diff --git a/drivers/base/base.h b/drivers/base/base.h
index b3a43a164dcd..b902d1ecc247 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -154,8 +154,6 @@ extern void driver_remove_groups(struct device_driver *drv,
 				 const struct attribute_group **groups);
 void device_driver_detach(struct device *dev);
 
-extern char *make_class_name(const char *name, struct kobject *kobj);
-
 extern int devres_release_all(struct device *dev);
 extern void device_block_probing(void);
 extern void device_unblock_probing(void);