Staging: hv: Remove the vm_device structure

Consolidate all device related state in struct hv_device by
moving the device field from struct vm_device to
struct hv_device. As part of this, also get rid of struct
vm_device since the consolidation is complete.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/blkvsc_drv.c

@@ -95,7 +95,7 @@ struct blkvsc_request {
 /* Per device structure */
 struct block_device_context {
 	/* point back to our device context */
-	struct vm_device *device_ctx;
+	struct hv_device *device_ctx;
 	struct kmem_cache *request_pool;
 	spinlock_t lock;
 	struct gendisk *gd;
@@ -240,8 +240,7 @@ static int blkvsc_probe(struct device *device)
 				drv_to_hv_drv(device->driver);
 	struct storvsc_driver_object *storvsc_drv_obj =
 				drv->priv;
-	struct vm_device *device_ctx = device_to_vm_device(device);
-	struct hv_device *device_obj = &device_ctx->device_obj;
+	struct hv_device *device_obj = device_to_hv_device(device);
 
 	struct block_device_context *blkdev = NULL;
 	struct storvsc_device_info device_info;
@@ -273,7 +272,7 @@ static int blkvsc_probe(struct device *device)
 	/* ASSERT(sizeof(struct blkvsc_request_group) <= */
 	/* 	sizeof(struct blkvsc_request)); */
 
-	blkdev->request_pool = kmem_cache_create(dev_name(&device_ctx->device),
+	blkdev->request_pool = kmem_cache_create(dev_name(&device_obj->device),
 					sizeof(struct blkvsc_request) +
 					storvsc_drv_obj->request_ext_size, 0,
 					SLAB_HWCACHE_ALIGN, NULL);
@@ -290,7 +289,7 @@ static int blkvsc_probe(struct device *device)
 		goto Cleanup;
 	}
 
-	blkdev->device_ctx = device_ctx;
+	blkdev->device_ctx = device_obj;
 	/* this identified the device 0 or 1 */
 	blkdev->target = device_info.target_id;
 	/* this identified the ide ctrl 0 or 1 */
@@ -723,8 +722,7 @@ static int blkvsc_remove(struct device *device)
 				drv_to_hv_drv(device->driver);
 	struct storvsc_driver_object *storvsc_drv_obj =
 				drv->priv;
-	struct vm_device *device_ctx = device_to_vm_device(device);
-	struct hv_device *device_obj = &device_ctx->device_obj;
+	struct hv_device *device_obj = device_to_hv_device(device);
 	struct block_device_context *blkdev = dev_get_drvdata(device);
 	unsigned long flags;
 	int ret;
@@ -839,7 +837,7 @@ static int blkvsc_submit_request(struct blkvsc_request *blkvsc_req,
 			void (*request_completion)(struct hv_storvsc_request *))
 {
 	struct block_device_context *blkdev = blkvsc_req->dev;
-	struct vm_device *device_ctx = blkdev->device_ctx;
+	struct hv_device *device_ctx = blkdev->device_ctx;
 	struct hv_driver *drv =
 			drv_to_hv_drv(device_ctx->device.driver);
 	struct storvsc_driver_object *storvsc_drv_obj =
@@ -884,7 +882,7 @@ static int blkvsc_submit_request(struct blkvsc_request *blkvsc_req,
 	storvsc_req->sense_buffer = blkvsc_req->sense_buffer;
 	storvsc_req->sense_buffer_size = SCSI_SENSE_BUFFERSIZE;
 
-	ret = storvsc_drv_obj->on_io_request(&blkdev->device_ctx->device_obj,
+	ret = storvsc_drv_obj->on_io_request(blkdev->device_ctx,
 					   &blkvsc_req->request);
 	if (ret == 0)
 		blkdev->num_outstanding_reqs++;

drivers/staging/hv/hv_mouse.c

@@ -771,7 +771,7 @@ static void MousevscOnCleanup(struct hv_driver *drv)
  * Data types
  */
 struct input_device_context {
-	struct vm_device	*device_ctx;
+	struct hv_device	*device_ctx;
 	struct hid_device	*hid_device;
 	struct hv_input_dev_info device_info;
 	int			connected;
@@ -782,9 +782,8 @@ static struct  mousevsc_drv_obj g_mousevsc_drv;
 
 static void deviceinfo_callback(struct hv_device *dev, struct hv_input_dev_info *info)
 {
-	struct vm_device *device_ctx = to_vm_device(dev);
 	struct input_device_context *input_device_ctx =
-		dev_get_drvdata(&device_ctx->device);
+		dev_get_drvdata(&dev->device);
 
 	memcpy(&input_device_ctx->device_info, info,
 	       sizeof(struct hv_input_dev_info));
@@ -796,9 +795,8 @@ static void inputreport_callback(struct hv_device *dev, void *packet, u32 len)
 {
 	int ret = 0;
 
-	struct vm_device *device_ctx = to_vm_device(dev);
 	struct input_device_context *input_dev_ctx =
-		dev_get_drvdata(&device_ctx->device);
+		dev_get_drvdata(&dev->device);
 
 	ret = hid_input_report(input_dev_ctx->hid_device,
 			      HID_INPUT_REPORT, packet, len, 1);
@@ -823,8 +821,7 @@ static int mousevsc_probe(struct device *device)
 		drv_to_hv_drv(device->driver);
 	struct mousevsc_drv_obj *mousevsc_drv_obj = drv->priv;
 
-	struct vm_device *device_ctx = device_to_vm_device(device);
-	struct hv_device *device_obj = &device_ctx->device_obj;
+	struct hv_device *device_obj = device_to_hv_device(device);
 	struct input_device_context *input_dev_ctx;
 
 	input_dev_ctx = kmalloc(sizeof(struct input_device_context),
@@ -852,8 +849,7 @@ static int mousevsc_remove(struct device *device)
 		drv_to_hv_drv(device->driver);
 	struct mousevsc_drv_obj *mousevsc_drv_obj = drv->priv;
 
-	struct vm_device *device_ctx = device_to_vm_device(device);
-	struct hv_device *device_obj = &device_ctx->device_obj;
+	struct hv_device *device_obj = device_to_hv_device(device);
 	struct input_device_context *input_dev_ctx;
 
 	input_dev_ctx = kmalloc(sizeof(struct input_device_context),
@@ -887,9 +883,8 @@ static int mousevsc_remove(struct device *device)
 
 static void reportdesc_callback(struct hv_device *dev, void *packet, u32 len)
 {
-	struct vm_device *device_ctx = to_vm_device(dev);
 	struct input_device_context *input_device_ctx =
-		dev_get_drvdata(&device_ctx->device);
+		dev_get_drvdata(&dev->device);
 	struct hid_device *hid_dev;
 
 	/* hid_debug = -1; */
@@ -910,7 +905,7 @@ static void reportdesc_callback(struct hv_device *dev, void *packet, u32 len)
 		hid_dev->vendor = input_device_ctx->device_info.vendor;
 		hid_dev->product = input_device_ctx->device_info.product;
 		hid_dev->version = input_device_ctx->device_info.version;
-		hid_dev->dev = device_ctx->device;
+		hid_dev->dev = dev->device;
 
 		sprintf(hid_dev->name, "%s",
 			input_device_ctx->device_info.name);

drivers/staging/hv/netvsc_drv.c

@@ -44,7 +44,7 @@
 
 struct net_device_context {
 	/* point back to our device context */
-	struct vm_device *device_ctx;
+	struct hv_device *device_ctx;
 	unsigned long avail;
 };
 
@@ -70,7 +70,7 @@ static void netvsc_set_multicast_list(struct net_device *net)
 static int netvsc_open(struct net_device *net)
 {
 	struct net_device_context *net_device_ctx = netdev_priv(net);
-	struct hv_device *device_obj = &net_device_ctx->device_ctx->device_obj;
+	struct hv_device *device_obj = net_device_ctx->device_ctx;
 	int ret = 0;
 
 	if (netif_carrier_ok(net)) {
@@ -93,7 +93,7 @@ static int netvsc_open(struct net_device *net)
 static int netvsc_close(struct net_device *net)
 {
 	struct net_device_context *net_device_ctx = netdev_priv(net);
-	struct hv_device *device_obj = &net_device_ctx->device_ctx->device_obj;
+	struct hv_device *device_obj = net_device_ctx->device_ctx;
 	int ret;
 
 	netif_stop_queue(net);
@@ -190,7 +190,7 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 	packet->completion.send.send_completion_ctx = packet;
 	packet->completion.send.send_completion_tid = (unsigned long)skb;
 
-	ret = net_drv_obj->send(&net_device_ctx->device_ctx->device_obj,
+	ret = net_drv_obj->send(net_device_ctx->device_ctx,
 				  packet);
 	if (ret == 0) {
 		net->stats.tx_bytes += skb->len;
@@ -218,8 +218,7 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 static void netvsc_linkstatus_callback(struct hv_device *device_obj,
 				       unsigned int status)
 {
-	struct vm_device *device_ctx = to_vm_device(device_obj);
-	struct net_device *net = dev_get_drvdata(&device_ctx->device);
+	struct net_device *net = dev_get_drvdata(&device_obj->device);
 
 	if (!net) {
 		DPRINT_ERR(NETVSC_DRV, "got link status but net device "
@@ -244,8 +243,7 @@ static void netvsc_linkstatus_callback(struct hv_device *device_obj,
 static int netvsc_recv_callback(struct hv_device *device_obj,
 				struct hv_netvsc_packet *packet)
 {
-	struct vm_device *device_ctx = to_vm_device(device_obj);
-	struct net_device *net = dev_get_drvdata(&device_ctx->device);
+	struct net_device *net = dev_get_drvdata(&device_obj->device);
 	struct sk_buff *skb;
 	void *data;
 	int i;
@@ -335,8 +333,7 @@ static int netvsc_probe(struct device *device)
 	struct hv_driver *drv =
 		drv_to_hv_drv(device->driver);
 	struct netvsc_driver *net_drv_obj = drv->priv;
-	struct vm_device *device_ctx = device_to_vm_device(device);
-	struct hv_device *device_obj = &device_ctx->device_obj;
+	struct hv_device *device_obj = device_to_hv_device(device);
 	struct net_device *net = NULL;
 	struct net_device_context *net_device_ctx;
 	struct netvsc_device_info device_info;
@@ -353,7 +350,7 @@ static int netvsc_probe(struct device *device)
 	netif_carrier_off(net);
 
 	net_device_ctx = netdev_priv(net);
-	net_device_ctx->device_ctx = device_ctx;
+	net_device_ctx->device_ctx = device_obj;
 	net_device_ctx->avail = ring_size;
 	dev_set_drvdata(device, net);
 
@@ -405,9 +402,8 @@ static int netvsc_remove(struct device *device)
 	struct hv_driver *drv =
 		drv_to_hv_drv(device->driver);
 	struct netvsc_driver *net_drv_obj = drv->priv;
-	struct vm_device *device_ctx = device_to_vm_device(device);
-	struct net_device *net = dev_get_drvdata(&device_ctx->device);
-	struct hv_device *device_obj = &device_ctx->device_obj;
+	struct hv_device *device_obj = device_to_hv_device(device);
+	struct net_device *net = dev_get_drvdata(&device_obj->device);
 	int ret;
 
 	if (net == NULL) {

drivers/staging/hv/storvsc_drv.c

@@ -42,7 +42,7 @@ struct host_device_context {
 	/* must be 1st field
 	 * FIXME this is a bug */
 	/* point back to our device context */
-	struct vm_device *device_ctx;
+	struct hv_device *device_ctx;
 	struct kmem_cache *request_pool;
 	unsigned int port;
 	unsigned char path;
@@ -216,8 +216,7 @@ static int storvsc_probe(struct device *device)
 	struct hv_driver *drv =
 				drv_to_hv_drv(device->driver);
 	struct storvsc_driver_object *storvsc_drv_obj = drv->priv;
-	struct vm_device *device_ctx = device_to_vm_device(device);
-	struct hv_device *device_obj = &device_ctx->device_obj;
+	struct hv_device *device_obj = device_to_hv_device(device);
 	struct Scsi_Host *host;
 	struct host_device_context *host_device_ctx;
 	struct storvsc_device_info device_info;
@@ -238,10 +237,10 @@ static int storvsc_probe(struct device *device)
 	memset(host_device_ctx, 0, sizeof(struct host_device_context));
 
 	host_device_ctx->port = host->host_no;
-	host_device_ctx->device_ctx = device_ctx;
+	host_device_ctx->device_ctx = device_obj;
 
 	host_device_ctx->request_pool =
-				kmem_cache_create(dev_name(&device_ctx->device),
+				kmem_cache_create(dev_name(&device_obj->device),
 					sizeof(struct storvsc_cmd_request) +
 					storvsc_drv_obj->request_ext_size, 0,
 					SLAB_HWCACHE_ALIGN, NULL);
@@ -298,8 +297,7 @@ static int storvsc_remove(struct device *device)
 	struct hv_driver *drv =
 			drv_to_hv_drv(device->driver);
 	struct storvsc_driver_object *storvsc_drv_obj = drv->priv;
-	struct vm_device *device_ctx = device_to_vm_device(device);
-	struct hv_device *device_obj = &device_ctx->device_obj;
+	struct hv_device *device_obj = device_to_hv_device(device);
 	struct Scsi_Host *host = dev_get_drvdata(device);
 	struct host_device_context *host_device_ctx =
 			(struct host_device_context *)host->hostdata;
@@ -589,7 +587,7 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd,
 	int ret;
 	struct host_device_context *host_device_ctx =
 		(struct host_device_context *)scmnd->device->host->hostdata;
-	struct vm_device *device_ctx = host_device_ctx->device_ctx;
+	struct hv_device *device_ctx = host_device_ctx->device_ctx;
 	struct hv_driver *drv =
 		drv_to_hv_drv(device_ctx->device.driver);
 	struct storvsc_driver_object *storvsc_drv_obj = drv->priv;
@@ -737,7 +735,7 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd,
 
 retry_request:
 	/* Invokes the vsc to start an IO */
-	ret = storvsc_drv_obj->on_io_request(&device_ctx->device_obj,
+	ret = storvsc_drv_obj->on_io_request(device_ctx,
 					   &cmd_request->request);
 	if (ret == -1) {
 		/* no more space */
@@ -824,18 +822,18 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
 	int ret;
 	struct host_device_context *host_device_ctx =
 		(struct host_device_context *)scmnd->device->host->hostdata;
-	struct vm_device *device_ctx = host_device_ctx->device_ctx;
+	struct hv_device *device_ctx = host_device_ctx->device_ctx;
 
 	DPRINT_INFO(STORVSC_DRV, "sdev (%p) dev obj (%p) - host resetting...",
-		    scmnd->device, &device_ctx->device_obj);
+		    scmnd->device, device_ctx);
 
 	/* Invokes the vsc to reset the host/bus */
-	ret = stor_vsc_on_host_reset(&device_ctx->device_obj);
+	ret = stor_vsc_on_host_reset(device_ctx);
 	if (ret != 0)
 		return ret;
 
 	DPRINT_INFO(STORVSC_DRV, "sdev (%p) dev obj (%p) - host reseted",
-		    scmnd->device, &device_ctx->device_obj);
+		    scmnd->device, device_ctx);
 
 	return ret;
 }

drivers/staging/hv/vmbus.h

@@ -29,19 +29,11 @@
 #include "vmbus_api.h"
 
 
-struct vm_device {
-	struct hv_device device_obj;
-	struct device device;
-};
 
-static inline struct vm_device *to_vm_device(struct hv_device *d)
-{
-	return container_of(d, struct vm_device, device_obj);
-}
 
-static inline struct vm_device *device_to_vm_device(struct device *d)
+static inline struct hv_device *device_to_hv_device(struct device *d)
 {
-	return container_of(d, struct vm_device, device);
+	return container_of(d, struct hv_device, device);
 }
 
 static inline struct hv_driver *drv_to_hv_drv(struct device_driver *d)

drivers/staging/hv/vmbus_api.h

@@ -128,6 +128,8 @@ struct hv_device {
 	/* the device instance id of this device */
 	struct hv_guid dev_instance;
 
+	struct device device;
+
 	struct vmbus_channel *channel;
 
 	/* Device extension; */

drivers/staging/hv/vmbus_drv.c

@@ -49,7 +49,7 @@ struct vmbus_driver_context {
 	struct tasklet_struct event_dpc;
 
 	/* The bus root device */
-	struct vm_device device_ctx;
+	struct hv_device device_ctx;
 };
 
 static int vmbus_match(struct device *device, struct device_driver *driver);
@@ -349,12 +349,12 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 				      struct device_attribute *dev_attr,
 				      char *buf)
 {
-	struct vm_device *device_ctx = device_to_vm_device(dev);
+	struct hv_device *device_ctx = device_to_hv_device(dev);
 	struct hv_device_info device_info;
 
 	memset(&device_info, 0, sizeof(struct hv_device_info));
 
-	get_channel_info(&device_ctx->device_obj, &device_info);
+	get_channel_info(device_ctx, &device_info);
 
 	if (!strcmp(dev_attr->attr.name, "class_id")) {
 		return sprintf(buf, "{%02x%02x%02x%02x-%02x%02x-%02x%02x-"
@@ -459,7 +459,7 @@ static int vmbus_bus_init(void)
 {
 	struct vmbus_driver_context *vmbus_drv_ctx = &vmbus_drv;
 	struct hv_driver *driver = &vmbus_drv.drv_obj;
-	struct vm_device *dev_ctx = &vmbus_drv.device_ctx;
+	struct hv_device *dev_ctx = &vmbus_drv.device_ctx;
 	int ret;
 	unsigned int vector;
 
@@ -530,9 +530,9 @@ static int vmbus_bus_init(void)
 	DPRINT_INFO(VMBUS_DRV, "irq 0x%x vector 0x%x", vmbus_irq, vector);
 
 	/* Call to bus driver to add the root device */
-	memset(dev_ctx, 0, sizeof(struct vm_device));
+	memset(dev_ctx, 0, sizeof(struct hv_device));
 
-	ret = driver->dev_add(&dev_ctx->device_obj, &vector);
+	ret = driver->dev_add(dev_ctx, &vector);
 	if (ret != 0) {
 		DPRINT_ERR(VMBUS_DRV,
 			   "ERROR - Unable to add vmbus root device");
@@ -585,11 +585,11 @@ static void vmbus_bus_exit(void)
 	struct hv_driver *driver = &vmbus_drv.drv_obj;
 	struct vmbus_driver_context *vmbus_drv_ctx = &vmbus_drv;
 
-	struct vm_device *dev_ctx = &vmbus_drv.device_ctx;
+	struct hv_device *dev_ctx = &vmbus_drv.device_ctx;
 
 	/* Remove the root device */
 	if (driver->dev_rm)
-		driver->dev_rm(&dev_ctx->device_obj);
+		driver->dev_rm(dev_ctx);
 
 	if (driver->cleanup)
 		driver->cleanup(driver);
@@ -664,12 +664,11 @@ 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;
 
 	/* Allocate the new child device */
-	child_device_ctx = kzalloc(sizeof(struct vm_device), GFP_KERNEL);
-	if (!child_device_ctx) {
+	child_device_obj = kzalloc(sizeof(struct hv_device), GFP_KERNEL);
+	if (!child_device_obj) {
 		DPRINT_ERR(VMBUS_DRV,
 			"unable to allocate device_context for child device");
 		return NULL;
@@ -680,7 +679,7 @@ struct hv_device *vmbus_child_device_create(struct hv_guid *type,
 		"%02x%02x%02x%02x%02x%02x%02x%02x},"
 		"id {%02x%02x%02x%02x-%02x%02x-%02x%02x-"
 		"%02x%02x%02x%02x%02x%02x%02x%02x}",
-		&child_device_ctx->device,
+		&child_device_obj->device,
 		type->data[3], type->data[2], type->data[1], type->data[0],
 		type->data[5], type->data[4], type->data[7], type->data[6],
 		type->data[8], type->data[9], type->data[10], type->data[11],
@@ -694,7 +693,6 @@ struct hv_device *vmbus_child_device_create(struct hv_guid *type,
 		instance->data[12], instance->data[13],
 		instance->data[14], instance->data[15]);
 
-	child_device_obj = &child_device_ctx->device_obj;
 	child_device_obj->channel = channel;
 	memcpy(&child_device_obj->dev_type, type, sizeof(struct hv_guid));
 	memcpy(&child_device_obj->dev_instance, instance,
@@ -711,39 +709,36 @@ int vmbus_child_device_register(struct hv_device *root_device_obj,
 				struct hv_device *child_device_obj)
 {
 	int ret = 0;
-	struct vm_device *root_device_ctx =
-				to_vm_device(root_device_obj);
-	struct vm_device *child_device_ctx =
-				to_vm_device(child_device_obj);
+
 	static atomic_t device_num = ATOMIC_INIT(0);
 
 	DPRINT_DBG(VMBUS_DRV, "child device (%p) registering",
-		   child_device_ctx);
+		   child_device_obj);
 
 	/* Set the device name. Otherwise, device_register() will fail. */
-	dev_set_name(&child_device_ctx->device, "vmbus_0_%d",
+	dev_set_name(&child_device_obj->device, "vmbus_0_%d",
 		     atomic_inc_return(&device_num));
 
 	/* The new device belongs to this bus */
-	child_device_ctx->device.bus = &vmbus_drv.bus; /* device->dev.bus; */
-	child_device_ctx->device.parent = &root_device_ctx->device;
-	child_device_ctx->device.release = vmbus_device_release;
+	child_device_obj->device.bus = &vmbus_drv.bus; /* device->dev.bus; */
+	child_device_obj->device.parent = &root_device_obj->device;
+	child_device_obj->device.release = vmbus_device_release;
 
 	/*
 	 * Register with the LDM. This will kick off the driver/device
 	 * binding...which will eventually call vmbus_match() and vmbus_probe()
 	 */
-	ret = device_register(&child_device_ctx->device);
+	ret = device_register(&child_device_obj->device);
 
 	/* vmbus_probe() error does not get propergate to device_register(). */
-	ret = child_device_ctx->device_obj.probe_error;
+	ret = child_device_obj->probe_error;
 
 	if (ret)
 		DPRINT_ERR(VMBUS_DRV, "unable to register child device (%p)",
-			   &child_device_ctx->device);
+			   &child_device_obj->device);
 	else
 		DPRINT_INFO(VMBUS_DRV, "child device (%p) registered",
-			    &child_device_ctx->device);
+			    &child_device_obj->device);
 
 	return ret;
 }
@@ -754,19 +749,18 @@ int vmbus_child_device_register(struct hv_device *root_device_obj,
  */
 void vmbus_child_device_unregister(struct hv_device *device_obj)
 {
-	struct vm_device *device_ctx = to_vm_device(device_obj);
 
 	DPRINT_INFO(VMBUS_DRV, "unregistering child device (%p)",
-		    &device_ctx->device);
+		    &device_obj->device);
 
 	/*
 	 * Kick off the process of unregistering the device.
 	 * This will call vmbus_remove() and eventually vmbus_device_release()
 	 */
-	device_unregister(&device_ctx->device);
+	device_unregister(&device_obj->device);
 
 	DPRINT_INFO(VMBUS_DRV, "child device (%p) unregistered",
-		    &device_ctx->device);
+		    &device_obj->device);
 }
 
 /*
@@ -778,8 +772,7 @@ void vmbus_child_device_unregister(struct hv_device *device_obj)
  */
 static int vmbus_uevent(struct device *device, struct kobj_uevent_env *env)
 {
-	struct vm_device *device_ctx = device_to_vm_device(device);
-	struct hv_device *dev = &device_ctx->device_obj;
+	struct hv_device *dev = device_to_hv_device(device);
 	int ret;
 
 	DPRINT_INFO(VMBUS_DRV, "generating uevent - VMBUS_DEVICE_CLASS_GUID={"
@@ -852,17 +845,17 @@ static int vmbus_match(struct device *device, struct device_driver *driver)
 {
 	int match = 0;
 	struct hv_driver *drv = drv_to_hv_drv(driver);
-	struct vm_device *device_ctx = device_to_vm_device(device);
+	struct hv_device *device_ctx = device_to_hv_device(device);
 
 	/* We found our driver ? */
-	if (memcmp(&device_ctx->device_obj.dev_type, &drv->dev_type,
+	if (memcmp(&device_ctx->dev_type, &drv->dev_type,
 		   sizeof(struct hv_guid)) == 0) {
 
-		device_ctx->device_obj.drv = drv->priv;
+		device_ctx->drv = drv->priv;
 		DPRINT_INFO(VMBUS_DRV,
 			    "device object (%p) set to driver object (%p)",
-			    &device_ctx->device_obj,
-			    device_ctx->device_obj.drv);
+			    &device_ctx,
+			    device_ctx->drv);
 
 		match = 1;
 	}
@@ -878,7 +871,7 @@ static int vmbus_match(struct device *device, struct device_driver *driver)
  */
 static void vmbus_probe_failed_cb(struct work_struct *context)
 {
-	struct vm_device *device_ctx = (struct vm_device *)context;
+	struct hv_device *device_ctx = (struct hv_device *)context;
 
 	/*
 	 * Kick off the process of unregistering the device.
@@ -897,13 +890,11 @@ static int vmbus_probe(struct device *child_device)
 	int ret = 0;
 	struct hv_driver *drv =
 			drv_to_hv_drv(child_device->driver);
-	struct vm_device *device_ctx =
-			device_to_vm_device(child_device);
-	struct hv_device *dev = &device_ctx->device_obj;
+	struct hv_device *dev = device_to_hv_device(child_device);
 
 	/* Let the specific open-source driver handles the probe if it can */
 	if (drv->driver.probe) {
-		ret = device_ctx->device_obj.probe_error =
+		ret = dev->probe_error =
 		drv->driver.probe(child_device);
 		if (ret != 0) {
 			DPRINT_ERR(VMBUS_DRV, "probe() failed for device %s "
@@ -1006,7 +997,7 @@ static void vmbus_bus_release(struct device *device)
  */
 static void vmbus_device_release(struct device *device)
 {
-	struct vm_device *device_ctx = device_to_vm_device(device);
+	struct hv_device *device_ctx = device_to_hv_device(device);
 
 	kfree(device_ctx);