Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[karo-tx-linux.git] / arch / x86 / kernel / apic / io_apic.c

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index b5a0e3c5e930e0f1746cb8e4b12709709f687430..f25321894ad294278c20d5ba7b4076ce2353a8fb 100644 (file)
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2547,7 +2547,9 @@ void __init setup_ioapic_dest(void)
                        mask = apic->target_cpus();
 
                chip = irq_data_get_irq_chip(idata);
-               chip->irq_set_affinity(idata, mask, false);
+               /* Might be lapic_chip for irq 0 */
+               if (chip->irq_set_affinity)
+                       chip->irq_set_affinity(idata, mask, false);
        }
 }
 #endif
@@ -2907,6 +2909,7 @@ int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
        struct irq_data *irq_data;
        struct mp_chip_data *data;
        struct irq_alloc_info *info = arg;
+       unsigned long flags;
 
        if (!info || nr_irqs > 1)
                return -EINVAL;
@@ -2939,11 +2942,14 @@ int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
 
        cfg = irqd_cfg(irq_data);
        add_pin_to_irq_node(data, ioapic_alloc_attr_node(info), ioapic, pin);
+
+       local_irq_save(flags);
        if (info->ioapic_entry)
                mp_setup_entry(cfg, data, info->ioapic_entry);
        mp_register_handler(virq, data->trigger);
        if (virq < nr_legacy_irqs())
                legacy_pic->mask(virq);
+       local_irq_restore(flags);
 
        apic_printk(APIC_VERBOSE, KERN_DEBUG
                    "IOAPIC[%d]: Set routing entry (%d-%d -> 0x%x -> IRQ %d Mode:%i Active:%i Dest:%d)\n",