NETDEV_KIND_GRE   229 src/network/networkd-netdev-tunnel.c         case NETDEV_KIND_GRE:
NETDEV_KIND_GRE    40 src/network/networkd-netdev.c         [NETDEV_KIND_GRE] = &gre_vtable,
NETDEV_KIND_GRE    56 src/network/networkd-netdev.c         [NETDEV_KIND_GRE] = "gre",
NETDEV_KIND_GRE   417 src/network/networkd-network.c             netdev->kind != NETDEV_KIND_GRE &&