skb_checksum_start
*(__sum16 *)(skb_checksum_start(skb) + skb->csum_offset) = 0;
l4.hdr = skb_checksum_start(skb);
l4.hdr = skb_checksum_start(skb);
l4.hdr = skb_checksum_start(skb);
l4.hdr = skb_checksum_start(skb);
network_hdr_len = skb_checksum_start(skb) - skb_network_header(skb);
l4.hdr = skb_checksum_start(skb);
unsigned char *csum_start = skb_checksum_start(skb);
l4.hdr = skb_checksum_start(skb);
unsigned char *csum_start = skb_checksum_start(skb);
network_hdr_len = skb_checksum_start(skb) - skb_network_header(skb);
l4.hdr = skb_checksum_start(skb);
unsigned char *csum_start = skb_checksum_start(skb);
network_hdr_len = skb_checksum_start(skb) - skb_network_header(skb);
network_hdr_len = skb_checksum_start(skb) - skb_network_header(skb);
l4.hdr = skb_checksum_start(skb);
unsigned char *csum_start = skb_checksum_start(skb);
l4.hdr = skb_checksum_start(skb);
unsigned char *csum_start = skb_checksum_start(skb);
network_hdr_len = skb_checksum_start(skb) - skb_network_header(skb);
l4hdr = skb_checksum_start(skb);
i3len = skb_checksum_start(skb) - skb_network_header(skb);
l3len = skb_checksum_start(skb) - skb_network_header(skb);
unsigned char *csum_start = skb_checksum_start(skb);
SKB_GSO_CB(skb)->csum_start = skb_checksum_start(skb) - skb->head;
skb_checksum_start(skb) < skb->data)
if (unlikely(skb_checksum_start(skb) != skb_transport_header(skb)))
if (unlikely(skb_checksum_start(gso_skb) !=