linux-kernel - [PATCH 1/2] leds: blinkm: constify attribute

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Message-ID: <20170810162802.GA6881@amitoj-Inspiron-3542>
Date:   Thu, 10 Aug 2017 12:28:02 -0400
From:   Amitoj Kaur Chawla <amitoj1606@...il.com>
To:     rpurdie@...ys.net, jacek.anaszewski@...il.com, pavel@....cz,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] leds: blinkm: 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
 8657      3496      64   12217    2fb9 drivers/leds/leds-blinkm.o

File size after:
 text      data     bss     dec     hex filename
 8753      3400      64   12217    2fb9 drivers/leds/leds-blinkm.o

This change was made with the help of Coccinelle.

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

diff --git a/drivers/leds/leds-blinkm.c b/drivers/leds/leds-blinkm.c
index 617fe97..d03ed6b 100644
--- a/drivers/leds/leds-blinkm.c
+++ b/drivers/leds/leds-blinkm.c
@@ -298,7 +298,7 @@ static struct attribute *blinkm_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group blinkm_group = {
+static const struct attribute_group blinkm_group = {
 	.name = "blinkm",
 	.attrs = blinkm_attrs,
 };
-- 
2.7.4