diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 456576f..d7f9fbb 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1924,6 +1924,7 @@ bool dsa_slave_dev_check(const struct net_device *dev)
 {
 	return dev->netdev_ops == &dsa_slave_netdev_ops;
 }
+EXPORT_SYMBOL_GPL(dsa_slave_dev_check);
 
 static int dsa_slave_changeupper(struct net_device *dev,
 				 struct netdev_notifier_changeupper_info *info)