powerpc/cpumask: Convert fixup_irqs to new cpumask API

Use new cpumask_* functions, and dynamically allocate cpumask in fixup_irqs.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

2 files changed, 12 insertions, 9 deletions

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 64f6f2031c22..250ee2ebf288 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -290,30 +290,33 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-void fixup_irqs(cpumask_t map)
+void fixup_irqs(const struct cpumask *map)
 {
         struct irq_desc *desc;
         unsigned int irq;
         static int warned;
+        cpumask_var_t mask;
 
-        for_each_irq(irq) {
-                cpumask_t mask;
+        alloc_cpumask_var(&mask, GFP_KERNEL);
 
+        for_each_irq(irq) {
                 desc = irq_to_desc(irq);
                 if (desc && desc->status & IRQ_PER_CPU)
                         continue;
 
-                cpumask_and(&mask, desc->affinity, &map);
-                if (any_online_cpu(mask) == NR_CPUS) {
+                cpumask_and(mask, desc->affinity, map);
+                if (cpumask_any(mask) >= nr_cpu_ids) {
                         printk("Breaking affinity for irq %i\n", irq);
-                        mask = map;
+                        cpumask_copy(mask, map);
                 }
                 if (desc->chip->set_affinity)
-                        desc->chip->set_affinity(irq, &mask);
+                        desc->chip->set_affinity(irq, mask);
                 else if (desc->action && !(warned++))
                         printk("Cannot set affinity for irq %i\n", irq);
         }
 
+        free_cpumask_var(mask);
+
         local_irq_enable();
         mdelay(1);
         local_irq_disable();
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 17523a0abf66..62e82c25c583 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -313,7 +313,7 @@ int generic_cpu_disable(void)
         set_cpu_online(cpu, false);
 #ifdef CONFIG_PPC64
         vdso_data->processorCount--;
-        fixup_irqs(cpu_online_map);
+        fixup_irqs(cpu_online_mask);
 #endif
         return 0;
 }
@@ -333,7 +333,7 @@ int generic_cpu_enable(unsigned int cpu)
                 cpu_relax();
 
 #ifdef CONFIG_PPC64
-        fixup_irqs(cpu_online_map);
+        fixup_irqs(cpu_online_mask);
         /* counter the irq disable in fixup_irqs */
         local_irq_enable();
 #endif