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/fealnx.c b/drivers/net/fealnx.c
index 51b738dd6547..15f4f8d3d46d 100644
--- a/drivers/net/fealnx.c
+++ b/drivers/net/fealnx.c
@@ -1233,7 +1233,7 @@ static void fealnx_tx_timeout(struct net_device *dev)
 
         spin_unlock_irqrestore(&np->lock, flags);
 
-        dev->trans_start = jiffies;
+        dev->trans_start = jiffies; /* prevent tx timeout */
         np->stats.tx_errors++;
         netif_wake_queue(dev); /* or .._start_.. ?? */
 }
@@ -1374,7 +1374,6 @@ static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev)
                 netif_stop_queue(dev);
         ++np->really_tx_count;
         iowrite32(0, np->mem + TXPDR);
-        dev->trans_start = jiffies;
 
         spin_unlock_irqrestore(&np->lock, flags);
         return NETDEV_TX_OK;