[NET]: Hide the queue_mapping field inside netif_subqueue_stopped

Many places get the queue_mapping field from skb to pass it to the
netif_subqueue_stopped() which will be 0 in any case.

Make the helper that works with sk_buff

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index a9fad71..421281d 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -284,7 +284,7 @@
 		if (slave->qdisc_sleeping != q)
 			continue;
 		if (netif_queue_stopped(slave) ||
-		    netif_subqueue_stopped(slave, subq) ||
+		    __netif_subqueue_stopped(slave, subq) ||
 		    !netif_running(slave)) {
 			busy = 1;
 			continue;
@@ -294,7 +294,7 @@
 		case 0:
 			if (netif_tx_trylock(slave)) {
 				if (!netif_queue_stopped(slave) &&
-				    !netif_subqueue_stopped(slave, subq) &&
+				    !__netif_subqueue_stopped(slave, subq) &&
 				    slave->hard_start_xmit(skb, slave) == 0) {
 					netif_tx_unlock(slave);
 					master->slaves = NEXT_SLAVE(q);