323 	const struct tcphdr *th = (struct tcphdr *)(skb->data+offset);  in tcp_v6_err()  local
332 			th->dest, &hdr->saddr, th->source, skb->dev->ifindex);  in tcp_v6_err()
353 	seq = ntohl(th->seq);  in tcp_v6_err()
420 		req = inet6_csk_search_req(sk, &prev, th->dest, &hdr->daddr,  in tcp_v6_err()
502 		struct tcphdr *th = tcp_hdr(skb);  in tcp_v6_send_synack()  local
504 		th->check = tcp_v6_check(skb->len,  in tcp_v6_send_synack()
506 					 csum_partial(th, skb->len, skb->csum));  in tcp_v6_send_synack()
763 			       struct tcphdr *th)  in tcp_v6_md5_hash_hdr()  argument
775 	if (tcp_v6_md5_hash_pseudoheader(hp, daddr, saddr, th->doff << 2))  in tcp_v6_md5_hash_hdr()
777 	if (tcp_md5_hash_header(hp, th))  in tcp_v6_md5_hash_hdr()
801 	struct tcphdr *th = tcp_hdr(skb);  in tcp_v6_md5_hash_skb()  local
825 	if (tcp_md5_hash_header(hp, th))  in tcp_v6_md5_hash_skb()
827 	if (tcp_md5_hash_skb_data(hp, skb, th->doff << 2))  in tcp_v6_md5_hash_skb()
849 	struct tcphdr *th = tcp_hdr(skb);  in tcp_v6_inbound_md5_hash()  local
854 	hash_location = tcp_parse_md5sig_option(th);  in tcp_v6_inbound_md5_hash()
879 			       &ip6h->saddr, ntohs(th->source),  in tcp_v6_inbound_md5_hash()
880 			       &ip6h->daddr, ntohs(th->dest));  in tcp_v6_inbound_md5_hash()
912 	struct tcphdr *th = tcp_hdr(skb);  in tcp_v6_send_check()  local
915 		th->check = ~csum_ipv6_magic(&np->saddr, &np->daddr, len, IPPROTO_TCP,  0);  in tcp_v6_send_check()
919 		th->check = csum_ipv6_magic(&np->saddr, &np->daddr, len, IPPROTO_TCP,  in tcp_v6_send_check()
920 					    csum_partial(th, th->doff<<2,  in tcp_v6_send_check()
928 	struct tcphdr *th;  in tcp_v6_gso_send_check()  local
930 	if (!pskb_may_pull(skb, sizeof(*th)))  in tcp_v6_gso_send_check()
934 	th = tcp_hdr(skb);  in tcp_v6_gso_send_check()
936 	th->check = 0;  in tcp_v6_gso_send_check()
937 	th->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, skb->len,  in tcp_v6_gso_send_check()
970 	struct tcphdr *th = tcp_hdr(skb);  in tcp6_gro_complete()  local
972 	th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb),  in tcp6_gro_complete()
983 	struct tcphdr *th = tcp_hdr(skb), *t1;  in tcp_v6_send_response()  local
1009 	t1->dest = th->source;  in tcp_v6_send_response()
1010 	t1->source = th->dest;  in tcp_v6_send_response()
1014 	t1->ack = !rst || !th->ack;  in tcp_v6_send_response()
1072 	struct tcphdr *th = tcp_hdr(skb);  in tcp_v6_send_reset()  local
1076 	if (th->rst)  in tcp_v6_send_reset()
1087 	if (th->ack)  in tcp_v6_send_reset()
1088 		seq = ntohl(th->ack_seq);  in tcp_v6_send_reset()
1090 		ack_seq = ntohl(th->seq) + th->syn + th->fin + skb->len -  in tcp_v6_send_reset()
1091 			  (th->doff << 2);  in tcp_v6_send_reset()
1125 	const struct tcphdr *th = tcp_hdr(skb);  in tcp_v6_hnd_req()  local
1129 	req = inet6_csk_search_req(sk, &prev, th->source,  in tcp_v6_hnd_req()
1136 			&ipv6_hdr(skb)->saddr, th->source,  in tcp_v6_hnd_req()
1137 			&ipv6_hdr(skb)->daddr, ntohs(th->dest), inet6_iif(skb));  in tcp_v6_hnd_req()
1149 	if (!th->rst && !th->syn && th->ack)  in tcp_v6_hnd_req()
1621 	struct tcphdr *th;  in tcp_v6_rcv()  local
1637 	th = tcp_hdr(skb);  in tcp_v6_rcv()
1639 	if (th->doff < sizeof(struct tcphdr)/4)  in tcp_v6_rcv()
1641 	if (!pskb_may_pull(skb, th->doff*4))  in tcp_v6_rcv()
1647 	th = tcp_hdr(skb);  in tcp_v6_rcv()
1648 	TCP_SKB_CB(skb)->seq = ntohl(th->seq);  in tcp_v6_rcv()
1649 	TCP_SKB_CB(skb)->end_seq = (TCP_SKB_CB(skb)->seq + th->syn + th->fin +  in tcp_v6_rcv()
1650 				    skb->len - th->doff*4);  in tcp_v6_rcv()
1651 	TCP_SKB_CB(skb)->ack_seq = ntohl(th->ack_seq);  in tcp_v6_rcv()
1656 	sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);  in tcp_v6_rcv()
1698 	if (skb->len < (th->doff<<2) || tcp_checksum_complete(skb)) {  in tcp_v6_rcv()
1724 	if (skb->len < (th->doff<<2) || tcp_checksum_complete(skb)) {  in tcp_v6_rcv()
1730 	switch (tcp_timewait_state_process(inet_twsk(sk), skb, th)) {  in tcp_v6_rcv()
1737 					    ntohs(th->dest), inet6_iif(skb));  in tcp_v6_rcv()