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    SubjectRe: [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@linaro.org>
    > Reported-by: kernel test robot <rong.a.chen@intel.com>
    > Cc: stable <stable@vger.kernel.org>
    > Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
    > Cc: Brendan Higgins <brendanhiggins@google.com>
    > Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
    > Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
    > Cc: Petr Mladek <pmladek@suse.com>
    > Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    > Cc: Randy Dunlap <rdunlap@infradead.org>
    > Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
    > Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
    > Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
    > Cc: Steven Rostedt <rostedt@goodmis.org>
    > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

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

    Best Regards,
    Petr

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