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| author | James Bottomley <JBottomley@Parallels.com> | 2013-05-08 14:05:34 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-06-14 23:01:05 +0200 |
| commit | 29ce3785b22da47c49f4ef6e14b9014fa5dee261 (patch) | |
| tree | 7280fe879b7a63a9e66d105ef31b4ad2e28ad99a | |
| parent | d7880812b3594d3c6dcbe3cfd71dabb17347d082 (diff) | |
| download | linux-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>
| -rw-r--r-- | kernel/cpu/idle.c | 1 |
1 files changed, 1 insertions, 0 deletions
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(); } /* |