mirror of https://gitee.com/openkylin/linux.git
18 lines
371 B
C
18 lines
371 B
C
|
#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
|