diff --git a/drivers/md/dm-pcache/cache.h b/drivers/md/dm-pcache/cache.h
index 021292c43677..e49cdfd16aaf 100644
--- a/drivers/md/dm-pcache/cache.h
+++ b/drivers/md/dm-pcache/cache.h
@@ -341,7 +341,6 @@ void cache_seg_set_next_seg(struct pcache_cache_segment *cache_seg, u32 seg_id);
 
 /* cache request*/
 int pcache_cache_flush(struct pcache_cache *cache);
-void miss_read_end_work_fn(struct work_struct *work);
 int pcache_cache_handle_req(struct pcache_cache *cache, struct pcache_request *pcache_req);
 
 /* gc */