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| author | Rich Felker <dalias@libc.org> | 2016-03-30 00:53:03 +0300 |
|---|---|---|
| committer | Rich Felker <dalias@libc.org> | 2016-03-30 00:53:03 +0300 |
| commit | 16b02d711f4059b8338ef967064195b47cae65ea (patch) | |
| tree | 6d3e0b7629210b56f8d6cfa39184c878d8a15367 /tools/testing/radix-tree/linux/bitops/ffz.h | |
| parent | b15d53d009558d14c4f394a6d1fa2039c7f45c43 (diff) | |
| parent | f55532a0c0b8bb6148f4e07853b876ef73bc69ca (diff) | |
| download | linux-16b02d711f4059b8338ef967064195b47cae65ea.tar.xz | |
Merge tag 'v4.6-rc1'
Linux 4.6-rc1
Diffstat (limited to 'tools/testing/radix-tree/linux/bitops/ffz.h')
| -rw-r--r-- | tools/testing/radix-tree/linux/bitops/ffz.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/testing/radix-tree/linux/bitops/ffz.h b/tools/testing/radix-tree/linux/bitops/ffz.h new file mode 100644 index 000000000000..6744bd4cdf46 --- /dev/null +++ b/tools/testing/radix-tree/linux/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_ */ |