linux-kernel - Re: [PATCH v3] Bluetooth: hci_bcm: Handle specific unknown packets after firmware loading

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Message-Id: <EACA869F-7A07-4585-9DFA-54094C9F7CE8@holtmann.org>
Date:   Wed, 19 Dec 2018 13:44:15 +0100
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jonathan Bakker <xc-racer2@...e.ca>
Subject: Re: [PATCH v3] Bluetooth: hci_bcm: Handle specific unknown packets
 after firmware loading

Hi Pawel,

> The Broadcom controller on aries S5PV210 boards sends out a couple of
> unknown packets after the firmware is loaded.  This will cause
> logging of errors such as:
> 	Bluetooth: hci0: Frame reassembly failed (-84)
> 
> This is probably also the case with other boards, as there are related
> Android userspace patches for custom ROMs such as
> https://review.lineageos.org/#/c/LineageOS/android_system_bt/+/142721/
> Since this appears to be intended behaviour, treated them as diagnostic
> packets.
> 
> Note that this is another variant of commit 01d5e44ace8a
> ("Bluetooth: hci_bcm: Handle empty packet after firmware loading")
> 
> Signed-off-by: Jonathan Bakker <xc-racer2@...e.ca>
> Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
> 
> ---
> Changes from v2:
>   - Rebased against latest bluetooth-next tree
> 
> Changes from v1:
>   - Rename UNKNOWN to TYPE49
>   - Rename UNKNOWN2 to TYPE52
> ---
> drivers/bluetooth/hci_bcm.c | 22 ++++++++++++++++++++++
> 1 file changed, 22 insertions(+)

patch has been applied to bluetooth-next tree.

Regards

Marcel