Index: sys/dev/hyperv/netvsc/hv_net_vsc.c
===================================================================
--- sys/dev/hyperv/netvsc/hv_net_vsc.c
+++ sys/dev/hyperv/netvsc/hv_net_vsc.c
@@ -72,7 +72,7 @@
     const struct vmbus_chanpkt_hdr *pkt);
 static void hn_nvs_sent_none(struct hn_send_ctx *sndc,
     struct netvsc_dev_ *net_dev, struct vmbus_channel *chan,
-    const struct nvsp_msg_ *msg, int);
+    const void *, int);
 
 static struct hn_send_ctx	hn_send_ctx_none =
     HN_SEND_CTX_INITIALIZER(hn_nvs_sent_none, NULL);
@@ -756,16 +756,16 @@
 void
 hn_nvs_sent_xact(struct hn_send_ctx *sndc,
     struct netvsc_dev_ *net_dev __unused, struct vmbus_channel *chan __unused,
-    const struct nvsp_msg_ *msg, int dlen)
+    const void *data, int dlen)
 {
 
-	vmbus_xact_wakeup(sndc->hn_cbarg, msg, dlen);
+	vmbus_xact_wakeup(sndc->hn_cbarg, data, dlen);
 }
 
 static void
 hn_nvs_sent_none(struct hn_send_ctx *sndc __unused,
     struct netvsc_dev_ *net_dev __unused, struct vmbus_channel *chan __unused,
-    const struct nvsp_msg_ *msg __unused, int dlen __unused)
+    const void *data __unused, int dlen __unused)
 {
 	/* EMPTY */
 }
Index: sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
===================================================================
--- sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
+++ sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
@@ -792,8 +792,7 @@
 
 static void
 hn_tx_done(struct hn_send_ctx *sndc, struct netvsc_dev_ *net_dev,
-    struct vmbus_channel *chan, const struct nvsp_msg_ *msg __unused,
-    int dlen __unused)
+    struct vmbus_channel *chan, const void *data __unused, int dlen __unused)
 {
 	struct hn_txdesc *txd = sndc->hn_cbarg;
 	struct hn_tx_ring *txr;
Index: sys/dev/hyperv/netvsc/hv_rndis_filter.c
===================================================================
--- sys/dev/hyperv/netvsc/hv_rndis_filter.c
+++ sys/dev/hyperv/netvsc/hv_rndis_filter.c
@@ -93,10 +93,10 @@
 
 static void hn_rndis_sent_halt(struct hn_send_ctx *sndc,
     struct netvsc_dev_ *net_dev, struct vmbus_channel *chan,
-    const struct nvsp_msg_ *msg, int dlen);
+    const void *data, int dlen);
 static void hn_rndis_sent_cb(struct hn_send_ctx *sndc,
     struct netvsc_dev_ *net_dev, struct vmbus_channel *chan,
-    const struct nvsp_msg_ *msg, int dlen);
+    const void *data, int dlen);
 
 /*
  * Set the Per-Packet-Info with the specified type
@@ -1272,7 +1272,7 @@
 
 static void
 hn_rndis_sent_cb(struct hn_send_ctx *sndc, struct netvsc_dev_ *net_dev,
-    struct vmbus_channel *chan __unused, const struct nvsp_msg_ *msg __unused,
+    struct vmbus_channel *chan __unused, const void *data __unused,
     int dlen __unused)
 {
 	if (sndc->hn_chim_idx != HN_NVS_CHIM_IDX_INVALID)
@@ -1281,7 +1281,7 @@
 
 static void
 hn_rndis_sent_halt(struct hn_send_ctx *sndc, struct netvsc_dev_ *net_dev,
-    struct vmbus_channel *chan __unused, const struct nvsp_msg_ *msg __unused,
+    struct vmbus_channel *chan __unused, const void *data __unused,
     int dlen __unused)
 {
 	rndis_request *request = sndc->hn_cbarg;
Index: sys/dev/hyperv/netvsc/if_hnvar.h
===================================================================
--- sys/dev/hyperv/netvsc/if_hnvar.h
+++ sys/dev/hyperv/netvsc/if_hnvar.h
@@ -42,7 +42,7 @@
 
 typedef void		(*hn_sent_callback_t)
 			(struct hn_send_ctx *, struct netvsc_dev_ *,
-			 struct vmbus_channel *, const struct nvsp_msg_ *, int);
+			 struct vmbus_channel *, const void *, int);
 
 struct hn_send_ctx {
 	hn_sent_callback_t	hn_cb;
@@ -98,7 +98,7 @@
 
 void		hn_nvs_sent_xact(struct hn_send_ctx *sndc,
 		    struct netvsc_dev_ *net_dev, struct vmbus_channel *chan,
-		    const struct nvsp_msg_ *msg, int dlen);
+		    const void *data, int dlen);
 void		hn_chim_free(struct netvsc_dev_ *net_dev, uint32_t chim_idx);
 
 #endif	/* !_IF_HNVAR_H_ */