linux-kernel - Re: Regression: v4l/bttv vbi vs iommu

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Message-ID: <8a667bd9-6a2d-301c-ee11-23e9466b193a@xs4all.nl>
Date:   Sun, 13 Aug 2023 15:44:17 +0200
From:   Hans Verkuil <hverkuil@...all.nl>
To:     "Dr. David Alan Gilbert" <dave@...blig.org>
Cc:     Christoph Hellwig <hch@....de>, iommu@...ts.linux.dev,
        mchehab@...nel.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: Regression: v4l/bttv vbi vs iommu

On 13/08/2023 15:14, Dr. David Alan Gilbert wrote:
> * Hans Verkuil (hverkuil@...all.nl) wrote:
>> On 03/02/2023 07:35, Christoph Hellwig wrote:
>>> On Wed, Feb 01, 2023 at 09:48:46PM +0100, Hans Verkuil wrote:
>>>> In fact, the plan is to replace the old and deprecated videobuf framework by the vb2
>>>> framework in the bttv driver in the next 2-3 months or so. That will also automatically
>>>> solve this problem.
>>>
>>> It would be great to expedite removal of the old videbuf code given
>>> how many problems it has.
>>
>> We're working on it. A lot of old drivers in drivers/staging/media/deprecated will
>> be removed in 6.3, and that leaves the cx18, bttv and saa7146 drivers that still use
>> vb1.
>>
>> This week I posted patches converting cx18 to vb2 and someone else will work on the
>> bttv conversion. We thought we could remove saa7146 as well, but it turns out that
>> that is still very much in use (somewhat unexpectedly), so I plan to convert that
>> one this month (I hope).
>>
>> I aim for removing vb1 in kernel 6.4 or 6.5.
> 
> Did this go in, I'm happy to give it a go if this is a world to test.

I just merged it for 6.6.

Regards,

	Hans