* old iph is no longer valid
*/
iph = (const struct iphdr *)skb_mac_header(skb);
+ skb_reset_mac_header(skb);
+
err = IP_ECN_decapsulate(iph, skb);
if (unlikely(err)) {
if (log_ecn_error)
tpi = &ipip_tpi;
if (iptunnel_pull_header(skb, 0, tpi->proto, false))
goto drop;
+ skb_reset_mac_header(skb);
+
return ip_tunnel_rcv(tunnel, skb, tpi, NULL, log_ecn_error);
}
if (df) {
mtu = dst_mtu(&rt->dst) - t_hlen;
- if (mtu < 68) {
+ if (mtu < IPV4_MIN_MTU) {
dev->stats.collisions++;
ip_rt_put(rt);
goto tx_error;