From: Daniel Borkmann <dborkman@redhat.com>
Date: Thu, 7 Aug 2014 20:22:47 +0000 (+0200)
Subject: netlink: reset network header before passing to taps
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~76^2~34
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4e48ed883c72e78c5a910f8831ffe90c9b18f0ec;p=pandora-kernel.git

netlink: reset network header before passing to taps

netlink doesn't set any network header offset thus when the skb is
being passed to tap devices via dev_queue_xmit_nit(), it emits klog
false positives due to it being unset like:

  ...
  [  124.990397] protocol 0000 is buggy, dev nlmon0
  [  124.990411] protocol 0000 is buggy, dev nlmon0
  ...

So just reset the network header before passing to the device; for
packet sockets that just means nothing will change - mac and net
offset hold the same value just as before.

Reported-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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