tree 979d92224e21b69368a27bb684b74b3d4d744183
parent 65ac8851490ec97a96759af729132c96f925a795
author Eric Dumazet <eric.dumazet@gmail.com> 1243317481 -0700
committer David S. Miller <davem@davemloft.net> 1243317481 -0700

net: txq_trans_update() helper

We would like to get rid of netdev->trans_start = jiffies; that about all net
drivers have to use in their start_xmit() function, and use txq->trans_start
instead.

This can be done generically in core network, as suggested by David.

Some devices, (particularly loopback) dont need trans_start update, because
they dont have transmit watchdog. We could add a new device flag, or rely
on fact that txq->tran_start can be updated is txq->xmit_lock_owner is
different than -1. Use a helper function to hide our choice.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>