linux-kernel - Re: [PATCH v9 08/15] cobalt: set queue as unordered

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Message-ID: <de63cac5-b344-c220-bcae-33faddcb61ea@xs4all.nl>
Date:   Mon, 7 May 2018 13:04:40 +0200
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Ezequiel Garcia <ezequiel@...labora.com>,
        linux-media@...r.kernel.org
Cc:     kernel@...labora.com,
        Mauro Carvalho Chehab <mchehab@....samsung.com>,
        Shuah Khan <shuahkh@....samsung.com>,
        Pawel Osciak <pawel@...iak.com>,
        Alexandre Courbot <acourbot@...omium.org>,
        Sakari Ailus <sakari.ailus@....fi>,
        Brian Starkey <brian.starkey@....com>,
        linux-kernel@...r.kernel.org,
        Gustavo Padovan <gustavo.padovan@...labora.com>
Subject: Re: [PATCH v9 08/15] cobalt: set queue as unordered

On 04/05/18 22:06, Ezequiel Garcia wrote:
> From: Gustavo Padovan <gustavo.padovan@...labora.com>
> 
> The cobalt driver may reorder the capture buffers so we need to report
> it as such.
> 
> v3: set unordered as a property
> v2: use vb2_ops_set_unordered() helper
> 
> Signed-off-by: Gustavo Padovan <gustavo.padovan@...labora.com>
> Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
> ---
>  drivers/media/pci/cobalt/cobalt-v4l2.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/media/pci/cobalt/cobalt-v4l2.c b/drivers/media/pci/cobalt/cobalt-v4l2.c
> index e2a4c705d353..8f06cc7f1c81 100644
> --- a/drivers/media/pci/cobalt/cobalt-v4l2.c
> +++ b/drivers/media/pci/cobalt/cobalt-v4l2.c
> @@ -1236,6 +1236,7 @@ static int cobalt_node_register(struct cobalt *cobalt, int node)
>  	q->min_buffers_needed = 2;
>  	q->lock = &s->lock;
>  	q->dev = &cobalt->pci_dev->dev;
> +	q->unordered = 1;
>  	vdev->queue = q;
>  
>  	video_set_drvdata(vdev, s);
> 

As mentioned in my review of v8 of this patch, you also need to mark all formats
in this driver as unordered.

Regards,

	Hans