SKB_GSO_CB
SKB_GSO_CB(inner_skb)->mac_offset;
SKB_GSO_CB(skb)->mac_offset += (new_headroom - headroom);
SKB_GSO_CB(skb)->csum = res;
SKB_GSO_CB(skb)->csum_start = skb_checksum_start(skb) - skb->head;
int plen = (skb->head + SKB_GSO_CB(skb)->csum_start) - csum_start;
__wsum partial = SKB_GSO_CB(skb)->csum;
SKB_GSO_CB(skb)->csum = res;
SKB_GSO_CB(skb)->csum_start = csum_start - skb->head;
sizeof(*SKB_GSO_CB(skb)) > sizeof(skb->cb));
SKB_GSO_CB(skb)->mac_offset = skb_headroom(skb);
SKB_GSO_CB(skb)->encap_level = 0;
SKB_GSO_CB(nskb)->csum =
SKB_GSO_CB(nskb)->csum_start =
SKB_GSO_CB(nskb)->csum =
SKB_GSO_CB(nskb)->csum_start =
SKB_GSO_CB(iter)->data_offset = skb_headroom(iter) + doffset;
encap = SKB_GSO_CB(skb)->encap_level > 0;
SKB_GSO_CB(skb)->encap_level += ihl;
SKB_GSO_CB(skb)->data_offset +
SKB_GSO_CB(skb)->data_offset -
SKB_GSO_CB(skb)->encap_level = 0;
SKB_GSO_CB(skb)->encap_level = 0;
SKB_GSO_CB(skb)->data_offset +
encap = SKB_GSO_CB(skb)->encap_level > 0;
SKB_GSO_CB(skb)->encap_level += sizeof(*ipv6h);
SKB_GSO_CB(skb)->data_offset +
packet_start = (u8 *) skb->head + SKB_GSO_CB(skb)->mac_offset;
SKB_GSO_CB(skb)->mac_offset -= frag_hdr_sz;
SKB_GSO_CB(skb)->csum = (__force __wsum)~0;
SKB_GSO_CB(skb)->csum_start = skb_headroom(skb) + skb->len;