- user_data_t ud = {
- .data = cb,
- .free_func = wg_callback_free
- };
-
- plugin_register_write (callback_name, wg_write, &ud);
+ plugin_register_write (callback_name, wg_write,
+ &(user_data_t) {
+ .data = cb,
+ .free_func = wg_callback_free,
+ });