dpif_flow_dump_state_init(dpif, &state);
while (dpif_flow_dump_next(&flow_dump, state, &key, &key_len,
&mask, &mask_len, &actions, &actions_len,
dpif_flow_dump_state_init(dpif, &state);
while (dpif_flow_dump_next(&flow_dump, state, &key, &key_len,
&mask, &mask_len, &actions, &actions_len,