diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index cecfeedb7361d9421c790eae23e94b66fff6d744..3ccce6f245484eaccd8d48e98c317ea346c1b599 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -269,10 +269,6 @@ struct kernfs_ops {
 			 struct poll_table_struct *pt);
 
 	int (*mmap)(struct kernfs_open_file *of, struct vm_area_struct *vma);
-
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-	struct lock_class_key	lockdep_key;
-#endif
 };
 
 /*