From: David S. Miller <davem@davemloft.net>
Date: Wed, 4 May 2016 18:16:51 +0000 (-0400)
Subject: Merge branch 'kill_trans_start'
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4d659fcb20d3d3302b429c889a73a92ff2804b9a;p=linux-beck.git

Merge branch 'kill_trans_start'

Florian Westphal says:

====================
net: remove trans_start from struct net_device

We currently have two instances for trans_start, once in
net_device and once in netdev_queue.

This series removes trans_start from net_device.
Updates to dev->trans_start are replaced with updates to netdev queue 0.

This series is compile-tested only.
Replacement is done in 3 steps:

1. Replace read-accesses:
  x = dev->trans_start

  gets replaced by
  x = dev_trans_start(dev)

2. Replace write accesses:
  dev->trans_start = jiffies;

  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>
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4d659fcb20d3d3302b429c889a73a92ff2804b9a