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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2014-08-07 03:10:01 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-07 05:01:26 +0400
commit6dfe9799c2a03d225316a3e959b0447f3f50303e (patch)
treed6783674de2f71bba8664e9e582f5d598bc45647 /include/linux/bitmap.h
parent2f9305eb31097fdd3dc86daca65d8097d1fcf2ff (diff)
downloadlinux-6dfe9799c2a03d225316a3e959b0447f3f50303e.tar.xz
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.h4
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;