[PATCH 4.19 168/306] linux/bitmap.h: fix type of nbits in bitmap_shift_right()
From: Greg Kroah-Hartman
Date: Wed Nov 27 2019 - 16:02:11 EST
From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
[ 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@xxxxxxxxxxxxxxxxxx
Fixes: 2fbad29917c98 ("lib: bitmap: change bitmap_shift_right to take unsigned parameters")
Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Reported-by: Yury Norov <ynorov@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Cc: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Cc: Sudeep Holla <sudeep.holla@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 a9805bacbd7ca..b71a033c781ef 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -403,7 +403,7 @@ static __always_inline void bitmap_clear(unsigned long *map, unsigned int start,
}
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