[PATCH RFC v4 01/16] drm: Add drm_minor_for_each

[Tejun Heo]

Hello,

On Wed, Sep 04, 2019 at 10:54:34AM +0200, Daniel Vetter wrote:
> Anyway, I don't think reusing the drm_minor registration makes sense,
> since we want to be on the drm_device, not on the minor. Which is a bit
> awkward for cgroups, which wants to identify devices using major.minor
> pairs. But I guess drm is the first subsystem where 1 device can be
> exposed through multiple minors ...
> 
> Tejun, any suggestions on this?

I'm not extremely attached to maj:min.  It's nice in that it'd be
consistent with blkcg but it already isn't the nicest of identifiers
for block devices.  If using maj:min is reasonably straight forward
for gpus even if not perfect, I'd prefer going with maj:min.
Otherwise, please feel free to use the ID best for GPUs - hopefully
something which is easy to understand, consistent with IDs used
elsewhere and easy to build tooling around.

Thanks.

-- 
tejun