drivers/ide/ide-disk_ioctl.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/kernel.h>
   3 #include <linux/ide.h>
   4 #include <linux/hdreg.h>
   5 #include <linux/mutex.h>
   6
   7 #include "ide-disk.h"
   8
   9 static DEFINE_MUTEX(ide_disk_ioctl_mutex);
  10 static const struct ide_ioctl_devset ide_disk_ioctl_settings[] = {
  11 { HDIO_GET_ADDRESS,     HDIO_SET_ADDRESS,   &ide_devset_address   },
  12 { HDIO_GET_MULTCOUNT,   HDIO_SET_MULTCOUNT, &ide_devset_multcount },
  13 { HDIO_GET_NOWERR,      HDIO_SET_NOWERR,    &ide_devset_nowerr    },
  14 { HDIO_GET_WCACHE,      HDIO_SET_WCACHE,    &ide_devset_wcache    },
  15 { HDIO_GET_ACOUSTIC,    HDIO_SET_ACOUSTIC,  &ide_devset_acoustic  },
  16 { 0 }
  17 };
  18
  19 int ide_disk_ioctl(ide_drive_t *drive, struct block_device *bdev, fmode_t mode,
  20                    unsigned int cmd, unsigned long arg)
  21 {
  22         int err;
  23
  24         mutex_lock(&ide_disk_ioctl_mutex);
  25         err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_disk_ioctl_settings);
  26         if (err != -EOPNOTSUPP)
  27                 goto out;
  28
  29         err = generic_ide_ioctl(drive, bdev, cmd, arg);
  30 out:
  31         mutex_unlock(&ide_disk_ioctl_mutex);
  32         return err;
  33 }