mm/damon/sysfs: make more kobj_type structures constant

Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.") the
driver core allows the usage of const struct kobj_type.

Take advantage of this to constify the structure definition to prevent
modification at runtime.

These structures were not constified in commit e56397e8c40d
("mm/damon/sysfs: make kobj_type structures constant") as they didn't
exist when that patch was written.

Link: https://lkml.kernel.org/r/20230324-b4-kobj_type-damon2-v1-1-48ddbf1c8fcf@weissschuh.net
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c
index 3cdad5a7f936ab46911c9f1aa8d5fdf5043be01c..50cf89dcd898b31d0b45a133437a461d37167f76 100644 (file)
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -384,7 +384,7 @@ static struct attribute *damon_sysfs_scheme_filter_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_scheme_filter);
 
-static struct kobj_type damon_sysfs_scheme_filter_ktype = {
+static const struct kobj_type damon_sysfs_scheme_filter_ktype = {
        .release = damon_sysfs_scheme_filter_release,
        .sysfs_ops = &kobj_sysfs_ops,
        .default_groups = damon_sysfs_scheme_filter_groups,
@@ -503,7 +503,7 @@ static struct attribute *damon_sysfs_scheme_filters_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_scheme_filters);
 
-static struct kobj_type damon_sysfs_scheme_filters_ktype = {
+static const struct kobj_type damon_sysfs_scheme_filters_ktype = {
        .release = damon_sysfs_scheme_filters_release,
        .sysfs_ops = &kobj_sysfs_ops,
        .default_groups = damon_sysfs_scheme_filters_groups,