2 files changed, 10 insertions, 4 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index cb2642c18da4..b4e814543039 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -324,8 +324,9 @@ struct iwl_channel_info {
 #define IWL_MIN_NUM_QUEUES      10
 
 /*
- * uCode queue management definitions ...
- * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00.
+ * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
+ * the driver maps it into the appropriate device FIFO for the
+ * uCode.
  */
 #define IWL_CMD_QUEUE_NUM       4
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 05e75109d842..905ceca88b95 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -364,8 +364,13 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 
         txq->need_update = 0;
 
-        /* aggregation TX queues will get their ID when aggregation begins */
-        if (txq_id <= IWL_TX_FIFO_AC3)
+        /*
+         * Aggregation TX queues will get their ID when aggregation begins;
+         * they overwrite the setting done here. The command FIFO doesn't
+         * need an swq_id so don't set one to catch errors, all others can
+         * be set up to the identity mapping.
+         */
+        if (txq_id != IWL_CMD_QUEUE_NUM)
                 txq->swq_id = txq_id;
 
         /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise