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 <li...@rasmusvillemoes.dk>
---
include/linux/bitmap.h | 4 ++--
lib/bitmap.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 7048782..2f3f3a4 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;
diff --git a/lib/bitmap.c b/lib/bitmap.c
index 0320737..e85daa9 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -230,9 +230,9 @@ int __bitmap_andnot(unsigned long *dst, const unsigned long
*bitmap1,
EXPORT_SYMBOL(__bitmap_andnot);
int __bitmap_intersects(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 1;
--
1.9.2
--
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