alpha: Use generic show_interrupts()

The only subtle difference is that alpha uses ACTUAL_NR_IRQS and
prints the IRQF_DISABLED flag.

Change the generic implementation to deal with ACTUAL_NR_IRQS if
defined.

The IRQF_DISABLED printing is pointless, as we nowadays run all
interrupts with irqs disabled.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index cc31bec..bd4160c 100644 (file)
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -11,6 +11,7 @@ config ALPHA
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_PROBE
        select AUTO_IRQ_AFFINITY if SMP
+       select GENERIC_IRQ_SHOW
        select GENERIC_HARDIRQS_NO_DEPRECATED
        help
          The Alpha is a 64-bit general-purpose processor designed and

diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index 1461d7c..381431a 100644 (file)
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -67,68 +67,21 @@ int irq_select_affinity(unsigned int irq)
 }
 #endif /* CONFIG_SMP */
 
-int
-show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
        int j;
-       int irq = *(loff_t *) v;
-       struct irqaction * action;
-       struct irq_desc *desc;
-       unsigned long flags;
 
 #ifdef CONFIG_SMP
-       if (irq == 0) {
-               seq_puts(p, "           ");
-               for_each_online_cpu(j)
-                       seq_printf(p, "CPU%d       ", j);
-               seq_putc(p, '\n');
-       }
-#endif
-
-       if (irq < ACTUAL_NR_IRQS) {
-               desc = irq_to_desc(irq);
-
-               if (!desc)
-                       return 0;
-
-               raw_spin_lock_irqsave(&desc->lock, flags);
-               action = desc->action;
-               if (!action) 
-                       goto unlock;
-               seq_printf(p, "%3d: ", irq);
-#ifndef CONFIG_SMP
-               seq_printf(p, "%10u ", kstat_irqs(irq));
-#else
-               for_each_online_cpu(j)
-                       seq_printf(p, "%10u ", kstat_irqs_cpu(irq, j));
+       seq_puts(p, "IPI: ");
+       for_each_online_cpu(j)
+               seq_printf(p, "%10lu ", cpu_data[j].ipi_count);
+       seq_putc(p, '\n');
 #endif
-               seq_printf(p, " %14s", irq_desc_get_chip(desc)->name);
-               seq_printf(p, "  %c%s",
-                       (action->flags & IRQF_DISABLED)?'+':' ',
-                       action->name);
-
-               for (action=action->next; action; action = action->next) {
-                       seq_printf(p, ", %c%s",
-                                 (action->flags & IRQF_DISABLED)?'+':' ',
-                                  action->name);
-               }
-
-               seq_putc(p, '\n');
-unlock:
-               raw_spin_unlock_irqrestore(&desc->lock, flags);
-       } else if (irq == ACTUAL_NR_IRQS) {
-#ifdef CONFIG_SMP
-               seq_puts(p, "IPI: ");
-               for_each_online_cpu(j)
-                       seq_printf(p, "%10lu ", cpu_data[j].ipi_count);
-               seq_putc(p, '\n');
-#endif
-               seq_puts(p, "PMI: ");
-               for_each_online_cpu(j)
-                       seq_printf(p, "%10lu ", per_cpu(irq_pmi_count, j));
-               seq_puts(p, "          Performance Monitoring\n");
-               seq_printf(p, "ERR: %10lu\n", irq_err_count);
-       }
+       seq_puts(p, "PMI: ");
+       for_each_online_cpu(j)
+               seq_printf(p, "%10lu ", per_cpu(irq_pmi_count, j));
+       seq_puts(p, "          Performance Monitoring\n");
+       seq_printf(p, "ERR: %10lu\n", irq_err_count);
        return 0;
 }
 

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 626d092..dd201bd 100644 (file)
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -364,6 +364,10 @@ int __weak arch_show_interrupts(struct seq_file *p, int prec)
        return 0;
 }
 
+#ifndef ACTUAL_NR_IRQS
+# define ACTUAL_NR_IRQS nr_irqs
+#endif
+
 int show_interrupts(struct seq_file *p, void *v)
 {
        static int prec;
@@ -373,10 +377,10 @@ int show_interrupts(struct seq_file *p, void *v)
        struct irqaction *action;
        struct irq_desc *desc;
 
-       if (i > nr_irqs)
+       if (i > ACTUAL_NR_IRQS)
                return 0;
 
-       if (i == nr_irqs)
+       if (i == ACTUAL_NR_IRQS)
                return arch_show_interrupts(p, prec);
 
        /* print header and calculate the width of the first column */