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 <j...@mellanox.com>
Signed-off-by: Florian Fainelli <f.faine...@gmail.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

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