iwlwifi: get some more information about command failure

This patch adds additional info about wrong command queue bug
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-tx.c

@@ -1260,8 +1260,13 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 	 * command queue then there a command routing bug has been introduced
 	 * in the queue management code. */
 	if (WARN(txq_id != IWL_CMD_QUEUE_NUM,
-		 "wrong command queue %d, command id 0x%X\n", txq_id, pkt->hdr.cmd))
+		 "wrong command queue %d, sequence 0x%X readp=%d writep=%d\n",
+		  txq_id, sequence,
+		  priv->txq[IWL_CMD_QUEUE_NUM].q.read_ptr,
+		  priv->txq[IWL_CMD_QUEUE_NUM].q.write_ptr)) {
+		iwl_print_hex_dump(priv, IWL_DL_INFO , rxb, 32);
 		return;
+	}
 
 	cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
 	cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];