linux-kernel - [PATCH wireless-next v2 2/2] wifi: mac80211: parse unsolicited broadcast probe response data

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Message-Id: <20250710-update_unsol_bcast_probe_resp-v2-2-31aca39d3b30@oss.qualcomm.com>
Date: Thu, 10 Jul 2025 11:04:28 +0530
From: Aditya Kumar Singh <aditya.kumar.singh@....qualcomm.com>
To: Johannes Berg <johannes@...solutions.net>
Cc: linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yuvarani V <quic_yuvarani@...cinc.com>,
        Aditya Kumar Singh <aditya.kumar.singh@....qualcomm.com>
Subject: [PATCH wireless-next v2 2/2] wifi: mac80211: parse unsolicited
 broadcast probe response data

From: Yuvarani V <quic_yuvarani@...cinc.com>

During commands like channel switch and color change, the updated
unsolicited broadcast probe response template may be provided. However,
this data is not parsed or acted upon in mac80211.

Add support to parse it and set the BSS changed flag
BSS_CHANGED_UNSOL_BCAST_PROBE_RESP so that drivers could take further
action.

Signed-off-by: Yuvarani V <quic_yuvarani@...cinc.com>
Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@....qualcomm.com>
---
 net/mac80211/cfg.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 56540c3701ed786c37f946f9c4af820c15b5922d..cdecda1bd07b31cb7d8bd76eed074ecc2a828eb1 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -4173,6 +4173,12 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 		goto out;
 	}
 
+	err = ieee80211_set_unsol_bcast_probe_resp(sdata,
+						   &params->unsol_bcast_probe_resp,
+						   link_data, link_conf, &changed);
+	if (err)
+		goto out;
+
 	chanctx = container_of(conf, struct ieee80211_chanctx, conf);
 
 	ch_switch.timestamp = 0;
@@ -5114,6 +5120,12 @@ ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
 		goto out;
 	}
 
+	err = ieee80211_set_unsol_bcast_probe_resp(sdata,
+						   &params->unsol_bcast_probe_resp,
+						   link, link_conf, &changed);
+	if (err)
+		goto out;
+
 	err = ieee80211_set_color_change_beacon(link, params, &changed);
 	if (err)
 		goto out;

-- 
2.34.1