--- zzzz-none-000/linux-4.4.271/include/linux/rtnetlink.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/linux/rtnetlink.h	2023-04-19 10:22:30.000000000 +0000
@@ -22,6 +22,14 @@
 void rtmsg_ifinfo_send(struct sk_buff *skb, struct net_device *dev,
 		       gfp_t flags);
 
+#if IS_ENABLED(CONFIG_AVM_RTNETLINK_ENHANCEMENT)
+extern void rtnl_offload_read_lock(void);
+extern void rtnl_offload_read_unlock(void);
+extern void rtnl_offload_write_lock(void);
+extern void rtnl_offload_write_unlock(void);
+extern void wait_for_link_to_offload_cpu(void);
+extern void (*wait_for_link_to_offload_cpu_hook)(void);
+#endif
 
 /* RTNL is used as a global lock for all changes to network configuration  */
 extern void rtnl_lock(void);