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

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Date:   Thu, 21 Dec 2017 20:15:23 +0000
From:   "Ghorai, Sukumar" <sukumar.ghorai@...el.com>
To:     Guenter Roeck <linux@...ck-us.net>
CC:     Brian Norris <briannorris@...omium.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        "Oliver Neukum" <oneukum@...e.com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "Bag, Amit K" <amit.k.bag@...el.com>,
        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

>> I understand this feature is creating instability in other area.
>> However - 1. the  problem will remain same when enable the usb-wakeup
>> feature form kernel or user-space or udev rule, and as long LE device is
>connected.
>
>There is a slight difference of leaving the decision to the user (or to
>userspace) or forcing it down the throat of everyone by adding it to the kernel.
>
>Your statement "I understand this feature is creating instability in other area"
>should really be a wakeup call. It almost sounds like you are aware that it is
>causing problems, but you don't care because it fits _your_ needs. I hope that is
>not the case, but if it is, please keep in mind that you are not the only user of the
>Linux kernel.
No I don't know what is the problem here...
As mentioned, keeping wake up enable(default) is same as BR/EDR mouse connected.
Hence you will see the same platform behavior when BR/EDR mouse connected, and 
Without this patch.

>
>Thanks,
>Guenter