netdev - Re: [PATCH 02/11] IB/ipoib: Notify the world before doing unregister

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Message-ID: <adatzptkjyk.fsf@cisco.com>
Date:	Mon, 17 Sep 2007 15:25:55 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Jay Vosburgh <fubar@...ibm.com>
Cc:	netdev@...r.kernel.org, monis@...taire.com, monisonlists@...il.com,
	ogerlitz@...taire.com, jgarzik@...ox.com, davem@...emloft.net,
	general@...ts.openfabrics.org
Subject: Re: [PATCH 02/11] IB/ipoib: Notify the world before doing unregister

Actually, thinking about this some more... would it be cleaner to more
the knowledge about bonding out of the ipoib driver?  in other words,
export something similar to

 > +static int ipoib_slave_detach(struct net_device *dev)
 > +{
 > +	int ret = 0;
 > +	if (dev->flags & IFF_SLAVE) {
 > +		dev->priv_flags |= IFF_SLAVE_DETACH;
 > +		rtnl_lock();
 > +		ret = call_netdevice_notifiers(NETDEV_CHANGE, dev);
 > +		rtnl_unlock();
 > +	}
 > +	return ret;
 > +}

for drivers to use, rather than putting use of IFF_SLAVE and
IFF_SLAVE_DETACH outside of the bonding driver.

Also it seems this function could return void, since both call sites
ignore the return value and I don't see anything sensible that IPoIB
could do with the notifier chain return value anyway.

 - R.
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