netif_get_port_parent_id
err = netif_get_port_parent_id(priv->netdev, &ppid, false);
int netif_get_port_parent_id(struct net_device *dev,
err = netif_get_port_parent_id(dev, &ppid, false);
err = netif_get_port_parent_id(lower_dev, ppid, true);
EXPORT_SYMBOL(netif_get_port_parent_id);
if (netif_get_port_parent_id(a, &a_id, true) ||
netif_get_port_parent_id(b, &b_id, true))
ret = netif_get_port_parent_id(netdev, &ppid, false);
err = netif_get_port_parent_id(dev, &ppid, false);
err = netif_get_port_parent_id(dev, &ppid, true);