iwlwifi: separate led function from statistic notification

Detach led background task from statistic notification routine. if led
blinking is required; the blink rate is based on the traffic condition.
It do not relate to statistics notification. In addition to that, there is
not a requirement for statistics notification has to occur all the time.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@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-3945.c

@@ -359,8 +359,6 @@ void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
 		     le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
 
 	memcpy(&priv->statistics_39, pkt->u.raw, sizeof(priv->statistics_39));
-
-	iwl_leds_background(priv);
 }
 
 /******************************************************************************

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

@@ -1019,6 +1019,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 	if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
 		iwl_rx_handle(priv);
 		priv->isr_stats.rx++;
+		iwl_leds_background(priv);
 		handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
 	}
 
@@ -1220,6 +1221,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 				    CSR_INT_PERIODIC_ENA);
 
 		priv->isr_stats.rx++;
+		iwl_leds_background(priv);
 	}
 
 	if (inta & CSR_INT_BIT_FH_TX) {

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

@@ -627,9 +627,6 @@ void iwl_rx_statistics(struct iwl_priv *priv,
 		iwl_rx_calc_noise(priv);
 		queue_work(priv->workqueue, &priv->run_time_calib_work);
 	}
-
-	iwl_leds_background(priv);
-
 	if (priv->cfg->ops->lib->temp_ops.temperature && change)
 		priv->cfg->ops->lib->temp_ops.temperature(priv);
 }