261 static inline bool ip_is_fragment(const struct iphdr *iph)  in ip_is_fragment()  argument
263 	return (iph->frag_off & htons(IP_MF | IP_OFFSET)) != 0;  in ip_is_fragment()
272 int ip_decrease_ttl(struct iphdr *iph)  in ip_decrease_ttl()  argument
274 	u32 check = (__force u32)iph->check;  in ip_decrease_ttl()
276 	iph->check = (__force __sum16)(check + (check>=0xFFFF));  in ip_decrease_ttl()
277 	return --iph->ttl;  in ip_decrease_ttl()
334 void __ip_select_ident(struct net *net, struct iphdr *iph, int segs);
339 	struct iphdr *iph = ip_hdr(skb);  in ip_select_ident_segs()  local
341 	if ((iph->frag_off & htons(IP_DF)) && !skb->ignore_df) {  in ip_select_ident_segs()
348 			iph->id = htons(inet_sk(sk)->inet_id);  in ip_select_ident_segs()
351 			iph->id = 0;  in ip_select_ident_segs()
354 		__ip_select_ident(net, iph, segs);  in ip_select_ident_segs()
375 					    const struct iphdr *iph)  in iph_to_flow_copy_v4addrs()  argument
380 	memcpy(&flow->addrs.v4addrs, &iph->saddr, sizeof(flow->addrs.v4addrs));  in iph_to_flow_copy_v4addrs()
386 	const struct iphdr *iph = skb_gro_network_header(skb);  in inet_gro_compute_pseudo()  local
388 	return csum_tcpudp_nofold(iph->saddr, iph->daddr,  in inet_gro_compute_pseudo()