linux-kernel - Re: [PATCH v2] drm/vram-helper: fix kernel-doc warnings

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Date: Tue, 9 Jan 2024 07:23:48 -0800
From: Randy Dunlap <rdunlap@...radead.org>
To: Daniel Vetter <daniel@...ll.ch>
Cc: Thomas Zimmermann <tzimmermann@...e.de>, linux-kernel@...r.kernel.org,
 David Airlie <airlied@...il.com>, dri-devel@...ts.freedesktop.org,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, linux-doc@...r.kernel.org,
 Jonathan Corbet <corbet@....net>
Subject: Re: [PATCH v2] drm/vram-helper: fix kernel-doc warnings



On 1/9/24 05:42, Daniel Vetter wrote:
> On Tue, 9 Jan 2024 at 13:59, Daniel Vetter <daniel@...ll.ch> wrote:
>>
>> On Mon, Jan 08, 2024 at 01:10:12PM -0800, Randy Dunlap wrote:
>>> Hi Thomas,
>>>
>>> On 1/8/24 00:57, Thomas Zimmermann wrote:
>>>> Hi,
>>>>
>>>> thanks for the fix.
>>>>
>>>> Am 06.01.24 um 04:29 schrieb Randy Dunlap:
>>>>> Remove the @funcs entry from struct drm_vram_mm to quieten the kernel-doc
>>>>> warning.
>>>>>
>>>>> Use the "define" kernel-doc keyword and an '\' line continuation
>>>>> to fix another kernel-doc warning.
>>>>>
>>>>> drm_gem_vram_helper.h:129: warning: missing initial short description on line:
>>>>>   * DRM_GEM_VRAM_PLANE_HELPER_FUNCS -
>>>>> drm_gem_vram_helper.h:185: warning: Excess struct member 'funcs' description in 'drm_vram_mm'
>>>>>
>>>>> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
>>>>> Cc: David Airlie <airlied@...il.com>
>>>>> Cc: Daniel Vetter <daniel@...ll.ch>
>>>>> Cc: dri-devel@...ts.freedesktop.org
>>>>> Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
>>>>> Cc: Maxime Ripard <mripard@...nel.org>
>>>>> Cc: Thomas Zimmermann <tzimmermann@...e.de>
>>>>> ---
>>>>> v2: Add commit description
>>>>>
>>>>> base-commit: 610a9b8f49fbcf1100716370d3b5f6f884a2835a
>>>>>
>>>>>   include/drm/drm_gem_vram_helper.h |    3 +--
>>>>>   1 file changed, 1 insertion(+), 2 deletions(-)
>>>>>
>>>>> diff -- a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
>>>>> --- a/include/drm/drm_gem_vram_helper.h
>>>>> +++ b/include/drm/drm_gem_vram_helper.h
>>>>> @@ -126,7 +126,7 @@ drm_gem_vram_plane_helper_cleanup_fb(str
>>>>>                        struct drm_plane_state *old_state);
>>>>>     /**
>>>>> - * DRM_GEM_VRAM_PLANE_HELPER_FUNCS -
>>>>> + * define DRM_GEM_VRAM_PLANE_HELPER_FUNCS - \
>>>>
>>>> Did something change wrt. doc syntax? I think this used to work without warnings. About this 'define': we don't use is in another docs. Can we leave it out here or is this the new syntax?
>>>>
>>>
>>> There are no doc syntax changes that I know of. This is not
>>> new syntax. It has been around since 2014:
>>>   cbb4d3e6510b ("scripts/kernel-doc: handle object-like macros")
>>
>> I had no idea this exists, thanks a lot for this TIL :-)
>>
>> I guess the issue here is that this exists, yay, but it's not documented
>> with the other here:
>>
>> https://dri.freedesktop.org/docs/drm/doc-guide/kernel-doc.html#structure-union-and-enumeration-documentation
>>
>> I guess a patch to kernel-doc.rst would be great. Adding some kernel-doc
>> folks.
> 
> Ok I went ahead and typed that patch (just we don't waste effort),
> just waiting for the sphinx build to finish to make sure it looks nice
> before I send out the patch.
> -Sima

I sent one a few days ago:

https://lore.kernel.org/lkml/20240107012400.32587-1-rdunlap@infradead.org/

-- 
#Randy