net: sched: update the nat flag for icmp error packets in ct_nat_execute

In ovs_ct_nat_execute(), the packet flow key nat flags are updated
when it processes ICMP(v6) error packets translation successfully.

In ct_nat_execute() when processing ICMP(v6) error packets translation
successfully, it should have done the same in ct_nat_execute() to set
post_ct_s/dnat flag, which will be used to update flow key nat flags
in OVS module later.
Reviewed-by: Saeed Mahameed <saeed@kernel.org>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/act_ct.c

@@ -937,13 +937,13 @@ static int ct_nat_execute(struct sk_buff *skb, struct nf_conn *ct,
 	}
 
 	err = nf_nat_packet(ct, ctinfo, hooknum, skb);
+out:
 	if (err == NF_ACCEPT) {
 		if (maniptype == NF_NAT_MANIP_SRC)
 			tc_skb_cb(skb)->post_ct_snat = 1;
 		if (maniptype == NF_NAT_MANIP_DST)
 			tc_skb_cb(skb)->post_ct_dnat = 1;
 	}
-out:
 	return err;
 }
 #endif /* CONFIG_NF_NAT */