File: builtin-__ffs.h

package info (click to toggle)
linux 4.19.16-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 955,852 kB
  • sloc: ansic: 16,748,305; asm: 271,259; makefile: 38,297; sh: 38,030; perl: 28,295; python: 21,019; cpp: 5,063; yacc: 4,648; lex: 2,583; awk: 1,385; ruby: 25; sed: 5
file content (16 lines) | stat: -rw-r--r-- 379 bytes parent folder | download | duplicates (17) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
/* 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