linux-kernel - Re: [PATCH] USB: yurex: remove allocation of coherent buffer for setup-packet buffer

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Message-ID: <CAM1upfMY=fh_XgYuY69SOZEz7y0G3hdqvZxoBWTDVGH5j7ixyQ@mail.gmail.com>
Date:	Thu, 29 Mar 2012 21:51:05 +0900
From:	Tomoki Sekiyama <tomoki.sekiyama@...il.com>
To:	Sergei Shtylyov <sshtylyov@...sta.com>
Cc:	gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] USB: yurex: remove allocation of coherent buffer for
 setup-packet buffer

Hello,

2012年3月29日20:57 Sergei Shtylyov <sshtylyov@...sta.com>:
> Hello.
>
> On 29-03-2012 3:20, Tomoki Sekiyama wrote:
>
>> Removes allocation of coherent buffer for the control-request setup-packet
>> buffer from the yurex driver. Using coherent buffers for setup-packet is
>> obsoleted and does not work with some USB host implementations.
>
>> This patch also fixes missing URB_NO_TRANSFER_DMA_MAP flag in urb.
>
>   Looks like the patch should be split into two then as it does two different
> things.
>
> WBR, Sergei

OK, I will split this patch into two pieces and re-send them.

Thank you,

Tomoki Sekiyama
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