linux-kernel - [PATCH 7/7] platform/x86: toshiba_acpi: constify attribute

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Message-Id: <1499770100-18632-8-git-send-email-arvind.yadav.cs@gmail.com>
Date:   Tue, 11 Jul 2017 16:18:20 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     dvhart@...radead.org, andy@...radead.org, jwoithe@...t42.net,
        cezary.jackiewicz@...il.com, corentin.chary@...il.com,
        laforge@...monks.org, coproscefalo@...il.com
Cc:     platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 7/7] platform/x86: toshiba_acpi: constify attribute_group structures.

attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
  26360	   1072	     24	  27456	   6b40	drivers/platform/x86/toshiba_acpi.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
  26424	   1008	     24	  27456	   6b40	drivers/platform/x86/toshiba_acpi.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/platform/x86/toshiba_acpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 88f9f79..bb1dcd7 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -2419,7 +2419,7 @@ static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
 	return exists ? attr->mode : 0;
 }
 
-static struct attribute_group toshiba_attr_group = {
+static const struct attribute_group toshiba_attr_group = {
 	.is_visible = toshiba_sysfs_is_visible,
 	.attrs = toshiba_attributes,
 };
-- 
1.9.1