Re: [PATCH v2 0/3] wifi: rtw88: USB fixes

[Sascha Hauer]

On Fri, Feb 10, 2023 at 12:16:29PM +0100, Sascha Hauer wrote:
> This series addresses issues for the recently added RTW88 USB support
> reported by Andreas Henriksson and also our customer.
> 
> The hardware can't handle urbs that have a size of multiple of the
> bulkout_size (usually 512 bytes). The symptom is that the hardware
> stalls completely. The issue can be reproduced by sending a suitably
> sized ping packet from the device:
> 
> ping -s 394 <somehost>
> 
> (It's 394 bytes here on a RTL8822CU and RTL8821CU, the actual size may
> differ on other chips, it was 402 bytes on a RTL8723DU)
> 
> Other than that qsel was not set correctly. The sympton here is that
> only one of multiple bulk endpoints was used to send data.
> 
> Changes since v1:
> - Use URB_ZERO_PACKET to let the USB host controller handle it automatically
>   rather than working around the issue.
> 
> Sascha Hauer (3):
>   wifi: rtw88: usb: Set qsel correctly
>   wifi: rtw88: usb: send Zero length packets if necessary
>   wifi: rtw88: usb: drop now unnecessary URB size check

These patches went in upstream as:

7869b834fb07c wifi: rtw88: usb: Set qsel correctly
07ce9fa6ab0e5 wifi: rtw88: usb: send Zero length packets if necessary
462c8db6a0116 wifi: rtw88: usb: drop now unnecessary URB size check

These patches make the RTW88 USB support much more reliable. Can they be
picked for the current 6.2 stable series please?

Sascha

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |