linux-kernel - Re: [PATCH v2] USB: Add LPM quirk for Lenovo ThinkPad USB-C Dock Gen2 Ethernet

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Date:   Mon, 12 Apr 2021 21:10:41 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     Johan Hovold <johan@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        penghao <penghao@...ontech.com>,
        Oliver Neukum <oneukum@...e.com>,
        Jonathan Cox <jonathan@...ox.net>,
        Kars Mulder <kerneldev@...smulder.nl>,
        Tomasz Meresiński <tomasz@...esinski.eu>,
        "open list:USB SUBSYSTEM" <linux-usb@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] USB: Add LPM quirk for Lenovo ThinkPad USB-C Dock Gen2 Ethernet

On Mon, Apr 12, 2021 at 9:09 PM Johan Hovold <johan@...nel.org> wrote:
>
> On Mon, Apr 12, 2021 at 09:05:20PM +0800, Kai-Heng Feng wrote:
> > This is another branded 8153 device that doesn't work well with LPM
> > enabled:
> > [ 400.597506] r8152 5-1.1:1.0 enx482ae3a2a6f0: Tx status -71
> >
> > So disable LPM to resolve the issue.
> >
> > BugLink: https://bugs.launchpad.net/bugs/1922651
> > Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
> > ---
> > v2:
> >  - Put the quirk in the right order.
>
> Seriously... You sent the exact same patch again. Still not ordered.

Oops, sorry for that, I mistyped the patch name :(
Will send a correct one.

Kai-Heng

>
> >
> >  drivers/usb/core/quirks.c | 3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
> > index 76ac5d6555ae..dfedb51cf832 100644
> > --- a/drivers/usb/core/quirks.c
> > +++ b/drivers/usb/core/quirks.c
> > @@ -434,6 +434,9 @@ static const struct usb_device_id usb_quirk_list[] = {
> >       { USB_DEVICE(0x1532, 0x0116), .driver_info =
> >                       USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
> >
> > +     /* Lenovo ThinkPad USB-C Dock Gen2 Ethernet (RTL8153 GigE) */
> > +     { USB_DEVICE(0x17ef, 0xa387), .driver_info = USB_QUIRK_NO_LPM },
> > +
> >       /* Lenovo ThinkCenter A630Z TI024Gen3 usb-audio */
> >       { USB_DEVICE(0x17ef, 0xa012), .driver_info =
> >                       USB_QUIRK_DISCONNECT_SUSPEND },
>
> Johan