Date: Wed, 13 Jun 2018 13:09:05 +0200
From: Michael =?UTF-8?B?QsO8c2No?= <m@bues.ch>
To: Wirz <spam@lukas-wirz.de>
Cc: b43-dev@lists.infradead.org,
        linux-wireless <linux-wireless@vger.kernel.org>
Subject: Re: b43 crashes on rmmod (bcm4331)
Message-ID: <20180613130905.420695e7@wiggum> (sfid-20180613_131021_252218_C8D25ABF)
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On Wed, 13 Jun 2018 14:01:53 +0300
Wirz <spam@lukas-wirz.de> wrote:

> > CONFIG_B43_HWRNG completely switches off hwrng support in b43.
> > I don't see how a change in hwrng core could still lead to a crash in
> > b43 with this option switched off.
> >=20
> > What do you mean by "manually in the .config"? =20
>=20
> What I meant is, that I have outcommented the line 'CONFIG_B43_HWRNG=3Dy'
> in .config.
>=20
> > Can you try to properly switch off the setting with make menuconfig and
> > then recompile everything from scratch (make clean)? =20
>=20
> I was intending to do that before, but I cannot find the option for
> that.  Searching for b43_hwrng in menuconfig only shows the dependencies
> of that option, and the Kconfig file where it is defined, but not the
> path in menuconfig.  Do I indirectly set CONFIG_B43_HWRNG through the
> parameters it depends on?  I'm sorry, but this is obviously above my
> level of expertise ...

Whoops, sorry. You are right. This is an automatic config option.
That also means your manual editing of .config would be overridden.

You can edit drivers/net/wireless/broadcom/b43/Kconfig
go to the section config B43_HWRNG
and change 'default y' to 'default n'

That should disable it.

--=20
Michael

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