[S390] Use tape_generic_offline directly.

tape_3590_offline and tape_34xx_offline are removed and tape_generic_offline
is called directly instead.
Signed-off-by: NFrank Munzert <munzert@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/char/tape.h

@@ -285,7 +285,7 @@ extern int tape_mtop(struct tape_device *, int, int);
 extern void tape_state_set(struct tape_device *, enum tape_state);
 
 extern int tape_generic_online(struct tape_device *, struct tape_discipline *);
-extern int tape_generic_offline(struct tape_device *device);
+extern int tape_generic_offline(struct ccw_device *);
 
 /* Externals from tape_devmap.c */
 extern int tape_generic_probe(struct ccw_device *);

drivers/s390/char/tape_34xx.c

@@ -1294,12 +1294,6 @@ tape_34xx_online(struct ccw_device *cdev)
 	);
 }
 
-static int
-tape_34xx_offline(struct ccw_device *cdev)
-{
-	return tape_generic_offline(cdev->dev.driver_data);
-}
-
 static struct ccw_driver tape_34xx_driver = {
 	.name = "tape_34xx",
 	.owner = THIS_MODULE,
@@ -1307,7 +1301,7 @@ static struct ccw_driver tape_34xx_driver = {
 	.probe = tape_generic_probe,
 	.remove = tape_generic_remove,
 	.set_online = tape_34xx_online,
-	.set_offline = tape_34xx_offline,
+	.set_offline = tape_generic_offline,
 };
 
 static int

drivers/s390/char/tape_3590.c

@@ -1707,19 +1707,13 @@ tape_3590_online(struct ccw_device *cdev)
 				   &tape_discipline_3590);
 }
 
-static int
-tape_3590_offline(struct ccw_device *cdev)
-{
-	return tape_generic_offline(cdev->dev.driver_data);
-}
-
 static struct ccw_driver tape_3590_driver = {
 	.name = "tape_3590",
 	.owner = THIS_MODULE,
 	.ids = tape_3590_ids,
 	.probe = tape_generic_probe,
 	.remove = tape_generic_remove,
-	.set_offline = tape_3590_offline,
+	.set_offline = tape_generic_offline,
 	.set_online = tape_3590_online,
 };
 

drivers/s390/char/tape_core.c

@@ -387,8 +387,11 @@ tape_cleanup_device(struct tape_device *device)
  * Manual offline is only allowed while the drive is not in use.
  */
 int
-tape_generic_offline(struct tape_device *device)
+tape_generic_offline(struct ccw_device *cdev)
 {
+	struct tape_device *device;
+
+	device = cdev->dev.driver_data;
 	if (!device) {
 		return -ENODEV;
 	}