diff options
Diffstat (limited to 'include/asm-generic/bitops/ffz.h')
| -rw-r--r-- | include/asm-generic/bitops/ffz.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-generic/bitops/ffz.h b/include/asm-generic/bitops/ffz.h new file mode 100644 index 0000000000..0d010085fd --- /dev/null +++ b/include/asm-generic/bitops/ffz.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#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_ */ |