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Message-ID: <CAMuHMdUS-YX7tTEF0216wk+DdCbWCJ0z1huSj8cjRXp8GxJ5gg@mail.gmail.com>
Date: Wed, 24 Apr 2024 15:40:24 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Saravana Kannan <saravanak@...gle.com>
Cc: Herve Codina <herve.codina@...tlin.com>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
	Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, 
	Wolfram Sang <wsa+renesas@...g-engineering.com>, Rob Herring <robh@...nel.org>, 
	Mark Brown <broonie@...nel.org>, Len Brown <lenb@...nel.org>, 
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Daniel Scally <djrscally@...il.com>, 
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
	Sakari Ailus <sakari.ailus@...ux.intel.com>, Geert Uytterhoeven <geert+renesas@...der.be>, 
	kernel-team@...roid.com, Wolfram Sang <wsa@...nel.org>, linux-kernel@...r.kernel.org, 
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
	linux-i2c@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-spi@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH v3 0/2] fw_devlink overlay fix

Hi Saravana,

On Fri, Apr 12, 2024 at 1:56 AM Saravana Kannan <saravanak@...gle.com> wrote:
> Overlays don't work correctly with fw_devlink. This patch series fixes
> it. This series is now ready for review and merging once Geert and Herve
> give they Tested-by.
>
> Geert and Herve,
>
> This patch series should hopefully fix both of your use cases [1][2][3].
> Can you please check to make sure the device links created to/from the
> overlay devices are to/from the right ones?

Unfortunately it doesn't, and the result is worse than v2.

After applying the first patch (the revert), the issue reported in
[1] is back, as expected.

After applying both patches, that issue is not fixed, i.e. I still
need an add/rm/add cycle to instantiate the devices from the overlay.

/sys/class/devlink shows one extra link after the first add:
platform:e6060000.pinctrl--platform:e6e90000.spi ->
./../devices/virtual/devlink/platform:e6060000.pinctrl--platform:e6e90000.spi

> [1] - https://lore.kernel.org/lkml/CAMuHMdXEnSD4rRJ-o90x4OprUacN_rJgyo8x6=9F9rZ+-KzjOg@mail.gmail.com/

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68korg

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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