Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <20230801170255.163237-21-jim.cromie@gmail.com> <202308031432.fcb4197-oliver.sang@intel.com>
In-Reply-To: <202308031432.fcb4197-oliver.sang@intel.com>
From:   jim.cromie@gmail.com
Date:   Thu, 3 Aug 2023 14:21:13 -0600
Message-ID: <CAJfuBxzq_5skGRkcdK9kJBE_qL8X_waq88XsUO-FHyVQkQUb4w@mail.gmail.com>
Subject: Re: [Intel-gfx] [PATCH v5 19/22] drm: restore CONFIG_DRM_USE_DYNAMIC_DEBUG
 un-BROKEN
To:     kernel test robot <oliver.sang@intel.com>
Cc:     oe-lkp@lists.linux.dev, lkp@intel.com,
        dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch,
        daniel@ffwll.ch, jbaron@akamai.com, gregkh@linuxfoundation.org,
        linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
        intel-gvt-dev@lists.freedesktop.org,
        intel-gfx@lists.freedesktop.org, jani.nikula@intel.com,
        linux@rasmusvillemoes.dk, seanpaul@chromium.org, joe@perches.com
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

On Thu, Aug 3, 2023 at 1:14=E2=80=AFAM kernel test robot <oliver.sang@intel=
.com> 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, t=
he
> 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.