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Jiri Olsa
02bc11de56
Adding for_each_clear_bit macro plus all its the necessary backbone functions. Taken from related kernel code. It will be used in following patch. Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
13 lines
286 B
C
13 lines
286 B
C
#ifndef _ASM_GENERIC_BITOPS_FFZ_H_
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#define _ASM_GENERIC_BITOPS_FFZ_H_
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/*
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* ffz - find first zero in word.
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* @word: The word to search
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*
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* Undefined if no zero exists, so code should check against ~0UL first.
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*/
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#define ffz(x) __ffs(~(x))
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#endif /* _ASM_GENERIC_BITOPS_FFZ_H_ */
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