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| author |   Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2014-08-06 16:10:01 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 18:01:26 -0700 |
| commit | 6dfe9799c2a03d225316a3e959b0447f3f50303e (patch) | |
| tree | d6783674de2f71bba8664e9e582f5d598bc45647 /include/linux/bitmap.h | |
| parent | lib: bitmap: make nbits parameter of bitmap_{and,or,xor,andnot} unsigned (diff) | |
| download | linux-dev-6dfe9799c2a03d225316a3e959b0447f3f50303e.tar.xz linux-dev-6dfe9799c2a03d225316a3e959b0447f3f50303e.zip | |
lib: bitmap: make nbits parameter of bitmap_intersects unsigned
The compiler can generate slightly smaller and simpler code when it
knows that "nbits" is non-negative. Since no-one passes a negative
bit-count, this shouldn't affect the semantics.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/bitmap.h')
| -rw-r--r-- | include/linux/bitmap.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 7048782fe5b9..2f3f3a4d5996 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -107,7 +107,7 @@ extern void __bitmap_xor(unsigned long *dst, const unsigned long *bitmap1, extern int __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1, const unsigned long *bitmap2, unsigned int nbits); extern int __bitmap_intersects(const unsigned long *bitmap1, - const unsigned long *bitmap2, int bits); + const unsigned long *bitmap2, unsigned int nbits); extern int __bitmap_subset(const unsigned long *bitmap1, const unsigned long *bitmap2, int bits); extern int __bitmap_weight(const unsigned long *bitmap, int bits); @@ -240,7 +240,7 @@ static inline int bitmap_equal(const unsigned long *src1, } static inline int bitmap_intersects(const unsigned long *src1, - const unsigned long *src2, int nbits) + const unsigned long *src2, unsigned int nbits) { if (small_const_nbits(nbits)) return ((*src1 & *src2) & BITMAP_LAST_WORD_MASK(nbits)) != 0; |