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Groups > linux.kernel > #1681276

[PATCH] hwmon: constify attribute_group structures.

From Arvind Yadav <arvind.yadav.cs@gmail.com>
Newsgroups linux.kernel
Subject [PATCH] hwmon: constify attribute_group structures.
Date 2017-07-05 07:10 +0200
Message-ID <tZKJz-1Ny-7@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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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
   6655	    304	      0	   6959	   1b2f	drivers/hwmon/hwmon.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   6703	    240	      0	   6943	   1b1f	drivers/hwmon/hwmon.o

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

diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index dd6e17c..2ac578a 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -85,7 +85,7 @@ static umode_t hwmon_dev_name_is_visible(struct kobject *kobj,
 	return attr->mode;
 }
 
-static struct attribute_group hwmon_dev_attr_group = {
+static const struct attribute_group hwmon_dev_attr_group = {
 	.attrs		= hwmon_dev_attrs,
 	.is_visible	= hwmon_dev_name_is_visible,
 };
-- 
1.9.1

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[PATCH] hwmon: constify attribute_group structures. Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-07-05 07:10 +0200
  Re: hwmon: constify attribute_group structures. Guenter Roeck <linux@roeck-us.net> - 2017-07-08 18:00 +0200

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