linux-kernel - Re: [RFC PATCH v2 0/1] of: easier debugging for node life cycle issues

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Message-ID: <20180125231443.44yy65ztr6exaam7@ninjato>
Date:   Fri, 26 Jan 2018 00:14:43 +0100
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Frank Rowand <frowand.list@...il.com>
Cc:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        devicetree@...r.kernel.org,
        Tyrel Datwyler <tyreld@...ux.vnet.ibm.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-renesas-soc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 0/1] of: easier debugging for node life cycle
 issues


> This means that ftrace can not be used for the of_node_get(),
> of_node_put(), and of_node_release() debug info, because
> these functions are called before early_initcall().

For the record: You can still unbind/bind devices. This is how I
debugged an issue.


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