Hi Caleb,
> Since commit 3e54c5890c87 ("Bluetooth: hci_event: Use of a function table to handle HCI events"),
> some devices see errors being printed for vendor events, e.g.
>
> [ 75.806141] Bluetooth: hci0: setting up wcn399x
> [ 75.948311] Bluetooth: hci0: unexpected event 0xff length: 14 > 0
> [ 75.955552] Bluetooth: hci0: QCA Product ID :0x0000000a
> [ 75.961369] Bluetooth: hci0: QCA SOC Version :0x40010214
> [ 75.967417] Bluetooth: hci0: QCA ROM Version :0x00000201
> [ 75.973363] Bluetooth: hci0: QCA Patch Version:0x00000001
> [ 76.000289] Bluetooth: hci0: QCA controller version 0x02140201
> [ 76.006727] Bluetooth: hci0: QCA Downloading qca/crbtfw21.tlv
> [ 76.986850] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.013574] Bluetooth: hci0: QCA Downloading qca/oneplus6/crnv21.bin
> [ 77.024302] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.032681] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.040674] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.049251] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.057997] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.066320] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.075065] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.083073] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.091250] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.099417] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.110166] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.118672] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.127449] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.137190] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.146192] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.154242] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.163183] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.171202] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.179364] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.187259] Bluetooth: hci0: unexpected event 0xff length: 3 > 0
> [ 77.198451] Bluetooth: hci0: QCA setup on UART is completed
>
> Use the quick-return path in hci_event_func() to avoid printing this
> message for vendor events, this reverts to the previous behaviour which
> didn't print an error for vendor events.
>
> Fixes: 3e54c5890c87 ("Bluetooth: hci_event: Use of a function table to handle HCI events")
> Signed-off-by: Caleb Connolly <caleb.connolly@xxxxxxxxxx>
> ---
> net/bluetooth/hci_event.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
patch has been applied to bluetooth-stable tree.
Regards
Marcel
