LXR linux/drivers/ide/ide-disk

   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
   9static DEFINE_MUTEX(ide_disk_ioctl_mutex);
  10static 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
  19int 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);
  30out:
  31        mutex_unlock(&ide_disk_ioctl_mutex);
  32        return err;
  33}
  34