1 files changed, 18 insertions, 0 deletions

diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index ddd33fd5904d..84ba5ac39e03 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -61,6 +61,7 @@ struct macvlan_dev {
         struct hlist_node       hlist;
         struct macvlan_port     *port;
         struct net_device       *lowerdev;
+        void                    *fwd_priv;
         struct macvlan_pcpu_stats __percpu *pcpu_stats;
 
         DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
@@ -118,4 +119,21 @@ extern int macvlan_link_register(struct rtnl_link_ops *ops);
 extern netdev_tx_t macvlan_start_xmit(struct sk_buff *skb,
                                       struct net_device *dev);
 
+#if IS_ENABLED(CONFIG_MACVLAN)
+static inline struct net_device *
+macvlan_dev_real_dev(const struct net_device *dev)
+{
+        struct macvlan_dev *macvlan = netdev_priv(dev);
+
+        return macvlan->lowerdev;
+}
+#else
+static inline struct net_device *
+macvlan_dev_real_dev(const struct net_device *dev)
+{
+        BUG();
+        return NULL;
+}
+#endif
+
 #endif /* _LINUX_IF_MACVLAN_H */