From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Thu, 29 Jan 2015 00:23:11 +0000 (-0800)
Subject: bridge: dont send notification when skb->len == 0 in rtnl_bridge_notify
X-Git-Tag: fixes-v4.0-rc1~200^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59ccaaaa49b5b096cdc1f16706a9f931416b2332;p=pandora-kernel.git

bridge: dont send notification when skb->len == 0 in rtnl_bridge_notify

Reported in: https://bugzilla.kernel.org/show_bug.cgi?id=92081

This patch avoids calling rtnl_notify if the device ndo_bridge_getlink
handler does not return any bytes in the skb.

Alternately, the skb->len check can be moved inside rtnl_notify.

For the bridge vlan case described in 92081, there is also a fix needed
in bridge driver to generate a proper notification. Will fix that in
subsequent patch.

v2: rebase patch on net tree

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed