Messages in this thread | | | Date | Wed, 29 Jan 2014 11:02:28 -0800 | Subject | Re: [PATCH v2 5/6] X86: remove redundant cpuidle_idle_call() | From | Olof Johansson <> |
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Hi,
On Wed, Jan 29, 2014 at 9:45 AM, Nicolas Pitre <nicolas.pitre@linaro.org> wrote: > The core idle loop now takes care of it. > > Signed-off-by: Nicolas Pitre <nico@linaro.org> > Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> > --- > arch/x86/kernel/process.c | 5 +---- > 1 file changed, 1 insertion(+), 4 deletions(-) > > diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c > index 3fb8d95ab8..4505e2a950 100644 > --- a/arch/x86/kernel/process.c > +++ b/arch/x86/kernel/process.c > @@ -298,10 +298,7 @@ void arch_cpu_idle_dead(void) > */ > void arch_cpu_idle(void) > { > - if (cpuidle_idle_call()) > - x86_idle(); > - else > - local_irq_enable(); > + x86_idle();
You're taking out the local_irq_enable() here but I don't see the equivalent of adding it back in the 1/6 patch that moves the cpuidle_idle_call() up to common code. It seems that one of the call paths through cpuidle_idle_call() don't re-enable it on its own.
Even if this is the right thing to do, why it's OK to do so should probably be documented in the patch description.
-Olof
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