netdev - Re: Why is gre0 auto-created, and can we fix it?

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Date:	Sat, 21 Jan 2012 13:40:36 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	greearb@...delatech.com
Cc:	khc@...waw.pl, netdev@...r.kernel.org
Subject: Re: Why is gre0 auto-created, and can we fix it?

From: Ben Greear <greearb@...delatech.com>
Date: Sat, 21 Jan 2012 09:48:52 -0800

> On 01/21/2012 09:39 AM, Krzysztof Halasa wrote:
>> Ben Greear<greearb@...delatech.com>  writes:
>>
>>>>> As far as I can tell, no other interfaces are auto-created
>>>>> in this manner.
>>>>
>>>> ip6tnl0 and sit0 do it too, just grep for alloc_netdev() under
>>>> net/{ipv4,ipv6}/
>>>
>>> So, no changing the behaviour?
>>
>> Perhaps making it CONFIGurable would be safe enough, not that I like
>> CONFIG options for all tiny details (one may argue it's not a tiny
>> detail).
>>
>> Haven't looked at the actual code.
> 
> Seems like it could be a run-time configurable, maybe module or boot
> option
> or sysctl or something.

I would seriously prefer that you not do this.
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