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, 0 insertions, 1 deletions

diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index bd857a20a755..6d76236ea069 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -2889,7 +2889,6 @@ static netdev_tx_t cas_start_xmit(struct sk_buff *skb, struct net_device *dev)
          */
         if (cas_xmit_tx_ringN(cp, ring++ & N_TX_RINGS_MASK, skb))
                 return NETDEV_TX_BUSY;
-        dev->trans_start = jiffies;
         return NETDEV_TX_OK;
 }