linux-kernel - [PATCH 4.15 031/105] Bluetooth: btusb: Remove Yoga 920 from the btusb_needs_reset_resume

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Message-Id: <20180327162759.272790558@linuxfoundation.org>
Date:   Tue, 27 Mar 2018 18:27:11 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Brian Norris <briannorris@...omium.org>,
        Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Kevin Fenzi <kevin@...ye.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Marcel Holtmann <marcel@...tmann.org>
Subject: [PATCH 4.15 031/105] Bluetooth: btusb: Remove Yoga 920 from the btusb_needs_reset_resume_table

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

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

From: Hans de Goede <hdegoede@...hat.com>

commit f0e8c61110c2c85903b136ba070daf643a8b6842 upstream.

Commit 1fdb92697469 ("Bluetooth: btusb: Use DMI matching for QCA
reset_resume quirking"), added the Lenovo Yoga 920 to the
btusb_needs_reset_resume_table.

Testing has shown that this is a false positive and the problems where
caused by issues with the initial fix: commit fd865802c66b ("Bluetooth:
btusb: fix QCA Rome suspend/resume"), which has already been reverted.

So the QCA Rome BT in the Yoga 920 does not need a reset-resume quirk at
all and this commit removes it from the btusb_needs_reset_resume_table.

Note that after this commit the btusb_needs_reset_resume_table is now
empty. It is kept around on purpose, since this whole series of commits
started for a reason and there are actually broken platforms around,
which need to be added to it.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1514836
Fixes: 1fdb92697469 ("Bluetooth: btusb: Use DMI matching for QCA ...")
Cc: stable@...r.kernel.org
Cc: Brian Norris <briannorris@...omium.org>
Cc: Kai-Heng Feng <kai.heng.feng@...onical.com>
Tested-by: Kevin Fenzi <kevin@...ye.com>
Suggested-by: Brian Norris <briannorris@...omium.org>
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Reviewed-by: Brian Norris <briannorris@...omium.org>
Signed-off-by: Marcel Holtmann <marcel@...tmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/bluetooth/btusb.c |    7 -------
 1 file changed, 7 deletions(-)

--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -382,13 +382,6 @@ static const struct usb_device_id blackl
  * the module itself. So we use a DMI list to match known broken platforms.
  */
 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
-	{
-		/* Lenovo Yoga 920 (QCA Rome device 0cf3:e300) */
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 920"),
-		},
-	},
 	{}
 };