udp_v4_check 799 net/ipv4/udp.c uh->check = ~udp_v4_check(len, saddr, daddr, 0); udp_v4_check 802 net/ipv4/udp.c uh->check = udp_v4_check(len, saddr, daddr, lco_csum(skb)); udp_v4_check 809 net/ipv4/udp.c uh->check = ~udp_v4_check(len, saddr, daddr, 0); udp_v4_check 327 net/ipv4/udp_offload.c uh->check = udp_v4_check(skb->len, iph->saddr, iph->daddr, csum); udp_v4_check 548 net/ipv4/udp_offload.c uh->check = ~udp_v4_check(skb->len - nhoff, iph->saddr,