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>

6 files changed, 14 insertions, 10 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 4503245211a..56f4ca7e49d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -297,7 +297,7 @@ static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv,
         if (iwl_queue_space(q) > q->low_mark && (txq_id >= 0) &&
                         (txq_id != IWL39_CMD_QUEUE_NUM) &&
                         priv->mac80211_registered)
-                iwl_wake_queue(priv, txq_id);
+                iwl_wake_queue(priv, txq);
 }
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 19400792a3f..2ec868d328b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2239,7 +2239,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
                         if (priv->mac80211_registered &&
                             (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
                             (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
-                                iwl_wake_queue(priv, txq->swq_id);
+                                iwl_wake_queue(priv, txq);
                 }
         } else {
                 info->status.rates[0].count = tx_resp->failure_frame + 1;
@@ -2263,7 +2263,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
 
                 if (priv->mac80211_registered &&
                     (iwl_queue_space(&txq->q) > txq->q.low_mark))
-                        iwl_wake_queue(priv, txq_id);
+                        iwl_wake_queue(priv, txq);
         }
         if (qc && likely(sta_id != IWL_INVALID_STATION))
                 iwlagn_txq_check_empty(priv, sta_id, tid, txq_id);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index 2ba83b5bbb8..eef90b5c972 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -446,7 +446,7 @@ static void iwlagn_rx_reply_tx(struct iwl_priv *priv,
                         if (priv->mac80211_registered &&
                             (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
                             (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
-                                iwl_wake_queue(priv, txq->swq_id);
+                                iwl_wake_queue(priv, txq);
                 }
         } else {
                 BUG_ON(txq_id != txq->swq_id);
@@ -456,7 +456,7 @@ static void iwlagn_rx_reply_tx(struct iwl_priv *priv,
 
                 if (priv->mac80211_registered &&
                     (iwl_queue_space(&txq->q) > txq->q.low_mark))
-                        iwl_wake_queue(priv, txq_id);
+                        iwl_wake_queue(priv, txq);
         }
 
         iwlagn_txq_check_empty(priv, sta_id, tid, txq_id);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index 0fc86c9d8fd..179a9c85045 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -783,7 +783,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
                         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 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
                 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);
         }
diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h
index 1aaef70deae..23fa8e88356 100644
--- a/drivers/net/wireless/iwlwifi/iwl-helpers.h
+++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h
@@ -116,8 +116,10 @@ static inline u8 iwl_virtual_agg_queue_num(u8 ac, u8 hwq)
         return 0x80 | (hwq << 2) | ac;
 }
 
-static inline void iwl_wake_queue(struct iwl_priv *priv, u8 queue)
+static inline void iwl_wake_queue(struct iwl_priv *priv,
+                                  struct iwl_tx_queue *txq)
 {
+        u8 queue = txq->swq_id;
         u8 ac = queue;
         u8 hwq = queue;
 
@@ -131,8 +133,10 @@ static inline void iwl_wake_queue(struct iwl_priv *priv, u8 queue)
                         ieee80211_wake_queue(priv->hw, ac);
 }
 
-static inline void iwl_stop_queue(struct iwl_priv *priv, u8 queue)
+static inline void iwl_stop_queue(struct iwl_priv *priv,
+                                  struct iwl_tx_queue *txq)
 {
+        u8 queue = txq->swq_id;
         u8 ac = queue;
         u8 hwq = queue;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index a55b4623e1c..b8c490624d2 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -662,7 +662,7 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
                         spin_unlock_irqrestore(&priv->lock, flags);
                 }
 
-                iwl_stop_queue(priv, skb_get_queue_mapping(skb));
+                iwl_stop_queue(priv, txq);
         }
 
         return 0;