[PATCH 2/2] drm: make DRI1 drivers depend on BROKEN

[Emil Velikov]

On 25 August 2016 at 12:14, Daniel Vetter <daniel at ffwll.ch> wrote:
> On Thu, Aug 04, 2016 at 09:15:07AM +0100, Chris Wilson wrote:
>> On Thu, Aug 04, 2016 at 10:06:57AM +0200, David Herrmann wrote:
>> > The legacy DRI1 drivers expose highly broken interfaces to user-space. No
>> > modern system should enable them, or you will effectively allow user-space
>> > to circumvent most of your kernel security measures. The DRI1 kernel APIs
>> > are simply broken.
>> >
>> > User-space can always use vesafb/efifb/simplefb and friends to get working
>> > graphics.
>> >
>> > Lets hide the old drivers behind CONFIG_BROKEN. In case they turn out to
>> > be still used (really?), we can easily revert this and figure out a way to
>> > move them out of sight (e.g., moving all DRI1 drivers to
>> > drivers/gpu/dri1/).
>> >
>> > Signed-off-by: David Herrmann <dh.herrmann at gmail.com>
>>
>> Acked-by: Chris Wilson <chris at chris-wilson.co.uk>
>>
>> I'd rather have a couple of distro devs check if they are still using
>> any of these, and would value their a-b/r-b.
>
> Mesa stopped shipping dri1 drivers years ago, and neither Fedora and
> Debian here have that old version packaged (it should keep working since
> the dri loader is an ABI). I don't think anyone needs this, and if I'm
> wrong we'll hear about it ;-)
>
Archlinux (which seems to be picking more users) is still shipping
dri1 drivers - both mesa and X. No idea for many actually use those
and/or for how much longer the packages will be around.

IIRC the maintainer, Connor, used to hack on the xf86-video-r128 with
plans(?) on getting things KMS aware. Not sure if that was by
extending the existing radeon kernel, ddx, mesa driver(s) or
otherwise.
Connor, can you shed some light ?

-Emil