Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / include / asm-generic / bitops / builtin-fls.h
blob62daf940989df977d94be029beafcca21a777338
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
3 #define _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
5 /**
6 * fls - find last (most-significant) bit set
7 * @x: the word to search
9 * This is defined the same way as ffs.
10 * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
12 static __always_inline int fls(int x)
14 return x ? sizeof(x) * 8 - __builtin_clz(x) : 0;
17 #endif