From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Tue, 15 Sep 2015 21:44:29 +0000 (-0700)
Subject: rtnetlink: catch -EOPNOTSUPP errors from ndo_bridge_getlink
X-Git-Tag: omap-for-v4.3/fixes-rc5~84^2~74
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d64f69b0373a7d0bcec8b5da7712977518a8f42b;p=pandora-kernel.git

rtnetlink: catch -EOPNOTSUPP errors from ndo_bridge_getlink

problem reported:
	kernel 4.1.3
	------------
	# bridge vlan
	port	vlan ids
	eth0	 1 PVID Egress Untagged
	 	90
	 	91
	 	92
	 	93
	 	94
	 	95
	 	96
	 	97
	 	98
	 	99
	 	100

	vmbr0	 1 PVID Egress Untagged
	 	94

	kernel 4.2
	-----------
	# bridge vlan
	port	vlan ids

ndo_bridge_getlink can return -EOPNOTSUPP when an interfaces
ndo_bridge_getlink op is set to switchdev_port_bridge_getlink
and CONFIG_SWITCHDEV is not defined. This today can happen to
bond, rocker and team devices. This patch adds -EOPNOTSUPP
checks after calls to ndo_bridge_getlink.

Fixes: 85fdb956726ff2a ("switchdev: cut over to new switchdev_port_bridge_getlink")
Reported-by: Alexandre DERUMIER <aderumier@odiso.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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