[PATCH 05/12] driver core: class: make class_dev_iter_init() options const

From: Greg Kroah-Hartman
Date: Mon Mar 13 2023 - 14:19:43 EST


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@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/base/class.c | 4 ++--
include/linux/device/class.h | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/base/class.c b/drivers/base/class.c
index 9439c6c7466f..5a60e8895165 100644
--- 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 cda598fc5fa0..1f5cfae8db88 100644
--- 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);
--
2.39.2