Doug / smarc-fsl-linux-kernel | Embedian Git Server

Commit 29ce3785b22da47c49f4ef6e14b9014fa5dee261

Authored by James Bottomley 2013-05-09 05:05:34 +0800

Committed by Thomas Gleixner 2013-06-15 05:01:05 +0800

Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches

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>

Showing 1 changed file with 1 additions and 0 deletions Side-by-side Diff

kernel/cpu/idle.c

kernel/cpu/idle.c

Diff comments View file @ 29ce378

...	...	@@ -59,6 +59,7 @@
59	59	void __weak arch_cpu_idle(void)
60	60	{
61	61	cpu_idle_force_poll = 1;
	62	+ local_irq_enable();
62	63	}
63	64
64	65	/*