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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _ASM_GENERIC_BITOPS_BUILTIN___FLS_H_3#define _ASM_GENERIC_BITOPS_BUILTIN___FLS_H_4 5/**6 * __fls - find last (most-significant) set bit in a long word7 * @word: the word to search8 *9 * Undefined if no set bit exists, so code should check against 0 first.10 */11static __always_inline unsigned int __fls(unsigned long word)12{13 return (sizeof(word) * 8) - 1 - __builtin_clzl(word);14}15 16#endif17