linux-kernel - [PATCH] staging: unisys: visorbus_main: constify attribute

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Date:   Tue, 25 Jul 2017 18:45:52 -0400
From:   Amitoj Kaur Chawla <amitoj1606@...il.com>
To:     david.kershner@...sys.com, gregkh@...uxfoundation.org,
        sparmaintainer@...sys.com, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] staging: unisys: visorbus_main: constify attribute_group
 structures

Functions working with attribute_groups provided by <linux/device.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
 14216    7304     832   22352    5750
drivers/staging/unisys/visorbus/visorbus_main.o

File size after:
 text     data     bss     dec     hex filename
 14408    7112     832   22352    5750
drivers/staging/unisys/visorbus/visorbus_main.o

This change was made with the help of Coccinelle.

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@...il.com>
---
 drivers/staging/unisys/visorbus/visorbus_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c
index 1c785dd..bba10dc 100644
--- a/drivers/staging/unisys/visorbus/visorbus_main.c
+++ b/drivers/staging/unisys/visorbus/visorbus_main.c
@@ -249,7 +249,7 @@ static struct attribute *channel_attrs[] = {
 		NULL
 };
 
-static struct attribute_group channel_attr_grp = {
+static const struct attribute_group channel_attr_grp = {
 		.name = "channel",
 		.attrs = channel_attrs,
 };
@@ -340,7 +340,7 @@ static struct attribute *dev_attrs[] = {
 		NULL
 };
 
-static struct attribute_group dev_attr_grp = {
+static const struct attribute_group dev_attr_grp = {
 		.attrs = dev_attrs,
 };
 
-- 
2.7.4