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Date:   Sun, 25 Jun 2023 13:17:23 -0500
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Subject: Re: Fwd: After kernel 6.3.7 or 6.3.8 b43 driver fails
To:     Arnd Bergmann <arnd@arndb.de>,
        "Sardonimous ." <sardonimous@hotmail.com>,
        Bagas Sanjaya <bagasdotme@gmail.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Regressions <regressions@lists.linux.dev>,
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        Netdev <netdev@vger.kernel.org>
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        kernel test robot <lkp@intel.com>,
        Simon Horman <simon.horman@corigine.com>,
        Kalle Valo <kvalo@kernel.org>
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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