[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/802/tr.c b/net/802/tr.c
index 1e115e5..151855d 100644
--- a/net/802/tr.c
+++ b/net/802/tr.c
@@ -641,10 +641,8 @@
 
 static int __init rif_init(void)
 {
-	init_timer(&rif_timer);
 	rif_timer.expires  = jiffies + sysctl_tr_rif_timeout;
-	rif_timer.data     = 0L;
-	rif_timer.function = rif_check_expire;
+	setup_timer(&rif_timer, rif_check_expire, 0);
 	add_timer(&rif_timer);
 
 	proc_net_fops_create(&init_net, "tr_rif", S_IRUGO, &rif_seq_fops);