Re: [PATCH v2] Bluetooth: btrtl: Restore old logic to assume firmware is already loaded

From: Marcel Holtmann
Date: Mon Jan 28 2019 - 07:25:17 EST


Hi Kai-Heng,

> Realtek bluetooth may not work after reboot:
> [ 12.446130] Bluetooth: hci0: RTL: rtl: unknown IC info, lmp subver a99e, hci rev 826c, hci ver 0008
>
> This is a regression introduced by commit 26503ad25de8 ("Bluetooth:
> btrtl: split the device initialization into smaller parts"). The new
> logic errors out early when no matching IC info can be found, in this
> case it means the firmware is already loaded.
>
> So let's assume the firmware is already loaded when we can't find
> matching IC info, like the old logic did.
>
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=201921
> Fixes: 26503ad25de8 ("Bluetooth: btrtl: split the device initialization into smaller parts")
> Cc: stable@xxxxxxxxxxxxxxx # 4.19+
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
> ---
> drivers/bluetooth/btrtl.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel