iwlwifi: don't send REPLY_REMOVE_ALL_STA upon exit

This patch avoids sending REPLY_REMOVE_ALL_STA in down flow, this avoids a
meaningless warning from being printed
On the way this patch also renames the the function to
iwl_clear_stations_table
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-5000.c

@@ -675,7 +675,7 @@ static void iwl5000_init_alive_start(struct iwl_priv *priv)
 		goto restart;
 	}
 
-	iwlcore_clear_stations_table(priv);
+	iwl_clear_stations_table(priv);
 	ret = priv->cfg->ops->lib->alive_notify(priv);
 	if (ret) {
 		IWL_WARNING("Could not complete ALIVE transition: %d\n", ret);

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

@@ -273,26 +273,27 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
 EXPORT_SYMBOL(iwl_hw_nic_init);
 
 /**
- * iwlcore_clear_stations_table - Clear the driver's station table
+ * iwl_clear_stations_table - Clear the driver's station table
  *
  * NOTE:  This does not clear or otherwise alter the device's station table.
  */
-void iwlcore_clear_stations_table(struct iwl_priv *priv)
+void iwl_clear_stations_table(struct iwl_priv *priv)
 {
 	unsigned long flags;
 
 	spin_lock_irqsave(&priv->sta_lock, flags);
 
-	priv->num_stations = 0;
 	if (iwl_is_alive(priv) &&
+	   !test_bit(STATUS_EXIT_PENDING, &priv->status) &&
 	   iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL))
 		IWL_ERROR("Couldn't clear the station table\n");
 
+	priv->num_stations = 0;
 	memset(priv->stations, 0, sizeof(priv->stations));
 
 	spin_unlock_irqrestore(&priv->sta_lock, flags);
 }
-EXPORT_SYMBOL(iwlcore_clear_stations_table);
+EXPORT_SYMBOL(iwl_clear_stations_table);
 
 void iwl_reset_qos(struct iwl_priv *priv)
 {
@@ -864,7 +865,7 @@ int iwl_init_drv(struct iwl_priv *priv)
 	mutex_init(&priv->mutex);
 
 	/* Clear the driver's (not device's) station table */
-	iwlcore_clear_stations_table(priv);
+	iwl_clear_stations_table(priv);
 
 	priv->data_retry_limit = -1;
 	priv->ieee_channels = NULL;

drivers/net/wireless/iwlwifi/iwl-core.h

@@ -181,7 +181,7 @@ struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 		struct ieee80211_ops *hw_ops);
 void iwl_hw_detect(struct iwl_priv *priv);
 
-void iwlcore_clear_stations_table(struct iwl_priv *priv);
+void iwl_clear_stations_table(struct iwl_priv *priv);
 void iwl_free_calib_results(struct iwl_priv *priv);
 void iwl_reset_qos(struct iwl_priv *priv);
 void iwl_set_rxon_chain(struct iwl_priv *priv);

drivers/net/wireless/iwlwifi/iwl4965-base.c

@@ -320,7 +320,7 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv)
 		memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
 	}
 
-	iwlcore_clear_stations_table(priv);
+	iwl_clear_stations_table(priv);
 
 	if (!priv->error_recovering)
 		priv->start_calib = 0;
@@ -841,7 +841,7 @@ static int iwl4965_set_mode(struct iwl_priv *priv, int mode)
 	iwl4965_connection_init_rx_config(priv);
 	memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
 
-	iwlcore_clear_stations_table(priv);
+	iwl_clear_stations_table(priv);
 
 	/* dont commit rxon if rf-kill is on*/
 	if (!iwl_is_ready_rf(priv))
@@ -2150,7 +2150,7 @@ static void iwl_alive_start(struct iwl_priv *priv)
 		goto restart;
 	}
 
-	iwlcore_clear_stations_table(priv);
+	iwl_clear_stations_table(priv);
 	ret = priv->cfg->ops->lib->alive_notify(priv);
 	if (ret) {
 		IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
@@ -2228,7 +2228,7 @@ static void __iwl4965_down(struct iwl_priv *priv)
 
 	iwl_leds_unregister(priv);
 
-	iwlcore_clear_stations_table(priv);
+	iwl_clear_stations_table(priv);
 
 	/* Unblock any waiting calls */
 	wake_up_interruptible_all(&priv->wait_command_queue);
@@ -2390,7 +2390,7 @@ static int __iwl4965_up(struct iwl_priv *priv)
 
 	for (i = 0; i < MAX_HW_RESTARTS; i++) {
 
-		iwlcore_clear_stations_table(priv);
+		iwl_clear_stations_table(priv);
 
 		/* load bootstrap state machine,
 		 * load bootstrap program into processor's memory,
@@ -4530,7 +4530,7 @@ static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
 		iwl_rx_queue_free(priv, &priv->rxq);
 	iwl_hw_txq_ctx_free(priv);
 
-	iwlcore_clear_stations_table(priv);
+	iwl_clear_stations_table(priv);
 	iwl_eeprom_free(priv);