linux-kernel - [PATCH net-next v2 03/16] staging: fsl-dpaa2: ethsw: Check bridge port flags during set

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Message-Id: <20190210175105.31629-4-f.fainelli@gmail.com>
Date:   Sun, 10 Feb 2019 09:50:52 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>, idosch@...lanox.com,
        linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
        bridge@...ts.linux-foundation.org, jiri@...lanox.com,
        andrew@...n.ch, vivien.didelot@...il.com
Subject: [PATCH net-next v2 03/16] staging: fsl-dpaa2: ethsw: Check bridge port flags during set

In preparation for removing SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
have ethsw check that the bridge port flags that are being set are
supported.

Acked-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/staging/fsl-dpaa2/ethsw/ethsw.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
index e559f4c25cf7..6228c4375835 100644
--- a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
@@ -680,8 +680,11 @@ static int port_attr_br_flags_set(struct net_device *netdev,
 	struct ethsw_port_priv *port_priv = netdev_priv(netdev);
 	int err = 0;
 
-	if (switchdev_trans_ph_prepare(trans))
+	if (switchdev_trans_ph_prepare(trans)) {
+		if (flags & ~(BR_LEARNING | BR_FLOOD))
+			return -EOPNOTSUPP;
 		return 0;
+	}
 
 	/* Learning is enabled per switch */
 	err = ethsw_set_learning(port_priv->ethsw_data, flags & BR_LEARNING);
-- 
2.19.1