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Message-Id: <20130803.115228.1509916868029010372.davem@davemloft.net>
Date: Sat, 03 Aug 2013 11:52:28 -0700 (PDT)
From: David Miller <davem@...emloft.net>
To: vfalico@...hat.com
Cc: nikolay@...hat.com, netdev@...r.kernel.org, fubar@...ibm.com,
jhs@...atatu.com
Subject: Re: [net] net_sched: make dev_trans_start return vlan's real dev
trans_start
From: Veaceslav Falico <vfalico@...hat.com>
Date: Sat, 3 Aug 2013 19:07:33 +0200
> On Sat, Aug 03, 2013 at 05:07:51PM +0200, nikolay@...hat.com wrote:
> ...snip...
>>+ while (is_vlan_dev(dev))
>>+ dev = vlan_dev_real_dev(dev);
>
> While at it - I've checked a few users (mainly network drivers) of
> vlan_dev_real_dev(dev) and they all rely on that the return device
> would be the *real* device, but not another vlan.
Did you find any cases that want the device under the VLAN,
whether it is a non-vlan device or not?
> So maybe we should move this while loop to vlan_dev_real_dev()
> instead?
Perhaps. As per above, we may also need the one-level demux
helper too, something like "vlan_dev_slave(dev)".
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