linux-kernel - Re: [PATCH v5 05/15] software_node: Enforce parent before child ordering of nodes arrays

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Message-ID: <X/sYl0e2gO2fJ4Nf@kroah.com>
Date:   Sun, 10 Jan 2021 16:09:11 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Daniel Scally <djrscally@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-media@...r.kernel.org, devel@...ica.org, rjw@...ysocki.net,
        lenb@...nel.org, mchehab@...nel.org, sergey.senozhatsky@...il.com,
        yong.zhi@...el.com, sakari.ailus@...ux.intel.com,
        bingbu.cao@...el.com, tian.shu.qiu@...el.com,
        robert.moore@...el.com, erik.kaneda@...el.com, pmladek@...e.com,
        rostedt@...dmis.org, andriy.shevchenko@...ux.intel.com,
        linux@...musvillemoes.dk,
        laurent.pinchart+renesas@...asonboard.com,
        jacopo+renesas@...ndi.org, kieran.bingham+renesas@...asonboard.com,
        hverkuil-cisco@...all.nl, m.felsch@...gutronix.de,
        niklas.soderlund+renesas@...natech.se,
        prabhakar.mahadev-lad.rj@...renesas.com, slongerbeam@...il.com,
        heikki.krogerus@...ux.intel.com,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCH v5 05/15] software_node: Enforce parent before child
 ordering of nodes arrays

On Thu, Jan 07, 2021 at 01:28:28PM +0000, Daniel Scally wrote:
> Registering software_nodes with the .parent member set to point to a
> currently unregistered software_node has the potential for problems,
> so enforce parent -> child ordering in arrays passed in to
> software_node_register_nodes().
> 
> Software nodes that are children of another software node should be
> unregistered before their parent. To allow easy unregistering of an array
> of software_nodes ordered parent to child, reverse the order in which
> software_node_unregister_nodes() unregisters software_nodes.
> 
> Suggested-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> Signed-off-by: Daniel Scally <djrscally@...il.com>
> ---
> Changes in v5:
> 
> 	- None

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>