init arp ring related issues

[alandtsang]

/* Create ring according to ports actually being used. */
    nb_ports = ff_global_cfg.dpdk.nb_ports;
    for (i = 0; i < nb_ports; i++) {
        uint8_t port_id = ff_global_cfg.dpdk.port_cfgs[i].port_id;

        for(i = 0; i < nb_procs; ++i) {
            snprintf(name_buf, RTE_RING_NAMESIZE, "ring_%d_%d", i, port_id);
            if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
                arp_ring[i][port_id] = rte_ring_create(name_buf,
                    ARP_RING_SIZE, socketid,
                    RING_F_SC_DEQ);
            } else {
                arp_ring[i][port_id] = rte_ring_lookup(name_buf);
            }

            /* === Here ====*/
            if (arp_ring[i][port_id] == NULL)
                rte_panic("create kni ring::%s failed!\n", name_buf);

            /* === And here ====*/
            if (rte_ring_lookup(name_buf) != arp_ring[i][port_id])
                rte_panic("lookup kni ring:%s failed!\n", name_buf);

            printf("create arp ring:%s success, %u ring entries are now free!\n",
                name_buf, rte_ring_free_count(arp_ring[i][port_id]));
        }
    }

I can not understand how this code have to do with kni ring, is this a typo? Or I understand wrong. Thanks

[whl739]

The below rte_ring_lookup should be called after rte_ring_create, i will fix it.