diff options
| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2014-08-06 16:09:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 18:01:26 -0700 |
| commit | 5e068069319a9fb02fb14337c2cedeae5f16d812 (patch) | |
| tree | 953532fac2a7331848de5e97ccf6eee2d8cff638 /lib | |
| parent | 8397927c8045c58afc68ef839855eb5505259df3 (diff) | |
| download | lwn-5e068069319a9fb02fb14337c2cedeae5f16d812.tar.gz lwn-5e068069319a9fb02fb14337c2cedeae5f16d812.zip | |
lib: bitmap: make nbits parameter of bitmap_equal 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')
| -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 9859f38660f9..d6bb955e71cb 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -71,9 +71,9 @@ int __bitmap_full(const unsigned long *bitmap, unsigned int bits) EXPORT_SYMBOL(__bitmap_full); int __bitmap_equal(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; |