cxgb3: Use SKB list interfaces instead of home-grown implementation.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index 2711404..4f5cc69 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -124,8 +124,7 @@
 	dma_addr_t phys_addr;	/* physical address of the ring */
 	unsigned int cntxt_id;	/* SGE context id for the response q */
 	spinlock_t lock;	/* guards response processing */
-	struct sk_buff *rx_head;	/* offload packet receive queue head */
-	struct sk_buff *rx_tail;	/* offload packet receive queue tail */
+	struct sk_buff_head rx_queue; /* offload packet receive queue */
 	struct sk_buff *pg_skb; /* used to build frag list in napi handler */
 
 	unsigned long offload_pkts;