[PATCH 2/4] arm: dis-allow hotplug on MSM

[dwalker@codeaurora.org (Daniel Walker)]

On Thu, 2010-09-30 at 21:52 +0200, Pavel Machek wrote:
> Hi!
> 
> > > > > Signed-off-by: Daniel Walker <dwalker@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'm getting it ready for SMP .. It's not there yet but will be.

> (I was trying to warn you that you'll need HOTPLUG support to get SMP
> suspend support.)

Yeah, I'm aware of it.. We haven't implemented hotplug yet, so we don't
have suspend support yet for SMP.

Daniel
-- 

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