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Date:	Tue, 11 Dec 2012 18:40:13 +0000
From:	Thomas Graf <tgraf@...g.ch>
To:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc:	David Miller <davem@...emloft.net>, David.Laight@...LAB.COM,
	netdev@...r.kernel.org
Subject: Re: [PATCH net-next 0/7] Allow to monitor multicast cache event via
 rtnetlink

On 12/11/12 at 04:03pm, Nicolas Dichtel wrote:
> In fact, it seems not so easy because most users of nlmsg_new() calculate
> the exact needed length, thus if we add an unpredicted attribute,
> the message will be too small.

True, we would either need to fix the calculations by accounting
for an additional 4 bytes for each 64bit arg or just reserve an
additional fixed amount for padding per message in nlmsg_new().
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