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-rw-r--r--net/switchdev/switchdev.c17
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);