bcache: 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 <[email protected]>
Signed-off-by: Coly Li <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 700dc55..5a79bb3 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -1004,11 +1004,11 @@ extern struct workqueue_struct *bch_flush_wq;
extern struct mutex bch_register_lock;
extern struct list_head bch_cache_sets;
-extern struct kobj_type bch_cached_dev_ktype;
-extern struct kobj_type bch_flash_dev_ktype;
-extern struct kobj_type bch_cache_set_ktype;
-extern struct kobj_type bch_cache_set_internal_ktype;
-extern struct kobj_type bch_cache_ktype;
+extern const struct kobj_type bch_cached_dev_ktype;
+extern const struct kobj_type bch_flash_dev_ktype;
+extern const struct kobj_type bch_cache_set_ktype;
+extern const struct kobj_type bch_cache_set_internal_ktype;
+extern const struct kobj_type bch_cache_ktype;
void bch_cached_dev_release(struct kobject *kobj);
void bch_flash_dev_release(struct kobject *kobj);
diff --git a/drivers/md/bcache/sysfs.h b/drivers/md/bcache/sysfs.h
index a2ff644..65b8bd9 100644
--- a/drivers/md/bcache/sysfs.h
+++ b/drivers/md/bcache/sysfs.h
@@ -3,7 +3,7 @@
#define _BCACHE_SYSFS_H_
#define KTYPE(type) \
-struct kobj_type type ## _ktype = { \
+const struct kobj_type type ## _ktype = { \
.release = type ## _release, \
.sysfs_ops = &((const struct sysfs_ops) { \
.show = type ## _show, \
