iwlwifi: disable tx on beacon update notification

On beacon change update notification from mac we are not disabling
the tx in adhoc mode. Mac sends BSS_CHANGED_BEACON_ENABLED when
station leaves IBSS. Driver should indicate uCode to not to send
anything on receiving this notification.

Functionality to indicate uCode is duplicated across
two notifications so created a common function called iwl_set_no_assoc.

Fix the issue at
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2133.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Tested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 574d366..5461f10 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2344,6 +2344,21 @@ static void iwl_ht_conf(struct iwl_priv *priv,
        IWL_DEBUG_MAC80211(priv, "leave\n");
 }
 
+static inline void iwl_set_no_assoc(struct iwl_priv *priv)
+{
+       priv->assoc_id = 0;
+       iwl_led_disassociate(priv);
+       /*
+        * inform the ucode that there is no longer an
+        * association and that no more packets should be
+        * sent
+        */
+       priv->staging_rxon.filter_flags &=
+               ~RXON_FILTER_ASSOC_MSK;
+       priv->staging_rxon.assoc_id = 0;
+       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,
@@ -2475,20 +2490,8 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
                                        IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
                        if (!iwl_is_rfkill(priv))
                                priv->cfg->ops->lib->post_associate(priv);
-               } else {
-                       priv->assoc_id = 0;
-                       iwl_led_disassociate(priv);
-
-                       /*
-                        * inform the ucode that there is no longer an
-                        * association and that no more packets should be
-                        * send
-                        */
-                       priv->staging_rxon.filter_flags &=
-                               ~RXON_FILTER_ASSOC_MSK;
-                       priv->staging_rxon.assoc_id = 0;
-                       iwlcore_commit_rxon(priv);
-               }
+               } else
+                       iwl_set_no_assoc(priv);
        }
 
        if (changes && iwl_is_associated(priv) && priv->assoc_id) {
@@ -2503,12 +2506,14 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
                }
        }
 
-       if ((changes & BSS_CHANGED_BEACON_ENABLED) &&
-           vif->bss_conf.enable_beacon) {
-               memcpy(priv->staging_rxon.bssid_addr,
-                      bss_conf->bssid, ETH_ALEN);
-               memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
-               iwlcore_config_ap(priv);
+       if (changes & BSS_CHANGED_BEACON_ENABLED) {
+               if (vif->bss_conf.enable_beacon) {
+                       memcpy(priv->staging_rxon.bssid_addr,
+                              bss_conf->bssid, ETH_ALEN);
+                       memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
+                       iwlcore_config_ap(priv);
+               } else
+                       iwl_set_no_assoc(priv);
        }
 
        mutex_unlock(&priv->mutex);