From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Deren Wu <deren.wu@mediatek.com>, Felix Fietkau <nbd@nbd.name>,
Sasha Levin <sashal@kernel.org>,
lorenzo.bianconi83@gmail.com, ryder.lee@mediatek.com,
kvalo@kernel.org, davem@davemloft.net, kuba@kernel.org,
matthias.bgg@gmail.com, sean.wang@mediatek.com,
Soul.Huang@mediatek.com, linux-wireless@vger.kernel.org,
netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Subject: [PATCH AUTOSEL 5.16 157/217] mt76: mt7921: fix network buffer leak by txs missing
Date: Mon, 17 Jan 2022 21:18:40 -0500 [thread overview]
Message-ID: <20220118021940.1942199-157-sashal@kernel.org> (raw)
In-Reply-To: <20220118021940.1942199-1-sashal@kernel.org>
From: Deren Wu <deren.wu@mediatek.com>
[ Upstream commit e0bf699ad8e52330d848144a9624a067ad588bd6 ]
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 <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../net/wireless/mediatek/mt76/mt7921/mac.c | 2 +-
.../net/wireless/mediatek/mt76/mt7921/mcu.c | 14 ++++++++++
.../net/wireless/mediatek/mt76/mt7921/mcu.h | 27 +++++++++++++++++++
.../wireless/mediatek/mt76/mt7921/mt7921.h | 1 +
4 files changed, 43 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index 27550385c35f9..4df272f93dd47 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -1072,7 +1072,7 @@ mt7921_mac_add_txs_skb(struct mt7921_dev *dev, struct mt76_wcid *wcid, int pid,
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;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 6ada1ebe7d68b..46ec9f713d772 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -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;
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
index edc0c73f8c01c..68cb0ce013dbd 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
@@ -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,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index e9c7c3a195076..7a6c38fbb940a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -463,4 +463,5 @@ 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
--
2.34.1
next prev parent reply other threads:[~2022-01-18 2:31 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220118021940.1942199-1-sashal@kernel.org>
2022-01-18 2:16 ` [PATCH AUTOSEL 5.16 015/217] ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply Sasha Levin
2022-01-18 2:16 ` [PATCH AUTOSEL 5.16 024/217] ath11k: enable IEEE80211_VHT_EXT_NSS_BW_CAPABLE if NSS ratio enabled Sasha Levin
2022-01-18 2:16 ` [PATCH AUTOSEL 5.16 028/217] ath11k: Fix crash caused by uninitialized TX ring Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 059/217] ath11k: Fix mon status ring rx tlv processing Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 074/217] rtw89: fix potentially access out of range of RF register array Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 075/217] rtw88: add quirk to disable pci caps on HP 250 G7 Notebook PC Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 076/217] mwifiex: Fix skb_over_panic in mwifiex_usb_recv() Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 077/217] rsi: Fix use-after-free in rsi_rx_done_handler() Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 078/217] rsi: Fix out-of-bounds read in rsi_read_pkt() Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 079/217] ath11k: Avoid NULL ptr access during mgmt tx cleanup Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 104/217] iwlwifi: mvm: synchronize with FW after multicast commands Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 105/217] iwlwifi: mvm: avoid clearing a just saved session protection id Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 106/217] iwlwifi: acpi: fix wgds rev 3 size Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 109/217] ath11k: avoid deadlock by change ieee80211_queue_work for regd_update_work Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 110/217] ath10k: Fix tx hanging Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 111/217] rtw89: don't kick off TX DMA if failed to write skb Sasha Levin
2022-01-18 2:17 ` [PATCH AUTOSEL 5.16 113/217] ath10k: drop beacon and probe response which leak from other channel Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 120/217] ath11k: Avoid false DEADLOCK warning reported by lockdep Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 152/217] mt76: mt7615: fix possible deadlock while mt7615_register_ext_phy() Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 153/217] mt76: mt7915: fix SMPS operation fail Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 154/217] mt76: connac: fix a theoretical NULL pointer dereference in mt76_connac_get_phy_mode Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 155/217] mt76: do not pass the received frame with decryption error Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 156/217] mt76: mt7615: improve wmm index allocation Sasha Levin
2022-01-18 2:18 ` Sasha Levin [this message]
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 158/217] ath9k_htc: fix NULL pointer dereference at ath9k_htc_rxep() Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 159/217] ath9k_htc: fix NULL pointer dereference at ath9k_htc_tx_get_packet() Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 160/217] ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 161/217] rtw88: 8822c: update rx settings to prevent potential hw deadlock Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 163/217] iwlwifi: recognize missing PNVM data and then log filename Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 164/217] iwlwifi: fix leaks/bad data after failed firmware load Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 165/217] iwlwifi: remove module loading failure message Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 166/217] iwlwifi: mvm: Fix calculation of frame length Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 167/217] iwlwifi: mvm: fix AUX ROC removal Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 168/217] iwlwifi: pcie: make sure prph_info is set when treating wakeup IRQ Sasha Levin
2022-01-18 2:18 ` [PATCH AUTOSEL 5.16 172/217] ath11k: Fix napi related hang Sasha Levin
2022-01-18 2:19 ` [PATCH AUTOSEL 5.16 195/217] mac80211: allow non-standard VHT MCS-10/11 Sasha Levin
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