diff options
| author | Zheng Da <zhengda1936@gmail.com> | 2009-12-06 05:26:23 +0100 |
|---|---|---|
| committer | Zheng Da <zhengda1936@gmail.com> | 2009-12-06 05:26:23 +0100 |
| commit | 8a6d48c0542876eb3acfc0970c0ab7872db08d5f (patch) | |
| tree | 496e78bc728317ea779781b92f897d16936ee231 /libdde_linux26/contrib/include/asm-generic/bitops/ffz.h | |
| parent | b4bffcfcdf3ab7a55d664e9aa5907f88da503f38 (diff) | |
check in the original version of dde linux26.
Diffstat (limited to 'libdde_linux26/contrib/include/asm-generic/bitops/ffz.h')
| -rw-r--r-- | libdde_linux26/contrib/include/asm-generic/bitops/ffz.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libdde_linux26/contrib/include/asm-generic/bitops/ffz.h b/libdde_linux26/contrib/include/asm-generic/bitops/ffz.h new file mode 100644 index 00000000..6744bd4c --- /dev/null +++ b/libdde_linux26/contrib/include/asm-generic/bitops/ffz.h @@ -0,0 +1,12 @@ +#ifndef _ASM_GENERIC_BITOPS_FFZ_H_ +#define _ASM_GENERIC_BITOPS_FFZ_H_ + +/* + * ffz - find first zero in word. + * @word: The word to search + * + * Undefined if no zero exists, so code should check against ~0UL first. + */ +#define ffz(x) __ffs(~(x)) + +#endif /* _ASM_GENERIC_BITOPS_FFZ_H_ */ |