linux-kernel - Re: [PATCH net] ipv6:export nd

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Message-Id: <20111206.125743.160144181036493070.davem@davemloft.net>
Date:	Tue, 06 Dec 2011 12:57:43 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	panweiping3@...il.com
Cc:	kuznet@....inr.ac.ru, jmorris@...ei.org, yoshfuji@...ux-ipv6.org,
	kaber@...sh.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] ipv6:export nd_tbl

From: Weiping Pan <panweiping3@...il.com>
Date: Tue,  6 Dec 2011 14:52:41 +0800

> A customer wants to use nd_tbl in his kernel module,
> the easiest way is to export nd_tbl, just as arp_tbl.
> 
> There were some requests to export nd_tbl, like:
> http://marc.info/?l=netfilter-devel&m=111416950824614&w=2
> http://marc.info/?l=linux-netdev&m=110715893206991&w=2
> 
> But they were all rejected.
> I want to know the reason why can't nd_tbl be exported just as arp_tbl,
> and how can we look up nd_tbl without exporting it.
> 
> Signed-off-by: Weiping Pan <panweiping3@...il.com>

We do not accomodate out-of-tree code, arp_tbl is exported because
modules (such as ATM clip) in the upstream tree use that symbol.
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