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Date:	Fri, 05 Sep 2008 13:06:23 -0400
From:	Dan Williams <>
To:	"John W. Linville" <>
Cc:	Wang Chen <>,
	"David S. Miller" <>,
	Jeff Garzik <>,
Subject: Re: [PATCH 14/18] netdevice airo: Convert directly reference of
	netdev->priv to netdev->ml_priv

On Fri, 2008-09-05 at 08:50 -0400, John W. Linville wrote:
> On Fri, Sep 05, 2008 at 11:27:39AM +0800, Wang Chen wrote:
> > We have some reasons to kill netdev->priv:
> > 1. netdev->priv is equal to netdev_priv().
> > 2. netdev_priv() wraps the calculation of netdev->priv's offset, obviously
> >    netdev_priv() is more flexible than netdev->priv.
> > But we cann't kill netdev->priv, because so many drivers reference to it
> > directly.
> > 
> > OK, becasue Dave S. Miller said, "every direct netdev->priv usage is a bug",
> > and I want to kill netdev->priv later, I decided to convert all the direct
> > reference of netdev->priv first.
> > 
> > Different to readonly reference of netdev->priv, in this driver, netdev->priv
> > was changed. I use netdev->ml_priv to replace netdev->priv.
> > 
> > Signed-off-by: Wang Chen <>
> Thank you for your patch.  However, I do not understand why you didn't
> simply replace netdev->priv with netdev_priv()?  Can you explain?

Yeah, that would have been my first choice too...


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