Staging: hv: remove unneeded OnHostReset callback

This callback only calls one function, so just call the function
instead, no need for indirection at all.

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

drivers/staging/hv/StorVsc.c

@@ -625,7 +625,7 @@ static int StorVscOnDeviceRemove(struct hv_device *Device)
 	return 0;
 }
 
-static int StorVscOnHostReset(struct hv_device *Device)
+int StorVscOnHostReset(struct hv_device *Device)
 {
 	struct storvsc_device *storDevice;
 	struct storvsc_request_extension *request;
@@ -842,7 +842,6 @@ int StorVscInitialize(struct hv_driver *Driver)
 	storDriver->Base.OnCleanup	= StorVscOnCleanup;
 
 	storDriver->OnIORequest		= StorVscOnIORequest;
-	storDriver->OnHostReset		= StorVscOnHostReset;
 
 	DPRINT_EXIT(STORVSC);
 

drivers/staging/hv/StorVscApi.h

@@ -94,7 +94,6 @@ struct storvsc_driver_object {
 	/* Specific to this driver */
 	int (*OnIORequest)(struct hv_device *Device,
 			   struct hv_storvsc_request *Request);
-	int (*OnHostReset)(struct hv_device *Device);
 };
 
 struct storvsc_device_info {
@@ -105,6 +104,7 @@ struct storvsc_device_info {
 
 /* Interface */
 int StorVscInitialize(struct hv_driver *driver);
+int StorVscOnHostReset(struct hv_device *Device);
 int BlkVscInitialize(struct hv_driver *driver);
 
 #endif /* _STORVSC_API_H_ */

drivers/staging/hv/storvsc_drv.c

@@ -870,22 +870,14 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
 	struct host_device_context *host_device_ctx =
 		(struct host_device_context *)scmnd->device->host->hostdata;
 	struct device_context *device_ctx = host_device_ctx->device_ctx;
-	struct driver_context *driver_ctx =
-			driver_to_driver_context(device_ctx->device.driver);
-	struct storvsc_driver_context *storvsc_drv_ctx =
-			(struct storvsc_driver_context *)driver_ctx;
-
-	struct storvsc_driver_object *storvsc_drv_obj =
-			&storvsc_drv_ctx->drv_obj;
 
 	DPRINT_ENTER(STORVSC_DRV);
 
 	DPRINT_INFO(STORVSC_DRV, "sdev (%p) dev obj (%p) - host resetting...",
 		    scmnd->device, &device_ctx->device_obj);
 
 	/* Invokes the vsc to reset the host/bus */
-	ASSERT(storvsc_drv_obj->OnHostReset);
-	ret = storvsc_drv_obj->OnHostReset(&device_ctx->device_obj);
+	ret = StorVscOnHostReset(&device_ctx->device_obj);
 	if (ret != 0) {
 		DPRINT_EXIT(STORVSC_DRV);
 		return ret;