linux/bitmap.h: fix type of nbits in bitmap_shift_right()

BugLink: https://bugs.launchpad.net/bugs/1854975
[ 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>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index c0bf0570c1b0c8a8fc7dab32310b5b5f34d84d1a..898e629d86f974ea3d32399c15089d37920c7158 100644 (file)
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -364,7 +364,7 @@ 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;