irq: change references from NR_IRQS to nr_irqs

Impact: preparation, cleanup, add KERN_INFO printk

Modify references from NR_IRQS to nr_irqs as the later will become
variable-sized based on nr_cpu_ids when CONFIG_SPARSE_IRQS=y.

Signed-off-by: Mike Travis <travis@sgi.com>

2 files changed, 10 insertions, 6 deletions

diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 1337eab60ecc..ae80638012de 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -3183,7 +3183,7 @@ unsigned int create_irq_nr(unsigned int irq_want)
 
         irq = 0;
         spin_lock_irqsave(&vector_lock, flags);
-        for (new = irq_want; new < NR_IRQS; new++) {
+        for (new = irq_want; new < nr_irqs; new++) {
                 if (platform_legacy_irq(new))
                         continue;
 
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index f01c0a30cb42..790c5fa7ea39 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -132,6 +132,8 @@ int __init early_irq_init(void)
         int legacy_count;
         int i;
 
+        printk(KERN_INFO "NR_IRQS:%d nr_irqs:%d\n", NR_IRQS, nr_irqs);
+
         desc = irq_desc_legacy;
         legacy_count = ARRAY_SIZE(irq_desc_legacy);
 
@@ -143,7 +145,7 @@ int __init early_irq_init(void)
                 irq_desc_ptrs[i] = desc + i;
         }
 
-        for (i = legacy_count; i < NR_IRQS; i++)
+        for (i = legacy_count; i < nr_irqs; i++)
                 irq_desc_ptrs[i] = NULL;
 
         return arch_early_irq_init();
@@ -151,7 +153,7 @@ int __init early_irq_init(void)
 
 struct irq_desc *irq_to_desc(unsigned int irq)
 {
-        return (irq < NR_IRQS) ? irq_desc_ptrs[irq] : NULL;
+        return (irq < nr_irqs) ? irq_desc_ptrs[irq] : NULL;
 }
 
 struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu)
@@ -160,9 +162,9 @@ struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu)
         unsigned long flags;
         int node;
 
-        if (irq >= NR_IRQS) {
-                printk(KERN_WARNING "irq >= NR_IRQS in irq_to_desc_alloc: %d %d\n",
-                                irq, NR_IRQS);
+        if (irq >= nr_irqs) {
+                printk(KERN_WARNING "irq >= nr_irqs in irq_to_desc_alloc: %d %d\n",
+                                irq, nr_irqs);
                 WARN_ON(1);
                 return NULL;
         }
@@ -214,6 +216,8 @@ int __init early_irq_init(void)
         int count;
         int i;
 
+        printk(KERN_INFO "NR_IRQS:%d\n", NR_IRQS);
+
         desc = irq_desc;
         count = ARRAY_SIZE(irq_desc);