diff options
| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2014-08-06 16:10:03 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-11 10:59:30 +0200 |
| commit | 720452c7d817267bbde3c0f2c3fea459b9339a4d (patch) | |
| tree | 22b4df4fb43b42cfec4dbc0d194adc4d91789874 /lib/bitmap.c | |
| parent | 7cf359885fd163e66e1e1aeb68fb3c0881ea7bce (diff) | |
lib: bitmap: make nbits parameter of bitmap_subset 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 'lib/bitmap.c')
| -rw-r--r-- | lib/bitmap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index 0e2ca4e37..9f157d2c5 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -249,9 +249,9 @@ int __bitmap_intersects(const unsigned long *bitmap1, EXPORT_SYMBOL(__bitmap_intersects); int __bitmap_subset(const unsigned long *bitmap1, - const unsigned long *bitmap2, int bits) + const unsigned long *bitmap2, unsigned int bits) { - int k, lim = bits/BITS_PER_LONG; + unsigned int k, lim = bits/BITS_PER_LONG; for (k = 0; k < lim; ++k) if (bitmap1[k] & ~bitmap2[k]) return 0; |