wifi: iwlwifi: mvm: iterate over interfaces after an assert in d3

In recent patches notifications based d3 resume flow was added,
and the resume flow was changed.

Currently, when resuming from d3 during which an assert was thrown,
the resume flow skips the iteration over active interfaces
preventing the sta to reconnect to the ap.

Perform the iteration in case an assert was thrown to fix it.

Signed-off-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20220906161827.ad888cc6cd91.Ib56e416fce17df089edf76d22896430df5ebe080@changeid
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 012fe872d9aafce4994c7cd0bf1d3002673a8470..d8a67f391ab9e843932560e698d3600ef09d7043 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -2555,7 +2555,7 @@ static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
  *     1. The mutex is already held.
  *     2. The callee functions unlock the mutex.
  */
-static void
+static bool
 iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm,
                                    struct ieee80211_vif *vif,
                                    struct iwl_d3_data *d3_data)
@@ -2581,12 +2581,9 @@ iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm,
                        mvm->keep_vif = vif;
 #endif
 
-               if (!d3_data->test)
-                       ieee80211_iterate_active_interfaces_mtx(mvm->hw,
-                                                               IEEE80211_IFACE_ITER_NORMAL,
-                                                               iwl_mvm_d3_disconnect_iter,
-                                                               keep ? vif : NULL);
+               return keep;
        }
+       return false;
 }
 
 #define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \
@@ -2863,6 +2860,7 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
        bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
                                      IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
        bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm);
+       bool keep = false;
 
        mutex_lock(&mvm->mutex);
 
@@ -2935,7 +2933,7 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
        }
 
 query_wakeup_reasons:
-       iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data);
+       keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data);
        /* has unlocked the mutex, so skip that */
        goto out;
 
@@ -2947,6 +2945,12 @@ out:
        kfree(d3_data.status);
        iwl_mvm_free_nd(mvm);
 
+       if (!d3_data.test && !mvm->net_detect)
+               ieee80211_iterate_active_interfaces_mtx(mvm->hw,
+                                                       IEEE80211_IFACE_ITER_NORMAL,
+                                                       iwl_mvm_d3_disconnect_iter,
+                                                       keep ? vif : NULL);
+
        clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
 
        /* no need to reset the device in unified images, if successful */