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| author | Arnd Bergmann <arnd@arndb.de> | 2019-11-28 19:14:59 +0300 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2020-01-03 11:42:52 +0300 |
| commit | 1df23c6fe5b0654ece219985a0c32e40b100bd9a (patch) | |
| tree | e371a8ed355a6abbf2e630f9712dedeeba5aa144 /drivers/ide/ide-cd.c | |
| parent | 75c0b0e118b929cb8bad8ce1ab4c8be8a76c45e2 (diff) | |
| download | linux-1df23c6fe5b0654ece219985a0c32e40b100bd9a.tar.xz | |
compat_ioctl: move HDIO ioctl handling into drivers/ide
Most of the HDIO ioctls are only used by the obsolete drivers/ide
subsystem, these can be handled by changing ide_cmd_ioctl() to be aware
of compat mode and doing the correct transformations in place and using
it as both native and compat handlers for all drivers.
The SCSI drivers implementing the same commands are already doing
this in the drivers, so the compat_blkdev_driver_ioctl() function
is no longer needed now.
The BLKSECTSET and HDIO_GETGEO_BIG ioctls are not implemented
in any driver any more and no longer need any conversion.
Reviewed-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/ide/ide-cd.c')
| -rw-r--r-- | drivers/ide/ide-cd.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index e09b949a7c46..dcf8b51b47fd 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1711,7 +1711,6 @@ static int idecd_ioctl(struct block_device *bdev, fmode_t mode, return ret; } -#ifdef CONFIG_COMPAT static int idecd_locked_compat_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg) { @@ -1728,8 +1727,12 @@ static int idecd_locked_compat_ioctl(struct block_device *bdev, fmode_t mode, break; } - return cdrom_ioctl(&info->devinfo, bdev, mode, cmd, - (unsigned long)argp); + err = generic_ide_ioctl(info->drive, bdev, cmd, arg); + if (err == -EINVAL) + err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, + (unsigned long)argp); + + return err; } static int idecd_compat_ioctl(struct block_device *bdev, fmode_t mode, @@ -1743,7 +1746,6 @@ static int idecd_compat_ioctl(struct block_device *bdev, fmode_t mode, return ret; } -#endif static unsigned int idecd_check_events(struct gendisk *disk, unsigned int clearing) @@ -1766,9 +1768,8 @@ static const struct block_device_operations idecd_ops = { .open = idecd_open, .release = idecd_release, .ioctl = idecd_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = idecd_compat_ioctl, -#endif + .compat_ioctl = IS_ENABLED(CONFIG_COMPAT) ? + idecd_compat_ioctl : NULL, .check_events = idecd_check_events, .revalidate_disk = idecd_revalidate_disk }; |