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Commit 09214545 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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s390/bitops: add for_each_set_bit_inv helper 



Same helper function like for_each_set_bit in generic code.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent bffc880b

arch/s390/include/asm/bitops.h

+5 −0
Original line number Diff line number Diff line
@@ -253,6 +253,11 @@ unsigned long find_first_bit_inv(const unsigned long *addr, unsigned long size); 
unsigned long find_next_bit_inv(const unsigned long *addr, unsigned long size,

				unsigned long offset);



#define for_each_set_bit_inv(bit, addr, size)				\

	for ((bit) = find_first_bit_inv((addr), (size));		\

	     (bit) < (size);						\

	     (bit) = find_next_bit_inv((addr), (size), (bit) + 1))



static inline void set_bit_inv(unsigned long nr, volatile unsigned long *ptr)

{

	return set_bit(nr ^ (BITS_PER_LONG - 1), ptr);