Merge branch 'x86/asm' into locking/core

We need the ASM_UNREACHABLE() macro for a dependent patch.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --cc arch/x86/Kconfig.debug
Simple merge

diff --cc arch/x86/entry/entry_64.S
Simple merge

diff --cc arch/x86/include/asm/io.h
Simple merge

diff --cc arch/x86/include/asm/processor.h
Simple merge

diff --cc include/linux/compiler-gcc.h
Simple merge

diff --cc include/linux/compiler.h
Simple merge