sparseirq: move kstat_irqs from kstat to irq_desc - fix

fix non-sparseirq architectures.
Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

include/linux/irq.h

@@ -161,8 +161,6 @@ struct irq_desc {
 #endif
 #ifdef CONFIG_HAVE_DYN_ARRAY
 	unsigned int            *kstat_irqs;
-#else
-	unsigned int            kstat_irqs[NR_CPUS];
 #endif
 #if defined(CONFIG_INTR_REMAP) && defined(CONFIG_HAVE_SPARSE_IRQ)
        struct irq_2_iommu      *irq_2_iommu;
@@ -219,8 +217,10 @@ extern struct irq_desc *sparse_irqs;
 
 #endif
 
+#ifdef CONFIG_HAVE_DYN_ARRAY
 #define kstat_irqs_this_cpu(DESC) \
 	((DESC)->kstat_irqs[smp_processor_id()])
+#endif
 
 /*
  * Migration helpers for obsolete names, they will go away:

include/linux/kernel_stat.h

@@ -28,7 +28,7 @@ struct cpu_usage_stat {
 
 struct kernel_stat {
 	struct cpu_usage_stat	cpustat;
-#ifndef CONFIG_GENERIC_HARDIRQS
+#ifndef CONFIG_HAVE_DYN_ARRAY
        unsigned int irqs[NR_IRQS];
 #endif
 };
@@ -41,7 +41,13 @@ DECLARE_PER_CPU(struct kernel_stat, kstat);
 
 extern unsigned long long nr_context_switches(void);
 
-#ifndef CONFIG_GENERIC_HARDIRQS
+#ifndef CONFIG_HAVE_DYN_ARRAY
+#define kstat_irqs_this_cpu(irq) \
+	(kstat_this_cpu.irqs[irq])
+#endif
+
+
+#ifndef CONFIG_HAVE_DYN_ARRAY
 static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
 {
        return kstat_cpu(cpu).irqs[irq];

kernel/irq/chip.c

@@ -327,7 +327,11 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc)
 	if (unlikely(desc->status & IRQ_INPROGRESS))
 		goto out_unlock;
 	desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
+#ifdef CONFIG_HAVE_DYN_ARRAY
 	kstat_irqs_this_cpu(desc)++;
+#else
+	kstat_irqs_this_cpu(irq)++;
+#endif
 
 	action = desc->action;
 	if (unlikely(!action || (desc->status & IRQ_DISABLED)))
@@ -368,7 +372,11 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
 	if (unlikely(desc->status & IRQ_INPROGRESS))
 		goto out_unlock;
 	desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
+#ifdef CONFIG_HAVE_DYN_ARRAY
 	kstat_irqs_this_cpu(desc)++;
+#else
+	kstat_irqs_this_cpu(irq)++;
+#endif
 
 	/*
 	 * If its disabled or no action available
@@ -415,7 +423,11 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
 		goto out;
 
 	desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
+#ifdef CONFIG_HAVE_DYN_ARRAY
 	kstat_irqs_this_cpu(desc)++;
+#else
+	kstat_irqs_this_cpu(irq)++;
+#endif
 
 	/*
 	 * If its disabled or no action available
@@ -479,8 +491,11 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
 		mask_ack_irq(desc, irq);
 		goto out_unlock;
 	}
-
+#ifdef CONFIG_HAVE_DYN_ARRAY
 	kstat_irqs_this_cpu(desc)++;
+#else
+	kstat_irqs_this_cpu(irq)++;
+#endif
 
 	/* Start handling the irq */
 	desc->chip->ack(irq);
@@ -535,7 +550,11 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
 	irqreturn_t action_ret;
 
+#ifdef CONFIG_HAVE_DYN_ARRAY
 	kstat_irqs_this_cpu(desc)++;
+#else
+	kstat_irqs_this_cpu(irq)++;
+#endif
 
 	if (desc->chip->ack)
 		desc->chip->ack(irq);

kernel/irq/handle.c

@@ -34,7 +34,11 @@ void
 handle_bad_irq(unsigned int irq, struct irq_desc *desc)
 {
 	print_irq_desc(irq, desc);
+#ifdef CONFIG_HAVE_DYN_ARRAY
 	kstat_irqs_this_cpu(desc)++;
+#else
+	kstat_irqs_this_cpu(irq)++;
+#endif
 	ack_bad_irq(irq);
 }
 
@@ -401,7 +405,11 @@ unsigned int __do_IRQ(unsigned int irq)
 	struct irqaction *action;
 	unsigned int status;
 
+#ifdef CONFIG_HAVE_DYN_ARRAY
 	kstat_irqs_this_cpu(desc)++;
+#else
+	kstat_irqs_this_cpu(irq)++;
+#endif
 	if (CHECK_IRQ_PER_CPU(desc->status)) {
 		irqreturn_t action_ret;
 
@@ -501,10 +509,12 @@ void early_init_irq_lock_class(void)
 }
 #endif
 
+#ifdef CONFIG_HAVE_DYN_ARRAY
 unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
 	return desc->kstat_irqs[cpu];
 }
+#endif
 EXPORT_SYMBOL(kstat_irqs_cpu);