linux-kernel - Re: [PATCH 4.9] usbip: vhci_hcd: clear just the USB_PORT_STAT

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Date:   Fri, 2 Feb 2018 11:21:39 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Shuah Khan <shuahkh@....samsung.com>
Cc:     valentina.manea.m@...il.com, shuah@...nel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH 4.9] usbip: vhci_hcd: clear just the USB_PORT_STAT_POWER
 bit

On Mon, Jan 29, 2018 at 01:13:32PM -0700, Shuah Khan wrote:
> On 01/28/2018 05:14 AM, Greg KH wrote:
> > On Fri, Jan 26, 2018 at 11:54:35AM -0700, Shuah Khan wrote:
> >> Upstream commit 1c9de5bf4286 ("usbip: vhci-hcd: Add USB3 SuperSpeed
> >> support")
> > 
> > Hm, I think you have the wrong commit id here.
> > 
> > I don't see any commit upstream with the Subject you have here, what are
> > you referring to?
> > 
> > thanks,
> > 
> > greg k-h
> > 
> 
> That is odd. Th commit went in a while back. Here are the details:
> 
> This is the commit from upstream:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/usb/usbip/vhci_hcd.c?id=1c9de5bf428612458427943b724bea51abde520a
> 
> commit 1c9de5bf428612458427943b724bea51abde520a
> Author: Yuyang Du <yuyang.du@...el.com>
> Date:   Thu Jun 8 13:04:10 2017 +0800
> 
>     usbip: vhci-hcd: Add USB3 SuperSpeed support
>     
>     This patch adds a USB3 HCD to an existing USB2 HCD and provides
>     the support of SuperSpeed, in case the device can only be enumerated
>     with SuperSpeed.
>     
>     The bulk of the added code in usb3_bos_desc and hub_control to support
>     SuperSpeed is borrowed from the commit 1cd8fd2887e162ad ("usb: gadget:
>     dummy_hcd: add SuperSpeed support").
>     
>     With this patch, each vhci will have VHCI_HC_PORTS HighSpeed ports
>     and VHCI_HC_PORTS SuperSpeed ports.
>     
>     Suggested-by: Krzysztof Opasiak <k.opasiak@...sung.com>
>     Signed-off-by: Yuyang Du <yuyang.du@...el.com>
>     Acked-by: Shuah Khan <shuahkh@....samsung.com>
>     Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> 
> 
> I isolated and backported a one line fix to the problem I saw in 4.9
> and 4.4 stables.

Ah, the "isolation" part is what I missed here, sorry about that.  You
are right, I'll go queue this up now, sorry for the noise.

greg k-h