{
struct iphdr *pip = ip_hdr(skb);
struct igmphdr *pig = igmp_hdr(skb);
- const int iplen = skb->tail - skb->nh.raw;
+ const int iplen = skb->tail - skb_network_header(skb);
const int igmplen = skb->tail - skb_transport_header(skb);
pip->tot_len = htons(iplen);