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https://github.com/torvalds/linux
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Tip revision: a3b22b9f11d9fbc48b0291ea92259a5a810e9438 authored by Linus Torvalds on 18 February 2019, 02:46:40 UTC
Linux 5.0-rc7
Tip revision: a3b22b9
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 set
 * @x: the word to search
 *
 * This is defined the same way as
 * the libc and compiler builtin ffs routines, therefore
 * differs in spirit from the above ffz (man ffs).
 */
static __always_inline int ffs(int x)
{
	return __builtin_ffs(x);
}

#endif
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