linux-kernel - [PATCH] loop: constify attribute

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Date:   Wed, 2 Aug 2017 19:00:49 -0400
From:   Amitoj Kaur Chawla <amitoj1606@...il.com>
To:     linux-kernel@...r.kernel.org
Subject: [PATCH] loop: constify attribute_group structure

Functions working with attribute_groups provided by <linux/sysfs.h>
work with const attribute_group. These attribute_group structures do not
change at runtime so mark them as const.

File size before:
 text      data     bss     dec     hex filename
 27981     5489     480   33950    849e drivers/block/loop.o

File size after:
 text      data     bss     dec     hex filename
 28320     5421     480   34221    85ad drivers/block/loop.o

This change was made with the help of Coccinelle.

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@...il.com>
---
 drivers/block/loop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index ef83349..a7f35a0 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -798,7 +798,7 @@ static struct attribute *loop_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group loop_attribute_group = {
+static const struct attribute_group loop_attribute_group = {
 	.name = "loop",
 	.attrs= loop_attrs,
 };
-- 
2.7.4