Linux Ethernet Bridging - Jun 2017 - [Bridge] [PATCH] net: bridge: 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
   2645	    896	      0	   3541	    dd5	net/bridge/br_sysfs_br.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   2701	    832	      0	   3533	    dcd	net/bridge/br_sysfs_br.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs at gmail.com>
---
 net/bridge/br_sysfs_br.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 0b5dd60..723f25e 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -865,7 +865,7 @@ static ssize_t vlan_stats_enabled_store(struct device *d,
 	NULL
 };
 
-static struct attribute_group bridge_group = {
+static const struct attribute_group bridge_group = {
 	.name = SYSFS_BRIDGE_ATTR,
 	.attrs = bridge_attrs,
 };
-- 
1.9.1

From: Arvind Yadav <arvind.yadav.cs at gmail.com>
Date: Thu, 29 Jun 2017 16:39:38 +0530
> 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
>    2645	    896	      0	   3541	    dd5	net/bridge/br_sysfs_br.o
> 
> File size After adding 'const':
>    text	   data	    bss	    dec	    hex	filename
>    2701	    832	      0	   3533	    dcd	net/bridge/br_sysfs_br.o
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs at gmail.com>
Applied.