Commit 29ce3785 authored May 08, 2013 by James Bottomley Committed by Thomas Gleixner Jun 14, 2013

idle: Enable interrupts in the weak arch_cpu_idle() implementation



PARISC bootup triggers the warning at kernel/cpu/idle.c:96. That's
caused by the weak arch_cpu_idle() implementation, which is provided
to avoid that architectures implement idle_poll over and over.

The switchover to polling mode happens in the first call of the weak
arch_cpu_idle() implementation, but that code fails to reenable
interrupts and therefor triggers the warning.

Fix this by enabling interrupts in the weak arch_cpu_idle() code.

[ tglx: Made the changelog match the patch ]

Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1371236142.2726.43.camel@dabdike


Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

parent d7880812

kernel/cpu/idle.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -59,6 +59,7 @@ void __weak arch_cpu_idle_dead(void) { }
		void __weak arch_cpu_idle(void)
		{
		cpu_idle_force_poll = 1;
		local_irq_enable();
		}

		/*

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