[PATCH v2] mt76: mt7921: enable random mac address during sched_scan

[Deren Wu]

From: Deren Wu <deren.wu at mediatek.com>

Enable src address randomization during scheduled scanning

Co-developed-by: Lorenzo Bianconi <lorenzo at kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
Signed-off-by: Deren Wu <deren.wu at mediatek.com>
---
change since v2: update contributor info
---
 .../net/wireless/mediatek/mt76/mt76_connac_mcu.c   | 14 ++++++++------
 .../net/wireless/mediatek/mt76/mt76_connac_mcu.h   |  4 +++-
 drivers/net/wireless/mediatek/mt76/mt7921/init.c   |  3 ++-
 3 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index 73359defa176..b155e7b8d89d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -1515,14 +1515,16 @@ int mt76_connac_mcu_sched_scan_req(struct mt76_phy *phy,
 	req->version = 1;
 	req->seq_num = mvif->scan_seq_num | ext_phy << 7;
 
-	if (is_mt7663(phy->dev) &&
-	    (sreq->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)) {
-		get_random_mask_addr(req->mt7663.random_mac, sreq->mac_addr,
-				     sreq->mac_addr_mask);
+	if (sreq->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
+		u8 *addr = is_mt7663(phy->dev) ? req->mt7663.random_mac
+					       : req->mt7921.random_mac;
+
 		req->scan_func = 1;
-	} else if (is_mt7921(phy->dev)) {
-		req->mt7921.bss_idx = mvif->idx;
+		get_random_mask_addr(addr, sreq->mac_addr,
+				     sreq->mac_addr_mask);
 	}
+	if (is_mt7921(phy->dev))
+		req->mt7921.bss_idx = mvif->idx;
 
 	req->ssids_num = sreq->n_ssids;
 	for (i = 0; i < req->ssids_num; i++) {
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index d64b8058b744..3076417ead5f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -779,7 +779,9 @@ struct mt76_connac_sched_scan_req {
 		} mt7663;
 		struct {
 			u8 bss_idx;
-			u8 pad2[63];
+			u8 pad2[19];
+			u8 random_mac[ETH_ALEN];
+			u8 pad3[38];
 		} mt7921;
 	};
 } __packed;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index 59da29032645..19ce9ca72542 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -76,7 +76,8 @@ mt7921_init_wiphy(struct ieee80211_hw *hw)
 	wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
 	wiphy->reg_notifier = mt7921_regd_notifier;
 
-	wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
+	wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
+			   NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
 	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL);
 
 	ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
-- 
2.18.0