linux-kernel - Re: [PATCHv4 01/11] videobuf2: add cache management members

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Message-ID: <6f5916dd-63f6-5d19-13f4-edd523205a1f@xs4all.nl>
Date:   Sat, 7 Mar 2020 11:10:00 +0100
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Sergey Senozhatsky <senozhatsky@...omium.org>
Cc:     Hans Verkuil <hans.verkuil@...co.com>,
        Tomasz Figa <tfiga@...omium.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Sakari Ailus <sakari.ailus@....fi>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Pawel Osciak <posciak@...omium.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv4 01/11] videobuf2: add cache management members

On 07/03/2020 10:46, Sergey Senozhatsky wrote:
> On (20/03/06 14:57), Hans Verkuil wrote:
> [..]
>>>   * @lock:	pointer to a mutex that protects the &struct vb2_queue. The
>>>   *		driver can set this to a mutex to let the v4l2 core serialize
>>>   *		the queuing ioctls. If the driver wants to handle locking
>>> @@ -564,6 +573,7 @@ struct vb2_queue {
>>>  	unsigned			requires_requests:1;
>>>  	unsigned			uses_qbuf:1;
>>>  	unsigned			uses_requests:1;
>>> +	unsigned			allow_cache_hints:1;
> 
> Shall I use "unsigned int" here instead of "unsigned"?

The vb2_queue bitfields are the only places in that header were 'unsigned' is
used. I think that that should be fixed in a separate patch. It's nice to have
it consistent.

Put that patch in the beginning of the series, that way I can pick it up in the
next pull request.

Regards,

	Hans

> 
> 	-ss
>