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

File size before:
   text    data     bss     dec     hex filename
    995     608       0    1603     643 sound/pci/hda/hda_sysfs.o

File size After adding 'const':
   text    data     bss     dec     hex filename
   1035     544       0    1579     62b sound/pci/hda/hda_sysfs.o

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

diff --git a/sound/pci/hda/hda_sysfs.c b/sound/pci/hda/hda_sysfs.c
index 9739fce..9b7efec 100644
--- a/sound/pci/hda/hda_sysfs.c
+++ b/sound/pci/hda/hda_sysfs.c
@@ -761,7 +761,7 @@ int snd_hda_load_patch(struct hda_bus *bus, size_t fw_size, 
const void *fw_buf)
        NULL
 };
 
-static struct attribute_group hda_dev_attr_group = {
+static const struct attribute_group hda_dev_attr_group = {
        .attrs  = hda_dev_attrs,
 };
 
-- 
1.9.1

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