libertas: kill internal tx queue for PS mode

It was buggy as hell anyway, since it was just spewing packets at the
device when it wasn't necessarily ready for them (in the USB case, while
the URB was still busy).

We could probably do with a better way of flushing packets to the device
_immediately_, before we stick it back into sleep mode. But we can no
longer just dequeue packets directly, it seems.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 37 deletions

diff --git a/drivers/net/wireless/libertas/tx.c b/drivers/net/wireless/libertas/tx.c
index 4cb39d33003c..749535e3f770 100644
--- a/drivers/net/wireless/libertas/tx.c
+++ b/drivers/net/wireless/libertas/tx.c
@@ -164,41 +164,6 @@ done:
 }
 
 
-void lbs_tx_runqueue(struct lbs_private *priv)
-{
-        int i;
-
-        spin_lock(&priv->txqueue_lock);
-        for (i = 0; i < priv->tx_queue_idx; i++) {
-                struct sk_buff *skb = priv->tx_queue_ps[i];
-                spin_unlock(&priv->txqueue_lock);
-                SendSinglePacket(priv, skb);
-                spin_lock(&priv->txqueue_lock);
-        }
-        priv->tx_queue_idx = 0;
-        spin_unlock(&priv->txqueue_lock);
-}
-
-static void lbs_tx_queue(struct lbs_private *priv, struct sk_buff *skb)
-{
-
-        spin_lock(&priv->txqueue_lock);
-
-        WARN_ON(priv->tx_queue_idx >= NR_TX_QUEUE);
-        priv->tx_queue_ps[priv->tx_queue_idx++] = skb;
-        if (priv->tx_queue_idx == NR_TX_QUEUE) {
-                netif_stop_queue(priv->dev);
-                if (priv->mesh_dev)
-                        netif_stop_queue(priv->mesh_dev);
-        } else {
-                netif_start_queue(priv->dev);
-                if (priv->mesh_dev)
-                        netif_start_queue(priv->mesh_dev);
-        }
-
-        spin_unlock(&priv->txqueue_lock);
-}
-
 /**
  *  @brief This function checks the conditions and sends packet to IF
  *  layer if everything is ok.
@@ -221,8 +186,9 @@ int lbs_process_tx(struct lbs_private *priv, struct sk_buff *skb)
 
         if ((priv->psstate == PS_STATE_SLEEP) ||
             (priv->psstate == PS_STATE_PRE_SLEEP)) {
-                lbs_tx_queue(priv, skb);
-                return ret;
+                lbs_pr_alert("TX error: packet xmit in %ssleep mode\n",
+                             priv->psstate == PS_STATE_SLEEP?"":"pre-");
+                goto done;
         }
 
         ret = SendSinglePacket(priv, skb);