- ud.data = tctx;
- ud.free_func = kafka_topic_context_free;
-
- status = plugin_register_write (callback_name, kafka_write, &ud);
+ status = plugin_register_write (callback_name, kafka_write,
+ &(user_data_t) {
+ .data = tctx,
+ .free_func = kafka_topic_context_free,
+ });