eventdev: fix C++ include

The eventdev headers had issues when used from C++

* Missing closing "}" for the extern "C" block
* No automatic casting to/from void *

Fixes: a6562f6 ("eventdev: introduce event timer adapter")
Fixes: 32e3268 ("eventdev: add tracepoints")
Cc: stable@dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

lib/eventdev/rte_event_timer_adapter.h

@@ -678,4 +678,8 @@ rte_event_timer_cancel_burst(const struct rte_event_timer_adapter *adapter,
 	return adapter->cancel_burst(adapter, evtims, nb_evtims);
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __RTE_EVENT_TIMER_ADAPTER_H__ */

lib/eventdev/rte_eventdev.h

@@ -1805,7 +1805,7 @@ __rte_event_enqueue_burst(uint8_t dev_id, uint8_t port_id,
 		return 0;
 	}
 #endif
-	rte_eventdev_trace_enq_burst(dev_id, port_id, ev, nb_events, fn);
+	rte_eventdev_trace_enq_burst(dev_id, port_id, ev, nb_events, (void *)fn);
 	/*
 	 * Allow zero cost non burst mode routine invocation if application
 	 * requests nb_events as const one