bond_verify_device_path
tags = bond_verify_device_path(bond->dev, upper, 0);
tags = bond_verify_device_path(upper, end_dev, level + 1);
tags = bond_verify_device_path(bond->dev, rt->dst.dev, 0);
tags = bond_verify_device_path(bond->dev, dst->dev, 0);
struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev,