diff --git a/sys/compat/linuxkpi/common/include/linux/rcupdate.h b/sys/compat/linuxkpi/common/include/linux/rcupdate.h
index e4afa5a93f2..dbc77f4f7fc 100644
--- a/sys/compat/linuxkpi/common/include/linux/rcupdate.h
+++ b/sys/compat/linuxkpi/common/include/linux/rcupdate.h
@@ -100,4 +100,10 @@ extern void linux_rcu_read_lock(void);
 extern void linux_rcu_read_unlock(void);
 extern void linux_synchronize_rcu(void);
 
+/* Empty implementation for !DEBUG */
+#define	init_rcu_head(...)
+#define	destroy_rcu_head(...)
+#define	init_rcu_head_on_stack(...)
+#define	destroy_rcu_head_on_stack(...)
+
 #endif					/* _LINUX_RCUPDATE_H_ */