diff options
| author | Vignesh Babu <vignesh.babu@wipro.com> | 2007-06-12 10:31:05 +0530 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-07-18 16:55:26 +0300 |
| commit | 7753f1692f53d82b4cc08084462b0fd2803c1f04 (patch) | |
| tree | 1af69abb56aaa61f4b149ce044c3b214d581db6d /drivers/mtd/ubi | |
| parent | d7f0c4dc31f1297a613f1e61a7d682dc9a5e859a (diff) | |
UBI: use is_power_of_2()
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>
Diffstat (limited to 'drivers/mtd/ubi')
| -rw-r--r-- | drivers/mtd/ubi/build.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 08ca214abb9..eb8b55dcc3b 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -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; } |