--- zzzz-none-000/linux-4.9.231/drivers/net/vxlan.c	2020-07-22 07:10:54.000000000 +0000
+++ falcon-5590-729/linux-4.9.231/drivers/net/vxlan.c	2022-03-30 12:03:35.000000000 +0000
@@ -2291,6 +2291,19 @@
 	return NETDEV_TX_OK;
 }
 
+#if IS_ENABLED(CONFIG_PPA)
+extern int32_t (*ppa_is_vxlan_fn)(struct net_device *dev);
+
+static int32_t ppa_if_dev_is_vxlan(struct net_device *netdev)
+{
+	int ret = 0;
+
+	ret = (netdev->netdev_ops->ndo_start_xmit == vxlan_xmit) ? 1 : 0;
+
+	return ret;
+}
+#endif
+
 /* Walk the forwarding table and purge stale entries */
 static void vxlan_cleanup(unsigned long arg)
 {
@@ -3420,6 +3433,9 @@
 	if (rc)
 		goto out3;
 
+#if IS_ENABLED(CONFIG_PPA)
+	ppa_is_vxlan_fn = ppa_if_dev_is_vxlan;
+#endif
 	return 0;
 out3:
 	unregister_netdevice_notifier(&vxlan_notifier_block);
@@ -3432,6 +3448,9 @@
 
 static void __exit vxlan_cleanup_module(void)
 {
+#if IS_ENABLED(CONFIG_PPA)
+	ppa_is_vxlan_fn = NULL;
+#endif
 	rtnl_link_unregister(&vxlan_link_ops);
 	unregister_netdevice_notifier(&vxlan_notifier_block);
 	unregister_pernet_subsys(&vxlan_net_ops);