GENEVE_TUNL_DEV1
err = add_geneve_tunnel(GENEVE_TUNL_DEV0, GENEVE_TUNL_DEV1,
if (tc_prog_attach(GENEVE_TUNL_DEV1, get_fd, set_fd))
delete_tunnel(GENEVE_TUNL_DEV0, GENEVE_TUNL_DEV1);