Index: head/sys/dev/hyperv/include/hyperv.h
===================================================================
--- head/sys/dev/hyperv/include/hyperv.h
+++ head/sys/dev/hyperv/include/hyperv.h
@@ -58,8 +58,6 @@
 #include <amd64/include/atomic.h>
 #include <dev/hyperv/include/hyperv_busdma.h>
 
-typedef uint8_t	hv_bool_uint8_t;
-
 #define HV_S_OK			0x00000000
 #define HV_E_FAIL		0x80004005
 #define HV_ERROR_NOT_SUPPORTED	0x80070032
@@ -90,8 +88,6 @@
 
 int	hyperv_guid2str(const struct hyperv_guid *, char *, size_t);
 
-#define HW_MACADDR_LEN	6
-
 /*
  * Common defines for Hyper-V ICs
  */
Index: head/sys/dev/hyperv/netvsc/hv_net_vsc.h
===================================================================
--- head/sys/dev/hyperv/netvsc/hv_net_vsc.h
+++ head/sys/dev/hyperv/netvsc/hv_net_vsc.h
@@ -53,6 +53,7 @@
 #include <netinet/in.h>
 #include <netinet/tcp_lro.h>
 
+#include <net/ethernet.h>
 #include <net/if.h>
 #include <net/if_media.h>
 
@@ -1065,12 +1066,12 @@
 	nvsp_msg				channel_init_packet;
 
 	nvsp_msg				revoke_packet;
-	/*uint8_t				hw_mac_addr[HW_MACADDR_LEN];*/
+	/*uint8_t				hw_mac_addr[ETHER_ADDR_LEN];*/
 
 	/* Holds rndis device info */
 	void					*extension;
 
-	hv_bool_uint8_t				destroy;
+	uint8_t					destroy;
 	/* Negotiated NVSP version */
 	uint32_t				nvsp_version;
 
@@ -1109,7 +1110,7 @@
 #endif
 
 typedef struct netvsc_packet_ {
-	hv_bool_uint8_t            is_data_pkt;      /* One byte */
+	uint8_t                    is_data_pkt;      /* One byte */
 	uint16_t		   vlan_tci;
 	uint32_t status;
 
@@ -1140,7 +1141,7 @@
 
 typedef struct {
 	uint8_t		mac_addr[6];  /* Assumption unsigned long */
-	hv_bool_uint8_t	link_state;
+	uint8_t		link_state;
 } netvsc_device_info;
 
 #ifndef HN_USE_TXDESC_BUFRING
Index: head/sys/dev/hyperv/netvsc/hv_rndis_filter.h
===================================================================
--- head/sys/dev/hyperv/netvsc/hv_rndis_filter.h
+++ head/sys/dev/hyperv/netvsc/hv_rndis_filter.h
@@ -31,6 +31,8 @@
 #ifndef __HV_RNDIS_FILTER_H__
 #define __HV_RNDIS_FILTER_H__
 
+#include <sys/param.h>
+#include <net/ethernet.h>
 
 /*
  * Defines
@@ -103,7 +105,7 @@
 
 	STAILQ_HEAD(RQ, rndis_request_)	myrequest_list;
 
-	uint8_t				hw_mac_addr[HW_MACADDR_LEN];
+	uint8_t				hw_mac_addr[ETHER_ADDR_LEN];
 } rndis_device;
 
 /*
Index: head/sys/dev/hyperv/netvsc/hv_rndis_filter.c
===================================================================
--- head/sys/dev/hyperv/netvsc/hv_rndis_filter.c
+++ head/sys/dev/hyperv/netvsc/hv_rndis_filter.c
@@ -699,7 +699,7 @@
 static inline int
 hv_rf_query_device_mac(rndis_device *device)
 {
-	uint32_t size = HW_MACADDR_LEN;
+	uint32_t size = ETHER_ADDR_LEN;
 
 	return (hv_rf_query_device(device,
 	    RNDIS_OID_802_3_PERMANENT_ADDRESS, device->hw_mac_addr, &size));
@@ -1126,7 +1126,7 @@
 		    "hv_rf_send_offload_request failed, ret=%d\n", ret);
 	}
 	
-	memcpy(dev_info->mac_addr, rndis_dev->hw_mac_addr, HW_MACADDR_LEN);
+	memcpy(dev_info->mac_addr, rndis_dev->hw_mac_addr, ETHER_ADDR_LEN);
 
 	hv_rf_query_device_link_status(rndis_dev);