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| author | Borislav Petkov <bp@suse.de> | 2014-07-11 14:43:38 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-07-12 04:28:51 +0400 |
| commit | b08ee5f7e4135d64b8edd769367f8964a725122e (patch) | |
| tree | c23c93542548c4ef5da24ed60d3c5dc038b3b607 /arch/x86/include/asm/cmpxchg_64.h | |
| parent | 891715793f0451e5114d200be932ac14ce8521a3 (diff) | |
| download | linux-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.h | 2 |
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); \ |