Commit-ID: 29ce3785b22da47c49f4ef6e14b9014fa5dee261
Gitweb: http://git.kernel.org/tip/29ce3785b22da47c49f4ef6e14b9014fa5dee261
Author: James Bottomley <JBottomley@xxxxxxxxxxxxx>
AuthorDate: Wed, 8 May 2013 14:05:34 -0700
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Fri, 14 Jun 2013 23:01:05 +0200
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@xxxxxxxxxxxxx>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@xxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1371236142.2726.43.camel@dabdike
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
kernel/cpu/idle.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
index bf2ee1a..e695c0a 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();
}
/*
--
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