GNU Linux-libre 4.19.245-gnu1
[releases.git] / include / asm-generic / bitops / builtin-__ffs.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_
3 #define _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_
4
5 /**
6  * __ffs - find first bit in word.
7  * @word: The word to search
8  *
9  * Undefined if no bit exists, so code should check against 0 first.
10  */
11 static __always_inline unsigned long __ffs(unsigned long word)
12 {
13         return __builtin_ctzl(word);
14 }
15
16 #endif