NF_FLOW_HW_PENDING
clear_bit(NF_FLOW_HW_PENDING, &offload->flow->flags);
if (test_and_set_bit(NF_FLOW_HW_PENDING, &flow->flags))
clear_bit(NF_FLOW_HW_PENDING, &flow->flags);
!test_bit(NF_FLOW_HW_PENDING, &flow->flags) &&