sunvnet: Reset LDC_EVENT_DATA_READY when napi completes.

When vnet_event_napi re-enables interrupts, it should
reset LDC_EVENT_DATA_READY as an optimization.
Signed-off-by: NSowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/sun/sunvnet.c

@@ -760,6 +760,7 @@ static int vnet_poll(struct napi_struct *napi, int budget)
 
 	if (processed < budget) {
 		napi_complete(napi);
+		port->rx_event &= ~LDC_EVENT_DATA_READY;
 		vio_set_intr(vio->vdev->rx_ino, HV_INTR_ENABLED);
 	}
 	return processed;