Patch against SSB.. v15

Heya,

This is patch from Jim from Google. He should be on this mailing list but is wrestling the tools - in the meantime he gave me the patch so sending on his behalf. Also expanded the commit to include Fixes..

This fixes 32-bit builds.

On 64-bit builds the binary exactly the same.

 arch/x86/include/asm/nospec-branch.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Jim Mattson (1):
x86/cpu: Make alternative_msr_write work for 32-bit code