[PATCH 2/4] arm: dis-allow hotplug on MSM
Pavel Machek
pavel at ucw.cz
Thu Sep 30 15:52:37 EDT 2010
Hi!
> > > > Signed-off-by: Daniel Walker <dwalker at codeaurora.org>
> > > > ---
> > > > arch/arm/Kconfig | 1 +
> > > > 1 files changed, 1 insertions(+), 0 deletions(-)
> > > >
> > > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> > > > index d2dfbc2..829dd67 100644
> > > > --- a/arch/arm/Kconfig
> > > > +++ b/arch/arm/Kconfig
> > > > @@ -1211,6 +1211,7 @@ config NR_CPUS
> > > > config HOTPLUG_CPU
> > > > bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> > > > depends on SMP && HOTPLUG && EXPERIMENTAL
> > > > + depends on !ARCH_MSM
> > > > help
> > > > Say Y here to experiment with turning CPUs off and on. CPUs
> > > > can be controlled through /sys/devices/system/cpu.
> > >
> > > This is goodbye to s2ram support, AFAICT.
> >
> > This depends on SMP tho. It's like saying,
> >
> > depends on
>
> That's weird, there was more to this email..
>
> It's like saying,
>
> depends on SMP && HOTPLUG && EXPERIMENTAL && !ARCH_MSM
>
> But ARCH_MSM has no SMP, so the whole thing should short circuit right
> at the start. It's only when you bring in SMP that it get interesting.
If arch_msm has no SMP, then why is change needed?
(I was trying to warn you that you'll need HOTPLUG support to get SMP
suspend support.)
Pavel
--
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