diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2018-08-22 07:56:59 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 20:52:48 +0300 |
| commit | ccf7a6d457a8bd618c77468c38842b3f9d82cef4 (patch) | |
| tree | ceec72ac0266bab340909130d6c5ad490508e62f /lib | |
| parent | 0fbd75fd7feedd9e38fc1d3a01317aa23b83d29e (diff) | |
| download | linux-ccf7a6d457a8bd618c77468c38842b3f9d82cef4.tar.xz | |
lib/bitmap.c: drop unnecessary 0 check for u32 array operations
nbits == 0 is safe to be supplied to the function body, so remove
unnecessary checks in bitmap_to_arr32() and bitmap_from_arr32().
Link: http://lkml.kernel.org/r/20180531131914.44352-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Yury Norov <ynorov@caviumnetworks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/bitmap.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index 730969c681cb..2fd07f6df0b8 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -1152,14 +1152,10 @@ EXPORT_SYMBOL(bitmap_free); * @buf: array of u32 (in host byte order), the source bitmap * @nbits: number of bits in @bitmap */ -void bitmap_from_arr32(unsigned long *bitmap, const u32 *buf, - unsigned int nbits) +void bitmap_from_arr32(unsigned long *bitmap, const u32 *buf, unsigned int nbits) { unsigned int i, halfwords; - if (!nbits) - return; - halfwords = DIV_ROUND_UP(nbits, 32); for (i = 0; i < halfwords; i++) { bitmap[i/2] = (unsigned long) buf[i]; @@ -1183,9 +1179,6 @@ void bitmap_to_arr32(u32 *buf, const unsigned long *bitmap, unsigned int nbits) { unsigned int i, halfwords; - if (!nbits) - return; - halfwords = DIV_ROUND_UP(nbits, 32); for (i = 0; i < halfwords; i++) { buf[i] = (u32) (bitmap[i/2] & UINT_MAX); |