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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2015-02-13 02:02:10 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-13 05:54:14 +0300
commitf6a1f5db8d7a7a94ff07251996959d27daba4ee7 (patch)
tree60e8d219664966cab66732850ac0e40f9aa5dc5e /include
parentdf1d80a9eb16d98002673f68a7ebbe881f6e6946 (diff)
downloadlinux-f6a1f5db8d7a7a94ff07251996959d27daba4ee7.tar.xz
lib/bitmap.c: simplify bitmap_ord_to_pos
Make the return value and the ord and nbits parameters of bitmap_ord_to_pos unsigned. Also, simplify the implementation and as a side effect make the result fully defined, returning nbits for ord >= weight, in analogy with what find_{first,next}_bit does. This is a better sentinel than the former ("unofficial") 0. No current users are affected by this change. 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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/bitmap.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 95dcd2f76e1a..1e74fe7aa167 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -171,7 +171,7 @@ extern int bitmap_find_free_region(unsigned long *bitmap, unsigned int bits, int
extern void bitmap_release_region(unsigned long *bitmap, unsigned int pos, int order);
extern int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order);
extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits);
-extern int bitmap_ord_to_pos(const unsigned long *bitmap, int n, int bits);
+extern unsigned int bitmap_ord_to_pos(const unsigned long *bitmap, unsigned int ord, unsigned int nbits);
extern int bitmap_print_to_pagebuf(bool list, char *buf,
const unsigned long *maskp, int nmaskbits);