diff --git a/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mac80211/patches/subsys/mtk-1004-cfg80211-mtk-add-support-for-updating-background-cha.patch b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mac80211/patches/subsys/mtk-1004-cfg80211-mtk-add-support-for-updating-background-cha.patch
new file mode 100644
index 0000000..b52511a
--- /dev/null
+++ b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mac80211/patches/subsys/mtk-1004-cfg80211-mtk-add-support-for-updating-background-cha.patch
@@ -0,0 +1,88 @@
+From f0e42c5a5ea3491be2d7c61c798dffe126eabd2b Mon Sep 17 00:00:00 2001
+From: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
+Date: Wed, 5 Jul 2023 09:49:02 +0800
+Subject: [PATCH 1004/1006] cfg80211: mtk: add support for updating background
+ channel
+
+Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
+---
+ include/net/cfg80211.h       | 14 ++++++++++++++
+ include/uapi/linux/nl80211.h |  6 ++++++
+ net/wireless/mlme.c          | 12 ++++++++++++
+ 3 files changed, 32 insertions(+)
+
+diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
+index 2c51c3e..46c477a 100644
+--- a/include/net/cfg80211.h
++++ b/include/net/cfg80211.h
+@@ -8444,6 +8444,20 @@ void cfg80211_sta_update_dfs_state(struct wireless_dev *wdev,
+ 				   const struct cfg80211_chan_def *csa_chandef,
+ 				   bool associated);
+ 
++/**
++ * cfg80211_background_radar_update_channel - notify background chandef has been updated
++ * @wiphy: the wiphy
++ * @chandef: the updated chandef
++ * @expand: whether or not the operating channel should expand its width
++ * after offchan CAC
++ *
++ * Update the background chandef based on driver's decision, and notify the userspace
++ * that the current channel of background chain should be updated.
++ */
++void cfg80211_background_radar_update_channel(struct wiphy *wiphy,
++					      const struct cfg80211_chan_def *chandef,
++					      bool expand);
++
+ /**
+  * cfg80211_background_cac_abort - Channel Availability Check offchan abort event
+  * @wiphy: the wiphy
+diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
+index 60c6f79..6e96ad9 100644
+--- a/include/uapi/linux/nl80211.h
++++ b/include/uapi/linux/nl80211.h
+@@ -6671,6 +6671,10 @@ enum nl80211_smps_mode {
+  *	applicable for ETSI dfs domain where pre-CAC is valid for ever.
+  * @NL80211_RADAR_CAC_STARTED: Channel Availability Check has been started,
+  *	should be generated by HW if NL80211_EXT_FEATURE_DFS_OFFLOAD is enabled.
++ * @NL80211_RADAR_BACKGROUND_CHAN_UPDATE: background channel is updated by the
++ *	driver.
++ * @NL80211_RADAR_BACKGROUND_CHAN_EXPAND: background channel is updated by the
++ *	driver and required to expand main operating channel.
+  * @NL80211_RADAR_STA_CAC_SKIPPED: STA set the DFS state to available
+  *	when receiving CSA/assoc resp
+  * @NL80211_RADAR_STA_CAC_EXPIRED: STA set the DFS state to usable
+@@ -6683,6 +6687,8 @@ enum nl80211_radar_event {
+ 	NL80211_RADAR_NOP_FINISHED,
+ 	NL80211_RADAR_PRE_CAC_EXPIRED,
+ 	NL80211_RADAR_CAC_STARTED,
++	NL80211_RADAR_BACKGROUND_CHAN_UPDATE,
++	NL80211_RADAR_BACKGROUND_CHAN_EXPAND,
+ 	NL80211_RADAR_STA_CAC_SKIPPED,
+ 	NL80211_RADAR_STA_CAC_EXPIRED,
+ };
+diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
+index d345c72..5510d77 100644
+--- a/net/wireless/mlme.c
++++ b/net/wireless/mlme.c
+@@ -1158,6 +1158,18 @@ cfg80211_start_background_radar_detection(struct cfg80211_registered_device *rde
+ 	return 0;
+ }
+ 
++void cfg80211_background_radar_update_channel(struct wiphy *wiphy,
++					      const struct cfg80211_chan_def *chandef,
++					      bool expand)
++{
++	enum nl80211_radar_event event;
++
++	event = expand ? NL80211_RADAR_BACKGROUND_CHAN_EXPAND :
++			 NL80211_RADAR_BACKGROUND_CHAN_UPDATE;
++	nl80211_radar_notify(wiphy_to_rdev(wiphy), chandef, event, NULL, GFP_ATOMIC);
++}
++EXPORT_SYMBOL(cfg80211_background_radar_update_channel);
++
+ void cfg80211_stop_background_radar_detection(struct wireless_dev *wdev)
+ {
+ 	struct wiphy *wiphy = wdev->wiphy;
+-- 
+2.39.2
+