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Message-ID: <0C18FE92A7765D4EB9EE5D38D86A563A01DF9007@SHSMSX103.ccr.corp.intel.com>
Date:	Fri, 18 Dec 2015 07:34:32 +0000
From:	"Du, Changbin" <changbin.du@...el.com>
To:	Felipe Balbi <balbi@...com>
CC:	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"John.Youn@...opsys.com" <John.Youn@...opsys.com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"lkp@...org" <lkp@...org>, "Wu, Fengguang" <fengguang.wu@...el.com>
Subject: RE: [PATCH v3] usb: gadget: forbid queuing request to a disabled ep

> >
> > diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> > index 3d583a1..0c5d9ea 100644
> > --- a/include/linux/usb/gadget.h
> > +++ b/include/linux/usb/gadget.h
> > @@ -402,6 +402,9 @@ static inline void usb_ep_free_request(struct
> usb_ep *ep,
> >  static inline int usb_ep_queue(struct usb_ep *ep,
> >  			       struct usb_request *req, gfp_t gfp_flags)
> >  {
> > +	if (WARN_ON_ONCE(!ep->enabled && !ep->address))
> 
> this will only trigger for a disabled ep0. Are you testing any of your
> patches at all ?
> 
> --
> balbi
Oops, I sent a wrong patch. I will send right patch again as v4, very sorry for this.
The right patch has been verified on 3.14 by back-porting related 1 patch.
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