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authorKyungmin Park <kyungmin.park@samsung.com>2008-05-22 10:32:18 +0900
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-07-24 13:32:54 +0300
commitcadb40ccc16a26a738f1cbc963e35b21edd93e79 (patch)
treeacd1d5d02ecda07634f1c49432ddb39cd9f5d7fd /drivers/mtd/ubi/kapi.c
parenta0fd1efd488092951f310fdb777b8a540cf84dcb (diff)
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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.c6
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 &&