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https://github.com/torvalds/linux
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Tip revision: e71ba9452f0b5b2e8dc8aa5445198cd9214a6a62 authored by Linus Torvalds on 03 January 2021, 23:55:30 UTC
Linux 5.11-rc2
Tip revision: e71ba94
builtin-__ffs.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_
#define _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_

/**
 * __ffs - find first bit in word.
 * @word: The word to search
 *
 * Undefined if no bit exists, so code should check against 0 first.
 */
static __always_inline unsigned long __ffs(unsigned long word)
{
	return __builtin_ctzl(word);
}

#endif
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