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, 3 deletions

diff --git a/drivers/net/3c515.c b/drivers/net/3c515.c
index 2e17837be546..569e269f282e 100644
--- a/drivers/net/3c515.c
+++ b/drivers/net/3c515.c
@@ -992,7 +992,7 @@ static void corkscrew_timeout(struct net_device *dev)
                 if (!(inw(ioaddr + EL3_STATUS) & CmdInProgress))
                         break;
         outw(TxEnable, ioaddr + EL3_CMD);
-        dev->trans_start = jiffies;
+        dev->trans_start = jiffies; /* prevent tx timeout */
         dev->stats.tx_errors++;
         dev->stats.tx_dropped++;
         netif_wake_queue(dev);
@@ -1055,7 +1055,6 @@ static netdev_tx_t corkscrew_start_xmit(struct sk_buff *skb,
                                 prev_entry->status &= ~0x80000000;
                         netif_wake_queue(dev);
                 }
-                dev->trans_start = jiffies;
                 return NETDEV_TX_OK;
         }
         /* Put out the doubleword header... */
@@ -1091,7 +1090,6 @@ static netdev_tx_t corkscrew_start_xmit(struct sk_buff *skb,
                 outw(SetTxThreshold + (1536 >> 2), ioaddr + EL3_CMD);
 #endif                          /* bus master */
 
-        dev->trans_start = jiffies;
 
         /* Clear the Tx status stack. */
         {