diff --git a/sys/compat/linuxkpi/common/include/linux/etherdevice.h b/sys/compat/linuxkpi/common/include/linux/etherdevice.h
--- a/sys/compat/linuxkpi/common/include/linux/etherdevice.h
+++ b/sys/compat/linuxkpi/common/include/linux/etherdevice.h
@@ -27,6 +27,8 @@
 
 #include <linux/types.h>
 #include <linux/device.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
 
 #include <sys/random.h>
 #include <sys/libkern.h>
@@ -137,4 +139,25 @@
 	return (-ENOENT);
 }
 
+/* Returns network byte order. */
+static inline uint16_t
+eth_type_trans(struct sk_buff *skb, struct net_device *dev)
+{
+	pr_debug("%s: TODO\n", __func__);
+	return (htons(ETHERTYPE_8023));
+}
+
+static inline void
+eth_hw_addr_set(struct net_device *dev, const u8 *addr)
+{
+	pr_debug("%s: TODO (if we want to)\n", __func__);
+}
+
+static inline int
+eth_platform_get_mac_address(struct device *dev __unused, u8 *addr __unused)
+{
+	pr_debug("%s: TODO\n", __func__);
+	return (-ENODEV);
+}
+
 #endif					/* _LINUXKPI_LINUX_ETHERDEVICE_H_ */