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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 18:17:01 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 18:17:01 +0200 |
| commit | cb41838bbc4403f7270a94b93a9a0d9fc9c2e7ea (patch) | |
| tree | 0f359975ccad4ac72e86b8edf1924c076e74bd89 /arch/ia64 | |
| parent | Merge branch 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... (diff) | |
| parent | x86, hweight: Use a 32-bit popcnt for __arch_hweight32() (diff) | |
| download | linux-cb41838bbc4403f7270a94b93a9a0d9fc9c2e7ea.tar.xz linux-cb41838bbc4403f7270a94b93a9a0d9fc9c2e7ea.zip | |
Merge branch 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, hweight: Use a 32-bit popcnt for __arch_hweight32()
arch, hweight: Fix compilation errors
x86: Add optimized popcnt variants
bitops: Optimize hweight() by making use of compile-time evaluation
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/include/asm/bitops.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h index 6ebc229a1c51..9da3df6f1a52 100644 --- a/arch/ia64/include/asm/bitops.h +++ b/arch/ia64/include/asm/bitops.h @@ -437,17 +437,18 @@ __fls (unsigned long x) * hweightN: returns the hamming weight (i.e. the number * of bits set) of a N-bit word */ -static __inline__ unsigned long -hweight64 (unsigned long x) +static __inline__ unsigned long __arch_hweight64(unsigned long x) { unsigned long result; result = ia64_popcnt(x); return result; } -#define hweight32(x) (unsigned int) hweight64((x) & 0xfffffffful) -#define hweight16(x) (unsigned int) hweight64((x) & 0xfffful) -#define hweight8(x) (unsigned int) hweight64((x) & 0xfful) +#define __arch_hweight32(x) ((unsigned int) __arch_hweight64((x) & 0xfffffffful)) +#define __arch_hweight16(x) ((unsigned int) __arch_hweight64((x) & 0xfffful)) +#define __arch_hweight8(x) ((unsigned int) __arch_hweight64((x) & 0xfful)) + +#include <asm-generic/bitops/const_hweight.h> #endif /* __KERNEL__ */ |