linux-kernel - RE: [PATCH net-next 1/2] r8152: split rtl8152

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Message-ID: <0835B3720019904CB8F7AA43166CEEB201A5E4ED@RTITMBSV06.realtek.com.tw>
Date:   Tue, 13 Jun 2017 02:27:20 +0000
From:   Hayes Wang <hayeswang@...ltek.com>
To:     Oliver Neukum <oneukum@...e.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     nic_swsd <nic_swsd@...ltek.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: RE: [PATCH net-next 1/2] r8152: split rtl8152_resume function

Oliver Neukum [mailto:oneukum@...e.com]
> Sent: Monday, June 12, 2017 8:33 PM
[...]
> > +               usb_submit_urb(tp->intr_urb, GFP_KERNEL);
> 
> If you ever built a device with included storage, this can deadlock,
> as you may want to wake up a device for memory that is needed to wake
> up a device. Use GFP_NOIO in resume() and reset_resume(), always.

I would change it. Thanks.

Best Regards,
Hayes