Staging: hv: remove OnChildDeviceCreate 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

@@ -355,7 +355,7 @@ static void vmbus_process_offer(void *context)
 	 * We need to set the DeviceObject field before calling
 	 * VmbusChildDeviceAdd()
 	 */
-	newchannel->device_obj = VmbusChildDeviceCreate(
+	newchannel->device_obj = vmbus_child_device_create(
 		&newchannel->offermsg.offer.InterfaceType,
 		&newchannel->offermsg.offer.InterfaceInstance,
 		newchannel);

drivers/staging/hv/vmbus.c

@@ -60,19 +60,6 @@ static void VmbusGetChannelOffers(void)
 	vmbus_request_offers();
 }
 
-/*
- * VmbusCreateChildDevice - Creates the child device on the bus that represents the channel offer
- */
-struct hv_device *VmbusChildDeviceCreate(struct hv_guid *DeviceType,
-					 struct hv_guid *DeviceInstance,
-					 struct vmbus_channel *channel)
-{
-	struct vmbus_driver *vmbusDriver = (struct vmbus_driver *)gDriver;
-
-	return vmbusDriver->OnChildDeviceCreate(DeviceType, DeviceInstance,
-						channel);
-}
-
 /*
  * VmbusChildDeviceAdd - Registers the child device with the vmbus
  */

drivers/staging/hv/vmbus_api.h

@@ -122,9 +122,6 @@ struct vmbus_driver {
 	struct hv_driver Base;
 
 	/* Set by the caller */
-	struct hv_device * (*OnChildDeviceCreate)(struct hv_guid *DeviceType,
-						struct hv_guid *DeviceInstance,
-						struct vmbus_channel *channel);
 	void (*OnChildDeviceDestroy)(struct hv_device *device);
 	int (*OnChildDeviceAdd)(struct hv_device *RootDevice,
 				struct hv_device *ChildDevice);

drivers/staging/hv/vmbus_drv.c

@@ -69,9 +69,6 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id);
 static void vmbus_device_release(struct device *device);
 static void vmbus_bus_release(struct device *device);
 
-static struct hv_device *vmbus_child_device_create(struct hv_guid *type,
-						   struct hv_guid *instance,
-						   struct vmbus_channel *channel);
 static void vmbus_child_device_destroy(struct hv_device *device_obj);
 static int vmbus_child_device_register(struct hv_device *root_device_obj,
 				       struct hv_device *child_device_obj);
@@ -301,7 +298,6 @@ static int vmbus_bus_init(int (*drv_init)(struct hv_driver *drv))
 	 * Set this up to allow lower layer to callback to add/remove child
 	 * devices on the bus
 	 */
-	vmbus_drv_obj->OnChildDeviceCreate = vmbus_child_device_create;
 	vmbus_drv_obj->OnChildDeviceDestroy = vmbus_child_device_destroy;
 	vmbus_drv_obj->OnChildDeviceAdd = vmbus_child_device_register;
 	vmbus_drv_obj->OnChildDeviceRemove = vmbus_child_device_unregister;
@@ -492,9 +488,9 @@ EXPORT_SYMBOL(vmbus_child_driver_unregister);
  * vmbus_child_device_create - Creates and registers a new child device
  * on the vmbus.
  */
-static struct hv_device *vmbus_child_device_create(struct hv_guid *type,
-						   struct hv_guid *instance,
-						   struct vmbus_channel *channel)
+struct hv_device *vmbus_child_device_create(struct hv_guid *type,
+					    struct hv_guid *instance,
+					    struct vmbus_channel *channel)
 {
 	struct vm_device *child_device_ctx;
 	struct hv_device *child_device_obj;

drivers/staging/hv/vmbus_private.h

@@ -102,7 +102,7 @@ extern struct VMBUS_CONNECTION gVmbusConnection;
 
 /* General vmbus interface */
 
-struct hv_device *VmbusChildDeviceCreate(struct hv_guid *deviceType,
+struct hv_device *vmbus_child_device_create(struct hv_guid *deviceType,
 					 struct hv_guid *deviceInstance,
 					 struct vmbus_channel *channel);