Re: [PATCH v3 0/4] drm: Use full allocated minor range for DRM

[Matthew Wilcox]

On Tue, Sep 06, 2022 at 04:01:13PM +0200, Michał Winiarski wrote:
> 64 DRM device nodes is not enough for everyone.
> Upgrade it to ~512K (which definitely is more than enough).
> 
> To allow testing userspace support for >64 devices, add additional DRM
> modparam (skip_legacy_minors) which causes DRM to skip allocating minors
> in 0-192 range.
> Additionally - one minor tweak around minor DRM IDR locking and IDR lockdep
> annotations.

The IDR is deprecated; rather than making all these changes around
the IDR, could you convert it to use the XArray instead?  I did it
once before, but those patches bounced off the submissions process.