cdrom: remove the unused bdev argument to cdrom_open

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Phillip Potter <phil@philpotter.co.uk>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-3-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>

drivers/cdrom/cdrom.c

@@ -1155,8 +1155,7 @@ int open_for_data(struct cdrom_device_info *cdi)
  * is in their own interest: device control becomes a lot easier
  * this way.
  */
-int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev,
-	       fmode_t mode)
+int cdrom_open(struct cdrom_device_info *cdi, fmode_t mode)
 {
 	int ret;
 

drivers/cdrom/gdrom.c

@@ -481,7 +481,7 @@ static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
 	bdev_check_media_change(bdev);
 
 	mutex_lock(&gdrom_mutex);
-	ret = cdrom_open(gd.cd_info, bdev, mode);
+	ret = cdrom_open(gd.cd_info, mode);
 	mutex_unlock(&gdrom_mutex);
 	return ret;
 }

drivers/scsi/sr.c

@@ -498,7 +498,7 @@ static int sr_block_open(struct block_device *bdev, fmode_t mode)
 		sr_revalidate_disk(cd);
 
 	mutex_lock(&cd->lock);
-	ret = cdrom_open(&cd->cdi, bdev, mode);
+	ret = cdrom_open(&cd->cdi, mode);
 	mutex_unlock(&cd->lock);
 
 	scsi_autopm_put_device(sdev);

include/linux/cdrom.h

@@ -101,8 +101,7 @@ int cdrom_read_tocentry(struct cdrom_device_info *cdi,
 		struct cdrom_tocentry *entry);
 
 /* the general block_device operations structure: */
-extern int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev,
-			fmode_t mode);
+int cdrom_open(struct cdrom_device_info *cdi, fmode_t mode);
 extern void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode);
 extern int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
 		       fmode_t mode, unsigned int cmd, unsigned long arg);