[PATCH AUTOSEL 4.9 58/99] linux/bitmap.h: fix type of nbits in bitmap_shift_right()

Sasha Levin
2019-11-16T15:52:33Z

From: Rasmus Villemoes <linux@rasmusvillemoes.dk>

[ Upstream commit d9873969fa8725dc6a5a21ab788c057fd8719751 ]

Most other bitmap API, including the OOL version __bitmap_shift_right,
take unsigned nbits. This was accidentally left out from 2fbad29917c98.

Link: http://lkml.kernel.org/r/20180818131623.8755-5-linux@rasmusvillemoes.dk
Fixes: 2fbad29917c98 ("lib: bitmap: change bitmap_shift_right to take unsigned parameters")
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reported-by: Yury Norov <ynorov@caviumnetworks.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/bitmap.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index dc56304ac829f..dec03c0dbc214 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -321,7 +321,7 @@ static __always_inline int bitmap_weight(const unsigned long *src, unsigned int
}

static inline void bitmap_shift_right(unsigned long *dst, const unsigned long *src,
- unsigned int shift, int nbits)
+ unsigned int shift, unsigned int nbits)
{
if (small_const_nbits(nbits))
*dst = (*src & BITMAP_LAST_WORD_MASK(nbits)) >> shift;
--
2.20.1