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Message-ID: <20200525075937.GA5300@linux-b0ei>
Date:   Mon, 25 May 2020 09:59:38 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, linux@...ck-us.net,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        kernel test robot <rong.a.chen@...el.com>,
        stable <stable@...r.kernel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 1/2] software node: implement software_node_unregister()

On Sun 2020-05-24 17:30:40, Greg Kroah-Hartman wrote:
> Sometimes it is better to unregister individual nodes instead of trying
> to do them all at once with software_node_unregister_nodes(), so create
> software_node_unregister() so that you can unregister them one at a
> time.
> 
> This is especially important when creating nodes in a hierarchy, with
> parent -> children representations.  Children always need to be removed
> before a parent is, as the swnode logic assumes this is going to be the
> case.
> 
> Fix up the lib/test_printf.c fwnode_pointer() test which to use this new
> function as it had the problem of tearing things down in the backwards
> order.
> 
> Fixes: f1ce39df508d ("lib/test_printf: Add tests for %pfw printk modifier")
> Reported-by: Naresh Kamboju <naresh.kamboju@...aro.org>
> Reported-by: kernel test robot <rong.a.chen@...el.com>
> Cc: stable <stable@...r.kernel.org>
> Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Cc: Brendan Higgins <brendanhiggins@...gle.com>
> Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
> Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> Cc: Petr Mladek <pmladek@...e.com>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> Cc: Randy Dunlap <rdunlap@...radead.org>
> Cc: Rasmus Villemoes <linux@...musvillemoes.dk>
> Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>
> Cc: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

I could confirm that this fixed lib/test_printf.c. The patch looks reasonable.

Tested-by: Petr Mladek <pmladek@...e.com>

Best Regards,
Petr

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