[PATCH] genirq: add genirq sw IRQ-retrigger

Enable platforms that do not have a hardware-assisted hardirq-resend mechanism
to resend them via a softirq-driven IRQ emulation mechanism.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 9 deletions

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 19b438e09f12..cffde4843897 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -118,15 +118,7 @@ void enable_irq(unsigned int irq)
                 WARN_ON(1);
                 break;
         case 1: {
-                unsigned int status = desc->status & ~IRQ_DISABLED;
-
-                desc->status = status;
-                if ((status & (IRQ_PENDING | IRQ_REPLAY)) == IRQ_PENDING) {
-                        desc->status = status | IRQ_REPLAY;
-                        if (desc->chip && desc->chip->retrigger)
-                                desc->chip->retrigger(irq);
-                }
-                desc->chip->enable(irq);
+                check_irq_resend(desc, irq);
                 /* fall-through */
         }
         default: