From 4f87d486faf194ba58efaef8192a71e9ffec852e Mon Sep 17 00:00:00 2001
From: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Date: Tue, 9 Apr 2019 07:35:08 +0000
Subject: [PATCH] qtnfmac: handle channel switch events for connected stations
 only

Channel switch events from firmware should be processed only when STA
is already connected to BSS. On connect this notification is not needed
since full BSS info will be supplied by cfg80211_connect_result.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/quantenna/qtnfmac/event.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.c b/drivers/net/wireless/quantenna/qtnfmac/event.c
index 6c1b886339ac..b57c8c18a8d0 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/event.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.c
@@ -493,14 +493,20 @@ qtnf_event_handle_freq_change(struct qtnf_wmac *mac,
 
 	for (i = 0; i < QTNF_MAX_INTF; i++) {
 		vif = &mac->iflist[i];
+
 		if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)
 			continue;
 
-		if (vif->netdev) {
-			mutex_lock(&vif->wdev.mtx);
-			cfg80211_ch_switch_notify(vif->netdev, &chandef);
-			mutex_unlock(&vif->wdev.mtx);
-		}
+		if (vif->wdev.iftype == NL80211_IFTYPE_STATION &&
+		    !vif->wdev.current_bss)
+			continue;
+
+		if (!vif->netdev)
+			continue;
+
+		mutex_lock(&vif->wdev.mtx);
+		cfg80211_ch_switch_notify(vif->netdev, &chandef);
+		mutex_unlock(&vif->wdev.mtx);
 	}
 
 	return 0;
-- 
GitLab