From a97cd11f1654844ed431aa359eca83fa844883c0 Mon Sep 17 00:00:00 2001
From: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
Date: Thu, 27 Jul 2023 10:27:04 +0800
Subject: [PATCH 19/21] cfg80211: mtk: add background radar stop when
 background channel is overlapped with operating channel

Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
---
 net/wireless/nl80211.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index d8e4d0f..4692480 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -10021,6 +10021,10 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
 		wdev->cac_started = true;
 		wdev->cac_start_time = jiffies;
 		wdev->cac_time_ms = cac_time_ms;
+		if (rdev->background_cac_started &&
+		    cfg80211_is_sub_chan(&chandef, rdev->background_radar_chandef.chan, false)) {
+			cfg80211_stop_background_radar_detection(rdev->background_radar_wdev);
+		}
 	}
 unlock:
 	wiphy_unlock(wiphy);
-- 
2.39.2