printk(KERN_DEBUG, &pdev->dev, "EEPROM contents:\n"); @@ -682,7 +687,8 @@ static int epic_open(struct net_device *dev) if (ep->chip_flags & MII_PWRDWN) outl((inl(ioaddr + NVCTL) & ~0x003C) | 0x4800, ioaddr + NVCTL); -#if defined(__powerpc__) || defined(__sparc__) /* Big endian */ + /* Tell the chip to byteswap descriptors on big-endian hosts */ +#ifdef CONFIG_BIG_ENDIAN outl(0x4432 | (RX_FIFO_THRESH<<8), ioaddr + GENCTL); inl(ioaddr + GENCTL); outl(0x0432 | (RX_FIFO_THRESH<<8), ioaddr + GENCTL); @@ -695,7 +701,7 @@ static int epic_open(struct net_device *dev) udelay(20); /* Looks like EPII needs that if you want reliable RX init. FIXME: pci posting bug? */ for (i = 0; i < 3; i++) - outl(cpu_to_le16(((u16*)dev->dev_addr)[i]), ioaddr + LAN0 + i*4); + outl(le16_to_cpu(((__le16*)dev->dev_addr)[i]), ioaddr + LAN0 + i*4); ep->tx_threshold = TX_FIFO_THRESH; outl(ep->tx_threshold, ioaddr + TxThresh); @@ -798,7 +804,7 @@ static void epic_restart(struct net_device *dev) for (i = 16; i > 0; i--) outl(0x0008, ioaddr + TEST1); -#if defined(__powerpc__) || defined(__sparc__) /* Big endian */ +#ifdef CONFIG_BIG_ENDIAN outl(0x0432 | (RX_FIFO_THRESH<<8), ioaddr + GENCTL); #else outl(0x0412 | (RX_FIFO_THRESH<<8), ioaddr + GENCTL); @@ -808,7 +814,7 @@ static void epic_restart(struct net_device *dev) outl((inl(ioaddr + NVCTL) & ~0x003C) | 0x4800, ioaddr + NVCTL); for (i = 0; i < 3; i++) - outl(cpu_to_le16(((u16*)dev->dev_addr)[i]), ioaddr + LAN0 + i*4); + outl(le16_to_cpu(((__le16*)dev->dev_addr)[i]), ioaddr + LAN0 + i*4); ep->tx_threshold = TX_FIFO_THRESH; outl(ep->tx_threshold, ioaddr + TxThresh); @@ -919,7 +925,7 @@ static void epic_init_ring(struct net_device *dev) /* Initialize all Rx descriptors. */ for (i = 0; i < RX_RING_SIZE; i++) { ep->rx_ring[i].rxstatus = 0; - ep->rx_ring[i].buflength = cpu_to_le32(ep->rx_buf_sz); + ep->rx_ring[i].buflength = ep->rx_buf_sz; ep->rx_ring[i].next = ep->rx_ring_dma + (i+1)*sizeof(struct epic_rx_desc); ep->rx_skbuff[i] = NULL; @@ -936,7 +942,7 @@ static void epic_init_ring(struct net_device *dev) skb_reserve(skb, 2); /* 16 byte align the IP header. */ ep->rx_ring[i].bufaddr = pci_map_single(ep->pci_dev, skb->data, ep->rx_buf_sz, PCI_DMA_FROMDEVICE); - ep->rx_ring[i].rxstatus = cpu_to_le32(DescOwn); + ep->rx_ring[i].rxstatus = DescOwn; } ep->dirty_rx = (unsigned int)(i - RX_RING_SIZE); @@ -974,20 +980,20 @@ static int epic_start_xmit(struct sk_buff *skb, struct net_device *dev) ep->tx_ring[entry].bufaddr = pci_map_single(ep->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); if (free_count < TX_QUEUE_LEN/2) {/* Typical path */ - ctrl_word = cpu_to_le32(0x100000); /* No interrupt */ + ctrl_word = 0x100000; /* No interrupt */ } else if (free_count == TX_QUEUE_LEN/2) { - ctrl_word = cpu_to_le32(0x140000); /* Tx-done intr. */ + ctrl_word = 0x140000; /* Tx-done intr. */ } else if (free_count < TX_QUEUE_LEN - 1) { - ctrl_word = cpu_to_le32(0x100000); /* No Tx-done intr. */ + ctrl_word = 0x100000; /* No Tx-done intr. */ } else { /* Leave room for an additional entry. */ - ctrl_word = cpu_to_le32(0x140000); /* Tx-done intr. */ + ctrl_word = 0x140000; /* Tx-done intr. */ ep->tx_full = 1; } - ep->tx_ring[entry].buflength = ctrl_word | cpu_to_le32(skb->len); + ep->tx_ring[entry].buflength = ctrl_word | skb->len; ep->tx_ring[entry].txstatus = ((skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN) << 16) - | cpu_to_le32(DescOwn); + | DescOwn; ep->cur_tx++; if (ep->tx_full) @@ -1041,7 +1047,7 @@ static void epic_tx(struct net_device *dev, struct epic_private *ep) for (dirty_tx = ep->dirty_tx; cur_tx - dirty_tx > 0; dirty_tx++) { struct sk_buff *skb; int entry = dirty_tx % TX_RING_SIZE; - int txstatus = le32_to_cpu(ep->tx_ring[entry].txstatus); + int txstatus = ep->tx_ring[entry].txstatus; if (txstatus & DescOwn) break; /* It still hasn't been Txed */ @@ -1163,8 +1169,8 @@ static int epic_rx(struct net_device *dev, int budget) rx_work_limit = budget; /* If we own the next entry, it's a new packet. Send it up. */ - while ((ep->rx_ring[entry].rxstatus & cpu_to_le32(DescOwn)) == 0) { - int status = le32_to_cpu(ep->rx_ring[entry].rxstatus); + while ((ep->rx_ring[entry].rxstatus & DescOwn) == 0) { + int status = ep->rx_ring[entry].rxstatus; if (debug > 4) printk(KERN_DEBUG " epic_rx() status was %8.8x.\n", status); @@ -1238,7 +1244,8 @@ static int epic_rx(struct net_device *dev, int budget) skb->data, ep->rx_buf_sz, PCI_DMA_FROMDEVICE); work_done++; } - ep->rx_ring[entry].rxstatus = cpu_to_le32(DescOwn); + /* AV: shouldn't we add a barrier here? */ + ep->rx_ring[entry].rxstatus = DescOwn; } return work_done; } -- GitLab From b97ef8757b6752397ed1dd24bfc9083cf4dc49b4 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 15 Mar 2008 17:04:39 +0100 Subject: [PATCH 891/923] drivers/net/ipg.c: remove unused variable The variable gig is initialized but never used otherwise. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ type T; identifier i; constant C; @@ ( extern T i; | - T i; <+... when != i - i = C; ...+> ) // Signed-off-by: Julia Lawall Signed-off-by: Jeff Garzik --- drivers/net/ipg.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/ipg.c b/drivers/net/ipg.c index 2fdbde772e9..9b358f61ed7 100644 --- a/drivers/net/ipg.c +++ b/drivers/net/ipg.c @@ -472,7 +472,6 @@ static int ipg_config_autoneg(struct net_device *dev) unsigned int txflowcontrol; unsigned int rxflowcontrol; unsigned int fullduplex; - unsigned int gig; u32 mac_ctrl_val; u32 asicctrl; u8 phyctrl; @@ -489,7 +488,6 @@ static int ipg_config_autoneg(struct net_device *dev) fullduplex = 0; txflowcontrol = 0; rxflowcontrol = 0; - gig = 0; /* To accomodate a problem in 10Mbps operation, * set a global flag if PHY running in 10Mbps mode. @@ -511,7 +509,6 @@ static int ipg_config_autoneg(struct net_device *dev) break; case IPG_PC_LINK_SPEED_1000MBPS: printk("1000Mbps.\n"); - gig = 1; break; default: printk("undefined!\n"); -- GitLab From 16bb547e130bad47c16852f353f5501cf4b9b35a Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 15 Mar 2008 17:05:02 +0100 Subject: [PATCH 892/923] drivers/net/atl1/atl1_main.c: remove unused variable The variable update_rx is initialized but never used otherwise. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ type T; identifier i; constant C; @@ ( extern T i; | - T i; <+... when != i - i = C; ...+> ) // Signed-off-by: Julia Lawall Acked-by: Jay Cliburn Signed-off-by: Jeff Garzik --- drivers/net/atl1/atl1_main.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/atl1/atl1_main.c b/drivers/net/atl1/atl1_main.c index 9200ee59d85..129b8b3aa77 100644 --- a/drivers/net/atl1/atl1_main.c +++ b/drivers/net/atl1/atl1_main.c @@ -1765,15 +1765,12 @@ static irqreturn_t atl1_intr(int irq, void *data) { struct atl1_adapter *adapter = netdev_priv(data); u32 status; - u8 update_rx; int max_ints = 10; status = adapter->cmb.cmb->int_stats; if (!status) return IRQ_NONE; - update_rx = 0; - do { /* clear CMB interrupt status at once */ adapter->cmb.cmb->int_stats = 0; -- GitLab From 27ebe308af7c14aed0711e25817c6a1235bd16ff Mon Sep 17 00:00:00 2001 From: Anthony Liguori Date: Sun, 2 Mar 2008 16:37:48 -0600 Subject: [PATCH 893/923] virtio: Use spin_lock_irqsave/restore for virtio-pci virtio-pci acquires its spin lock in an interrupt context so it's necessary to use spin_lock_irqsave/restore variants. This patch fixes guest SMP when using virtio devices in KVM. Signed-off-by: Anthony Liguori Signed-off-by: Rusty Russell --- drivers/virtio/virtio_pci.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 26f787ddd5f..59a8f73dec7 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -177,6 +177,7 @@ static irqreturn_t vp_interrupt(int irq, void *opaque) struct virtio_pci_device *vp_dev = opaque; struct virtio_pci_vq_info *info; irqreturn_t ret = IRQ_NONE; + unsigned long flags; u8 isr; /* reading the ISR has the effect of also clearing it so it's very @@ -197,12 +198,12 @@ static irqreturn_t vp_interrupt(int irq, void *opaque) drv->config_changed(&vp_dev->vdev); } - spin_lock(&vp_dev->lock); + spin_lock_irqsave(&vp_dev->lock, flags); list_for_each_entry(info, &vp_dev->virtqueues, node) { if (vring_interrupt(irq, info->vq) == IRQ_HANDLED) ret = IRQ_HANDLED; } - spin_unlock(&vp_dev->lock); + spin_unlock_irqrestore(&vp_dev->lock, flags); return ret; } @@ -214,6 +215,7 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index, struct virtio_pci_device *vp_dev = to_vp_device(vdev); struct virtio_pci_vq_info *info; struct virtqueue *vq; + unsigned long flags; u16 num; int err; @@ -255,9 +257,9 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index, vq->priv = info; info->vq = vq; - spin_lock(&vp_dev->lock); + spin_lock_irqsave(&vp_dev->lock, flags); list_add(&info->node, &vp_dev->virtqueues); - spin_unlock(&vp_dev->lock); + spin_unlock_irqrestore(&vp_dev->lock, flags); return vq; @@ -274,10 +276,11 @@ static void vp_del_vq(struct virtqueue *vq) { struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev); struct virtio_pci_vq_info *info = vq->priv; + unsigned long flags; - spin_lock(&vp_dev->lock); + spin_lock_irqsave(&vp_dev->lock, flags); list_del(&info->node); - spin_unlock(&vp_dev->lock); + spin_unlock_irqrestore(&vp_dev->lock, flags); vring_del_virtqueue(vq); -- GitLab From c483934670d31e064e18967bb679c1079b54ea72 Mon Sep 17 00:00:00 2001 From: Jeremy Katz Date: Sun, 2 Mar 2008 17:00:15 -0500 Subject: [PATCH 894/923] virtio: Fix sysfs bits to have proper block symlink Fix up so that the virtio_blk devices in sysfs link correctly to their block device. This then allows them to be detected by hal, etc Signed-off-by: Jeremy Katz Signed-off-by: Rusty Russell --- drivers/block/virtio_blk.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 3b1a68d6edd..0cfbe8c594a 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -238,6 +238,7 @@ static int virtblk_probe(struct virtio_device *vdev) vblk->disk->first_minor = index_to_minor(index); vblk->disk->private_data = vblk; vblk->disk->fops = &virtblk_fops; + vblk->disk->driverfs_dev = &vdev->dev; index++; /* If barriers are supported, tell block layer that queue is ordered */ -- GitLab From bdc1681cdf1ab6a65fa935a2b3f8fc63b20c54ea Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Mon, 17 Mar 2008 22:58:15 -0500 Subject: [PATCH 895/923] virtio: handle > 2 billion page balloon targets If the host asks for a huge target towards_target() can overflow, and we up oops as we try to release more pages than we have. The simple fix is to use a 64-bit value. Signed-off-by: Rusty Russell --- drivers/virtio/virtio_balloon.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index c8a4332d113..0b3efc31ee6 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -152,7 +152,7 @@ static void virtballoon_changed(struct virtio_device *vdev) wake_up(&vb->config_change); } -static inline int towards_target(struct virtio_balloon *vb) +static inline s64 towards_target(struct virtio_balloon *vb) { u32 v; __virtio_config_val(vb->vdev, @@ -176,7 +176,7 @@ static int balloon(void *_vballoon) set_freezable(); while (!kthread_should_stop()) { - int diff; + s64 diff; try_to_freeze(); wait_event_interruptible(vb->config_change, -- GitLab From da74e89d40995600b3b07ac500084920247687ce Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Fri, 29 Feb 2008 16:24:50 +0530 Subject: [PATCH 896/923] virtio: Enable netpoll interface for netconsole logging Add a new poll_controller handler that the netpoll interface needs. This enables netconsole logging from a kvm guest over the virtio net interface. Signed-off-by: Amit Shah Signed-off-by: Rusty Russell --- drivers/net/virtio_net.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 19fd4cb0ddf..e575df83e5c 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -294,6 +294,15 @@ again: return 0; } +#ifdef CONFIG_NET_POLL_CONTROLLER +static void virtnet_netpoll(struct net_device *dev) +{ + struct virtnet_info *vi = netdev_priv(dev); + + napi_schedule(&vi->napi); +} +#endif + static int virtnet_open(struct net_device *dev) { struct virtnet_info *vi = netdev_priv(dev); @@ -336,6 +345,9 @@ static int virtnet_probe(struct virtio_device *vdev) dev->stop = virtnet_close; dev->hard_start_xmit = start_xmit; dev->features = NETIF_F_HIGHDMA; +#ifdef CONFIG_NET_POLL_CONTROLLER + dev->poll_controller = virtnet_netpoll; +#endif SET_NETDEV_DEV(dev, &vdev->dev); /* Do we support "hardware" checksums? */ -- GitLab From 4265f161b6bb7b31163671329b1142b9023bf4e3 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Fri, 14 Mar 2008 14:17:05 +0100 Subject: [PATCH 897/923] virtio: fix race in enable_cb There is a race in virtio_net, dealing with disabling/enabling the callback. I saw the following oops: kernel BUG at /space/kvm/drivers/virtio/virtio_ring.c:218! illegal operation: 0001 [#1] SMP Modules linked in: sunrpc dm_mod CPU: 2 Not tainted 2.6.25-rc1zlive-host-10623-gd358142-dirty #99 Process swapper (pid: 0, task: 000000000f85a610, ksp: 000000000f873c60) Krnl PSW : 0404300180000000 00000000002b81a6 (vring_disable_cb+0x16/0x20) R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:3 PM:0 EA:3 Krnl GPRS: 0000000000000001 0000000000000001 0000000010005800 0000000000000001 000000000f3a0900 000000000f85a610 0000000000000000 0000000000000000 0000000000000000 000000000f870000 0000000000000000 0000000000001237 000000000f3a0920 000000000010ff74 00000000002846f6 000000000fa0bcd8 Krnl Code: 00000000002b819a: a7110001 tmll %r1,1 00000000002b819e: a7840004 brc 8,2b81a6 00000000002b81a2: a7f40001 brc 15,2b81a4 >00000000002b81a6: a51b0001 oill %r1,1 00000000002b81aa: 40102000 sth %r1,0(%r2) 00000000002b81ae: 07fe bcr 15,%r14 00000000002b81b0: eb7ff0380024 stmg %r7,%r15,56(%r15) 00000000002b81b6: a7f13e00 tmll %r15,15872 Call Trace: ([<000000000fa0bcd0>] 0xfa0bcd0) [<00000000002b8350>] vring_interrupt+0x5c/0x6c [<000000000010ab08>] do_extint+0xb8/0xf0 [<0000000000110716>] ext_no_vtime+0x16/0x1a [<0000000000107e72>] cpu_idle+0x1c2/0x1e0 The problem can be triggered with a high amount of host->guest traffic. I think its the following race: poll says netif_rx_complete poll calls enable_cb enable_cb opens the interrupt mask a new packet comes, an interrupt is triggered----\ enable_cb sees that there is more work | enable_cb disables the interrupt | . V . interrupt is delivered . skb_recv_done does atomic napi test, ok some waiting disable_cb is called->check fails->bang! . poll would do napi check poll would do disable_cb The fix is to let enable_cb not disable the interrupt again, but expect the caller to do the cleanup if it returns false. In that case, the interrupt is only disabled, if the napi test_set_bit was successful. Signed-off-by: Christian Borntraeger Signed-off-by: Rusty Russell (cleaned up doco) --- drivers/net/virtio_net.c | 10 +++++++--- drivers/virtio/virtio_ring.c | 1 - include/linux/virtio.h | 5 +++-- 3 files changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index e575df83e5c..b58472cf76f 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -203,8 +203,11 @@ again: if (received < budget) { netif_rx_complete(vi->dev, napi); if (unlikely(!vi->rvq->vq_ops->enable_cb(vi->rvq)) - && netif_rx_reschedule(vi->dev, napi)) + && napi_schedule_prep(napi)) { + vi->rvq->vq_ops->disable_cb(vi->rvq); + __netif_rx_schedule(vi->dev, napi); goto again; + } } return received; @@ -278,10 +281,11 @@ again: pr_debug("%s: virtio not prepared to send\n", dev->name); netif_stop_queue(dev); - /* Activate callback for using skbs: if this fails it + /* Activate callback for using skbs: if this returns false it * means some were used in the meantime. */ if (unlikely(!vi->svq->vq_ops->enable_cb(vi->svq))) { - printk("Unlikely: restart svq failed\n"); + printk("Unlikely: restart svq race\n"); + vi->svq->vq_ops->disable_cb(vi->svq); netif_start_queue(dev); goto again; } diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 3a28c138213..aa714028641 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -232,7 +232,6 @@ static bool vring_enable_cb(struct virtqueue *_vq) vq->vring.avail->flags &= ~VRING_AVAIL_F_NO_INTERRUPT; mb(); if (unlikely(more_used(vq))) { - vq->vring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT; END_USE(vq); return false; } diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 260d1fcf29a..12c18ac1b97 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -43,8 +43,9 @@ struct virtqueue * vq: the struct virtqueue we're talking about. * @enable_cb: restart callbacks after disable_cb. * vq: the struct virtqueue we're talking about. - * This returns "false" (and doesn't re-enable) if there are pending - * buffers in the queue, to avoid a race. + * This re-enables callbacks; it returns "false" if there are pending + * buffers in the queue, to detect a possible race between the driver + * checking for more work, and enabling callbacks. * * Locking rules are straightforward: the driver is responsible for * locking. No two operations may be invoked simultaneously. -- GitLab From 4373c9327f10c362f13d5b78557f93a471211a42 Mon Sep 17 00:00:00 2001 From: "Pravin M. Bathija" Date: Fri, 14 Mar 2008 10:52:28 +0100 Subject: [PATCH 898/923] NEWEMAC: fix support for pause packets Problem Description and Fix --------------------------- When a pause packet(with destination as reserved Multicast address) is received by the EMAC hardware to control the flow of frames being transmitted by it, it is dropped by the hardware unless the reserved Multicast address is hashed in to the GAHT[1-4] registers. This code fix adds the default reserved multicast address to the GAHT[1-4] registers in the EMAC(s) present on the chip. The flow control with Pause packets will only work if the following register bits are programmed in EMAC: EMACx_MR1[APP] = 1 EMACx_RMR[BAE] = 1 EMACx_RMR[MAE] = 1 Behavior that may be observed in a running system ------------------------------------------------- A host transferring data from a PPC based system may send a Pause packet to the PPC EMAC requesting it to slow down the flow of packets. If the default reserved multicast MAC address is not programmed into the GAHT[1-4] registers this Pause packet will be dropped by PPC EMAC and no Flow Control will be done. Signed-off-by: Pravin M. Bathija Signed-off-by: Stefan Roese Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/core.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index e6c69f77259..0789802d59e 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -143,6 +143,10 @@ static inline void emac_report_timeout_error(struct emac_instance *dev, #define STOP_TIMEOUT_1000 13 #define STOP_TIMEOUT_1000_JUMBO 73 +static unsigned char default_mcast_addr[] = { + 0x01, 0x80, 0xC2, 0x00, 0x00, 0x01 +}; + /* Please, keep in sync with struct ibm_emac_stats/ibm_emac_error_stats */ static const char emac_stats_keys[EMAC_ETHTOOL_STATS_COUNT][ETH_GSTRING_LEN] = { "rx_packets", "rx_bytes", "tx_packets", "tx_bytes", "rx_packets_csum", @@ -618,6 +622,9 @@ static int emac_configure(struct emac_instance *dev) if (emac_phy_gpcs(dev->phy.mode)) emac_mii_reset_phy(&dev->phy); + /* Required for Pause packet support in EMAC */ + dev_mc_add(ndev, default_mcast_addr, sizeof(default_mcast_addr), 1); + return 0; } -- GitLab From 10d0f27c1baa4a094b4965708a15f2b0c4d65f5e Mon Sep 17 00:00:00 2001 From: Jean-Christophe Dubois Date: Thu, 13 Mar 2008 14:56:36 -0800 Subject: [PATCH 899/923] rndis_host: fix transfer size negotiation This patch should resolve a problem that's troubled support for some RNDIS peripherals. It seems to have boiled down to using a variable to establish transfer size limits before it was assigned, which caused those devices to fallback to a default "jumbogram" mode we don't support. Fix by assigning it earlier for RNDIS. Signed-off-by: Jean-Christophe Dubois [ cleanups ] Signed-off-by: David Brownell Signed-off-by: Jeff Garzik --- drivers/net/usb/rndis_host.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c index a61324757b1..727547a2899 100644 --- a/drivers/net/usb/rndis_host.c +++ b/drivers/net/usb/rndis_host.c @@ -16,10 +16,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - -// #define DEBUG // error path messages, extra info -// #define VERBOSE // more; success messages - #include #include #include @@ -318,6 +314,14 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags) net->hard_header_len += sizeof (struct rndis_data_hdr); dev->hard_mtu = net->mtu + net->hard_header_len; + dev->maxpacket = usb_maxpacket(dev->udev, dev->out, 1); + if (dev->maxpacket == 0) { + if (netif_msg_probe(dev)) + dev_dbg(&intf->dev, "dev->maxpacket can't be 0\n"); + retval = -EINVAL; + goto fail_and_release; + } + dev->rx_urb_size = dev->hard_mtu + (dev->maxpacket + 1); dev->rx_urb_size &= ~(dev->maxpacket - 1); u.init->max_transfer_size = cpu_to_le32(dev->rx_urb_size); -- GitLab From cdb346977829885cbd8b1200ca21049b1df242ad Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Thu, 13 Mar 2008 16:59:43 +0100 Subject: [PATCH 900/923] NEWEMAC: Add compatible "ibm,tah" to tah matching table Add "ibm,tah" to the compatible matching table of the ibm_newemac tah driver. The type "tah" is still preserved for compatibility reasons. New dts files should use the compatible property though. Signed-off-by: Stefan Roese Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/tah.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ibm_newemac/tah.c b/drivers/net/ibm_newemac/tah.c index 96417adec32..b023d10d7e1 100644 --- a/drivers/net/ibm_newemac/tah.c +++ b/drivers/net/ibm_newemac/tah.c @@ -154,6 +154,10 @@ static int __devexit tah_remove(struct of_device *ofdev) static struct of_device_id tah_match[] = { + { + .compatible = "ibm,tah", + }, + /* For backward compat with old DT */ { .type = "tah", }, -- GitLab From cd7e903440bad2625afa4090f34bf497593656cd Mon Sep 17 00:00:00 2001 From: Divy Le Ray Date: Thu, 13 Mar 2008 00:13:30 -0700 Subject: [PATCH 901/923] cxgb3: Fix transmit queue stop mechanism The last change in the Tx queue stop mechanism opens a window where the Tx queue might be stopped after pending credits returned. Tx credits are returned via a control message generated by the HW. It returns tx credits on demand, triggered by a completion bit set in selective transmit packet headers. The current code can lead to the Tx queue stopped with all pending credits returned, and the current frame not triggering a credit return. The Tx queue will then never be awaken. The driver could alternatively request a completion for packets that stop the queue. It's however safer at this point to go back to the pre-existing behaviour. Signed-off-by: Divy Le Ray Signed-off-by: Jeff Garzik --- drivers/net/cxgb3/sge.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c index 979f3fc5e76..db586870c5f 100644 --- a/drivers/net/cxgb3/sge.c +++ b/drivers/net/cxgb3/sge.c @@ -1107,9 +1107,15 @@ int t3_eth_xmit(struct sk_buff *skb, struct net_device *dev) } q->in_use += ndesc; - if (unlikely(credits - ndesc < q->stop_thres)) - if (USE_GTS || !should_restart_tx(q)) - t3_stop_queue(dev, qs, q); + if (unlikely(credits - ndesc < q->stop_thres)) { + t3_stop_queue(dev, qs, q); + + if (should_restart_tx(q) && + test_and_clear_bit(TXQ_ETH, &qs->txq_stopped)) { + q->restarts++; + netif_wake_queue(dev); + } + } gen = q->gen; q->unacked += ndesc; -- GitLab From ad390d2d56c167b317a38b50f6373a4775597734 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 10 Mar 2008 21:57:20 +0000 Subject: [PATCH 902/923] 3c501: Further coding style fixes Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/net/3c501.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/net/3c501.c b/drivers/net/3c501.c index 7d253686ed0..5ba4bab6d43 100644 --- a/drivers/net/3c501.c +++ b/drivers/net/3c501.c @@ -485,9 +485,7 @@ static int el_start_xmit(struct sk_buff *skb, struct net_device *dev) printk(KERN_DEBUG "%s: burped during tx load.\n", dev->name); spin_lock_irqsave(&lp->lock, flags); - } - while (1); - + } while (1); } /** @@ -612,7 +610,8 @@ static irqreturn_t el_interrupt(int irq, void *dev_id) dev->stats.tx_packets++; if (el_debug > 6) printk(KERN_DEBUG " Tx succeeded %s\n", - (txsr & TX_RDY) ? "." : "but tx is busy!"); + (txsr & TX_RDY) ? "." : + "but tx is busy!"); /* * This is safe the interrupt is atomic WRT itself. */ @@ -693,7 +692,8 @@ static void el_receive(struct net_device *dev) if (pkt_len < 60 || pkt_len > 1536) { if (el_debug) - printk(KERN_DEBUG "%s: bogus packet, length=%d\n", dev->name, pkt_len); + printk(KERN_DEBUG "%s: bogus packet, length=%d\n", + dev->name, pkt_len); dev->stats.rx_over_errors++; return; } @@ -711,7 +711,8 @@ static void el_receive(struct net_device *dev) outw(0x00, GP_LOW); if (skb == NULL) { - printk(KERN_INFO "%s: Memory squeeze, dropping packet.\n", dev->name); + printk(KERN_INFO "%s: Memory squeeze, dropping packet.\n", + dev->name); dev->stats.rx_dropped++; return; } else { @@ -748,7 +749,8 @@ static void el_reset(struct net_device *dev) if (el_debug > 2) printk(KERN_INFO "3c501 reset..."); outb(AX_RESET, AX_CMD); /* Reset the chip */ - outb(AX_LOOP, AX_CMD); /* Aux control, irq and loopback enabled */ + /* Aux control, irq and loopback enabled */ + outb(AX_LOOP, AX_CMD); { int i; for (i = 0; i < 6; i++) /* Set the station address. */ -- GitLab From 3b446c3e1592287dae117e03e61af0aa09adba6f Mon Sep 17 00:00:00 2001 From: Ayaz Abdulla Date: Mon, 10 Mar 2008 14:58:21 -0500 Subject: [PATCH 903/923] forcedeth: limit tx to 16 This is a critical patch which adds a workaround for a HW bug. The patch will limit the number of outstanding tx packets to 16. Otherwise, the HW could send out packets with bad checksums. The driver will still setup the tx packets into the ring, however, will only set the Valid bit on 16 packets at a time. Signed-off-by: Ayaz Abdulla Signed-off-by: Jeff Garzik --- drivers/net/forcedeth.c | 118 ++++++++++++++++++++++++++++++++++------ 1 file changed, 100 insertions(+), 18 deletions(-) diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 801b4d9cd97..6f7e3fde9e7 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -184,6 +184,7 @@ #define DEV_HAS_PAUSEFRAME_TX_V1 0x08000 /* device supports tx pause frames version 1 */ #define DEV_HAS_PAUSEFRAME_TX_V2 0x10000 /* device supports tx pause frames version 2 */ #define DEV_HAS_PAUSEFRAME_TX_V3 0x20000 /* device supports tx pause frames version 3 */ +#define DEV_NEED_TX_LIMIT 0x40000 /* device needs to limit tx */ enum { NvRegIrqStatus = 0x000, @@ -635,6 +636,8 @@ union ring_type { #define NV_RESTART_TX 0x1 #define NV_RESTART_RX 0x2 +#define NV_TX_LIMIT_COUNT 16 + /* statistics */ struct nv_ethtool_str { char name[ETH_GSTRING_LEN]; @@ -743,6 +746,8 @@ struct nv_skb_map { struct sk_buff *skb; dma_addr_t dma; unsigned int dma_len; + struct ring_desc_ex *first_tx_desc; + struct nv_skb_map *next_tx_ctx; }; /* @@ -827,6 +832,10 @@ struct fe_priv { union ring_type tx_ring; u32 tx_flags; int tx_ring_size; + int tx_limit; + u32 tx_pkts_in_progress; + struct nv_skb_map *tx_change_owner; + struct nv_skb_map *tx_end_flip; int tx_stop; /* vlan fields */ @@ -1707,6 +1716,9 @@ static void nv_init_tx(struct net_device *dev) np->last_tx.ex = &np->tx_ring.ex[np->tx_ring_size-1]; np->get_tx_ctx = np->put_tx_ctx = np->first_tx_ctx = np->tx_skb; np->last_tx_ctx = &np->tx_skb[np->tx_ring_size-1]; + np->tx_pkts_in_progress = 0; + np->tx_change_owner = NULL; + np->tx_end_flip = NULL; for (i = 0; i < np->tx_ring_size; i++) { if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { @@ -1720,6 +1732,9 @@ static void nv_init_tx(struct net_device *dev) } np->tx_skb[i].skb = NULL; np->tx_skb[i].dma = 0; + np->tx_skb[i].dma_len = 0; + np->tx_skb[i].first_tx_desc = NULL; + np->tx_skb[i].next_tx_ctx = NULL; } } @@ -1771,7 +1786,14 @@ static void nv_drain_tx(struct net_device *dev) } if (nv_release_txskb(dev, &np->tx_skb[i])) dev->stats.tx_dropped++; + np->tx_skb[i].dma = 0; + np->tx_skb[i].dma_len = 0; + np->tx_skb[i].first_tx_desc = NULL; + np->tx_skb[i].next_tx_ctx = NULL; } + np->tx_pkts_in_progress = 0; + np->tx_change_owner = NULL; + np->tx_end_flip = NULL; } static void nv_drain_rx(struct net_device *dev) @@ -1948,6 +1970,7 @@ static int nv_start_xmit_optimized(struct sk_buff *skb, struct net_device *dev) struct ring_desc_ex* start_tx; struct ring_desc_ex* prev_tx; struct nv_skb_map* prev_tx_ctx; + struct nv_skb_map* start_tx_ctx; /* add fragments to entries count */ for (i = 0; i < fragments; i++) { @@ -1965,6 +1988,7 @@ static int nv_start_xmit_optimized(struct sk_buff *skb, struct net_device *dev) } start_tx = put_tx = np->put_tx.ex; + start_tx_ctx = np->put_tx_ctx; /* setup the header buffer */ do { @@ -2037,6 +2061,26 @@ static int nv_start_xmit_optimized(struct sk_buff *skb, struct net_device *dev) spin_lock_irq(&np->lock); + if (np->tx_limit) { + /* Limit the number of outstanding tx. Setup all fragments, but + * do not set the VALID bit on the first descriptor. Save a pointer + * to that descriptor and also for next skb_map element. + */ + + if (np->tx_pkts_in_progress == NV_TX_LIMIT_COUNT) { + if (!np->tx_change_owner) + np->tx_change_owner = start_tx_ctx; + + /* remove VALID bit */ + tx_flags &= ~NV_TX2_VALID; + start_tx_ctx->first_tx_desc = start_tx; + start_tx_ctx->next_tx_ctx = np->put_tx_ctx; + np->tx_end_flip = np->put_tx_ctx; + } else { + np->tx_pkts_in_progress++; + } + } + /* set tx flags */ start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra); np->put_tx.ex = put_tx; @@ -2060,6 +2104,25 @@ static int nv_start_xmit_optimized(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } +static inline void nv_tx_flip_ownership(struct net_device *dev) +{ + struct fe_priv *np = netdev_priv(dev); + + np->tx_pkts_in_progress--; + if (np->tx_change_owner) { + __le32 flaglen = le32_to_cpu(np->tx_change_owner->first_tx_desc->flaglen); + flaglen |= NV_TX2_VALID; + np->tx_change_owner->first_tx_desc->flaglen = cpu_to_le32(flaglen); + np->tx_pkts_in_progress++; + + np->tx_change_owner = np->tx_change_owner->next_tx_ctx; + if (np->tx_change_owner == np->tx_end_flip) + np->tx_change_owner = NULL; + + writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); + } +} + /* * nv_tx_done: check for completed packets, release the skbs. * @@ -2147,6 +2210,10 @@ static void nv_tx_done_optimized(struct net_device *dev, int limit) dev->stats.tx_packets++; dev_kfree_skb_any(np->get_tx_ctx->skb); np->get_tx_ctx->skb = NULL; + + if (np->tx_limit) { + nv_tx_flip_ownership(dev); + } } if (unlikely(np->get_tx.ex++ == np->last_tx.ex)) np->get_tx.ex = np->first_tx.ex; @@ -5333,6 +5400,21 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i np->need_linktimer = 0; } + /* Limit the number of tx's outstanding for hw bug */ + if (id->driver_data & DEV_NEED_TX_LIMIT) { + np->tx_limit = 1; + if ((id->device == PCI_DEVICE_ID_NVIDIA_NVENET_32 || + id->device == PCI_DEVICE_ID_NVIDIA_NVENET_33 || + id->device == PCI_DEVICE_ID_NVIDIA_NVENET_34 || + id->device == PCI_DEVICE_ID_NVIDIA_NVENET_35 || + id->device == PCI_DEVICE_ID_NVIDIA_NVENET_36 || + id->device == PCI_DEVICE_ID_NVIDIA_NVENET_37 || + id->device == PCI_DEVICE_ID_NVIDIA_NVENET_38 || + id->device == PCI_DEVICE_ID_NVIDIA_NVENET_39) && + pci_dev->revision >= 0xA2) + np->tx_limit = 0; + } + /* clear phy state and temporarily halt phy interrupts */ writel(0, base + NvRegMIIMask); phystate = readl(base + NvRegAdapterControl); @@ -5563,19 +5645,19 @@ static struct pci_device_id pci_tbl[] = { }, { /* CK804 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_8), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT, }, { /* CK804 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_9), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT, }, { /* MCP04 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_10), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT, }, { /* MCP04 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_11), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT, }, { /* MCP51 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12), @@ -5587,11 +5669,11 @@ static struct pci_device_id pci_tbl[] = { }, { /* MCP55 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_NEED_TX_LIMIT, }, { /* MCP55 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_NEED_TX_LIMIT, }, { /* MCP61 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_16), @@ -5611,19 +5693,19 @@ static struct pci_device_id pci_tbl[] = { }, { /* MCP65 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_20), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_NEED_TX_LIMIT, }, { /* MCP65 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_21), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT, }, { /* MCP65 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_22), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT, }, { /* MCP65 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_23), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT, }, { /* MCP67 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_24), @@ -5659,35 +5741,35 @@ static struct pci_device_id pci_tbl[] = { }, { /* MCP77 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_32), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT, }, { /* MCP77 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_33), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT, }, { /* MCP77 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_34), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT, }, { /* MCP77 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_35), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT, }, { /* MCP79 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_36), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT, }, { /* MCP79 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_37), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT, }, { /* MCP79 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_38), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT, }, { /* MCP79 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_39), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT, }, {0,}, }; -- GitLab From 69cac988f2d8506d0b479c5ae7903b9067d7641d Mon Sep 17 00:00:00 2001 From: Grant Grundler Date: Sat, 8 Mar 2008 18:33:16 -0700 Subject: [PATCH 904/923] 2.6.25-rc4 de_stop_rxtx polling wrong This untested patch _should_ fix: "(net de2104x) Kernel panic with de2104x tulip driver on boot" http://bugzilla.kernel.org/show_bug.cgi?id=3156 But the bug submitter isn't responding. Same fix has been applied to tulip.c (several years ago) and uli526x.c (Feb 2008) drivers. [ The panic reported in the bug report was removed in a recently (march 2008) accepted patch from Ondrej Zary. ] Signed-off-by: Grant Grundler Signed-off-by: Jeff Garzik --- drivers/net/tulip/de2104x.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c index 567c62757e9..1b5edd646a8 100644 --- a/drivers/net/tulip/de2104x.c +++ b/drivers/net/tulip/de2104x.c @@ -842,7 +842,7 @@ static inline int de_is_running (struct de_private *de) static void de_stop_rxtx (struct de_private *de) { u32 macmode; - unsigned int work = 1000; + unsigned int i = 1300/100; macmode = dr32(MacMode); if (macmode & RxTx) { @@ -850,10 +850,14 @@ static void de_stop_rxtx (struct de_private *de) dr32(MacMode); } - while (--work > 0) { + /* wait until in-flight frame completes. + * Max time @ 10BT: 1500*8b/10Mbps == 1200us (+ 100us margin) + * Typically expect this loop to end in < 50 us on 100BT. + */ + while (--i) { if (!de_is_running(de)) return; - cpu_relax(); + udelay(100); } printk(KERN_WARNING "%s: timeout expired stopping DMA\n", de->dev->name); -- GitLab From 725e49c5daab0b011b80907ec21fa68f3ab78633 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Sat, 8 Mar 2008 16:58:33 +0000 Subject: [PATCH 905/923] [IOC3] Fix section missmatch LD drivers/net/built-in.o WARNING: drivers/net/built-in.o(.text+0x3468): Section mismatch in reference fro m the function ioc3_probe() to the function .devinit.text:ioc3_serial_probe() The function ioc3_probe() references the function __devinit ioc3_serial_probe(). This is often because ioc3_probe lacks a __devinit annotation or the annotation of ioc3_serial_probe is wrong. Signed-off-by: Ralf Baechle Signed-off-by: Jeff Garzik --- drivers/net/ioc3-eth.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ioc3-eth.c b/drivers/net/ioc3-eth.c index 373f72cdbe8..1f25263dc7e 100644 --- a/drivers/net/ioc3-eth.c +++ b/drivers/net/ioc3-eth.c @@ -1221,7 +1221,8 @@ static void __devinit ioc3_serial_probe(struct pci_dev *pdev, struct ioc3 *ioc3) } #endif -static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +static int __devinit ioc3_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) { unsigned int sw_physid1, sw_physid2; struct net_device *dev = NULL; -- GitLab From 44b0cda37534093fd9fefacd64d5fbb589c50795 Mon Sep 17 00:00:00 2001 From: Mitch Williams Date: Fri, 7 Mar 2008 10:32:13 -0800 Subject: [PATCH 906/923] igb: Correctly get protocol information We can't look at the socket to get protocol information. We should instead look directly at the packet, and hope there are no IPv6 option headers. Signed-off-by: Mitch Williams Signed-off-by: Auke Kok Signed-off-by: Jeff Garzik --- drivers/net/igb/igb_main.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 6a1f2309209..928ce8287e6 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -31,7 +31,6 @@ #include #include #include -#include #include #include #include @@ -2484,10 +2483,24 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter, tu_cmd |= (E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT); if (skb->ip_summed == CHECKSUM_PARTIAL) { - if (skb->protocol == htons(ETH_P_IP)) + switch (skb->protocol) { + case __constant_htons(ETH_P_IP): tu_cmd |= E1000_ADVTXD_TUCMD_IPV4; - if (skb->sk && (skb->sk->sk_protocol == IPPROTO_TCP)) - tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP; + if (ip_hdr(skb)->protocol == IPPROTO_TCP) + tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP; + break; + case __constant_htons(ETH_P_IPV6): + /* XXX what about other V6 headers?? */ + if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) + tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP; + break; + default: + if (unlikely(net_ratelimit())) + dev_warn(&adapter->pdev->dev, + "partial checksum but proto=%x!\n", + skb->protocol); + break; + } } context_desc->type_tucmd_mlhl = cpu_to_le32(tu_cmd); -- GitLab From ffea31ed1c93a599d14de484a2c5c701f4480ba3 Mon Sep 17 00:00:00 2001 From: Joakim Tjernlund Date: Thu, 6 Mar 2008 18:48:46 +0800 Subject: [PATCH 907/923] ucc_geth: use correct thread number for 10/100Mbps link Use thread number of 1 for 10/100Mbps link instead of 4. Signed-off-by: Joakim Tjernlund Signed-off-by: Li Yang Signed-off-by: Jeff Garzik --- drivers/net/ucc_geth.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index fba0811d260..8cc316653a3 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -154,8 +154,8 @@ static struct ucc_geth_info ugeth_primary_info = { .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT, .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE, .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC, - .numThreadsTx = UCC_GETH_NUM_OF_THREADS_4, - .numThreadsRx = UCC_GETH_NUM_OF_THREADS_4, + .numThreadsTx = UCC_GETH_NUM_OF_THREADS_1, + .numThreadsRx = UCC_GETH_NUM_OF_THREADS_1, .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2, .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2, }; @@ -3975,6 +3975,8 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT; ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT; ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT; + ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4; + ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4; } /* Set the bus id */ -- GitLab From 9150c979cee012eeee853d4041e133d2801c699e Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Thu, 6 Mar 2008 15:55:09 +0000 Subject: [PATCH 908/923] ioc3.c: replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: Ralf Baechle drivers/sn/ioc3.c | 22 +++++++++++----------- 1 files changed, 11 insertions(+), 11 deletions(-) Signed-off-by: Jeff Garzik --- drivers/sn/ioc3.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/sn/ioc3.c b/drivers/sn/ioc3.c index 29fcd6d0301..a0aa33dde0a 100644 --- a/drivers/sn/ioc3.c +++ b/drivers/sn/ioc3.c @@ -561,7 +561,7 @@ void ioc3_unregister_submodule(struct ioc3_submodule *is) printk(KERN_WARNING "%s: IOC3 submodule %s remove failed " "for pci_dev %s.\n", - __FUNCTION__, module_name(is->owner), + __func__, module_name(is->owner), pci_name(idd->pdev)); idd->active[is->id] = 0; if(is->irq_mask) @@ -611,7 +611,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) if ((ret = pci_enable_device(pdev))) { printk(KERN_WARNING "%s: Failed to enable IOC3 device for pci_dev %s.\n", - __FUNCTION__, pci_name(pdev)); + __func__, pci_name(pdev)); goto out; } pci_set_master(pdev); @@ -623,7 +623,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) if (ret < 0) { printk(KERN_WARNING "%s: Unable to obtain 64 bit DMA " "for consistent allocations\n", - __FUNCTION__); + __func__); } } #endif @@ -633,7 +633,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) if (!idd) { printk(KERN_WARNING "%s: Failed to allocate IOC3 data for pci_dev %s.\n", - __FUNCTION__, pci_name(pdev)); + __func__, pci_name(pdev)); ret = -ENODEV; goto out_idd; } @@ -649,7 +649,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) printk(KERN_WARNING "%s: Unable to find IOC3 resource " "for pci_dev %s.\n", - __FUNCTION__, pci_name(pdev)); + __func__, pci_name(pdev)); ret = -ENODEV; goto out_pci; } @@ -657,7 +657,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) printk(KERN_WARNING "%s: Unable to request IOC3 region " "for pci_dev %s.\n", - __FUNCTION__, pci_name(pdev)); + __func__, pci_name(pdev)); ret = -ENODEV; goto out_pci; } @@ -666,7 +666,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) printk(KERN_WARNING "%s: Unable to remap IOC3 region " "for pci_dev %s.\n", - __FUNCTION__, pci_name(pdev)); + __func__, pci_name(pdev)); ret = -ENODEV; goto out_misc_region; } @@ -709,7 +709,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) } else { printk(KERN_WARNING "%s : request_irq fails for IRQ 0x%x\n ", - __FUNCTION__, pdev->irq); + __func__, pdev->irq); } if (!request_irq(pdev->irq+2, ioc3_intr_io, IRQF_SHARED, "ioc3-io", (void *)idd)) { @@ -717,7 +717,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) } else { printk(KERN_WARNING "%s : request_irq fails for IRQ 0x%x\n ", - __FUNCTION__, pdev->irq+2); + __func__, pdev->irq+2); } } else { if (!request_irq(pdev->irq, ioc3_intr_io, IRQF_SHARED, @@ -726,7 +726,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) } else { printk(KERN_WARNING "%s : request_irq fails for IRQ 0x%x\n ", - __FUNCTION__, pdev->irq); + __func__, pdev->irq); } } @@ -769,7 +769,7 @@ static void ioc3_remove(struct pci_dev *pdev) printk(KERN_WARNING "%s: IOC3 submodule 0x%s remove failed " "for pci_dev %s.\n", - __FUNCTION__, + __func__, module_name(ioc3_submodules[id]->owner), pci_name(pdev)); idd->active[id] = 0; -- GitLab From 233f112042d0b50170212dbff99c3b34b8773cd3 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 12 Mar 2008 14:24:43 +0900 Subject: [PATCH 909/923] libata-acpi: improve dock event handling Improve ACPI hotplug handling such that dock event is handled properly. * Register handlers for dock events. * Directly detach device on EJECT_REQUEST instead of signaling hotplug event. This prevents libata from accessing severed controller and/or device. * While at it, use named constants for ACPI events and move uevent signaling inside host lock. Original patch and testing by Holger Macht. Signed-off-by: Tejun Heo Cc: Holger Macht Signed-off-by: Jeff Garzik --- drivers/ata/libata-acpi.c | 96 ++++++++++++++++++++++++++++----------- 1 file changed, 69 insertions(+), 27 deletions(-) diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 0770cb7391a..bf98a566ada 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -118,45 +118,77 @@ static void ata_acpi_associate_ide_port(struct ata_port *ap) ap->pflags |= ATA_PFLAG_INIT_GTM_VALID; } -static void ata_acpi_handle_hotplug(struct ata_port *ap, struct kobject *kobj, +static void ata_acpi_handle_hotplug(struct ata_port *ap, struct ata_device *dev, u32 event) { char event_string[12]; char *envp[] = { event_string, NULL }; - struct ata_eh_info *ehi = &ap->link.eh_info; - - if (event == 0 || event == 1) { - unsigned long flags; - spin_lock_irqsave(ap->lock, flags); - ata_ehi_clear_desc(ehi); - ata_ehi_push_desc(ehi, "ACPI event"); - ata_ehi_hotplugged(ehi); - ata_port_freeze(ap); - spin_unlock_irqrestore(ap->lock, flags); + struct ata_eh_info *ehi; + struct kobject *kobj = NULL; + int wait = 0; + unsigned long flags; + + if (!ap) + ap = dev->link->ap; + ehi = &ap->link.eh_info; + + spin_lock_irqsave(ap->lock, flags); + + switch (event) { + case ACPI_NOTIFY_BUS_CHECK: + case ACPI_NOTIFY_DEVICE_CHECK: + ata_ehi_push_desc(ehi, "ACPI event"); + ata_ehi_hotplugged(ehi); + ata_port_freeze(ap); + break; + + case ACPI_NOTIFY_EJECT_REQUEST: + ata_ehi_push_desc(ehi, "ACPI event"); + if (dev) + dev->flags |= ATA_DFLAG_DETACH; + else { + struct ata_link *tlink; + struct ata_device *tdev; + + ata_port_for_each_link(tlink, ap) + ata_link_for_each_dev(tdev, tlink) + tdev->flags |= ATA_DFLAG_DETACH; + } + + ata_port_schedule_eh(ap); + wait = 1; + break; } + if (dev) { + if (dev->sdev) + kobj = &dev->sdev->sdev_gendev.kobj; + } else + kobj = &ap->dev->kobj; + if (kobj) { sprintf(event_string, "BAY_EVENT=%d", event); kobject_uevent_env(kobj, KOBJ_CHANGE, envp); } + + spin_unlock_irqrestore(ap->lock, flags); + + if (wait) + ata_port_wait_eh(ap); } static void ata_acpi_dev_notify(acpi_handle handle, u32 event, void *data) { struct ata_device *dev = data; - struct kobject *kobj = NULL; - if (dev->sdev) - kobj = &dev->sdev->sdev_gendev.kobj; - - ata_acpi_handle_hotplug(dev->link->ap, kobj, event); + ata_acpi_handle_hotplug(NULL, dev, event); } static void ata_acpi_ap_notify(acpi_handle handle, u32 event, void *data) { struct ata_port *ap = data; - ata_acpi_handle_hotplug(ap, &ap->dev->kobj, event); + ata_acpi_handle_hotplug(ap, NULL, event); } /** @@ -191,20 +223,30 @@ void ata_acpi_associate(struct ata_host *host) else ata_acpi_associate_ide_port(ap); - if (ap->acpi_handle) - acpi_install_notify_handler (ap->acpi_handle, - ACPI_SYSTEM_NOTIFY, - ata_acpi_ap_notify, - ap); + if (ap->acpi_handle) { + acpi_install_notify_handler(ap->acpi_handle, + ACPI_SYSTEM_NOTIFY, + ata_acpi_ap_notify, ap); +#if defined(CONFIG_ACPI_DOCK) || defined(CONFIG_ACPI_DOCK_MODULE) + /* we might be on a docking station */ + register_hotplug_dock_device(ap->acpi_handle, + ata_acpi_ap_notify, ap); +#endif + } for (j = 0; j < ata_link_max_devices(&ap->link); j++) { struct ata_device *dev = &ap->link.device[j]; - if (dev->acpi_handle) - acpi_install_notify_handler (dev->acpi_handle, - ACPI_SYSTEM_NOTIFY, - ata_acpi_dev_notify, - dev); + if (dev->acpi_handle) { + acpi_install_notify_handler(dev->acpi_handle, + ACPI_SYSTEM_NOTIFY, + ata_acpi_dev_notify, dev); +#if defined(CONFIG_ACPI_DOCK) || defined(CONFIG_ACPI_DOCK_MODULE) + /* we might be on a docking station */ + register_hotplug_dock_device(dev->acpi_handle, + ata_acpi_dev_notify, dev); +#endif + } } } } -- GitLab From 916fbfb7ae5f8c8f86399794d89e6d273df8826b Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 12 Mar 2008 15:26:34 +0900 Subject: [PATCH 910/923] devres: implement pcim_iomap_regions_request_all() Some drivers need to reserve all PCI BARs to prevent other drivers misusing unoccupied BARs. pcim_iomap_regions_request_all() requests all BARs and iomap specified BARs. Signed-off-by: Tejun Heo Cc: Greg Kroah-Hartman Cc: Alan Cox Cc: Jeff Garzik Signed-off-by: Jeff Garzik --- include/linux/pci.h | 2 ++ lib/devres.c | 25 +++++++++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/include/linux/pci.h b/include/linux/pci.h index 9010f545876..b7e4b633c69 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1045,6 +1045,8 @@ void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen); void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr); void __iomem * const *pcim_iomap_table(struct pci_dev *pdev); int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name); +int pcim_iomap_regions_request_all(struct pci_dev *pdev, u16 mask, + const char *name); void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask); extern int pci_pci_problems; diff --git a/lib/devres.c b/lib/devres.c index b1d336ce7f3..edc27a5d1b7 100644 --- a/lib/devres.c +++ b/lib/devres.c @@ -297,6 +297,31 @@ int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name) } EXPORT_SYMBOL(pcim_iomap_regions); +/** + * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones + * @pdev: PCI device to map IO resources for + * @mask: Mask of BARs to iomap + * @name: Name used when requesting regions + * + * Request all PCI BARs and iomap regions specified by @mask. + */ +int pcim_iomap_regions_request_all(struct pci_dev *pdev, u16 mask, + const char *name) +{ + int request_mask = ((1 << 6) - 1) & ~mask; + int rc; + + rc = pci_request_selected_regions(pdev, request_mask, name); + if (rc) + return rc; + + rc = pcim_iomap_regions(pdev, mask, name); + if (rc) + pci_release_selected_regions(pdev, request_mask); + return rc; +} +EXPORT_SYMBOL(pcim_iomap_regions_request_all); + /** * pcim_iounmap_regions - Unmap and release PCI BARs * @pdev: PCI device to map IO resources for -- GitLab From dea55137634226fd74d5187a15dee1244ec252cb Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 11 Mar 2008 19:52:31 +0900 Subject: [PATCH 911/923] ahci: request all PCI BARs ahci is often implemented with accompanying SFF compatible interface and legacy IDE driver may attach to the legacy IO ports when the controller is already claimed by ahci and vice-versa. This patch makes ahci use pcim_iomap_regions_request_all() so that all IO regions are claimed on attach. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 6978469eb16..53f5afd9420 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -2241,7 +2241,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) return rc; - rc = pcim_iomap_regions(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); + /* AHCI controllers often implement SFF compatible interface. + * Grab all PCI BARs just in case. + */ + rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); if (rc == -EBUSY) pcim_pin_device(pdev); if (rc) -- GitLab From a22e64443f0aa4aa4e3c56a49e5c060e90752c07 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 10 Mar 2008 10:25:25 +0900 Subject: [PATCH 912/923] ahci: implement skip_host_reset parameter Under certain circumstances (SSP turned off by the BIOS) and for debugging purposes, skipping global controller reset is helpful. Add a kernel parameter for it. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 48 ++++++++++++++++++++++++++++------------------ 1 file changed, 29 insertions(+), 19 deletions(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 53f5afd9420..bbfccdbba3a 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -49,6 +49,10 @@ #define DRV_NAME "ahci" #define DRV_VERSION "3.0" +static int ahci_skip_host_reset; +module_param_named(skip_host_reset, ahci_skip_host_reset, int, 0444); +MODULE_PARM_DESC(skip_host_reset, "skip global host reset (0=don't skip, 1=skip)"); + static int ahci_enable_alpm(struct ata_port *ap, enum link_pm policy); static void ahci_disable_alpm(struct ata_port *ap); @@ -1088,29 +1092,35 @@ static int ahci_reset_controller(struct ata_host *host) ahci_enable_ahci(mmio); /* global controller reset */ - tmp = readl(mmio + HOST_CTL); - if ((tmp & HOST_RESET) == 0) { - writel(tmp | HOST_RESET, mmio + HOST_CTL); - readl(mmio + HOST_CTL); /* flush */ - } + if (!ahci_skip_host_reset) { + tmp = readl(mmio + HOST_CTL); + if ((tmp & HOST_RESET) == 0) { + writel(tmp | HOST_RESET, mmio + HOST_CTL); + readl(mmio + HOST_CTL); /* flush */ + } - /* reset must complete within 1 second, or - * the hardware should be considered fried. - */ - ssleep(1); + /* reset must complete within 1 second, or + * the hardware should be considered fried. + */ + ssleep(1); - tmp = readl(mmio + HOST_CTL); - if (tmp & HOST_RESET) { - dev_printk(KERN_ERR, host->dev, - "controller reset failed (0x%x)\n", tmp); - return -EIO; - } + tmp = readl(mmio + HOST_CTL); + if (tmp & HOST_RESET) { + dev_printk(KERN_ERR, host->dev, + "controller reset failed (0x%x)\n", tmp); + return -EIO; + } - /* turn on AHCI mode */ - ahci_enable_ahci(mmio); + /* turn on AHCI mode */ + ahci_enable_ahci(mmio); - /* some registers might be cleared on reset. restore initial values */ - ahci_restore_initial_config(host); + /* Some registers might be cleared on reset. Restore + * initial values. + */ + ahci_restore_initial_config(host); + } else + dev_printk(KERN_INFO, host->dev, + "skipping global host reset\n"); if (pdev->vendor == PCI_VENDOR_ID_INTEL) { u16 tmp16; -- GitLab From 4a38e733a75d52e84772fc00d88e32032a235e75 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 11 Mar 2008 11:35:00 +0900 Subject: [PATCH 913/923] pata_ali: use atapi_cmd_type() to determine cmd type instead of transfer size pata_ali was using qc->nbytes to determine whether a command is data transfer type or not. As now qc->nbytes can be extended by padding and draining buffers, these tests are not useful anymore. Use atapi_cmd_type() instead. Signed-off-by: Tejun Heo Cc: Alan Cox Cc: Rafael J. Wysocki Signed-off-by: Jeff Garzik --- drivers/ata/pata_ali.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c index 7e68edf3c0f..8786455c901 100644 --- a/drivers/ata/pata_ali.c +++ b/drivers/ata/pata_ali.c @@ -295,7 +295,7 @@ static void ali_lock_sectors(struct ata_device *adev) static int ali_check_atapi_dma(struct ata_queued_cmd *qc) { /* If its not a media command, its not worth it */ - if (qc->nbytes < 2048) + if (atapi_cmd_type(qc->cdb[0]) == ATAPI_MISC) return -EOPNOTSUPP; return 0; } -- GitLab From c40e7cb89f9d36924131ef708ff1f16a76611add Mon Sep 17 00:00:00 2001 From: Jose Alberto Reguero Date: Thu, 13 Mar 2008 23:22:24 +0100 Subject: [PATCH 914/923] ahci: Add Marvell 6121 SATA support Signed-off-by: Jose Alberto Reguero Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index bbfccdbba3a..17ee6ed985d 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -591,6 +591,7 @@ static const struct pci_device_id ahci_pci_tbl[] = { /* Marvell */ { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */ + { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */ /* Generic, PCI class code for AHCI */ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, @@ -665,6 +666,7 @@ static void ahci_save_initial_config(struct pci_dev *pdev, void __iomem *mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR]; u32 cap, port_map; int i; + int mv; /* make sure AHCI mode is enabled before accessing CAP */ ahci_enable_ahci(mmio); @@ -700,12 +702,16 @@ static void ahci_save_initial_config(struct pci_dev *pdev, * presence register, as bit 4 (counting from 0) */ if (hpriv->flags & AHCI_HFLAG_MV_PATA) { + if (pdev->device == 0x6121) + mv = 0x3; + else + mv = 0xf; dev_printk(KERN_ERR, &pdev->dev, "MV_AHCI HACK: port_map %x -> %x\n", - hpriv->port_map, - hpriv->port_map & 0xf); + port_map, + port_map & mv); - port_map &= 0xf; + port_map &= mv; } /* cross check port_map and cap.n_ports */ @@ -1172,9 +1178,14 @@ static void ahci_init_controller(struct ata_host *host) int i; void __iomem *port_mmio; u32 tmp; + int mv; if (hpriv->flags & AHCI_HFLAG_MV_PATA) { - port_mmio = __ahci_port_base(host, 4); + if (pdev->device == 0x6121) + mv = 2; + else + mv = 4; + port_mmio = __ahci_port_base(host, mv); writel(0, port_mmio + PORT_IRQ_MASK); -- GitLab From 3d10a15d6919488204bdb264050d156ced20d9aa Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 16 Mar 2008 22:48:08 +0000 Subject: [PATCH 915/923] hfs_bnode_find() can fail, resulting in hfs_bnode_split() breakage oops and fs corruption; the latter can happen even on valid fs in case of oom. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- fs/hfs/brec.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c index 878bf25dbc6..92fb358ce82 100644 --- a/fs/hfs/brec.c +++ b/fs/hfs/brec.c @@ -229,7 +229,7 @@ skip: static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) { struct hfs_btree *tree; - struct hfs_bnode *node, *new_node; + struct hfs_bnode *node, *new_node, *next_node; struct hfs_bnode_desc node_desc; int num_recs, new_rec_off, new_off, old_rec_off; int data_start, data_end, size; @@ -248,6 +248,17 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) new_node->type = node->type; new_node->height = node->height; + if (node->next) + next_node = hfs_bnode_find(tree, node->next); + else + next_node = NULL; + + if (IS_ERR(next_node)) { + hfs_bnode_put(node); + hfs_bnode_put(new_node); + return next_node; + } + size = tree->node_size / 2 - node->num_recs * 2 - 14; old_rec_off = tree->node_size - 4; num_recs = 1; @@ -261,6 +272,8 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) /* panic? */ hfs_bnode_put(node); hfs_bnode_put(new_node); + if (next_node) + hfs_bnode_put(next_node); return ERR_PTR(-ENOSPC); } @@ -315,8 +328,7 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) hfs_bnode_write(node, &node_desc, 0, sizeof(node_desc)); /* update next bnode header */ - if (new_node->next) { - struct hfs_bnode *next_node = hfs_bnode_find(tree, new_node->next); + if (next_node) { next_node->prev = new_node->this; hfs_bnode_read(next_node, &node_desc, 0, sizeof(node_desc)); node_desc.prev = cpu_to_be32(next_node->prev); -- GitLab From e6f1cebf71c4e7aae7dfa43414ce2631291def9f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 17 Mar 2008 22:44:53 -0700 Subject: [PATCH 916/923] [NET] endianness noise: INADDR_ANY Signed-off-by: Al Viro Signed-off-by: David S. Miller --- arch/sparc/kernel/sys_sunos.c | 2 +- arch/sparc64/kernel/sys_sunos32.c | 2 +- fs/nfs/super.c | 2 +- net/ipv4/af_inet.c | 2 +- net/ipv4/ip_sockglue.c | 2 +- net/ipv4/ipconfig.c | 9 +++++---- net/sctp/protocol.c | 10 +++++----- net/sunrpc/svc_xprt.c | 2 +- 8 files changed, 16 insertions(+), 15 deletions(-) diff --git a/arch/sparc/kernel/sys_sunos.c b/arch/sparc/kernel/sys_sunos.c index 28c187c5d9f..f5b608bbe8a 100644 --- a/arch/sparc/kernel/sys_sunos.c +++ b/arch/sparc/kernel/sys_sunos.c @@ -659,7 +659,7 @@ sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr) socket = SOCKET_I(inode); local.sin_family = AF_INET; - local.sin_addr.s_addr = INADDR_ANY; + local.sin_addr.s_addr = htonl(INADDR_ANY); /* IPPORT_RESERVED = 1024, can't find the definition in the kernel */ try_port = 1024; diff --git a/arch/sparc64/kernel/sys_sunos32.c b/arch/sparc64/kernel/sys_sunos32.c index cfc22d3fe54..e91194fe39d 100644 --- a/arch/sparc64/kernel/sys_sunos32.c +++ b/arch/sparc64/kernel/sys_sunos32.c @@ -618,7 +618,7 @@ sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr) socket = SOCKET_I(inode); local.sin_family = AF_INET; - local.sin_addr.s_addr = INADDR_ANY; + local.sin_addr.s_addr = htonl(INADDR_ANY); /* IPPORT_RESERVED = 1024, can't find the definition in the kernel */ try_port = 1024; diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 1fb38184365..bdcf6d3ef62 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -632,7 +632,7 @@ static int nfs_verify_server_address(struct sockaddr *addr) switch (addr->sa_family) { case AF_INET: { struct sockaddr_in *sa = (struct sockaddr_in *)addr; - return sa->sin_addr.s_addr != INADDR_ANY; + return sa->sin_addr.s_addr != htonl(INADDR_ANY); } case AF_INET6: { struct in6_addr *sa = &((struct sockaddr_in6 *)addr)->sin6_addr; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 09ca5293d08..0d109504ed8 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -458,7 +458,7 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) err = -EADDRNOTAVAIL; if (!sysctl_ip_nonlocal_bind && !inet->freebind && - addr->sin_addr.s_addr != INADDR_ANY && + addr->sin_addr.s_addr != htonl(INADDR_ANY) && chk_addr_ret != RTN_LOCAL && chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST) diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index de0572c8885..f72457b4b0a 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -583,7 +583,7 @@ static int do_ip_setsockopt(struct sock *sk, int level, } if (!mreq.imr_ifindex) { - if (mreq.imr_address.s_addr == INADDR_ANY) { + if (mreq.imr_address.s_addr == htonl(INADDR_ANY)) { inet->mc_index = 0; inet->mc_addr = 0; err = 0; diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 5dd938579ee..7c992fbbc2c 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -103,6 +103,7 @@ - '3' from resolv.h */ #define NONE __constant_htonl(INADDR_NONE) +#define ANY __constant_htonl(INADDR_ANY) /* * Public IP configuration @@ -1479,19 +1480,19 @@ static int __init ip_auto_config_setup(char *addrs) DBG(("IP-Config: Parameter #%d: `%s'\n", num, ip)); switch (num) { case 0: - if ((ic_myaddr = in_aton(ip)) == INADDR_ANY) + if ((ic_myaddr = in_aton(ip)) == ANY) ic_myaddr = NONE; break; case 1: - if ((ic_servaddr = in_aton(ip)) == INADDR_ANY) + if ((ic_servaddr = in_aton(ip)) == ANY) ic_servaddr = NONE; break; case 2: - if ((ic_gateway = in_aton(ip)) == INADDR_ANY) + if ((ic_gateway = in_aton(ip)) == ANY) ic_gateway = NONE; break; case 3: - if ((ic_netmask = in_aton(ip)) == INADDR_ANY) + if ((ic_netmask = in_aton(ip)) == ANY) ic_netmask = NONE; break; case 4: diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index ad0a4069b95..7a7646a9565 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -337,14 +337,14 @@ static int sctp_v4_cmp_addr(const union sctp_addr *addr1, static void sctp_v4_inaddr_any(union sctp_addr *addr, __be16 port) { addr->v4.sin_family = AF_INET; - addr->v4.sin_addr.s_addr = INADDR_ANY; + addr->v4.sin_addr.s_addr = htonl(INADDR_ANY); addr->v4.sin_port = port; } /* Is this a wildcard address? */ static int sctp_v4_is_any(const union sctp_addr *addr) { - return INADDR_ANY == addr->v4.sin_addr.s_addr; + return htonl(INADDR_ANY) == addr->v4.sin_addr.s_addr; } /* This function checks if the address is a valid address to be used for @@ -375,7 +375,7 @@ static int sctp_v4_available(union sctp_addr *addr, struct sctp_sock *sp) int ret = inet_addr_type(&init_net, addr->v4.sin_addr.s_addr); - if (addr->v4.sin_addr.s_addr != INADDR_ANY && + if (addr->v4.sin_addr.s_addr != htonl(INADDR_ANY) && ret != RTN_LOCAL && !sp->inet.freebind && !sysctl_ip_nonlocal_bind) @@ -785,8 +785,8 @@ static int sctp_inet_cmp_addr(const union sctp_addr *addr1, /* PF_INET only supports AF_INET addresses. */ if (addr1->sa.sa_family != addr2->sa.sa_family) return 0; - if (INADDR_ANY == addr1->v4.sin_addr.s_addr || - INADDR_ANY == addr2->v4.sin_addr.s_addr) + if (htonl(INADDR_ANY) == addr1->v4.sin_addr.s_addr || + htonl(INADDR_ANY) == addr2->v4.sin_addr.s_addr) return 1; if (addr1->v4.sin_addr.s_addr == addr2->v4.sin_addr.s_addr) return 1; diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index ea377e06afa..332eb47539e 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -185,7 +185,7 @@ int svc_create_xprt(struct svc_serv *serv, char *xprt_name, unsigned short port, struct svc_xprt_class *xcl; struct sockaddr_in sin = { .sin_family = AF_INET, - .sin_addr.s_addr = INADDR_ANY, + .sin_addr.s_addr = htonl(INADDR_ANY), .sin_port = htons(port), }; dprintk("svc: creating transport %s[%d]\n", xprt_name, port); -- GitLab From 0382b9c35469be273ed10fa374496a924055a3c8 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 17 Mar 2008 22:46:46 -0700 Subject: [PATCH 917/923] [PKT_SCHED]: annotate cls_u32 Signed-off-by: Al Viro Signed-off-by: David S. Miller --- include/linux/pkt_cls.h | 8 ++++---- net/sched/cls_u32.c | 8 ++++---- net/sched/em_u32.c | 2 +- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/include/linux/pkt_cls.h b/include/linux/pkt_cls.h index 28dfc61cf79..99efbed81fa 100644 --- a/include/linux/pkt_cls.h +++ b/include/linux/pkt_cls.h @@ -201,8 +201,8 @@ enum struct tc_u32_key { - __u32 mask; - __u32 val; + __be32 mask; + __be32 val; int off; int offmask; }; @@ -213,12 +213,12 @@ struct tc_u32_sel unsigned char offshift; unsigned char nkeys; - __u16 offmask; + __be16 offmask; __u16 off; short offoff; short hoff; - __u32 hmask; + __be32 hmask; struct tc_u32_key keys[0]; }; diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index b18fa95ef24..c5c16b4b6e9 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -89,7 +89,7 @@ static const struct tcf_ext_map u32_ext_map = { static struct tc_u_common *u32_list; -static __inline__ unsigned u32_hash_fold(u32 key, struct tc_u32_sel *sel, u8 fshift) +static __inline__ unsigned u32_hash_fold(__be32 key, struct tc_u32_sel *sel, u8 fshift) { unsigned h = ntohl(key & sel->hmask)>>fshift; @@ -137,7 +137,7 @@ next_knode: for (i = n->sel.nkeys; i>0; i--, key++) { - if ((*(u32*)(ptr+key->off+(off2&key->offmask))^key->val)&key->mask) { + if ((*(__be32*)(ptr+key->off+(off2&key->offmask))^key->val)&key->mask) { n = n->next; goto next_knode; } @@ -182,7 +182,7 @@ check_terminal: ht = n->ht_down; sel = 0; if (ht->divisor) - sel = ht->divisor&u32_hash_fold(*(u32*)(ptr+n->sel.hoff), &n->sel,n->fshift); + sel = ht->divisor&u32_hash_fold(*(__be32*)(ptr+n->sel.hoff), &n->sel,n->fshift); if (!(n->sel.flags&(TC_U32_VAROFFSET|TC_U32_OFFSET|TC_U32_EAT))) goto next_ht; @@ -190,7 +190,7 @@ check_terminal: if (n->sel.flags&(TC_U32_OFFSET|TC_U32_VAROFFSET)) { off2 = n->sel.off + 3; if (n->sel.flags&TC_U32_VAROFFSET) - off2 += ntohs(n->sel.offmask & *(u16*)(ptr+n->sel.offoff)) >>n->sel.offshift; + off2 += ntohs(n->sel.offmask & *(__be16*)(ptr+n->sel.offoff)) >>n->sel.offshift; off2 &= ~3; } if (n->sel.flags&TC_U32_EAT) { diff --git a/net/sched/em_u32.c b/net/sched/em_u32.c index 112796e4a7c..953f1479f7d 100644 --- a/net/sched/em_u32.c +++ b/net/sched/em_u32.c @@ -35,7 +35,7 @@ static int em_u32_match(struct sk_buff *skb, struct tcf_ematch *em, if (!tcf_valid_offset(skb, ptr, sizeof(u32))) return 0; - return !(((*(u32*) ptr) ^ key->val) & key->mask); + return !(((*(__be32*) ptr) ^ key->val) & key->mask); } static struct tcf_ematch_ops em_u32_ops = { -- GitLab From bc92dd194d05e8334b210552fbc0ac5711d72ea9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 17 Mar 2008 22:47:32 -0700 Subject: [PATCH 918/923] [SCTP]: fix misannotated __sctp_rcv_asconf_lookup() Signed-off-by: Al Viro Signed-off-by: David S. Miller --- net/sctp/input.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sctp/input.c b/net/sctp/input.c index 57fe2f81eca..812ff1756c3 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -944,7 +944,7 @@ static struct sctp_association *__sctp_rcv_init_lookup(struct sk_buff *skb, static struct sctp_association *__sctp_rcv_asconf_lookup( sctp_chunkhdr_t *ch, const union sctp_addr *laddr, - __be32 peer_port, + __be16 peer_port, struct sctp_transport **transportp) { sctp_addip_chunk_t *asconf = (struct sctp_addip_chunk *)ch; -- GitLab From 27724426a9000086993a8107a11cff276c4bd4d4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 17 Mar 2008 22:48:03 -0700 Subject: [PATCH 919/923] [SUNRPC]: net/* NULL noise Signed-off-by: Al Viro Signed-off-by: David S. Miller --- net/sunrpc/auth_gss/gss_mech_switch.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c index 61801a069ff..bce9d527af0 100644 --- a/net/sunrpc/auth_gss/gss_mech_switch.c +++ b/net/sunrpc/auth_gss/gss_mech_switch.c @@ -317,7 +317,7 @@ gss_delete_sec_context(struct gss_ctx **context_handle) if (!*context_handle) return(GSS_S_NO_CONTEXT); - if ((*context_handle)->internal_ctx_id != 0) + if ((*context_handle)->internal_ctx_id) (*context_handle)->mech_type->gm_ops ->gss_delete_sec_context((*context_handle) ->internal_ctx_id); -- GitLab From 0ff9663c88ac5efdb5c8ac21c0bd7f993a4e3849 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 17 Mar 2008 22:48:46 -0700 Subject: [PATCH 920/923] [IPV4]: ipv4_is_lbcast() misannotations Signed-off-by: Al Viro Signed-off-by: David S. Miller --- include/linux/in.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/in.h b/include/linux/in.h index 70c6df88269..4065313cd7e 100644 --- a/include/linux/in.h +++ b/include/linux/in.h @@ -265,7 +265,7 @@ static inline bool ipv4_is_local_multicast(__be32 addr) static inline bool ipv4_is_lbcast(__be32 addr) { /* limited broadcast */ - return addr == INADDR_BROADCAST; + return addr == htonl(INADDR_BROADCAST); } static inline bool ipv4_is_zeronet(__be32 addr) -- GitLab From 8e3d716cce0c186ae9c88b91cc5686b78e0fd2d4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 17 Mar 2008 22:49:16 -0700 Subject: [PATCH 921/923] xfrm: ->eth_proto is __be16 Signed-off-by: Al Viro Signed-off-by: David S. Miller --- include/net/xfrm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/net/xfrm.h b/include/net/xfrm.h index eea7785cc75..619c53bc3cd 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -277,7 +277,7 @@ extern int __xfrm_state_delete(struct xfrm_state *x); struct xfrm_state_afinfo { unsigned int family; unsigned int proto; - unsigned int eth_proto; + __be16 eth_proto; struct module *owner; const struct xfrm_type *type_map[IPPROTO_MAX]; struct xfrm_mode *mode_map[XFRM_MODE_MAX]; -- GitLab From 9534f035ee67630688447e8aac91b1d365a51913 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 17 Mar 2008 22:49:48 -0700 Subject: [PATCH 922/923] [8021Q]: vlan_dev misannotations Signed-off-by: Al Viro Signed-off-by: David S. Miller --- net/8021q/vlan_dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 77f04e49a1a..8fbcefe10c9 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -382,7 +382,7 @@ static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) vlan_dev_info(dev)->cnt_encap_on_xmit++; pr_debug("%s: proto to encap: 0x%hx\n", - __FUNCTION__, htons(veth->h_vlan_proto)); + __FUNCTION__, ntohs(veth->h_vlan_proto)); /* Construct the second two bytes. This field looks something * like: * usr_priority: 3 bits (high bits) -- GitLab From 5e226e4d9016daee170699f8a4188a5505021756 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 17 Mar 2008 22:50:23 -0700 Subject: [PATCH 923/923] [IPV4]: esp_output() misannotations Signed-off-by: Al Viro Signed-off-by: David S. Miller --- net/ipv4/esp4.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c index 091e6709f83..f3ceca31aa4 100644 --- a/net/ipv4/esp4.c +++ b/net/ipv4/esp4.c @@ -168,7 +168,7 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb) struct xfrm_encap_tmpl *encap = x->encap; struct udphdr *uh; __be32 *udpdata32; - unsigned int sport, dport; + __be16 sport, dport; int encap_type; spin_lock_bh(&x->lock); -- GitLab