TX_OFFLOAD_CSUM
*l3_type = (offload_type == TX_OFFLOAD_CSUM) ?
if (offload_type != TX_OFFLOAD_CSUM)
get_inner_l3_l4_type(skb, &ip, &l4, TX_OFFLOAD_CSUM, &l3_type,
get_inner_l4_info(skb, &l4, TX_OFFLOAD_CSUM, l4_proto, &l4_offload,
offload |= TX_OFFLOAD_CSUM;