genirq: consolidate nr_irqs and for_each_irq_desc()

Move all of those to linux/irq.h where they belong.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

include/linux/interrupt.h

@@ -15,15 +15,6 @@
 #include <asm/ptrace.h>
 #include <asm/system.h>
 
-#ifndef CONFIG_GENERIC_HARDIRQS
-# define for_each_irq_desc(irq, desc)		\
-	for (irq = 0; irq < nr_irqs; irq++)
-
-# define nr_irqs		NR_IRQS
-#else
-extern int nr_irqs;
-#endif
-
 /*
  * These correspond to the IORESOURCE_IRQ_* defines in
  * linux/ioport.h to select the interrupt line behaviour.  When

include/linux/irq.h

@@ -11,6 +11,18 @@
 
 #include <linux/smp.h>
 
+#ifndef CONFIG_GENERIC_HARDIRQS
+# define nr_irqs		NR_IRQS
+
+# define for_each_irq_desc(irq, desc)		\
+	for (irq = 0; irq < nr_irqs; irq++)
+#else
+extern int nr_irqs;
+
+# define for_each_irq_desc(irq, desc)		\
+	for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++)
+#endif
+
 #ifndef CONFIG_S390
 
 #include <linux/linkage.h>
@@ -204,11 +216,6 @@ extern struct irq_desc irq_desc[NR_IRQS];
 extern struct irq_desc *irq_desc;
 #endif
 
-#ifdef CONFIG_GENERIC_HARDIRQS
-#define for_each_irq_desc(irq, desc)		\
-	for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc = &irq_desc[irq])
-#endif
-
 #else
 
 extern struct irq_desc *sparse_irqs;