xen-netfront: Use setup_timer

Use the timer API function setup_timer instead of structure field
assignments to initialize a timer.

A simplified version of the Coccinelle semantic patch that performs
this transformation is as follows:

@change@
expression e, func, da;
@@

-init_timer (&e);
+setup_timer (&e, func, da);
-e.data = da;
-e.function = func;

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Author: v-thakkar

drivers/net/xen-netfront.c

@@ -1560,9 +1560,8 @@ static int xennet_init_queue(struct netfront_queue *queue)
 	spin_lock_init(&queue->tx_lock);
 	spin_lock_init(&queue->rx_lock);
 
-	init_timer(&queue->rx_refill_timer);
-	queue->rx_refill_timer.data = (unsigned long)queue;
-	queue->rx_refill_timer.function = rx_refill_timeout;
+	setup_timer(&queue->rx_refill_timer, rx_refill_timeout,
+		    (unsigned long)queue);
 
 	snprintf(queue->name, sizeof(queue->name), "%s-q%u",
 		 queue->info->netdev->name, queue->id);