Cregit: Linux 6.18: builtin-_

Contributors: 4
Author	Tokens	Token Proportion	Commits	Commit Proportion
Catalin Marinas	37	92.50%	1	25.00%
Thorsten Blum	1	2.50%	1	25.00%
Kees Cook	1	2.50%	1	25.00%
Greg Kroah-Hartman	1	2.50%	1	25.00%
Total	40		4

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_BITOPS_BUILTIN___FLS_H_
#define _ASM_GENERIC_BITOPS_BUILTIN___FLS_H_

/**
 * __fls - find last (most-significant) set bit in a long word
 * @word: the word to search
 *
 * Undefined if no set bit exists, so code should check against 0 first.
 */
static __always_inline __attribute_const__ unsigned int __fls(unsigned long word)
{
	return (sizeof(word) * 8) - 1 - __builtin_clzl(word);
}

#endif

builtin-__fls.h