linux-kernel - Re: [BUG]: usb: dwc3: gadget: Prevent EP queuing while stopping transfers

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Date:   Sun, 4 Apr 2021 12:01:45 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     "H. Nikolaus Schaller" <hns@...delico.com>
Cc:     Wesley Cheng <wcheng@...eaurora.org>,
        Felipe Balbi <balbi@...nel.org>, stable@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-OMAP <linux-omap@...r.kernel.org>,
        kernel@...a-handheld.com,
        Discussions about the Letux Kernel 
        <letux-kernel@...nphoenux.org>, linux-usb@...r.kernel.org
Subject: Re: [BUG]: usb: dwc3: gadget: Prevent EP queuing while stopping
 transfers

On Sun, Apr 04, 2021 at 11:29:00AM +0200, H. Nikolaus Schaller wrote:
> it seems as if the patch
> 
> 	9de499997c37 ("usb: dwc3: gadget: Prevent EP queuing while stopping transfers") in v5.11.y
> 	f09ddcfcb8c5 ("usb: dwc3: gadget: Prevent EP queuing while stopping transfers") in v5.12-rc5
> 
> reproducible breaks dwc3 RNDIS gadget, at least on the Pyra Handheld (OMAP5).
> 
> The symptom of having this patch in tree (v5.11.10 or v5.12) is that
> rndis/gadget initially works after boot.

Should be fixed now by 5aef629704ad ("usb: dwc3: gadget: Clear DEP flags
after stop transfers in ep disable").  Can you test and verify this?

thanks,

greg k-h