ARM: EXYNOS4: Fix routing timer interrupt to offline CPU
authorKukjin Kim <kgene.kim@samsung.com>
Wed, 24 Aug 2011 11:05:21 +0000 (20:05 +0900)
committerKukjin Kim <kgene.kim@samsung.com>
Thu, 15 Sep 2011 04:59:58 +0000 (13:59 +0900)
The commit 5dfc54e087c15f823ee9b6541d2f0f314e69cbed
("ARM: GIC: avoid routing interrupts to offline CPUs")
prevents routing interrupts to offline CPUs. But in
case of timer on EXYNOS4, the irq_set_affinity() method
is called in percpu_timer_setup() before CPU1 becomes
online. So this patch fixes routing timer interrupt to
offline CPU.

Reported-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
arch/arm/mach-exynos4/platsmp.c

index 7c2282c..df6ef1b 100644 (file)
@@ -106,6 +106,8 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
         */
        spin_lock(&boot_lock);
        spin_unlock(&boot_lock);
+
+       set_cpu_online(cpu, true);
 }
 
 int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)