iwlwifi: mvm: cleanup roc te on restart cleanup

iwl_mvm_restart_cleanup() calls ieee80211_remain_on_channel_expired()
on cleanup, but it doesn't clean the actual roc time
events, resulting in failure of further ROC attempts.

Refactor iwl_mvm_stop_roc() a bit, and add a new function
to only cleanup the roc time events (without sending further
commands).

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 09afb6d..f428f1c 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -967,6 +967,7 @@ static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
        mvm->calibrating = false;
 
        /* just in case one was running */
+       iwl_mvm_cleanup_roc_te(mvm);
        ieee80211_remain_on_channel_expired(mvm->hw);
 
        /*

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
index 87a04c3..924dd6a 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
@@ -792,11 +792,9 @@ int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
        return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd);
 }
 
-void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
+static struct iwl_mvm_time_event_data *iwl_mvm_get_roc_te(struct iwl_mvm *mvm)
 {
-       struct iwl_mvm_vif *mvmvif = NULL;
        struct iwl_mvm_time_event_data *te_data;
-       bool is_p2p = false;
 
        lockdep_assert_held(&mvm->mutex);
 
@@ -810,11 +808,8 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
         * request
         */
        list_for_each_entry(te_data, &mvm->time_event_list, list) {
-               if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) {
-                       mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
-                       is_p2p = true;
-                       goto remove_te;
-               }
+               if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE)
+                       goto out;
        }
 
        /* There can only be at most one AUX ROC time event, we just use the
@@ -823,18 +818,35 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
        te_data = list_first_entry_or_null(&mvm->aux_roc_te_list,
                                           struct iwl_mvm_time_event_data,
                                           list);
+out:
+       spin_unlock_bh(&mvm->time_event_lock);
+       return te_data;
+}
+
+void iwl_mvm_cleanup_roc_te(struct iwl_mvm *mvm)
+{
+       struct iwl_mvm_time_event_data *te_data;
+       u32 uid;
+
+       te_data = iwl_mvm_get_roc_te(mvm);
        if (te_data)
-               mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
+               __iwl_mvm_remove_time_event(mvm, te_data, &uid);
+}
 
-remove_te:
-       spin_unlock_bh(&mvm->time_event_lock);
+void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
+{
+       struct iwl_mvm_vif *mvmvif;
+       struct iwl_mvm_time_event_data *te_data;
 
-       if (!mvmvif) {
+       te_data = iwl_mvm_get_roc_te(mvm);
+       if (!te_data) {
                IWL_WARN(mvm, "No remain on channel event\n");
                return;
        }
 
-       if (is_p2p)
+       mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
+
+       if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE)
                iwl_mvm_remove_time_event(mvm, mvmvif, te_data);
        else
                iwl_mvm_remove_aux_roc_te(mvm, mvmvif, te_data);

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.h b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.h
index 61d7cd7..99d9a35 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.h
@@ -215,6 +215,7 @@ void iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
 void iwl_mvm_te_clear_data(struct iwl_mvm *mvm,
                           struct iwl_mvm_time_event_data *te_data);
 
+void iwl_mvm_cleanup_roc_te(struct iwl_mvm *mvm);
 void iwl_mvm_roc_done_wk(struct work_struct *wk);
 
 /**