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From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	 Genes Lists <lists@sapience.com>,
	linux-kernel@vger.kernel.org, mchehab@kernel.org,
	 hverkuil-cisco@xs4all.nl, laurent.pinchart@ideasonboard.com,
	 wentong.wu@intel.com, linux-media@vger.kernel.org,
	linux-acpi@vger.kernel.org,
	 "regressions@lists.linux.dev" <regressions@lists.linux.dev>
Subject: Re: [PATCH 1/1] ACPI: scan: Ignore Dell XPS 9320 camera graph port nodes
Date: Thu, 13 Jun 2024 11:50:48 +0200	[thread overview]
Message-ID: <CAJZ5v0jN3CXM9vWQniu1Q2t1NvG9n5KoG0VGHnMgdPU2iHpBvw@mail.gmail.com> (raw)
In-Reply-To: <ZmoCUZxlSHy_PclO@kekkonen.localdomain>

Hi Sakari,

On Wed, Jun 12, 2024 at 10:17 PM Sakari Ailus
<sakari.ailus@linux.intel.com> wrote:
>
> Hi Hans,
>
> On Wed, Jun 12, 2024 at 04:30:30PM +0200, Hans de Goede wrote:
> > Sakari I know you have been pushing for MIPI camera descriptions under
> > ACPI to move to a standardized format and I can see how that is a good
> > thing, but atm it seems to mainly cause things to break and before
> > the ACPI MIPI DISCO support landed in 6.8 we did not have these issues,
> > since the information used by the ipu-bridge code does seem to be correct.
>
> Support for capturing from cameras on IPU6 systems (IPU6 ISYS driver and
> IPU bridge changes) was upstreamed for 6.10, with some drivers such as IVSC
> (four of them) and IVSC related IPU bridge changes merged for 6.8 already.
>
> We can't guarantee the continued functioning of downstream drivers in cases
> where new upstream drivers for the same devices get merged to the kernel,
> often with different APIs. You know that as well as I do.
>
> In other words, there was no regression with respect to the upstream
> kernel.

Users' opinions on this may differ I suppose.

If a user sees a new kernel warning on boot, they will easily count it
as a regression, and with panic_on_warn this becomes a full-fledged
kernel crash.

This is bad, even though it may be coming from a new driver strictly speaking.

  reply	other threads:[~2024-06-13  9:51 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-27 16:34 6.10-rc1 : crash in mei_csi_probe Genes Lists
2024-05-27 19:57 ` Sakari Ailus
2024-05-27 20:58   ` Genes Lists
2024-05-28  8:44     ` [PATCH 1/1] ACPI: scan: Ignore Dell XPS 9320 camera graph port nodes Sakari Ailus
2024-05-28 17:09       ` Hans de Goede
2024-06-06 18:12         ` Hans de Goede
2024-06-07  7:55           ` Rafael J. Wysocki
2024-06-07  9:24             ` Sakari Ailus
2024-06-12 10:08           ` Hans de Goede
2024-06-12 10:25             ` Rafael J. Wysocki
2024-06-12 12:10             ` Sakari Ailus
2024-06-12 12:21               ` Rafael J. Wysocki
2024-06-12 12:26                 ` Sakari Ailus
2024-06-12 12:32                   ` Rafael J. Wysocki
2024-06-12 12:47                     ` Sakari Ailus
2024-06-12 13:06                       ` Rafael J. Wysocki
2024-06-12 14:30                         ` Hans de Goede
2024-06-12 14:39                           ` Laurent Pinchart
2024-06-12 18:24                             ` Sakari Ailus
2024-06-12 19:07                             ` Rafael J. Wysocki
2024-06-12 20:08                               ` Laurent Pinchart
2024-06-12 15:26                           ` Rafael J. Wysocki
2024-06-12 18:33                             ` Sakari Ailus
2024-06-12 18:41                               ` Rafael J. Wysocki
2024-06-12 19:06                                 ` Sakari Ailus
2024-06-12 19:12                                   ` Rafael J. Wysocki
2024-06-12 19:17                                     ` Sakari Ailus
2024-06-12 19:32                                       ` Rafael J. Wysocki
2024-06-12 20:00                                         ` Sakari Ailus
2024-06-12 20:17                           ` Sakari Ailus
2024-06-13  9:50                             ` Rafael J. Wysocki [this message]
2024-06-12 18:21                         ` Sakari Ailus
2024-06-12 18:29                           ` Rafael J. Wysocki
2024-06-12 18:40                             ` Sakari Ailus
2024-06-12 18:50                               ` Rafael J. Wysocki
2024-06-12 19:11                                 ` Sakari Ailus
2024-06-12 19:26                                   ` Rafael J. Wysocki
2024-06-12 20:00                                 ` Laurent Pinchart
2024-06-12 20:31                                   ` Rafael J. Wysocki
2024-06-12 20:41                                     ` Laurent Pinchart
2024-06-13 12:37                                       ` Rafael J. Wysocki
2024-06-12 20:01                               ` Laurent Pinchart
2024-05-30  0:35       ` Wu, Wentong
2024-06-06 15:39     ` 6.10-rc1 : crash in mei_csi_probe Genes Lists
2024-06-06 15:50       ` Sakari Ailus
2024-06-06 16:17         ` Genes Lists
2024-06-06 17:07         ` Linux regression tracking (Thorsten Leemhuis)
2024-06-07  7:57           ` Rafael J. Wysocki

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