From: "Danilo Krummrich" <dakr@kernel.org>
To: "Johan Hovold" <johan@kernel.org>
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Rafael J . Wysocki" <rafael@kernel.org>,
"Tzung-Bi Shih" <tzungbi@kernel.org>,
"Bartosz Golaszewski" <bartosz.golaszewski@oss.qualcomm.com>,
"Linus Walleij" <linusw@kernel.org>,
"Jonathan Corbet" <corbet@lwn.net>,
"Shuah Khan" <shuah@kernel.org>,
"Laurent Pinchart" <laurent.pinchart@ideasonboard.com>,
"Wolfram Sang" <wsa+renesas@sang-engineering.com>,
"Simona Vetter" <simona.vetter@ffwll.ch>,
"Dan Williams" <dan.j.williams@intel.com>,
"Jason Gunthorpe" <jgg@nvidia.com>, <linux-doc@vger.kernel.org>,
<linux-kselftest@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/3] Revert "revocable: Revocable resource management"
Date: Sat, 24 Jan 2026 20:08:28 +0100 [thread overview]
Message-ID: <DFX20SA67PF2.VONCFNDOZOZT@kernel.org> (raw)
In-Reply-To: <20260124170535.11756-1-johan@kernel.org>
On Sat Jan 24, 2026 at 6:05 PM CET, Johan Hovold wrote:
> this does not look like the right interface for the chardev unplug issue.
I think it depends, we should do everything to prevent having the issue in the
first place, e.g. ensure that we synchronize the unplug properly on device
driver unbind.
Sometimes, however, this isn't possible; this is where a revocable mechanism can
come in handy to prevent UAF of device resources -- DRM is a good example for
this.
But to be fair, I also want to point out that there is a quite significant
difference regarding the usefulness of the revocable concept in C compared to in
Rust due to language capabilities.
next prev parent reply other threads:[~2026-01-24 19:08 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-24 17:05 [PATCH 0/3] Revert "revocable: Revocable resource management" Johan Hovold
2026-01-24 17:05 ` [PATCH 1/3] Revert "selftests: revocable: Add kselftest cases" Johan Hovold
2026-01-24 17:05 ` [PATCH 2/3] Revert "revocable: Add Kunit test cases" Johan Hovold
2026-01-24 17:05 ` [PATCH 3/3] Revert "revocable: Revocable resource management" Johan Hovold
2026-01-24 17:37 ` Johan Hovold
2026-01-24 17:46 ` Danilo Krummrich
2026-01-26 13:20 ` Johan Hovold
2026-01-27 15:57 ` Tzung-Bi Shih
2026-01-24 18:42 ` [PATCH 0/3] " Laurent Pinchart
2026-01-24 19:08 ` Danilo Krummrich [this message]
2026-01-25 12:47 ` Greg Kroah-Hartman
2026-01-25 13:22 ` Laurent Pinchart
2026-01-25 14:07 ` Danilo Krummrich
2026-01-29 1:09 ` Laurent Pinchart
2026-01-25 13:24 ` Laurent Pinchart
2026-01-25 17:53 ` Danilo Krummrich
2026-01-26 0:07 ` Jason Gunthorpe
2026-01-26 16:08 ` Danilo Krummrich
2026-01-26 17:07 ` Jason Gunthorpe
2026-01-26 22:36 ` Danilo Krummrich
2026-01-28 23:40 ` Laurent Pinchart
2026-01-26 13:50 ` Johan Hovold
2026-01-27 21:18 ` Bartosz Golaszewski
2026-01-27 23:52 ` Jason Gunthorpe
2026-01-28 9:40 ` Bartosz Golaszewski
2026-01-28 10:01 ` Wolfram Sang
2026-01-28 15:05 ` Jason Gunthorpe
2026-01-28 15:20 ` Bartosz Golaszewski
2026-01-28 16:01 ` Jason Gunthorpe
2026-01-30 11:27 ` Bartosz Golaszewski
2026-01-28 16:58 ` Wolfram Sang
2026-01-29 1:08 ` Laurent Pinchart
2026-01-29 1:23 ` Jason Gunthorpe
2026-01-29 3:42 ` dan.j.williams
2026-01-29 9:56 ` Danilo Krummrich
2026-01-29 10:43 ` Laurent Pinchart
2026-01-30 0:36 ` dan.j.williams
2026-01-29 10:38 ` Laurent Pinchart
2026-01-29 13:34 ` Jason Gunthorpe
2026-01-29 14:52 ` Laurent Pinchart
2026-01-29 22:29 ` Danilo Krummrich
2026-01-30 9:10 ` Laurent Pinchart
2026-02-03 9:10 ` Maxime Ripard
2026-02-03 13:59 ` Laurent Pinchart
2026-01-28 15:48 ` Johan Hovold
2026-01-29 9:11 ` Bartosz Golaszewski
2026-01-29 10:56 ` Laurent Pinchart
2026-01-29 13:50 ` Bartosz Golaszewski
2026-01-29 14:28 ` Jason Gunthorpe
2026-01-29 14:45 ` Laurent Pinchart
2026-01-29 14:49 ` Laurent Pinchart
2026-01-29 22:00 ` Danilo Krummrich
2026-01-30 11:19 ` Bartosz Golaszewski
2026-01-29 13:27 ` Linus Walleij
2026-02-03 12:15 ` Johan Hovold
2026-02-03 12:26 ` Greg Kroah-Hartman
2026-02-03 12:30 ` [PATCH] driver core: disable revocable code from build Greg Kroah-Hartman
2026-02-03 13:20 ` Danilo Krummrich
2026-02-04 2:14 ` Tzung-Bi Shih
2026-02-04 5:28 ` [PATCH] selftests: Disable " Tzung-Bi Shih
2026-02-04 8:21 ` Greg Kroah-Hartman
2026-02-03 13:57 ` [PATCH 0/3] Revert "revocable: Revocable resource management" Laurent Pinchart
2026-02-03 15:44 ` Greg Kroah-Hartman
2026-02-04 14:36 ` Johan Hovold
2026-01-27 15:57 ` Tzung-Bi Shih
2026-01-28 14:23 ` Johan Hovold
2026-01-28 23:28 ` Laurent Pinchart
2026-01-29 15:01 ` Tzung-Bi Shih
2026-01-30 9:12 ` Laurent Pinchart
2026-01-30 17:41 ` Danilo Krummrich
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