From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Olof Johansson <olof@lixom.net>
Cc: Greg KH <greg@kroah.com>, Greg KH <gregkh@suse.de>,
linux-kernel@vger.kernel.org,
Chris Wedgwood <reviews@ml.cw.f00f.org>,
linuxppc-dev@ozlabs.org, paulus@samba.org, tgall.foo@gmail.com,
Thomas Gleixner <tglx@linutronix.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
stable@kernel.org
Subject: Re: [PATCH] powerpc: don't enable cpu hotplug on mpic-based pseries
Date: Wed, 10 Oct 2007 10:18:26 +1000 [thread overview]
Message-ID: <20071010101826.186f1f24.sfr@canb.auug.org.au> (raw)
In-Reply-To: <20071010000815.GB7875@lixom.net>
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Hi Olof,
On Tue, 9 Oct 2007 19:08:15 -0500 Olof Johansson <olof@lixom.net> wrote:
>
> Don't allow cpu hotplug on systems lacking XICS interrupt controller,
> since current platform code is hardcoded for it.
>
>
> Signed-off-by: Olof Johansson <olof@lixom.net>
>
>
> diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
> index 9711eb0..e29b890 100644
> --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
> +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
> @@ -252,6 +252,19 @@ static struct notifier_block pseries_smp_nb = {
>
> static int __init pseries_cpu_hotplug_init(void)
> {
> + struct device_node *np;
> + const char *typep;
> +
> + for (np = NULL; (np = of_find_node_by_name(np,
> + "interrupt-controller"));) {
> + typep = of_get_property(np, "compatible", NULL);
> + if (strstr(typep, "open-pic")) {
> + printk(KERN_INFO "CPU Hotplug not supported on "
> + "systems using MPIC\n");
You need an of_node_put(np) here.
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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next prev parent reply other threads:[~2007-10-10 0:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20071008180406.052382073@mini.kroah.org>
[not found] ` <20071008180633.GJ7627@kroah.com>
[not found] ` <20071009151702.GA19209@lixom.net>
[not found] ` <20071009222003.GA21228@kroah.com>
[not found] ` <alpine.LFD.0.9999.0710100120340.7766@localhost.localdomain>
[not found] ` <alpine.LFD.0.999.0710091625520.3838@woody.linux-foundation.org>
2007-10-10 0:03 ` [stable] [patch 09/12] Fix SMP poweroff hangs Olof Johansson
2007-10-10 0:08 ` [PATCH] powerpc: don't enable cpu hotplug on mpic-based pseries Olof Johansson
2007-10-10 0:18 ` Stephen Rothwell [this message]
2007-10-10 0:38 ` [PATCH v2] " Olof Johansson
2007-10-10 10:08 ` Milton Miller
2007-10-10 16:43 ` Olof Johansson
2007-10-11 15:25 ` Milton Miller
2007-10-11 5:52 ` Paul Mackerras
2007-10-11 5:59 ` Olof Johansson
2007-10-11 21:42 ` Milton Miller
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