Staging: hv: remove OnChildDeviceRemove vmbus_driver callback

It's only ever set to one function, so just call that function instead.

Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/channel_mgmt.c

@@ -413,7 +413,7 @@ static void vmbus_process_rescind_offer(void *context)
 {
 	struct vmbus_channel *channel = context;
 
-	VmbusChildDeviceRemove(channel->device_obj);
+	vmbus_child_device_unregister(channel->device_obj);
 }
 
 /*
@@ -847,7 +847,7 @@ void vmbus_release_unattached_channels(void)
 				    "Releasing unattached device object %p",
 				    channel->device_obj);
 
-			VmbusChildDeviceRemove(channel->device_obj);
+			vmbus_child_device_unregister(channel->device_obj);
 			free_channel(channel);
 		} else {
 			if (!start)

drivers/staging/hv/vmbus.c

@@ -70,16 +70,6 @@ int VmbusChildDeviceAdd(struct hv_device *ChildDevice)
 	return vmbusDriver->OnChildDeviceAdd(gDevice, ChildDevice);
 }
 
-/*
- * VmbusChildDeviceRemove Unregisters the child device from the vmbus
- */
-void VmbusChildDeviceRemove(struct hv_device *ChildDevice)
-{
-	struct vmbus_driver *vmbusDriver = (struct vmbus_driver *)gDriver;
-
-	vmbusDriver->OnChildDeviceRemove(ChildDevice);
-}
-
 /*
  * VmbusOnDeviceAdd - Callback when the root bus device is added
  */

drivers/staging/hv/vmbus_api.h

@@ -124,7 +124,6 @@ struct vmbus_driver {
 	/* Set by the caller */
 	int (*OnChildDeviceAdd)(struct hv_device *RootDevice,
 				struct hv_device *ChildDevice);
-	void (*OnChildDeviceRemove)(struct hv_device *device);
 
 	/* Set by the callee */
 	int (*OnIsr)(struct hv_driver *driver);

drivers/staging/hv/vmbus_drv.c

@@ -71,7 +71,6 @@ static void vmbus_bus_release(struct device *device);
 
 static int vmbus_child_device_register(struct hv_device *root_device_obj,
 				       struct hv_device *child_device_obj);
-static void vmbus_child_device_unregister(struct hv_device *child_device_obj);
 static ssize_t vmbus_show_device_attr(struct device *dev,
 				      struct device_attribute *dev_attr,
 				      char *buf);
@@ -298,7 +297,6 @@ static int vmbus_bus_init(int (*drv_init)(struct hv_driver *drv))
 	 * devices on the bus
 	 */
 	vmbus_drv_obj->OnChildDeviceAdd = vmbus_child_device_register;
-	vmbus_drv_obj->OnChildDeviceRemove = vmbus_child_device_unregister;
 
 	/* Call to bus driver to initialize */
 	ret = drv_init(&vmbus_drv_obj->Base);
@@ -580,7 +578,7 @@ static int vmbus_child_device_register(struct hv_device *root_device_obj,
  * vmbus_child_device_unregister - Remove the specified child device
  * from the vmbus.
  */
-static void vmbus_child_device_unregister(struct hv_device *device_obj)
+void vmbus_child_device_unregister(struct hv_device *device_obj)
 {
 	struct vm_device *device_ctx = to_vm_device(device_obj);
 

drivers/staging/hv/vmbus_private.h

@@ -108,7 +108,7 @@ struct hv_device *vmbus_child_device_create(struct hv_guid *deviceType,
 
 int VmbusChildDeviceAdd(struct hv_device *Device);
 
-void VmbusChildDeviceRemove(struct hv_device *Device);
+void vmbus_child_device_unregister(struct hv_device *device_obj);
 
 /* static void */
 /* VmbusChildDeviceDestroy( */