Index: head/sys/dev/hyperv/vmbus/hv_channel.c
===================================================================
--- head/sys/dev/hyperv/vmbus/hv_channel.c
+++ head/sys/dev/hyperv/vmbus/hv_channel.c
@@ -1233,7 +1233,7 @@
 		 * Error is ignored here; don't have much to do if error
 		 * really happens.
 		 */
-		hv_vmbus_child_device_register(chan);
+		vmbus_add_child(chan);
 	}
 }
 
@@ -1274,7 +1274,7 @@
 
 	if (VMBUS_CHAN_ISPRIMARY(chan)) {
 		/* Only primary channel owns the device */
-		hv_vmbus_child_device_unregister(chan);
+		vmbus_delete_child(chan);
 		/* NOTE: DO NOT free primary channel for now */
 	} else {
 		struct vmbus_softc *sc = chan->vmbus_sc;
@@ -1336,7 +1336,7 @@
 		TAILQ_REMOVE(&sc->vmbus_prichans, chan, ch_prilink);
 		mtx_unlock(&sc->vmbus_prichan_lock);
 
-		hv_vmbus_child_device_unregister(chan);
+		vmbus_delete_child(chan);
 		vmbus_chan_free(chan);
 
 		mtx_lock(&sc->vmbus_prichan_lock);
Index: head/sys/dev/hyperv/vmbus/hv_vmbus_priv.h
===================================================================
--- head/sys/dev/hyperv/vmbus/hv_vmbus_priv.h
+++ head/sys/dev/hyperv/vmbus/hv_vmbus_priv.h
@@ -123,9 +123,4 @@
 uint32_t		hv_ring_buffer_read_end(
 				hv_vmbus_ring_buffer_info	*ring_info);
 
-int			hv_vmbus_child_device_register(
-					struct hv_vmbus_channel *chan);
-int			hv_vmbus_child_device_unregister(
-					struct hv_vmbus_channel *chan);
-
 #endif  /* __HYPERV_PRIV_H__ */
Index: head/sys/dev/hyperv/vmbus/vmbus.c
===================================================================
--- head/sys/dev/hyperv/vmbus/vmbus.c
+++ head/sys/dev/hyperv/vmbus/vmbus.c
@@ -1021,7 +1021,7 @@
 }
 
 int
-hv_vmbus_child_device_register(struct hv_vmbus_channel *chan)
+vmbus_add_child(struct hv_vmbus_channel *chan)
 {
 	struct vmbus_softc *sc = chan->vmbus_sc;
 	device_t parent = sc->vmbus_dev;
@@ -1046,7 +1046,7 @@
 }
 
 int
-hv_vmbus_child_device_unregister(struct hv_vmbus_channel *chan)
+vmbus_delete_child(struct hv_vmbus_channel *chan)
 {
 	int error;
 
Index: head/sys/dev/hyperv/vmbus/vmbus_var.h
===================================================================
--- head/sys/dev/hyperv/vmbus/vmbus_var.h
+++ head/sys/dev/hyperv/vmbus/vmbus_var.h
@@ -146,6 +146,8 @@
 void	vmbus_event_proc(struct vmbus_softc *, int);
 void	vmbus_event_proc_compat(struct vmbus_softc *, int);
 void	vmbus_handle_intr(struct trapframe *);
+int	vmbus_add_child(struct hv_vmbus_channel *);
+int	vmbus_delete_child(struct hv_vmbus_channel *);
 
 void	vmbus_et_intr(struct trapframe *);