RSU_TX_LIST_COUNT
error = rsu_alloc_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT,
for (i = 0; i < RSU_TX_LIST_COUNT; i++) {
rsu_free_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT);
struct rsu_data sc_tx[RSU_TX_LIST_COUNT];