In preparation for removing SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
handle the SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS attribute and check
that the bridge port flags being configured are supported.

Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
 drivers/staging/fsl-dpaa2/ethsw/ethsw.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c 
b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
index 1b3943b71254..331625137717 100644
--- a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
@@ -666,6 +666,16 @@ static int port_attr_stp_state_set(struct net_device 
*netdev,
        return ethsw_port_set_stp_state(port_priv, state);
 }
 
+static int port_attr_br_flags_pre_set(struct net_device *netdev,
+                                     struct switchdev_trans *trans,
+                                     unsigned long flags)
+{
+       if (flags & ~(BR_LEARNING | BR_FLOOD))
+               return -EINVAL;
+
+       return 0;
+}
+
 static int port_attr_br_flags_set(struct net_device *netdev,
                                  struct switchdev_trans *trans,
                                  unsigned long flags)
@@ -698,6 +708,10 @@ static int swdev_port_attr_set(struct net_device *netdev,
                err = port_attr_stp_state_set(netdev, trans,
                                              attr->u.stp_state);
                break;
+       case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
+               err = port_attr_br_flags_pre_set(netdev, trans,
+                                                attr->u.brport_flags);
+               break;
        case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
                err = port_attr_br_flags_set(netdev, trans,
                                             attr->u.brport_flags);
-- 
2.17.1

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