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| author | Tony Lindgren <tony@atomide.com> | 2021-07-27 11:25:08 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2021-07-27 11:25:08 +0300 |
| commit | 353b7a55dcaf5fb8758e09ebe2ddf5f3adbac7c5 (patch) | |
| tree | 081200957b3d8925cbe913020d45a4e3ba61a7a3 /tools/include/linux/bitmap.h | |
| parent | 3ff340e24c9dd5cff9fc07d67914c5adf67f80d6 (diff) | |
| parent | c68ef4ad180e09805fa46965d15e1dfadf09ffa5 (diff) | |
| download | cachepc-linux-353b7a55dcaf5fb8758e09ebe2ddf5f3adbac7c5.tar.gz cachepc-linux-353b7a55dcaf5fb8758e09ebe2ddf5f3adbac7c5.zip | |
Merge branch 'fixes-v5.14' into fixes
Diffstat (limited to 'tools/include/linux/bitmap.h')
| -rw-r--r-- | tools/include/linux/bitmap.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h index 330dbf7509cc..9d959bc24859 100644 --- a/tools/include/linux/bitmap.h +++ b/tools/include/linux/bitmap.h @@ -18,6 +18,8 @@ int __bitmap_and(unsigned long *dst, const unsigned long *bitmap1, int __bitmap_equal(const unsigned long *bitmap1, const unsigned long *bitmap2, unsigned int bits); void bitmap_clear(unsigned long *map, unsigned int start, int len); +int __bitmap_intersects(const unsigned long *bitmap1, + const unsigned long *bitmap2, unsigned int bits); #define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1))) #define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1))) @@ -170,4 +172,13 @@ static inline int bitmap_equal(const unsigned long *src1, return __bitmap_equal(src1, src2, nbits); } +static inline int bitmap_intersects(const unsigned long *src1, + const unsigned long *src2, unsigned int nbits) +{ + if (small_const_nbits(nbits)) + return ((*src1 & *src2) & BITMAP_LAST_WORD_MASK(nbits)) != 0; + else + return __bitmap_intersects(src1, src2, nbits); +} + #endif /* _PERF_BITOPS_H */ |