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/sc92031.c b/drivers/net/sc92031.c
index 1b3260588933..8c4067af32b0 100644
--- a/drivers/net/sc92031.c
+++ b/drivers/net/sc92031.c
@@ -987,8 +987,6 @@ static netdev_tx_t sc92031_start_xmit(struct sk_buff *skb,
         iowrite32(tx_status, port_base + TxStatus0 + entry * 4);
         mmiowb();
 
-        dev->trans_start = jiffies;
-
         if (priv->tx_head - priv->tx_tail >= NUM_TX_DESC)
                 netif_stop_queue(dev);