Re: [PATCH] drm: Fix kerneldoc warns in connector-related docs

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On Wed, Aug 07, 2019 at 07:30:23PM +0200, Sam Ravnborg wrote:
> Hi Sean.
> 
> On Wed, Aug 07, 2019 at 12:28:04PM -0400, Sean Paul wrote:
> > From: Sean Paul <seanpaul@xxxxxxxxxxxx>
> > 
> > Fixes the following warnings:
> > ../drivers/gpu/drm/drm_connector.c:989: WARNING: Unexpected indentation.
> > ../drivers/gpu/drm/drm_connector.c:993: WARNING: Unexpected indentation.
> > ../include/drm/drm_connector.h:544: WARNING: Inline interpreted text or phrase reference start-string without end-string.
> > ../include/drm/drm_connector.h:544: WARNING: Inline interpreted text or phrase reference start-string without end-string.
> 
> Thanks, 4 less warnings..
> > 
> > Fixes: 1b27fbdde1df ("drm: Add drm_atomic_get_(old|new)_connector_for_encoder() helpers")
> > Fixes: bb5a45d40d50 ("drm/hdcp: update content protection property with uevent")
> > Cc: Ramalingam C <ramalingam.c@xxxxxxxxx>
> > Cc: Daniel Vetter <daniel@xxxxxxxx>
> > Cc: Pekka Paalanen <pekka.paalanen@xxxxxxxxxxxxx>
> > Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
> > Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> > Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
> > Cc: Sean Paul <seanpaul@xxxxxxxxxxxx>
> > Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> > Cc: Maxime Ripard <maxime.ripard@xxxxxxxxxxx>
> > Cc: Sean Paul <sean@xxxxxxxxxx>
> > Cc: David Airlie <airlied@xxxxxxxx>
> > Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> > Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
> > ---
> >  drivers/gpu/drm/drm_connector.c | 10 ++++++----
> >  include/drm/drm_connector.h     |  4 ++--
> >  2 files changed, 8 insertions(+), 6 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> > index 354798bad576..4c766624b20d 100644
> > --- a/drivers/gpu/drm/drm_connector.c
> > +++ b/drivers/gpu/drm/drm_connector.c
> > @@ -986,12 +986,14 @@ static const struct drm_prop_enum_list hdmi_colorspaces[] = {
> >   *	- Kernel sends uevent with the connector id and property id through
> >   *	  @drm_hdcp_update_content_protection, upon below kernel triggered
> >   *	  scenarios:
> > - *		DESIRED -> ENABLED	(authentication success)
> > - *		ENABLED -> DESIRED	(termination of authentication)
> > + *
> > + *		- DESIRED -> ENABLED (authentication success)
> > + *		- ENABLED -> DESIRED (termination of authentication)
> >   *	- Please note no uevents for userspace triggered property state changes,
> >   *	  which can't fail such as
> > - *		DESIRED/ENABLED -> UNDESIRED
> > - *		UNDESIRED -> DESIRED
> > + *
> > + *		- DESIRED/ENABLED -> UNDESIRED
> > + *		- UNDESIRED -> DESIRED
> >   *	- Userspace is responsible for polling the property or listen to uevents
> >   *	  to determine when the value transitions from ENABLED to DESIRED.
> >   *	  This signifies the link is no longer protected and userspace should
> > diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> > index 0b9997e27689..e391f9c05f98 100644
> > --- a/include/drm/drm_connector.h
> > +++ b/include/drm/drm_connector.h
> > @@ -543,8 +543,8 @@ struct drm_connector_state {
> >  	 *
> >  	 * This is also used in the atomic helpers to map encoders to their
> >  	 * current and previous connectors, see
> > -	 * &drm_atomic_get_old_connector_for_encoder() and
> > -	 * &drm_atomic_get_new_connector_for_encoder().
> > +	 * &drm_atomic_get_old_connector_for_encoder and
> > +	 * &drm_atomic_get_new_connector_for_encoder.
> Please fix this to use () for the functions and drop the "&".
> This is what we use in drm kernel-doc for functions.
> See for example function references in doc of writeback_job in the same file.

Doing this won't get a hyperlink in the docs. It seems like these hooks aren't
recognized as functions by sphinx (not sure didn't look into it too deeply). The
other "_funcs.*" hooks are also handled with '&' (there are lots of examples in
drm_connector.h).

I think preserving the hyperlinks probably outweighs the missing (), thoughts?

Sean

> 
> With this fixed:
> Reviewed-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> 
> >  	 *
> >  	 * NOTE: Atomic drivers must fill this out (either themselves or through
> >  	 * helpers), for otherwise the GETCONNECTOR and GETENCODER IOCTLs will
> > -- 
> > Sean Paul, Software Engineer, Google / Chromium OS

-- 
Sean Paul, Software Engineer, Google / Chromium OS
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