From 29ce3785b22da47c49f4ef6e14b9014fa5dee261 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 8 May 2013 14:05:34 -0700 Subject: 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 Reviewed-by: Srivatsa S. Bhat Link: http://lkml.kernel.org/r/1371236142.2726.43.camel@dabdike Signed-off-by: Thomas Gleixner --- kernel/cpu/idle.c | 1 + 1 file changed, 1 insertion(+) (limited to 'kernel') diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c index bf2ee1aafa0e..e695c0a0bcb5 100644 --- a/kernel/cpu/idle.c +++ b/kernel/cpu/idle.c @@ -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(); } /* -- cgit v1.2.3