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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2017-02-25 12:16:31 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-03-22 08:29:01 +0100 |
| commit | 09214545c4a40943ecb6cedc511cd4bd709c85a6 (patch) | |
| tree | 839696e1ad8d39d7c1a72e50ceeec53cb892319f /arch/s390/include/asm/bitops.h | |
| parent | Merge branch 'guarded-storage' into 'features' to make merging with (diff) | |
| download | linux-dev-09214545c4a40943ecb6cedc511cd4bd709c85a6.tar.xz linux-dev-09214545c4a40943ecb6cedc511cd4bd709c85a6.zip | |
s390/bitops: add for_each_set_bit_inv helper
Same helper function like for_each_set_bit in generic code.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/bitops.h')
| -rw-r--r-- | arch/s390/include/asm/bitops.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index d92047da5ccb..e7a185407182 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -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); |