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/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 618c11222abc..24b58619f7c1 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -292,8 +292,6 @@ static netdev_tx_t sja1000_start_xmit(struct sk_buff *skb,
         for (i = 0; i < dlc; i++)
                 priv->write_reg(priv, dreg++, cf->data[i]);
 
-        dev->trans_start = jiffies;
-
         can_put_echo_skb(skb, dev, 0);
 
         priv->write_reg(priv, REG_CMR, CMD_TR);