2 files changed, 15 insertions, 20 deletions

diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 4d7294e5d982..bf29a8b2b7c5 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -8,6 +8,11 @@ config ARM_GIC
         select IRQ_DOMAIN_HIERARCHY
         select MULTI_IRQ_HANDLER
 
+config ARM_GIC_MAX_NR
+        int
+        default 2 if ARCH_REALVIEW
+        default 1
+
 config ARM_GIC_V2M
         bool
         depends on ARM_GIC
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 7f5f91984c1b..fcbe0b90870d 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -100,11 +100,7 @@ static u8 gic_cpu_map[NR_GIC_CPU_IF] __read_mostly;
 
 static struct static_key supports_deactivate = STATIC_KEY_INIT_TRUE;
 
-#ifndef MAX_GIC_NR
-#define MAX_GIC_NR      1
-#endif
-
-static struct gic_chip_data gic_data[MAX_GIC_NR] __read_mostly;
+static struct gic_chip_data gic_data[CONFIG_ARM_GIC_MAX_NR] __read_mostly;
 
 #ifdef CONFIG_GIC_NON_BANKED
 static void __iomem *gic_get_percpu_base(union gic_base *base)
@@ -417,8 +413,7 @@ static struct irq_chip gic_eoimode1_chip = {
 
 void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq)
 {
-        if (gic_nr >= MAX_GIC_NR)
-                BUG();
+        BUG_ON(gic_nr >= CONFIG_ARM_GIC_MAX_NR);
         irq_set_chained_handler_and_data(irq, gic_handle_cascade_irq,
                                          &gic_data[gic_nr]);
 }
@@ -524,7 +519,7 @@ int gic_cpu_if_down(unsigned int gic_nr)
         void __iomem *cpu_base;
         u32 val = 0;
 
-        if (gic_nr >= MAX_GIC_NR)
+        if (gic_nr >= CONFIG_ARM_GIC_MAX_NR)
                 return -EINVAL;
 
         cpu_base = gic_data_cpu_base(&gic_data[gic_nr]);
@@ -548,8 +543,7 @@ static void gic_dist_save(unsigned int gic_nr)
         void __iomem *dist_base;
         int i;
 
-        if (gic_nr >= MAX_GIC_NR)
-                BUG();
+        BUG_ON(gic_nr >= CONFIG_ARM_GIC_MAX_NR);
 
         gic_irqs = gic_data[gic_nr].gic_irqs;
         dist_base = gic_data_dist_base(&gic_data[gic_nr]);
@@ -587,8 +581,7 @@ static void gic_dist_restore(unsigned int gic_nr)
         unsigned int i;
         void __iomem *dist_base;
 
-        if (gic_nr >= MAX_GIC_NR)
-                BUG();
+        BUG_ON(gic_nr >= CONFIG_ARM_GIC_MAX_NR);
 
         gic_irqs = gic_data[gic_nr].gic_irqs;
         dist_base = gic_data_dist_base(&gic_data[gic_nr]);
@@ -634,8 +627,7 @@ static void gic_cpu_save(unsigned int gic_nr)
         void __iomem *dist_base;
         void __iomem *cpu_base;
 
-        if (gic_nr >= MAX_GIC_NR)
-                BUG();
+        BUG_ON(gic_nr >= CONFIG_ARM_GIC_MAX_NR);
 
         dist_base = gic_data_dist_base(&gic_data[gic_nr]);
         cpu_base = gic_data_cpu_base(&gic_data[gic_nr]);
@@ -664,8 +656,7 @@ static void gic_cpu_restore(unsigned int gic_nr)
         void __iomem *dist_base;
         void __iomem *cpu_base;
 
-        if (gic_nr >= MAX_GIC_NR)
-                BUG();
+        BUG_ON(gic_nr >= CONFIG_ARM_GIC_MAX_NR);
 
         dist_base = gic_data_dist_base(&gic_data[gic_nr]);
         cpu_base = gic_data_cpu_base(&gic_data[gic_nr]);
@@ -703,7 +694,7 @@ static int gic_notifier(struct notifier_block *self, unsigned long cmd,	void *v)
 {
         int i;
 
-        for (i = 0; i < MAX_GIC_NR; i++) {
+        for (i = 0; i < CONFIG_ARM_GIC_MAX_NR; i++) {
 #ifdef CONFIG_GIC_NON_BANKED
                 /* Skip over unused GICs */
                 if (!gic_data[i].get_base)
@@ -835,8 +826,7 @@ void gic_migrate_target(unsigned int new_cpu_id)
         int i, ror_val, cpu = smp_processor_id();
         u32 val, cur_target_mask, active_mask;
 
-        if (gic_nr >= MAX_GIC_NR)
-                BUG();
+        BUG_ON(gic_nr >= CONFIG_ARM_GIC_MAX_NR);
 
         dist_base = gic_data_dist_base(&gic_data[gic_nr]);
         if (!dist_base)
@@ -1035,7 +1025,7 @@ static void __init __gic_init_bases(unsigned int gic_nr, int irq_start,
         struct gic_chip_data *gic;
         int gic_irqs, irq_base, i;
 
-        BUG_ON(gic_nr >= MAX_GIC_NR);
+        BUG_ON(gic_nr >= CONFIG_ARM_GIC_MAX_NR);
 
         gic_check_cpu_features();