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mt76: mt7921: fix network buffer leak by txs missing

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TXS in mt7921 may be forwared to tx_done event. Should try to catch
TXS information in tx_done event as well.

Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Deren Wu
2021-12-15 20:35:45 +01:00
committed by Felix Fietkau
parent 4ed8c910b9
commit bf105aa6cd
4 changed files with 43 additions and 1 deletions
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mt7921/mac.c
+1 -1
View File
@@ -1150,7 +1150,7 @@ out:
return !!skb;
}
static void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data)
void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data)
{
struct mt7921_sta *msta = NULL;
struct mt76_wcid *wcid;
mt7921/mcu.c
+14
View File
@@ -418,6 +418,17 @@ mt7921_mcu_low_power_event(struct mt7921_dev *dev, struct sk_buff *skb)
trace_lp_event(dev, event->state);
}
static void
mt7921_mcu_tx_done_event(struct mt7921_dev *dev, struct sk_buff *skb)
{
struct mt7921_mcu_tx_done_event *event;
skb_pull(skb, sizeof(struct mt7921_mcu_rxd));
event = (struct mt7921_mcu_tx_done_event *)skb->data;
mt7921_mac_add_txs(dev, event->txs);
}
static void
mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb)
{
@@ -445,6 +456,9 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb)
case MCU_EVENT_LP_INFO:
mt7921_mcu_low_power_event(dev, skb);
break;
case MCU_EVENT_TX_DONE:
mt7921_mcu_tx_done_event(dev, skb);
break;
default:
break;
}
mt7921/mcu.h
+27
View File
@@ -91,6 +91,33 @@ enum {
MCU_EVENT_COREDUMP = 0xf0,
};
struct mt7921_mcu_tx_done_event {
u8 pid;
u8 status;
__le16 seq;
u8 wlan_idx;
u8 tx_cnt;
__le16 tx_rate;
u8 flag;
u8 tid;
u8 rsp_rate;
u8 mcs;
u8 bw;
u8 tx_pwr;
u8 reason;
u8 rsv0[1];
__le32 delay;
__le32 timestamp;
__le32 applied_flag;
u8 txs[28];
u8 rsv1[32];
} __packed;
/* ext event table */
enum {
MCU_EXT_EVENT_RATE_REPORT = 0x87,
mt7921/mt7921.h
+1
View File
@@ -464,4 +464,5 @@ int mt7921s_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
struct mt76_tx_info *tx_info);
void mt7921s_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e);
bool mt7921s_tx_status_data(struct mt76_dev *mdev, u8 *update);
void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data);
#endif