iwlwifi: remove next_scan_jiffies

This logic is just confusing, if anything it
belongs into mac80211. Also, even if we do
scan during the EAPOL handshake, that will
not cause any problems, just a short delay.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

4 files changed, 0 insertions, 35 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 73f5fc6c35d5..9d300b2d9fe3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1867,7 +1867,6 @@ static inline void iwl_set_no_assoc(struct iwl_priv *priv)
         iwlcore_commit_rxon(priv);
 }
 
-#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
 void iwl_bss_info_changed(struct ieee80211_hw *hw,
                           struct ieee80211_vif *vif,
                           struct ieee80211_bss_conf *bss_conf,
@@ -1988,14 +1987,6 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
 
                         iwl_led_associate(priv);
 
-                        /*
-                         * We have just associated, don't start scan too early
-                         * leave time for EAPOL exchange to complete.
-                         *
-                         * XXX: do this in mac80211
-                         */
-                        priv->next_scan_jiffies = jiffies +
-                                        IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
                         if (!iwl_is_rfkill(priv))
                                 priv->cfg->ops->lib->post_associate(priv);
                 } else
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index ee4cb028e138..f2d4ca5b132a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1049,7 +1049,6 @@ struct iwl_priv {
         struct iwl_calib_result calib_results[IWL_CALIB_MAX];
 
         /* Scan related variables */
-        unsigned long next_scan_jiffies;
         unsigned long scan_start;
         unsigned long scan_pass_start;
         unsigned long scan_start_tsf;
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 7982b1930763..e45b49ada9fa 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -199,9 +199,6 @@ static void iwl_rx_scan_results_notif(struct iwl_priv *priv,
                        le32_to_cpu(notif->statistics[0]),
                        le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf);
 #endif
-
-        if (!priv->is_internal_short_scan)
-                priv->next_scan_jiffies = 0;
 }
 
 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
@@ -234,9 +231,6 @@ static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
         if (test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->status))
                 IWL_DEBUG_INFO(priv, "Aborted scan completed.\n");
 
-        if (!priv->is_internal_short_scan)
-                priv->next_scan_jiffies = 0;
-
         IWL_DEBUG_INFO(priv, "Setting scan to off\n");
 
         clear_bit(STATUS_SCANNING, &priv->status);
@@ -462,8 +456,6 @@ static int iwl_scan_initiate(struct iwl_priv *priv)
         return 0;
 }
 
-#define IWL_DELAY_NEXT_SCAN (HZ*2)
-
 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
                      struct cfg80211_scan_request *req)
 {
@@ -497,18 +489,6 @@ int iwl_mac_hw_scan(struct ieee80211_hw *hw,
                 goto out_unlock;
         }
 
-        /* We don't schedule scan within next_scan_jiffies period.
-         * Avoid scanning during possible EAPOL exchange, return
-         * success immediately.
-         */
-        if (priv->next_scan_jiffies &&
-            time_after(priv->next_scan_jiffies, jiffies)) {
-                IWL_DEBUG_SCAN(priv, "scan rejected: within next scan period\n");
-                queue_work(priv->workqueue, &priv->scan_completed);
-                ret = 0;
-                goto out_unlock;
-        }
-
         /* mac80211 will only ask for one band at a time */
         priv->scan_band = req->channels[0]->band;
         priv->scan_request = req;
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index e26669558fc2..af32359400b3 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3048,8 +3048,6 @@ static void iwl3945_bg_rx_replenish(struct work_struct *data)
         mutex_unlock(&priv->mutex);
 }
 
-#define IWL_DELAY_NEXT_SCAN (HZ*2)
-
 void iwl3945_post_associate(struct iwl_priv *priv)
 {
         int rc = 0;
@@ -3134,9 +3132,6 @@ void iwl3945_post_associate(struct iwl_priv *priv)
                            __func__, priv->iw_mode);
                 break;
         }
-
-        /* we have just associated, don't start scan too early */
-        priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
 }
 
 /*****************************************************************************