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  */
__ffs(unsigned long word)11 static __always_inline unsigned int __ffs(unsigned long word)
12 {
13 	return __builtin_ctzl(word);
14 }
15 
16 #endif
17