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via-rhine: Call dev_kfree/consume_skb_any instead of dev_kfree_skb. 

Replace dev_kfree_skb with dev_kfree_skb_any in rhine_start_tx which
can be called in hard irq and other contexts.  Packets are only freed
in rhine_start_tx if they are dropped.

Replace dev_kfree_skb with dev_consume_skb_any in rhine_tx that can be
called in hard irq and other contexts.  rhine_tx handles successfully
transmitted packets.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2014-03-15 18:22:47 -07:00
parent 20eca054e9
commit 4b3afc6e38
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/via/via-rhine.c
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@ -1676,7 +1676,7 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb,
/* Must use alignment buffer. */
if (skb->len > PKT_BUF_SZ) {
/* packet too long, drop it */
dev_kfree_skb(skb);
dev_kfree_skb_any(skb);
rp->tx_skbuff[entry] = NULL;
dev->stats.tx_dropped++;
return NETDEV_TX_OK;
@ -1696,7 +1696,7 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb,
pci_map_single(rp->pdev, skb->data, skb->len,
PCI_DMA_TODEVICE);
if (dma_mapping_error(&rp->pdev->dev, rp->tx_skbuff_dma[entry])) {
dev_kfree_skb(skb);
dev_kfree_skb_any(skb);
rp->tx_skbuff_dma[entry] = 0;
dev->stats.tx_dropped++;
return NETDEV_TX_OK;
@ -1834,7 +1834,7 @@ static void rhine_tx(struct net_device *dev)
rp->tx_skbuff[entry]->len,
PCI_DMA_TODEVICE);
}
dev_kfree_skb(rp->tx_skbuff[entry]);
dev_consume_skb_any(rp->tx_skbuff[entry]);
rp->tx_skbuff[entry] = NULL;
entry = (++rp->dirty_tx) % TX_RING_SIZE;
}