linux-kernel - Re: [PATCH 2/2] ARM64: powernv: remove redundant cpuidle_idle

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Message-ID: <alpine.LFD.2.11.1402061607290.1906@knanqh.ubzr>
Date:	Thu, 6 Feb 2014 16:09:08 +0000 (GMT)
From:	Nicolas Pitre <nicolas.pitre@...aro.org>
To:	Preeti U Murthy <preeti@...ux.vnet.ibm.com>
cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linuxppc-dev@...ts.ozlabs.org, linux-pm@...r.kernel.org,
	linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH 2/2] ARM64: powernv: remove redundant
 cpuidle_idle_call()

On Thu, 6 Feb 2014, Preeti U Murthy wrote:

> Hi Nicolas,
> 
> powernv in the subject of the patch?

Crap.  You're right.

That's what you get when posting patches while attending a meeting.



> 
> Regards
> Preeti U Murthy
> On 02/06/2014 07:46 PM, Nicolas Pitre wrote:
> > The core idle loop now takes care of it.
> > 
> > Signed-off-by: Nicolas Pitre <nico@...aro.org>
> > ---
> >  arch/arm64/kernel/process.c | 7 ++-----
> >  1 file changed, 2 insertions(+), 5 deletions(-)
> > 
> > diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
> > index 1c0a9be2ff..9cce0098f4 100644
> > --- a/arch/arm64/kernel/process.c
> > +++ b/arch/arm64/kernel/process.c
> > @@ -33,7 +33,6 @@
> >  #include <linux/kallsyms.h>
> >  #include <linux/init.h>
> >  #include <linux/cpu.h>
> > -#include <linux/cpuidle.h>
> >  #include <linux/elfcore.h>
> >  #include <linux/pm.h>
> >  #include <linux/tick.h>
> > @@ -94,10 +93,8 @@ void arch_cpu_idle(void)
> >  	 * This should do all the clock switching and wait for interrupt
> >  	 * tricks
> >  	 */
> > -	if (cpuidle_idle_call()) {
> > -		cpu_do_idle();
> > -		local_irq_enable();
> > -	}
> > +	cpu_do_idle();
> > +	local_irq_enable();
> >  }
> > 
> >  #ifdef CONFIG_HOTPLUG_CPU
> > 
> 
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