linux-kernel - Re: [PATCH 32/42] drm/ttm/ttm_tt: Demote kernel-doc header format abuses

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Date:   Tue, 17 Nov 2020 08:33:46 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Christian König <christian.koenig@....com>
Cc:     linux-kernel@...r.kernel.org, Huang Rui <ray.huang@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 32/42] drm/ttm/ttm_tt: Demote kernel-doc header format
 abuses

On Mon, 16 Nov 2020, Christian König wrote:

> Am 16.11.20 um 18:41 schrieb Lee Jones:
> > Fixes the following W=1 kernel build warning(s):
> > 
> >   drivers/gpu/drm/ttm/ttm_tt.c:45: warning: Function parameter or member 'bo' not described in 'ttm_tt_create'
> >   drivers/gpu/drm/ttm/ttm_tt.c:45: warning: Function parameter or member 'zero_alloc' not described in 'ttm_tt_create'
> >   drivers/gpu/drm/ttm/ttm_tt.c:83: warning: Function parameter or member 'ttm' not described in 'ttm_tt_alloc_page_directory'
> 
> Couldn't we rather describe the missing parameters? Shouldn't be much work.

My rule is; if a substantial attempt has been made to document
something, I'll patch it up.  If little or no attempt has been made,
then it gets demoted.

Please feel free to document and upgrade them once more.

Bear in mind however, there is a script that reports on all files
which utilise kernel-doc notation but do not have matching references
from the Documentation area.

See: scripts/find-unused-docs.sh

> > Cc: Christian Koenig <christian.koenig@....com>
> > Cc: Huang Rui <ray.huang@....com>
> > Cc: David Airlie <airlied@...ux.ie>
> > Cc: Daniel Vetter <daniel@...ll.ch>
> > Cc: dri-devel@...ts.freedesktop.org
> > Signed-off-by: Lee Jones <lee.jones@...aro.org>
> > ---
> >   drivers/gpu/drm/ttm/ttm_tt.c | 4 ++--
> >   1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
> > index cfd633c7e7643..da9eeffe0c6d7 100644
> > --- a/drivers/gpu/drm/ttm/ttm_tt.c
> > +++ b/drivers/gpu/drm/ttm/ttm_tt.c
> > @@ -38,7 +38,7 @@
> >   #include <drm/drm_cache.h>
> >   #include <drm/ttm/ttm_bo_driver.h>
> > -/**
> > +/*
> >    * Allocates a ttm structure for the given BO.
> >    */
> >   int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc)
> > @@ -73,7 +73,7 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc)
> >   	return 0;
> >   }
> > -/**
> > +/*
> >    * Allocates storage for pointers to the pages that back the ttm.
> >    */
> >   static int ttm_tt_alloc_page_directory(struct ttm_tt *ttm)
> 

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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