mm/hugetlb.c: constify attribute_group structures

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

Link: http://lkml.kernel.org/r/1501157260-3922-1-git-send-email-arvind.yadav.cs@gmail.com
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 1d54a131bdd5c55bae6ee4fa7bc58531d7951822..cafd60316e6891c053e2adc92fd364445a8ca0db 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2569,13 +2569,13 @@ static struct attribute *hstate_attrs[] = {
        NULL,
 };
 
-static struct attribute_group hstate_attr_group = {
+static const struct attribute_group hstate_attr_group = {
        .attrs = hstate_attrs,
 };
 
 static int hugetlb_sysfs_add_hstate(struct hstate *h, struct kobject *parent,
                                    struct kobject **hstate_kobjs,
-                                   struct attribute_group *hstate_attr_group)
+                                   const struct attribute_group *hstate_attr_group)
 {
        int retval;
        int hi = hstate_index(h);
@@ -2633,7 +2633,7 @@ static struct attribute *per_node_hstate_attrs[] = {
        NULL,
 };
 
-static struct attribute_group per_node_hstate_attr_group = {
+static const struct attribute_group per_node_hstate_attr_group = {
        .attrs = per_node_hstate_attrs,
 };