// SPDX-License-Identifier: GPL-2.0
  #include <linux/kernel.h>
  #include <linux/ide.h>
  #include <linux/hdreg.h>
  #include <linux/mutex.h>
  
  #include "ide-disk.h"
  
  static DEFINE_MUTEX(ide_disk_ioctl_mutex);
  static const struct ide_ioctl_devset ide_disk_ioctl_settings[] = {
  { HDIO_GET_ADDRESS,	HDIO_SET_ADDRESS,   &ide_devset_address   },
  { HDIO_GET_MULTCOUNT,	HDIO_SET_MULTCOUNT, &ide_devset_multcount },
  { HDIO_GET_NOWERR,	HDIO_SET_NOWERR,    &ide_devset_nowerr	  },
  { HDIO_GET_WCACHE,	HDIO_SET_WCACHE,    &ide_devset_wcache	  },
  { HDIO_GET_ACOUSTIC,	HDIO_SET_ACOUSTIC,  &ide_devset_acoustic  },
  { 0 }
  };
  
  int ide_disk_ioctl(ide_drive_t *drive, struct block_device *bdev, fmode_t mode,
  		   unsigned int cmd, unsigned long arg)
  {
  	int err;
  
  	mutex_lock(&ide_disk_ioctl_mutex);
  	err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_disk_ioctl_settings);
  	if (err != -EOPNOTSUPP)
  		goto out;
  
  	err = generic_ide_ioctl(drive, bdev, cmd, arg);
  out:
  	mutex_unlock(&ide_disk_ioctl_mutex);
  	return err;
  }