extern const struct vport_ops ovs_internal_vport_ops;
extern const struct vport_ops ovs_patch_vport_ops;
extern const struct vport_ops ovs_gre_vport_ops;
+extern const struct vport_ops ovs_gre_ft_vport_ops;
extern const struct vport_ops ovs_gre64_vport_ops;
extern const struct vport_ops ovs_capwap_vport_ops;