lib/bitmap.c: change prototype of bitmap_copy_le

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>

include/linux/bitmap.h

@@ -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 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 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 int bitmap_print_to_pagebuf(bool list, char *buf,
 				   const unsigned long *maskp, int nmaskbits);

lib/bitmap.c

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