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lib/bitmap.c: change prototype of bitmap_copy_le

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Make the prototype of bitmap_copy_le the same as bitmap_copy's.  All other
bitmap_* functions take unsigned long* parameters; there's no reason this
should be special.

The only current user is the static inline uwb_mas_bm_copy_le, which
already does the void* laundering, so the end users can pass their u8 or
__le32 buffers without a cast.

Furthermore, this allows us to simply let bitmap_copy_le be an alias for
bitmap_copy on little-endian; see next patch.

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>
This commit is contained in:
Rasmus Villemoes 2015-02-13 14:35:57 -08:00 committed by Linus Torvalds
parent db3ecdee1c
commit 9b6c2d2e2b
2 changed files with 5 additions and 6 deletions
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2
include/linux/bitmap.h
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@ -170,7 +170,7 @@ 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 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 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 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 void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits);
extern unsigned int bitmap_ord_to_pos(const unsigned long *bitmap, unsigned int ord, unsigned int nbits); 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, extern int bitmap_print_to_pagebuf(bool list, char *buf,
const unsigned long *maskp, int nmaskbits); const unsigned long *maskp, int nmaskbits);

9
lib/bitmap.c
View File

@ -1191,16 +1191,15 @@ EXPORT_SYMBOL(bitmap_allocate_region);
* *
* Require nbits % BITS_PER_LONG == 0. * Require nbits % BITS_PER_LONG == 0.
*/ */
void bitmap_copy_le(void *dst, const unsigned long *src, int nbits) void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits)
{ {
unsigned long *d = dst; unsigned int i;
int i;
for (i = 0; i < nbits/BITS_PER_LONG; i++) { for (i = 0; i < nbits/BITS_PER_LONG; i++) {
if (BITS_PER_LONG == 64) if (BITS_PER_LONG == 64)
d[i] = cpu_to_le64(src[i]); dst[i] = cpu_to_le64(src[i]);
else else
d[i] = cpu_to_le32(src[i]); dst[i] = cpu_to_le32(src[i]);
} }
} }
EXPORT_SYMBOL(bitmap_copy_le); EXPORT_SYMBOL(bitmap_copy_le);