Merge tag 'mips_4.19_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Paul Burton:

  - Fix microMIPS build failures by adding a .insn directive to the
    barrier_before_unreachable() asm statement in order to convince the
    toolchain that the asm statement is a valid branch target rather
    than a bogus attempt to switch ISA.

  - Clean up our declarations of TLB functions that we overwrite with
    generated code in order to prevent the compiler making assumptions
    about alignment that cause microMIPS kernels built with GCC 7 &
    above to die early during boot.

  - Fix up a regression for MIPS32 kernels which slipped into the main
    MIPS pull for 4.19, causing CONFIG_32BIT=y kernels to contain
    inappropriate MIPS64 instructions.

  - Extend our existing workaround for MIPSr6 builds that end up using
    the __multi3 intrinsic to GCC 7 & below, rather than just GCC 7.

* tag 'mips_4.19_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: lib: Provide MIPS64r6 __multi3() for GCC < 7
  MIPS: Workaround GCC __builtin_unreachable reordering bug
  compiler.h: Allow arch-specific asm/compiler.h
  MIPS: Avoid move psuedo-instruction whilst using MIPS_ISA_LEVEL
  MIPS: Consistently declare TLB functions
  MIPS: Export tlbmiss_handler_setup_pgd near its definition

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index 4426e9687d89..0a0ea5066fc0 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -841,6 +841,14 @@ config REFCOUNT_FULL
           against various use-after-free conditions that can be used in
           security flaw exploits.
 
+config HAVE_ARCH_COMPILER_H
+        bool
+        help
+          An architecture can select this if it provides an
+          asm/compiler.h header that should be included after
+          linux/compiler-*.h in order to override macro definitions that those
+          headers generally provide.
+
 config HAVE_ARCH_PREL32_RELOCATIONS
         bool
         help