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1#ifndef _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
2#define _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
3
4/**
5 * fls - find last (most-significant) bit set
6 * @x: the word to search
7 *
8 * This is defined the same way as ffs.
9 * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
10 */
11static __always_inline int fls(int x)
12{
13 return x ? sizeof(x) * 8 - __builtin_clz(x) : 0;
14}
15
16#endif