diff options
| author | Alan Ott <alan@signal11.us> | 2013-04-03 04:00:55 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-07 17:06:43 -0400 |
| commit | 7dd43d356e739ea0fbeb832722fec36ba4e47540 (patch) | |
| tree | c33ac6630cf6b107e4faf79706fc252118a0381c /net/mac802154/tx.c | |
| parent | 524fba6c14d2892bfa27c01577d544d6380291ba (diff) | |
| download | linux-7dd43d356e739ea0fbeb832722fec36ba4e47540.tar.gz | |
mac802154: Do not try to resend failed packets
When ops->xmit() fails, drop the packet. Devices which support hardware ack and retry (which include all devices currently supported by mainline), will automatically retry sending the packet (in the hardware) up to 3 times, per the 802.15.4 spec. There is no need, and it is incorrect to try to do it in mac802154. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac802154/tx.c')
| -rw-r--r-- | net/mac802154/tx.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c index 4e09d070995a..726487493e5c 100644 --- a/net/mac802154/tx.c +++ b/net/mac802154/tx.c @@ -39,7 +39,6 @@ struct xmit_work { struct mac802154_priv *priv; u8 chan; u8 page; - u8 xmit_attempts; }; static void mac802154_xmit_worker(struct work_struct *work) @@ -60,18 +59,12 @@ static void mac802154_xmit_worker(struct work_struct *work) } res = xw->priv->ops->xmit(&xw->priv->hw, xw->skb); + if (res) + pr_debug("transmission failed\n"); out: mutex_unlock(&xw->priv->phy->pib_lock); - if (res) { - if (xw->xmit_attempts++ < MAC802154_MAX_XMIT_ATTEMPTS) { - queue_work(xw->priv->dev_workqueue, &xw->work); - return; - } else - pr_debug("transmission failed for %d times", - MAC802154_MAX_XMIT_ATTEMPTS); - } dev_kfree_skb(xw->skb); @@ -114,7 +107,6 @@ netdev_tx_t mac802154_tx(struct mac802154_priv *priv, struct sk_buff *skb, work->priv = priv; work->page = page; work->chan = chan; - work->xmit_attempts = 0; queue_work(priv->dev_workqueue, &work->work); |