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authorYury Norov <yury.norov@gmail.com>2022-07-01 05:54:25 -0700
committerYury Norov <yury.norov@gmail.com>2022-07-15 06:35:54 -0700
commit4dea97f8636d0514befc9fc5cf342b351b7d0e20 (patch)
tree229c6eb22cd7c99bbe8d942a8f1b84465199a2fa /lib
parente2863a78593d638d3924a6f67900c4820034f349 (diff)
lib/bitmap: change type of bitmap_weight to unsigned long
bitmap_weight() doesn't return negative values, so change it's type to unsigned long. It may help compiler to generate better code and catch bugs. Signed-off-by: Yury Norov <yury.norov@gmail.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/bitmap.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c
index 9bc80f5bf149..2b67cd657692 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -333,10 +333,9 @@ bool __bitmap_subset(const unsigned long *bitmap1,
}
EXPORT_SYMBOL(__bitmap_subset);
-int __bitmap_weight(const unsigned long *bitmap, unsigned int bits)
+unsigned long __bitmap_weight(const unsigned long *bitmap, unsigned int bits)
{
- unsigned int k, lim = bits/BITS_PER_LONG;
- int w = 0;
+ unsigned long k, w = 0, lim = bits/BITS_PER_LONG;
for (k = 0; k < lim; k++)
w += hweight_long(bitmap[k]);