From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Wed, 6 Aug 2014 23:10:05 +0000 (-0700)
Subject: lib: bitmap: make nbits parameter of bitmap_weight unsigned
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~137^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=877d9f3b63ac2e5dbc51cbcdff156433f03b3a32;p=pandora-kernel.git

lib: bitmap: make nbits parameter of bitmap_weight unsigned

The compiler can generate slightly smaller and simpler code when it
knows that "nbits" is non-negative.  Since no-one passes a negative
bit-count, this shouldn't affect the semantics.

I didn't change the return type, since that might change the semantics
of some expression containing a call to bitmap_weight(). Certainly an
int is capable of holding the result.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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