linux-kernel - Re: [PATCH linux-next 3/4] macvlan: fix possible NULL pointer dereference in macvlan_dev_get

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Message-Id: <20150414.134710.294383659780001841.davem@davemloft.net>
Date:	Tue, 14 Apr 2015 13:47:10 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	honli@...hat.com
Cc:	kaber@...sh.net, roland@...nel.org, sean.hefty@...el.com,
	hal.rosenstock@...il.com, alex.estrin@...el.com,
	dledford@...hat.com, edumazet@...gle.com, erezsh@...lanox.com,
	nicolas.dichtel@...nd.com, maheshb@...gle.com, jbenc@...hat.com,
	ebiederm@...ssion.com, elfring@...rs.sourceforge.net,
	f.fainelli@...il.com, linux@...ck-us.net, andrew@...n.ch,
	sfeldma@...il.com, alexander.h.duyck@...el.com,
	linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH linux-next 3/4] macvlan: fix possible NULL pointer
 dereference in macvlan_dev_get_iflink

From: Honggang LI <honli@...hat.com>
Date: Tue, 14 Apr 2015 23:32:39 +0800

> On Tue, Apr 14, 2015 at 04:26:27PM +0100, Patrick McHardy wrote:
>> 
>> That is completely useless. vlan (=netdev_priv) can not be NULL as
>> netdev_priv() never returns NULL and vlan->lowerdev is always valid
>> because a macvlan wouldn't make much sense otherwise.
> 
> OK, please drop this patch.

That's not how this works.

When a patch series needs any chnages, you must make a fresh, new
complete submission of the entire patch series.
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