generic: add irq_desc in function in parameter

So we could remove some duplicated calling to irq_desc

v2: make sure irq_desc in  init/main.c is not used without generic_hardirqs

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 30 insertions, 0 deletions

diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 8e55dbe50afc..e1d787e9169b 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -197,6 +197,21 @@ struct irq_desc *irq_to_desc(unsigned int irq)
          *  we run out of pre-allocate ones, allocate more
          */
         printk(KERN_DEBUG "try to get more irq_desc %d\n", nr_irq_desc);
+        {
+                /* double check if some one mess up the list */
+                struct irq_desc *desc;
+                int count = 0;
+
+                desc = &sparse_irqs[0];
+                while (desc) {
+                        printk(KERN_DEBUG "found irq_desc for irq %d\n", desc->irq);
+                        if (desc->next)
+                                printk(KERN_DEBUG "found irq_desc for irq %d and next will be irq %d\n", desc->irq, desc->next->irq);
+                        desc = desc->next;
+                        count++;
+                }
+                printk(KERN_DEBUG "all preallocted %d\n", count);
+        }
 
         total_bytes = sizeof(struct irq_desc) * nr_irq_desc;
         if (after_bootmem)
@@ -221,6 +236,21 @@ struct irq_desc *irq_to_desc(unsigned int irq)
 
         desc->irq = irq;
         desc_pri->next = desc;
+        {
+                /* double check if some one mess up the list */
+                struct irq_desc *desc;
+                int count = 0;
+
+                desc = &sparse_irqs[0];
+                while (desc) {
+                        printk(KERN_DEBUG "1 found irq_desc for irq %d\n", desc->irq);
+                        if (desc->next)
+                                printk(KERN_DEBUG "1 found irq_desc for irq %d and next will be irq %d\n", desc->irq, desc->next->irq);
+                        desc = desc->next;
+                        count++;
+                }
+                printk(KERN_DEBUG "1 all preallocted %d\n", count);
+        }
 
         return desc;
 }