From 7753f1692f53d82b4cc08084462b0fd2803c1f04 Mon Sep 17 00:00:00 2001 From: Vignesh Babu Date: Tue, 12 Jun 2007 10:31:05 +0530 Subject: [PATCH] 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 Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/build.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 08ca214abb95..eb8b55dcc3bb 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -33,6 +33,7 @@ #include #include #include +#include #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; } -- 2.20.1