sched: dynticks idle load balancing

[powerpc.git] / kernel / irq / autoprobe.c

diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c
index ed98c7d..533068c 100644 (file)
--- a/kernel/irq/autoprobe.c
+++ b/kernel/irq/autoprobe.c
@@ -11,6 +11,8 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 
+#include "internals.h"
+
 /*
  * Autodetection depends on the fact that any interrupt that
  * comes in on to an unassigned handler will get stuck with
@@ -40,8 +42,21 @@ unsigned long probe_irq_on(void)
                desc = irq_desc + i;
 
                spin_lock_irq(&desc->lock);
-               if (!desc->action && !(desc->status & IRQ_NOPROBE))
+               if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
+                       /*
+                        * An old-style architecture might still have
+                        * the handle_bad_irq handler there:
+                        */
+                       compat_irq_chip_set_default_handler(desc);
+
+                       /*
+                        * Some chips need to know about probing in
+                        * progress:
+                        */
+                       if (desc->chip->set_type)
+                               desc->chip->set_type(i, IRQ_TYPE_PROBE);
                        desc->chip->startup(i);
+               }
                spin_unlock_irq(&desc->lock);
        }