netdev - Re: Fwd: After kernel 6.3.7 or 6.3.8 b43 driver fails

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Date: Sun, 25 Jun 2023 13:17:23 -0500
From: Larry Finger <Larry.Finger@...inger.net>
To: Arnd Bergmann <arnd@...db.de>, "Sardonimous ." <sardonimous@...mail.com>,
 Bagas Sanjaya <bagasdotme@...il.com>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 Linux Regressions <regressions@...ts.linux.dev>,
 Linux Wireless <linux-wireless@...r.kernel.org>,
 Netdev <netdev@...r.kernel.org>
Cc: Michael Büsch <m@...s.ch>,
 kernel test robot <lkp@...el.com>, Simon Horman <simon.horman@...igine.com>,
 Kalle Valo <kvalo@...nel.org>
Subject: Re: Fwd: After kernel 6.3.7 or 6.3.8 b43 driver fails

On 6/25/23 13:12, Arnd Bergmann wrote:
> On Sun, Jun 25, 2023, at 18:58, Sardonimous wrote:
>> I have been unable to get DMA to work in the past.  So I have been
>> configuring it with PIO=1 (/etc/modprobe,d/b43.conf):
>>
>>       options b43 pio=1 qos=0
>>
> 
> I think the qos=0 parameter is what causes the WARN_ON(), as that
> causes the use of only one queue, while the warning happens when
> tx function iterates over all the queues and warns that they don't
> exist.

I agree and suggest running with no options. If we need debug, we can turn it on 
later.

Larry