linux-kernel - Re: [PATCH 14/24] msm: add hotplug stub functions

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Message-ID: <1283466330.3674.368.camel@c-dwalke-linux.qualcomm.com>
Date:	Thu, 02 Sep 2010 15:25:30 -0700
From:	Daniel Walker <dwalker@...eaurora.org>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Jeff Ohlstein <johlstei@...eaurora.org>,
	linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	David Brown <davidb@...eaurora.org>,
	Bryan Huntsman <bryanh@...eaurora.org>,
	Gregory Bean <gbean@...eaurora.org>,
	Stepan Moskovchenko <stepanm@...eaurora.org>,
	Abhijeet Dharmapurikar <adharmap@...eaurora.org>
Subject: Re: [PATCH 14/24] msm: add hotplug stub functions

On Thu, 2010-09-02 at 18:12 +0100, Russell King - ARM Linux wrote:
> On Thu, Sep 02, 2010 at 09:49:37AM -0700, Daniel Walker wrote:
> > On Thu, 2010-09-02 at 12:11 +0100, Russell King - ARM Linux wrote:
> > > On Tue, Aug 24, 2010 at 09:57:43PM -0700, Jeff Ohlstein wrote:
> > > > From: Daniel Walker <dwalker@...eaurora.org>
> > > > 
> > > > We don't actually do anything for hotplug yet. This just lets
> > > > everything compile, even when hotplug is enabled.
> > > 
> > > And the point of that is?  If you're not supporting hotplug CPU yet, then
> > > don't allow it to be enabled.
> > 
> > How do we do that? I didn't see a easy way to prevent it.
> 
> 
> config HOTPLUG_CPU
>         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
>         depends on SMP && HOTPLUG && EXPERIMENTAL
> +	depends on !ARCH_MSM

So every other SMP does this? I didn't see any other's besides RealView
implementing these. I just assumed they all had compile failures.

Daniel

-- 

Sent by a consultant of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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