On Friday 11 January 2008, Borislav Petkov wrote:
> By passing idefloppy_floppy_t *floppy to the factored out functions, we get
> rid of (almost) all local vars so stack usage should be at minimum here. Also,
> we merge idefloppy_begin_format() into idefloppy_format_start() since it is
> its
> only user.
>
> Also,
> - remove unneeded scsi ioctl chunk
They are _needed_, despite the name these ioctls are _not_ limited
to SCSI subsystem.
[...]
> + int prevent = (arg) ? 1 : 0;
parentheses are unnecessary
[...]
> +static int idefloppy_format_unit(idefloppy_floppy_t *floppy, unsigned long
> arg)
__user tag was dropped from 'arg'
(I bet that this would make sparse checking unhappy)
> +{
> + int blocks, length, flags, err = 0;
> + int __user *argp = (int __user *)arg;
wouldn't be needed if the 'arg' was of 'int __user' type and the casting was
done in the caller function
[...]
> + if (idefloppy_queue_pc_tail(floppy->drive, &pc)) {
> + err = -EIO;
> + goto out;
'goto out' is unnecessary
> + }
> +
> +out:
> + if (err)
> + clear_bit(IDEFLOPPY_FORMAT_IN_PROGRESS, &floppy->flags);
> + return err;
> +}
[...]
> - /*
> - * skip SCSI_IOCTL_SEND_COMMAND (deprecated)
> - * and CDROM_SEND_PACKET (legacy) ioctls
> - */
> - if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND)
> - err = scsi_cmd_ioctl(file, bdev->bd_disk->queue,
> - bdev->bd_disk, cmd, argp);
> - else
> - err = -ENOTTY;
> -
> - if (err == -ENOTTY)
> - err = generic_ide_ioctl(drive, file, bdev, cmd, arg);
> -
> - return err;
> + return generic_ide_ioctl(drive, file, bdev, cmd, arg);
this whole chunk needs to be reverted
Please recast/resubmit.
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