From ccbe329bcd87924baed96474ec0a6725e3957897 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Wed, 17 Sep 2008 16:34:03 +0100 Subject: bitmap: add bitmap_copy_le() bitmap_copy_le() copies a bitmap, putting the bits into little-endian order (i.e., each unsigned long word in the bitmap is put into little-endian order). The UWB stack used bitmaps to manage Medium Access Slot availability, and these bitmaps need to be written to the hardware in LE order. Signed-off-by: David Vrabel --- include/linux/bitmap.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/bitmap.h') diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 89781fd48859..5379913aca52 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -130,6 +130,7 @@ extern void bitmap_fold(unsigned long *dst, const unsigned long *orig, extern int bitmap_find_free_region(unsigned long *bitmap, int bits, int order); extern void bitmap_release_region(unsigned long *bitmap, int pos, int order); extern int bitmap_allocate_region(unsigned long *bitmap, int pos, int order); +extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits); #define BITMAP_LAST_WORD_MASK(nbits) \ ( \ -- cgit v1.2.3 From c4596435404976b0ded9cdf18b456ca2e1408ddd Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Sat, 18 Oct 2008 20:28:21 -0700 Subject: bitmask: remove bitmap_scnprintf_len() bitmap_scnprintf_len() is not used now, so we remove it. Otherwise we have to maintain it and make its return value always equal to bitmap_scnprintf()'s return value. Signed-off-by: Lai Jiangshan Cc: Alexey Dobriyan Cc: Paul Menage Cc: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bitmap.h | 1 - lib/bitmap.c | 11 ----------- 2 files changed, 12 deletions(-) (limited to 'include/linux/bitmap.h') diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 89781fd48859..1abfe664c444 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -110,7 +110,6 @@ extern int __bitmap_weight(const unsigned long *bitmap, int bits); extern int bitmap_scnprintf(char *buf, unsigned int len, const unsigned long *src, int nbits); -extern int bitmap_scnprintf_len(unsigned int nr_bits); extern int __bitmap_parse(const char *buf, unsigned int buflen, int is_user, unsigned long *dst, int nbits); extern int bitmap_parse_user(const char __user *ubuf, unsigned int ulen, diff --git a/lib/bitmap.c b/lib/bitmap.c index 06fb57c86de0..482df94ea21e 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -315,17 +315,6 @@ int bitmap_scnprintf(char *buf, unsigned int buflen, } EXPORT_SYMBOL(bitmap_scnprintf); -/** - * bitmap_scnprintf_len - return buffer length needed to convert - * bitmap to an ASCII hex string - * @nr_bits: number of bits to be converted - */ -int bitmap_scnprintf_len(unsigned int nr_bits) -{ - unsigned int nr_nibbles = ALIGN(nr_bits, 4) / 4; - return nr_nibbles + ALIGN(nr_nibbles, CHUNKSZ / 4) / (CHUNKSZ / 4) - 1; -} - /** * __bitmap_parse - convert an ASCII hex string into a bitmap. * @buf: pointer to buffer containing string. -- cgit v1.2.3