diff options
author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2014-08-06 19:09:57 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 21:01:26 -0400 |
commit | 65b4ee62c9cd10640f0054f47fd84c7920e8c118 (patch) | |
tree | e60b0c786a55b876b170f77753d15f772cc01c27 | |
parent | 3d6684f4e6a46f3a8263f5681e093bccbb767a1c (diff) |
lib: bitmap: remove unnecessary mask from bitmap_complement
Since the extra bits are "don't care", there is no reason to mask the
last word to the used bits when complementing. This shaves off yet a
few bytes.
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>
-rw-r--r-- | include/linux/bitmap.h | 2 | ||||
-rw-r--r-- | lib/bitmap.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 21fb52ffe444..f42d72d5fe82 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h | |||
@@ -225,7 +225,7 @@ static inline void bitmap_complement(unsigned long *dst, const unsigned long *sr | |||
225 | unsigned int nbits) | 225 | unsigned int nbits) |
226 | { | 226 | { |
227 | if (small_const_nbits(nbits)) | 227 | if (small_const_nbits(nbits)) |
228 | *dst = ~(*src) & BITMAP_LAST_WORD_MASK(nbits); | 228 | *dst = ~(*src); |
229 | else | 229 | else |
230 | __bitmap_complement(dst, src, nbits); | 230 | __bitmap_complement(dst, src, nbits); |
231 | } | 231 | } |
diff --git a/lib/bitmap.c b/lib/bitmap.c index 0f2f845702eb..4387e3c092fd 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c | |||
@@ -93,7 +93,7 @@ void __bitmap_complement(unsigned long *dst, const unsigned long *src, unsigned | |||
93 | dst[k] = ~src[k]; | 93 | dst[k] = ~src[k]; |
94 | 94 | ||
95 | if (bits % BITS_PER_LONG) | 95 | if (bits % BITS_PER_LONG) |
96 | dst[k] = ~src[k] & BITMAP_LAST_WORD_MASK(bits); | 96 | dst[k] = ~src[k]; |
97 | } | 97 | } |
98 | EXPORT_SYMBOL(__bitmap_complement); | 98 | EXPORT_SYMBOL(__bitmap_complement); |
99 | 99 | ||