iwlwifi: mvm: fix GO powersave client manipulation

All station commands must include a valid MAC ID,
the ID 0 is randomly valid in some cases, but we
must set the ID properly. Do that by passing the
right station and using its mac_id_n_color.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/iwlwifi/mvm/mac80211.c

@@ -857,7 +857,6 @@ iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
 				  bool more_data)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
 
 	/* TODO: how do we tell the fw to send frames for a specific TID */
 
@@ -865,8 +864,7 @@ iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
 	 * The fw will send EOSP notification when the last frame will be
 	 * transmitted.
 	 */
-	iwl_mvm_sta_modify_sleep_tx_count(mvm, mvmsta->sta_id, reason,
-					  num_frames);
+	iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames);
 }
 
 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
@@ -890,7 +888,7 @@ static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
 	case STA_NOTIFY_AWAKE:
 		if (WARN_ON(mvmsta->sta_id == IWL_INVALID_STATION))
 			break;
-		iwl_mvm_sta_modify_ps_wake(mvm, mvmsta->sta_id);
+		iwl_mvm_sta_modify_ps_wake(mvm, sta);
 		break;
 	default:
 		break;

drivers/net/wireless/iwlwifi/mvm/sta.c

@@ -1188,13 +1188,16 @@ void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm,
 	rcu_read_unlock();
 }
 
-void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, int sta_id)
+void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
+				struct ieee80211_sta *sta)
 {
+	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
 	struct iwl_mvm_add_sta_cmd cmd = {
 		.add_modify = STA_MODE_MODIFY,
-		.sta_id = sta_id,
+		.sta_id = mvmsta->sta_id,
 		.modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT,
 		.sleep_state_flags = cpu_to_le16(STA_SLEEP_STATE_AWAKE),
+		.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color),
 	};
 	int ret;
 
@@ -1208,18 +1211,21 @@ void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, int sta_id)
 		IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
 }
 
-void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, int sta_id,
+void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
+				       struct ieee80211_sta *sta,
 				       enum ieee80211_frame_release_type reason,
 				       u16 cnt)
 {
 	u16 sleep_state_flags =
 		(reason == IEEE80211_FRAME_RELEASE_UAPSD) ?
 			STA_SLEEP_STATE_UAPSD : STA_SLEEP_STATE_PS_POLL;
+	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
 	struct iwl_mvm_add_sta_cmd cmd = {
 		.add_modify = STA_MODE_MODIFY,
-		.sta_id = sta_id,
+		.sta_id = mvmsta->sta_id,
 		.modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT,
 		.sleep_tx_count = cpu_to_le16(cnt),
+		.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color),
 		/*
 		 * Same modify mask for sleep_tx_count and sleep_state_flags so
 		 * we must set the sleep_state_flags too.

drivers/net/wireless/iwlwifi/mvm/sta.h

@@ -362,8 +362,10 @@ int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			  struct iwl_mvm_int_sta *bsta);
 int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *bsta);
 void iwl_mvm_sta_drained_wk(struct work_struct *wk);
-void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, int sta_id);
-void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, int sta_id,
+void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
+				struct ieee80211_sta *sta);
+void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
+				       struct ieee80211_sta *sta,
 				       enum ieee80211_frame_release_type reason,
 				       u16 cnt);
 int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,