platform/x86: panasonic-laptop: 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
   2505	    600	      4	   3109	    c25	drivers/platform/x86/panasonic-laptop.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   2569	    536	      4	   3109	    c25	drivers/platform/x86/panasonic-laptop.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>

diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index 76b0a58e205ba49c735ec6b93805ad6bf9956b11..5c39b3211709bca675216625786bf3967e477ba9 100644 (file)
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -437,7 +437,7 @@ static struct attribute *pcc_sysfs_entries[] = {
        NULL,
 };
 
-static struct attribute_group pcc_attr_group = {
+static const struct attribute_group pcc_attr_group = {
        .name   = NULL,         /* put in device directory */
        .attrs  = pcc_sysfs_entries,
 };