From: Hans Verkuil <hansverk@cisco.com>
To: Boris Brezillon <boris.brezillon@free-electrons.com>,
Sakari Ailus <sakari.ailus@iki.fi>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>,
Hans Verkuil <hans.verkuil@cisco.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
linux-media@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-api@vger.kernel.org,
devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org,
Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Subject: Re: [PATCH 11/15] [media] Deprecate v4l2_mbus_pixelcode
Date: Wed, 05 Nov 2014 16:19:56 +0100 [thread overview]
Message-ID: <545A401C.8070908@cisco.com> (raw)
In-Reply-To: <20141105161538.7a1686d5@bbrezillon>
On 11/05/14 16:15, Boris Brezillon wrote:
> On Wed, 5 Nov 2014 17:08:15 +0200
> Sakari Ailus <sakari.ailus@iki.fi> wrote:
>
>> Hi Boris,
>>
>> On Tue, Nov 04, 2014 at 10:55:06AM +0100, Boris Brezillon wrote:
>>> The v4l2_mbus_pixelcode enum (or its values) should be replaced by the
>>> media_bus_format enum.
>>> Keep this enum in v4l2-mediabus.h and create a new header containing
>>> the v4l2_mbus_framefmt struct definition (which is not deprecated) so
>>> that we can add a #warning statement in v4l2-mediabus.h and hopefully
>>> encourage users to move to the new definitions.
>>>
>>> Replace inclusion of v4l2-mediabus.h with v4l2-mbus.h in all common headers
>>> and update the documentation Makefile to parse v4l2-mbus.h instead of
>>> v4l2-mediabus.h.
>>>
>>> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
>>> ---
>>> Documentation/DocBook/media/Makefile | 2 +-
>>> include/media/v4l2-mediabus.h | 2 +-
>>> include/uapi/linux/Kbuild | 1 +
>>> include/uapi/linux/v4l2-mbus.h | 35 +++++++++++++++++++++++++++++++++++
>>> include/uapi/linux/v4l2-mediabus.h | 26 ++++----------------------
>>
>> I would keep the original file name, even if the compatibility definitions
>> are there. I don't see any harm in having them around as well.
>>
>
> That's the part I was not sure about.
> The goal of this patch (and the following ones) is to deprecate
> v4l2_mbus_pixelcode enum and its values by adding a #warning when
> v4l2-mediabus.h file is included, thus encouraging people to use new
> definitions.
Since v4l2-mediabus.h contains struct v4l2_mbus_framefmt this header remains
a legal header, so you can't use #warning here in any case.
Regards,
Hans
>
> Do you see another solution to generate such warnings at compilation
> time ?
>
next prev parent reply other threads:[~2014-11-05 15:19 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-04 9:54 [PATCH 00/15] [media] Make mediabus format subsystem neutral Boris Brezillon
2014-11-04 9:54 ` [PATCH 01/15] [media] Move mediabus format definition to a more standard place Boris Brezillon
2014-11-04 10:20 ` Hans Verkuil
2014-11-04 10:22 ` Hans Verkuil
2014-11-04 10:45 ` Boris Brezillon
2014-11-04 11:09 ` Hans Verkuil
2014-11-05 15:00 ` Sakari Ailus
2014-11-05 15:32 ` Boris Brezillon
2014-11-04 9:54 ` [PATCH 02/15] [media] v4l: Update subdev-formats doc with new MEDIA_BUS_FMT values Boris Brezillon
2014-11-05 14:57 ` Sakari Ailus
2014-11-05 15:01 ` Boris Brezillon
2014-11-04 9:54 ` [PATCH 03/15] [media] Make use of the new media_bus_format definitions Boris Brezillon
[not found] ` <1415094910-15899-4-git-send-email-boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-11-05 15:19 ` Sakari Ailus
2014-11-04 9:54 ` [PATCH 04/15] [media] i2c: Make use of media_bus_format enum Boris Brezillon
2014-11-04 9:55 ` [PATCH 05/15] [media] pci: " Boris Brezillon
[not found] ` <1415094910-15899-1-git-send-email-boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-11-04 9:55 ` [PATCH 06/15] [media] platform: " Boris Brezillon
2014-11-04 9:55 ` [PATCH 10/15] [media] v4l: Forbid usage of V4L2_MBUS_FMT definitions inside the kernel Boris Brezillon
2014-11-04 9:55 ` [PATCH 15/15] staging: media: Replace v4l2-mediabus.h inclusion with v4l2-mbus.h Boris Brezillon
2014-11-04 9:55 ` [PATCH 07/15] [media] usb: Make use of media_bus_format enum Boris Brezillon
2014-11-04 9:55 ` [PATCH 08/15] staging: media: " Boris Brezillon
2014-11-04 9:55 ` [PATCH 09/15] gpu: ipu-v3: " Boris Brezillon
2014-11-04 9:55 ` [PATCH 11/15] [media] Deprecate v4l2_mbus_pixelcode Boris Brezillon
2014-11-05 15:08 ` Sakari Ailus
2014-11-05 15:15 ` Boris Brezillon
2014-11-05 15:19 ` Hans Verkuil [this message]
2014-11-05 15:30 ` Boris Brezillon
2014-11-05 15:34 ` Hans Verkuil
2014-11-05 15:22 ` Sakari Ailus
2014-11-04 9:55 ` [PATCH 12/15] [media] i2c: Replace v4l2-mediabus.h inclusion with v4l2-mbus.h Boris Brezillon
2014-11-04 9:55 ` [PATCH 13/15] gpu: ipu-v3: " Boris Brezillon
2014-11-04 9:55 ` [PATCH 14/15] [media] platform: " Boris Brezillon
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