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Date: Sun, 16 Aug 2009 09:42:49 -0400
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Subject: Re: [PATCH] Revert netlink ABI change to gnet_stats_basic
From: Michael Spang <mspang@csclub.uwaterloo.ca>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>,
       LKML <linux-kernel@vger.kernel.org>,
       Linux Netdev List <netdev@vger.kernel.org>
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On Sun, Aug 16, 2009 at 8:33 AM, Eric Dumazet<eric.dumazet@gmail.com> wrote:
>
> What exactly broke after patch was pushed ?

The libnl library refuses to initialize with 2.6.30 with pre-2.6.30
headers. With 2.6.30 I get

  $ libnl-1.1/src/nl-qdisc-dump brief
  Unable to retrieve qdisc cache

whereas previously I would get

  $ libnl-1.1/src/nl-qdisc-dump brief
  htb qdisc dev eth0 handle 01: parent root r2q 10000 default :02

It works fine if I use the headers from 2.6.30, but then I don't
believe it would work with older kernels.

Michael