linux-kernel - Re: [PATCH v5 5/7] revocable: Add fops replacement

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Message-ID: <aTqCqab1pGB9LNZy@shikoro>
Date: Thu, 11 Dec 2025 17:36:57 +0900
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jason Gunthorpe <jgg@...dia.com>,
	Tzung-Bi Shih <tzungbi@...nel.org>,
	Benson Leung <bleung@...omium.org>,
	"Rafael J . Wysocki" <rafael@...nel.org>,
	Danilo Krummrich <dakr@...nel.org>,
	Jonathan Corbet <corbet@....net>, Shuah Khan <shuah@...nel.org>,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	chrome-platform@...ts.linux.dev, linux-kselftest@...r.kernel.org,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Simona Vetter <simona.vetter@...ll.ch>,
	Dan Williams <dan.j.williams@...el.com>
Subject: Re: [PATCH v5 5/7] revocable: Add fops replacement


> > Isn't there even prototype code from Dan Williams?
> > 
> > "[PATCH 1/3] cdev: Finish the cdev api with queued mode support"
> > 
> > https://lkml.org/lkml/2021/1/20/997
> 
> I mentioned that in my LPC talk in 2022 :-) I think we should merge that
> (or a rebased, possibly improved version of it). I've meant to try
> plumbing that series in V4L2 but couldn't find the time so far.

Yes, you mentioned it in 2022 but maybe not everyone in this thread is
right now aware of it ;) The patch above got changes requested. I talked
to Dan very briefly about it at Maintainers Summit 2023 and he was also
open (back then) to pick it up again.


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