treewide: Switch DEFINE_TIMER callbacks to struct timer_list *

This changes all DEFINE_TIMER() callbacks to use a struct timer_list
pointer instead of unsigned long. Since the data argument has already been
removed, none of these callbacks are using their argument currently, so
this renames the argument to "unused".

Done using the following semantic patch:

@match_define_timer@
declarer name DEFINE_TIMER;
identifier _timer, _callback;
@@

 DEFINE_TIMER(_timer, _callback);

@change_callback depends on match_define_timer@
identifier match_define_timer._callback;
type _origtype;
identifier _origarg;
@@

 void
-_callback(_origtype _origarg)
+_callback(struct timer_list *unused)
 { ... }

Signed-off-by: Kees Cook <keescook@chromium.org>

drivers/atm/iphase.c

@@ -75,7 +75,7 @@ static void desc_dbg(IADEV *iadev);
 static IADEV *ia_dev[8];
 static struct atm_dev *_ia_dev[8];
 static int iadev_count;
-static void ia_led_timer(unsigned long arg);
+static void ia_led_timer(struct timer_list *unused);
 static DEFINE_TIMER(ia_timer, ia_led_timer);
 static int IA_TX_BUF = DFL_TX_BUFFERS, IA_TX_BUF_SZ = DFL_TX_BUF_SZ;
 static int IA_RX_BUF = DFL_RX_BUFFERS, IA_RX_BUF_SZ = DFL_RX_BUF_SZ;
@@ -2432,7 +2432,7 @@ static void ia_update_stats(IADEV *iadev) {
     return;
 }
   
-static void ia_led_timer(unsigned long arg) {
+static void ia_led_timer(struct timer_list *unused) {
  	unsigned long flags;
   	static u_char blinking[8] = {0, 0, 0, 0, 0, 0, 0, 0};
         u_char i;