net/xen-netback: Remove unused code in xenvif_rx_action

The variables old_req_cons and ring_slots_used are assigned but never
used since commit 1650d5455bd2dc6b5ee134bd6fc1a3236c266b5b "xen-netback:
always fully coalesce guest Rx packets".

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: netdev@vger.kernel.org
---
    Changes in v2:
        - Add Wei's Acked-by

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 0d2594395ffbc797671711603461148270f1a03f..ba3ae3030bba0c60c55052575d53f7c2fe8996bb 100644 (file)
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -515,14 +515,9 @@ static void xenvif_rx_action(struct xenvif_queue *queue)
 
        while (xenvif_rx_ring_slots_available(queue, XEN_NETBK_RX_SLOTS_MAX)
               && (skb = xenvif_rx_dequeue(queue)) != NULL) {
-               RING_IDX old_req_cons;
-               RING_IDX ring_slots_used;
-
                queue->last_rx_time = jiffies;
 
-               old_req_cons = queue->rx.req_cons;
                XENVIF_RX_CB(skb)->meta_slots_used = xenvif_gop_skb(skb, &npo, queue);
-               ring_slots_used = queue->rx.req_cons - old_req_cons;
 
                __skb_queue_tail(&rxq, skb);
        }