netdev - Detecting backup slaves of bonding interface in network driver

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Message-ID: <494108D7.3040304@gslab.com>
Date:	Thu, 11 Dec 2008 18:04:31 +0530
From:	Poornima Kamath <poornimak@...ab.com>
To:	netdev@...r.kernel.org
Subject: Detecting backup slaves of bonding interface in network driver

Hi,
I have a network driver which creates virtual ethernet interfaces. I am 
using the bonding driver in the active backup mode for failover.
I want to detect the interfaces which are backup slaves in the driver.
I found that the  bonding driver sets the IFF_SLAVE_INACTIVE private 
flag of net_device structure for all the backup slaves.
But I dont see any callbacks in my driver when this flag is set.
I am planning to check the netdevice flags in the driver. Is it 
recommended to check the private flags of net_device ?
Or is there some better way in which I can find the backup slaves?

Thanks,
Poornima
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