2021-05-31 17:04:13

by Deren Wu

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

From: Deren Wu <[email protected]>

Enable src address randomization during scheduled scanning

Co-developed-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
---
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