gets replaced with new helper:
netif_trans_update(dev);
3. This helper is then changed to set
netdev_get_tx_queue(dev, 0)->trans_start
instead of dev->trans_start.
After this dev->trans_start can be removed.
It should be noted that after this series several instances
of netif_trans_update() are useless (if they occur in
.ndo_start_xmit and driver doesn't set LLTX flag -- stack already
did an update).
Comments welcome.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>