Re: [PATCH] Bluetooth: hci_qca: WCN3988: Drop baudrate change vendor event

[Bartosz Golaszewski]

On Wed, Nov 04, 2026 at 05:50:26PM +0800, Shuai Zhang wrote:
> Firmware download on the WCN3988 sometimes fails and is retried:
> 
>   Bluetooth: hci0: QCA TLV response size mismatch
>   Bluetooth: hci0: QCA Failed to request file: qca/apbtfw11.tlv (-84)
> 
> The vendor event answering the baudrate change command can arrive late
> and is then taken as the response of the last firmware segment, which
> waits for any vendor event. Its length is 2 instead of the expected 3:
> 
>   < HCI Command: Vendor (0x3f|0x0000) plen 220    (last segment)
>   > HCI Event: Vendor (0xff) plen 2
>           92 01
> 
> Drop and wait for this event on the WCN3988.
> 
> Signed-off-by: Shuai Zhang <shuai.zhang@xxxxxxxxxxxxxxxx>
> ---
 
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>