linux-kernel - Re: [PATCH 4.4 009/115] Bluetooth: btusb: driver to enable the usb-wakeup feature

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Message-ID: <20171221205057.GC29509@kroah.com>
Date:   Thu, 21 Dec 2017 21:50:57 +0100
From:   "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
To:     Matthias Kaehlcke <mka@...omium.org>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     Brian Norris <briannorris@...omium.org>,
        "Ghorai, Sukumar" <sukumar.ghorai@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "Bag, Amit K" <amit.k.bag@...el.com>,
        Oliver Neukum <oneukum@...e.com>,
        Marcel Holtmann <marcel@...tmann.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Todd Broch <tbroch@...omium.org>,
        Rajat Jain <rajatja@...omium.org>,
        Miao Chou <mcchou@...omium.org>,
        "Rao Pv, Sadashiva" <sadashiva.rao.pv@...el.com>
Subject: Re: [PATCH 4.4 009/115] Bluetooth: btusb: driver to enable the
 usb-wakeup feature

On Thu, Dec 21, 2017 at 09:46:18PM +0100, gregkh@...uxfoundation.org wrote:
> On Thu, Dec 21, 2017 at 12:04:57PM -0800, Guenter Roeck wrote:
> > On Thu, Dec 21, 2017 at 11:10:58AM -0800, Brian Norris wrote:
> > > On Thu, Dec 21, 2017 at 07:05:03PM +0000, Ghorai, Sukumar wrote:
> > > > >>On Thu, Dec 21, 2017 at 06:52:31PM +0000, Ghorai, Sukumar wrote:
> > > > >> Bug: platform can't wake using LE mouse/ keyboatd or any other LE I/O
> > > > >> device connected.
> > > > >
> > > > >Could you ever? If not, that looks like a feature request to me...
> > > > Agree, feature request... however  we need this feature for rapid use of Bluetooth LE devices.
> > > 
> > > Is that what -stable is for now? For getting your pet feature enabled
> > 
> > I sincerely hope not. If -stable now officially supports adding new
> > features, we'll have to revisit our strategy for merging stable releases.
> 
> I'm not trying to add any new features at all, this was added because I
> was told it resolved an issue that people had with their hardware.

Wait, I was told by a chromeos developer to do this!  Matthias asked for
this patch to be merged to resolve a regression you all found on your
systems.  For it to now cause problems seems really "odd" to me...

So you all need to get your story straight here :)

I want all 3 of you (Guenter, Brian, and Matthias) to figure out what is
going on here please before I do _anything_ in the stable trees with
this patch.

greg k-h