[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/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 37bb497..ba6c23c 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1889,8 +1889,7 @@
 				       sizeof(struct mfc_cache),
 				       0, SLAB_HWCACHE_ALIGN|SLAB_PANIC,
 				       NULL);
-	init_timer(&ipmr_expire_timer);
-	ipmr_expire_timer.function=ipmr_expire_process;
+	setup_timer(&ipmr_expire_timer, ipmr_expire_process, 0);
 	register_netdevice_notifier(&ip_mr_notifier);
 #ifdef CONFIG_PROC_FS
 	proc_net_fops_create(&init_net, "ip_mr_vif", 0, &ipmr_vif_fops);