netdev - Re: Should b44_init lead to WARN_ON in drivers/ssb/driver

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Message-ID: <20190609235711.481bbac9@wiggum>
Date:   Sun, 9 Jun 2019 23:57:11 +0200
From:   Michael Büsch <m@...s.ch>
To:     H Buus <ubuntu@...us.com>
Cc:     Kalle Valo <kvalo@...eaurora.org>,
        Michael Chan <michael.chan@...adcom.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: Should b44_init lead to WARN_ON in
 drivers/ssb/driver_gpio.c:464?

On Sun, 9 Jun 2019 17:44:10 -0400
H Buus <ubuntu@...us.com> wrote:

> I have an old 32 bit laptop with a BCM4401-B0 100Base-TX ethernet
> controller. For every kernel from 4.19-rc1 going forward, I get a
> warning and call trace within a few seconds of start up (see dmesg
> snippet below). I have traced it to a specific commit (see commit
> below). On the face of it, I would think it is a regression, but it
> doesn't seem to cause a problem, since networking over ethernet is working.


This warning is not a problem. The commit just exposes a warning, that
has always been there.
I suggest we just remove the WARN_ON from ssb_gpio_init and
ssb_gpio_unregister.
I don't see a reason to throw a warning in that case.

-- 
Michael

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