[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/inet_fragment.c b/net/ipv4/inet_fragment.c
index e15e04f..7379107 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -66,9 +66,8 @@
 	f->nqueues = 0;
 	atomic_set(&f->mem, 0);
 
-	init_timer(&f->secret_timer);
-	f->secret_timer.function = inet_frag_secret_rebuild;
-	f->secret_timer.data = (unsigned long)f;
+	setup_timer(&f->secret_timer, inet_frag_secret_rebuild,
+			(unsigned long)f);
 	f->secret_timer.expires = jiffies + f->ctl->secret_interval;
 	add_timer(&f->secret_timer);
 }