From: "John W. Linville" <linville@tuxdriver.com>
To: Wang Chen <wangchen@cn.fujitsu.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Jeff Garzik <jgarzik@pobox.com>, NETDEV <netdev@vger.kernel.org>,
linux-wireless@vger.kernel.org
Subject: Re: [PATCH 14/18] netdevice airo: Convert directly reference of netdev->priv to netdev->ml_priv
Date: Fri, 5 Sep 2008 08:50:36 -0400 [thread overview]
Message-ID: <20080905125036.GA3027@tuxdriver.com> (raw)
In-Reply-To: <48C0A72B.9050407@cn.fujitsu.com>
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 <wangchen@cn.fujitsu.com>
Thank you for your patch. However, I do not understand why you didn't
simply replace netdev->priv with netdev_priv()? Can you explain?
Thanks,
John
--
John W. Linville
linville@tuxdriver.com
next prev parent reply other threads:[~2008-09-05 13:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <48C0A219.2030004@cn.fujitsu.com>
2008-09-05 3:27 ` [PATCH 14/18] netdevice airo: Convert directly reference of netdev->priv to netdev->ml_priv Wang Chen
2008-09-05 12:50 ` John W. Linville [this message]
2008-09-05 17:06 ` Dan Williams
2008-09-06 9:37 ` Wang Chen
2008-09-26 8:37 ` Wang Chen
2008-09-05 3:28 ` [PATCH 15/18] netdevice libertas: Fix directly reference of netdev->priv Wang Chen
2008-09-05 17:07 ` Dan Williams
2008-10-31 19:17 ` John W. Linville
2008-09-05 3:29 ` [PATCH 16/18] netdevice zd1201: Convert directly reference of netdev->priv to netdev->ml_priv Wang Chen
2008-09-05 12:56 ` John W. Linville
2008-10-31 18:22 ` John W. Linville
2008-10-31 18:48 ` [PATCH] netdevice zd1201: Convert directly reference of netdev->priv to netdev_priv() John W. Linville
2008-10-31 19:00 ` Stephen Hemminger
2008-11-03 2:06 ` Wang Chen
2008-12-18 6:53 ` [PATCH -next] netdevice zd1201: Use after free Wang Chen
2008-12-18 13:58 ` John W. Linville
2008-12-19 3:37 ` David Miller
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