net: memzero mp params when closing a queue

Instead of resetting memory provider parameters one by one in
__net_mp_{open,close}_rxq, memzero the entire structure. It'll be used
to extend the structure.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>

Author: isilence

net/core/netdev_rx_queue.c

@@ -139,10 +139,9 @@ int __net_mp_open_rxq(struct net_device *dev, unsigned int rxq_idx,
 
 	rxq->mp_params = *p;
 	ret = netdev_rx_queue_restart(dev, rxq_idx);
-	if (ret) {
-		rxq->mp_params.mp_ops = NULL;
-		rxq->mp_params.mp_priv = NULL;
-	}
+	if (ret)
+		memset(&rxq->mp_params, 0, sizeof(rxq->mp_params));
+
 	return ret;
 }
 
@@ -179,8 +178,7 @@ void __net_mp_close_rxq(struct net_device *dev, unsigned int ifq_idx,
 			 rxq->mp_params.mp_priv != old_p->mp_priv))
 		return;
 
-	rxq->mp_params.mp_ops = NULL;
-	rxq->mp_params.mp_priv = NULL;
+	memset(&rxq->mp_params, 0, sizeof(rxq->mp_params));
 	err = netdev_rx_queue_restart(dev, ifq_idx);
 	WARN_ON(err && err != -ENETDOWN);
 }