1 files changed, 13 insertions, 4 deletions

diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index c9bfa004abed..46568b85c333 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -47,11 +47,20 @@ EXPORT_SYMBOL_GPL(netdev_switch_parent_id_get);
 int netdev_switch_port_stp_update(struct net_device *dev, u8 state)
 {
         const struct swdev_ops *ops = dev->swdev_ops;
+        struct net_device *lower_dev;
+        struct list_head *iter;
+        int err = -EOPNOTSUPP;
 
-        if (!ops || !ops->swdev_port_stp_update)
-                return -EOPNOTSUPP;
-        WARN_ON(!ops->swdev_parent_id_get);
-        return ops->swdev_port_stp_update(dev, state);
+        if (ops && ops->swdev_port_stp_update)
+                return ops->swdev_port_stp_update(dev, state);
+
+        netdev_for_each_lower_dev(dev, lower_dev, iter) {
+                err = netdev_switch_port_stp_update(lower_dev, state);
+                if (err && err != -EOPNOTSUPP)
+                        return err;
+        }
+
+        return err;
 }
 EXPORT_SYMBOL_GPL(netdev_switch_port_stp_update);