driver core: class: make class_dev_iter_init() options const

class_dev_iter_init() does not modify the struct class or the struct
device passed into it, so mark them as const * to enforce that.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230313181843.1207845-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/base/class.c b/drivers/base/class.c
index 9439c6c..5a60e88 100644 (file)
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -284,8 +284,8 @@ EXPORT_SYMBOL_GPL(class_destroy);
  * otherwise if it is NULL, the iteration starts at the beginning of
  * the list.
  */
-void class_dev_iter_init(struct class_dev_iter *iter, struct class *class,
-                        struct device *start, const struct device_type *type)
+void class_dev_iter_init(struct class_dev_iter *iter, const struct class *class,
+                        const struct device *start, const struct device_type *type)
 {
        struct klist_node *start_knode = NULL;
 

diff --git a/include/linux/device/class.h b/include/linux/device/class.h
index cda598f..1f5cfae 100644 (file)
--- a/include/linux/device/class.h
+++ b/include/linux/device/class.h
@@ -103,8 +103,8 @@ void class_compat_remove_link(struct class_compat *cls, struct device *dev,
                              struct device *device_link);
 
 extern void class_dev_iter_init(struct class_dev_iter *iter,
-                               struct class *class,
-                               struct device *start,
+                               const struct class *class,
+                               const struct device *start,
                                const struct device_type *type);
 extern struct device *class_dev_iter_next(struct class_dev_iter *iter);
 extern void class_dev_iter_exit(struct class_dev_iter *iter);