3 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
index 2140aacb633..32b9dcda68c 100644
--- a/include/linux/if_ether.h
+++ b/include/linux/if_ether.h
@@ -101,6 +101,7 @@
 #define ETH_P_ECONET    0x0018          /* Acorn Econet                 */
 #define ETH_P_HDLC      0x0019          /* HDLC frames                  */
 #define ETH_P_ARCNET    0x001A          /* 1A for ArcNet :-)            */
+#define ETH_P_DSA       0x001B          /* Distributed Switch Arch.     */
 #define ETH_P_PHONET    0x00F5          /* Nokia Phonet frames          */
 
 /*
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 794eeb4b346..97f0c64c152 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -42,6 +42,7 @@
 #include <linux/workqueue.h>
 
 #include <net/net_namespace.h>
+#include <net/dsa.h>
 
 struct vlan_group;
 struct ethtool_ops;
@@ -801,6 +802,16 @@ void dev_net_set(struct net_device *dev, struct net *net)
 #endif
 }
 
+static inline bool netdev_uses_dsa_tags(struct net_device *dev)
+{
+#ifdef CONFIG_NET_DSA_TAG_DSA
+        if (dev->dsa_ptr != NULL)
+                return dsa_uses_dsa_tags(dev->dsa_ptr);
+#endif
+
+        return 0;
+}
+
 /**
  *      netdev_priv - access network device private data
  *      @dev: network device
diff --git a/include/net/dsa.h b/include/net/dsa.h
index dc4784f5452..72e509b6a12 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -30,5 +30,7 @@ struct dsa_platform_data {
         char            *port_names[DSA_MAX_PORTS];
 };
 
+extern bool dsa_uses_dsa_tags(void *dsa_ptr);
+
 
 #endif