vlan_check_real_dev  307 net/8021q/vlan.c 	err = vlan_check_real_dev(real_dev, vlan_id);
vlan_check_real_dev   82 net/8021q/vlan.h int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id);
vlan_check_real_dev  123 net/8021q/vlan_netlink.c 	err = vlan_check_real_dev(real_dev, vlan->vlan_id);