--- zzzz-none-000/linux-4.4.271/drivers/md/dm.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/drivers/md/dm.c	2023-04-19 10:22:29.000000000 +0000
@@ -1147,7 +1147,7 @@
  * Must be called without clone's queue lock held,
  * see end_clone_request() for more details.
  */
-static void dm_end_request(struct request *clone, int error)
+void dm_end_request(struct request *clone, int error)
 {
 	int rw = rq_data_dir(clone);
 	struct dm_rq_target_io *tio = clone->end_io_data;