Commit 7753f169 authored by Vignesh Babu's avatar Vignesh Babu Committed by Artem Bityutskiy
Browse files

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: default avatarVignesh Babu <vignesh.babu@wipro.com>
Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
parent d7f0c4dc

drivers/mtd/ubi/build.c

+2 −2
Original line number Diff line number Diff line
@@ -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;

	}