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_generic.c b/net/sched/sch_generic.c
index 5dbb3cd..7f0bd895 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -60,8 +60,7 @@
/* check the reason of requeuing without tx lock first */
txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
- if (!netif_tx_queue_stopped(txq) &&
- !netif_tx_queue_frozen(txq)) {
+ if (!netif_tx_queue_frozen_or_stopped(txq)) {
q->gso_skb = NULL;
q->q.qlen--;
} else
@@ -122,7 +121,7 @@
spin_unlock(root_lock);
HARD_TX_LOCK(dev, txq, smp_processor_id());
- if (!netif_tx_queue_stopped(txq) && !netif_tx_queue_frozen(txq))
+ if (!netif_tx_queue_frozen_or_stopped(txq))
ret = dev_hard_start_xmit(skb, dev, txq);
HARD_TX_UNLOCK(dev, txq);
@@ -144,8 +143,7 @@
ret = dev_requeue_skb(skb, q);
}
- if (ret && (netif_tx_queue_stopped(txq) ||
- netif_tx_queue_frozen(txq)))
+ if (ret && netif_tx_queue_frozen_or_stopped(txq))
ret = 0;
return ret;