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Message-ID: <CACRpkdbrRc6E5idzkdN53QPDCSGpPUfdjmFmEFsS3g+v=cB6LA@mail.gmail.com>
Date: Tue, 2 Sep 2025 12:10:50 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>, 
	Alexey Klimov <alexey.klimov@...aro.org>, Lorenzo Bianconi <lorenzo@...nel.org>, 
	Mark Brown <broonie@...nel.org>, Sean Wang <sean.wang@...nel.org>, 
	Matthias Brugger <matthias.bgg@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
	Paul Cercueil <paul@...pouillou.net>, Kees Cook <kees@...nel.org>, 
	Andy Shevchenko <andy@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, 
	David Hildenbrand <david@...hat.com>, Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, 
	"Liam R. Howlett" <Liam.Howlett@...cle.com>, Vlastimil Babka <vbabka@...e.cz>, 
	Mike Rapoport <rppt@...nel.org>, Suren Baghdasaryan <surenb@...gle.com>, Michal Hocko <mhocko@...e.com>, 
	Dong Aisheng <aisheng.dong@....com>, Fabio Estevam <festevam@...il.com>, 
	Shawn Guo <shawnguo@...nel.org>, Jacky Bai <ping.bai@....com>, 
	Pengutronix Kernel Team <kernel@...gutronix.de>, NXP S32 Linux Team <s32@....com>, 
	Sascha Hauer <s.hauer@...gutronix.de>, Tony Lindgren <tony@...mide.com>, 
	Haojian Zhuang <haojian.zhuang@...aro.org>, Geert Uytterhoeven <geert+renesas@...der.be>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Danilo Krummrich <dakr@...nel.org>, Neil Armstrong <neil.armstrong@...aro.org>, linux-gpio@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	linux-mediatek@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
	linux-mips@...r.kernel.org, linux-hardening@...r.kernel.org, 
	linux-mm@...ck.org, imx@...ts.linux.dev, linux-omap@...r.kernel.org, 
	linux-renesas-soc@...r.kernel.org, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v6 06/15] pinctrl: imx: don't access the pin function
 radix tree directly

On Mon, Sep 1, 2025 at 9:22 PM Bartosz Golaszewski <brgl@...ev.pl> wrote:
> On Mon, Sep 1, 2025 at 4:37 PM Mark Brown <broonie@...nel.org> wrote:
> > On Mon, Sep 01, 2025 at 03:20:44PM +0200, Bartosz Golaszewski wrote:
> >
> > > That's not a lot of info but it fails in strcmp() which - I suppose -
> > > is the one in pinmux_func_name_to_selector(). Any chance you could
> > > check what the value of np->name is in imx_pinctrl_parse_functions()?
> > > Is it NULL for some reason?
> >
> > [    0.628245] imx8mp-pinctrl 30330000.pinctrl: np->name pinctrl
> >
> > https://lava.sirena.org.uk/scheduler/job/1758947#L705
>
> Linus,
>
> FYI: I reproduced the bug on qemu with an older ARMv7 IMX SoC. Should
> be able to debug it and figure it out shortly.

Awesome, thanks a lot for your perseverance on this important
patch series.

Linus

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