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 2f3f3a4..87e88f7 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -109,7 +109,7 @@ extern int __bitmap_andnot(unsigned long *dst, const
unsigned long *bitmap1,
extern int __bitmap_intersects(const unsigned long *bitmap1,
const unsigned long *bitmap2, unsigned int nbits);
extern int __bitmap_subset(const unsigned long *bitmap1,
- const unsigned long *bitmap2, int bits);
+ const unsigned long *bitmap2, unsigned int nbits);
extern int __bitmap_weight(const unsigned long *bitmap, int bits);
extern void bitmap_set(unsigned long *map, int i, int len);
@@ -249,7 +249,7 @@ static inline int bitmap_intersects(const unsigned long
*src1,
}
static inline int bitmap_subset(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));
diff --git a/lib/bitmap.c b/lib/bitmap.c
index e85daa9..c9bff53 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -245,9 +245,9 @@ 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;
--
1.9.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
