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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2014-08-06 16:09:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-06 18:01:26 -0700
commit3d6684f4e6a46f3a8263f5681e093bccbb767a1c (patch)
tree98c966485624e303a734e3a9c58ae97aea25d2bf /lib/bitmap.c
parent5e068069319a9fb02fb14337c2cedeae5f16d812 (diff)
lib: bitmap: make nbits parameter of bitmap_complement 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.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c
index d6bb955e71cb..0f2f845702eb 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -86,9 +86,9 @@ int __bitmap_equal(const unsigned long *bitmap1,
}
EXPORT_SYMBOL(__bitmap_equal);
-void __bitmap_complement(unsigned long *dst, const unsigned long *src, int bits)
+void __bitmap_complement(unsigned long *dst, const unsigned long *src, unsigned int bits)
{
- int k, lim = bits/BITS_PER_LONG;
+ unsigned int k, lim = bits/BITS_PER_LONG;
for (k = 0; k < lim; ++k)
dst[k] = ~src[k];