--- zzzz-none-000/linux-5.4.213/include/linux/if_tun.h	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/include/linux/if_tun.h	2024-08-14 09:02:08.000000000 +0000
@@ -26,6 +26,12 @@
 
 #if defined(CONFIG_TUN) || defined(CONFIG_TUN_MODULE)
 struct socket *tun_get_socket(struct file *);
+#ifdef __KERNEL__
+typedef void (*tun_get_offload_stats_t)(struct net_device *dev,
+					struct rtnl_link_stats64 *stats);
+void tun_register_offload_stats_callback(tun_get_offload_stats_t stats_cb);
+void tun_unregister_offload_stats_callback(void);
+#endif
 struct ptr_ring *tun_get_tx_ring(struct file *file);
 bool tun_is_xdp_frame(void *ptr);
 void *tun_xdp_to_ptr(void *ptr);