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From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>,
	linux-media@vger.kernel.org, tomi.valkeinen@ideasonboard.com,
	jacopo.mondi@ideasonboard.com, bingbu.cao@intel.com,
	hongju.wang@intel.com, Alain Volmat <alain.volmat@foss.st.com>
Subject: Re: [PATCH v4 9/9] media: v4l: subdev: Warn on stream when accessing stream-unaware data
Date: Thu, 26 Oct 2023 17:20:11 +0300	[thread overview]
Message-ID: <20231026142011.GG26306@pendragon.ideasonboard.com> (raw)
In-Reply-To: <ZToYBPjwqKOIs68L@kekkonen.localdomain>

On Thu, Oct 26, 2023 at 07:40:52AM +0000, Sakari Ailus wrote:
> On Thu, Oct 26, 2023 at 09:36:41AM +0200, Hans Verkuil wrote:
> > On 26/10/2023 09:03, Sakari Ailus wrote:
> > > Warn if the stream is set ot a non-zero value on sub-device pad state
> > > access functions. A driver bug is required for triggering the warning.
> > 
> > More confusion here: why not merge this into patch 2?
> 
> I can squash it there.

I'm fine with that, but I wonder if we need a WARN_ON() in that case.
Won't driver developers notice the bug, given they'll get a NULL pointer
?

-- 
Regards,

Laurent Pinchart

  reply	other threads:[~2023-10-26 14:20 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-26  7:03 [PATCH v4 0/9] Unify sub-device state access functions Sakari Ailus
2023-10-26  7:03 ` [PATCH v4 1/9] media: v4l: subdev: Store the sub-device in the sub-device state Sakari Ailus
2023-10-26  7:03 ` [PATCH v4 2/9] media: v4l: subdev: Also return pads array information on stream functions Sakari Ailus
2023-10-26  7:11   ` Hans Verkuil
2023-10-26  7:39     ` Sakari Ailus
2023-10-26  7:03 ` [PATCH v4 3/9] media: v4l: subdev: Rename sub-device state information access functions Sakari Ailus
2023-10-26  7:26   ` Hans Verkuil
2023-10-26  8:25     ` Sakari Ailus
2023-10-26  9:51       ` Laurent Pinchart
2023-10-26 10:10         ` Sakari Ailus
2023-10-26 13:40           ` Laurent Pinchart
2023-10-26  7:03 ` [PATCH v4 4/9] media: v4l: subdev: v4l2_subdev_state_get_format always returns format now Sakari Ailus
2023-10-26  7:03 ` [PATCH v4 5/9] media: v4l: subdev: Make stream argument optional in state access functions Sakari Ailus
2023-10-26 13:49   ` Laurent Pinchart
2023-10-27  9:06     ` Sakari Ailus
2023-10-27  9:10       ` Laurent Pinchart
2023-10-27  9:12         ` Sakari Ailus
2023-10-27  9:14           ` Laurent Pinchart
2023-10-27  9:21             ` Sakari Ailus
2023-10-26  7:03 ` [PATCH v4 6/9] media: v4l: subdev: Switch to stream-aware state functions Sakari Ailus
2023-10-26  7:03 ` [PATCH v4 7/9] media: v4l: subdev: Remove stream-unaware sub-device state access Sakari Ailus
2023-10-26 13:54   ` Laurent Pinchart
2023-10-26  7:03 ` [PATCH v4 8/9] media: v4l: subdev: Return NULL from pad access functions on error Sakari Ailus
2023-10-26  7:35   ` Hans Verkuil
2023-10-26  7:43     ` Sakari Ailus
2023-10-26 13:55   ` Laurent Pinchart
2023-10-26  7:03 ` [PATCH v4 9/9] media: v4l: subdev: Warn on stream when accessing stream-unaware data Sakari Ailus
2023-10-26  7:36   ` Hans Verkuil
2023-10-26  7:40     ` Sakari Ailus
2023-10-26 14:20       ` Laurent Pinchart [this message]
2023-10-26 17:50         ` Sakari Ailus
2023-10-26 18:09           ` Laurent Pinchart

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