net: trans_start cleanups

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.

Exceptions are NETIF_F_LLTX drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index da45f01279c4..16803251a999 100644
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -972,7 +972,7 @@ static void tx_timeout(struct net_device *dev)
 
         dev->if_port = 0;
 
-        dev->trans_start = jiffies;
+        dev->trans_start = jiffies; /* prevent tx timeout */
         dev->stats.tx_errors++;
         if (np->cur_tx - np->dirty_tx < TX_QUEUE_LEN - 4) {
                 netif_wake_queue(dev);
@@ -1084,7 +1084,6 @@ start_tx (struct sk_buff *skb, struct net_device *dev)
         } else {
                 netif_stop_queue (dev);
         }
-        dev->trans_start = jiffies;
         if (netif_msg_tx_queued(np)) {
                 printk (KERN_DEBUG
                         "%s: Transmit frame #%d queued in slot %d.\n",