mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-24 17:59:32 +00:00
Code Issues Releases Wiki Activity

UBI: use is_power_of_2()

Browse source 
Replacing (n & (n-1)) in the context of power of 2 checks
with is_power_of_2

Signed-off-by: Vignesh Babu <vignesh.babu@wipro.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Vignesh Babu 2007-06-12 10:31:05 +05:30 committed by Artem Bityutskiy
parent d7f0c4dc31
commit 7753f1692f
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/mtd/ubi/build.c
View file

@ -33,6 +33,7 @@
#include <linux/moduleparam.h>
#include <linux/stringify.h>
#include <linux/stat.h>
#include <linux/log2.h>
#include "ubi.h"
/* Maximum length of the 'mtd=' parameter */
@ -422,8 +423,7 @@ static int io_init(struct ubi_device *ubi)
ubi->hdrs_min_io_size = ubi->mtd->writesize >> ubi->mtd->subpage_sft;
/* Make sure minimal I/O unit is power of 2 */
if (ubi->min_io_size == 0 ||
(ubi->min_io_size & (ubi->min_io_size - 1))) {
if (!is_power_of_2(ubi->min_io_size)) {
ubi_err("bad min. I/O unit");
return -EINVAL;
}