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authorJames Bottomley <JBottomley@Parallels.com>2013-05-08 14:05:34 -0700
committerThomas Gleixner <tglx@linutronix.de>2013-06-14 23:01:05 +0200
commit29ce3785b22da47c49f4ef6e14b9014fa5dee261 (patch)
tree7280fe879b7a63a9e66d105ef31b4ad2e28ad99a /kernel
parentd7880812b3594d3c6dcbe3cfd71dabb17347d082 (diff)
downloadvexpress-lsk-29ce3785b22da47c49f4ef6e14b9014fa5dee261.tar.gz
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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/cpu/idle.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
index bf2ee1aafa0..e695c0a0bcb 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();
}
/*