net: Have xmit_list() signal more==true when appropriate.

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/core/dev.c

@@ -2600,7 +2600,7 @@ netdev_features_t netif_skb_features(struct sk_buff *skb)
 EXPORT_SYMBOL(netif_skb_features);
 
 static int xmit_one(struct sk_buff *skb, struct net_device *dev,
-		    struct netdev_queue *txq)
+		    struct netdev_queue *txq, bool more)
 {
 	unsigned int len;
 	int rc;
@@ -2610,7 +2610,7 @@ static int xmit_one(struct sk_buff *skb, struct net_device *dev,
 
 	len = skb->len;
 	trace_net_dev_start_xmit(skb, dev);
-	rc = netdev_start_xmit(skb, dev, txq, false);
+	rc = netdev_start_xmit(skb, dev, txq, more);
 	trace_net_dev_xmit(skb, rc, dev, len);
 
 	return rc;
@@ -2626,7 +2626,7 @@ static struct sk_buff *xmit_list(struct sk_buff *first, struct net_device *dev,
 		struct sk_buff *next = skb->next;
 
 		skb->next = NULL;
-		rc = xmit_one(skb, dev, txq);
+		rc = xmit_one(skb, dev, txq, next != NULL);
 		if (unlikely(!dev_xmit_complete(rc))) {
 			skb->next = next;
 			goto out;
@@ -2705,7 +2705,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 			}
 		}
 
-		return xmit_one(skb, dev, txq);
+		return xmit_one(skb, dev, txq, false);
 	}
 
 gso: