netdev - Re: [PATCH] ipv4: devconf: start IPV4_DEVCONF

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Date:	Thu, 13 Jan 2011 15:51:15 +0300
From:	Alexey Kuznetsov <kuznet@....inr.ac.ru>
To:	tgraf@...radead.org, netdev@...r.kernel.org
Subject: Re: [PATCH] ipv4: devconf: start IPV4_DEVCONF_* from 0

Hello!

On Thu, Jan 13, 2011 at 05:02:24AM -0500, Thomas Graf wrote:
> The reason I didn't change anything was the same as Dave's reply, I
> thought it must have been done on purpose.

The days, when this was written, 0 was interpreted as end of array by sysctl core.
BTW, -1=CTL_ANY also used to be special, that's why NET_PROTO_CONF_ALL=-2 rather than -1.

So, yes, it was done on purpose. And, yes, this purpose is not a legal purpose now.

Alexey
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