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authorLinus Torvalds <torvalds@linux-foundation.org>2014-03-31 12:27:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-03-31 12:27:32 -0700
commitd9fcca40eba3266c1c8b6d9d7ab163861ad23b66 (patch)
tree7d69afe258fa57a844b293b4c84c8369ae15b15a /arch/x86/Makefile
parent7cc3afdf43ffb703db831292f3816d909fd44767 (diff)
parent7a5917e9787dd73284f04e35c3cfdb39a67bf0d5 (diff)
downloadlwn-d9fcca40eba3266c1c8b6d9d7ab163861ad23b66.tar.gz
lwn-d9fcca40eba3266c1c8b6d9d7ab163861ad23b66.zip
Merge branch 'x86-hash-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 hashing changes from Ingo Molnar: "Small fixes and cleanups to the librarized arch_fast_hash() methods, used by the net/openvswitch code" * 'x86-hash-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, hash: Simplify switch, add __init annotation x86, hash: Swap arguments passed to crc32_u32() x86, hash: Fix build failure with older binutils
Diffstat (limited to 'arch/x86/Makefile')
-rw-r--r--arch/x86/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index a414b1471ffc..3b9348a0c1a4 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -152,6 +152,7 @@ cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTI
# does binutils support specific instructions?
asinstr := $(call as-instr,fxsaveq (%rax),-DCONFIG_AS_FXSAVEQ=1)
+asinstr += $(call as-instr,crc32l %eax$(comma)%eax,-DCONFIG_AS_CRC32=1)
avx_instr := $(call as-instr,vxorps %ymm0$(comma)%ymm1$(comma)%ymm2,-DCONFIG_AS_AVX=1)
avx2_instr :=$(call as-instr,vpbroadcastb %xmm0$(comma)%ymm1,-DCONFIG_AS_AVX2=1)