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wifi: mt76: mt7996: reset station links on hardware restart

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Ensure that all allocated memory is freed properly

Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2025-09-12 13:51:36 +02:00
parent ddbe1f6eb2
commit 6745cece7a
3 changed files with 34 additions and 6 deletions
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mt7996/mac.c
+27
View File
@@ -2356,6 +2356,32 @@ out:
return ret;
}
static void
mt7996_mac_reset_sta_iter(void *data, struct ieee80211_sta *sta)
{
struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
struct mt7996_dev *dev = data;
int i;
for (i = 0; i < ARRAY_SIZE(msta->link); i++) {
struct mt7996_sta_link *msta_link = NULL;
msta_link = rcu_replace_pointer(msta->link[i], msta_link,
lockdep_is_held(&dev->mt76.mutex));
if (!msta_link)
continue;
mt7996_mac_sta_deinit_link(dev, msta_link);
if (msta->deflink_id == i) {
msta->deflink_id = IEEE80211_LINK_UNSPECIFIED;
continue;
}
kfree_rcu(msta_link, rcu_head);
}
}
static void
mt7996_mac_full_reset(struct mt7996_dev *dev)
{
@@ -2385,6 +2411,7 @@ mt7996_mac_full_reset(struct mt7996_dev *dev)
mt7996_for_each_phy(dev, phy)
phy->omac_mask = 0;
ieee80211_iterate_stations_atomic(hw, mt7996_mac_reset_sta_iter, dev);
mt76_reset_device(&dev->mt76);
INIT_LIST_HEAD(&dev->sta_rc_list);
mt7996/main.c
+5 -6
View File
@@ -1000,13 +1000,9 @@ mt7996_mac_sta_init_link(struct mt7996_dev *dev,
return 0;
}
static void
mt7996_mac_sta_deinit_link(struct mt7996_dev *dev,
struct mt7996_sta_link *msta_link)
void mt7996_mac_sta_deinit_link(struct mt7996_dev *dev,
struct mt7996_sta_link *msta_link)
{
mt7996_mac_wtbl_update(dev, msta_link->wcid.idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
spin_lock_bh(&dev->mt76.sta_poll_lock);
if (!list_empty(&msta_link->wcid.poll_list))
list_del_init(&msta_link->wcid.poll_list);
@@ -1036,6 +1032,9 @@ mt7996_mac_sta_remove_links(struct mt7996_dev *dev, struct ieee80211_vif *vif,
if (!msta_link)
continue;
mt7996_mac_wtbl_update(dev, msta_link->wcid.idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
mt7996_mac_sta_deinit_link(dev, msta_link);
link = mt7996_vif_link(dev, vif, link_id);
if (!link)
mt7996/mt7996.h
+2
View File
@@ -817,6 +817,8 @@ void mt7996_mac_twt_teardown_flow(struct mt7996_dev *dev,
struct mt7996_vif_link *link,
struct mt7996_sta_link *msta_link,
u8 flowid);
void mt7996_mac_sta_deinit_link(struct mt7996_dev *dev,
struct mt7996_sta_link *msta_link);
void mt7996_mac_add_twt_setup(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
struct ieee80211_twt_setup *twt);