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-rw-r--r--drivers/net/virtio_net.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index ee7571195b10..bb6b67f6b0cc 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -562,7 +562,6 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
562 struct virtnet_info *vi = netdev_priv(dev); 562 struct virtnet_info *vi = netdev_priv(dev);
563 int capacity; 563 int capacity;
564 564
565again:
566 /* Free up any pending old buffers before queueing new ones. */ 565 /* Free up any pending old buffers before queueing new ones. */
567 free_old_xmit_skbs(vi); 566 free_old_xmit_skbs(vi);
568 567
@@ -571,14 +570,20 @@ again:
571 570
572 /* This can happen with OOM and indirect buffers. */ 571 /* This can happen with OOM and indirect buffers. */
573 if (unlikely(capacity < 0)) { 572 if (unlikely(capacity < 0)) {
574 netif_stop_queue(dev); 573 if (net_ratelimit()) {
575 dev_warn(&dev->dev, "Unexpected full queue\n"); 574 if (likely(capacity == -ENOMEM)) {
576 if (unlikely(!virtqueue_enable_cb(vi->svq))) { 575 dev_warn(&dev->dev,
577 virtqueue_disable_cb(vi->svq); 576 "TX queue failure: out of memory\n");
578 netif_start_queue(dev); 577 } else {
579 goto again; 578 dev->stats.tx_fifo_errors++;
579 dev_warn(&dev->dev,
580 "Unexpected TX queue failure: %d\n",
581 capacity);
582 }
580 } 583 }
581 return NETDEV_TX_BUSY; 584 dev->stats.tx_dropped++;
585 kfree_skb(skb);
586 return NETDEV_TX_OK;
582 } 587 }
583 virtqueue_kick(vi->svq); 588 virtqueue_kick(vi->svq);
584 589