mm/damon/sysfs: make kobj_type structures constant

Since commit ee6d3dd4 ("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.

Link: https://lkml.kernel.org/r/20230207-kobj_type-damon-v1-1-9d4fea6a465b@weissschuh.netSigned-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/damon/sysfs-common.c

@@ -99,7 +99,7 @@ static struct attribute *damon_sysfs_ul_range_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_ul_range);
 
-struct kobj_type damon_sysfs_ul_range_ktype = {
+const struct kobj_type damon_sysfs_ul_range_ktype = {
 	.release = damon_sysfs_ul_range_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_ul_range_groups,

mm/damon/sysfs-common.h

@@ -21,7 +21,7 @@ struct damon_sysfs_ul_range *damon_sysfs_ul_range_alloc(
 		unsigned long max);
 void damon_sysfs_ul_range_release(struct kobject *kobj);
 
-extern struct kobj_type damon_sysfs_ul_range_ktype;
+extern const struct kobj_type damon_sysfs_ul_range_ktype;
 
 /*
  * schemes directory
@@ -36,7 +36,7 @@ struct damon_sysfs_schemes {
 struct damon_sysfs_schemes *damon_sysfs_schemes_alloc(void);
 void damon_sysfs_schemes_rm_dirs(struct damon_sysfs_schemes *schemes);
 
-extern struct kobj_type damon_sysfs_schemes_ktype;
+extern const struct kobj_type damon_sysfs_schemes_ktype;
 
 int damon_sysfs_set_schemes(struct damon_ctx *ctx,
 		struct damon_sysfs_schemes *sysfs_schemes);

mm/damon/sysfs-schemes.c

@@ -103,7 +103,7 @@ static struct attribute *damon_sysfs_scheme_region_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_scheme_region);
 
-static struct kobj_type damon_sysfs_scheme_region_ktype = {
+static const struct kobj_type damon_sysfs_scheme_region_ktype = {
 	.release = damon_sysfs_scheme_region_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_scheme_region_groups,
@@ -153,7 +153,7 @@ static struct attribute *damon_sysfs_scheme_regions_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_scheme_regions);
 
-static struct kobj_type damon_sysfs_scheme_regions_ktype = {
+static const struct kobj_type damon_sysfs_scheme_regions_ktype = {
 	.release = damon_sysfs_scheme_regions_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_scheme_regions_groups,
@@ -252,7 +252,7 @@ static struct attribute *damon_sysfs_stats_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_stats);
 
-static struct kobj_type damon_sysfs_stats_ktype = {
+static const struct kobj_type damon_sysfs_stats_ktype = {
 	.release = damon_sysfs_stats_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_stats_groups,
@@ -678,7 +678,7 @@ static struct attribute *damon_sysfs_watermarks_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_watermarks);
 
-static struct kobj_type damon_sysfs_watermarks_ktype = {
+static const struct kobj_type damon_sysfs_watermarks_ktype = {
 	.release = damon_sysfs_watermarks_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_watermarks_groups,
@@ -789,7 +789,7 @@ static struct attribute *damon_sysfs_weights_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_weights);
 
-static struct kobj_type damon_sysfs_weights_ktype = {
+static const struct kobj_type damon_sysfs_weights_ktype = {
 	.release = damon_sysfs_weights_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_weights_groups,
@@ -920,7 +920,7 @@ static struct attribute *damon_sysfs_quotas_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_quotas);
 
-static struct kobj_type damon_sysfs_quotas_ktype = {
+static const struct kobj_type damon_sysfs_quotas_ktype = {
 	.release = damon_sysfs_quotas_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_quotas_groups,
@@ -1019,7 +1019,7 @@ static struct attribute *damon_sysfs_access_pattern_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_access_pattern);
 
-static struct kobj_type damon_sysfs_access_pattern_ktype = {
+static const struct kobj_type damon_sysfs_access_pattern_ktype = {
 	.release = damon_sysfs_access_pattern_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_access_pattern_groups,
@@ -1279,7 +1279,7 @@ static struct attribute *damon_sysfs_scheme_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_scheme);
 
-static struct kobj_type damon_sysfs_scheme_ktype = {
+static const struct kobj_type damon_sysfs_scheme_ktype = {
 	.release = damon_sysfs_scheme_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_scheme_groups,
@@ -1396,7 +1396,7 @@ static struct attribute *damon_sysfs_schemes_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_schemes);
 
-struct kobj_type damon_sysfs_schemes_ktype = {
+const struct kobj_type damon_sysfs_schemes_ktype = {
 	.release = damon_sysfs_schemes_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_schemes_groups,

mm/damon/sysfs.c

@@ -81,7 +81,7 @@ static struct attribute *damon_sysfs_region_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_region);
 
-static struct kobj_type damon_sysfs_region_ktype = {
+static const struct kobj_type damon_sysfs_region_ktype = {
 	.release = damon_sysfs_region_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_region_groups,
@@ -198,7 +198,7 @@ static struct attribute *damon_sysfs_regions_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_regions);
 
-static struct kobj_type damon_sysfs_regions_ktype = {
+static const struct kobj_type damon_sysfs_regions_ktype = {
 	.release = damon_sysfs_regions_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_regions_groups,
@@ -277,7 +277,7 @@ static struct attribute *damon_sysfs_target_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_target);
 
-static struct kobj_type damon_sysfs_target_ktype = {
+static const struct kobj_type damon_sysfs_target_ktype = {
 	.release = damon_sysfs_target_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_target_groups,
@@ -402,7 +402,7 @@ static struct attribute *damon_sysfs_targets_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_targets);
 
-static struct kobj_type damon_sysfs_targets_ktype = {
+static const struct kobj_type damon_sysfs_targets_ktype = {
 	.release = damon_sysfs_targets_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_targets_groups,
@@ -530,7 +530,7 @@ static struct attribute *damon_sysfs_intervals_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_intervals);
 
-static struct kobj_type damon_sysfs_intervals_ktype = {
+static const struct kobj_type damon_sysfs_intervals_ktype = {
 	.release = damon_sysfs_intervals_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_intervals_groups,
@@ -612,7 +612,7 @@ static struct attribute *damon_sysfs_attrs_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_attrs);
 
-static struct kobj_type damon_sysfs_attrs_ktype = {
+static const struct kobj_type damon_sysfs_attrs_ktype = {
 	.release = damon_sysfs_attrs_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_attrs_groups,
@@ -800,7 +800,7 @@ static struct attribute *damon_sysfs_context_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_context);
 
-static struct kobj_type damon_sysfs_context_ktype = {
+static const struct kobj_type damon_sysfs_context_ktype = {
 	.release = damon_sysfs_context_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_context_groups,
@@ -926,7 +926,7 @@ static struct attribute *damon_sysfs_contexts_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_contexts);
 
-static struct kobj_type damon_sysfs_contexts_ktype = {
+static const struct kobj_type damon_sysfs_contexts_ktype = {
 	.release = damon_sysfs_contexts_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_contexts_groups,
@@ -1564,7 +1564,7 @@ static struct attribute *damon_sysfs_kdamond_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_kdamond);
 
-static struct kobj_type damon_sysfs_kdamond_ktype = {
+static const struct kobj_type damon_sysfs_kdamond_ktype = {
 	.release = damon_sysfs_kdamond_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_kdamond_groups,
@@ -1707,7 +1707,7 @@ static struct attribute *damon_sysfs_kdamonds_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_kdamonds);
 
-static struct kobj_type damon_sysfs_kdamonds_ktype = {
+static const struct kobj_type damon_sysfs_kdamonds_ktype = {
 	.release = damon_sysfs_kdamonds_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_kdamonds_groups,
@@ -1757,7 +1757,7 @@ static struct attribute *damon_sysfs_ui_dir_attrs[] = {
 };
 ATTRIBUTE_GROUPS(damon_sysfs_ui_dir);
 
-static struct kobj_type damon_sysfs_ui_dir_ktype = {
+static const struct kobj_type damon_sysfs_ui_dir_ktype = {
 	.release = damon_sysfs_ui_dir_release,
 	.sysfs_ops = &kobj_sysfs_ops,
 	.default_groups = damon_sysfs_ui_dir_groups,