linux-kernel - [PATCH 4.4 071/137] bridge: Allow set bridge ageing time when switchdev disabled

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Message-Id: <20160418022511.942361686@linuxfoundation.org>
Date:	Mon, 18 Apr 2016 11:28:53 +0900
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Haishuang Yan <yanhaishuang@...s.chinamobile.com>,
	Ido Schimmel <idosch@...lanox.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.4 071/137] bridge: Allow set bridge ageing time when switchdev disabled

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Haishuang Yan <yanhaishuang@...s.chinamobile.com>

[ Upstream commit 5e263f712691615fb802f06c98d7638c378f5d11 ]

When NET_SWITCHDEV=n, switchdev_port_attr_set will return -EOPNOTSUPP,
we should ignore this error code and continue to set the ageing time.

Fixes: c62987bbd8a1 ("bridge: push bridge setting ageing_time down to switchdev")
Signed-off-by: Haishuang Yan <yanhaishuang@...s.chinamobile.com>
Acked-by: Ido Schimmel <idosch@...lanox.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/bridge/br_stp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -586,7 +586,7 @@ int br_set_ageing_time(struct net_bridge
 	int err;
 
 	err = switchdev_port_attr_set(br->dev, &attr);
-	if (err)
+	if (err && err != -EOPNOTSUPP)
 		return err;
 
 	br->ageing_time = t;