ibmveth: Remove LLTX

The ibmveth adapter needs locking in the transmit routine to protect
the bounce_buffer but it sets LLTX and forgets to add any of its own
locking.

Just remove the deprecated LLTX option. Remove the stats lock in the process.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Santiago Leon <santil@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index 3515ef3..9d662de 100644 (file)
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -903,7 +903,6 @@ static netdev_tx_t ibmveth_start_xmit(struct sk_buff *skb,
        union ibmveth_buf_desc desc;
        unsigned long lpar_rc;
        unsigned long correlator;
-       unsigned long flags;
        unsigned int retry_count;
        unsigned int tx_dropped = 0;
        unsigned int tx_bytes = 0;
@@ -965,20 +964,18 @@ static netdev_tx_t ibmveth_start_xmit(struct sk_buff *skb,
        } else {
                tx_packets++;
                tx_bytes += skb->len;
-               netdev->trans_start = jiffies; /* NETIF_F_LLTX driver :( */
        }
 
        if (!used_bounce)
                dma_unmap_single(&adapter->vdev->dev, data_dma_addr,
                                 skb->len, DMA_TO_DEVICE);
 
-out:   spin_lock_irqsave(&adapter->stats_lock, flags);
+out:
        netdev->stats.tx_dropped += tx_dropped;
        netdev->stats.tx_bytes += tx_bytes;
        netdev->stats.tx_packets += tx_packets;
        adapter->tx_send_failed += tx_send_failed;
        adapter->tx_map_failed += tx_map_failed;
-       spin_unlock_irqrestore(&adapter->stats_lock, flags);
 
        dev_kfree_skb(skb);
        return NETDEV_TX_OK;
@@ -1290,8 +1287,6 @@ static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_
        netdev->netdev_ops = &ibmveth_netdev_ops;
        netdev->ethtool_ops = &netdev_ethtool_ops;
        SET_NETDEV_DEV(netdev, &dev->dev);
-       netdev->features |= NETIF_F_LLTX;
-       spin_lock_init(&adapter->stats_lock);
 
        memcpy(netdev->dev_addr, &adapter->mac_addr, netdev->addr_len);
 

diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h
index f3ede81..d5651c7 100644 (file)
--- a/drivers/net/ibmveth.h
+++ b/drivers/net/ibmveth.h
@@ -158,7 +158,6 @@ struct ibmveth_adapter {
     u64 rx_no_buffer;
     u64 tx_map_failed;
     u64 tx_send_failed;
-    spinlock_t stats_lock;
 };
 
 struct ibmveth_buf_desc_fields {