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Date:   Wed, 21 Dec 2022 15:27:20 -0500
From:   Alan Stern <stern@rowland.harvard.edu>
To:     Ricardo Ribalda <ribalda@chromium.org>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Bagas Sanjaya <bagasdotme@gmail.com>,
        Christoph Hellwig <hch@lst.de>, linux-kernel@vger.kernel.org,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Randy Dunlap <rdunlap@infradead.org>, linux-usb@vger.kernel.org
Subject: Re: [PATCH v4] USB: Improve usb_fill_* documentation
Message-ID: <Y6NsKH2VurBlufst@rowland.harvard.edu>
References: <20221220-usb-dmadoc-v4-0-74a045bf14f4@chromium.org>
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On Wed, Dec 21, 2022 at 08:34:51PM +0100, Ricardo Ribalda wrote:
> Document the transfer buffer requirement. That is, the buffer must be
> DMAble - otherwise data corruption might occur.
> 
> Acked-by: Randy Dunlap <rdunlap@infradead.org>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> ---
> USB: Improve usb_fill_* documentation
> 
> After trying to "cleanup" the uvc code, I was patiently explained about
> the requirements of the urb transfer buffers.
> 
> Lets make this explicit, so other developers do not make the same mistake.
> 
> To: Bagas Sanjaya <bagasdotme@gmail.com>
> To: Randy Dunlap <rdunlap@infradead.org>
> To: Alan Stern <stern@rowland.harvard.edu>
> To: Christoph Hellwig <hch@lst.de>
> To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: linux-usb@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---

Acked-by: Alan Stern <stern@rowland.harvard.edu>