linux-kernel - Re: [PATCH] Revert "Bluetooth: btusb: driver to enable the usb-wakeup feature"

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Date:   Fri, 30 Aug 2019 09:46:41 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Mario Limonciello <Mario.Limonciello@...l.com>
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        linux-bluetooth <linux-bluetooth@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Bastien Nocera <hadess@...ess.net>,
        Christian Kellner <ckellner@...hat.com>,
        Sukumar Ghorai <sukumar.ghorai@...el.com>
Subject: Re: [PATCH] Revert "Bluetooth: btusb: driver to enable the usb-wakeup
 feature"

Hi Mario,

> This reverts commit a0085f2510e8976614ad8f766b209448b385492f.
> 
> This commit has caused regressions in notebooks that support suspend
> to idle such as the XPS 9360, XPS 9370 and XPS 9380.
> 
> These notebooks will wakeup from suspend to idle from an unsolicited
> advertising packet from an unpaired BLE device.
> 
> In a bug report it was sugggested that this is caused by a generic
> lack of LE privacy support.  Revert this commit until that behavior
> can be avoided by the kernel.
> 
> Fixes: a0085f2510e8 ("Bluetooth: btusb: driver to enable the usb-wakeup feature")
> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=200039
> Link: https://marc.info/?l=linux-bluetooth&m=156441081612627&w=2
> Link: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/750073/
> CC: Bastien Nocera <hadess@...ess.net>
> CC: Christian Kellner <ckellner@...hat.com>
> CC: Sukumar Ghorai <sukumar.ghorai@...el.com>
> Signed-off-by: Mario Limonciello <mario.limonciello@...l.com>
> ---
> drivers/bluetooth/btusb.c | 5 -----
> 1 file changed, 5 deletions(-)

patch has been applied to bluetooth-stable tree.

Regards

Marcel