Including fixes from can and netfilter.

Current release - regressions:
 
   - rtnetlink: try the outer netns attribute in rtnl_get_peer_net().
 
   - rust: net::phy fix module autoloading
 
 Current release - new code bugs:
 
   - phy: avoid undefined behavior in *_led_polarity_set()
 
   - eth: octeontx2-pf: fix netdev memory leak in rvu_rep_create()
 
 Previous releases - regressions:
 
   - smc: check sndbuf_space again after NOSPACE flag is set in smc_poll
 
   - ipvs: fix clamp() of ip_vs_conn_tab on small memory systems
 
   - dsa: restore dsa_software_vlan_untag() ability to operate on VLAN-untagged traffic
 
   - eth: tun: fix tun_napi_alloc_frags()
 
   - eth: ionic: no double destroy workqueue
 
   - eth: idpf: trigger SW interrupt when exiting wb_on_itr mode
 
   - eth: rswitch: rework ts tags management
 
   - eth: team: fix feature exposure when no ports are present
 
 Previous releases - always broken:
 
   - core: fix repeated netlink messages in queue dump
 
   - mdiobus: fix an OF node reference leak
 
   - smc: check iparea_offset and ipv6_prefixes_cnt when receiving proposal msg
 
   - can: fix missed interrupts with m_can_pci
 
   - eth: oa_tc6: fix infinite loop error when tx credits becomes 0
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

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

  Current release - regressions:

   - rtnetlink: try the outer netns attribute in rtnl_get_peer_net()

   - rust: net::phy fix module autoloading

  Current release - new code bugs:

   - phy: avoid undefined behavior in *_led_polarity_set()

   - eth: octeontx2-pf: fix netdev memory leak in rvu_rep_create()

  Previous releases - regressions:

   - smc: check sndbuf_space again after NOSPACE flag is set in smc_poll

   - ipvs: fix clamp() of ip_vs_conn_tab on small memory systems

   - dsa: restore dsa_software_vlan_untag() ability to operate on
     VLAN-untagged traffic

   - eth:
       - tun: fix tun_napi_alloc_frags()
       - ionic: no double destroy workqueue
       - idpf: trigger SW interrupt when exiting wb_on_itr mode
       - rswitch: rework ts tags management
       - team: fix feature exposure when no ports are present

  Previous releases - always broken:

   - core: fix repeated netlink messages in queue dump

   - mdiobus: fix an OF node reference leak

   - smc: check iparea_offset and ipv6_prefixes_cnt when receiving
     proposal msg

   - can: fix missed interrupts with m_can_pci

   - eth: oa_tc6: fix infinite loop error when tx credits becomes 0"

* tag 'net-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (45 commits)
  net: mctp: handle skb cleanup on sock_queue failures
  net: mdiobus: fix an OF node reference leak
  octeontx2-pf: fix error handling of devlink port in rvu_rep_create()
  octeontx2-pf: fix netdev memory leak in rvu_rep_create()
  psample: adjust size if rate_as_probability is set
  netdev-genl: avoid empty messages in queue dump
  net: dsa: restore dsa_software_vlan_untag() ability to operate on VLAN-untagged traffic
  selftests: openvswitch: fix tcpdump execution
  net: usb: qmi_wwan: add Quectel RG255C
  net: phy: avoid undefined behavior in *_led_polarity_set()
  netfilter: ipset: Fix for recursive locking warning
  ipvs: Fix clamp() of ip_vs_conn_tab on small memory systems
  can: m_can: fix missed interrupts with m_can_pci
  can: m_can: set init flag earlier in probe
  rtnetlink: Try the outer netns attribute in rtnl_get_peer_net().
  net: netdevsim: fix nsim_pp_hold_write()
  idpf: trigger SW interrupt when exiting wb_on_itr mode
  idpf: add support for SW triggered interrupts
  qed: fix possible uninit pointer read in qed_mcp_nvm_info_populate()
  net: ethernet: bgmac-platform: fix an OF node reference leak
  ...

drivers/net/can/m_can/m_can.c

@@ -1220,20 +1220,32 @@ static void m_can_coalescing_update(struct m_can_classdev *cdev, u32 ir)
 static int m_can_interrupt_handler(struct m_can_classdev *cdev)
 {
 	struct net_device *dev = cdev->net;
-	u32 ir;
+	u32 ir = 0, ir_read;
 	int ret;
 
 	if (pm_runtime_suspended(cdev->dev))
 		return IRQ_NONE;
 
-	ir = m_can_read(cdev, M_CAN_IR);
+	/* The m_can controller signals its interrupt status as a level, but
+	 * depending in the integration the CPU may interpret the signal as
+	 * edge-triggered (for example with m_can_pci). For these
+	 * edge-triggered integrations, we must observe that IR is 0 at least
+	 * once to be sure that the next interrupt will generate an edge.
+	 */
+	while ((ir_read = m_can_read(cdev, M_CAN_IR)) != 0) {
+		ir |= ir_read;
+
+		/* ACK all irqs */
+		m_can_write(cdev, M_CAN_IR, ir);
+
+		if (!cdev->irq_edge_triggered)
+			break;
+	}
+
 	m_can_coalescing_update(cdev, ir);
 	if (!ir)
 		return IRQ_NONE;
 
-	/* ACK all irqs */
-	m_can_write(cdev, M_CAN_IR, ir);
-
 	if (cdev->ops->clear_interrupts)
 		cdev->ops->clear_interrupts(cdev);
 
@@ -1695,6 +1707,14 @@ static int m_can_dev_setup(struct m_can_classdev *cdev)
 		return -EINVAL;
 	}
 
+	/* Write the INIT bit, in case no hardware reset has happened before
+	 * the probe (for example, it was observed that the Intel Elkhart Lake
+	 * SoCs do not properly reset the CAN controllers on reboot)
+	 */
+	err = m_can_cccr_update_bits(cdev, CCCR_INIT, CCCR_INIT);
+	if (err)
+		return err;
+
 	if (!cdev->is_peripheral)
 		netif_napi_add(dev, &cdev->napi, m_can_poll);
 
@@ -1746,11 +1766,7 @@ static int m_can_dev_setup(struct m_can_classdev *cdev)
 		return -EINVAL;
 	}
 
-	/* Forcing standby mode should be redundant, as the chip should be in
+	return 0;
-	 * standby after a reset. Write the INIT bit anyways, should the chip
-	 * be configured by previous stage.
-	 */
-	return m_can_cccr_update_bits(cdev, CCCR_INIT, CCCR_INIT);
 }
 
 static void m_can_stop(struct net_device *dev)

drivers/net/can/m_can/m_can.h

@@ -99,6 +99,7 @@ struct m_can_classdev {
 	int pm_clock_support;
 	int pm_wake_source;
 	int is_peripheral;
+	bool irq_edge_triggered;
 
 	// Cached M_CAN_IE register content
 	u32 active_interrupts;

drivers/net/can/m_can/m_can_pci.c

@@ -127,6 +127,7 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
 	mcan_class->pm_clock_support = 1;
 	mcan_class->pm_wake_source = 0;
 	mcan_class->can.clock.freq = id->driver_data;
+	mcan_class->irq_edge_triggered = true;
 	mcan_class->ops = &m_can_pci_ops;
 
 	pci_set_drvdata(pci, mcan_class);

drivers/net/ethernet/broadcom/bgmac-platform.c

@@ -171,6 +171,7 @@ static int platform_phy_connect(struct bgmac *bgmac)
 static int bgmac_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
+	struct device_node *phy_node;
 	struct bgmac *bgmac;
 	struct resource *regs;
 	int ret;
@@ -236,7 +237,9 @@ static int bgmac_probe(struct platform_device *pdev)
 	bgmac->cco_ctl_maskset = platform_bgmac_cco_ctl_maskset;
 	bgmac->get_bus_clock = platform_bgmac_get_bus_clock;
 	bgmac->cmn_maskset32 = platform_bgmac_cmn_maskset32;
-	if (of_parse_phandle(np, "phy-handle", 0)) {
+	phy_node = of_parse_phandle(np, "phy-handle", 0);
+	if (phy_node) {
+		of_node_put(phy_node);
 		bgmac->phy_connect = platform_phy_connect;
 	} else {
 		bgmac->phy_connect = bgmac_phy_connect_direct;

drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c

@@ -346,8 +346,9 @@ static struct sk_buff *copy_gl_to_skb_pkt(const struct pkt_gl *gl,
 	 * driver. Once driver synthesizes cpl_pass_accept_req the skb will go
 	 * through the regular cpl_pass_accept_req processing in TOM.
 	 */
-	skb = alloc_skb(gl->tot_len + sizeof(struct cpl_pass_accept_req)
+	skb = alloc_skb(size_add(gl->tot_len,
-			- pktshift, GFP_ATOMIC);
+				 sizeof(struct cpl_pass_accept_req)) -
+			pktshift, GFP_ATOMIC);
 	if (unlikely(!skb))
 		return NULL;
 	__skb_put(skb, gl->tot_len + sizeof(struct cpl_pass_accept_req)

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

@@ -172,6 +172,7 @@ static int create_txqs(struct hinic_dev *nic_dev)
 	hinic_sq_dbgfs_uninit(nic_dev);
 
 	devm_kfree(&netdev->dev, nic_dev->txqs);
+	nic_dev->txqs = NULL;
 	return err;
 }
 
@@ -268,6 +269,7 @@ static int create_rxqs(struct hinic_dev *nic_dev)
 	hinic_rq_dbgfs_uninit(nic_dev);
 
 	devm_kfree(&netdev->dev, nic_dev->rxqs);
+	nic_dev->rxqs = NULL;
 	return err;
 }
 

drivers/net/ethernet/intel/idpf/idpf_dev.c

@@ -101,6 +101,9 @@ static int idpf_intr_reg_init(struct idpf_vport *vport)
 		intr->dyn_ctl_itridx_s = PF_GLINT_DYN_CTL_ITR_INDX_S;
 		intr->dyn_ctl_intrvl_s = PF_GLINT_DYN_CTL_INTERVAL_S;
 		intr->dyn_ctl_wb_on_itr_m = PF_GLINT_DYN_CTL_WB_ON_ITR_M;
+		intr->dyn_ctl_swint_trig_m = PF_GLINT_DYN_CTL_SWINT_TRIG_M;
+		intr->dyn_ctl_sw_itridx_ena_m =
+			PF_GLINT_DYN_CTL_SW_ITR_INDX_ENA_M;
 
 		spacing = IDPF_ITR_IDX_SPACING(reg_vals[vec_id].itrn_index_spacing,
 					       IDPF_PF_ITR_IDX_SPACING);

drivers/net/ethernet/intel/idpf/idpf_txrx.c

@@ -3604,21 +3604,31 @@ static void idpf_vport_intr_dis_irq_all(struct idpf_vport *vport)
 /**
  * idpf_vport_intr_buildreg_itr - Enable default interrupt generation settings
  * @q_vector: pointer to q_vector
- * @type: itr index
- * @itr: itr value
  */
-static u32 idpf_vport_intr_buildreg_itr(struct idpf_q_vector *q_vector,
+static u32 idpf_vport_intr_buildreg_itr(struct idpf_q_vector *q_vector)
-					const int type, u16 itr)
 {
-	u32 itr_val;
+	u32 itr_val = q_vector->intr_reg.dyn_ctl_intena_m;
+	int type = IDPF_NO_ITR_UPDATE_IDX;
+	u16 itr = 0;
+
+	if (q_vector->wb_on_itr) {
+		/*
+		 * Trigger a software interrupt when exiting wb_on_itr, to make
+		 * sure we catch any pending write backs that might have been
+		 * missed due to interrupt state transition.
+		 */
+		itr_val |= q_vector->intr_reg.dyn_ctl_swint_trig_m |
+			   q_vector->intr_reg.dyn_ctl_sw_itridx_ena_m;
+		type = IDPF_SW_ITR_UPDATE_IDX;
+		itr = IDPF_ITR_20K;
+	}
 
 	itr &= IDPF_ITR_MASK;
 	/* Don't clear PBA because that can cause lost interrupts that
 	 * came in while we were cleaning/polling
 	 */
-	itr_val = q_vector->intr_reg.dyn_ctl_intena_m |
+	itr_val |= (type << q_vector->intr_reg.dyn_ctl_itridx_s) |
-		  (type << q_vector->intr_reg.dyn_ctl_itridx_s) |
+		   (itr << (q_vector->intr_reg.dyn_ctl_intrvl_s - 1));
-		  (itr << (q_vector->intr_reg.dyn_ctl_intrvl_s - 1));
 
 	return itr_val;
 }
@@ -3716,9 +3726,8 @@ void idpf_vport_intr_update_itr_ena_irq(struct idpf_q_vector *q_vector)
 	/* net_dim() updates ITR out-of-band using a work item */
 	idpf_net_dim(q_vector);
 
+	intval = idpf_vport_intr_buildreg_itr(q_vector);
 	q_vector->wb_on_itr = false;
-	intval = idpf_vport_intr_buildreg_itr(q_vector,
-					      IDPF_NO_ITR_UPDATE_IDX, 0);
 
 	writel(intval, q_vector->intr_reg.dyn_ctl);
 }

drivers/net/ethernet/intel/idpf/idpf_txrx.h

@@ -354,6 +354,8 @@ struct idpf_vec_regs {
  * @dyn_ctl_itridx_m: Mask for ITR index
  * @dyn_ctl_intrvl_s: Register bit offset for ITR interval
  * @dyn_ctl_wb_on_itr_m: Mask for WB on ITR feature
+ * @dyn_ctl_sw_itridx_ena_m: Mask for SW ITR index
+ * @dyn_ctl_swint_trig_m: Mask for dyn_ctl SW triggered interrupt enable
  * @rx_itr: RX ITR register
  * @tx_itr: TX ITR register
  * @icr_ena: Interrupt cause register offset
@@ -367,6 +369,8 @@ struct idpf_intr_reg {
 	u32 dyn_ctl_itridx_m;
 	u32 dyn_ctl_intrvl_s;
 	u32 dyn_ctl_wb_on_itr_m;
+	u32 dyn_ctl_sw_itridx_ena_m;
+	u32 dyn_ctl_swint_trig_m;
 	void __iomem *rx_itr;
 	void __iomem *tx_itr;
 	void __iomem *icr_ena;
@@ -437,7 +441,7 @@ struct idpf_q_vector {
 	cpumask_var_t affinity_mask;
 	__cacheline_group_end_aligned(cold);
 };
-libeth_cacheline_set_assert(struct idpf_q_vector, 112,
+libeth_cacheline_set_assert(struct idpf_q_vector, 120,
 			    24 + sizeof(struct napi_struct) +
 			    2 * sizeof(struct dim),
 			    8 + sizeof(cpumask_var_t));
@@ -471,6 +475,8 @@ struct idpf_tx_queue_stats {
 #define IDPF_ITR_IS_DYNAMIC(itr_mode) (itr_mode)
 #define IDPF_ITR_TX_DEF		IDPF_ITR_20K
 #define IDPF_ITR_RX_DEF		IDPF_ITR_20K
+/* Index used for 'SW ITR' update in DYN_CTL register */
+#define IDPF_SW_ITR_UPDATE_IDX	2
 /* Index used for 'No ITR' update in DYN_CTL register */
 #define IDPF_NO_ITR_UPDATE_IDX	3
 #define IDPF_ITR_IDX_SPACING(spacing, dflt)	(spacing ? spacing : dflt)

drivers/net/ethernet/intel/idpf/idpf_vf_dev.c

@@ -101,6 +101,9 @@ static int idpf_vf_intr_reg_init(struct idpf_vport *vport)
 		intr->dyn_ctl_itridx_s = VF_INT_DYN_CTLN_ITR_INDX_S;
 		intr->dyn_ctl_intrvl_s = VF_INT_DYN_CTLN_INTERVAL_S;
 		intr->dyn_ctl_wb_on_itr_m = VF_INT_DYN_CTLN_WB_ON_ITR_M;
+		intr->dyn_ctl_swint_trig_m = VF_INT_DYN_CTLN_SWINT_TRIG_M;
+		intr->dyn_ctl_sw_itridx_ena_m =
+			VF_INT_DYN_CTLN_SW_ITR_INDX_ENA_M;
 
 		spacing = IDPF_ITR_IDX_SPACING(reg_vals[vec_id].itrn_index_spacing,
 					       IDPF_VF_ITR_IDX_SPACING);

drivers/net/ethernet/marvell/octeontx2/nic/rep.c

@@ -680,14 +680,17 @@ int rvu_rep_create(struct otx2_nic *priv, struct netlink_ext_ack *extack)
 		ndev->features |= ndev->hw_features;
 		eth_hw_addr_random(ndev);
 		err = rvu_rep_devlink_port_register(rep);
-		if (err)
+		if (err) {
+			free_netdev(ndev);
 			goto exit;
+		}
 
 		SET_NETDEV_DEVLINK_PORT(ndev, &rep->dl_port);
 		err = register_netdev(ndev);
 		if (err) {
 			NL_SET_ERR_MSG_MOD(extack,
 					   "PFVF representor registration failed");
+			rvu_rep_devlink_port_unregister(rep);
 			free_netdev(ndev);
 			goto exit;
 		}

drivers/net/ethernet/mscc/ocelot.c

@@ -1432,7 +1432,7 @@ void ocelot_ifh_set_basic(void *ifh, struct ocelot *ocelot, int port,
 
 	memset(ifh, 0, OCELOT_TAG_LEN);
 	ocelot_ifh_set_bypass(ifh, 1);
-	ocelot_ifh_set_src(ifh, BIT_ULL(ocelot->num_phys_ports));
+	ocelot_ifh_set_src(ifh, ocelot->num_phys_ports);
 	ocelot_ifh_set_dest(ifh, BIT_ULL(port));
 	ocelot_ifh_set_qos_class(ifh, qos_class);
 	ocelot_ifh_set_tag_type(ifh, tag_type);

drivers/net/ethernet/oa_tc6.c

@@ -113,6 +113,7 @@ struct oa_tc6 {
 	struct mii_bus *mdiobus;
 	struct spi_device *spi;
 	struct mutex spi_ctrl_lock; /* Protects spi control transfer */
+	spinlock_t tx_skb_lock; /* Protects tx skb handling */
 	void *spi_ctrl_tx_buf;
 	void *spi_ctrl_rx_buf;
 	void *spi_data_tx_buf;
@@ -1004,8 +1005,10 @@ static u16 oa_tc6_prepare_spi_tx_buf_for_tx_skbs(struct oa_tc6 *tc6)
 	for (used_tx_credits = 0; used_tx_credits < tc6->tx_credits;
 	     used_tx_credits++) {
 		if (!tc6->ongoing_tx_skb) {
+			spin_lock_bh(&tc6->tx_skb_lock);
 			tc6->ongoing_tx_skb = tc6->waiting_tx_skb;
 			tc6->waiting_tx_skb = NULL;
+			spin_unlock_bh(&tc6->tx_skb_lock);
 		}
 		if (!tc6->ongoing_tx_skb)
 			break;
@@ -1111,8 +1114,9 @@ static int oa_tc6_spi_thread_handler(void *data)
 		/* This kthread will be waken up if there is a tx skb or mac-phy
 		 * interrupt to perform spi transfer with tx chunks.
 		 */
-		wait_event_interruptible(tc6->spi_wq, tc6->waiting_tx_skb ||
+		wait_event_interruptible(tc6->spi_wq, tc6->int_flag ||
-					 tc6->int_flag ||
+					 (tc6->waiting_tx_skb &&
+					 tc6->tx_credits) ||
 					 kthread_should_stop());
 
 		if (kthread_should_stop())
@@ -1209,7 +1213,9 @@ netdev_tx_t oa_tc6_start_xmit(struct oa_tc6 *tc6, struct sk_buff *skb)
 		return NETDEV_TX_OK;
 	}
 
+	spin_lock_bh(&tc6->tx_skb_lock);
 	tc6->waiting_tx_skb = skb;
+	spin_unlock_bh(&tc6->tx_skb_lock);
 
 	/* Wake spi kthread to perform spi transfer */
 	wake_up_interruptible(&tc6->spi_wq);
@@ -1239,6 +1245,7 @@ struct oa_tc6 *oa_tc6_init(struct spi_device *spi, struct net_device *netdev)
 	tc6->netdev = netdev;
 	SET_NETDEV_DEV(netdev, &spi->dev);
 	mutex_init(&tc6->spi_ctrl_lock);
+	spin_lock_init(&tc6->tx_skb_lock);
 
 	/* Set the SPI controller to pump at realtime priority */
 	tc6->spi->rt = true;

drivers/net/ethernet/pensando/ionic/ionic_dev.c

@@ -277,7 +277,10 @@ void ionic_dev_teardown(struct ionic *ionic)
 	idev->phy_cmb_pages = 0;
 	idev->cmb_npages = 0;
 
-	destroy_workqueue(ionic->wq);
+	if (ionic->wq) {
+		destroy_workqueue(ionic->wq);
+		ionic->wq = NULL;
+	}
 	mutex_destroy(&idev->cmb_inuse_lock);
 }
 

drivers/net/ethernet/pensando/ionic/ionic_ethtool.c

@@ -961,8 +961,8 @@ static int ionic_get_module_eeprom(struct net_device *netdev,
 	len = min_t(u32, sizeof(xcvr->sprom), ee->len);
 
 	do {
-		memcpy(data, xcvr->sprom, len);
+		memcpy(data, &xcvr->sprom[ee->offset], len);
-		memcpy(tbuf, xcvr->sprom, len);
+		memcpy(tbuf, &xcvr->sprom[ee->offset], len);
 
 		/* Let's make sure we got a consistent copy */
 		if (!memcmp(data, tbuf, len))

drivers/net/ethernet/pensando/ionic/ionic_lif.c

@@ -3869,8 +3869,8 @@ int ionic_lif_register(struct ionic_lif *lif)
 	/* only register LIF0 for now */
 	err = register_netdev(lif->netdev);
 	if (err) {
-		dev_err(lif->ionic->dev, "Cannot register net device, aborting\n");
+		dev_err(lif->ionic->dev, "Cannot register net device: %d, aborting\n", err);
-		ionic_lif_unregister_phc(lif);
+		ionic_lif_unregister(lif);
 		return err;
 	}
 

drivers/net/ethernet/qlogic/qed/qed_mcp.c

@@ -3358,6 +3358,7 @@ int qed_mcp_nvm_info_populate(struct qed_hwfn *p_hwfn)
 					     p_ptt, &nvm_info.num_images);
 	if (rc == -EOPNOTSUPP) {
 		DP_INFO(p_hwfn, "DRV_MSG_CODE_BIST_TEST is not supported\n");
+		nvm_info.num_images = 0;
 		goto out;
 	} else if (rc || !nvm_info.num_images) {
 		DP_ERR(p_hwfn, "Failed getting number of images\n");

drivers/net/ethernet/renesas/rswitch.c

@@ -547,7 +547,6 @@ static int rswitch_gwca_ts_queue_alloc(struct rswitch_private *priv)
 	desc = &gq->ts_ring[gq->ring_size];
 	desc->desc.die_dt = DT_LINKFIX;
 	rswitch_desc_set_dptr(&desc->desc, gq->ring_dma);
-	INIT_LIST_HEAD(&priv->gwca.ts_info_list);
 
 	return 0;
 }
@@ -1003,9 +1002,10 @@ static int rswitch_gwca_request_irqs(struct rswitch_private *priv)
 static void rswitch_ts(struct rswitch_private *priv)
 {
 	struct rswitch_gwca_queue *gq = &priv->gwca.ts_queue;
-	struct rswitch_gwca_ts_info *ts_info, *ts_info2;
 	struct skb_shared_hwtstamps shhwtstamps;
 	struct rswitch_ts_desc *desc;
+	struct rswitch_device *rdev;
+	struct sk_buff *ts_skb;
 	struct timespec64 ts;
 	unsigned int num;
 	u32 tag, port;
@@ -1015,23 +1015,28 @@ static void rswitch_ts(struct rswitch_private *priv)
 		dma_rmb();
 
 		port = TS_DESC_DPN(__le32_to_cpu(desc->desc.dptrl));
+		if (unlikely(port >= RSWITCH_NUM_PORTS))
+			goto next;
+		rdev = priv->rdev[port];
+
 		tag = TS_DESC_TSUN(__le32_to_cpu(desc->desc.dptrl));
+		if (unlikely(tag >= TS_TAGS_PER_PORT))
+			goto next;
+		ts_skb = xchg(&rdev->ts_skb[tag], NULL);
+		smp_mb(); /* order rdev->ts_skb[] read before bitmap update */
+		clear_bit(tag, rdev->ts_skb_used);
 
-		list_for_each_entry_safe(ts_info, ts_info2, &priv->gwca.ts_info_list, list) {
+		if (unlikely(!ts_skb))
-			if (!(ts_info->port == port && ts_info->tag == tag))
+			goto next;
-				continue;
 
-			memset(&shhwtstamps, 0, sizeof(shhwtstamps));
+		memset(&shhwtstamps, 0, sizeof(shhwtstamps));
-			ts.tv_sec = __le32_to_cpu(desc->ts_sec);
+		ts.tv_sec = __le32_to_cpu(desc->ts_sec);
-			ts.tv_nsec = __le32_to_cpu(desc->ts_nsec & cpu_to_le32(0x3fffffff));
+		ts.tv_nsec = __le32_to_cpu(desc->ts_nsec & cpu_to_le32(0x3fffffff));
-			shhwtstamps.hwtstamp = timespec64_to_ktime(ts);
+		shhwtstamps.hwtstamp = timespec64_to_ktime(ts);
-			skb_tstamp_tx(ts_info->skb, &shhwtstamps);
+		skb_tstamp_tx(ts_skb, &shhwtstamps);
-			dev_consume_skb_irq(ts_info->skb);
+		dev_consume_skb_irq(ts_skb);
-			list_del(&ts_info->list);
-			kfree(ts_info);
-			break;
-		}
 
+next:
 		gq->cur = rswitch_next_queue_index(gq, true, 1);
 		desc = &gq->ts_ring[gq->cur];
 	}
@@ -1576,8 +1581,9 @@ static int rswitch_open(struct net_device *ndev)
 static int rswitch_stop(struct net_device *ndev)
 {
 	struct rswitch_device *rdev = netdev_priv(ndev);
-	struct rswitch_gwca_ts_info *ts_info, *ts_info2;
+	struct sk_buff *ts_skb;
 	unsigned long flags;
+	unsigned int tag;
 
 	netif_tx_stop_all_queues(ndev);
 
@@ -1594,12 +1600,13 @@ static int rswitch_stop(struct net_device *ndev)
 	if (bitmap_empty(rdev->priv->opened_ports, RSWITCH_NUM_PORTS))
 		iowrite32(GWCA_TS_IRQ_BIT, rdev->priv->addr + GWTSDID);
 
-	list_for_each_entry_safe(ts_info, ts_info2, &rdev->priv->gwca.ts_info_list, list) {
+	for (tag = find_first_bit(rdev->ts_skb_used, TS_TAGS_PER_PORT);
-		if (ts_info->port != rdev->port)
+	     tag < TS_TAGS_PER_PORT;
-			continue;
+	     tag = find_next_bit(rdev->ts_skb_used, TS_TAGS_PER_PORT, tag + 1)) {
-		dev_kfree_skb_irq(ts_info->skb);
+		ts_skb = xchg(&rdev->ts_skb[tag], NULL);
-		list_del(&ts_info->list);
+		clear_bit(tag, rdev->ts_skb_used);
-		kfree(ts_info);
+		if (ts_skb)
+			dev_kfree_skb(ts_skb);
 	}
 
 	return 0;
@@ -1612,20 +1619,17 @@ static bool rswitch_ext_desc_set_info1(struct rswitch_device *rdev,
 	desc->info1 = cpu_to_le64(INFO1_DV(BIT(rdev->etha->index)) |
 				  INFO1_IPV(GWCA_IPV_NUM) | INFO1_FMT);
 	if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) {
-		struct rswitch_gwca_ts_info *ts_info;
+		unsigned int tag;
 
-		ts_info = kzalloc(sizeof(*ts_info), GFP_ATOMIC);
+		tag = find_first_zero_bit(rdev->ts_skb_used, TS_TAGS_PER_PORT);
-		if (!ts_info)
+		if (tag == TS_TAGS_PER_PORT)
 			return false;
+		smp_mb(); /* order bitmap read before rdev->ts_skb[] write */
+		rdev->ts_skb[tag] = skb_get(skb);
+		set_bit(tag, rdev->ts_skb_used);
 
 		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
-		rdev->ts_tag++;
+		desc->info1 |= cpu_to_le64(INFO1_TSUN(tag) | INFO1_TXC);
-		desc->info1 |= cpu_to_le64(INFO1_TSUN(rdev->ts_tag) | INFO1_TXC);
-
-		ts_info->skb = skb_get(skb);
-		ts_info->port = rdev->port;
-		ts_info->tag = rdev->ts_tag;
-		list_add_tail(&ts_info->list, &rdev->priv->gwca.ts_info_list);
 
 		skb_tx_timestamp(skb);
 	}

drivers/net/ethernet/renesas/rswitch.h

@@ -972,14 +972,6 @@ struct rswitch_gwca_queue {
 	};
 };
 
-struct rswitch_gwca_ts_info {
-	struct sk_buff *skb;
-	struct list_head list;
-
-	int port;
-	u8 tag;
-};
-
 #define RSWITCH_NUM_IRQ_REGS	(RSWITCH_MAX_NUM_QUEUES / BITS_PER_TYPE(u32))
 struct rswitch_gwca {
 	unsigned int index;
@@ -989,7 +981,6 @@ struct rswitch_gwca {
 	struct rswitch_gwca_queue *queues;
 	int num_queues;
 	struct rswitch_gwca_queue ts_queue;
-	struct list_head ts_info_list;
 	DECLARE_BITMAP(used, RSWITCH_MAX_NUM_QUEUES);
 	u32 tx_irq_bits[RSWITCH_NUM_IRQ_REGS];
 	u32 rx_irq_bits[RSWITCH_NUM_IRQ_REGS];
@@ -997,6 +988,7 @@ struct rswitch_gwca {
 };
 
 #define NUM_QUEUES_PER_NDEV	2
+#define TS_TAGS_PER_PORT	256
 struct rswitch_device {
 	struct rswitch_private *priv;
 	struct net_device *ndev;
@@ -1004,7 +996,8 @@ struct rswitch_device {
 	void __iomem *addr;
 	struct rswitch_gwca_queue *tx_queue;
 	struct rswitch_gwca_queue *rx_queue;
-	u8 ts_tag;
+	struct sk_buff *ts_skb[TS_TAGS_PER_PORT];
+	DECLARE_BITMAP(ts_skb_used, TS_TAGS_PER_PORT);
 	bool disabled;
 
 	int port;

drivers/net/mdio/fwnode_mdio.c

@@ -40,6 +40,7 @@ fwnode_find_pse_control(struct fwnode_handle *fwnode)
 static struct mii_timestamper *
 fwnode_find_mii_timestamper(struct fwnode_handle *fwnode)
 {
+	struct mii_timestamper *mii_ts;
 	struct of_phandle_args arg;
 	int err;
 
@@ -53,10 +54,16 @@ fwnode_find_mii_timestamper(struct fwnode_handle *fwnode)
 	else if (err)
 		return ERR_PTR(err);
 
-	if (arg.args_count != 1)
+	if (arg.args_count != 1) {
-		return ERR_PTR(-EINVAL);
+		mii_ts = ERR_PTR(-EINVAL);
+		goto put_node;
+	}
 
-	return register_mii_timestamper(arg.np, arg.args[0]);
+	mii_ts = register_mii_timestamper(arg.np, arg.args[0]);
+
+put_node:
+	of_node_put(arg.np);
+	return mii_ts;
 }
 
 int fwnode_mdiobus_phy_device_register(struct mii_bus *mdio,

drivers/net/netdevsim/health.c

@@ -149,6 +149,8 @@ static ssize_t nsim_dev_health_break_write(struct file *file,
 	char *break_msg;
 	int err;
 
+	if (count == 0 || count > PAGE_SIZE)
+		return -EINVAL;
 	break_msg = memdup_user_nul(data, count);
 	if (IS_ERR(break_msg))
 		return PTR_ERR(break_msg);

drivers/net/netdevsim/netdev.c

@@ -635,10 +635,10 @@ nsim_pp_hold_write(struct file *file, const char __user *data,
 		page_pool_put_full_page(ns->page->pp, ns->page, false);
 		ns->page = NULL;
 	}
-	rtnl_unlock();
 
 exit:
-	return count;
+	rtnl_unlock();
+	return ret;
 }
 
 static const struct file_operations nsim_pp_hold_fops = {

drivers/net/phy/aquantia/aquantia_leds.c

@@ -156,5 +156,5 @@ int aqr_phy_led_polarity_set(struct phy_device *phydev, int index, unsigned long
 	if (force_active_high || force_active_low)
 		return aqr_phy_led_active_low_set(phydev, index, force_active_low);
 
-	unreachable();
+	return -EINVAL;
 }

drivers/net/phy/intel-xway.c

@@ -529,7 +529,7 @@ static int xway_gphy_led_polarity_set(struct phy_device *phydev, int index,
 	if (force_active_high)
 		return phy_clear_bits(phydev, XWAY_MDIO_LED, XWAY_GPHY_LED_INV(index));
 
-	unreachable();
+	return -EINVAL;
 }
 
 static struct phy_driver xway_gphy[] = {

drivers/net/phy/mxl-gpy.c

@@ -1014,7 +1014,7 @@ static int gpy_led_polarity_set(struct phy_device *phydev, int index,
 	if (force_active_high)
 		return phy_clear_bits(phydev, PHY_LED, PHY_LED_POLARITY(index));
 
-	unreachable();
+	return -EINVAL;
 }
 
 static struct phy_driver gpy_drivers[] = {

drivers/net/team/team_core.c

@@ -998,9 +998,13 @@ static void __team_compute_features(struct team *team)
 	unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE |
 					IFF_XMIT_DST_RELEASE_PERM;
 
-	vlan_features = netdev_base_features(vlan_features);
-
 	rcu_read_lock();
+	if (list_empty(&team->port_list))
+		goto done;
+
+	vlan_features = netdev_base_features(vlan_features);
+	enc_features = netdev_base_features(enc_features);
+
 	list_for_each_entry_rcu(port, &team->port_list, list) {
 		vlan_features = netdev_increment_features(vlan_features,
 					port->dev->vlan_features,
@@ -1010,11 +1014,11 @@ static void __team_compute_features(struct team *team)
 						  port->dev->hw_enc_features,
 						  TEAM_ENC_FEATURES);
 
-
 		dst_release_flag &= port->dev->priv_flags;
 		if (port->dev->hard_header_len > max_hard_header_len)
 			max_hard_header_len = port->dev->hard_header_len;
 	}
+done:
 	rcu_read_unlock();
 
 	team->dev->vlan_features = vlan_features;

drivers/net/tun.c

@@ -1481,7 +1481,7 @@ static struct sk_buff *tun_napi_alloc_frags(struct tun_file *tfile,
 	skb->truesize += skb->data_len;
 
 	for (i = 1; i < it->nr_segs; i++) {
-		const struct iovec *iov = iter_iov(it);
+		const struct iovec *iov = iter_iov(it) + i;
 		size_t fragsz = iov->iov_len;
 		struct page *page;
 		void *frag;

drivers/net/usb/qmi_wwan.c

@@ -1429,6 +1429,7 @@ static const struct usb_device_id products[] = {
 	{QMI_QUIRK_SET_DTR(0x2c7c, 0x0195, 4)},	/* Quectel EG95 */
 	{QMI_FIXED_INTF(0x2c7c, 0x0296, 4)},	/* Quectel BG96 */
 	{QMI_QUIRK_SET_DTR(0x2c7c, 0x030e, 4)},	/* Quectel EM05GV2 */
+	{QMI_QUIRK_SET_DTR(0x2c7c, 0x0316, 3)},	/* Quectel RG255C */
 	{QMI_QUIRK_SET_DTR(0x2cb7, 0x0104, 4)},	/* Fibocom NL678 series */
 	{QMI_QUIRK_SET_DTR(0x2cb7, 0x0112, 0)},	/* Fibocom FG132 */
 	{QMI_FIXED_INTF(0x0489, 0xe0b4, 0)},	/* Foxconn T77W968 LTE */

net/core/netdev-genl.c

@@ -430,10 +430,10 @@ static int
 netdev_nl_queue_fill(struct sk_buff *rsp, struct net_device *netdev, u32 q_idx,
 		     u32 q_type, const struct genl_info *info)
 {
-	int err = 0;
+	int err;
 
 	if (!(netdev->flags & IFF_UP))
-		return err;
+		return -ENOENT;
 
 	err = netdev_nl_queue_validate(netdev, q_idx, q_type);
 	if (err)
@@ -488,24 +488,21 @@ netdev_nl_queue_dump_one(struct net_device *netdev, struct sk_buff *rsp,
 			 struct netdev_nl_dump_ctx *ctx)
 {
 	int err = 0;
-	int i;
 
 	if (!(netdev->flags & IFF_UP))
 		return err;
 
-	for (i = ctx->rxq_idx; i < netdev->real_num_rx_queues;) {
+	for (; ctx->rxq_idx < netdev->real_num_rx_queues; ctx->rxq_idx++) {
-		err = netdev_nl_queue_fill_one(rsp, netdev, i,
+		err = netdev_nl_queue_fill_one(rsp, netdev, ctx->rxq_idx,
 					       NETDEV_QUEUE_TYPE_RX, info);
 		if (err)
 			return err;
-		ctx->rxq_idx = i++;
 	}
-	for (i = ctx->txq_idx; i < netdev->real_num_tx_queues;) {
+	for (; ctx->txq_idx < netdev->real_num_tx_queues; ctx->txq_idx++) {
-		err = netdev_nl_queue_fill_one(rsp, netdev, i,
+		err = netdev_nl_queue_fill_one(rsp, netdev, ctx->txq_idx,
 					       NETDEV_QUEUE_TYPE_TX, info);
 		if (err)
 			return err;
-		ctx->txq_idx = i++;
 	}
 
 	return err;
@@ -671,7 +668,7 @@ netdev_nl_stats_by_queue(struct net_device *netdev, struct sk_buff *rsp,
 					    i, info);
 		if (err)
 			return err;
-		ctx->rxq_idx = i++;
+		ctx->rxq_idx = ++i;
 	}
 	i = ctx->txq_idx;
 	while (ops->get_queue_stats_tx && i < netdev->real_num_tx_queues) {
@@ -679,7 +676,7 @@ netdev_nl_stats_by_queue(struct net_device *netdev, struct sk_buff *rsp,
 					    i, info);
 		if (err)
 			return err;
-		ctx->txq_idx = i++;
+		ctx->txq_idx = ++i;
 	}
 
 	ctx->rxq_idx = 0;

net/core/rtnetlink.c

@@ -3819,6 +3819,7 @@ static int rtnl_newlink_create(struct sk_buff *skb, struct ifinfomsg *ifm,
 }
 
 static struct net *rtnl_get_peer_net(const struct rtnl_link_ops *ops,
+				     struct nlattr *tbp[],
 				     struct nlattr *data[],
 				     struct netlink_ext_ack *extack)
 {
@@ -3826,7 +3827,7 @@ static struct net *rtnl_get_peer_net(const struct rtnl_link_ops *ops,
 	int err;
 
 	if (!data || !data[ops->peer_type])
-		return NULL;
+		return rtnl_link_get_net_ifla(tbp);
 
 	err = rtnl_nla_parse_ifinfomsg(tb, data[ops->peer_type], extack);
 	if (err < 0)
@@ -3971,7 +3972,7 @@ static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh,
 		}
 
 		if (ops->peer_type) {
-			peer_net = rtnl_get_peer_net(ops, data, extack);
+			peer_net = rtnl_get_peer_net(ops, tb, data, extack);
 			if (IS_ERR(peer_net)) {
 				ret = PTR_ERR(peer_net);
 				goto put_ops;

net/dsa/tag.h

@@ -138,9 +138,10 @@ static inline void dsa_software_untag_vlan_unaware_bridge(struct sk_buff *skb,
  * dsa_software_vlan_untag: Software VLAN untagging in DSA receive path
  * @skb: Pointer to socket buffer (packet)
  *
- * Receive path method for switches which cannot avoid tagging all packets
+ * Receive path method for switches which send some packets as VLAN-tagged
- * towards the CPU port. Called when ds->untag_bridge_pvid (legacy) or
+ * towards the CPU port (generally from VLAN-aware bridge ports) even when the
- * ds->untag_vlan_aware_bridge_pvid is set to true.
+ * packet was not tagged on the wire. Called when ds->untag_bridge_pvid
+ * (legacy) or ds->untag_vlan_aware_bridge_pvid is set to true.
  *
  * As a side effect of this method, any VLAN tag from the skb head is moved
  * to hwaccel.
@@ -149,14 +150,19 @@ static inline struct sk_buff *dsa_software_vlan_untag(struct sk_buff *skb)
 {
 	struct dsa_port *dp = dsa_user_to_port(skb->dev);
 	struct net_device *br = dsa_port_bridge_dev_get(dp);
-	u16 vid;
+	u16 vid, proto;
+	int err;
 
 	/* software untagging for standalone ports not yet necessary */
 	if (!br)
 		return skb;
 
+	err = br_vlan_get_proto(br, &proto);
+	if (err)
+		return skb;
+
 	/* Move VLAN tag from data to hwaccel */
-	if (!skb_vlan_tag_present(skb)) {
+	if (!skb_vlan_tag_present(skb) && skb->protocol == htons(proto)) {
 		skb = skb_vlan_untag(skb);
 		if (!skb)
 			return NULL;

net/mctp/route.c

@@ -374,8 +374,13 @@ static int mctp_route_input(struct mctp_route *route, struct sk_buff *skb)
 	msk = NULL;
 	rc = -EINVAL;
 
-	/* we may be receiving a locally-routed packet; drop source sk
+	/* We may be receiving a locally-routed packet; drop source sk
-	 * accounting
+	 * accounting.
+	 *
+	 * From here, we will either queue the skb - either to a frag_queue, or
+	 * to a receiving socket. When that succeeds, we clear the skb pointer;
+	 * a non-NULL skb on exit will be otherwise unowned, and hence
+	 * kfree_skb()-ed.
 	 */
 	skb_orphan(skb);
 
@@ -434,7 +439,9 @@ static int mctp_route_input(struct mctp_route *route, struct sk_buff *skb)
 		 * pending key.
 		 */
 		if (flags & MCTP_HDR_FLAG_EOM) {
-			sock_queue_rcv_skb(&msk->sk, skb);
+			rc = sock_queue_rcv_skb(&msk->sk, skb);
+			if (!rc)
+				skb = NULL;
 			if (key) {
 				/* we've hit a pending reassembly; not much we
 				 * can do but drop it
@@ -443,7 +450,6 @@ static int mctp_route_input(struct mctp_route *route, struct sk_buff *skb)
 						   MCTP_TRACE_KEY_REPLIED);
 				key = NULL;
 			}
-			rc = 0;
 			goto out_unlock;
 		}
 
@@ -470,8 +476,10 @@ static int mctp_route_input(struct mctp_route *route, struct sk_buff *skb)
 			 * this function.
 			 */
 			rc = mctp_key_add(key, msk);
-			if (!rc)
+			if (!rc) {
 				trace_mctp_key_acquire(key);
+				skb = NULL;
+			}
 
 			/* we don't need to release key->lock on exit, so
 			 * clean up here and suppress the unlock via
@@ -489,6 +497,8 @@ static int mctp_route_input(struct mctp_route *route, struct sk_buff *skb)
 				key = NULL;
 			} else {
 				rc = mctp_frag_queue(key, skb);
+				if (!rc)
+					skb = NULL;
 			}
 		}
 
@@ -503,12 +513,19 @@ static int mctp_route_input(struct mctp_route *route, struct sk_buff *skb)
 		else
 			rc = mctp_frag_queue(key, skb);
 
+		if (rc)
+			goto out_unlock;
+
+		/* we've queued; the queue owns the skb now */
+		skb = NULL;
+
 		/* end of message? deliver to socket, and we're done with
 		 * the reassembly/response key
 		 */
-		if (!rc && flags & MCTP_HDR_FLAG_EOM) {
+		if (flags & MCTP_HDR_FLAG_EOM) {
-			sock_queue_rcv_skb(key->sk, key->reasm_head);
+			rc = sock_queue_rcv_skb(key->sk, key->reasm_head);
-			key->reasm_head = NULL;
+			if (!rc)
+				key->reasm_head = NULL;
 			__mctp_key_done_in(key, net, f, MCTP_TRACE_KEY_REPLIED);
 			key = NULL;
 		}
@@ -527,8 +544,7 @@ static int mctp_route_input(struct mctp_route *route, struct sk_buff *skb)
 	if (any_key)
 		mctp_key_unref(any_key);
 out:
-	if (rc)
+	kfree_skb(skb);
-		kfree_skb(skb);
 	return rc;
 }
 

net/mctp/test/route-test.c

@@ -837,6 +837,90 @@ static void mctp_test_route_input_multiple_nets_key(struct kunit *test)
 	mctp_test_route_input_multiple_nets_key_fini(test, &t2);
 }
 
+/* Input route to socket, using a single-packet message, where sock delivery
+ * fails. Ensure we're handling the failure appropriately.
+ */
+static void mctp_test_route_input_sk_fail_single(struct kunit *test)
+{
+	const struct mctp_hdr hdr = RX_HDR(1, 10, 8, FL_S | FL_E | FL_TO);
+	struct mctp_test_route *rt;
+	struct mctp_test_dev *dev;
+	struct socket *sock;
+	struct sk_buff *skb;
+	int rc;
+
+	__mctp_route_test_init(test, &dev, &rt, &sock, MCTP_NET_ANY);
+
+	/* No rcvbuf space, so delivery should fail. __sock_set_rcvbuf will
+	 * clamp the minimum to SOCK_MIN_RCVBUF, so we open-code this.
+	 */
+	lock_sock(sock->sk);
+	WRITE_ONCE(sock->sk->sk_rcvbuf, 0);
+	release_sock(sock->sk);
+
+	skb = mctp_test_create_skb(&hdr, 10);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb);
+	skb_get(skb);
+
+	mctp_test_skb_set_dev(skb, dev);
+
+	/* do route input, which should fail */
+	rc = mctp_route_input(&rt->rt, skb);
+	KUNIT_EXPECT_NE(test, rc, 0);
+
+	/* we should hold the only reference to skb */
+	KUNIT_EXPECT_EQ(test, refcount_read(&skb->users), 1);
+	kfree_skb(skb);
+
+	__mctp_route_test_fini(test, dev, rt, sock);
+}
+
+/* Input route to socket, using a fragmented message, where sock delivery fails.
+ */
+static void mctp_test_route_input_sk_fail_frag(struct kunit *test)
+{
+	const struct mctp_hdr hdrs[2] = { RX_FRAG(FL_S, 0), RX_FRAG(FL_E, 1) };
+	struct mctp_test_route *rt;
+	struct mctp_test_dev *dev;
+	struct sk_buff *skbs[2];
+	struct socket *sock;
+	unsigned int i;
+	int rc;
+
+	__mctp_route_test_init(test, &dev, &rt, &sock, MCTP_NET_ANY);
+
+	lock_sock(sock->sk);
+	WRITE_ONCE(sock->sk->sk_rcvbuf, 0);
+	release_sock(sock->sk);
+
+	for (i = 0; i < ARRAY_SIZE(skbs); i++) {
+		skbs[i] = mctp_test_create_skb(&hdrs[i], 10);
+		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skbs[i]);
+		skb_get(skbs[i]);
+
+		mctp_test_skb_set_dev(skbs[i], dev);
+	}
+
+	/* first route input should succeed, we're only queueing to the
+	 * frag list
+	 */
+	rc = mctp_route_input(&rt->rt, skbs[0]);
+	KUNIT_EXPECT_EQ(test, rc, 0);
+
+	/* final route input should fail to deliver to the socket */
+	rc = mctp_route_input(&rt->rt, skbs[1]);
+	KUNIT_EXPECT_NE(test, rc, 0);
+
+	/* we should hold the only reference to both skbs */
+	KUNIT_EXPECT_EQ(test, refcount_read(&skbs[0]->users), 1);
+	kfree_skb(skbs[0]);
+
+	KUNIT_EXPECT_EQ(test, refcount_read(&skbs[1]->users), 1);
+	kfree_skb(skbs[1]);
+
+	__mctp_route_test_fini(test, dev, rt, sock);
+}
+
 #if IS_ENABLED(CONFIG_MCTP_FLOWS)
 
 static void mctp_test_flow_init(struct kunit *test,
@@ -1053,6 +1137,8 @@ static struct kunit_case mctp_test_cases[] = {
 			 mctp_route_input_sk_reasm_gen_params),
 	KUNIT_CASE_PARAM(mctp_test_route_input_sk_keys,
 			 mctp_route_input_sk_keys_gen_params),
+	KUNIT_CASE(mctp_test_route_input_sk_fail_single),
+	KUNIT_CASE(mctp_test_route_input_sk_fail_frag),
 	KUNIT_CASE(mctp_test_route_input_multiple_nets_bind),
 	KUNIT_CASE(mctp_test_route_input_multiple_nets_key),
 	KUNIT_CASE(mctp_test_packet_flow),

net/netfilter/ipset/ip_set_list_set.c

@@ -611,6 +611,8 @@ init_list_set(struct net *net, struct ip_set *set, u32 size)
 	return true;
 }
 
+static struct lock_class_key list_set_lockdep_key;
+
 static int
 list_set_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
 		u32 flags)
@@ -627,6 +629,7 @@ list_set_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
 	if (size < IP_SET_LIST_MIN_SIZE)
 		size = IP_SET_LIST_MIN_SIZE;
 
+	lockdep_set_class(&set->lock, &list_set_lockdep_key);
 	set->variant = &set_variant;
 	set->dsize = ip_set_elem_len(set, tb, sizeof(struct set_elem),
 				     __alignof__(struct set_elem));

net/netfilter/ipvs/ip_vs_conn.c

@@ -1495,8 +1495,8 @@ int __init ip_vs_conn_init(void)
 	max_avail -= 2;		/* ~4 in hash row */
 	max_avail -= 1;		/* IPVS up to 1/2 of mem */
 	max_avail -= order_base_2(sizeof(struct ip_vs_conn));
-	max = clamp(max, min, max_avail);
+	max = clamp(max_avail, min, max);
-	ip_vs_conn_tab_bits = clamp_val(ip_vs_conn_tab_bits, min, max);
+	ip_vs_conn_tab_bits = clamp(ip_vs_conn_tab_bits, min, max);
 	ip_vs_conn_tab_size = 1 << ip_vs_conn_tab_bits;
 	ip_vs_conn_tab_mask = ip_vs_conn_tab_size - 1;
 

net/psample/psample.c

@@ -393,7 +393,9 @@ void psample_sample_packet(struct psample_group *group,
 		   nla_total_size_64bit(sizeof(u64)) +	/* timestamp */
 		   nla_total_size(sizeof(u16)) +	/* protocol */
 		   (md->user_cookie_len ?
-		    nla_total_size(md->user_cookie_len) : 0); /* user cookie */
+		    nla_total_size(md->user_cookie_len) : 0) + /* user cookie */
+		   (md->rate_as_probability ?
+		    nla_total_size(0) : 0);	/* rate as probability */
 
 #ifdef CONFIG_INET
 	tun_info = skb_tunnel_info(skb);
@@ -498,8 +500,9 @@ void psample_sample_packet(struct psample_group *group,
 		    md->user_cookie))
 		goto error;
 
-	if (md->rate_as_probability)
+	if (md->rate_as_probability &&
-		nla_put_flag(nl_skb, PSAMPLE_ATTR_SAMPLE_PROBABILITY);
+	    nla_put_flag(nl_skb, PSAMPLE_ATTR_SAMPLE_PROBABILITY))
+		goto error;
 
 	genlmsg_end(nl_skb, data);
 	genlmsg_multicast_netns(&psample_nl_family, group->net, nl_skb, 0,

net/smc/af_smc.c

@@ -2032,6 +2032,8 @@ static int smc_listen_prfx_check(struct smc_sock *new_smc,
 	if (pclc->hdr.typev1 == SMC_TYPE_N)
 		return 0;
 	pclc_prfx = smc_clc_proposal_get_prefix(pclc);
+	if (!pclc_prfx)
+		return -EPROTO;
 	if (smc_clc_prfx_match(newclcsock, pclc_prfx))
 		return SMC_CLC_DECL_DIFFPREFIX;
 
@@ -2145,6 +2147,8 @@ static void smc_find_ism_v2_device_serv(struct smc_sock *new_smc,
 	pclc_smcd = smc_get_clc_msg_smcd(pclc);
 	smc_v2_ext = smc_get_clc_v2_ext(pclc);
 	smcd_v2_ext = smc_get_clc_smcd_v2_ext(smc_v2_ext);
+	if (!pclc_smcd || !smc_v2_ext || !smcd_v2_ext)
+		goto not_found;
 
 	mutex_lock(&smcd_dev_list.mutex);
 	if (pclc_smcd->ism.chid) {
@@ -2221,7 +2225,9 @@ static void smc_find_ism_v1_device_serv(struct smc_sock *new_smc,
 	int rc = 0;
 
 	/* check if ISM V1 is available */
-	if (!(ini->smcd_version & SMC_V1) || !smcd_indicated(ini->smc_type_v1))
+	if (!(ini->smcd_version & SMC_V1) ||
+	    !smcd_indicated(ini->smc_type_v1) ||
+	    !pclc_smcd)
 		goto not_found;
 	ini->is_smcd = true; /* prepare ISM check */
 	ini->ism_peer_gid[0].gid = ntohll(pclc_smcd->ism.gid);
@@ -2272,7 +2278,8 @@ static void smc_find_rdma_v2_device_serv(struct smc_sock *new_smc,
 		goto not_found;
 
 	smc_v2_ext = smc_get_clc_v2_ext(pclc);
-	if (!smc_clc_match_eid(ini->negotiated_eid, smc_v2_ext, NULL, NULL))
+	if (!smc_v2_ext ||
+	    !smc_clc_match_eid(ini->negotiated_eid, smc_v2_ext, NULL, NULL))
 		goto not_found;
 
 	/* prepare RDMA check */
@@ -2881,6 +2888,13 @@ __poll_t smc_poll(struct file *file, struct socket *sock,
 			} else {
 				sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);
 				set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
+
+				if (sk->sk_state != SMC_INIT) {
+					/* Race breaker the same way as tcp_poll(). */
+					smp_mb__after_atomic();
+					if (atomic_read(&smc->conn.sndbuf_space))
+						mask |= EPOLLOUT | EPOLLWRNORM;
+				}
 			}
 			if (atomic_read(&smc->conn.bytes_to_rcv))
 				mask |= EPOLLIN | EPOLLRDNORM;

net/smc/smc_clc.c

@@ -352,8 +352,11 @@ static bool smc_clc_msg_prop_valid(struct smc_clc_msg_proposal *pclc)
 	struct smc_clc_msg_hdr *hdr = &pclc->hdr;
 	struct smc_clc_v2_extension *v2_ext;
 
-	v2_ext = smc_get_clc_v2_ext(pclc);
 	pclc_prfx = smc_clc_proposal_get_prefix(pclc);
+	if (!pclc_prfx ||
+	    pclc_prfx->ipv6_prefixes_cnt > SMC_CLC_MAX_V6_PREFIX)
+		return false;
+
 	if (hdr->version == SMC_V1) {
 		if (hdr->typev1 == SMC_TYPE_N)
 			return false;
@@ -365,6 +368,13 @@ static bool smc_clc_msg_prop_valid(struct smc_clc_msg_proposal *pclc)
 			sizeof(struct smc_clc_msg_trail))
 			return false;
 	} else {
+		v2_ext = smc_get_clc_v2_ext(pclc);
+		if ((hdr->typev2 != SMC_TYPE_N &&
+		     (!v2_ext || v2_ext->hdr.eid_cnt > SMC_CLC_MAX_UEID)) ||
+		    (smcd_indicated(hdr->typev2) &&
+		     v2_ext->hdr.ism_gid_cnt > SMCD_CLC_MAX_V2_GID_ENTRIES))
+			return false;
+
 		if (ntohs(hdr->length) !=
 			sizeof(*pclc) +
 			sizeof(struct smc_clc_msg_smcd) +
@@ -764,6 +774,11 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
 						SMC_CLC_RECV_BUF_LEN : datlen;
 		iov_iter_kvec(&msg.msg_iter, ITER_DEST, &vec, 1, recvlen);
 		len = sock_recvmsg(smc->clcsock, &msg, krflags);
+		if (len < recvlen) {
+			smc->sk.sk_err = EPROTO;
+			reason_code = -EPROTO;
+			goto out;
+		}
 		datlen -= len;
 	}
 	if (clcm->type == SMC_CLC_DECLINE) {

net/smc/smc_clc.h

@@ -336,8 +336,12 @@ struct smc_clc_msg_decline_v2 {	/* clc decline message */
 static inline struct smc_clc_msg_proposal_prefix *
 smc_clc_proposal_get_prefix(struct smc_clc_msg_proposal *pclc)
 {
+	u16 offset = ntohs(pclc->iparea_offset);
+
+	if (offset > sizeof(struct smc_clc_msg_smcd))
+		return NULL;
 	return (struct smc_clc_msg_proposal_prefix *)
-	       ((u8 *)pclc + sizeof(*pclc) + ntohs(pclc->iparea_offset));
+	       ((u8 *)pclc + sizeof(*pclc) + offset);
 }
 
 static inline bool smcr_indicated(int smc_type)
@@ -376,8 +380,14 @@ static inline struct smc_clc_v2_extension *
 smc_get_clc_v2_ext(struct smc_clc_msg_proposal *prop)
 {
 	struct smc_clc_msg_smcd *prop_smcd = smc_get_clc_msg_smcd(prop);
+	u16 max_offset;
 
-	if (!prop_smcd || !ntohs(prop_smcd->v2_ext_offset))
+	max_offset = offsetof(struct smc_clc_msg_proposal_area, pclc_v2_ext) -
+		     offsetof(struct smc_clc_msg_proposal_area, pclc_smcd) -
+		     offsetofend(struct smc_clc_msg_smcd, v2_ext_offset);
+
+	if (!prop_smcd || !ntohs(prop_smcd->v2_ext_offset) ||
+	    ntohs(prop_smcd->v2_ext_offset) > max_offset)
 		return NULL;
 
 	return (struct smc_clc_v2_extension *)
@@ -390,9 +400,15 @@ smc_get_clc_v2_ext(struct smc_clc_msg_proposal *prop)
 static inline struct smc_clc_smcd_v2_extension *
 smc_get_clc_smcd_v2_ext(struct smc_clc_v2_extension *prop_v2ext)
 {
+	u16 max_offset = offsetof(struct smc_clc_msg_proposal_area, pclc_smcd_v2_ext) -
+		offsetof(struct smc_clc_msg_proposal_area, pclc_v2_ext) -
+		offsetof(struct smc_clc_v2_extension, hdr) -
+		offsetofend(struct smc_clnt_opts_area_hdr, smcd_v2_ext_offset);
+
 	if (!prop_v2ext)
 		return NULL;
-	if (!ntohs(prop_v2ext->hdr.smcd_v2_ext_offset))
+	if (!ntohs(prop_v2ext->hdr.smcd_v2_ext_offset) ||
+	    ntohs(prop_v2ext->hdr.smcd_v2_ext_offset) > max_offset)
 		return NULL;
 
 	return (struct smc_clc_smcd_v2_extension *)

net/smc/smc_core.c

@@ -1818,7 +1818,9 @@ void smcr_link_down_cond_sched(struct smc_link *lnk)
 {
 	if (smc_link_downing(&lnk->state)) {
 		trace_smcr_link_down(lnk, __builtin_return_address(0));
-		schedule_work(&lnk->link_down_wrk);
+		smcr_link_hold(lnk); /* smcr_link_put in link_down_wrk */
+		if (!schedule_work(&lnk->link_down_wrk))
+			smcr_link_put(lnk);
 	}
 }
 
@@ -1850,11 +1852,14 @@ static void smc_link_down_work(struct work_struct *work)
 	struct smc_link_group *lgr = link->lgr;
 
 	if (list_empty(&lgr->list))
-		return;
+		goto out;
 	wake_up_all(&lgr->llc_msg_waiter);
 	down_write(&lgr->llc_conf_mutex);
 	smcr_link_down(link);
 	up_write(&lgr->llc_conf_mutex);
+
+out:
+	smcr_link_put(link); /* smcr_link_hold by schedulers of link_down_work */
 }
 
 static int smc_vlan_by_tcpsk_walk(struct net_device *lower_dev,

rust/kernel/net/phy.rs

@@ -860,7 +860,7 @@ const fn as_int(&self) -> u32 {
 /// ];
 /// #[cfg(MODULE)]
 /// #[no_mangle]
-/// static __mod_mdio__phydev_device_table: [::kernel::bindings::mdio_device_id; 2] = _DEVICE_TABLE;
+/// static __mod_device_table__mdio__phydev: [::kernel::bindings::mdio_device_id; 2] = _DEVICE_TABLE;
 /// ```
 #[macro_export]
 macro_rules! module_phy_driver {
@@ -883,7 +883,7 @@ macro_rules! module_phy_driver {
 
         #[cfg(MODULE)]
         #[no_mangle]
-        static __mod_mdio__phydev_device_table: [$crate::bindings::mdio_device_id;
+        static __mod_device_table__mdio__phydev: [$crate::bindings::mdio_device_id;
             $crate::module_phy_driver!(@count_devices $($dev),+) + 1] = _DEVICE_TABLE;
     };
 

tools/net/ynl/lib/ynl.py

@@ -556,10 +556,10 @@ class YnlFamily(SpecFamily):
         if attr["type"] == 'nest':
             nl_type |= Netlink.NLA_F_NESTED
             attr_payload = b''
-            sub_attrs = SpaceAttrs(self.attr_sets[space], value, search_attrs)
+            sub_space = attr['nested-attributes']
+            sub_attrs = SpaceAttrs(self.attr_sets[sub_space], value, search_attrs)
             for subname, subvalue in value.items():
-                attr_payload += self._add_attr(attr['nested-attributes'],
+                attr_payload += self._add_attr(sub_space, subname, subvalue, sub_attrs)
-                                               subname, subvalue, sub_attrs)
         elif attr["type"] == 'flag':
             if not value:
                 # If value is absent or false then skip attribute creation.

tools/testing/selftests/drivers/net/queues.py

@@ -8,25 +8,28 @@ from lib.py import cmd
 import glob
 
 
-def sys_get_queues(ifname) -> int:
+def sys_get_queues(ifname, qtype='rx') -> int:
-    folders = glob.glob(f'/sys/class/net/{ifname}/queues/rx-*')
+    folders = glob.glob(f'/sys/class/net/{ifname}/queues/{qtype}-*')
     return len(folders)
 
 
-def nl_get_queues(cfg, nl):
+def nl_get_queues(cfg, nl, qtype='rx'):
     queues = nl.queue_get({'ifindex': cfg.ifindex}, dump=True)
     if queues:
-        return len([q for q in queues if q['type'] == 'rx'])
+        return len([q for q in queues if q['type'] == qtype])
     return None
 
 
 def get_queues(cfg, nl) -> None:
-    queues = nl_get_queues(cfg, nl)
+    snl = NetdevFamily(recv_size=4096)
-    if not queues:
-        raise KsftSkipEx('queue-get not supported by device')
 
-    expected = sys_get_queues(cfg.dev['ifname'])
+    for qtype in ['rx', 'tx']:
-    ksft_eq(queues, expected)
+        queues = nl_get_queues(cfg, snl, qtype)
+        if not queues:
+            raise KsftSkipEx('queue-get not supported by device')
+
+        expected = sys_get_queues(cfg.dev['ifname'], qtype)
+        ksft_eq(queues, expected)
 
 
 def addremove_queues(cfg, nl) -> None:
@@ -57,7 +60,7 @@ def addremove_queues(cfg, nl) -> None:
 
 
 def main() -> None:
-    with NetDrvEnv(__file__, queue_count=3) as cfg:
+    with NetDrvEnv(__file__, queue_count=100) as cfg:
         ksft_run([get_queues, addremove_queues], args=(cfg, NetdevFamily()))
     ksft_exit()
 

tools/testing/selftests/drivers/net/stats.py

@@ -110,6 +110,23 @@ def qstat_by_ifindex(cfg) -> None:
             ksft_ge(triple[1][key], triple[0][key], comment="bad key: " + key)
             ksft_ge(triple[2][key], triple[1][key], comment="bad key: " + key)
 
+    # Sanity check the dumps
+    queues = NetdevFamily(recv_size=4096).qstats_get({"scope": "queue"}, dump=True)
+    # Reformat the output into {ifindex: {rx: [id, id, ...], tx: [id, id, ...]}}
+    parsed = {}
+    for entry in queues:
+        ifindex = entry["ifindex"]
+        if ifindex not in parsed:
+            parsed[ifindex] = {"rx":[], "tx": []}
+        parsed[ifindex][entry["queue-type"]].append(entry['queue-id'])
+    # Now, validate
+    for ifindex, queues in parsed.items():
+        for qtype in ['rx', 'tx']:
+            ksft_eq(len(queues[qtype]), len(set(queues[qtype])),
+                    comment="repeated queue keys")
+            ksft_eq(len(queues[qtype]), max(queues[qtype]) + 1,
+                    comment="missing queue keys")
+
     # Test invalid dumps
     # 0 is invalid
     with ksft_raises(NlError) as cm:
@@ -158,7 +175,7 @@ def check_down(cfg) -> None:
 
 
 def main() -> None:
-    with NetDrvEnv(__file__) as cfg:
+    with NetDrvEnv(__file__, queue_count=100) as cfg:
         ksft_run([check_pause, check_fec, pkt_byte_sum, qstat_by_ifindex,
                   check_down],
                  args=(cfg, ))

tools/testing/selftests/net/lib/py/ynl.py

@@ -32,23 +32,23 @@ except ModuleNotFoundError as e:
 # Set schema='' to avoid jsonschema validation, it's slow
 #
 class EthtoolFamily(YnlFamily):
-    def __init__(self):
+    def __init__(self, recv_size=0):
         super().__init__((SPEC_PATH / Path('ethtool.yaml')).as_posix(),
-                         schema='')
+                         schema='', recv_size=recv_size)
 
 
 class RtnlFamily(YnlFamily):
-    def __init__(self):
+    def __init__(self, recv_size=0):
         super().__init__((SPEC_PATH / Path('rt_link.yaml')).as_posix(),
-                         schema='')
+                         schema='', recv_size=recv_size)
 
 
 class NetdevFamily(YnlFamily):
-    def __init__(self):
+    def __init__(self, recv_size=0):
         super().__init__((SPEC_PATH / Path('netdev.yaml')).as_posix(),
-                         schema='')
+                         schema='', recv_size=recv_size)
 
 class NetshaperFamily(YnlFamily):
-    def __init__(self):
+    def __init__(self, recv_size=0):
         super().__init__((SPEC_PATH / Path('net_shaper.yaml')).as_posix(),
-                         schema='')
+                         schema='', recv_size=recv_size)

tools/testing/selftests/net/openvswitch/openvswitch.sh

@@ -171,8 +171,10 @@ ovs_add_netns_and_veths () {
 		ovs_add_if "$1" "$2" "$4" -u || return 1
 	fi
 
-	[ $TRACING -eq 1 ] && ovs_netns_spawn_daemon "$1" "$ns" \
+	if [ $TRACING -eq 1 ]; then
-			tcpdump -i any -s 65535
+		ovs_netns_spawn_daemon "$1" "$3" tcpdump -l -i any -s 6553
+		ovs_wait grep -q "listening on any" ${ovs_dir}/stderr
+	fi
 
 	return 0
 }