Merge branch 'linus' into core/objtool, to pick up dependent fixes

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

diff --cc arch/x86/kernel/Makefile
Simple merge

diff --cc arch/x86/kernel/head_64.S
Simple merge

diff --cc arch/x86/xen/xen-head.S
Simple merge

diff --cc tools/objtool/check.c
Simple merge