Commit-ID: 29ce3785b22da47c49f4ef6e14b9014fa5dee261 Gitweb: http://git.kernel.org/tip/29ce3785b22da47c49f4ef6e14b9014fa5dee261 Author: James Bottomley <jbottom...@parallels.com> AuthorDate: Wed, 8 May 2013 14:05:34 -0700 Committer: Thomas Gleixner <t...@linutronix.de> 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 <jbottom...@parallels.com> Reviewed-by: Srivatsa S. Bhat <srivatsa.b...@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1371236142.2726.43.camel@dabdike Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- 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(); } /* -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
