linux-kernel - [5.2.0-rcx] Bluetooth: hci0: unexpected event for opcode

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Date:   Wed, 5 Jun 2019 13:30:51 +0200
From:   Jörg Otte <jrg.otte@...il.com>
To:     Marcel Holtmann <marcel@...tmann.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [5.2.0-rcx] Bluetooth: hci0: unexpected event for opcode

In 5.2.0-rcx I see a new error message on startup probably after
loading the Bluetooth firmware:
[    1.609460] Bluetooth: hci0: unexpected event for opcode 0xfc2f

> dmesg | grep Bluetooth
[    0.130969] Bluetooth: Core ver 2.22
[    0.130973] Bluetooth: HCI device and connection manager initialized
[    0.130974] Bluetooth: HCI socket layer initialized
[    0.130975] Bluetooth: L2CAP socket layer initialized
[    0.130976] Bluetooth: SCO socket layer initialized
[    0.374716] Bluetooth: RFCOMM TTY layer initialized
[    0.374718] Bluetooth: RFCOMM socket layer initialized
[    0.374718] Bluetooth: RFCOMM ver 1.11
[    0.374719] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    0.374720] Bluetooth: BNEP socket layer initialized
[    0.374721] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[    0.374722] Bluetooth: HIDP socket layer initialized
[    1.422530] Bluetooth: hci0: read Intel version: 370710018002030d00
[    1.422533] Bluetooth: hci0: Intel Bluetooth firmware file:
intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
[    1.609460] Bluetooth: hci0: unexpected event for opcode 0xfc2f
[    1.625557] Bluetooth: hci0: Intel firmware patch completed and activated
[   21.986125] input: BluetoothMouse3600 Mouse as
/devices/virtual/misc/uhid/0005:045E:0916.0004/input/input15
[   21.986329] input: BluetoothMouse3600 Consumer Control as
/devices/virtual/misc/uhid/0005:045E:0916.0004/input/input16
[   21.986408] hid-generic 0005:045E:0916.0004: input,hidraw3:
BLUETOOTH HID v1.10 Mouse [BluetoothMouse3600] on 80:19:34:4D:31:44


The error message goes away if I revert following patch:
f80c5dad7b64 Bluetooth: Ignore CC events not matching the last HCI command

Thanks, Jörg