net: dont update dev->trans_start

Second round of drivers for Gb cards (and NIU one I forgot in the 10GB round)

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/yellowfin.c b/drivers/net/yellowfin.c
index 7477ffdcddb4..3c7a5053f1da 100644
--- a/drivers/net/yellowfin.c
+++ b/drivers/net/yellowfin.c
@@ -717,7 +717,7 @@ static void yellowfin_tx_timeout(struct net_device *dev)
         if (yp->cur_tx - yp->dirty_tx < TX_QUEUE_SIZE)
                 netif_wake_queue (dev);         /* Typical path */
 
-        dev->trans_start = jiffies;
+        dev->trans_start = jiffies; /* prevent tx timeout */
         dev->stats.tx_errors++;
 }
 
@@ -876,7 +876,6 @@ static int yellowfin_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 netif_start_queue (dev);                /* Typical path */
         else
                 yp->tx_full = 1;
-        dev->trans_start = jiffies;
 
         if (yellowfin_debug > 4) {
                 printk(KERN_DEBUG "%s: Yellowfin transmit frame #%d queued in slot %d.\n",