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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>
This commit is contained in:
James Bottomley 2013-05-08 14:05:34 -07:00 committed by Thomas Gleixner
parent d7880812b3
commit 29ce3785b2
1 changed files with 1 additions and 0 deletions
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kernel/cpu/idle.c
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@ -59,6 +59,7 @@ void __weak arch_cpu_idle_dead(void) { }
void __weak arch_cpu_idle(void) void __weak arch_cpu_idle(void)
{ {
cpu_idle_force_poll = 1; cpu_idle_force_poll = 1;
local_irq_enable();
} }
/* /*