6.17-stable review patch. If anyone has any objections, please let me know.
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From: Lorenzo Bianconi lorenzo@kernel.org
[ Upstream commit afff4325548f0cf872e404df2856bf8bd9581c7e ]
Do not always use deflink_id in link_sta_rc_update mac80211 callback but use the proper link_id provided by mac80211.
Fixes: 0762bdd30279f ("wifi: mt76: mt7996: rework mt7996_mac_sta_rc_work to support MLO") Signed-off-by: Lorenzo Bianconi lorenzo@kernel.org Link: https://patch.msgid.link/20250901-mt7996-fix-link_sta_rc_update-callback-v1-... Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- .../net/wireless/mediatek/mt76/mt7996/main.c | 43 ++++++++++++------- 1 file changed, 28 insertions(+), 15 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c index 3c34a4980afa0..81391db535866 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c @@ -1663,19 +1663,13 @@ static void mt7996_sta_statistics(struct ieee80211_hw *hw, } }
-static void mt7996_link_rate_ctrl_update(void *data, struct ieee80211_sta *sta) +static void mt7996_link_rate_ctrl_update(void *data, + struct mt7996_sta_link *msta_link) { - struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv; + struct mt7996_sta *msta = msta_link->sta; struct mt7996_dev *dev = msta->vif->deflink.phy->dev; - struct mt7996_sta_link *msta_link; u32 *changed = data;
- rcu_read_lock(); - - msta_link = rcu_dereference(msta->link[msta->deflink_id]); - if (!msta_link) - goto out; - spin_lock_bh(&dev->mt76.sta_poll_lock);
msta_link->changed |= *changed; @@ -1683,8 +1677,6 @@ static void mt7996_link_rate_ctrl_update(void *data, struct ieee80211_sta *sta) list_add_tail(&msta_link->rc_list, &dev->sta_rc_list);
spin_unlock_bh(&dev->mt76.sta_poll_lock); -out: - rcu_read_unlock(); }
static void mt7996_link_sta_rc_update(struct ieee80211_hw *hw, @@ -1692,11 +1684,32 @@ static void mt7996_link_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_link_sta *link_sta, u32 changed) { - struct mt7996_dev *dev = mt7996_hw_dev(hw); struct ieee80211_sta *sta = link_sta->sta; + struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv; + struct mt7996_sta_link *msta_link;
- mt7996_link_rate_ctrl_update(&changed, sta); - ieee80211_queue_work(hw, &dev->rc_work); + rcu_read_lock(); + + msta_link = rcu_dereference(msta->link[link_sta->link_id]); + if (msta_link) { + struct mt7996_dev *dev = mt7996_hw_dev(hw); + + mt7996_link_rate_ctrl_update(&changed, msta_link); + ieee80211_queue_work(hw, &dev->rc_work); + } + + rcu_read_unlock(); +} + +static void mt7996_sta_rate_ctrl_update(void *data, struct ieee80211_sta *sta) +{ + struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv; + struct mt7996_sta_link *msta_link; + u32 *changed = data; + + msta_link = rcu_dereference(msta->link[msta->deflink_id]); + if (msta_link) + mt7996_link_rate_ctrl_update(&changed, msta_link); }
static int @@ -1717,7 +1730,7 @@ mt7996_set_bitrate_mask(struct ieee80211_hw *hw, struct ieee80211_vif *vif, * - multiple rates: if it's not in range format i.e 0-{7,8,9} for VHT * then multiple MCS setting (MCS 4,5,6) is not supported. */ - ieee80211_iterate_stations_atomic(hw, mt7996_link_rate_ctrl_update, + ieee80211_iterate_stations_atomic(hw, mt7996_sta_rate_ctrl_update, &changed); ieee80211_queue_work(hw, &dev->rc_work);