linux-kernel - Re: lockdep: incorrect deadlock warning with two GPIO expanders

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Message-ID: <CAMpxmJUj-YS48CCfexZ3q0hxk60MS+1B51h=KRO63tpwmffBcQ@mail.gmail.com>
Date:   Fri, 16 Sep 2016 14:00:58 +0200
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Ingo Molnar <mingo@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-gpio <linux-gpio@...r.kernel.org>
Subject: Re: lockdep: incorrect deadlock warning with two GPIO expanders

2016-09-16 13:14 GMT+02:00 Bartosz Golaszewski <bgolaszewski@...libre.com>:
>
> The whole thing is a bit more complicated - I'm trying to figure out
> the code behind it, but the first expander has four parents whose
> driver == pca953x, while the second has five of them. There is no
> device name, but kobj->name corresponds with the i2c device
> sub-directories on correct addresses and busses (1-0021 for the first
> one and 4-0020 for the second on my board).

Actually nevermind my last e-mail - I did a braindead mistake when
obtaining logs.

Thanks,
Bartosz