- if (sk->sk_no_check == UDP_CSUM_NOXMIT) {
- skb->ip_summed = CHECKSUM_NONE;
- goto send;
- }
-
- if (skb_queue_len(&sk->sk_write_queue) == 1) {
- skb->csum = csum_partial((char *)uh,
- sizeof(struct udphdr), skb->csum);
- uh->check = csum_ipv6_magic(&fl->fl6_src,
- &fl->fl6_dst,
- up->len, fl->proto, skb->csum);
- } else {
- u32 tmp_csum = 0;
-
- skb_queue_walk(&sk->sk_write_queue, skb) {
- tmp_csum = csum_add(tmp_csum, skb->csum);
- }
- tmp_csum = csum_partial((char *)uh,
- sizeof(struct udphdr), tmp_csum);
- tmp_csum = csum_ipv6_magic(&fl->fl6_src,
- &fl->fl6_dst,
- up->len, fl->proto, tmp_csum);
- uh->check = tmp_csum;
+ if (up->pcflag)
+ csum = udplite_csum_outgoing(sk, skb);
+ else
+ csum = udp_csum_outgoing(sk, skb);