Re: [Intel-gfx] [PATCH v5 19/22] drm: restore CONFIG_DRM_USE_DYNAMIC_DEBUG un-BROKEN

From: jim . cromie
Date: Thu Aug 03 2023 - 16:21:44 EST


On Thu, Aug 3, 2023 at 1:14 AM kernel test robot <oliver.sang@xxxxxxxxx> wrote:
>
>
> hi, Jim Cromie,
>
> we send this report to you to consult that if there is any limitation to use
> this CONFIG_DRM_USE_DYNAMIC_DEBUG?
> attached config is a randconfig which has CONFIG_DRM_USE_DYNAMIC_DEBUG, the
> kernel built with it failed to boot in our tests, but we also tested with some
> other config then the issue cannot reproduce.
>

Theres no limitation I know of - particularly not CONFIG related

on an earlier version, I saw some odd transient / red-herring
linker-errors (collisions on __UNIQUE_ID constructs)
on s390, mips, older gcc (iirc - I could go find it in lkp-reports if
its meaningful)
that had me hacking at the fallback which uses __LINE__
But this seems different.