Merge tag 'net-6.2-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from wireless, bluetooth, bpf and netfilter.

  Current release - regressions:

   - Revert "net: team: use IFF_NO_ADDRCONF flag to prevent ipv6
     addrconf", fix nsna_ping mode of team

   - wifi: mt76: fix bugs in Rx queue handling and DMA mapping

   - eth: mlx5:
      - add missing mutex_unlock in error reporter
      - protect global IPsec ASO with a lock

  Current release - new code bugs:

   - rxrpc: fix wrong error return in rxrpc_connect_call()

  Previous releases - regressions:

   - bluetooth: hci_sync: fix use of HCI_OP_LE_READ_BUFFER_SIZE_V2

   - wifi:
      - mac80211: fix crashes on Rx due to incorrect initialization of
        rx->link and rx->link_sta
      - mac80211: fix bugs in iTXQ conversion - Tx stalls, incorrect
        aggregation handling, crashes
      - brcmfmac: fix regression for Broadcom PCIe wifi devices
      - rndis_wlan: prevent buffer overflow in rndis_query_oid

   - netfilter: conntrack: handle tcp challenge acks during connection
     reuse

   - sched: avoid grafting on htb_destroy_class_offload when destroying

   - virtio-net: correctly enable callback during start_xmit, fix stalls

   - tcp: avoid the lookup process failing to get sk in ehash table

   - ipa: disable ipa interrupt during suspend

   - eth: stmmac: enable all safety features by default

  Previous releases - always broken:

   - bpf:
      - fix pointer-leak due to insufficient speculative store bypass
        mitigation (Spectre v4)
      - skip task with pid=1 in send_signal_common() to avoid a splat
      - fix BPF program ID information in BPF_AUDIT_UNLOAD as well as
        PERF_BPF_EVENT_PROG_UNLOAD events
      - fix potential deadlock in htab_lock_bucket from same bucket
        index but different map_locked index

   - bluetooth:
      - fix a buffer overflow in mgmt_mesh_add()
      - hci_qca: fix driver shutdown on closed serdev
      - ISO: fix possible circular locking dependency
      - CIS: hci_event: fix invalid wait context

   - wifi: brcmfmac: fixes for survey dump handling

   - mptcp: explicitly specify sock family at subflow creation time

   - netfilter: nft_payload: incorrect arithmetics when fetching VLAN
     header bits

   - tcp: fix rate_app_limited to default to 1

   - l2tp: close all race conditions in l2tp_tunnel_register()

   - eth: mlx5: fixes for QoS config and eswitch configuration

   - eth: enetc: avoid deadlock in enetc_tx_onestep_tstamp()

   - eth: stmmac: fix invalid call to mdiobus_get_phy()

  Misc:

   - ethtool: add netlink attr in rss get reply only if the value is not
     empty"

* tag 'net-6.2-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits)
  Revert "Merge branch 'octeontx2-af-CPT'"
  tcp: fix rate_app_limited to default to 1
  bnxt: Do not read past the end of test names
  net: stmmac: enable all safety features by default
  octeontx2-af: add mbox to return CPT_AF_FLT_INT info
  octeontx2-af: update cpt lf alloc mailbox
  octeontx2-af: restore rxc conf after teardown sequence
  octeontx2-af: optimize cpt pf identification
  octeontx2-af: modify FLR sequence for CPT
  octeontx2-af: add mbox for CPT LF reset
  octeontx2-af: recover CPT engine when it gets fault
  net: dsa: microchip: ksz9477: port map correction in ALU table entry register
  selftests/net: toeplitz: fix race on tpacket_v3 block close
  net/ulp: use consistent error code when blocking ULP
  octeontx2-pf: Fix the use of GFP_KERNEL in atomic context on rt
  tcp: avoid the lookup process failing to get sk in ehash table
  Revert "net: team: use IFF_NO_ADDRCONF flag to prevent ipv6 addrconf"
  MAINTAINERS: add networking entries for Willem
  net: sched: gred: prevent races when adding offloads to stats
  l2tp: prevent lockdep issue in l2tp_tunnel_register()
  ...

Author: torvalds

MAINTAINERS

@@ -1104,7 +1104,6 @@ S:	Supported
 F:	arch/arm64/boot/dts/amd/
 
 AMD XGBE DRIVER
-M:	Tom Lendacky <thomas.lendacky@amd.com>
 M:	"Shyam Sundar S K" <Shyam-sundar.S-k@amd.com>
 L:	netdev@vger.kernel.org
 S:	Supported
@@ -15750,6 +15749,12 @@ S:	Maintained
 W:	https://wireless.wiki.kernel.org/en/users/Drivers/p54
 F:	drivers/net/wireless/intersil/p54/
 
+PACKET SOCKETS
+M:	Willem de Bruijn <willemdebruijn.kernel@gmail.com>
+S:	Maintained
+F:	include/uapi/linux/if_packet.h
+F:	net/packet/af_packet.c
+
 PACKING
 M:	Vladimir Oltean <olteanv@gmail.com>
 L:	netdev@vger.kernel.org
@@ -19326,6 +19331,13 @@ L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 S:	Orphan
 F:	sound/soc/uniphier/
 
+SOCKET TIMESTAMPING
+M:	Willem de Bruijn <willemdebruijn.kernel@gmail.com>
+S:	Maintained
+F:	Documentation/networking/timestamping.rst
+F:	include/uapi/linux/net_tstamp.h
+F:	tools/testing/selftests/net/so_txtime.c
+
 SOEKRIS NET48XX LED SUPPORT
 M:	Chris Boot <bootc@bootc.net>
 S:	Maintained
@@ -21746,6 +21758,13 @@ T:	git git://linuxtv.org/media_tree.git
 F:	Documentation/admin-guide/media/zr364xx*
 F:	drivers/staging/media/deprecated/zr364xx/
 
+USER DATAGRAM PROTOCOL (UDP)
+M:	Willem de Bruijn <willemdebruijn.kernel@gmail.com>
+S:	Maintained
+F:	include/linux/udp.h
+F:	net/ipv4/udp.c
+F:	net/ipv6/udp.c
+
 USER-MODE LINUX (UML)
 M:	Richard Weinberger <richard@nod.at>
 M:	Anton Ivanov <anton.ivanov@cambridgegreys.com>

drivers/bluetooth/hci_qca.c

@@ -2164,10 +2164,17 @@ static void qca_serdev_shutdown(struct device *dev)
 	int timeout = msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS);
 	struct serdev_device *serdev = to_serdev_device(dev);
 	struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
+	struct hci_uart *hu = &qcadev->serdev_hu;
+	struct hci_dev *hdev = hu->hdev;
+	struct qca_data *qca = hu->priv;
 	const u8 ibs_wake_cmd[] = { 0xFD };
 	const u8 edl_reset_soc_cmd[] = { 0x01, 0x00, 0xFC, 0x01, 0x05 };
 
 	if (qcadev->btsoc_type == QCA_QCA6390) {
+		if (test_bit(QCA_BT_OFF, &qca->flags) ||
+		    !test_bit(HCI_RUNNING, &hdev->flags))
+			return;
+
 		serdev_device_write_flush(serdev);
 		ret = serdev_device_write_buf(serdev, ibs_wake_cmd,
 					      sizeof(ibs_wake_cmd));

drivers/net/dsa/microchip/ksz9477.c

@@ -540,10 +540,10 @@ int ksz9477_fdb_del(struct ksz_device *dev, int port,
 		ksz_read32(dev, REG_SW_ALU_VAL_D, &alu_table[3]);
 
 		/* clear forwarding port */
-		alu_table[2] &= ~BIT(port);
+		alu_table[1] &= ~BIT(port);
 
 		/* if there is no port to forward, clear table */
-		if ((alu_table[2] & ALU_V_PORT_MAP) == 0) {
+		if ((alu_table[1] & ALU_V_PORT_MAP) == 0) {
 			alu_table[0] = 0;
 			alu_table[1] = 0;
 			alu_table[2] = 0;

drivers/net/ethernet/amd/xgbe/xgbe-dev.c

@@ -524,19 +524,28 @@ static void xgbe_disable_vxlan(struct xgbe_prv_data *pdata)
 	netif_dbg(pdata, drv, pdata->netdev, "VXLAN acceleration disabled\n");
 }
 
+static unsigned int xgbe_get_fc_queue_count(struct xgbe_prv_data *pdata)
+{
+	unsigned int max_q_count = XGMAC_MAX_FLOW_CONTROL_QUEUES;
+
+	/* From MAC ver 30H the TFCR is per priority, instead of per queue */
+	if (XGMAC_GET_BITS(pdata->hw_feat.version, MAC_VR, SNPSVER) >= 0x30)
+		return max_q_count;
+	else
+		return min_t(unsigned int, pdata->tx_q_count, max_q_count);
+}
+
 static int xgbe_disable_tx_flow_control(struct xgbe_prv_data *pdata)
 {
-	unsigned int max_q_count, q_count;
 	unsigned int reg, reg_val;
-	unsigned int i;
+	unsigned int i, q_count;
 
 	/* Clear MTL flow control */
 	for (i = 0; i < pdata->rx_q_count; i++)
 		XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, EHFC, 0);
 
 	/* Clear MAC flow control */
-	max_q_count = XGMAC_MAX_FLOW_CONTROL_QUEUES;
-	q_count = min_t(unsigned int, pdata->tx_q_count, max_q_count);
+	q_count = xgbe_get_fc_queue_count(pdata);
 	reg = MAC_Q0TFCR;
 	for (i = 0; i < q_count; i++) {
 		reg_val = XGMAC_IOREAD(pdata, reg);
@@ -553,9 +562,8 @@ static int xgbe_enable_tx_flow_control(struct xgbe_prv_data *pdata)
 {
 	struct ieee_pfc *pfc = pdata->pfc;
 	struct ieee_ets *ets = pdata->ets;
-	unsigned int max_q_count, q_count;
 	unsigned int reg, reg_val;
-	unsigned int i;
+	unsigned int i, q_count;
 
 	/* Set MTL flow control */
 	for (i = 0; i < pdata->rx_q_count; i++) {
@@ -579,8 +587,7 @@ static int xgbe_enable_tx_flow_control(struct xgbe_prv_data *pdata)
 	}
 
 	/* Set MAC flow control */
-	max_q_count = XGMAC_MAX_FLOW_CONTROL_QUEUES;
-	q_count = min_t(unsigned int, pdata->tx_q_count, max_q_count);
+	q_count = xgbe_get_fc_queue_count(pdata);
 	reg = MAC_Q0TFCR;
 	for (i = 0; i < q_count; i++) {
 		reg_val = XGMAC_IOREAD(pdata, reg);

drivers/net/ethernet/amd/xgbe/xgbe-mdio.c

@@ -496,6 +496,7 @@ static enum xgbe_an xgbe_an73_tx_training(struct xgbe_prv_data *pdata,
 	reg |= XGBE_KR_TRAINING_ENABLE;
 	reg |= XGBE_KR_TRAINING_START;
 	XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL, reg);
+	pdata->kr_start_time = jiffies;
 
 	netif_dbg(pdata, link, pdata->netdev,
 		  "KR training initiated\n");
@@ -632,6 +633,8 @@ static enum xgbe_an xgbe_an73_incompat_link(struct xgbe_prv_data *pdata)
 
 	xgbe_switch_mode(pdata);
 
+	pdata->an_result = XGBE_AN_READY;
+
 	xgbe_an_restart(pdata);
 
 	return XGBE_AN_INCOMPAT_LINK;
@@ -1275,9 +1278,30 @@ static bool xgbe_phy_aneg_done(struct xgbe_prv_data *pdata)
 static void xgbe_check_link_timeout(struct xgbe_prv_data *pdata)
 {
 	unsigned long link_timeout;
+	unsigned long kr_time;
+	int wait;
 
 	link_timeout = pdata->link_check + (XGBE_LINK_TIMEOUT * HZ);
 	if (time_after(jiffies, link_timeout)) {
+		if ((xgbe_cur_mode(pdata) == XGBE_MODE_KR) &&
+		    pdata->phy.autoneg == AUTONEG_ENABLE) {
+			/* AN restart should not happen while KR training is in progress.
+			 * The while loop ensures no AN restart during KR training,
+			 * waits up to 500ms and AN restart is triggered only if KR
+			 * training is failed.
+			 */
+			wait = XGBE_KR_TRAINING_WAIT_ITER;
+			while (wait--) {
+				kr_time = pdata->kr_start_time +
+					  msecs_to_jiffies(XGBE_AN_MS_TIMEOUT);
+				if (time_after(jiffies, kr_time))
+					break;
+				/* AN restart is not required, if AN result is COMPLETE */
+				if (pdata->an_result == XGBE_AN_COMPLETE)
+					return;
+				usleep_range(10000, 11000);
+			}
+		}
 		netif_dbg(pdata, link, pdata->netdev, "AN link timeout\n");
 		xgbe_phy_config_aneg(pdata);
 	}

drivers/net/ethernet/amd/xgbe/xgbe.h

@@ -290,6 +290,7 @@
 /* Auto-negotiation */
 #define XGBE_AN_MS_TIMEOUT		500
 #define XGBE_LINK_TIMEOUT		5
+#define XGBE_KR_TRAINING_WAIT_ITER	50
 
 #define XGBE_SGMII_AN_LINK_STATUS	BIT(1)
 #define XGBE_SGMII_AN_LINK_SPEED	(BIT(2) | BIT(3))
@@ -1280,6 +1281,7 @@ struct xgbe_prv_data {
 	unsigned int parallel_detect;
 	unsigned int fec_ability;
 	unsigned long an_start;
+	unsigned long kr_start_time;
 	enum xgbe_an_mode an_mode;
 
 	/* I2C support */

drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c

@@ -3969,7 +3969,7 @@ void bnxt_ethtool_init(struct bnxt *bp)
 		test_info->timeout = HWRM_CMD_TIMEOUT;
 	for (i = 0; i < bp->num_tests; i++) {
 		char *str = test_info->string[i];
-		char *fw_str = resp->test0_name + i * 32;
+		char *fw_str = resp->test_name[i];
 
 		if (i == BNXT_MACLPBK_TEST_IDX) {
 			strcpy(str, "Mac loopback test (offline)");
@@ -3980,14 +3980,9 @@ void bnxt_ethtool_init(struct bnxt *bp)
 		} else if (i == BNXT_IRQ_TEST_IDX) {
 			strcpy(str, "Interrupt_test (offline)");
 		} else {
-			strscpy(str, fw_str, ETH_GSTRING_LEN);
-			strncat(str, " test", ETH_GSTRING_LEN - strlen(str));
-			if (test_info->offline_mask & (1 << i))
-				strncat(str, " (offline)",
-					ETH_GSTRING_LEN - strlen(str));
-			else
-				strncat(str, " (online)",
-					ETH_GSTRING_LEN - strlen(str));
+			snprintf(str, ETH_GSTRING_LEN, "%s test (%s)",
+				 fw_str, test_info->offline_mask & (1 << i) ?
+					"offline" : "online");
 		}
 	}
 

drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h

@@ -10249,14 +10249,7 @@ struct hwrm_selftest_qlist_output {
 	u8	unused_0;
 	__le16	test_timeout;
 	u8	unused_1[2];
-	char	test0_name[32];
-	char	test1_name[32];
-	char	test2_name[32];
-	char	test3_name[32];
-	char	test4_name[32];
-	char	test5_name[32];
-	char	test6_name[32];
-	char	test7_name[32];
+	char	test_name[8][32];
 	u8	eyescope_target_BER_support;
 	#define SELFTEST_QLIST_RESP_EYESCOPE_TARGET_BER_SUPPORT_BER_1E8_SUPPORTED  0x0UL
 	#define SELFTEST_QLIST_RESP_EYESCOPE_TARGET_BER_SUPPORT_BER_1E9_SUPPORTED  0x1UL

drivers/net/ethernet/cadence/macb_main.c

@@ -2187,7 +2187,6 @@ static int macb_pad_and_fcs(struct sk_buff **skb, struct net_device *ndev)
 	bool cloned = skb_cloned(*skb) || skb_header_cloned(*skb) ||
 		      skb_is_nonlinear(*skb);
 	int padlen = ETH_ZLEN - (*skb)->len;
-	int headroom = skb_headroom(*skb);
 	int tailroom = skb_tailroom(*skb);
 	struct sk_buff *nskb;
 	u32 fcs;
@@ -2201,9 +2200,6 @@ static int macb_pad_and_fcs(struct sk_buff **skb, struct net_device *ndev)
 		/* FCS could be appeded to tailroom. */
 		if (tailroom >= ETH_FCS_LEN)
 			goto add_fcs;
-		/* FCS could be appeded by moving data to headroom. */
-		else if (!cloned && headroom + tailroom >= ETH_FCS_LEN)
-			padlen = 0;
 		/* No room for FCS, need to reallocate skb. */
 		else
 			padlen = ETH_FCS_LEN;
@@ -2212,10 +2208,7 @@ static int macb_pad_and_fcs(struct sk_buff **skb, struct net_device *ndev)
 		padlen += ETH_FCS_LEN;
 	}
 
-	if (!cloned && headroom + tailroom >= padlen) {
-		(*skb)->data = memmove((*skb)->head, (*skb)->data, (*skb)->len);
-		skb_set_tail_pointer(*skb, (*skb)->len);
-	} else {
+	if (cloned || tailroom < padlen) {
 		nskb = skb_copy_expand(*skb, 0, padlen, GFP_ATOMIC);
 		if (!nskb)
 			return -ENOMEM;

drivers/net/ethernet/freescale/enetc/enetc.c

@@ -2290,14 +2290,14 @@ static void enetc_tx_onestep_tstamp(struct work_struct *work)
 
 	priv = container_of(work, struct enetc_ndev_priv, tx_onestep_tstamp);
 
-	netif_tx_lock(priv->ndev);
+	netif_tx_lock_bh(priv->ndev);
 
 	clear_bit_unlock(ENETC_TX_ONESTEP_TSTAMP_IN_PROGRESS, &priv->flags);
 	skb = skb_dequeue(&priv->tx_skbs);
 	if (skb)
 		enetc_start_xmit(skb, priv->ndev);
 
-	netif_tx_unlock(priv->ndev);
+	netif_tx_unlock_bh(priv->ndev);
 }
 
 static void enetc_tx_onestep_tstamp_init(struct enetc_ndev_priv *priv)