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Subject[PATCH 05/18] lib: bitmap: Remove unnecessary mask from bitmap_complement
Date
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>
---
include/linux/bitmap.h | 2 +-
lib/bitmap.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 21fb52f..f42d72d 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
unsigned int nbits)
{
if (small_const_nbits(nbits))
- *dst = ~(*src) & BITMAP_LAST_WORD_MASK(nbits);
+ *dst = ~(*src);
else
__bitmap_complement(dst, src, nbits);
}
diff --git a/lib/bitmap.c b/lib/bitmap.c
index 0f2f845..4387e3c 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -93,7 +93,7 @@ void __bitmap_complement(unsigned long *dst, const unsigned long *src, unsigned
dst[k] = ~src[k];

if (bits % BITS_PER_LONG)
- dst[k] = ~src[k] & BITMAP_LAST_WORD_MASK(bits);
+ dst[k] = ~src[k];
}
EXPORT_SYMBOL(__bitmap_complement);

--
1.9.2


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