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/3c507.c b/drivers/net/3c507.c
index 9e95afa49fbe..c4e272fbc2cc 100644
--- a/drivers/net/3c507.c
+++ b/drivers/net/3c507.c
@@ -504,7 +504,7 @@ static void el16_tx_timeout (struct net_device *dev)
                 outb (0, ioaddr + SIGNAL_CA);   /* Issue channel-attn. */
                 lp->last_restart = dev->stats.tx_packets;
         }
-        dev->trans_start = jiffies;
+        dev->trans_start = jiffies; /* prevent tx timeout */
         netif_wake_queue (dev);
 }
 
@@ -528,7 +528,6 @@ static netdev_tx_t el16_send_packet (struct sk_buff *skb,
 
         hardware_send_packet (dev, buf, skb->len, length - skb->len);
 
-        dev->trans_start = jiffies;
         /* Enable the 82586 interrupt input. */
         outb (0x84, ioaddr + MISC_CTRL);