netdev - Re: netlink: allow empty nested attributes

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Message-Id: <20081128.030547.243314805.davem@davemloft.net>
Date:	Fri, 28 Nov 2008 03:05:47 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	kaber@...sh.net
Cc:	tgraf@...g.ch, johannes@...solutions.net, netdev@...r.kernel.org
Subject: Re: netlink: allow empty nested attributes

From: Patrick McHardy <kaber@...sh.net>
Date: Thu, 27 Nov 2008 13:57:19 +0100

> commit 57b0afc97f8249f0b4f665aa285ed89a9178ba42
> Author: Patrick McHardy <kaber@...sh.net>
> Date:   Thu Nov 27 13:40:31 2008 +0100
> 
>     netlink: allow empty nested attributes
>     
>     validate_nla() currently doesn't allow empty nested attributes. This
>     makes userspace code unnecessarily complicated when starting and ending
>     the nested attribute is done by generic upper level code and the inner
>     attributes are dumped by a module.
>     
>     Add a special case to accept empty nested attributes. When the nested
>     attribute is non empty, the same checks as before are performed.
>     
>     Signed-off-by: Patrick McHardy <kaber@...sh.net>

Applied, thanks Patrick.
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