linux-kernel - Re: [PATCH 0/3] v4l2-compat-ioctl32.c: better detect pointer controls

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Message-ID: <20170810205202.7fa1179c@vento.lan>
Date:   Thu, 10 Aug 2017 20:52:02 -0300
From:   Mauro Carvalho Chehab <mchehab@...pensource.com>
To:     Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...radead.org>,
        linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
        Hans Verkuil <hverkuil@...all.nl>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Kieran Bingham <kieran@...uared.org.uk>,
        Tomasz Figa <tfiga@...omium.org>
Subject: Re: [PATCH 0/3] v4l2-compat-ioctl32.c: better detect pointer
 controls

Em Thu, 10 Aug 2017 20:45:10 -0300
Mauro Carvalho Chehab <mchehab@...pensource.com> escreveu:

> In the past, only string controls were pointers. That changed when compounded
> types got added, but the compat32 code was not updated.
> 
> We could just add those controls there, but maintaining it is flaw, as we
> often forget about the compat code. So, instead, rely on the control type,
> as this is always updated when new controls are added.
> 
> As both v4l2-ctrl and compat32 code are at videodev.ko module, we can
> move the ctrl_is_pointer() helper function to v4l2-ctrl.c.
> 
> Mauro Carvalho Chehab (3):
>   media: v4l2-ctrls.h: better document the arguments for v4l2_ctrl_fill
>   media: v4l2-ctrls: prepare the function to be used by compat32 code
>   media: compat32: reimplement ctrl_is_pointer()
> 
>  drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 18 +---------
>  drivers/media/v4l2-core/v4l2-ctrls.c          | 49 +++++++++++++++++++++++++--
>  include/media/v4l2-ctrls.h                    | 28 ++++++++++-----
>  3 files changed, 67 insertions(+), 28 deletions(-)
> 

Sorry, sent this series to the wrong mailing list. Will resend
to the right one.


Thanks,
Mauro