[PATCH] request_irq(): remove warnings from irq probing

- Add new SA_PROBEIRQ which suppresses the new sharing-mismatch warning.
  Some drivers like to use request_irq() to find an unused interrupt slot.

- Use it in i82365.c

- Kill unused SA_PROBE.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index ac766ad573e8..1279e3499534 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -246,8 +246,10 @@ int setup_irq(unsigned int irq, struct irqaction * new)
 
 mismatch:
         spin_unlock_irqrestore(&desc->lock, flags);
-        printk(KERN_ERR "%s: irq handler mismatch\n", __FUNCTION__);
-        dump_stack();
+        if (!(new->flags & SA_PROBEIRQ)) {
+                printk(KERN_ERR "%s: irq handler mismatch\n", __FUNCTION__);
+                dump_stack();
+        }
         return -EBUSY;
 }