iwlwifi: clean up in setup/cancel deferred work

This patch makes some clean up in setup/cancel_deferred_work.
iwl_setup_deferred_work does the work that is common to 4965
and 5000, then it calls to HW specific handlers.

This patch also removes uneeded work_struct from iwl_priv.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 34 insertions, 7 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index a8dfdcbb8b43..0acd42bd43c5 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -1647,6 +1647,26 @@ static void iwl4965_bg_beacon_update(struct work_struct *work)
         iwl4965_send_beacon_cmd(priv);
 }
 
+/**
+ * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
+ *
+ * This callback is provided in order to send a statistics request.
+ *
+ * This timer function is continually reset to execute within
+ * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
+ * was received.  We need to ensure we receive the statistics in order
+ * to update the temperature used for calibrating the TXPOWER.
+ */
+static void iwl4965_bg_statistics_periodic(unsigned long data)
+{
+        struct iwl_priv *priv = (struct iwl_priv *)data;
+
+        if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+                return;
+
+        iwl_send_statistics_request(priv, CMD_ASYNC);
+}
+
 static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
                                 struct iwl_rx_mem_buffer *rxb)
 {
@@ -2887,7 +2907,7 @@ static void iwl_alive_start(struct iwl_priv *priv)
         queue_work(priv->workqueue, &priv->restart);
 }
 
-static void iwl4965_cancel_deferred_work(struct iwl_priv *priv);
+static void iwl_cancel_deferred_work(struct iwl_priv *priv);
 
 static void __iwl4965_down(struct iwl_priv *priv)
 {
@@ -2991,7 +3011,7 @@ static void iwl4965_down(struct iwl_priv *priv)
         __iwl4965_down(priv);
         mutex_unlock(&priv->mutex);
 
-        iwl4965_cancel_deferred_work(priv);
+        iwl_cancel_deferred_work(priv);
 }
 
 #define MAX_HW_RESTARTS 5
@@ -5022,7 +5042,7 @@ static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
  *
  *****************************************************************************/
 
-static void iwl4965_setup_deferred_work(struct iwl_priv *priv)
+static void iwl_setup_deferred_work(struct iwl_priv *priv)
 {
         priv->workqueue = create_workqueue(DRV_NAME);
 
@@ -5043,21 +5063,28 @@ static void iwl4965_setup_deferred_work(struct iwl_priv *priv)
         INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
         INIT_DELAYED_WORK(&priv->scan_check, iwl4965_bg_scan_check);
 
-        iwl4965_hw_setup_deferred_work(priv);
+        if (priv->cfg->ops->lib->setup_deferred_work)
+                priv->cfg->ops->lib->setup_deferred_work(priv);
+
+        init_timer(&priv->statistics_periodic);
+        priv->statistics_periodic.data = (unsigned long)priv;
+        priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
 
         tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
                      iwl4965_irq_tasklet, (unsigned long)priv);
 }
 
-static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
+static void iwl_cancel_deferred_work(struct iwl_priv *priv)
 {
-        iwl4965_hw_cancel_deferred_work(priv);
+        if (priv->cfg->ops->lib->cancel_deferred_work)
+                priv->cfg->ops->lib->cancel_deferred_work(priv);
 
         cancel_delayed_work_sync(&priv->init_alive_start);
         cancel_delayed_work(&priv->scan_check);
         cancel_delayed_work(&priv->alive_start);
         cancel_delayed_work(&priv->post_associate);
         cancel_work_sync(&priv->beacon_update);
+        del_timer_sync(&priv->statistics_periodic);
 }
 
 static struct attribute *iwl4965_sysfs_entries[] = {
@@ -5269,7 +5296,7 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
         }
 
 
-        iwl4965_setup_deferred_work(priv);
+        iwl_setup_deferred_work(priv);
         iwl4965_setup_rx_handlers(priv);
 
         /********************