Merge v6.6.26

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 24 insertions, 7 deletions

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index f81c4bcd85a2..cbd98ea4a84a 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -2388,6 +2388,7 @@ static int lan8814_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
 	struct hwtstamp_config config;
 	int txcfg = 0, rxcfg = 0;
 	int pkt_ts_enable;
+	int tx_mod;
 
 	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
 		return -EFAULT;
@@ -2437,9 +2438,14 @@ static int lan8814_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
 	lanphy_write_page_reg(ptp_priv->phydev, 5, PTP_RX_TIMESTAMP_EN, pkt_ts_enable);
 	lanphy_write_page_reg(ptp_priv->phydev, 5, PTP_TX_TIMESTAMP_EN, pkt_ts_enable);
 
-	if (ptp_priv->hwts_tx_type == HWTSTAMP_TX_ONESTEP_SYNC)
+	tx_mod = lanphy_read_page_reg(ptp_priv->phydev, 5, PTP_TX_MOD);
+	if (ptp_priv->hwts_tx_type == HWTSTAMP_TX_ONESTEP_SYNC) {
 		lanphy_write_page_reg(ptp_priv->phydev, 5, PTP_TX_MOD,
-				      PTP_TX_MOD_TX_PTP_SYNC_TS_INSERT_);
+				      tx_mod | PTP_TX_MOD_TX_PTP_SYNC_TS_INSERT_);
+	} else if (ptp_priv->hwts_tx_type == HWTSTAMP_TX_ON) {
+		lanphy_write_page_reg(ptp_priv->phydev, 5, PTP_TX_MOD,
+				      tx_mod & ~PTP_TX_MOD_TX_PTP_SYNC_TS_INSERT_);
+	}
 
 	if (config.rx_filter != HWTSTAMP_FILTER_NONE)
 		lan8814_config_ts_intr(ptp_priv->phydev, true);
@@ -2497,7 +2503,7 @@ static void lan8814_txtstamp(struct mii_timestamper *mii_ts,
 	}
 }
 
-static void lan8814_get_sig_rx(struct sk_buff *skb, u16 *sig)
+static bool lan8814_get_sig_rx(struct sk_buff *skb, u16 *sig)
 {
 	struct ptp_header *ptp_header;
 	u32 type;
@@ -2507,7 +2513,11 @@ static void lan8814_get_sig_rx(struct sk_buff *skb, u16 *sig)
 	ptp_header = ptp_parse_header(skb, type);
 	skb_pull_inline(skb, ETH_HLEN);
 
+	if (!ptp_header)
+		return false;
+
 	*sig = (__force u16)(ntohs(ptp_header->sequence_id));
+	return true;
 }
 
 static bool lan8814_match_rx_skb(struct kszphy_ptp_priv *ptp_priv,
@@ -2519,7 +2529,8 @@ static bool lan8814_match_rx_skb(struct kszphy_ptp_priv *ptp_priv,
 	bool ret = false;
 	u16 skb_sig;
 
-	lan8814_get_sig_rx(skb, &skb_sig);
+	if (!lan8814_get_sig_rx(skb, &skb_sig))
+		return ret;
 
 	/* Iterate over all RX timestamps and match it with the received skbs */
 	spin_lock_irqsave(&ptp_priv->rx_ts_lock, flags);
@@ -2799,7 +2810,7 @@ static int lan8814_ptpci_adjfine(struct ptp_clock_info *ptpci, long scaled_ppm)
 	return 0;
 }
 
-static void lan8814_get_sig_tx(struct sk_buff *skb, u16 *sig)
+static bool lan8814_get_sig_tx(struct sk_buff *skb, u16 *sig)
 {
 	struct ptp_header *ptp_header;
 	u32 type;
@@ -2807,7 +2818,11 @@ static void lan8814_get_sig_tx(struct sk_buff *skb, u16 *sig)
 	type = ptp_classify_raw(skb);
 	ptp_header = ptp_parse_header(skb, type);
 
+	if (!ptp_header)
+		return false;
+
 	*sig = (__force u16)(ntohs(ptp_header->sequence_id));
+	return true;
 }
 
 static void lan8814_match_tx_skb(struct kszphy_ptp_priv *ptp_priv,
@@ -2821,7 +2836,8 @@ static void lan8814_match_tx_skb(struct kszphy_ptp_priv *ptp_priv,
 
 	spin_lock_irqsave(&ptp_priv->tx_queue.lock, flags);
 	skb_queue_walk_safe(&ptp_priv->tx_queue, skb, skb_tmp) {
-		lan8814_get_sig_tx(skb, &skb_sig);
+		if (!lan8814_get_sig_tx(skb, &skb_sig))
+			continue;
 
 		if (memcmp(&skb_sig, &seq_id, sizeof(seq_id)))
 			continue;
@@ -2875,7 +2891,8 @@ static bool lan8814_match_skb(struct kszphy_ptp_priv *ptp_priv,
 
 	spin_lock_irqsave(&ptp_priv->rx_queue.lock, flags);
 	skb_queue_walk_safe(&ptp_priv->rx_queue, skb, skb_tmp) {
-		lan8814_get_sig_rx(skb, &skb_sig);
+		if (!lan8814_get_sig_rx(skb, &skb_sig))
+			continue;
 
 		if (memcmp(&skb_sig, &rx_ts->seq_id, sizeof(rx_ts->seq_id)))
 			continue;