lib: bitmap: make nbits parameter of bitmap_full 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>

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/bitmap.c b/lib/bitmap.c
index 378911001442..9859f38660f9 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -55,9 +55,9 @@ int __bitmap_empty(const unsigned long *bitmap, unsigned int bits)
 }
 EXPORT_SYMBOL(__bitmap_empty);
 
-int __bitmap_full(const unsigned long *bitmap, int bits)
+int __bitmap_full(const unsigned long *bitmap, 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 (~bitmap[k])
                         return 0;