Messages in this thread Patch in this message | | | From | Paul Menzel <> | Subject | [PATCH] lib/bitmap: Make length parameter `len` unsigned | Date | Thu, 7 Jul 2022 23:50:52 +0200 |
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The length is non-negative, so make it unsigned, and adapt while condition accordingly.
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> --- lib/bitmap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/bitmap.c b/lib/bitmap.c index b18e31ea6e66..0746beb336df 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -348,14 +348,14 @@ int __bitmap_weight(const unsigned long *bitmap, unsigned int bits) } EXPORT_SYMBOL(__bitmap_weight); -void __bitmap_set(unsigned long *map, unsigned int start, int len) +void __bitmap_set(unsigned long *map, unsigned int start, unsigned int len) { unsigned long *p = map + BIT_WORD(start); const unsigned int size = start + len; int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG); unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start); - while (len - bits_to_set >= 0) { + while (len >= bits_to_set) { *p |= mask_to_set; len -= bits_to_set; bits_to_set = BITS_PER_LONG; -- 2.36.1
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