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pkt_sched: Add qdisc_all_tx_empty()

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This is a helper function, currently used by IRDA.

This is being added so that we can contain and isolate as many
explicit ->tx_queue references in the tree as possible.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-07-08 23:00:25 -07:00
parent 5aa709954a
commit 3e745dd695
2 changed files with 10 additions and 1 deletions
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2
include/net/irda/irda_device.h
View File

@ -223,7 +223,7 @@ int irda_device_is_receiving(struct net_device *dev);
/* Interface for internal use */
static inline int irda_device_txqueue_empty(const struct net_device *dev)
{
return skb_queue_empty(&dev->tx_queue.qdisc->q);
return qdisc_all_tx_empty(dev);
}
int irda_device_set_raw_mode(struct net_device* self, int status);
struct net_device *alloc_irdadev(int sizeof_priv);

9
include/net/sch_generic.h
View File

@ -233,6 +233,15 @@ static inline void qdisc_reset_all_tx(struct net_device *dev)
qdisc_reset(dev->tx_queue.qdisc);
}
/* Are all TX queues of the device empty? */
static inline bool qdisc_all_tx_empty(const struct net_device *dev)
{
const struct netdev_queue *txq = &dev->tx_queue;
const struct Qdisc *q = txq->qdisc;
return (q->q.qlen == 0);
}
static inline int __qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch,
struct sk_buff_head *list)
{