linux-kernel - [PATCH 4.4 75/78] Revert "Bluetooth: btusb: driver to enable the usb-wakeup feature"

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Date:   Fri, 22 Dec 2017 09:46:56 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sukumar Ghorai <sukumar.ghorai@...el.com>,
        Amit K Bag <amit.k.bag@...el.com>,
        Oliver Neukum <oneukum@...e.com>,
        Marcel Holtmann <marcel@...tmann.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Brian Norris <briannorris@...omium.org>
Subject: [PATCH 4.4 75/78] Revert "Bluetooth: btusb: driver to enable the usb-wakeup feature"

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

This reverts commit ffc7565746bb2fc063fc0f484c55ef6d8951a6ee which is
commit a0085f2510e8976614ad8f766b209448b385492f upstream.

It causes problems with working systems, as noted by a number of the
ChromeOS developers.

Cc: Sukumar Ghorai <sukumar.ghorai@...el.com>
Cc: Amit K Bag <amit.k.bag@...el.com>
Cc: Oliver Neukum <oneukum@...e.com>
Cc: Marcel Holtmann <marcel@...tmann.org>
Cc: Matthias Kaehlcke <mka@...omium.org>
Reported-by: Guenter Roeck <linux@...ck-us.net>
Reported-by: Brian Norris <briannorris@...omium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/bluetooth/btusb.c |    5 -----
 1 file changed, 5 deletions(-)

--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -1050,10 +1050,6 @@ static int btusb_open(struct hci_dev *hd
 		return err;
 
 	data->intf->needs_remote_wakeup = 1;
-	/* device specific wakeup source enabled and required for USB
-	 * remote wakeup while host is suspended
-	 */
-	device_wakeup_enable(&data->udev->dev);
 
 	if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 		goto done;
@@ -1117,7 +1113,6 @@ static int btusb_close(struct hci_dev *h
 		goto failed;
 
 	data->intf->needs_remote_wakeup = 0;
-	device_wakeup_disable(&data->udev->dev);
 	usb_autopm_put_interface(data->intf);
 
 failed: