[PATCH 02/11] mtip32xx: return -ENOTTY for all unhanled ioctls

[Christoph Hellwig]

On Sat, Oct 31, 2020 at 08:58:52AM -0600, Jens Axboe wrote:
> On 10/31/20 2:58 AM, Christoph Hellwig wrote:
> > -ENOTTY is the convention for "driver does not support this ioctl".
> > Use it properly in mtip32xx instead of the bogys -EINVAL.
> 
> While that's certainly true, there is a risk in making a change like this
> years after the fact. Not that I expect there are any mtip32xx users
> left at this point, but...

-ENOTTY is what most drivers return.  That being said we can keep the
old behavior, so if you prepfer that I can respin to do that.