net: add netif_tx_queue_frozen_or_stopped

When testing struct netdev_queue state against FROZEN bit, we also test
XOFF bit. We can test both bits at once and save some cycles.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index 401af95..106479a 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -309,8 +309,7 @@
 			if (__netif_tx_trylock(slave_txq)) {
 				unsigned int length = qdisc_pkt_len(skb);
 
-				if (!netif_tx_queue_stopped(slave_txq) &&
-				    !netif_tx_queue_frozen(slave_txq) &&
+				if (!netif_tx_queue_frozen_or_stopped(slave_txq) &&
 				    slave_ops->ndo_start_xmit(skb, slave) == NETDEV_TX_OK) {
 					txq_trans_update(slave_txq);
 					__netif_tx_unlock(slave_txq);