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Message-ID: <Y6NsKH2VurBlufst@rowland.harvard.edu>
Date: Wed, 21 Dec 2022 15:27:20 -0500
From: Alan Stern <stern@...land.harvard.edu>
To: Ricardo Ribalda <ribalda@...omium.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Bagas Sanjaya <bagasdotme@...il.com>,
Christoph Hellwig <hch@....de>, linux-kernel@...r.kernel.org,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Randy Dunlap <rdunlap@...radead.org>, linux-usb@...r.kernel.org
Subject: Re: [PATCH v4] USB: Improve usb_fill_* documentation
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@...radead.org>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.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@...il.com>
> To: Randy Dunlap <rdunlap@...radead.org>
> To: Alan Stern <stern@...land.harvard.edu>
> To: Christoph Hellwig <hch@....de>
> To: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: linux-usb@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> ---
Acked-by: Alan Stern <stern@...land.harvard.edu>
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