netdev - Re: [PATCH net] bonding: fix arp monitoring with vlan slaves

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Date:	Fri, 02 Aug 2013 15:32:12 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	nikolay@...hat.com
Cc:	netdev@...r.kernel.org, andy@...yhouse.net, fubar@...ibm.com
Subject: Re: [PATCH net] bonding: fix arp monitoring with vlan slaves

From: Nikolay Aleksandrov <nikolay@...hat.com>
Date: Fri,  2 Aug 2013 18:41:05 +0200

> From: Nikolay Aleksandrov <Nikolay Aleksandrov nikolay@...hat.com>
> 
> When arp monitoring is enabled the bonding relies on slaves'
> dev_trans_start() value to check if the slave link is up or not, but for
> 8021q devices that value is either stale or 0, and can't be used. So use
> the 8021q's underlying device value.
> 
> Signed-off-by: Nikolay Aleksandrov <nikolay@...hat.com>

Handling this specially in bonding isn't really ideal.

Please either hide this detail in dev_trans_start(), or (preferrably)
have vlan_dev_hard_start_xmit() set the trans_start timestamp
properly thus making this just work for everything.

Thanks.
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