ext4: make 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 definitions to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230209-kobj_type-ext4-v1-1-6865fb05c1f8@weissschuh.net
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index e2b8b3437c589734553eb6abf73066b7cc8f347d..12d6252e3e226dfdf5ee2f61512b23b213c1b503 100644 (file)
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -501,13 +501,13 @@ static const struct sysfs_ops ext4_attr_ops = {
        .store  = ext4_attr_store,
 };
 
-static struct kobj_type ext4_sb_ktype = {
+static const struct kobj_type ext4_sb_ktype = {
        .default_groups = ext4_groups,
        .sysfs_ops      = &ext4_attr_ops,
        .release        = ext4_sb_release,
 };
 
-static struct kobj_type ext4_feat_ktype = {
+static const struct kobj_type ext4_feat_ktype = {
        .default_groups = ext4_feat_groups,
        .sysfs_ops      = &ext4_attr_ops,
        .release        = ext4_feat_release,