tcp_v6_check
th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb),
th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0);
th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0);
th->check = ~tcp_v6_check(skb->len - depth, &iph->saddr,
~tcp_v6_check(len, &ipv6h->saddr, &ipv6h->daddr, 0);
th->check = ~tcp_v6_check(len, &ip6->saddr, &ip6->daddr, 0);
th->check = ~tcp_v6_check(len, &ip6->saddr, &ip6->daddr, 0);
tcp->check = tcp_v6_check(payload_len, &ipv6->saddr,
tcp->check = ~tcp_v6_check(skb->len - tcp_off, &ipv6->saddr,
th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb),
th->check = ~tcp_v6_check(skb->len, saddr, daddr, 0);
th->check = ~tcp_v6_check(0, &ipv6h->saddr, &ipv6h->daddr, 0);
th->check = ~tcp_v6_check(skb->len - thoff, &iph->saddr,
nth->check = ~tcp_v6_check(tcp_hdr_size, &niph->saddr, &niph->daddr, 0);