Commit-ID: 2530cd4f448935c74eeb49f29559589928e4b2f0 Gitweb: http://git.kernel.org/tip/2530cd4f448935c74eeb49f29559589928e4b2f0 Author: Liu, Chuansheng <chuansheng.liu@xxxxxxxxx> AuthorDate: Tue, 14 Aug 2012 06:55:01 +0000 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Wed, 22 Aug 2012 10:36:08 +0200 x86/fixup_irq: Use cpu_online_mask instead of cpu_all_mask When one CPU is going down and this CPU is the last one in irq affinity, current code is setting cpu_all_mask as the new affinity for that irq. But for some systems (such as in Medfield Android mobile) the firmware sends the interrupt to each CPU in the irq affinity mask, averaged, and cpu_all_mask includes all potential CPUs, i.e. offline ones as well. So replace cpu_all_mask with cpu_online_mask. Signed-off-by: liu chuansheng <chuansheng.liu@xxxxxxxxx> Acked-by: Yanmin Zhang <yanmin_zhang@xxxxxxxxxxxxxxx> Acked-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/27240C0AC20F114CBF8149A2696CBE4A137286@xxxxxxxxxxxxxxxxxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- arch/x86/kernel/irq.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 7ad683d..d44f782 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -270,7 +270,7 @@ void fixup_irqs(void) if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) { break_affinity = 1; - affinity = cpu_all_mask; + affinity = cpu_online_mask; } chip = irq_data_get_irq_chip(data); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html