netdev - Re: [PATCH 1/2] net: Allow to create links with given ifindex

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Date:	Thu, 02 Aug 2012 16:37:36 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	ebiederm@...ssion.com
Cc:	eric.dumazet@...il.com, xemul@...allels.com, netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] net: Allow to create links with given ifindex

From: ebiederm@...ssion.com (Eric W. Biederman)
Date: Thu, 02 Aug 2012 04:09:39 -0700

> Eric Dumazet <eric.dumazet@...il.com> writes:
> 
>> If ifindex are per network space, I guess we'll need to change
>> arp_hashfn() or else we'll use some slots more than others.
> 
> Darn.  I hate being right about there being a few places to fix
> up.
> 
> ndisc_hashfn also has the same limitation.

And netlabel's inteface hashing as well.

LLC works with ifindex hashing and is not namespace aware.  It's
should therefore limited to &init_net and therefore OK.  Likewise
for the CAN code.
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