linux-kernel - Re: [PATCH] bus: simple-pm-bus: fix forced runtime PM use

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Message-ID: <CAMuHMdVZyh4ooooFM_ox0ZU5xChie+ivbFFKdVM5=r8xvY9QaA@mail.gmail.com>
Date: Fri, 14 Feb 2025 14:31:41 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Johan Hovold <johan@...nel.org>
Cc: Ulf Hansson <ulf.hansson@...aro.org>, Johan Hovold <johan+linaro@...nel.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, linux-pm@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Liu Ying <victor.liu@....com>
Subject: Re: [PATCH] bus: simple-pm-bus: fix forced runtime PM use

Hi Johan,

On Fri, 14 Feb 2025 at 14:27, Johan Hovold <johan@...nel.org> wrote:
> On Fri, Feb 14, 2025 at 02:16:14PM +0100, Geert Uytterhoeven wrote:
> > On Fri, 14 Feb 2025 at 13:53, Johan Hovold <johan@...nel.org> wrote:
>
> > > I didn't add a CC stable tag since this currently works, but I still
> > > consider it a bug to call these helpers unconditionally when not using
> > > runtime PM.
> >
> > Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
> >
> > > [ And during rc1 these callbacks were suddenly called and triggered a
> > > NULL-pointer dereference as you know. [1] ]
>
> > > [1] https://lore.kernel.org/lkml/Z6YcjFBWAVVVANf2@hovoldconsulting.com/
> >
> > Thanks, that was the context I needed to raise review priority ;)
> >
> > Perhaps Reported-by: and Closes:?
>
> The glitch was only temporary this time and the immediate issue was
> addressed by Rafael's partial revert in rc2:
>
>         https://lore.kernel.org/lkml/6137505.lOV4Wx5bFT@rjwysocki.net/
>
> (and which has these tags).

OK.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

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