irqchip/mips-gic: Clear percpu_masks correctly when mapping

When setting the mapping for a hwirq, make sure we clear percpu_masks for
all other cpus in case it was set previously.

Signed-off-by: Qais Yousef <qais.yousef@imgtec.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: <jason@lakedaemon.net>
Cc: <marc.zyngier@arm.com>
Cc: <jiang.liu@linux.intel.com>
Cc: <linux-mips@linux-mips.org>
Cc: <lisa.parratt@imgtec.com>
Cc: Qais Yousef <qsyousef@gmail.com>
Link: http://lkml.kernel.org/r/1449580830-23652-16-git-send-email-qais.yousef@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 1fe73a1..83395bf 100644 (file)
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -773,6 +773,7 @@ static int gic_shared_irq_domain_map(struct irq_domain *d, unsigned int virq,
 {
        int intr = GIC_HWIRQ_TO_SHARED(hw);
        unsigned long flags;
+       int i;
 
        irq_set_chip_and_handler(virq, &gic_level_irq_controller,
                                 handle_level_irq);
@@ -780,6 +781,8 @@ static int gic_shared_irq_domain_map(struct irq_domain *d, unsigned int virq,
        spin_lock_irqsave(&gic_lock, flags);
        gic_map_to_pin(intr, gic_cpu_pin);
        gic_map_to_vpe(intr, vpe);
+       for (i = 0; i < gic_vpes; i++)
+               clear_bit(intr, pcpu_masks[i].pcpu_mask);
        set_bit(intr, pcpu_masks[vpe].pcpu_mask);
        spin_unlock_irqrestore(&gic_lock, flags);