linux-kernel - Re: [PATCH] dwc3: gadget: Introduce dwc3_endpoint_xfer

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Date:	Thu, 26 May 2016 13:27:16 +0300
From:	Felipe Balbi <balbi@...nel.org>
To:	Baolin Wang <baolin.wang@...aro.org>
Cc:	Greg KH <gregkh@...uxfoundation.org>,
	Mark Brown <broonie@...nel.org>,
	USB <linux-usb@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dwc3: gadget: Introduce dwc3_endpoint_xfer_xxx() to check endpoint type


Hi,

Baolin Wang <baolin.wang@...aro.org> writes:
> On 26 May 2016 at 17:45, Felipe Balbi <balbi@...nel.org> wrote:
>>
>> Hi,
>>
>> Baolin Wang <baolin.wang@...aro.org> writes:
>>
>> <trim>
>>
>>>> Also note that the usb_endpoint_xfer_isoc() call on line 2067 of
>>>> gadget.c (as in my testing/next from today) won't even get executed, so
>>>> we're safe there.
>>>
>>> Never will be executed? then we can remove the
>>> usb_endpoint_xfer_isoc() (line 2025) at risk?
>>>
>>> 2023         clean_busy = dwc3_cleanup_done_reqs(dwc, dep, event, status);
>>> 2024         if (clean_busy && (is_xfer_complete ||
>>> 2025
>>> usb_endpoint_xfer_isoc(dep->endpoint.desc)))
>>> 2026                 dep->flags &= ~DWC3_EP_BUSY;
>>
>> hmm, now that I look at this again, in case of XferInProgress, we could
>> still have a problem.
>>
>> I'll fix it up in that commit I pointed you to.
>
> Great. Thanks.

fixed now:

https://git.kernel.org/cgit/linux/kernel/git/balbi/usb.git/commit/?h=testing/next&id=983b84268656ff2686253b05097d28003bbec52f

-- 
balbi

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