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, 2 deletions

diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c
index a4859f7a7cc0..d45b08d1dbc9 100644
--- a/drivers/net/wan/dscc4.c
+++ b/drivers/net/wan/dscc4.c
@@ -1175,8 +1175,6 @@ static netdev_tx_t dscc4_start_xmit(struct sk_buff *skb,
         spin_unlock(&dpriv->lock);
 #endif
 
-        dev->trans_start = jiffies;
-
         if (debug > 2)
                 dscc4_tx_print(dev, dpriv, "Xmit");
         /* To be cleaned(unsigned int)/optimized. Later, ok ? */