Merge tag 'net-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
"Including fixes from bpf and netfilter.

Current release - regressions:

- netfilter: cttimeout: fix slab-out-of-bounds read in
cttimeout_net_exit

Current release - new code bugs:

- bpf: ftrace: keep address offset in ftrace_lookup_symbols

- bpf: force cookies array to follow symbols sorting

Previous releases - regressions:

- ipv4: ping: fix bind address validity check

- tipc: fix use-after-free read in tipc_named_reinit

- eth: veth: add updating of trans_start

Previous releases - always broken:

- sock: redo the psock vs ULP protection check

- netfilter: nf_dup_netdev: fix skb_under_panic

- bpf: fix request_sock leak in sk lookup helpers

- eth: igb: fix a use-after-free issue in igb_clean_tx_ring

- eth: ice: prohibit improper channel config for DCB

- eth: at803x: fix null pointer dereference on AR9331 phy

- eth: virtio_net: fix xdp_rxq_info bug after suspend/resume

Misc:

- eth: hinic: replace memcpy() with direct assignment"

* tag 'net-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
net: openvswitch: fix parsing of nw_proto for IPv6 fragments
sock: redo the psock vs ULP protection check
Revert "net/tls: fix tls_sk_proto_close executed repeatedly"
virtio_net: fix xdp_rxq_info bug after suspend/resume
igb: Make DMA faster when CPU is active on the PCIe link
net: dsa: qca8k: reduce mgmt ethernet timeout
net: dsa: qca8k: reset cpu port on MTU change
MAINTAINERS: Add a maintainer for OCP Time Card
hinic: Replace memcpy() with direct assignment
Revert "drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c"
net: phy: smsc: Disable Energy Detect Power-Down in interrupt mode
ice: ethtool: Prohibit improper channel config for DCB
ice: ethtool: advertise 1000M speeds properly
ice: Fix switchdev rules book keeping
ice: ignore protocol field in GTP offload
netfilter: nf_dup_netdev: add and use recursion counter
netfilter: nf_dup_netdev: do not push mac header a second time
selftests: netfilter: correct PKTGEN_SCRIPT_PATHS in nft_concat_range.sh
net/tls: fix tls_sk_proto_close executed repeatedly
erspan: do not assume transport header is always set
...

MAINTAINERS

···
 M:	Shubham Bansal <[e-mail]>
 L:	[e-mail]
 L:	[e-mail]
-S:	Maintained
+S:	Odd Fixes
 F:	arch/arm/net/
 
 BPF JIT for ARM64
···
 M:	Jakub Kicinski <[e-mail]>
 L:	[e-mail]
 L:	[e-mail]
-S:	Supported
+S:	Odd Fixes
 F:	drivers/net/ethernet/netronome/nfp/bpf/
 
 BPF JIT for POWERPC (32-BIT AND 64-BIT)
 M:	Naveen N. Rao <[e-mail]>
+M:	Michael Ellerman <[e-mail]>
 L:	[e-mail]
 L:	[e-mail]
-S:	Maintained
+S:	Supported
 F:	arch/powerpc/net/
 
 BPF JIT for RISC-V (32-bit)
···
 M:	Vasily Gorbik <[e-mail]>
 L:	[e-mail]
 L:	[e-mail]
-S:	Maintained
+S:	Supported
 F:	arch/s390/net/
 X:	arch/s390/net/pnet.c
 
···
 M:	David S. Miller <[e-mail]>
 L:	[e-mail]
 L:	[e-mail]
-S:	Maintained
+S:	Odd Fixes
 F:	arch/sparc/net/
 
 BPF JIT for X86 32-BIT
 M:	Wang YanQing <[e-mail]>
 L:	[e-mail]
 L:	[e-mail]
-S:	Maintained
+S:	Odd Fixes
 F:	arch/x86/net/bpf_jit_comp32.c
 
 BPF JIT for X86 64-BIT
···
 F:	include/linux/bpf_lsm.h
 F:	kernel/bpf/bpf_lsm.c
 F:	security/bpf/
+
+BPF L7 FRAMEWORK
+M:	John Fastabend <[e-mail]>
+M:	Jakub Sitnicki <[e-mail]>
+L:	[e-mail]
+L:	[e-mail]
+S:	Maintained
+F:	include/linux/skmsg.h
+F:	net/core/skmsg.c
+F:	net/core/sock_map.c
+F:	net/ipv4/tcp_bpf.c
+F:	net/ipv4/udp_bpf.c
+F:	net/unix/unix_bpf.c
 
 BPFTOOL
 M:	Quentin Monnet <[e-mail]>
···
 F:	include/net/l3mdev.h
 F:	net/l3mdev
 
-L7 BPF FRAMEWORK
-M:	John Fastabend <[e-mail]>
-M:	Daniel Borkmann <[e-mail]>
-M:	Jakub Sitnicki <[e-mail]>
-L:	[e-mail]
-L:	[e-mail]
-S:	Maintained
-F:	include/linux/skmsg.h
-F:	net/core/skmsg.c
-F:	net/core/sock_map.c
-F:	net/ipv4/tcp_bpf.c
-F:	net/ipv4/udp_bpf.c
-F:	net/unix/unix_bpf.c
-
 LANDLOCK SECURITY MODULE
 M:	Mickaël Salaün <[e-mail]>
 L:	[e-mail]
···
 NETWORKING [TLS]
 M:	Boris Pismenny <[e-mail]>
 M:	John Fastabend <[e-mail]>
-M:	Daniel Borkmann <[e-mail]>
 M:	Jakub Kicinski <[e-mail]>
 L:	[e-mail]
 S:	Maintained
···
 
 OPENCOMPUTE PTP CLOCK DRIVER
 M:	Jonathan Lemon <[e-mail]>
+M:	Vadim Fedorenko <[e-mail]>
 L:	[e-mail]
 S:	Maintained
 F:	drivers/ptp/ptp_ocp.c

arch/x86/net/bpf_jit_comp.c

···
 		case BPF_JMP | BPF_CALL:
 			func = (u8 *) __bpf_call_base + imm32;
 			if (tail_call_reachable) {
+				/* mov rax, qword ptr [rbp - rounded_stack_depth - 8] */
 				EMIT3_off32(0x48, 0x8B, 0x85,
-					    -(bpf_prog->aux->stack_depth + 8));
+					    -round_up(bpf_prog->aux->stack_depth, 8) - 8);
 				if (!imm32 || emit_call(&prog, func, image + addrs[i - 1] + 7))
 					return -EINVAL;
 			} else {

drivers/net/bonding/bond_main.c

···
 		if (!rtnl_trylock())
 			return;
 
-		if (should_notify_peers)
+		if (should_notify_peers) {
+			bond->send_peer_notif--;
 			call_netdevice_notifiers(NETDEV_NOTIFY_PEERS,
 						 bond->dev);
+		}
 		if (should_notify_rtnl) {
 			bond_slave_state_notify(bond);
 			bond_slave_link_notify(bond);

drivers/net/dsa/qca8k.c

···
 qca8k_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
 {
 	struct qca8k_priv *priv = ds->priv;
+	int ret;
 
 	/* We have only have a general MTU setting.
 	 * DSA always set the CPU port's MTU to the largest MTU of the slave
···
 	if (!dsa_is_cpu_port(ds, port))
 		return 0;
 
+	/* To change the MAX_FRAME_SIZE the cpu ports must be off or
+	 * the switch panics.
+	 * Turn off both cpu ports before applying the new value to prevent
+	 * this.
+	 */
+	if (priv->port_enabled_map & BIT(0))
+		qca8k_port_set_status(priv, 0, 0);
+
+	if (priv->port_enabled_map & BIT(6))
+		qca8k_port_set_status(priv, 6, 0);
+
 	/* Include L2 header / FCS length */
-	return qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, new_mtu + ETH_HLEN + ETH_FCS_LEN);
+	ret = qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, new_mtu + ETH_HLEN + ETH_FCS_LEN);
+
+	if (priv->port_enabled_map & BIT(0))
+		qca8k_port_set_status(priv, 0, 1);
+
+	if (priv->port_enabled_map & BIT(6))
+		qca8k_port_set_status(priv, 6, 1);
+
+	return ret;
 }
 
 static int

drivers/net/dsa/qca8k.h

···
 
 #define QCA8K_ETHERNET_MDIO_PRIORITY			7
 #define QCA8K_ETHERNET_PHY_PRIORITY			6
-#define QCA8K_ETHERNET_TIMEOUT				100
+#define QCA8K_ETHERNET_TIMEOUT				5
 
 #define QCA8K_NUM_PORTS					7
 #define QCA8K_NUM_CPU_PORTS				2

drivers/net/ethernet/huawei/hinic/hinic_devlink.c

···
 
 	for (i = 0; i < fw_image->fw_info.fw_section_cnt; i++) {
 		len += fw_image->fw_section_info[i].fw_section_len;
-		memcpy(&host_image->image_section_info[i],
-		       &fw_image->fw_section_info[i],
-		       sizeof(struct fw_section_info_st));
+		host_image->image_section_info[i] = fw_image->fw_section_info[i];
 	}
 
 	if (len != fw_image->fw_len ||

drivers/net/ethernet/intel/ice/ice_ethtool.c

···
 }
 
 /**
+ * ice_set_phy_type_from_speed - set phy_types based on speeds
+ * and advertised modes
+ * @ks: ethtool link ksettings struct
+ * @phy_type_low: pointer to the lower part of phy_type
+ * @phy_type_high: pointer to the higher part of phy_type
+ * @adv_link_speed: targeted link speeds bitmap
+ */
+static void
+ice_set_phy_type_from_speed(const struct ethtool_link_ksettings *ks,
+			    u64 *phy_type_low, u64 *phy_type_high,
+			    u16 adv_link_speed)
+{
+	/* Handle 1000M speed in a special way because ice_update_phy_type
+	 * enables all link modes, but having mixed copper and optical
+	 * standards is not supported.
+	 */
+	adv_link_speed &= ~ICE_AQ_LINK_SPEED_1000MB;
+
+	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
+						  1000baseT_Full))
+		*phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_T |
+				 ICE_PHY_TYPE_LOW_1G_SGMII;
+
+	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
+						  1000baseKX_Full))
+		*phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_KX;
+
+	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
+						  1000baseX_Full))
+		*phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_SX |
+				 ICE_PHY_TYPE_LOW_1000BASE_LX;
+
+	ice_update_phy_type(phy_type_low, phy_type_high, adv_link_speed);
+}
+
+/**
  * ice_set_link_ksettings - Set Speed and Duplex
  * @netdev: network interface device structure
  * @ks: ethtool ksettings
···
 		adv_link_speed = curr_link_speed;
 
 	/* Convert the advertise link speeds to their corresponded PHY_TYPE */
-	ice_update_phy_type(&phy_type_low, &phy_type_high, adv_link_speed);
+	ice_set_phy_type_from_speed(ks, &phy_type_low, &phy_type_high,
+				    adv_link_speed);
 
 	if (!autoneg_changed && adv_link_speed == curr_link_speed) {
 		netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
···
 	new_rx = ch->combined_count + ch->rx_count;
 	new_tx = ch->combined_count + ch->tx_count;
 
+	if (new_rx < vsi->tc_cfg.numtc) {
+		netdev_err(dev, "Cannot set less Rx channels, than Traffic Classes you have (%u)\n",
+			   vsi->tc_cfg.numtc);
+		return -EINVAL;
+	}
+	if (new_tx < vsi->tc_cfg.numtc) {
+		netdev_err(dev, "Cannot set less Tx channels, than Traffic Classes you have (%u)\n",
+			   vsi->tc_cfg.numtc);
+		return -EINVAL;
+	}
 	if (new_rx > ice_get_max_rxq(pf)) {
 		netdev_err(dev, "Maximum allowed Rx channels is %d\n",
 			   ice_get_max_rxq(pf));

drivers/net/ethernet/intel/ice/ice_lib.c

···
  * @vsi: the VSI being configured
  * @ctxt: VSI context structure
  */
-static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt)
+static int ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt)
 {
 	u16 offset = 0, qmap = 0, tx_count = 0, pow = 0;
 	u16 num_txq_per_tc, num_rxq_per_tc;
···
 	else
 		vsi->num_rxq = num_rxq_per_tc;
 
+	if (vsi->num_rxq > vsi->alloc_rxq) {
+		dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Rx queues (%u), than were allocated (%u)!\n",
+			vsi->num_rxq, vsi->alloc_rxq);
+		return -EINVAL;
+	}
+
 	vsi->num_txq = tx_count;
+	if (vsi->num_txq > vsi->alloc_txq) {
+		dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Tx queues (%u), than were allocated (%u)!\n",
+			vsi->num_txq, vsi->alloc_txq);
+		return -EINVAL;
+	}
 
 	if (vsi->type == ICE_VSI_VF && vsi->num_txq != vsi->num_rxq) {
 		dev_dbg(ice_pf_to_dev(vsi->back), "VF VSI should have same number of Tx and Rx queues. Hence making them equal\n");
···
 	 */
 	ctxt->info.q_mapping[0] = cpu_to_le16(vsi->rxq_map[0]);
 	ctxt->info.q_mapping[1] = cpu_to_le16(vsi->num_rxq);
+
+	return 0;
 }
 
 /**
···
 	if (vsi->type == ICE_VSI_CHNL) {
 		ice_chnl_vsi_setup_q_map(vsi, ctxt);
 	} else {
-		ice_vsi_setup_q_map(vsi, ctxt);
+		ret = ice_vsi_setup_q_map(vsi, ctxt);
+		if (ret)
+			goto out;
+
 		if (!init_vsi) /* means VSI being updated */
 			/* must to indicate which section of VSI context are
 			 * being modified
···
  *
  * Prepares VSI tc_config to have queue configurations based on MQPRIO options.
  */
-static void
+static int
 ice_vsi_setup_q_map_mqprio(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt,
 			   u8 ena_tc)
 {
···
 
 	/* Set actual Tx/Rx queue pairs */
 	vsi->num_txq = offset + qcount_tx;
+	if (vsi->num_txq > vsi->alloc_txq) {
+		dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Tx queues (%u), than were allocated (%u)!\n",
+			vsi->num_txq, vsi->alloc_txq);
+		return -EINVAL;
+	}
+
 	vsi->num_rxq = offset + qcount_rx;
+	if (vsi->num_rxq > vsi->alloc_rxq) {
+		dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Rx queues (%u), than were allocated (%u)!\n",
+			vsi->num_rxq, vsi->alloc_rxq);
+		return -EINVAL;
+	}
 
 	/* Setup queue TC[0].qmap for given VSI context */
 	ctxt->info.tc_mapping[0] = cpu_to_le16(qmap);
···
 	dev_dbg(ice_pf_to_dev(vsi->back), "vsi->num_rxq = %d\n",  vsi->num_rxq);
 	dev_dbg(ice_pf_to_dev(vsi->back), "all_numtc %u, all_enatc: 0x%04x, tc_cfg.numtc %u\n",
 		vsi->all_numtc, vsi->all_enatc, vsi->tc_cfg.numtc);
+
+	return 0;
 }
 
 /**
···
 
 	if (vsi->type == ICE_VSI_PF &&
 	    test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))
-		ice_vsi_setup_q_map_mqprio(vsi, ctx, ena_tc);
+		ret = ice_vsi_setup_q_map_mqprio(vsi, ctx, ena_tc);
 	else
-		ice_vsi_setup_q_map(vsi, ctx);
+		ret = ice_vsi_setup_q_map(vsi, ctx);
+
+	if (ret)
+		goto out;
 
 	/* must to indicate which section of VSI context are being modified */
 	ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID);

drivers/net/ethernet/intel/ice/ice_tc_lib.c

···
 	 */
 	fltr->rid = rule_added.rid;
 	fltr->rule_id = rule_added.rule_id;
+	fltr->dest_id = rule_added.vsi_handle;
 
 exit:
 	kfree(list);
···
 		n_proto_key = ntohs(match.key->n_proto);
 		n_proto_mask = ntohs(match.mask->n_proto);
 
-		if (n_proto_key == ETH_P_ALL || n_proto_key == 0) {
+		if (n_proto_key == ETH_P_ALL || n_proto_key == 0 ||
+		    fltr->tunnel_type == TNL_GTPU ||
+		    fltr->tunnel_type == TNL_GTPC) {
 			n_proto_key = 0;
 			n_proto_mask = 0;
 		} else {

drivers/net/ethernet/intel/igb/igb_main.c

···
 	while (i != tx_ring->next_to_use) {
 		union e1000_adv_tx_desc *eop_desc, *tx_desc;
 
-		/* Free all the Tx ring sk_buffs */
-		dev_kfree_skb_any(tx_buffer->skb);
+		/* Free all the Tx ring sk_buffs or xdp frames */
+		if (tx_buffer->type == IGB_TYPE_SKB)
+			dev_kfree_skb_any(tx_buffer->skb);
+		else
+			xdp_return_frame(tx_buffer->xdpf);
 
 		/* unmap skb header data */
 		dma_unmap_single(tx_ring->dev,
···
 	struct e1000_hw *hw = &adapter->hw;
 	u32 dmac_thr;
 	u16 hwm;
+	u32 reg;
 
 	if (hw->mac.type > e1000_82580) {
 		if (adapter->flags & IGB_FLAG_DMAC) {
-			u32 reg;
-
 			/* force threshold to 0. */
 			wr32(E1000_DMCTXTH, 0);
 
···
 			/* Disable BMC-to-OS Watchdog Enable */
 			if (hw->mac.type != e1000_i354)
 				reg &= ~E1000_DMACR_DC_BMC2OSW_EN;
-
 			wr32(E1000_DMACR, reg);
 
 			/* no lower threshold to disable
···
 			 */
 			wr32(E1000_DMCTXTH, (IGB_MIN_TXPBSIZE -
 			     (IGB_TX_BUF_4096 + adapter->max_frame_size)) >> 6);
+		}
 
-			/* make low power state decision controlled
-			 * by DMA coal
-			 */
+		if (hw->mac.type >= e1000_i210 ||
+		    (adapter->flags & IGB_FLAG_DMAC)) {
 			reg = rd32(E1000_PCIEMISC);
-			reg &= ~E1000_PCIEMISC_LX_DECISION;
+			reg |= E1000_PCIEMISC_LX_DECISION;
 			wr32(E1000_PCIEMISC, reg);
 		} /* endif adapter->dmac is not disabled */
 	} else if (hw->mac.type == e1000_82580) {

drivers/net/hamradio/6pack.c

···
 
 	unsigned int		rx_count;
 	unsigned int		rx_count_cooked;
+	spinlock_t		rxlock;
 
 	int			mtu;		/* Our mtu (to spot changes!) */
 	int			buffsize;       /* Max buffers sizes */
···
 	sp->dev = dev;
 
 	spin_lock_init(&sp->lock);
+	spin_lock_init(&sp->rxlock);
 	refcount_set(&sp->refcnt, 1);
 	init_completion(&sp->dead);
 
···
 			sp->led_state = 0x60;
 			/* fill trailing bytes with zeroes */
 			sp->tty->ops->write(sp->tty, &sp->led_state, 1);
+			spin_lock_bh(&sp->rxlock);
 			rest = sp->rx_count;
 			if (rest != 0)
 				 for (i = rest; i <= 3; i++)
···
 				sp_bump(sp, 0);
 			}
 			sp->rx_count_cooked = 0;
+			spin_unlock_bh(&sp->rxlock);
 		}
 		break;
 	case SIXP_TX_URUN: printk(KERN_DEBUG "6pack: TX underrun\n");
···
 			decode_prio_command(sp, inbyte);
 		else if ((inbyte & SIXP_STD_CMD_MASK) != 0)
 			decode_std_command(sp, inbyte);
-		else if ((sp->status & SIXP_RX_DCD_MASK) == SIXP_RX_DCD_MASK)
+		else if ((sp->status & SIXP_RX_DCD_MASK) == SIXP_RX_DCD_MASK) {
+			spin_lock_bh(&sp->rxlock);
 			decode_data(sp, inbyte);
+			spin_unlock_bh(&sp->rxlock);
+		}
 	}
 }
 

drivers/net/phy/aquantia_main.c

···
 #define MDIO_AN_VEND_PROV			0xc400
 #define MDIO_AN_VEND_PROV_1000BASET_FULL	BIT(15)
 #define MDIO_AN_VEND_PROV_1000BASET_HALF	BIT(14)
+#define MDIO_AN_VEND_PROV_5000BASET_FULL	BIT(11)
+#define MDIO_AN_VEND_PROV_2500BASET_FULL	BIT(10)
 #define MDIO_AN_VEND_PROV_DOWNSHIFT_EN		BIT(4)
 #define MDIO_AN_VEND_PROV_DOWNSHIFT_MASK	GENMASK(3, 0)
 #define MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT	4
···
 			      phydev->advertising))
 		reg |= MDIO_AN_VEND_PROV_1000BASET_HALF;
 
+	/* Handle the case when the 2.5G and 5G speeds are not advertised */
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
+			      phydev->advertising))
+		reg |= MDIO_AN_VEND_PROV_2500BASET_FULL;
+
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
+			      phydev->advertising))
+		reg |= MDIO_AN_VEND_PROV_5000BASET_FULL;
+
 	ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_VEND_PROV,
 				     MDIO_AN_VEND_PROV_1000BASET_HALF |
-				     MDIO_AN_VEND_PROV_1000BASET_FULL, reg);
+				     MDIO_AN_VEND_PROV_1000BASET_FULL |
+				     MDIO_AN_VEND_PROV_2500BASET_FULL |
+				     MDIO_AN_VEND_PROV_5000BASET_FULL, reg);
 	if (ret < 0)
 		return ret;
 	if (ret > 0)

drivers/net/phy/at803x.c

···
 	/* ATHEROS AR9331 */
 	PHY_ID_MATCH_EXACT(ATH9331_PHY_ID),
 	.name			= "Qualcomm Atheros AR9331 built-in PHY",
+	.probe			= at803x_probe,
+	.remove			= at803x_remove,
 	.suspend		= at803x_suspend,
 	.resume			= at803x_resume,
 	.flags			= PHY_POLL_CABLE_TEST,
···
 	/* Qualcomm Atheros QCA9561 */
 	PHY_ID_MATCH_EXACT(QCA9561_PHY_ID),
 	.name			= "Qualcomm Atheros QCA9561 built-in PHY",
+	.probe			= at803x_probe,
+	.remove			= at803x_remove,
 	.suspend		= at803x_suspend,
 	.resume			= at803x_resume,
 	.flags			= PHY_POLL_CABLE_TEST,
···
 	PHY_ID_MATCH_EXACT(QCA8081_PHY_ID),
 	.name			= "Qualcomm QCA8081",
 	.flags			= PHY_POLL_CABLE_TEST,
+	.probe			= at803x_probe,
+	.remove			= at803x_remove,
 	.config_intr		= at803x_config_intr,
 	.handle_interrupt	= at803x_handle_interrupt,
 	.get_tunable		= at803x_get_tunable,

drivers/net/phy/smsc.c

···
 	struct smsc_phy_priv *priv = phydev->priv;
 	int rc;
 
-	if (!priv->energy_enable)
+	if (!priv->energy_enable || phydev->irq != PHY_POLL)
 		return 0;
 
 	rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
···
  * response on link pulses to detect presence of plugged Ethernet cable.
  * The Energy Detect Power-Down mode is enabled again in the end of procedure to
  * save approximately 220 mW of power if cable is unplugged.
+ * The workaround is only applicable to poll mode. Energy Detect Power-Down may
+ * not be used in interrupt mode lest link change detection becomes unreliable.
  */
 static int lan87xx_read_status(struct phy_device *phydev)
 {
···
 
 	int err = genphy_read_status(phydev);
 
-	if (!phydev->link && priv->energy_enable) {
+	if (!phydev->link && priv->energy_enable && phydev->irq == PHY_POLL) {
 		/* Disable EDPD to wake up PHY */
 		int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
 		if (rc < 0)

drivers/net/veth.c

···
 static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct veth_priv *rcv_priv, *priv = netdev_priv(dev);
+	struct netdev_queue *queue = NULL;
 	struct veth_rq *rq = NULL;
 	struct net_device *rcv;
 	int length = skb->len;
···
 	rxq = skb_get_queue_mapping(skb);
 	if (rxq < rcv->real_num_rx_queues) {
 		rq = &rcv_priv->rq[rxq];
+		queue = netdev_get_tx_queue(dev, rxq);
 
 		/* The napi pointer is available when an XDP program is
 		 * attached or when GRO is enabled
···
 
 	skb_tx_timestamp(skb);
 	if (likely(veth_forward_skb(rcv, skb, rq, use_napi) == NET_RX_SUCCESS)) {
+		if (queue)
+			txq_trans_cond_update(queue);
 		if (!use_napi)
 			dev_lstats_add(dev, length);
 	} else {

drivers/net/virtio_net.c

···
 static void virtnet_freeze_down(struct virtio_device *vdev)
 {
 	struct virtnet_info *vi = vdev->priv;
-	int i;
 
 	/* Make sure no work handler is accessing the device */
 	flush_work(&vi->config_work);
···
 	netif_tx_lock_bh(vi->dev);
 	netif_device_detach(vi->dev);
 	netif_tx_unlock_bh(vi->dev);
-	cancel_delayed_work_sync(&vi->refill);
-
-	if (netif_running(vi->dev)) {
-		for (i = 0; i < vi->max_queue_pairs; i++) {
-			napi_disable(&vi->rq[i].napi);
-			virtnet_napi_tx_disable(&vi->sq[i].napi);
-		}
-	}
+	if (netif_running(vi->dev))
+		virtnet_close(vi->dev);
 }
 
 static int init_vqs(struct virtnet_info *vi);
···
 static int virtnet_restore_up(struct virtio_device *vdev)
 {
 	struct virtnet_info *vi = vdev->priv;
-	int err, i;
+	int err;
 
 	err = init_vqs(vi);
 	if (err)
···
 	virtio_device_ready(vdev);
 
 	if (netif_running(vi->dev)) {
-		for (i = 0; i < vi->curr_queue_pairs; i++)
-			if (!try_fill_recv(vi, &vi->rq[i], GFP_KERNEL))
-				schedule_delayed_work(&vi->refill, 0);
-
-		for (i = 0; i < vi->max_queue_pairs; i++) {
-			virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi);
-			virtnet_napi_tx_enable(vi, vi->sq[i].vq,
-					       &vi->sq[i].napi);
-		}
+		err = virtnet_open(vi->dev);
+		if (err)
+			return err;
 	}
 
 	netif_tx_lock_bh(vi->dev);

include/net/inet_sock.h

···
 #define IP_CMSG_CHECKSUM	BIT(7)
 #define IP_CMSG_RECVFRAGSIZE	BIT(8)
 
+static inline bool sk_is_inet(struct sock *sk)
+{
+	return sk->sk_family == AF_INET || sk->sk_family == AF_INET6;
+}
+
 /**
  * sk_to_full_sk - Access to a full socket
  * @sk: pointer to a socket

kernel/bpf/btf.c

···
 	n = btf_nr_types(btf);
 	for (i = start_id; i < n; i++) {
 		const struct btf_type *t;
+		int chain_limit = 32;
 		u32 cur_id = i;
 
 		t = btf_type_by_id(btf, i);
···
 
 		in_tags = btf_type_is_type_tag(t);
 		while (btf_type_is_modifier(t)) {
+			if (!chain_limit--) {
+				btf_verifier_log(env, "Max chain length or cycle detected");
+				return -ELOOP;
+			}
 			if (btf_type_is_type_tag(t)) {
 				if (!in_tags) {
 					btf_verifier_log(env, "Type tags don't precede modifiers");

kernel/trace/bpf_trace.c

···
 	kprobe_multi_link_prog_run(link, entry_ip, regs);
 }
 
-static int symbols_cmp(const void *a, const void *b)
+static int symbols_cmp_r(const void *a, const void *b, const void *priv)
 {
 	const char **str_a = (const char **) a;
 	const char **str_b = (const char **) b;
 
 	return strcmp(*str_a, *str_b);
+}
+
+struct multi_symbols_sort {
+	const char **funcs;
+	u64 *cookies;
+};
+
+static void symbols_swap_r(void *a, void *b, int size, const void *priv)
+{
+	const struct multi_symbols_sort *data = priv;
+	const char **name_a = a, **name_b = b;
+
+	swap(*name_a, *name_b);
+
+	/* If defined, swap also related cookies. */
+	if (data->cookies) {
+		u64 *cookie_a, *cookie_b;
+
+		cookie_a = data->cookies + (name_a - data->funcs);
+		cookie_b = data->cookies + (name_b - data->funcs);
+		swap(*cookie_a, *cookie_b);
+	}
 }
 
 int bpf_kprobe_multi_link_attach(const union bpf_attr *attr, struct bpf_prog *prog)
···
 	if (!addrs)
 		return -ENOMEM;
 
-	if (uaddrs) {
-		if (copy_from_user(addrs, uaddrs, size)) {
-			err = -EFAULT;
-			goto error;
-		}
-	} else {
-		struct user_syms us;
-
-		err = copy_user_syms(&us, usyms, cnt);
-		if (err)
-			goto error;
-
-		sort(us.syms, cnt, sizeof(*us.syms), symbols_cmp, NULL);
-		err = ftrace_lookup_symbols(us.syms, cnt, addrs);
-		free_user_syms(&us);
-		if (err)
-			goto error;
-	}
-
 	ucookies = u64_to_user_ptr(attr->link_create.kprobe_multi.cookies);
 	if (ucookies) {
 		cookies = kvmalloc_array(cnt, sizeof(*addrs), GFP_KERNEL);
···
 			err = -EFAULT;
 			goto error;
 		}
+	}
+
+	if (uaddrs) {
+		if (copy_from_user(addrs, uaddrs, size)) {
+			err = -EFAULT;
+			goto error;
+		}
+	} else {
+		struct multi_symbols_sort data = {
+			.cookies = cookies,
+		};
+		struct user_syms us;
+
+		err = copy_user_syms(&us, usyms, cnt);
+		if (err)
+			goto error;
+
+		if (cookies)
+			data.funcs = us.syms;
+
+		sort_r(us.syms, cnt, sizeof(*us.syms), symbols_cmp_r,
+		       symbols_swap_r, &data);
+
+		err = ftrace_lookup_symbols(us.syms, cnt, addrs);
+		free_user_syms(&us);
+		if (err)
+			goto error;
 	}
 
 	link = kzalloc(sizeof(*link), GFP_KERNEL);

kernel/trace/ftrace.c

···
 			     struct module *mod, unsigned long addr)
 {
 	struct kallsyms_data *args = data;
+	const char **sym;
+	int idx;
 
-	if (!bsearch(&name, args->syms, args->cnt, sizeof(*args->syms), symbols_cmp))
+	sym = bsearch(&name, args->syms, args->cnt, sizeof(*args->syms), symbols_cmp);
+	if (!sym)
+		return 0;
+
+	idx = sym - args->syms;
+	if (args->addrs[idx])
 		return 0;
 
 	addr = ftrace_location(addr);
 	if (!addr)
 		return 0;
 
-	args->addrs[args->found++] = addr;
+	args->addrs[idx] = addr;
+	args->found++;
 	return args->found == args->cnt ? 1 : 0;
 }
 
···
 	struct kallsyms_data args;
 	int err;
 
+	memset(addrs, 0, sizeof(*addrs) * cnt);
 	args.addrs = addrs;
 	args.syms = sorted_syms;
 	args.cnt = cnt;

kernel/trace/rethook.c

···
 	if (unlikely(!handler))
 		return NULL;
 
+	/*
+	 * This expects the caller will set up a rethook on a function entry.
+	 * When the function returns, the rethook will eventually be reclaimed
+	 * or released in the rethook_recycle() with call_rcu().
+	 * This means the caller must be run in the RCU-availabe context.
+	 */
+	if (unlikely(!rcu_is_watching()))
+		return NULL;
+
 	fn = freelist_try_get(&rh->pool);
 	if (!fn)
 		return NULL;

net/core/dev.c

···
 /* Device list removal
  * caller must respect a RCU grace period before freeing/reusing dev
  */
-static void unlist_netdevice(struct net_device *dev)
+static void unlist_netdevice(struct net_device *dev, bool lock)
 {
 	ASSERT_RTNL();
 
 	/* Unlink dev from the device chain */
-	write_lock(&dev_base_lock);
+	if (lock)
+		write_lock(&dev_base_lock);
 	list_del_rcu(&dev->dev_list);
 	netdev_name_node_del(dev->name_node);
 	hlist_del_rcu(&dev->index_hlist);
-	write_unlock(&dev_base_lock);
+	if (lock)
+		write_unlock(&dev_base_lock);
 
 	dev_base_seq_inc(dev_net(dev));
 }
···
 		goto err_uninit;
 
 	ret = netdev_register_kobject(dev);
-	if (ret) {
-		dev->reg_state = NETREG_UNREGISTERED;
+	write_lock(&dev_base_lock);
+	dev->reg_state = ret ? NETREG_UNREGISTERED : NETREG_REGISTERED;
+	write_unlock(&dev_base_lock);
+	if (ret)
 		goto err_uninit;
-	}
-	dev->reg_state = NETREG_REGISTERED;
 
 	__netdev_update_features(dev);
 
···
 			continue;
 		}
 
+		write_lock(&dev_base_lock);
 		dev->reg_state = NETREG_UNREGISTERED;
+		write_unlock(&dev_base_lock);
 		linkwatch_forget_dev(dev);
 	}
 
···
 
 	list_for_each_entry(dev, head, unreg_list) {
 		/* And unlink it from device chain. */
-		unlist_netdevice(dev);
-
+		write_lock(&dev_base_lock);
+		unlist_netdevice(dev, false);
 		dev->reg_state = NETREG_UNREGISTERING;
+		write_unlock(&dev_base_lock);
 	}
 	flush_all_backlogs();
 
···
 	dev_close(dev);
 
 	/* And unlink it from device chain */
-	unlist_netdevice(dev);
+	unlist_netdevice(dev, true);
 
 	synchronize_net();
 

net/core/filter.c

···
 					   ifindex, proto, netns_id, flags);
 
 	if (sk) {
-		sk = sk_to_full_sk(sk);
-		if (!sk_fullsock(sk)) {
+		struct sock *sk2 = sk_to_full_sk(sk);
+
+		/* sk_to_full_sk() may return (sk)->rsk_listener, so make sure the original sk
+		 * sock refcnt is decremented to prevent a request_sock leak.
+		 */
+		if (!sk_fullsock(sk2))
+			sk2 = NULL;
+		if (sk2 != sk) {
 			sock_gen_put(sk);
-			return NULL;
+			/* Ensure there is no need to bump sk2 refcnt */
+			if (unlikely(sk2 && !sock_flag(sk2, SOCK_RCU_FREE))) {
+				WARN_ONCE(1, "Found non-RCU, unreferenced socket!");
+				return NULL;
+			}
+			sk = sk2;
 		}
 	}
 
···
 					 flags);
 
 	if (sk) {
-		sk = sk_to_full_sk(sk);
-		if (!sk_fullsock(sk)) {
+		struct sock *sk2 = sk_to_full_sk(sk);
+
+		/* sk_to_full_sk() may return (sk)->rsk_listener, so make sure the original sk
+		 * sock refcnt is decremented to prevent a request_sock leak.
+		 */
+		if (!sk_fullsock(sk2))
+			sk2 = NULL;
+		if (sk2 != sk) {
 			sock_gen_put(sk);
-			return NULL;
+			/* Ensure there is no need to bump sk2 refcnt */
+			if (unlikely(sk2 && !sock_flag(sk2, SOCK_RCU_FREE))) {
+				WARN_ONCE(1, "Found non-RCU, unreferenced socket!");
+				return NULL;
+			}
+			sk = sk2;
 		}
 	}
 

net/core/net-sysfs.c

···
 static const char fmt_ulong[] = "%lu\n";
 static const char fmt_u64[] = "%llu\n";
 
+/* Caller holds RTNL or dev_base_lock */
 static inline int dev_isalive(const struct net_device *dev)
 {
 	return dev->reg_state <= NETREG_REGISTERED;

net/core/skmsg.c

···
 
 	write_lock_bh(&sk->sk_callback_lock);
 
+	if (sk_is_inet(sk) && inet_csk_has_ulp(sk)) {
+		psock = ERR_PTR(-EINVAL);
+		goto out;
+	}
+
 	if (sk->sk_user_data) {
 		psock = ERR_PTR(-EBUSY);
 		goto out;

net/ethtool/eeprom.c

···
 	if (request->page)
 		offset = request->page * ETH_MODULE_EEPROM_PAGE_LEN + offset;
 
-	if (modinfo->type == ETH_MODULE_SFF_8079 &&
+	if (modinfo->type == ETH_MODULE_SFF_8472 &&
 	    request->i2c_address == 0x51)
 		offset += ETH_MODULE_EEPROM_PAGE_LEN * 2;
 

net/ipv4/ip_gre.c

···
 	int tunnel_hlen;
 	int version;
 	int nhoff;
-	int thoff;
 
 	tun_info = skb_tunnel_info(skb);
 	if (unlikely(!tun_info || !(tun_info->mode & IP_TUNNEL_INFO_TX) ||
···
 	    (ntohs(ip_hdr(skb)->tot_len) > skb->len - nhoff))
 		truncate = true;
 
-	thoff = skb_transport_header(skb) - skb_mac_header(skb);
-	if (skb->protocol == htons(ETH_P_IPV6) &&
-	    (ntohs(ipv6_hdr(skb)->payload_len) > skb->len - thoff))
-		truncate = true;
+	if (skb->protocol == htons(ETH_P_IPV6)) {
+		int thoff;
+
+		if (skb_transport_header_was_set(skb))
+			thoff = skb_transport_header(skb) - skb_mac_header(skb);
+		else
+			thoff = nhoff + sizeof(struct ipv6hdr);
+		if (ntohs(ipv6_hdr(skb)->payload_len) > skb->len - thoff)
+			truncate = true;
+	}
 
 	if (version == 1) {
 		erspan_build_header(skb, ntohl(tunnel_id_to_key32(key->tun_id)),

net/ipv4/ping.c

···
 		pr_debug("ping_check_bind_addr(sk=%p,addr=%pI4,port=%d)\n",
 			 sk, &addr->sin_addr.s_addr, ntohs(addr->sin_port));
 
+		if (addr->sin_addr.s_addr == htonl(INADDR_ANY))
+			return 0;
+
 		tb_id = l3mdev_fib_table_by_index(net, sk->sk_bound_dev_if) ? : tb_id;
 		chk_addr_ret = inet_addr_type_table(net, addr->sin_addr.s_addr, tb_id);
 
-		if (!inet_addr_valid_or_nonlocal(net, inet_sk(sk),
-					         addr->sin_addr.s_addr,
-	                                         chk_addr_ret))
+		if (chk_addr_ret == RTN_MULTICAST ||
+		    chk_addr_ret == RTN_BROADCAST ||
+		    (chk_addr_ret != RTN_LOCAL &&
+		     !inet_can_nonlocal_bind(net, isk)))
 			return -EADDRNOTAVAIL;
 
 #if IS_ENABLED(CONFIG_IPV6)

net/ipv4/tcp_bpf.c

···
 		return 0;
 	}
 
-	if (inet_csk_has_ulp(sk))
-		return -EINVAL;
-
 	if (sk->sk_family == AF_INET6) {
 		if (tcp_bpf_assert_proto_ops(psock->sk_proto))
 			return -EINVAL;

net/ipv6/ip6_gre.c

···
 	__be16 proto;
 	__u32 mtu;
 	int nhoff;
-	int thoff;
 
 	if (!pskb_inet_may_pull(skb))
 		goto tx_err;
···
 	    (ntohs(ip_hdr(skb)->tot_len) > skb->len - nhoff))
 		truncate = true;
 
-	thoff = skb_transport_header(skb) - skb_mac_header(skb);
-	if (skb->protocol == htons(ETH_P_IPV6) &&
-	    (ntohs(ipv6_hdr(skb)->payload_len) > skb->len - thoff))
-		truncate = true;
+	if (skb->protocol == htons(ETH_P_IPV6)) {
+		int thoff;
+
+		if (skb_transport_header_was_set(skb))
+			thoff = skb_transport_header(skb) - skb_mac_header(skb);
+		else
+			thoff = nhoff + sizeof(struct ipv6hdr);
+		if (ntohs(ipv6_hdr(skb)->payload_len) > skb->len - thoff)
+			truncate = true;
+	}
 
 	if (skb_cow_head(skb, dev->needed_headroom ?: t->hlen))
 		goto tx_err;

net/netfilter/nf_dup_netdev.c

···
 #include <net/netfilter/nf_tables_offload.h>
 #include <net/netfilter/nf_dup_netdev.h>
 
-static void nf_do_netdev_egress(struct sk_buff *skb, struct net_device *dev)
+#define NF_RECURSION_LIMIT	2
+
+static DEFINE_PER_CPU(u8, nf_dup_skb_recursion);
+
+static void nf_do_netdev_egress(struct sk_buff *skb, struct net_device *dev,
+				enum nf_dev_hooks hook)
 {
-	if (skb_mac_header_was_set(skb))
+	if (__this_cpu_read(nf_dup_skb_recursion) > NF_RECURSION_LIMIT)
+		goto err;
+
+	if (hook == NF_NETDEV_INGRESS && skb_mac_header_was_set(skb)) {
+		if (skb_cow_head(skb, skb->mac_len))
+			goto err;
+
 		skb_push(skb, skb->mac_len);
+	}
 
 	skb->dev = dev;
 	skb_clear_tstamp(skb);
+	__this_cpu_inc(nf_dup_skb_recursion);
 	dev_queue_xmit(skb);
+	__this_cpu_dec(nf_dup_skb_recursion);
+	return;
+err:
+	kfree_skb(skb);
 }
 
 void nf_fwd_netdev_egress(const struct nft_pktinfo *pkt, int oif)
···
 		return;
 	}
 
-	nf_do_netdev_egress(pkt->skb, dev);
+	nf_do_netdev_egress(pkt->skb, dev, nft_hook(pkt));
 }
 EXPORT_SYMBOL_GPL(nf_fwd_netdev_egress);
 
···
 
 	skb = skb_clone(pkt->skb, GFP_ATOMIC);
 	if (skb)
-		nf_do_netdev_egress(skb, dev);
+		nf_do_netdev_egress(skb, dev, nft_hook(pkt));
 }
 EXPORT_SYMBOL_GPL(nf_dup_netdev_egress);
 

net/netfilter/nfnetlink_cttimeout.c

···
 
 	nf_ct_untimeout(net, NULL);
 
-	list_for_each_entry_safe(cur, tmp, &pernet->nfct_timeout_freelist, head) {
+	list_for_each_entry_safe(cur, tmp, &pernet->nfct_timeout_freelist, free_head) {
 		list_del(&cur->free_head);
 
 		if (refcount_dec_and_test(&cur->refcnt))

net/netfilter/nft_meta.c

···
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
+#include <linux/random.h>
 #include <linux/smp.h>
 #include <linux/static_key.h>
 #include <net/dst.h>
···
 #define NFT_META_SECS_PER_HOUR		3600
 #define NFT_META_SECS_PER_DAY		86400
 #define NFT_META_DAYS_PER_WEEK		7
-
-static DEFINE_PER_CPU(struct rnd_state, nft_prandom_state);
 
 static u8 nft_meta_weekday(void)
 {
···
 	return true;
 }
 
-static noinline u32 nft_prandom_u32(void)
-{
-	struct rnd_state *state = this_cpu_ptr(&nft_prandom_state);
-
-	return prandom_u32_state(state);
-}
-
 #ifdef CONFIG_IP_ROUTE_CLASSID
 static noinline bool
 nft_meta_get_eval_rtclassid(const struct sk_buff *skb, u32 *dest)
···
 		break;
 #endif
 	case NFT_META_PRANDOM:
-		*dest = nft_prandom_u32();
+		*dest = get_random_u32();
 		break;
 #ifdef CONFIG_XFRM
 	case NFT_META_SECPATH:
···
 		len = IFNAMSIZ;
 		break;
 	case NFT_META_PRANDOM:
-		prandom_init_once(&nft_prandom_state);
 		len = sizeof(u32);
 		break;
 #ifdef CONFIG_XFRM

net/netfilter/nft_numgen.c

···
 #include <linux/netlink.h>
 #include <linux/netfilter.h>
 #include <linux/netfilter/nf_tables.h>
+#include <linux/random.h>
 #include <linux/static_key.h>
 #include <net/netfilter/nf_tables.h>
 #include <net/netfilter/nf_tables_core.h>
-
-static DEFINE_PER_CPU(struct rnd_state, nft_numgen_prandom_state);
 
 struct nft_ng_inc {
 	u8			dreg;
···
 	u32			offset;
 };
 
-static u32 nft_ng_random_gen(struct nft_ng_random *priv)
+static u32 nft_ng_random_gen(const struct nft_ng_random *priv)
 {
-	struct rnd_state *state = this_cpu_ptr(&nft_numgen_prandom_state);
-
-	return reciprocal_scale(prandom_u32_state(state), priv->modulus) +
-	       priv->offset;
+	return reciprocal_scale(get_random_u32(), priv->modulus) + priv->offset;
 }
 
 static void nft_ng_random_eval(const struct nft_expr *expr,
···
 
 	if (priv->offset + priv->modulus - 1 < priv->offset)
 		return -EOVERFLOW;
-
-	prandom_init_once(&nft_numgen_prandom_state);
 
 	return nft_parse_register_store(ctx, tb[NFTA_NG_DREG], &priv->dreg,
 					NULL, NFT_DATA_VALUE, sizeof(u32));

net/openvswitch/flow.c

···
 	if (flags & IP6_FH_F_FRAG) {
 		if (frag_off) {
 			key->ip.frag = OVS_FRAG_TYPE_LATER;
-			key->ip.proto = nexthdr;
+			key->ip.proto = NEXTHDR_FRAGMENT;
 			return 0;
 		}
 		key->ip.frag = OVS_FRAG_TYPE_FIRST;

net/sched/sch_netem.c

···
 	struct tc_netem_rate rate;
 	struct tc_netem_slot slot;
 
-	qopt.latency = min_t(psched_tdiff_t, PSCHED_NS2TICKS(q->latency),
+	qopt.latency = min_t(psched_time_t, PSCHED_NS2TICKS(q->latency),
 			     UINT_MAX);
-	qopt.jitter = min_t(psched_tdiff_t, PSCHED_NS2TICKS(q->jitter),
+	qopt.jitter = min_t(psched_time_t, PSCHED_NS2TICKS(q->jitter),
 			    UINT_MAX);
 	qopt.limit = q->limit;
 	qopt.loss = q->loss;

net/tipc/core.c

···
 	struct tipc_net *tn = tipc_net(net);
 
 	tipc_detach_loopback(net);
+	tipc_net_stop(net);
 	/* Make sure the tipc_net_finalize_work() finished */
 	cancel_work_sync(&tn->work);
-	tipc_net_stop(net);
-
 	tipc_bcast_stop(net);
 	tipc_nametbl_stop(net);
 	tipc_sk_rht_destroy(net);

net/tls/tls_main.c

···
 {
 	struct tls_context *ctx;
 
+	WARN_ON_ONCE(sk->sk_prot == p);
+
 	ctx = tls_get_ctx(sk);
 	if (likely(ctx)) {
 		ctx->sk_write_space = write_space;

net/xdp/xsk.c

···
 			goto out;
 		}
 
-		skb = xsk_build_skb(xs, &desc);
-		if (IS_ERR(skb)) {
-			err = PTR_ERR(skb);
-			goto out;
-		}
-
 		/* This is the backpressure mechanism for the Tx path.
 		 * Reserve space in the completion queue and only proceed
 		 * if there is space in it. This avoids having to implement
···
 		spin_lock_irqsave(&xs->pool->cq_lock, flags);
 		if (xskq_prod_reserve(xs->pool->cq)) {
 			spin_unlock_irqrestore(&xs->pool->cq_lock, flags);
-			kfree_skb(skb);
 			goto out;
 		}
 		spin_unlock_irqrestore(&xs->pool->cq_lock, flags);
+
+		skb = xsk_build_skb(xs, &desc);
+		if (IS_ERR(skb)) {
+			err = PTR_ERR(skb);
+			spin_lock_irqsave(&xs->pool->cq_lock, flags);
+			xskq_prod_cancel(xs->pool->cq);
+			spin_unlock_irqrestore(&xs->pool->cq_lock, flags);
+			goto out;
+		}
 
 		err = __dev_direct_xmit(skb, xs->queue_id);
 		if  (err == NETDEV_TX_BUSY) {

samples/fprobe/fprobe_example.c

···
 #define BACKTRACE_DEPTH 16
 #define MAX_SYMBOL_LEN 4096
 struct fprobe sample_probe;
+static unsigned long nhit;
 
 static char symbol[MAX_SYMBOL_LEN] = "kernel_clone";
 module_param_string(symbol, symbol, sizeof(symbol), 0644);
···
 module_param_string(nosymbol, nosymbol, sizeof(nosymbol), 0644);
 static bool stackdump = true;
 module_param(stackdump, bool, 0644);
+static bool use_trace = false;
+module_param(use_trace, bool, 0644);
 
 static void show_backtrace(void)
 {
···
 
 static void sample_entry_handler(struct fprobe *fp, unsigned long ip, struct pt_regs *regs)
 {
-	pr_info("Enter <%pS> ip = 0x%p\n", (void *)ip, (void *)ip);
+	if (use_trace)
+		/*
+		 * This is just an example, no kernel code should call
+		 * trace_printk() except when actively debugging.
+		 */
+		trace_printk("Enter <%pS> ip = 0x%p\n", (void *)ip, (void *)ip);
+	else
+		pr_info("Enter <%pS> ip = 0x%p\n", (void *)ip, (void *)ip);
+	nhit++;
 	if (stackdump)
 		show_backtrace();
 }
···
 {
 	unsigned long rip = instruction_pointer(regs);
 
-	pr_info("Return from <%pS> ip = 0x%p to rip = 0x%p (%pS)\n",
-		(void *)ip, (void *)ip, (void *)rip, (void *)rip);
+	if (use_trace)
+		/*
+		 * This is just an example, no kernel code should call
+		 * trace_printk() except when actively debugging.
+		 */
+		trace_printk("Return from <%pS> ip = 0x%p to rip = 0x%p (%pS)\n",
+			(void *)ip, (void *)ip, (void *)rip, (void *)rip);
+	else
+		pr_info("Return from <%pS> ip = 0x%p to rip = 0x%p (%pS)\n",
+			(void *)ip, (void *)ip, (void *)rip, (void *)rip);
+	nhit++;
 	if (stackdump)
 		show_backtrace();
 }
···
 {
 	unregister_fprobe(&sample_probe);
 
-	pr_info("fprobe at %s unregistered\n", symbol);
+	pr_info("fprobe at %s unregistered. %ld times hit, %ld times missed\n",
+		symbol, nhit, sample_probe.nmissed);
 }
 
 module_init(fprobe_init)

tools/testing/selftests/bpf/prog_tests/bpf_cookie.c

···
 })
 
 	GET_ADDR("bpf_fentry_test1", addrs[0]);
-	GET_ADDR("bpf_fentry_test2", addrs[1]);
-	GET_ADDR("bpf_fentry_test3", addrs[2]);
-	GET_ADDR("bpf_fentry_test4", addrs[3]);
-	GET_ADDR("bpf_fentry_test5", addrs[4]);
-	GET_ADDR("bpf_fentry_test6", addrs[5]);
-	GET_ADDR("bpf_fentry_test7", addrs[6]);
+	GET_ADDR("bpf_fentry_test3", addrs[1]);
+	GET_ADDR("bpf_fentry_test4", addrs[2]);
+	GET_ADDR("bpf_fentry_test5", addrs[3]);
+	GET_ADDR("bpf_fentry_test6", addrs[4]);
+	GET_ADDR("bpf_fentry_test7", addrs[5]);
+	GET_ADDR("bpf_fentry_test2", addrs[6]);
 	GET_ADDR("bpf_fentry_test8", addrs[7]);
 
 #undef GET_ADDR
 
-	cookies[0] = 1;
-	cookies[1] = 2;
-	cookies[2] = 3;
-	cookies[3] = 4;
-	cookies[4] = 5;
-	cookies[5] = 6;
-	cookies[6] = 7;
-	cookies[7] = 8;
+	cookies[0] = 1; /* bpf_fentry_test1 */
+	cookies[1] = 2; /* bpf_fentry_test3 */
+	cookies[2] = 3; /* bpf_fentry_test4 */
+	cookies[3] = 4; /* bpf_fentry_test5 */
+	cookies[4] = 5; /* bpf_fentry_test6 */
+	cookies[5] = 6; /* bpf_fentry_test7 */
+	cookies[6] = 7; /* bpf_fentry_test2 */
+	cookies[7] = 8; /* bpf_fentry_test8 */
 
 	opts.kprobe_multi.addrs = (const unsigned long *) &addrs;
 	opts.kprobe_multi.cnt = ARRAY_SIZE(addrs);
···
 	if (!ASSERT_GE(link1_fd, 0, "link1_fd"))
 		goto cleanup;
 
-	cookies[0] = 8;
-	cookies[1] = 7;
-	cookies[2] = 6;
-	cookies[3] = 5;
-	cookies[4] = 4;
-	cookies[5] = 3;
-	cookies[6] = 2;
-	cookies[7] = 1;
+	cookies[0] = 8; /* bpf_fentry_test1 */
+	cookies[1] = 7; /* bpf_fentry_test3 */
+	cookies[2] = 6; /* bpf_fentry_test4 */
+	cookies[3] = 5; /* bpf_fentry_test5 */
+	cookies[4] = 4; /* bpf_fentry_test6 */
+	cookies[5] = 3; /* bpf_fentry_test7 */
+	cookies[6] = 2; /* bpf_fentry_test2 */
+	cookies[7] = 1; /* bpf_fentry_test8 */
 
 	opts.kprobe_multi.flags = BPF_F_KPROBE_MULTI_RETURN;
 	prog_fd = bpf_program__fd(skel->progs.test_kretprobe);
···
 	struct kprobe_multi *skel = NULL;
 	const char *syms[8] = {
 		"bpf_fentry_test1",
-		"bpf_fentry_test2",
 		"bpf_fentry_test3",
 		"bpf_fentry_test4",
 		"bpf_fentry_test5",
 		"bpf_fentry_test6",
 		"bpf_fentry_test7",
+		"bpf_fentry_test2",
 		"bpf_fentry_test8",
 	};
 	__u64 cookies[8];
···
 	skel->bss->pid = getpid();
 	skel->bss->test_cookie = true;
 
-	cookies[0] = 1;
-	cookies[1] = 2;
-	cookies[2] = 3;
-	cookies[3] = 4;
-	cookies[4] = 5;
-	cookies[5] = 6;
-	cookies[6] = 7;
-	cookies[7] = 8;
+	cookies[0] = 1; /* bpf_fentry_test1 */
+	cookies[1] = 2; /* bpf_fentry_test3 */
+	cookies[2] = 3; /* bpf_fentry_test4 */
+	cookies[3] = 4; /* bpf_fentry_test5 */
+	cookies[4] = 5; /* bpf_fentry_test6 */
+	cookies[5] = 6; /* bpf_fentry_test7 */
+	cookies[6] = 7; /* bpf_fentry_test2 */
+	cookies[7] = 8; /* bpf_fentry_test8 */
 
 	opts.syms = syms;
 	opts.cnt = ARRAY_SIZE(syms);
···
 	if (!ASSERT_OK_PTR(link1, "bpf_program__attach_kprobe_multi_opts"))
 		goto cleanup;
 
-	cookies[0] = 8;
-	cookies[1] = 7;
-	cookies[2] = 6;
-	cookies[3] = 5;
-	cookies[4] = 4;
-	cookies[5] = 3;
-	cookies[6] = 2;
-	cookies[7] = 1;
+	cookies[0] = 8; /* bpf_fentry_test1 */
+	cookies[1] = 7; /* bpf_fentry_test3 */
+	cookies[2] = 6; /* bpf_fentry_test4 */
+	cookies[3] = 5; /* bpf_fentry_test5 */
+	cookies[4] = 4; /* bpf_fentry_test6 */
+	cookies[5] = 3; /* bpf_fentry_test7 */
+	cookies[6] = 2; /* bpf_fentry_test2 */
+	cookies[7] = 1; /* bpf_fentry_test8 */
 
 	opts.retprobe = true;
 

tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c

···
 			continue;
 		if (!strncmp(name, "rcu_", 4))
 			continue;
+		if (!strncmp(name, "__ftrace_invalid_address__",
+			     sizeof("__ftrace_invalid_address__") - 1))
+			continue;
 		err = hashmap__add(map, name, NULL);
 		if (err) {
 			free(name);

tools/testing/selftests/bpf/prog_tests/tailcalls.c

···
 	bpf_object__close(obj);
 }
 
+#include "tailcall_bpf2bpf6.skel.h"
+
+/* Tail call counting works even when there is data on stack which is
+ * not aligned to 8 bytes.
+ */
+static void test_tailcall_bpf2bpf_6(void)
+{
+	struct tailcall_bpf2bpf6 *obj;
+	int err, map_fd, prog_fd, main_fd, data_fd, i, val;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	obj = tailcall_bpf2bpf6__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "open and load"))
+		return;
+
+	main_fd = bpf_program__fd(obj->progs.entry);
+	if (!ASSERT_GE(main_fd, 0, "entry prog fd"))
+		goto out;
+
+	map_fd = bpf_map__fd(obj->maps.jmp_table);
+	if (!ASSERT_GE(map_fd, 0, "jmp_table map fd"))
+		goto out;
+
+	prog_fd = bpf_program__fd(obj->progs.classifier_0);
+	if (!ASSERT_GE(prog_fd, 0, "classifier_0 prog fd"))
+		goto out;
+
+	i = 0;
+	err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+	if (!ASSERT_OK(err, "jmp_table map update"))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "entry prog test run");
+	ASSERT_EQ(topts.retval, 0, "tailcall retval");
+
+	data_fd = bpf_map__fd(obj->maps.bss);
+	if (!ASSERT_GE(map_fd, 0, "bss map fd"))
+		goto out;
+
+	i = 0;
+	err = bpf_map_lookup_elem(data_fd, &i, &val);
+	ASSERT_OK(err, "bss map lookup");
+	ASSERT_EQ(val, 1, "done flag is set");
+
+out:
+	tailcall_bpf2bpf6__destroy(obj);
+}
+
 void test_tailcalls(void)
 {
 	if (test__start_subtest("tailcall_1"))
···
 		test_tailcall_bpf2bpf_4(false);
 	if (test__start_subtest("tailcall_bpf2bpf_5"))
 		test_tailcall_bpf2bpf_4(true);
+	if (test__start_subtest("tailcall_bpf2bpf_6"))
+		test_tailcall_bpf2bpf_6();
 }

tools/testing/selftests/bpf/progs/kprobe_multi.c

···
 
 	if (is_return) {
 		SET(kretprobe_test1_result, &bpf_fentry_test1, 8);
-		SET(kretprobe_test2_result, &bpf_fentry_test2, 7);
-		SET(kretprobe_test3_result, &bpf_fentry_test3, 6);
-		SET(kretprobe_test4_result, &bpf_fentry_test4, 5);
-		SET(kretprobe_test5_result, &bpf_fentry_test5, 4);
-		SET(kretprobe_test6_result, &bpf_fentry_test6, 3);
-		SET(kretprobe_test7_result, &bpf_fentry_test7, 2);
+		SET(kretprobe_test2_result, &bpf_fentry_test2, 2);
+		SET(kretprobe_test3_result, &bpf_fentry_test3, 7);
+		SET(kretprobe_test4_result, &bpf_fentry_test4, 6);
+		SET(kretprobe_test5_result, &bpf_fentry_test5, 5);
+		SET(kretprobe_test6_result, &bpf_fentry_test6, 4);
+		SET(kretprobe_test7_result, &bpf_fentry_test7, 3);
 		SET(kretprobe_test8_result, &bpf_fentry_test8, 1);
 	} else {
 		SET(kprobe_test1_result, &bpf_fentry_test1, 1);
-		SET(kprobe_test2_result, &bpf_fentry_test2, 2);
-		SET(kprobe_test3_result, &bpf_fentry_test3, 3);
-		SET(kprobe_test4_result, &bpf_fentry_test4, 4);
-		SET(kprobe_test5_result, &bpf_fentry_test5, 5);
-		SET(kprobe_test6_result, &bpf_fentry_test6, 6);
-		SET(kprobe_test7_result, &bpf_fentry_test7, 7);
+		SET(kprobe_test2_result, &bpf_fentry_test2, 7);
+		SET(kprobe_test3_result, &bpf_fentry_test3, 2);
+		SET(kprobe_test4_result, &bpf_fentry_test4, 3);
+		SET(kprobe_test5_result, &bpf_fentry_test5, 4);
+		SET(kprobe_test6_result, &bpf_fentry_test6, 5);
+		SET(kprobe_test7_result, &bpf_fentry_test7, 6);
 		SET(kprobe_test8_result, &bpf_fentry_test8, 8);
 	}
 

tools/testing/selftests/bpf/progs/tailcall_bpf2bpf6.c

···
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#define __unused __attribute__((unused))
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int done = 0;
+
+SEC("tc")
+int classifier_0(struct __sk_buff *skb __unused)
+{
+	done = 1;
+	return 0;
+}
+
+static __noinline
+int subprog_tail(struct __sk_buff *skb)
+{
+	/* Don't propagate the constant to the caller */
+	volatile int ret = 1;
+
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	return ret;
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	/* Have data on stack which size is not a multiple of 8 */
+	volatile char arr[1] = {};
+
+	return subprog_tail(skb);
+}
+
+char __license[] SEC("license") = "GPL";

tools/testing/selftests/net/fcnal-test.sh

···
 NL_IP=172.17.1.1
 NL_IP6=2001:db8:4::1
 
+# multicast and broadcast addresses
+MCAST_IP=224.0.0.1
+BCAST_IP=255.255.255.255
+
 MD5_PW=abc123
 MD5_WRONG_PW=abc1234
 
···
 	case "$1" in
 	127.0.0.1) echo "loopback";;
 	::1) echo "IPv6 loopback";;
+
+	${BCAST_IP}) echo "broadcast";;
+	${MCAST_IP}) echo "multicast";;
 
 	${NSA_IP})	echo "ns-A IP";;
 	${NSA_IP6})	echo "ns-A IPv6";;
···
 	done
 
 	#
-	# raw socket with nonlocal bind
+	# tests for nonlocal bind
 	#
 	a=${NL_IP}
 	log_start
-	run_cmd nettest -s -R -P icmp -f -l ${a} -I ${NSA_DEV} -b
-	log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address after device bind"
+	run_cmd nettest -s -R -f -l ${a} -b
+	log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address"
+
+	log_start
+	run_cmd nettest -s -f -l ${a} -b
+	log_test_addr ${a} $? 0 "TCP socket bind to nonlocal address"
+
+	log_start
+	run_cmd nettest -s -D -P icmp -f -l ${a} -b
+	log_test_addr ${a} $? 0 "ICMP socket bind to nonlocal address"
+
+	#
+	# check that ICMP sockets cannot bind to broadcast and multicast addresses
+	#
+	a=${BCAST_IP}
+	log_start
+	run_cmd nettest -s -D -P icmp -l ${a} -b
+	log_test_addr ${a} $? 1 "ICMP socket bind to broadcast address"
+
+	a=${MCAST_IP}
+	log_start
+	run_cmd nettest -s -D -P icmp -l ${a} -b
+	log_test_addr ${a} $? 1 "ICMP socket bind to multicast address"
 
 	#
 	# tcp sockets
···
 	log_test_addr ${a} $? 1 "Raw socket bind to out of scope address after VRF bind"
 
 	#
-	# raw socket with nonlocal bind
+	# tests for nonlocal bind
 	#
 	a=${NL_IP}
 	log_start
-	run_cmd nettest -s -R -P icmp -f -l ${a} -I ${VRF} -b
+	run_cmd nettest -s -R -f -l ${a} -I ${VRF} -b
 	log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address after VRF bind"
+
+	log_start
+	run_cmd nettest -s -f -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 0 "TCP socket bind to nonlocal address after VRF bind"
+
+	log_start
+	run_cmd nettest -s -D -P icmp -f -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 0 "ICMP socket bind to nonlocal address after VRF bind"
+
+	#
+	# check that ICMP sockets cannot bind to broadcast and multicast addresses
+	#
+	a=${BCAST_IP}
+	log_start
+	run_cmd nettest -s -D -P icmp -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 1 "ICMP socket bind to broadcast address after VRF bind"
+
+	a=${MCAST_IP}
+	log_start
+	run_cmd nettest -s -D -P icmp -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 1 "ICMP socket bind to multicast address after VRF bind"
 
 	#
 	# tcp sockets
···
 
 	log_subsection "No VRF"
 	setup
+	set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
 	ipv4_addr_bind_novrf
 
 	log_subsection "With VRF"
 	setup "yes"
+	set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
 	ipv4_addr_bind_vrf
 }
 

tools/testing/selftests/netfilter/nft_concat_range.sh

···
 
 # List of possible paths to pktgen script from kernel tree for performance tests
 PKTGEN_SCRIPT_PATHS="
-	../../../samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
+	../../../../samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
 	pktgen/pktgen_bench_xmit_mode_netif_receive.sh"
 
 # Definition of set types: