Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Update defconfigs
  [MIPS] Support for several more SNI RM models.
  [MIPS] Include <asm/bugs> to for declaration of check_bugs32.
  [MIPS] Add external declaration of pagetable_init() to pgalloc.h
  [MIPS] Make kernel_thread_helper() static
  [MIPS] Make __declare_dbe_table static and avoid it getting optimized away
  [MIPS] Use MIPS R2 instructions for bitops.
  [MIPS] signals: Share even more code.
  [MIPS] Fix CONFIG_MIPS32_N32=y CONFIG_MIPS32_O32=n build
  [MIPS] Iomap implementation.
  [MIPS] <asm/compat-signal.h> needs to include <asm/uaccess.h>.
  [MIPS] IP27: Fix warning.
  [MIPS] Fix sigset_t endianess swapping issues in 32-bit compat code.