Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (35 commits)
  NET: SB1250: Initialize .owner
  vxge: show startup message with KERN_INFO
  ll_temac: Fix missing iounmaps
  bridge: Clear IPCB before possible entry into IP stack
  bridge br_multicast: BUG: unable to handle kernel NULL pointer dereference
  net: Fix definition of netif_vdbg() when VERBOSE_DEBUG is defined
  net/ne: fix memory leak in ne_drv_probe()
  xfrm: fix xfrm by MARK logic
  virtio_net: fix oom handling on tx
  virtio_net: do not reschedule rx refill forever
  s2io: resolve statistics issues
  linux/net.h: fix kernel-doc warnings
  net: decreasing real_num_tx_queues needs to flush qdisc
  sched: qdisc_reset_all_tx is calling qdisc_reset without qdisc_lock
  qlge: fix a eeh handler to not add a pending timer
  qlge: Replacing add_timer() to mod_timer()
  usbnet: Set parent device early for netdev_printk()
  net: Revert "rndis_host: Poll status channel before control channel"
  netfilter: ip6t_REJECT: fix a dst leak in ipv6 REJECT
  drivers: bluetooth: bluecard_cs.c: Fixed include error, changed to linux/io.h
  ...

1 files changed, 16 insertions, 12 deletions

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 1edb7a61983c..bb6b67f6b0cc 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -415,7 +415,7 @@ static int add_recvbuf_mergeable(struct virtnet_info *vi, gfp_t gfp)
 static bool try_fill_recv(struct virtnet_info *vi, gfp_t gfp)
 {
         int err;
-        bool oom = false;
+        bool oom;
 
         do {
                 if (vi->mergeable_rx_bufs)
@@ -425,10 +425,9 @@ static bool try_fill_recv(struct virtnet_info *vi, gfp_t gfp)
                 else
                         err = add_recvbuf_small(vi, gfp);
 
-                if (err < 0) {
-                        oom = true;
+                oom = err == -ENOMEM;
+                if (err < 0)
                         break;
-                }
                 ++vi->num;
         } while (err > 0);
         if (unlikely(vi->num > vi->max))
@@ -563,7 +562,6 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
         struct virtnet_info *vi = netdev_priv(dev);
         int capacity;
 
-again:
         /* Free up any pending old buffers before queueing new ones. */
         free_old_xmit_skbs(vi);
 
@@ -572,14 +570,20 @@ again:
 
         /* This can happen with OOM and indirect buffers. */
         if (unlikely(capacity < 0)) {
-                netif_stop_queue(dev);
-                dev_warn(&dev->dev, "Unexpected full queue\n");
-                if (unlikely(!virtqueue_enable_cb(vi->svq))) {
-                        virtqueue_disable_cb(vi->svq);
-                        netif_start_queue(dev);
-                        goto again;
+                if (net_ratelimit()) {
+                        if (likely(capacity == -ENOMEM)) {
+                                dev_warn(&dev->dev,
+                                         "TX queue failure: out of memory\n");
+                        } else {
+                                dev->stats.tx_fifo_errors++;
+                                dev_warn(&dev->dev,
+                                         "Unexpected TX queue failure: %d\n",
+                                         capacity);
+                        }
                 }
-                return NETDEV_TX_BUSY;
+                dev->stats.tx_dropped++;
+                kfree_skb(skb);
+                return NETDEV_TX_OK;
         }
         virtqueue_kick(vi->svq);