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

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Message-ID: <CAMz4kuKcL5-SHTFBiAZZOHwv_LeJC2xmxALXqBT+1iZkDFbBDQ@mail.gmail.com>
Date:	Thu, 26 May 2016 18:27:07 +0800
From:	Baolin Wang <baolin.wang@...aro.org>
To:	Felipe Balbi <balbi@...nel.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

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.

>
> --
> balbi



-- 
Baolin.wang
Best Regards