DSA_LOOP_CPU_PORT 301 drivers/net/dsa/dsa_loop.c pdata->cd.netdev[DSA_LOOP_CPU_PORT] = &ps->netdev->dev; DSA_LOOP_CPU_PORT 15 drivers/net/dsa/dsa_loop_bdinfo.c .port_names[DSA_LOOP_CPU_PORT] = "cpu",