Merge tag 'mac80211-for-net-2021-03-17' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
First round of fixes for 5.12-rc:
 * HE (802.11ax) elements can be extended, handle that
 * fix locking in network namespace changes that was
   broken due to the RTNL-redux work
 * various other small fixes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/Documentation/networking/device_drivers/ethernet/amazon/ena.rst b/Documentation/networking/device_drivers/ethernet/amazon/ena.rst
index 3561a8a..f8c6469 100644
--- a/Documentation/networking/device_drivers/ethernet/amazon/ena.rst
+++ b/Documentation/networking/device_drivers/ethernet/amazon/ena.rst
@@ -267,7 +267,7 @@
 Tx
 --
 
-end_start_xmit() is called by the stack. This function does the following:
+ena_start_xmit() is called by the stack. This function does the following:
 
 - Maps data buffers (skb->data and frags).
 - Populates ena_buf for the push buffer (if the driver and device are
diff --git a/MAINTAINERS b/MAINTAINERS
index 6acc3b8..0d80d3d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16888,8 +16888,10 @@
 
 SPIDERNET NETWORK DRIVER for CELL
 M:	Ishizaki Kou <kou.ishizaki@toshiba.co.jp>
+M:	Geoff Levand <geoff@infradead.org>
 L:	netdev@vger.kernel.org
-S:	Supported
+L:	linuxppc-dev@lists.ozlabs.org
+S:	Maintained
 F:	Documentation/networking/device_drivers/ethernet/toshiba/spider_net.rst
 F:	drivers/net/ethernet/toshiba/spider_net*
 
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index ef474ba..6958830 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -212,18 +212,6 @@ static const struct can_bittiming_const c_can_bittiming_const = {
 	.brp_inc = 1,
 };
 
-static inline void c_can_pm_runtime_enable(const struct c_can_priv *priv)
-{
-	if (priv->device)
-		pm_runtime_enable(priv->device);
-}
-
-static inline void c_can_pm_runtime_disable(const struct c_can_priv *priv)
-{
-	if (priv->device)
-		pm_runtime_disable(priv->device);
-}
-
 static inline void c_can_pm_runtime_get_sync(const struct c_can_priv *priv)
 {
 	if (priv->device)
@@ -1335,7 +1323,6 @@ static const struct net_device_ops c_can_netdev_ops = {
 
 int register_c_can_dev(struct net_device *dev)
 {
-	struct c_can_priv *priv = netdev_priv(dev);
 	int err;
 
 	/* Deactivate pins to prevent DRA7 DCAN IP from being
@@ -1345,28 +1332,19 @@ int register_c_can_dev(struct net_device *dev)
 	 */
 	pinctrl_pm_select_sleep_state(dev->dev.parent);
 
-	c_can_pm_runtime_enable(priv);
-
 	dev->flags |= IFF_ECHO;	/* we support local echo */
 	dev->netdev_ops = &c_can_netdev_ops;
 
 	err = register_candev(dev);
-	if (err)
-		c_can_pm_runtime_disable(priv);
-	else
+	if (!err)
 		devm_can_led_init(dev);
-
 	return err;
 }
 EXPORT_SYMBOL_GPL(register_c_can_dev);
 
 void unregister_c_can_dev(struct net_device *dev)
 {
-	struct c_can_priv *priv = netdev_priv(dev);
-
 	unregister_candev(dev);
-
-	c_can_pm_runtime_disable(priv);
 }
 EXPORT_SYMBOL_GPL(unregister_c_can_dev);
 
diff --git a/drivers/net/can/c_can/c_can_pci.c b/drivers/net/can/c_can/c_can_pci.c
index 406b484..7efb60b 100644
--- a/drivers/net/can/c_can/c_can_pci.c
+++ b/drivers/net/can/c_can/c_can_pci.c
@@ -239,12 +239,13 @@ static void c_can_pci_remove(struct pci_dev *pdev)
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 	struct c_can_priv *priv = netdev_priv(dev);
+	void __iomem *addr = priv->base;
 
 	unregister_c_can_dev(dev);
 
 	free_c_can_dev(dev);
 
-	pci_iounmap(pdev, priv->base);
+	pci_iounmap(pdev, addr);
 	pci_disable_msi(pdev);
 	pci_clear_master(pdev);
 	pci_release_regions(pdev);
diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 05f425c..47b251b 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -29,6 +29,7 @@
 #include <linux/list.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/clk.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -386,6 +387,7 @@ static int c_can_plat_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
+	pm_runtime_enable(priv->device);
 	ret = register_c_can_dev(dev);
 	if (ret) {
 		dev_err(&pdev->dev, "registering %s failed (err=%d)\n",
@@ -398,6 +400,7 @@ static int c_can_plat_probe(struct platform_device *pdev)
 	return 0;
 
 exit_free_device:
+	pm_runtime_disable(priv->device);
 	free_c_can_dev(dev);
 exit:
 	dev_err(&pdev->dev, "probe failed\n");
@@ -408,9 +411,10 @@ static int c_can_plat_probe(struct platform_device *pdev)
 static int c_can_plat_remove(struct platform_device *pdev)
 {
 	struct net_device *dev = platform_get_drvdata(pdev);
+	struct c_can_priv *priv = netdev_priv(dev);
 
 	unregister_c_can_dev(dev);
-
+	pm_runtime_disable(priv->device);
 	free_c_can_dev(dev);
 
 	return 0;
diff --git a/drivers/net/can/dev/netlink.c b/drivers/net/can/dev/netlink.c
index 867f6be..f5d79e6 100644
--- a/drivers/net/can/dev/netlink.c
+++ b/drivers/net/can/dev/netlink.c
@@ -355,6 +355,7 @@ static void can_dellink(struct net_device *dev, struct list_head *head)
 
 struct rtnl_link_ops can_link_ops __read_mostly = {
 	.kind		= "can",
+	.netns_refund	= true,
 	.maxtype	= IFLA_CAN_MAX,
 	.policy		= can_policy,
 	.setup		= can_setup,
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 134c057..57f3635 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -697,9 +697,15 @@ static int flexcan_chip_disable(struct flexcan_priv *priv)
 static int flexcan_chip_freeze(struct flexcan_priv *priv)
 {
 	struct flexcan_regs __iomem *regs = priv->regs;
-	unsigned int timeout = 1000 * 1000 * 10 / priv->can.bittiming.bitrate;
+	unsigned int timeout;
+	u32 bitrate = priv->can.bittiming.bitrate;
 	u32 reg;
 
+	if (bitrate)
+		timeout = 1000 * 1000 * 10 / bitrate;
+	else
+		timeout = FLEXCAN_TIMEOUT_US / 10;
+
 	reg = priv->read(&regs->mcr);
 	reg |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_HALT;
 	priv->write(reg, &regs->mcr);
diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c
index 37e0501..74d9899 100644
--- a/drivers/net/can/kvaser_pciefd.c
+++ b/drivers/net/can/kvaser_pciefd.c
@@ -57,6 +57,7 @@ MODULE_DESCRIPTION("CAN driver for Kvaser CAN/PCIe devices");
 #define KVASER_PCIEFD_KCAN_STAT_REG 0x418
 #define KVASER_PCIEFD_KCAN_MODE_REG 0x41c
 #define KVASER_PCIEFD_KCAN_BTRN_REG 0x420
+#define KVASER_PCIEFD_KCAN_BUS_LOAD_REG 0x424
 #define KVASER_PCIEFD_KCAN_BTRD_REG 0x428
 #define KVASER_PCIEFD_KCAN_PWM_REG 0x430
 /* Loopback control register */
@@ -949,6 +950,9 @@ static int kvaser_pciefd_setup_can_ctrls(struct kvaser_pciefd *pcie)
 		timer_setup(&can->bec_poll_timer, kvaser_pciefd_bec_poll_timer,
 			    0);
 
+		/* Disable Bus load reporting */
+		iowrite32(0, can->reg_base + KVASER_PCIEFD_KCAN_BUS_LOAD_REG);
+
 		tx_npackets = ioread32(can->reg_base +
 				       KVASER_PCIEFD_KCAN_TX_NPACKETS_REG);
 		if (((tx_npackets >> KVASER_PCIEFD_KCAN_TX_NPACKETS_MAX_SHIFT) &
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 3752520..0c8d36b 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -501,9 +501,6 @@ static int m_can_do_rx_poll(struct net_device *dev, int quota)
 	}
 
 	while ((rxfs & RXFS_FFL_MASK) && (quota > 0)) {
-		if (rxfs & RXFS_RFL)
-			netdev_warn(dev, "Rx FIFO 0 Message Lost\n");
-
 		m_can_read_fifo(dev, rxfs);
 
 		quota--;
@@ -876,7 +873,7 @@ static int m_can_rx_peripheral(struct net_device *dev)
 {
 	struct m_can_classdev *cdev = netdev_priv(dev);
 
-	m_can_rx_handler(dev, 1);
+	m_can_rx_handler(dev, M_CAN_NAPI_WEIGHT);
 
 	m_can_enable_all_interrupts(cdev);
 
diff --git a/drivers/net/can/usb/Kconfig b/drivers/net/can/usb/Kconfig
index c1e5d5b..538f4d9 100644
--- a/drivers/net/can/usb/Kconfig
+++ b/drivers/net/can/usb/Kconfig
@@ -73,6 +73,7 @@
 	    - Kvaser Memorator Pro 5xHS
 	    - Kvaser USBcan Light 4xHS
 	    - Kvaser USBcan Pro 2xHS v2
+	    - Kvaser USBcan Pro 4xHS
 	    - Kvaser USBcan Pro 5xHS
 	    - Kvaser U100
 	    - Kvaser U100P
diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
index 2b7efd2..4e97da8 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
@@ -86,8 +86,9 @@
 #define USB_U100_PRODUCT_ID			273
 #define USB_U100P_PRODUCT_ID			274
 #define USB_U100S_PRODUCT_ID			275
+#define USB_USBCAN_PRO_4HS_PRODUCT_ID		276
 #define USB_HYDRA_PRODUCT_ID_END \
-	USB_U100S_PRODUCT_ID
+	USB_USBCAN_PRO_4HS_PRODUCT_ID
 
 static inline bool kvaser_is_leaf(const struct usb_device_id *id)
 {
@@ -193,6 +194,7 @@ static const struct usb_device_id kvaser_usb_table[] = {
 	{ USB_DEVICE(KVASER_VENDOR_ID, USB_U100_PRODUCT_ID) },
 	{ USB_DEVICE(KVASER_VENDOR_ID, USB_U100P_PRODUCT_ID) },
 	{ USB_DEVICE(KVASER_VENDOR_ID, USB_U100S_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_USBCAN_PRO_4HS_PRODUCT_ID) },
 	{ }
 };
 MODULE_DEVICE_TABLE(usb, kvaser_usb_table);
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
index f347ecc..f1d0182 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -18,6 +18,8 @@
 
 MODULE_SUPPORTED_DEVICE("PEAK-System PCAN-USB FD adapter");
 MODULE_SUPPORTED_DEVICE("PEAK-System PCAN-USB Pro FD adapter");
+MODULE_SUPPORTED_DEVICE("PEAK-System PCAN-Chip USB");
+MODULE_SUPPORTED_DEVICE("PEAK-System PCAN-USB X6 adapter");
 
 #define PCAN_USBPROFD_CHANNEL_COUNT	2
 #define PCAN_USBFD_CHANNEL_COUNT	1
diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index f8a168b..cb88ffb 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -54,7 +54,7 @@
 config BCM4908_ENET
 	tristate "Broadcom BCM4908 internal mac support"
 	depends on ARCH_BCM4908 || COMPILE_TEST
-	default y
+	default y if ARCH_BCM4908
 	help
 	  This driver supports Ethernet controller integrated into Broadcom
 	  BCM4908 family SoCs.
diff --git a/drivers/net/ethernet/netronome/nfp/flower/metadata.c b/drivers/net/ethernet/netronome/nfp/flower/metadata.c
index 5defd31..aa06fcb 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/metadata.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/metadata.c
@@ -327,8 +327,14 @@ int nfp_compile_flow_metadata(struct nfp_app *app,
 		goto err_free_ctx_entry;
 	}
 
+	/* Do net allocate a mask-id for pre_tun_rules. These flows are used to
+	 * configure the pre_tun table and are never actually send to the
+	 * firmware as an add-flow message. This causes the mask-id allocation
+	 * on the firmware to get out of sync if allocated here.
+	 */
 	new_mask_id = 0;
-	if (!nfp_check_mask_add(app, nfp_flow->mask_data,
+	if (!nfp_flow->pre_tun_rule.dev &&
+	    !nfp_check_mask_add(app, nfp_flow->mask_data,
 				nfp_flow->meta.mask_len,
 				&nfp_flow->meta.flags, &new_mask_id)) {
 		NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot allocate a new mask id");
@@ -359,7 +365,8 @@ int nfp_compile_flow_metadata(struct nfp_app *app,
 			goto err_remove_mask;
 		}
 
-		if (!nfp_check_mask_remove(app, nfp_flow->mask_data,
+		if (!nfp_flow->pre_tun_rule.dev &&
+		    !nfp_check_mask_remove(app, nfp_flow->mask_data,
 					   nfp_flow->meta.mask_len,
 					   NULL, &new_mask_id)) {
 			NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot release mask id");
@@ -374,8 +381,10 @@ int nfp_compile_flow_metadata(struct nfp_app *app,
 	return 0;
 
 err_remove_mask:
-	nfp_check_mask_remove(app, nfp_flow->mask_data, nfp_flow->meta.mask_len,
-			      NULL, &new_mask_id);
+	if (!nfp_flow->pre_tun_rule.dev)
+		nfp_check_mask_remove(app, nfp_flow->mask_data,
+				      nfp_flow->meta.mask_len,
+				      NULL, &new_mask_id);
 err_remove_rhash:
 	WARN_ON_ONCE(rhashtable_remove_fast(&priv->stats_ctx_table,
 					    &ctx_entry->ht_node,
@@ -406,9 +415,10 @@ int nfp_modify_flow_metadata(struct nfp_app *app,
 
 	__nfp_modify_flow_metadata(priv, nfp_flow);
 
-	nfp_check_mask_remove(app, nfp_flow->mask_data,
-			      nfp_flow->meta.mask_len, &nfp_flow->meta.flags,
-			      &new_mask_id);
+	if (!nfp_flow->pre_tun_rule.dev)
+		nfp_check_mask_remove(app, nfp_flow->mask_data,
+				      nfp_flow->meta.mask_len, &nfp_flow->meta.flags,
+				      &new_mask_id);
 
 	/* Update flow payload with mask ids. */
 	nfp_flow->unmasked_data[NFP_FL_MASK_ID_LOCATION] = new_mask_id;
diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c
index 1c59aff..d72225d 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c
@@ -1142,6 +1142,12 @@ nfp_flower_validate_pre_tun_rule(struct nfp_app *app,
 		return -EOPNOTSUPP;
 	}
 
+	if (!(key_layer & NFP_FLOWER_LAYER_IPV4) &&
+	    !(key_layer & NFP_FLOWER_LAYER_IPV6)) {
+		NL_SET_ERR_MSG_MOD(extack, "unsupported pre-tunnel rule: match on ipv4/ipv6 eth_type must be present");
+		return -EOPNOTSUPP;
+	}
+
 	/* Skip fields known to exist. */
 	mask += sizeof(struct nfp_flower_meta_tci);
 	ext += sizeof(struct nfp_flower_meta_tci);
@@ -1152,6 +1158,13 @@ nfp_flower_validate_pre_tun_rule(struct nfp_app *app,
 	mask += sizeof(struct nfp_flower_in_port);
 	ext += sizeof(struct nfp_flower_in_port);
 
+	/* Ensure destination MAC address matches pre_tun_dev. */
+	mac = (struct nfp_flower_mac_mpls *)ext;
+	if (memcmp(&mac->mac_dst[0], flow->pre_tun_rule.dev->dev_addr, 6)) {
+		NL_SET_ERR_MSG_MOD(extack, "unsupported pre-tunnel rule: dest MAC must match output dev MAC");
+		return -EOPNOTSUPP;
+	}
+
 	/* Ensure destination MAC address is fully matched. */
 	mac = (struct nfp_flower_mac_mpls *)mask;
 	if (!is_broadcast_ether_addr(&mac->mac_dst[0])) {
@@ -1159,6 +1172,11 @@ nfp_flower_validate_pre_tun_rule(struct nfp_app *app,
 		return -EOPNOTSUPP;
 	}
 
+	if (mac->mpls_lse) {
+		NL_SET_ERR_MSG_MOD(extack, "unsupported pre-tunnel rule: MPLS not supported");
+		return -EOPNOTSUPP;
+	}
+
 	mask += sizeof(struct nfp_flower_mac_mpls);
 	ext += sizeof(struct nfp_flower_mac_mpls);
 	if (key_layer & NFP_FLOWER_LAYER_IPV4 ||
diff --git a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
index 7248d24..d19c02e 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
@@ -16,8 +16,9 @@
 #define NFP_FL_MAX_ROUTES               32
 
 #define NFP_TUN_PRE_TUN_RULE_LIMIT	32
-#define NFP_TUN_PRE_TUN_RULE_DEL	0x1
-#define NFP_TUN_PRE_TUN_IDX_BIT		0x8
+#define NFP_TUN_PRE_TUN_RULE_DEL	BIT(0)
+#define NFP_TUN_PRE_TUN_IDX_BIT		BIT(3)
+#define NFP_TUN_PRE_TUN_IPV6_BIT	BIT(7)
 
 /**
  * struct nfp_tun_pre_run_rule - rule matched before decap
@@ -1268,6 +1269,7 @@ int nfp_flower_xmit_pre_tun_flow(struct nfp_app *app,
 {
 	struct nfp_flower_priv *app_priv = app->priv;
 	struct nfp_tun_offloaded_mac *mac_entry;
+	struct nfp_flower_meta_tci *key_meta;
 	struct nfp_tun_pre_tun_rule payload;
 	struct net_device *internal_dev;
 	int err;
@@ -1290,6 +1292,15 @@ int nfp_flower_xmit_pre_tun_flow(struct nfp_app *app,
 	if (!mac_entry)
 		return -ENOENT;
 
+	/* Set/clear IPV6 bit. cpu_to_be16() swap will lead to MSB being
+	 * set/clear for port_idx.
+	 */
+	key_meta = (struct nfp_flower_meta_tci *)flow->unmasked_data;
+	if (key_meta->nfp_flow_key_layer & NFP_FLOWER_LAYER_IPV6)
+		mac_entry->index |= NFP_TUN_PRE_TUN_IPV6_BIT;
+	else
+		mac_entry->index &= ~NFP_TUN_PRE_TUN_IPV6_BIT;
+
 	payload.port_idx = cpu_to_be16(mac_entry->index);
 
 	/* Copy mac id and vlan to flow - dev may not exist at delete time. */
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index 162a1ff..4087311 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -1079,15 +1079,17 @@ static int ionic_tx_descs_needed(struct ionic_queue *q, struct sk_buff *skb)
 {
 	int sg_elems = q->lif->qtype_info[IONIC_QTYPE_TXQ].max_sg_elems;
 	struct ionic_tx_stats *stats = q_to_tx_stats(q);
+	int ndescs;
 	int err;
 
-	/* If TSO, need roundup(skb->len/mss) descs */
+	/* Each desc is mss long max, so a descriptor for each gso_seg */
 	if (skb_is_gso(skb))
-		return (skb->len / skb_shinfo(skb)->gso_size) + 1;
+		ndescs = skb_shinfo(skb)->gso_segs;
+	else
+		ndescs = 1;
 
-	/* If non-TSO, just need 1 desc and nr_frags sg elems */
 	if (skb_shinfo(skb)->nr_frags <= sg_elems)
-		return 1;
+		return ndescs;
 
 	/* Too many frags, so linearize */
 	err = skb_linearize(skb);
@@ -1096,8 +1098,7 @@ static int ionic_tx_descs_needed(struct ionic_queue *q, struct sk_buff *skb)
 
 	stats->linearize++;
 
-	/* Need 1 desc and zero sg elems */
-	return 1;
+	return ndescs;
 }
 
 static int ionic_maybe_stop_tx(struct ionic_queue *q, int ndescs)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 6d0a33d..f2c9ee7 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -285,6 +285,7 @@ struct nf_bridge_info {
 struct tc_skb_ext {
 	__u32 chain;
 	__u16 mru;
+	bool post_ct;
 };
 #endif
 
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index e2091bb..4da61c9 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -33,6 +33,7 @@ static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
  *
  *	@list: Used internally
  *	@kind: Identifier
+ *	@netns_refund: Physical device, move to init_net on netns exit
  *	@maxtype: Highest device specific netlink attribute number
  *	@policy: Netlink policy for device specific attribute validation
  *	@validate: Optional validation function for netlink/changelink parameters
@@ -64,6 +65,7 @@ struct rtnl_link_ops {
 	size_t			priv_size;
 	void			(*setup)(struct net_device *dev);
 
+	bool			netns_refund;
 	unsigned int		maxtype;
 	const struct nla_policy	*policy;
 	int			(*validate)(struct nlattr *tb[],
diff --git a/net/can/isotp.c b/net/can/isotp.c
index 3ef7f78..4309764 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -215,8 +215,7 @@ static int isotp_send_fc(struct sock *sk, int ae, u8 flowstatus)
 	if (ae)
 		ncf->data[0] = so->opt.ext_address;
 
-	if (so->ll.mtu == CANFD_MTU)
-		ncf->flags = so->ll.tx_flags;
+	ncf->flags = so->ll.tx_flags;
 
 	can_send_ret = can_send(nskb, 1);
 	if (can_send_ret)
@@ -790,8 +789,7 @@ static enum hrtimer_restart isotp_tx_timer_handler(struct hrtimer *hrtimer)
 		so->tx.sn %= 16;
 		so->tx.bs++;
 
-		if (so->ll.mtu == CANFD_MTU)
-			cf->flags = so->ll.tx_flags;
+		cf->flags = so->ll.tx_flags;
 
 		skb->dev = dev;
 		can_skb_set_owner(skb, sk);
@@ -939,8 +937,7 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 	}
 
 	/* send the first or only CAN frame */
-	if (so->ll.mtu == CANFD_MTU)
-		cf->flags = so->ll.tx_flags;
+	cf->flags = so->ll.tx_flags;
 
 	skb->dev = dev;
 	skb->sk = sk;
@@ -1228,7 +1225,8 @@ static int isotp_setsockopt(struct socket *sock, int level, int optname,
 			if (ll.mtu != CAN_MTU && ll.mtu != CANFD_MTU)
 				return -EINVAL;
 
-			if (ll.mtu == CAN_MTU && ll.tx_dl > CAN_MAX_DLEN)
+			if (ll.mtu == CAN_MTU &&
+			    (ll.tx_dl > CAN_MAX_DLEN || ll.tx_flags != 0))
 				return -EINVAL;
 
 			memcpy(&so->ll, &ll, sizeof(ll));
diff --git a/net/core/dev.c b/net/core/dev.c
index 6c5967e..a142a20 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -11346,7 +11346,7 @@ static void __net_exit default_device_exit(struct net *net)
 			continue;
 
 		/* Leave virtual devices for the generic cleanup */
-		if (dev->rtnl_link_ops)
+		if (dev->rtnl_link_ops && !dev->rtnl_link_ops->netns_refund)
 			continue;
 
 		/* Push remaining network devices to init_net */
diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 5eddfe7..71cec03 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -271,9 +271,11 @@ static void ovs_ct_update_key(const struct sk_buff *skb,
 /* This is called to initialize CT key fields possibly coming in from the local
  * stack.
  */
-void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key)
+void ovs_ct_fill_key(const struct sk_buff *skb,
+		     struct sw_flow_key *key,
+		     bool post_ct)
 {
-	ovs_ct_update_key(skb, NULL, key, false, false);
+	ovs_ct_update_key(skb, NULL, key, post_ct, false);
 }
 
 int ovs_ct_put_key(const struct sw_flow_key *swkey,
@@ -1332,7 +1334,7 @@ int ovs_ct_clear(struct sk_buff *skb, struct sw_flow_key *key)
 	if (skb_nfct(skb)) {
 		nf_conntrack_put(skb_nfct(skb));
 		nf_ct_set(skb, NULL, IP_CT_UNTRACKED);
-		ovs_ct_fill_key(skb, key);
+		ovs_ct_fill_key(skb, key, false);
 	}
 
 	return 0;
diff --git a/net/openvswitch/conntrack.h b/net/openvswitch/conntrack.h
index 59dc327..317e525 100644
--- a/net/openvswitch/conntrack.h
+++ b/net/openvswitch/conntrack.h
@@ -25,7 +25,8 @@ int ovs_ct_execute(struct net *, struct sk_buff *, struct sw_flow_key *,
 		   const struct ovs_conntrack_info *);
 int ovs_ct_clear(struct sk_buff *skb, struct sw_flow_key *key);
 
-void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key);
+void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key,
+		     bool post_ct);
 int ovs_ct_put_key(const struct sw_flow_key *swkey,
 		   const struct sw_flow_key *output, struct sk_buff *skb);
 void ovs_ct_free_action(const struct nlattr *a);
@@ -74,7 +75,8 @@ static inline int ovs_ct_clear(struct sk_buff *skb,
 }
 
 static inline void ovs_ct_fill_key(const struct sk_buff *skb,
-				   struct sw_flow_key *key)
+				   struct sw_flow_key *key,
+				   bool post_ct)
 {
 	key->ct_state = 0;
 	key->ct_zone = 0;
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index c7f34d6..e586424 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -857,6 +857,7 @@ int ovs_flow_key_extract(const struct ip_tunnel_info *tun_info,
 #if IS_ENABLED(CONFIG_NET_TC_SKB_EXT)
 	struct tc_skb_ext *tc_ext;
 #endif
+	bool post_ct = false;
 	int res, err;
 
 	/* Extract metadata from packet. */
@@ -895,6 +896,7 @@ int ovs_flow_key_extract(const struct ip_tunnel_info *tun_info,
 		tc_ext = skb_ext_find(skb, TC_SKB_EXT);
 		key->recirc_id = tc_ext ? tc_ext->chain : 0;
 		OVS_CB(skb)->mru = tc_ext ? tc_ext->mru : 0;
+		post_ct = tc_ext ? tc_ext->post_ct : false;
 	} else {
 		key->recirc_id = 0;
 	}
@@ -904,7 +906,7 @@ int ovs_flow_key_extract(const struct ip_tunnel_info *tun_info,
 
 	err = key_extract(skb, key);
 	if (!err)
-		ovs_ct_fill_key(skb, key);   /* Must be after key_extract(). */
+		ovs_ct_fill_key(skb, key, post_ct);   /* Must be after key_extract(). */
 	return err;
 }
 
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index e37556cc..13341e7 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -1629,6 +1629,7 @@ int tcf_classify_ingress(struct sk_buff *skb,
 			return TC_ACT_SHOT;
 		ext->chain = last_executed_chain;
 		ext->mru = qdisc_skb_cb(skb)->mru;
+		ext->post_ct = qdisc_skb_cb(skb)->post_ct;
 	}
 
 	return ret;
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index d097b5c..c69a4ba 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -1451,7 +1451,7 @@ static int fl_set_key_ct(struct nlattr **tb,
 			       &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
 			       sizeof(key->ct_state));
 
-		err = fl_validate_ct_state(mask->ct_state,
+		err = fl_validate_ct_state(key->ct_state & mask->ct_state,
 					   tb[TCA_FLOWER_KEY_CT_STATE_MASK],
 					   extack);
 		if (err)
diff --git a/tools/testing/selftests/net/reuseaddr_ports_exhausted.c b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
index 7b01b7c..066efd3 100644
--- a/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
+++ b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
@@ -30,25 +30,25 @@ struct reuse_opts {
 };
 
 struct reuse_opts unreusable_opts[12] = {
-	{0, 0, 0, 0},
-	{0, 0, 0, 1},
-	{0, 0, 1, 0},
-	{0, 0, 1, 1},
-	{0, 1, 0, 0},
-	{0, 1, 0, 1},
-	{0, 1, 1, 0},
-	{0, 1, 1, 1},
-	{1, 0, 0, 0},
-	{1, 0, 0, 1},
-	{1, 0, 1, 0},
-	{1, 0, 1, 1},
+	{{0, 0}, {0, 0}},
+	{{0, 0}, {0, 1}},
+	{{0, 0}, {1, 0}},
+	{{0, 0}, {1, 1}},
+	{{0, 1}, {0, 0}},
+	{{0, 1}, {0, 1}},
+	{{0, 1}, {1, 0}},
+	{{0, 1}, {1, 1}},
+	{{1, 0}, {0, 0}},
+	{{1, 0}, {0, 1}},
+	{{1, 0}, {1, 0}},
+	{{1, 0}, {1, 1}},
 };
 
 struct reuse_opts reusable_opts[4] = {
-	{1, 1, 0, 0},
-	{1, 1, 0, 1},
-	{1, 1, 1, 0},
-	{1, 1, 1, 1},
+	{{1, 1}, {0, 0}},
+	{{1, 1}, {0, 1}},
+	{{1, 1}, {1, 0}},
+	{{1, 1}, {1, 1}},
 };
 
 int bind_port(struct __test_metadata *_metadata, int reuseaddr, int reuseport)