linux-kernel - Re: [PATCH 1/2] topology: Check for missing CPU devices

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Message-ID: <CAMuHMdV614Hb9dFykFNbkwf-6hqx36qg_W=66tNqsexEHQ8d0A@mail.gmail.com>
Date:	Mon, 9 Jan 2012 21:13:01 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	Greg Kroah-Hartman <gregkh@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Linux-Arch <linux-arch@...r.kernel.org>,
	Thorsten Glaser <tg@...bsd.de>,
	Debian kernel team <debian-kernel@...ts.debian.org>,
	linux-m68k@...r.kernel.org, debian-68k@...ts.debian.org
Subject: Re: [PATCH 1/2] topology: Check for missing CPU devices

On Sun, Jan 8, 2012 at 21:48, Ben Hutchings <ben@...adent.org.uk> wrote:
> Commit ccbc60d3e19a1b6ae66ca0d89b3da02dde62088b ('topology: Provide
> CPU topology in sysfs in !SMP configurations') causes a crash at boot
> on a several architectures.  The topology sysfs code assumes that
> there is a CPU device for each online CPU whereas some architectures
> that do not support SMP or cpufreq do not register any CPU devices.
> Check for this before trying to use a device.
>
> Signed-off-by: Ben Hutchings <ben@...adent.org.uk>

Thanks!
Works on its own or combined with "[PATCH 2/2] cpu: Register a generic
CPU device on architectures that currently do not".

Tested-by: Geert Uytterhoeven <geert@...ux-m68k.org>

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
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