199 		struct icmphdr *icmph;  in tcf_nat_act()  local
201 		if (!pskb_may_pull(skb, ihl + sizeof(*icmph) + noff))  in tcf_nat_act()
204 		icmph = (void *)(skb_network_header(skb) + ihl);  in tcf_nat_act()
206 		if (!icmp_is_err(icmph->type))  in tcf_nat_act()
209 		if (!pskb_may_pull(skb, ihl + sizeof(*icmph) + sizeof(*iph) +  in tcf_nat_act()
213 		icmph = (void *)(skb_network_header(skb) + ihl);  in tcf_nat_act()
214 		iph = (void *)(icmph + 1);  in tcf_nat_act()
223 		if (skb_try_make_writable(skb, ihl + sizeof(*icmph) +  in tcf_nat_act()
227 		icmph = (void *)(skb_network_header(skb) + ihl);  in tcf_nat_act()
228 		iph = (void *)(icmph + 1);  in tcf_nat_act()
239 		inet_proto_csum_replace4(&icmph->checksum, skb, addr, new_addr,  in tcf_nat_act()