[NET]: Convert init_timer into setup_timer

Many-many code in the kernel initialized the timer->function
and  timer->data together with calling init_timer(timer). There
is already a helper for this. Use it for networking code.

The patch is HUGE, but makes the code 130 lines shorter
(98 insertions(+), 228 deletions(-)).

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/atm/lec.c b/net/atm/lec.c
index 7eb1b21..0a9c4261 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -1789,9 +1789,8 @@
 	}
 	memcpy(to_return->mac_addr, mac_addr, ETH_ALEN);
 	INIT_HLIST_NODE(&to_return->next);
-	init_timer(&to_return->timer);
-	to_return->timer.function = lec_arp_expire_arp;
-	to_return->timer.data = (unsigned long)to_return;
+	setup_timer(&to_return->timer, lec_arp_expire_arp,
+			(unsigned long)to_return);
 	to_return->last_used = jiffies;
 	to_return->priv = priv;
 	skb_queue_head_init(&to_return->tx_wait);