linux-kernel - Re: REGRESSION: dwc2: gadget: Add scatter-gather mode

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Date:   Thu, 21 Mar 2019 08:19:27 +0100
From:   Andrzej Pietrasiewicz <andrzejtp2010@...il.com>
To:     John Stultz <john.stultz@...aro.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Minas Harutyunyan <Minas.Harutyunyan@...opsys.com>,
        Artur Petrosyan <Arthur.Petrosyan@...opsys.com>,
        Linux USB List <linux-usb@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Tom Gall <tom.gall@...aro.org>,
        Andrzej Hajda <a.hajda@...sung.com>
Subject: Re: REGRESSION: dwc2: gadget: Add scatter-gather mode

Hi John,


W dniu 20.03.2019 o 21:17, John Stultz pisze:
> On Mon, Mar 11, 2019 at 9:50 AM John Stultz <john.stultz@...aro.org> wrote:
>> On Mon, Mar 11, 2019 at 3:15 AM Marek Szyprowski
>> <m.szyprowski@...sung.com> wrote:
>>> On 2019-03-08 21:53, John Stultz wrote:

<snip>

>>> I've CCed new Andrzej's email.
>>>
>>> Could you tell a bit more how to reproduce this issue? Which USB
>>> function are you running on the target system? I've noticed that you are
>>> using functionfs. Is is possible to get access to the usb function
>>> daemon to reproduce the problem here? Which version of HiKey board are
>>> you using?
>>

Can you please apply this patch:

https://www.spinics.net/lists/linux-usb/msg178195.html

and see if this helps?

Andrzej