--- zzzz-none-000/linux-4.9.231/net/l2tp/l2tp_eth.c	2020-07-22 07:10:54.000000000 +0000
+++ falcon-5590-729/linux-4.9.231/net/l2tp/l2tp_eth.c	2022-03-30 12:03:35.000000000 +0000
@@ -156,7 +156,7 @@
 	skb->ip_summed = CHECKSUM_NONE;
 
 	skb_dst_drop(skb);
-	nf_reset(skb);
+	nf_reset_no_generic_ct(skb);
 
 	rcu_read_lock();
 	dev = rcu_dereference(spriv->dev);