From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
Daniel Scally <djrscally@gmail.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Danilo Krummrich <dakr@kernel.org>,
stable@vger.kernel.org
Subject: Re: [PATCH v1 1/1] device property: Allow secondary lookup in fwnode_get_next_child_node()
Date: Wed, 11 Feb 2026 10:14:59 +0200 [thread overview]
Message-ID: <aYw6g-R5hXd2jnwQ@smile.fi.intel.com> (raw)
In-Reply-To: <aYurEV6kKQfI3cs8@kekkonen.localdomain>
On Wed, Feb 11, 2026 at 12:02:57AM +0200, Sakari Ailus wrote:
> On Tue, Feb 10, 2026 at 02:58:22PM +0100, Andy Shevchenko wrote:
> > When device_get_child_node_count() got split to the fwnode and device
> > respective APIs, the fwnode didn't inherit the ability to traverse over
> > the secondary fwnode. Hence any user, that switches from device to fwnode
> > API misses this feature. In particular, this was revealed by the commit
> > 1490cbb9dbfd ("device property: Split fwnode_get_child_node_count()")
> > that effectively broke the GPIO enumeration on Intel Galileo boards.
> > Fix this by moving the secondary lookup from device to fwnode API.
> >
> > Note, in general no device_*() API should go into the depth of the fwnode
> > implementation.
Thanks for the review, my answers below.
...
> > + if (IS_ERR_OR_NULL(fwnode))
> > + return NULL;
>
> This test is already being done by fwnode_call_ptr_op() (via
> fwnode_has_op()) so I'd omit it here. That would probably be best put in
> another patch though. Up to you.
I would like to keep this as is for the matter of backporting.
With that done, I can clean up further.
...
> As the function becomes trivial, I'd move it to property.h.
Yes, but the same applies to many functions in the property.c. I don't want to
treat this specially:
- exceptionally for this function (what about the rest?)
- for the matters of backporting
...
TL;DR: I would like to move this patch forward as is. After that I will
consider cleaning up as suggested taking into account other places.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2026-02-11 8:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-10 13:58 [PATCH v1 1/1] device property: Allow secondary lookup in fwnode_get_next_child_node() Andy Shevchenko
2026-02-10 22:02 ` Sakari Ailus
2026-02-11 8:14 ` Andy Shevchenko [this message]
2026-02-11 8:27 ` Sakari Ailus
2026-02-11 8:33 ` Andy Shevchenko
2026-02-22 23:19 ` Danilo Krummrich
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=aYw6g-R5hXd2jnwQ@smile.fi.intel.com \
--to=andriy.shevchenko@linux.intel.com \
--cc=dakr@kernel.org \
--cc=djrscally@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=heikki.krogerus@linux.intel.com \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=rafael@kernel.org \
--cc=sakari.ailus@linux.intel.com \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox