diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2019-11-28 17:14:59 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2020-01-03 09:42:52 +0100 |
| commit | 1df23c6fe5b0654ece219985a0c32e40b100bd9a (patch) | |
| tree | e371a8ed355a6abbf2e630f9712dedeeba5aa144 /drivers/ide/ide-tape.c | |
| parent | 75c0b0e118b929cb8bad8ce1ab4c8be8a76c45e2 (diff) | |
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-tape.c')
| -rw-r--r-- | drivers/ide/ide-tape.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 3e7482695f77..6f26634b22bb 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -1945,11 +1945,22 @@ static int idetape_ioctl(struct block_device *bdev, fmode_t mode, return err; } +static int idetape_compat_ioctl(struct block_device *bdev, fmode_t mode, + unsigned int cmd, unsigned long arg) +{ + if (cmd == 0x0340 || cmd == 0x350) + arg = (unsigned long)compat_ptr(arg); + + return idetape_ioctl(bdev, mode, cmd, arg); +} + static const struct block_device_operations idetape_block_ops = { .owner = THIS_MODULE, .open = idetape_open, .release = idetape_release, .ioctl = idetape_ioctl, + .compat_ioctl = IS_ENABLED(CONFIG_COMPAT) ? + idetape_compat_ioctl : NULL, }; static int ide_tape_probe(ide_drive_t *drive) |