From 5ebe7900f814ba1d7564cd91c06b1826bfd4496a Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Fri, 13 Feb 2015 14:36:00 -0800 Subject: lib/bitmap.c: elide bitmap_copy_le on little-endian On little-endian, there's no reason to have an extra, presumably less efficient, way of copying a bitmap. Signed-off-by: Rasmus Villemoes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bitmap.h | 4 ++++ lib/bitmap.c | 2 ++ 2 files changed, 6 insertions(+) diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index ccb3fddab..ef5af36fa 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -157,7 +157,11 @@ extern void bitmap_fold(unsigned long *dst, const unsigned long *orig, extern int bitmap_find_free_region(unsigned long *bitmap, unsigned int bits, int order); 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); +#ifdef __BIG_ENDIAN extern void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits); +#else +#define bitmap_copy_le bitmap_copy +#endif extern unsigned int bitmap_ord_to_pos(const unsigned long *bitmap, unsigned int ord, unsigned int nbits); #define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG)) diff --git a/lib/bitmap.c b/lib/bitmap.c index 2ca4b9aea..b50030955 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -1106,6 +1106,7 @@ EXPORT_SYMBOL(bitmap_allocate_region); * * Require nbits % BITS_PER_LONG == 0. */ +#ifdef __BIG_ENDIAN void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits) { unsigned int i; @@ -1118,3 +1119,4 @@ void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int n } } EXPORT_SYMBOL(bitmap_copy_le); +#endif -- cgit v1.2.3