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authorBorislav Petkov <bp@suse.de>2014-07-11 14:43:38 +0400
committerH. Peter Anvin <hpa@linux.intel.com>2014-07-12 04:28:51 +0400
commitb08ee5f7e4135d64b8edd769367f8964a725122e (patch)
treec23c93542548c4ef5da24ed60d3c5dc038b3b607 /arch/x86/include/asm/cmpxchg_64.h
parent891715793f0451e5114d200be932ac14ce8521a3 (diff)
downloadlinux-b08ee5f7e4135d64b8edd769367f8964a725122e.tar.xz
x86: Simplify __HAVE_ARCH_CMPXCHG tests
Both the 32-bit and 64-bit cmpxchg.h header define __HAVE_ARCH_CMPXCHG and there's ifdeffery which checks it. But since both bitness define it, we can just as well move it up to the main cmpxchg header and simpify a bit of code in doing that. Signed-off-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/20140711104338.GB17083@pd.tnic Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include/asm/cmpxchg_64.h')
-rw-r--r--arch/x86/include/asm/cmpxchg_64.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/include/asm/cmpxchg_64.h b/arch/x86/include/asm/cmpxchg_64.h
index 614be87f1a9b..1af94697aae5 100644
--- a/arch/x86/include/asm/cmpxchg_64.h
+++ b/arch/x86/include/asm/cmpxchg_64.h
@@ -6,8 +6,6 @@ static inline void set_64bit(volatile u64 *ptr, u64 val)
*ptr = val;
}
-#define __HAVE_ARCH_CMPXCHG 1
-
#define cmpxchg64(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \