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References: <20230125203743.564009-1-jim.cromie@gmail.com> <20230125203743.564009-15-jim.cromie@gmail.com>
In-Reply-To: <20230125203743.564009-15-jim.cromie@gmail.com>
From:   jim.cromie@gmail.com
Date:   Sat, 11 Feb 2023 12:24:07 -0700
Message-ID: <CAJfuBxw+g6w9_p2ym-hpCQNbr01crRMK_aYb4oV4j_BhoPwQjw@mail.gmail.com>
Subject: Re: [PATCH v3 14/19] drm_print: fix stale macro-name in comment
To:     linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        amd-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org,
        intel-gfx@lists.freedesktop.org
Cc:     jani.nikula@intel.com, ville.syrjala@linux.intel.com,
        daniel.vetter@ffwll.ch, seanpaul@chromium.org, robdclark@gmail.com
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Precedence: bulk

On Wed, Jan 25, 2023 at 1:38 PM Jim Cromie <jim.cromie@gmail.com> wrote:
>
> Cited commit uses stale macro name, fix this, and explain better.


So this patch is somehow drawing an 'F' flag from patchwork,
but theres no hint of what went wrong.
(I have seen a merge conflict, probably not that).

https://patchwork.freedesktop.org/series/113361/

https://patchwork.freedesktop.org/patch/520460/?series=113361&rev=1

Without this resolved, I cant see BAT results or the more exhaustive tests.


>
> When DRM_USE_DYNAMIC_DEBUG=y, DYNDBG_CLASSMAP_DEFINE() maps DRM_UT_*
> onto BITs in drm.debug.  This still uses enum drm_debug_category, but
> it is somewhat indirect, with the ordered set of DRM_UT_* enum-vals.
> This requires that the macro args: DRM_UT_* list must be kept in sync
> and in order.
>
> Fixes: f158936b60a7 ("drm: POC drm on dyndbg - use in core, 2 helpers, 3 drivers.")
> Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
> ---
> . emphasize ABI non-change despite enum val change - Jani Nikula
> . reorder to back of patchset to follow API name changes.
> ---
>  include/drm/drm_print.h | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
> index 6a27e8f26770..7695ba31b3a4 100644
> --- a/include/drm/drm_print.h
> +++ b/include/drm/drm_print.h
> @@ -276,7 +276,10 @@ static inline struct drm_printer drm_err_printer(const char *prefix)
>   *
>   */
>  enum drm_debug_category {
> -       /* These names must match those in DYNAMIC_DEBUG_CLASSBITS */
> +       /*
> +        * Keep DYNDBG_CLASSMAP_DEFINE args in sync with changes here,
> +        * the enum-values define BIT()s in drm.debug, so are ABI.
> +        */
>         /**
>          * @DRM_UT_CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c,
>          * drm_memory.c, ...
> --
> 2.39.1
>