alpha: use set_irq_chip and push down __do_IRQ to the machine types

Also kill superfluous IRQ_DISABLED initialization, since that's the
default state of the irq_desc[i].status field.

Tested-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c
index b2abe27a23cf..944b598b80e6 100644
--- a/arch/alpha/kernel/sys_sable.c
+++ b/arch/alpha/kernel/sys_sable.c
@@ -535,8 +535,9 @@ sable_lynx_init_irq(int nr_of_irqs)
         long i;
 
         for (i = 0; i < nr_of_irqs; ++i) {
-                irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL;
-                irq_desc[i].chip = &sable_lynx_irq_type;
+                irq_desc[i].status |= IRQ_LEVEL;
+                set_irq_chip_and_handler(i, &sable_lynx_irq_type,
+                        alpha_do_IRQ);
         }
 
         common_init_isa_dma();