[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/sunrpc/sched.c b/net/sunrpc/sched.c
index c98873f..eed5dd9 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -811,9 +811,8 @@
 void rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt, int flags, const struct rpc_call_ops *tk_ops, void *calldata)
 {
 	memset(task, 0, sizeof(*task));
-	init_timer(&task->tk_timer);
-	task->tk_timer.data     = (unsigned long) task;
-	task->tk_timer.function = (void (*)(unsigned long)) rpc_run_timer;
+	setup_timer(&task->tk_timer, (void (*)(unsigned long))rpc_run_timer,
+			(unsigned long)task);
 	atomic_set(&task->tk_count, 1);
 	task->tk_client = clnt;
 	task->tk_flags  = flags;