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| author | Kyungmin Park <kyungmin.park@samsung.com> | 2008-05-22 10:32:18 +0900 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-07-24 13:32:54 +0300 |
| commit | cadb40ccc16a26a738f1cbc963e35b21edd93e79 (patch) | |
| tree | acd1d5d02ecda07634f1c49432ddb39cd9f5d7fd /drivers/mtd/ubi/kapi.c | |
| parent | a0fd1efd488092951f310fdb777b8a540cf84dcb (diff) | |
| download | kernel-crypto-cadb40ccc16a26a738f1cbc963e35b21edd93e79.tar.gz kernel-crypto-cadb40ccc16a26a738f1cbc963e35b21edd93e79.tar.xz kernel-crypto-cadb40ccc16a26a738f1cbc963e35b21edd93e79.zip | |
UBI: avoid unnecessary division operations
UBI already checks that @min io size is the power of 2 at io_init.
It is save to use bit operations then.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/kapi.c')
| -rw-r--r-- | drivers/mtd/ubi/kapi.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c index a70d58823f8..51508832566 100644 --- a/drivers/mtd/ubi/kapi.c +++ b/drivers/mtd/ubi/kapi.c @@ -397,8 +397,8 @@ int ubi_leb_write(struct ubi_volume_desc *desc, int lnum, const void *buf, return -EROFS; if (lnum < 0 || lnum >= vol->reserved_pebs || offset < 0 || len < 0 || - offset + len > vol->usable_leb_size || offset % ubi->min_io_size || - len % ubi->min_io_size) + offset + len > vol->usable_leb_size || + offset & (ubi->min_io_size - 1) || len & (ubi->min_io_size - 1)) return -EINVAL; if (dtype != UBI_LONGTERM && dtype != UBI_SHORTTERM && @@ -447,7 +447,7 @@ int ubi_leb_change(struct ubi_volume_desc *desc, int lnum, const void *buf, return -EROFS; if (lnum < 0 || lnum >= vol->reserved_pebs || len < 0 || - len > vol->usable_leb_size || len % ubi->min_io_size) + len > vol->usable_leb_size || len & (ubi->min_io_size - 1)) return -EINVAL; if (dtype != UBI_LONGTERM && dtype != UBI_SHORTTERM && |