[PARPORT] Kill useful 'irq' arg from parport_{generic_irq,ieee1284_interrupt}

parport_ieee1284_interrupt() was not using its first arg at all.
Delete.

parport_generic_irq()'s second arg makes its first arg completely
redundant.  Delete, and use port->irq in the one place where we actually
need it.

Also, s/__inline__/inline/ to make the code look nicer.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/parport/parport_mfc3.c b/drivers/parport/parport_mfc3.c
index 77726fc..6dec9ba 100644
--- a/drivers/parport/parport_mfc3.c
+++ b/drivers/parport/parport_mfc3.c
@@ -219,7 +219,7 @@
 		if (this_port[i] != NULL)
 			if (pia(this_port[i])->crb & 128) { /* Board caused interrupt */
 				dummy = pia(this_port[i])->pprb; /* clear irq bit */
-				parport_generic_irq(irq, this_port[i]);
+				parport_generic_irq(this_port[i]);
 			}
 	return IRQ_HANDLED;
 }