mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 19:53:59 +08:00
176d8b0c27
This patch introduces the C-language equivalent of the function: unsigned long ffz(unsigned long word); In include/asm-generic/bitops/ffz.h This code largely copied from: include/asm-parisc/bitops.h Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
13 lines
286 B
C
13 lines
286 B
C
#ifndef _ASM_GENERIC_BITOPS_FFZ_H_
|
|
#define _ASM_GENERIC_BITOPS_FFZ_H_
|
|
|
|
/*
|
|
* ffz - find first zero in word.
|
|
* @word: The word to search
|
|
*
|
|
* Undefined if no zero exists, so code should check against ~0UL first.
|
|
*/
|
|
#define ffz(x) __ffs(~(x))
|
|
|
|
#endif /* _ASM_GENERIC_BITOPS_FFZ_H_ */
|