inet_proto_csum_replace_by_diff
void inet_proto_csum_replace_by_diff(__sum16 *sum, struct sk_buff *skb,
inet_proto_csum_replace_by_diff(ptr, skb, to, is_pseudo, is_ipv6);
EXPORT_SYMBOL(inet_proto_csum_replace_by_diff);
inet_proto_csum_replace_by_diff(&ih->icmp6_cksum, skb,
inet_proto_csum_replace_by_diff(&th->check, skb,
inet_proto_csum_replace_by_diff(&uh->check, skb,