From efd29b3d8266761570fd3f440e2d5aa24c678725 Mon Sep 17 00:00:00 2001
From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Sun, 11 Oct 2015 18:08:37 -0400
Subject: net: dsa: do not warn unsupported bridge ops

A DSA driver may not provide the port_join_bridge and port_leave_bridge
functions, so don't warn in such case.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index bb2bd3b..43d7342 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1276,7 +1276,7 @@ int dsa_slave_netdevice_event(struct notifier_block *unused,
 			goto out;
 
 		err = dsa_slave_master_changed(dev);
-		if (err)
+		if (err && err != -EOPNOTSUPP)
 			netdev_warn(dev, "failed to reflect master change\n");
 
 		break;
-- 
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