iwlwifi: pass txq to wake/stop queue

Instead of passing the txq->swq_id, pass the
txq struct directly to make sure that in the
future nobody will pass an invalid number.
Only three places actually change from using
the txq_id or the skb's queue_mapping to now
using txq->swq_id as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index 0fc86c9..179a9c8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -783,7 +783,7 @@
 			iwl_txq_update_write_ptr(priv, txq);
 			spin_unlock_irqrestore(&priv->lock, flags);
 		} else {
-			iwl_stop_queue(priv, txq->swq_id);
+			iwl_stop_queue(priv, txq);
 		}
 	}
 
@@ -1408,7 +1408,7 @@
 		if ((iwl_queue_space(&txq->q) > txq->q.low_mark) &&
 		    priv->mac80211_registered &&
 		    (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
-			iwl_wake_queue(priv, txq->swq_id);
+			iwl_wake_queue(priv, txq);
 
 		iwlagn_txq_check_empty(priv, sta_id, tid, scd_flow);
 	}