1 files changed, 28 insertions, 15 deletions

diff --git a/drivers/net/wireless/ath/ath11k/reg.c b/drivers/net/wireless/ath/ath11k/reg.c
index 81e11cde31d7..80a697771393 100644
--- a/drivers/net/wireless/ath/ath11k/reg.c
+++ b/drivers/net/wireless/ath/ath11k/reg.c
@@ -102,7 +102,7 @@ ath11k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
 	ar->regdom_set_by_user = true;
 }
 
-int ath11k_reg_update_chan_list(struct ath11k *ar)
+int ath11k_reg_update_chan_list(struct ath11k *ar, bool wait)
 {
 	struct ieee80211_supported_band **bands;
 	struct scan_chan_list_params *params;
@@ -111,7 +111,32 @@ int ath11k_reg_update_chan_list(struct ath11k *ar)
 	struct channel_param *ch;
 	enum nl80211_band band;
 	int num_channels = 0;
-	int i, ret;
+	int i, ret, left;
+
+	if (wait && ar->state_11d != ATH11K_11D_IDLE) {
+		left = wait_for_completion_timeout(&ar->completed_11d_scan,
+						   ATH11K_SCAN_TIMEOUT_HZ);
+		if (!left) {
+			ath11k_dbg(ar->ab, ATH11K_DBG_REG,
+				   "failed to receive 11d scan complete: timed out\n");
+			ar->state_11d = ATH11K_11D_IDLE;
+		}
+		ath11k_dbg(ar->ab, ATH11K_DBG_REG,
+			   "reg 11d scan wait left time %d\n", left);
+	}
+
+	if (wait &&
+	    (ar->scan.state == ATH11K_SCAN_STARTING ||
+	    ar->scan.state == ATH11K_SCAN_RUNNING)) {
+		left = wait_for_completion_timeout(&ar->scan.completed,
+						   ATH11K_SCAN_TIMEOUT_HZ);
+		if (!left)
+			ath11k_dbg(ar->ab, ATH11K_DBG_REG,
+				   "failed to receive hw scan complete: timed out\n");
+
+		ath11k_dbg(ar->ab, ATH11K_DBG_REG,
+			   "reg hw scan wait left time %d\n", left);
+	}
 
 	bands = hw->wiphy->bands;
 	for (band = 0; band < NUM_NL80211_BANDS; band++) {
@@ -193,11 +218,6 @@ int ath11k_reg_update_chan_list(struct ath11k *ar)
 	ret = ath11k_wmi_send_scan_chan_list_cmd(ar, params);
 	kfree(params);
 
-	if (ar->pending_11d) {
-		complete(&ar->finish_11d_ch_list);
-		ar->pending_11d = false;
-	}
-
 	return ret;
 }
 
@@ -263,15 +283,8 @@ int ath11k_regd_update(struct ath11k *ar)
 		goto err;
 	}
 
-	if (ar->pending_11d)
-		complete(&ar->finish_11d_scan);
-
 	rtnl_lock();
 	wiphy_lock(ar->hw->wiphy);
-
-	if (ar->pending_11d)
-		reinit_completion(&ar->finish_11d_ch_list);
-
 	ret = regulatory_set_wiphy_regd_sync(ar->hw->wiphy, regd_copy);
 	wiphy_unlock(ar->hw->wiphy);
 	rtnl_unlock();
@@ -282,7 +295,7 @@ int ath11k_regd_update(struct ath11k *ar)
 		goto err;
 
 	if (ar->state == ATH11K_STATE_ON) {
-		ret = ath11k_reg_update_chan_list(ar);
+		ret = ath11k_reg_update_chan_list(ar, true);
 		if (ret)
 			goto err;
 	}