sparc64: Convert timers to user timer_setup()

Switch to using the new timer_setup() and from_timer()
in LDOM Virtual I/O handshake.

Cc: Kees Cook <[e-mail]>
Signed-off-by: Allen Pais <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

arch/sparc/kernel/viohs.c

···
 }
 EXPORT_SYMBOL(vio_port_up);
 
-static void vio_port_timer(unsigned long _arg)
+static void vio_port_timer(struct timer_list *t)
 {
-	struct vio_driver_state *vio = (struct vio_driver_state *) _arg;
+	struct vio_driver_state *vio = from_timer(vio, t, timer);
 
 	vio_port_up(vio);
 }
···
 
 	vio->ops = ops;
 
-	setup_timer(&vio->timer, vio_port_timer, (unsigned long) vio);
+	timer_setup(&vio->timer, vio_port_timer, 0);
 
 	return 0;
 }