Merge branch 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...

[linux-2.6-omap-h63xx.git] / kernel / irq / proc.c

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index a09dd29c2fd748dea1dd83fd00b73751aa649316..fac014a81b244f232409e5c717a2e1c76f7ac1ba 100644 (file)
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -19,7 +19,7 @@ static struct proc_dir_entry *root_irq_dir;
 
 static int irq_affinity_proc_show(struct seq_file *m, void *v)
 {
-       struct irq_desc *desc = irq_desc + (long)m->private;
+       struct irq_desc *desc = irq_to_desc((long)m->private);
        cpumask_t *mask = &desc->affinity;
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
@@ -43,7 +43,7 @@ static ssize_t irq_affinity_proc_write(struct file *file,
        cpumask_t new_value;
        int err;
 
-       if (!irq_desc[irq].chip->set_affinity || no_irq_affinity ||
+       if (!irq_to_desc(irq)->chip->set_affinity || no_irq_affinity ||
            irq_balancing_disabled(irq))
                return -EIO;
 
@@ -132,20 +132,20 @@ static const struct file_operations default_affinity_proc_fops = {
 static int irq_spurious_read(char *page, char **start, off_t off,
                                  int count, int *eof, void *data)
 {
-       struct irq_desc *d = &irq_desc[(long) data];
+       struct irq_desc *desc = irq_to_desc((long) data);
        return sprintf(page, "count %u\n"
                             "unhandled %u\n"
                             "last_unhandled %u ms\n",
-                       d->irq_count,
-                       d->irqs_unhandled,
-                       jiffies_to_msecs(d->last_unhandled));
+                       desc->irq_count,
+                       desc->irqs_unhandled,
+                       jiffies_to_msecs(desc->last_unhandled));
 }
 
 #define MAX_NAMELEN 128
 
 static int name_unique(unsigned int irq, struct irqaction *new_action)
 {
-       struct irq_desc *desc = irq_desc + irq;
+       struct irq_desc *desc = irq_to_desc(irq);
        struct irqaction *action;
        unsigned long flags;
        int ret = 1;
@@ -165,8 +165,9 @@ static int name_unique(unsigned int irq, struct irqaction *new_action)
 void register_handler_proc(unsigned int irq, struct irqaction *action)
 {
        char name [MAX_NAMELEN];
+       struct irq_desc *desc = irq_to_desc(irq);
 
-       if (!irq_desc[irq].dir || action->dir || !action->name ||
+       if (!desc->dir || action->dir || !action->name ||
                                        !name_unique(irq, action))
                return;
 
@@ -174,36 +175,34 @@ void register_handler_proc(unsigned int irq, struct irqaction *action)
        snprintf(name, MAX_NAMELEN, "%s", action->name);
 
        /* create /proc/irq/1234/handler/ */
-       action->dir = proc_mkdir(name, irq_desc[irq].dir);
+       action->dir = proc_mkdir(name, desc->dir);
 }
 
 #undef MAX_NAMELEN
 
 #define MAX_NAMELEN 10
 
-void register_irq_proc(unsigned int irq)
+void register_irq_proc(unsigned int irq, struct irq_desc *desc)
 {
        char name [MAX_NAMELEN];
        struct proc_dir_entry *entry;
 
-       if (!root_irq_dir ||
-               (irq_desc[irq].chip == &no_irq_chip) ||
-                       irq_desc[irq].dir)
+       if (!root_irq_dir || (desc->chip == &no_irq_chip) || desc->dir)
                return;
 
        memset(name, 0, MAX_NAMELEN);
        sprintf(name, "%d", irq);
 
        /* create /proc/irq/1234 */
-       irq_desc[irq].dir = proc_mkdir(name, root_irq_dir);
+       desc->dir = proc_mkdir(name, root_irq_dir);
 
 #ifdef CONFIG_SMP
        /* create /proc/irq/<irq>/smp_affinity */
-       proc_create_data("smp_affinity", 0600, irq_desc[irq].dir,
+       proc_create_data("smp_affinity", 0600, desc->dir,
                         &irq_affinity_proc_fops, (void *)(long)irq);
 #endif
 
-       entry = create_proc_entry("spurious", 0444, irq_desc[irq].dir);
+       entry = create_proc_entry("spurious", 0444, desc->dir);
        if (entry) {
                entry->data = (void *)(long)irq;
                entry->read_proc = irq_spurious_read;
@@ -214,8 +213,11 @@ void register_irq_proc(unsigned int irq)
 
 void unregister_handler_proc(unsigned int irq, struct irqaction *action)
 {
-       if (action->dir)
-               remove_proc_entry(action->dir->name, irq_desc[irq].dir);
+       if (action->dir) {
+               struct irq_desc *desc = irq_to_desc(irq);
+
+               remove_proc_entry(action->dir->name, desc->dir);
+       }
 }
 
 void register_default_affinity_proc(void)
@@ -228,7 +230,8 @@ void register_default_affinity_proc(void)
 
 void init_irq_proc(void)
 {
-       int i;
+       unsigned int irq;
+       struct irq_desc *desc;
 
        /* create /proc/irq */
        root_irq_dir = proc_mkdir("irq", NULL);
@@ -240,7 +243,7 @@ void init_irq_proc(void)
        /*
         * Create entries for all existing IRQs.
         */
-       for (i = 0; i < NR_IRQS; i++)
-               register_irq_proc(i);
+       for_each_irq_desc(irq, desc)
+               register_irq_proc(irq, desc);
 }