dp_packet_set_flow_mark(struct dp_packet *p, uint32_t mark)
{
    p->flow_mark = mark;
    p->ol_flags |= DP_PACKET_OL_FLOW_MARK_MASK;
}
dp_packet_set_flow_mark(struct dp_packet *p, uint32_t mark)
{
    p->flow_mark = mark;
    p->ol_flags |= DP_PACKET_OL_FLOW_MARK_MASK;
}