Merge tag 'net-6.6-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

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

  Most regressions addressed here come from quite old versions, with the
  exceptions of the iavf one and the WiFi fixes. No known outstanding
  reports or investigation.

  Fixes to fixes:

   - eth: iavf: in iavf_down, disable queues when removing the driver

  Previous releases - regressions:

   - sched: act_ct: additional checks for outdated flows

   - tcp: do not leave an empty skb in write queue

   - tcp: fix wrong RTO timeout when received SACK reneging

   - wifi: cfg80211: pass correct pointer to rdev_inform_bss()

   - eth: i40e: sync next_to_clean and next_to_process for programming
     status desc

   - eth: iavf: initialize waitqueues before starting watchdog_task

  Previous releases - always broken:

   - eth: r8169: fix data-races

   - eth: igb: fix potential memory leak in igb_add_ethtool_nfc_entry

   - eth: r8152: avoid writing garbage to the adapter's registers

   - eth: gtp: fix fragmentation needed check with gso"

* tag 'net-6.6-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (43 commits)
  iavf: in iavf_down, disable queues when removing the driver
  vsock/virtio: initialize the_virtio_vsock before using VQs
  net: ipv6: fix typo in comments
  net: ipv4: fix typo in comments
  net/sched: act_ct: additional checks for outdated flows
  netfilter: flowtable: GC pushes back packets to classic path
  i40e: Fix wrong check for I40E_TXR_FLAGS_WB_ON_ITR
  gtp: fix fragmentation needed check with gso
  gtp: uapi: fix GTPA_MAX
  Fix NULL pointer dereference in cn_filter()
  sfc: cleanup and reduce netlink error messages
  net/handshake: fix file ref count in handshake_nl_accept_doit()
  wifi: mac80211: don't drop all unprotected public action frames
  wifi: cfg80211: fix assoc response warning on failed links
  wifi: cfg80211: pass correct pointer to rdev_inform_bss()
  isdn: mISDN: hfcsusb: Spelling fix in comment
  tcp: fix wrong RTO timeout when received SACK reneging
  r8152: Block future register access if register access fails
  r8152: Rename RTL8152_UNPLUG to RTL8152_INACCESSIBLE
  r8152: Check for unplug in r8153b_ups_en() / r8153c_ups_en()
  ...

19 files changed, 338 insertions, 135 deletions

diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 05d562e9c8b1..44b19e696176 100644
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -54,7 +54,7 @@ static int cn_filter(struct sock *dsk, struct sk_buff *skb, void *data)
 	enum proc_cn_mcast_op mc_op;
 	uintptr_t val;
 
-	if (!dsk || !data)
+	if (!dsk || !dsk->sk_user_data || !data)
 		return 0;
 
 	ptr = (__u32 *)data;
diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c b/drivers/isdn/hardware/mISDN/hfcsusb.c
index 1efd17979f24..b82b89888a5e 100644
--- a/drivers/isdn/hardware/mISDN/hfcsusb.c
+++ b/drivers/isdn/hardware/mISDN/hfcsusb.c
@@ -678,7 +678,7 @@ ph_state(struct dchannel *dch)
 }
 
 /*
- * disable/enable BChannel for desired protocoll
+ * disable/enable BChannel for desired protocol
  */
 static int
 hfcsusb_setup_bch(struct bchannel *bch, int protocol)
diff --git a/drivers/net/ethernet/adi/adin1110.c b/drivers/net/ethernet/adi/adin1110.c
index ca66b747b7c5..d7c274af6d4d 100644
--- a/drivers/net/ethernet/adi/adin1110.c
+++ b/drivers/net/ethernet/adi/adin1110.c
@@ -294,7 +294,7 @@ static int adin1110_read_fifo(struct adin1110_port_priv *port_priv)
 {
 	struct adin1110_priv *priv = port_priv->priv;
 	u32 header_len = ADIN1110_RD_HEADER_LEN;
-	struct spi_transfer t;
+	struct spi_transfer t = {0};
 	u32 frame_size_no_fcs;
 	struct sk_buff *rxb;
 	u32 frame_size;
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index 4d4140b7c450..f3305c434c95 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -2170,7 +2170,7 @@ static void xgene_enet_shutdown(struct platform_device *pdev)
 static struct platform_driver xgene_enet_driver = {
 	.driver = {
 		   .name = "xgene-enet",
-		   .of_match_table = of_match_ptr(xgene_enet_of_match),
+		   .of_match_table = xgene_enet_of_match,
 		   .acpi_match_table = ACPI_PTR(xgene_enet_acpi_match),
 	},
 	.probe = xgene_enet_probe,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 8d719f82854a..76de55306c4d 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -3816,6 +3816,8 @@ int t4_load_phy_fw(struct adapter *adap, int win,
 		 FW_PARAMS_PARAM_Z_V(FW_PARAMS_PARAM_DEV_PHYFW_DOWNLOAD));
 	ret = t4_set_params_timeout(adap, adap->mbox, adap->pf, 0, 1,
 				    &param, &val, 30000);
+	if (ret)
+		return ret;
 
 	/* If we have version number support, then check to see that the new
 	 * firmware got loaded properly.
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 6e310a539467..55bb0b5310d5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -580,7 +580,6 @@ struct i40e_pf {
 #define I40E_FLAG_DISABLE_FW_LLDP		BIT(24)
 #define I40E_FLAG_RS_FEC			BIT(25)
 #define I40E_FLAG_BASE_R_FEC			BIT(26)
-#define I40E_FLAG_VF_VLAN_PRUNING		BIT(27)
 /* TOTAL_PORT_SHUTDOWN
  * Allows to physically disable the link on the NIC's port.
  * If enabled, (after link down request from the OS)
@@ -603,6 +602,7 @@ struct i40e_pf {
  *   in abilities field of i40e_aq_set_phy_config structure
  */
 #define I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED	BIT(27)
+#define I40E_FLAG_VF_VLAN_PRUNING		BIT(28)
 
 	struct i40e_client_instance *cinst;
 	bool stat_offsets_loaded;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 0b3a27f118fb..b047c587629b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2544,7 +2544,14 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget,
 			rx_buffer = i40e_rx_bi(rx_ring, ntp);
 			i40e_inc_ntp(rx_ring);
 			i40e_reuse_rx_page(rx_ring, rx_buffer);
-			cleaned_count++;
+			/* Update ntc and bump cleaned count if not in the
+			 * middle of mb packet.
+			 */
+			if (rx_ring->next_to_clean == ntp) {
+				rx_ring->next_to_clean =
+					rx_ring->next_to_process;
+				cleaned_count++;
+			}
 			continue;
 		}
 
@@ -2847,7 +2854,7 @@ tx_only:
 		return budget;
 	}
 
-	if (vsi->back->flags & I40E_TXR_FLAGS_WB_ON_ITR)
+	if (q_vector->tx.ring[0].flags & I40E_TXR_FLAGS_WB_ON_ITR)
 		q_vector->arm_wb_state = false;
 
 	/* Exit the polling mode, but don't re-enable interrupts if stack might
diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
index 37f41c8a682f..7d991e4d9b89 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
@@ -437,12 +437,12 @@ int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget)
 	unsigned int total_rx_bytes = 0, total_rx_packets = 0;
 	u16 next_to_process = rx_ring->next_to_process;
 	u16 next_to_clean = rx_ring->next_to_clean;
-	u16 count_mask = rx_ring->count - 1;
 	unsigned int xdp_res, xdp_xmit = 0;
 	struct xdp_buff *first = NULL;
+	u32 count = rx_ring->count;
 	struct bpf_prog *xdp_prog;
+	u32 entries_to_alloc;
 	bool failure = false;
-	u16 cleaned_count;
 
 	if (next_to_process != next_to_clean)
 		first = *i40e_rx_bi(rx_ring, next_to_clean);
@@ -475,7 +475,8 @@ int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget)
 						      qword);
 			bi = *i40e_rx_bi(rx_ring, next_to_process);
 			xsk_buff_free(bi);
-			next_to_process = (next_to_process + 1) & count_mask;
+			if (++next_to_process == count)
+				next_to_process = 0;
 			continue;
 		}
 
@@ -493,7 +494,8 @@ int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget)
 		else if (i40e_add_xsk_frag(rx_ring, first, bi, size))
 			break;
 
-		next_to_process = (next_to_process + 1) & count_mask;
+		if (++next_to_process == count)
+			next_to_process = 0;
 
 		if (i40e_is_non_eop(rx_ring, rx_desc))
 			continue;
@@ -513,10 +515,10 @@ int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget)
 
 	rx_ring->next_to_clean = next_to_clean;
 	rx_ring->next_to_process = next_to_process;
-	cleaned_count = (next_to_clean - rx_ring->next_to_use - 1) & count_mask;
 
-	if (cleaned_count >= I40E_RX_BUFFER_WRITE)
-		failure |= !i40e_alloc_rx_buffers_zc(rx_ring, cleaned_count);
+	entries_to_alloc = I40E_DESC_UNUSED(rx_ring);
+	if (entries_to_alloc >= I40E_RX_BUFFER_WRITE)
+		failure |= !i40e_alloc_rx_buffers_zc(rx_ring, entries_to_alloc);
 
 	i40e_finalize_xdp_rx(rx_ring, xdp_xmit);
 	i40e_update_rx_stats(rx_ring, total_rx_bytes, total_rx_packets);
@@ -752,14 +754,16 @@ int i40e_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags)
 
 void i40e_xsk_clean_rx_ring(struct i40e_ring *rx_ring)
 {
-	u16 count_mask = rx_ring->count - 1;
 	u16 ntc = rx_ring->next_to_clean;
 	u16 ntu = rx_ring->next_to_use;
 
-	for ( ; ntc != ntu; ntc = (ntc + 1)  & count_mask) {
+	while (ntc != ntu) {
 		struct xdp_buff *rx_bi = *i40e_rx_bi(rx_ring, ntc);
 
 		xsk_buff_free(rx_bi);
+		ntc++;
+		if (ntc >= rx_ring->count)
+			ntc = 0;
 	}
 }
 
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 6a2e6d64bc3a..b3434dbc90d6 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -1437,9 +1437,9 @@ void iavf_down(struct iavf_adapter *adapter)
 			adapter->aq_required |= IAVF_FLAG_AQ_DEL_FDIR_FILTER;
 		if (!list_empty(&adapter->adv_rss_list_head))
 			adapter->aq_required |= IAVF_FLAG_AQ_DEL_ADV_RSS_CFG;
-		adapter->aq_required |= IAVF_FLAG_AQ_DISABLE_QUEUES;
 	}
 
+	adapter->aq_required |= IAVF_FLAG_AQ_DISABLE_QUEUES;
 	mod_delayed_work(adapter->wq, &adapter->watchdog_task, 0);
 }
 
@@ -4982,8 +4982,6 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	INIT_WORK(&adapter->finish_config, iavf_finish_config);
 	INIT_DELAYED_WORK(&adapter->watchdog_task, iavf_watchdog_task);
 	INIT_DELAYED_WORK(&adapter->client_task, iavf_client_task);
-	queue_delayed_work(adapter->wq, &adapter->watchdog_task,
-			   msecs_to_jiffies(5 * (pdev->devfn & 0x07)));
 
 	/* Setup the wait queue for indicating transition to down status */
 	init_waitqueue_head(&adapter->down_waitqueue);
@@ -4994,6 +4992,9 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* Setup the wait queue for indicating virtchannel events */
 	init_waitqueue_head(&adapter->vc_waitqueue);
 
+	queue_delayed_work(adapter->wq, &adapter->watchdog_task,
+			   msecs_to_jiffies(5 * (pdev->devfn & 0x07)));
+	/* Initialization goes on in the work. Do not add more of it below. */
 	return 0;
 
 err_ioremap:
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 319ed601eaa1..4ee849985e2b 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2978,11 +2978,15 @@ static int igb_add_ethtool_nfc_entry(struct igb_adapter *adapter,
 	if (err)
 		goto err_out_w_lock;
 
-	igb_update_ethtool_nfc_entry(adapter, input, input->sw_idx);
+	err = igb_update_ethtool_nfc_entry(adapter, input, input->sw_idx);
+	if (err)
+		goto err_out_input_filter;
 
 	spin_unlock(&adapter->nfc_lock);
 	return 0;
 
+err_out_input_filter:
+	igb_erase_filter(adapter, input);
 err_out_w_lock:
 	spin_unlock(&adapter->nfc_lock);
 err_out:
diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c
index 7ab6dd58e400..dd8a9d27a167 100644
--- a/drivers/net/ethernet/intel/igc/igc_ethtool.c
+++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
@@ -1817,7 +1817,7 @@ igc_ethtool_set_link_ksettings(struct net_device *netdev,
 	struct igc_adapter *adapter = netdev_priv(netdev);
 	struct net_device *dev = adapter->netdev;
 	struct igc_hw *hw = &adapter->hw;
-	u32 advertising;
+	u16 advertised = 0;
 
 	/* When adapter in resetting mode, autoneg/speed/duplex
 	 * cannot be changed
@@ -1842,18 +1842,33 @@ igc_ethtool_set_link_ksettings(struct net_device *netdev,
 	while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
 		usleep_range(1000, 2000);
 
-	ethtool_convert_link_mode_to_legacy_u32(&advertising,
-						cmd->link_modes.advertising);
-	/* Converting to legacy u32 drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT.
-	 * We have to check this and convert it to ADVERTISE_2500_FULL
-	 * (aka ETHTOOL_LINK_MODE_2500baseX_Full_BIT) explicitly.
-	 */
-	if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full))
-		advertising |= ADVERTISE_2500_FULL;
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  2500baseT_Full))
+		advertised |= ADVERTISE_2500_FULL;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  1000baseT_Full))
+		advertised |= ADVERTISE_1000_FULL;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  100baseT_Full))
+		advertised |= ADVERTISE_100_FULL;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  100baseT_Half))
+		advertised |= ADVERTISE_100_HALF;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  10baseT_Full))
+		advertised |= ADVERTISE_10_FULL;
+
+	if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+						  10baseT_Half))
+		advertised |= ADVERTISE_10_HALF;
 
 	if (cmd->base.autoneg == AUTONEG_ENABLE) {
 		hw->mac.autoneg = 1;
-		hw->phy.autoneg_advertised = advertising;
+		hw->phy.autoneg_advertised = advertised;
 		if (adapter->fc_autoneg)
 			hw->fc.requested_mode = igc_fc_default;
 	} else {
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 6351a2dc13bc..361b90007148 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -4364,7 +4364,7 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
 		unsigned int entry = dirty_tx % NUM_TX_DESC;
 		u32 status;
 
-		status = le32_to_cpu(tp->TxDescArray[entry].opts1);
+		status = le32_to_cpu(READ_ONCE(tp->TxDescArray[entry].opts1));
 		if (status & DescOwn)
 			break;
 
@@ -4394,7 +4394,7 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
 		 * If skb is NULL then we come here again once a tx irq is
 		 * triggered after the last fragment is marked transmitted.
 		 */
-		if (tp->cur_tx != dirty_tx && skb)
+		if (READ_ONCE(tp->cur_tx) != dirty_tx && skb)
 			rtl8169_doorbell(tp);
 	}
 }
@@ -4427,7 +4427,7 @@ static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, int budget
 		dma_addr_t addr;
 		u32 status;
 
-		status = le32_to_cpu(desc->opts1);
+		status = le32_to_cpu(READ_ONCE(desc->opts1));
 		if (status & DescOwn)
 			break;
 
diff --git a/drivers/net/ethernet/sfc/tc.c b/drivers/net/ethernet/sfc/tc.c
index 834f000ba1c4..30ebef88248d 100644
--- a/drivers/net/ethernet/sfc/tc.c
+++ b/drivers/net/ethernet/sfc/tc.c
@@ -629,14 +629,14 @@ static int efx_tc_flower_record_encap_match(struct efx_nic *efx,
 			}
 			if (child_ip_tos_mask != old->child_ip_tos_mask) {
 				NL_SET_ERR_MSG_FMT_MOD(extack,
-						       "Pseudo encap match for TOS mask %#04x conflicts with existing pseudo(MASK) entry for TOS mask %#04x",
+						       "Pseudo encap match for TOS mask %#04x conflicts with existing mask %#04x",
 						       child_ip_tos_mask,
 						       old->child_ip_tos_mask);
 				return -EEXIST;
 			}
 			if (child_udp_sport_mask != old->child_udp_sport_mask) {
 				NL_SET_ERR_MSG_FMT_MOD(extack,
-						       "Pseudo encap match for UDP src port mask %#x conflicts with existing pseudo(MASK) entry for mask %#x",
+						       "Pseudo encap match for UDP src port mask %#x conflicts with existing mask %#x",
 						       child_udp_sport_mask,
 						       old->child_udp_sport_mask);
 				return -EEXIST;
@@ -1081,7 +1081,7 @@ static int efx_tc_pedit_add(struct efx_nic *efx, struct efx_tc_action_set *act,
 			/* check that we do not decrement ttl twice */
 			if (!efx_tc_flower_action_order_ok(act,
 							   EFX_TC_AO_DEC_TTL)) {
-				NL_SET_ERR_MSG_MOD(extack, "Unsupported: multiple dec ttl");
+				NL_SET_ERR_MSG_MOD(extack, "multiple dec ttl are not supported");
 				return -EOPNOTSUPP;
 			}
 			act->do_ttl_dec = 1;
@@ -1106,7 +1106,7 @@ static int efx_tc_pedit_add(struct efx_nic *efx, struct efx_tc_action_set *act,
 			/* check that we do not decrement hoplimit twice */
 			if (!efx_tc_flower_action_order_ok(act,
 							   EFX_TC_AO_DEC_TTL)) {
-				NL_SET_ERR_MSG_MOD(extack, "Unsupported: multiple dec ttl");
+				NL_SET_ERR_MSG_MOD(extack, "multiple dec ttl are not supported");
 				return -EOPNOTSUPP;
 			}
 			act->do_ttl_dec = 1;
@@ -1120,7 +1120,7 @@ static int efx_tc_pedit_add(struct efx_nic *efx, struct efx_tc_action_set *act,
 	}
 
 	NL_SET_ERR_MSG_FMT_MOD(extack,
-			       "Unsupported: ttl add action type %x %x %x/%x",
+			       "ttl add action type %x %x %x/%x is not supported",
 			       fa->mangle.htype, fa->mangle.offset,
 			       fa->mangle.val, fa->mangle.mask);
 	return -EOPNOTSUPP;
@@ -1164,7 +1164,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 		case 0:
 			if (fa->mangle.mask) {
 				NL_SET_ERR_MSG_FMT_MOD(extack,
-						       "Unsupported: mask (%#x) of eth.dst32 mangle",
+						       "mask (%#x) of eth.dst32 mangle is not supported",
 						       fa->mangle.mask);
 				return -EOPNOTSUPP;
 			}
@@ -1184,7 +1184,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 				mung->dst_mac_16 = 1;
 			} else {
 				NL_SET_ERR_MSG_FMT_MOD(extack,
-						       "Unsupported: mask (%#x) of eth+4 mangle is not high or low 16b",
+						       "mask (%#x) of eth+4 mangle is not high or low 16b",
 						       fa->mangle.mask);
 				return -EOPNOTSUPP;
 			}
@@ -1192,7 +1192,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 		case 8:
 			if (fa->mangle.mask) {
 				NL_SET_ERR_MSG_FMT_MOD(extack,
-						       "Unsupported: mask (%#x) of eth.src32 mangle",
+						       "mask (%#x) of eth.src32 mangle is not supported",
 						       fa->mangle.mask);
 				return -EOPNOTSUPP;
 			}
@@ -1201,7 +1201,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			mung->src_mac_32 = 1;
 			return efx_tc_complete_mac_mangle(efx, act, mung, extack);
 		default:
-			NL_SET_ERR_MSG_FMT_MOD(extack, "Unsupported: mangle eth+%u %x/%x",
+			NL_SET_ERR_MSG_FMT_MOD(extack, "mangle eth+%u %x/%x is not supported",
 					       fa->mangle.offset, fa->mangle.val, fa->mangle.mask);
 			return -EOPNOTSUPP;
 		}
@@ -1217,7 +1217,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			/* check that pedit applies to ttl only */
 			if (fa->mangle.mask != ~EFX_TC_HDR_TYPE_TTL_MASK) {
 				NL_SET_ERR_MSG_FMT_MOD(extack,
-						       "Unsupported: mask (%#x) out of range, only support mangle action on ipv4.ttl",
+						       "mask (%#x) out of range, only support mangle action on ipv4.ttl",
 						       fa->mangle.mask);
 				return -EOPNOTSUPP;
 			}
@@ -1227,7 +1227,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			 */
 			if (match->mask.ip_ttl != U8_MAX) {
 				NL_SET_ERR_MSG_FMT_MOD(extack,
-						       "Unsupported: only support mangle ipv4.ttl when we have an exact match on ttl, mask used for match (%#x)",
+						       "only support mangle ttl when we have an exact match, current mask (%#x)",
 						       match->mask.ip_ttl);
 				return -EOPNOTSUPP;
 			}
@@ -1237,7 +1237,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			 */
 			if (match->value.ip_ttl == 0) {
 				NL_SET_ERR_MSG_MOD(extack,
-						   "Unsupported: we cannot decrement ttl past 0");
+						   "decrement ttl past 0 is not supported");
 				return -EOPNOTSUPP;
 			}
 
@@ -1245,7 +1245,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			if (!efx_tc_flower_action_order_ok(act,
 							   EFX_TC_AO_DEC_TTL)) {
 				NL_SET_ERR_MSG_MOD(extack,
-						   "Unsupported: multiple dec ttl");
+						   "multiple dec ttl is not supported");
 				return -EOPNOTSUPP;
 			}
 
@@ -1259,7 +1259,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			fallthrough;
 		default:
 			NL_SET_ERR_MSG_FMT_MOD(extack,
-					       "Unsupported: only support mangle on the ttl field (offset is %u)",
+					       "only support mangle on the ttl field (offset is %u)",
 					       fa->mangle.offset);
 			return -EOPNOTSUPP;
 		}
@@ -1275,7 +1275,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			/* check that pedit applies to ttl only */
 			if (fa->mangle.mask != EFX_TC_HDR_TYPE_HLIMIT_MASK) {
 				NL_SET_ERR_MSG_FMT_MOD(extack,
-						       "Unsupported: mask (%#x) out of range, only support mangle action on ipv6.hop_limit",
+						       "mask (%#x) out of range, only support mangle action on ipv6.hop_limit",
 						       fa->mangle.mask);
 
 				return -EOPNOTSUPP;
@@ -1286,7 +1286,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			 */
 			if (match->mask.ip_ttl != U8_MAX) {
 				NL_SET_ERR_MSG_FMT_MOD(extack,
-						       "Unsupported: only support mangle ipv6.hop_limit when we have an exact match on ttl, mask used for match (%#x)",
+						       "only support hop_limit when we have an exact match, current mask (%#x)",
 						       match->mask.ip_ttl);
 				return -EOPNOTSUPP;
 			}
@@ -1296,7 +1296,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			 */
 			if (match->value.ip_ttl == 0) {
 				NL_SET_ERR_MSG_MOD(extack,
-						   "Unsupported: we cannot decrement hop_limit past 0");
+						   "decrementing hop_limit past 0 is not supported");
 				return -EOPNOTSUPP;
 			}
 
@@ -1304,7 +1304,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			if (!efx_tc_flower_action_order_ok(act,
 							   EFX_TC_AO_DEC_TTL)) {
 				NL_SET_ERR_MSG_MOD(extack,
-						   "Unsupported: multiple dec ttl");
+						   "multiple dec ttl is not supported");
 				return -EOPNOTSUPP;
 			}
 
@@ -1318,7 +1318,7 @@ static int efx_tc_mangle(struct efx_nic *efx, struct efx_tc_action_set *act,
 			fallthrough;
 		default:
 			NL_SET_ERR_MSG_FMT_MOD(extack,
-					       "Unsupported: only support mangle on the hop_limit field");
+					       "only support mangle on the hop_limit field");
 			return -EOPNOTSUPP;
 		}
 	default:
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index ed1a5a31a491..5801f4d50f95 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1197,6 +1197,17 @@ static int stmmac_init_phy(struct net_device *dev)
 	return ret;
 }
 
+static void stmmac_set_half_duplex(struct stmmac_priv *priv)
+{
+	/* Half-Duplex can only work with single tx queue */
+	if (priv->plat->tx_queues_to_use > 1)
+		priv->phylink_config.mac_capabilities &=
+			~(MAC_10HD | MAC_100HD | MAC_1000HD);
+	else
+		priv->phylink_config.mac_capabilities |=
+			(MAC_10HD | MAC_100HD | MAC_1000HD);
+}
+
 static int stmmac_phy_setup(struct stmmac_priv *priv)
 {
 	struct stmmac_mdio_bus_data *mdio_bus_data;
@@ -1228,10 +1239,7 @@ static int stmmac_phy_setup(struct stmmac_priv *priv)
 						MAC_10FD | MAC_100FD |
 						MAC_1000FD;
 
-	/* Half-Duplex can only work with single queue */
-	if (priv->plat->tx_queues_to_use <= 1)
-		priv->phylink_config.mac_capabilities |= MAC_10HD | MAC_100HD |
-							 MAC_1000HD;
+	stmmac_set_half_duplex(priv);
 
 	/* Get the MAC specific capabilities */
 	stmmac_mac_phylink_get_caps(priv);
@@ -7172,6 +7180,7 @@ int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt)
 			priv->rss.table[i] = ethtool_rxfh_indir_default(i,
 									rx_cnt);
 
+	stmmac_set_half_duplex(priv);
 	stmmac_napi_add(dev);
 
 	if (netif_running(dev))
diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
index dc14a66583ff..44488c153ea2 100644
--- a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
+++ b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
@@ -1217,7 +1217,7 @@ static int gelic_wl_set_encodeext(struct net_device *netdev,
 		key_index = wl->current_key;
 
 	if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
-		/* reques to change default key index */
+		/* request to change default key index */
 		pr_debug("%s: request to change default key to %d\n",
 			 __func__, key_index);
 		wl->current_key = key_index;
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 144ec626230d..b22596b18ee8 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -872,8 +872,9 @@ static int gtp_build_skb_ip4(struct sk_buff *skb, struct net_device *dev,
 
 	skb_dst_update_pmtu_no_confirm(skb, mtu);
 
-	if (!skb_is_gso(skb) && (iph->frag_off & htons(IP_DF)) &&
-	    mtu < ntohs(iph->tot_len)) {
+	if (iph->frag_off & htons(IP_DF) &&
+	    ((!skb_is_gso(skb) && skb->len > mtu) ||
+	     (skb_is_gso(skb) && !skb_gso_validate_network_len(skb, mtu)))) {
 		netdev_dbg(dev, "packet too big, fragmentation needed\n");
 		icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
 			      htonl(mtu));
diff --git a/drivers/net/ieee802154/adf7242.c b/drivers/net/ieee802154/adf7242.c
index a03490ba2e5b..cc7ddc40020f 100644
--- a/drivers/net/ieee802154/adf7242.c
+++ b/drivers/net/ieee802154/adf7242.c
@@ -1162,9 +1162,10 @@ static int adf7242_stats_show(struct seq_file *file, void *offset)
 
 static void adf7242_debugfs_init(struct adf7242_local *lp)
 {
-	char debugfs_dir_name[DNAME_INLINE_LEN + 1] = "adf7242-";
+	char debugfs_dir_name[DNAME_INLINE_LEN + 1];
 
-	strncat(debugfs_dir_name, dev_name(&lp->spi->dev), DNAME_INLINE_LEN);
+	snprintf(debugfs_dir_name, sizeof(debugfs_dir_name),
+		 "adf7242-%s", dev_name(&lp->spi->dev));
 
 	lp->debugfs_root = debugfs_create_dir(debugfs_dir_name, NULL);
 
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 0c13d9950cd8..afb20c0ed688 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -764,7 +764,7 @@ enum rtl_register_content {
 
 /* rtl8152 flags */
 enum rtl8152_flags {
-	RTL8152_UNPLUG = 0,
+	RTL8152_INACCESSIBLE = 0,
 	RTL8152_SET_RX_MODE,
 	WORK_ENABLE,
 	RTL8152_LINK_CHG,
@@ -773,6 +773,9 @@ enum rtl8152_flags {
 	SCHEDULE_TASKLET,
 	GREEN_ETHERNET,
 	RX_EPROTO,
+	IN_PRE_RESET,
+	PROBED_WITH_NO_ERRORS,
+	PROBE_SHOULD_RETRY,
 };
 
 #define DEVICE_ID_LENOVO_USB_C_TRAVEL_HUB		0x721e
@@ -953,6 +956,8 @@ struct r8152 {
 	u8 version;
 	u8 duplex;
 	u8 autoneg;
+
+	unsigned int reg_access_reset_count;
 };
 
 /**
@@ -1200,6 +1205,96 @@ static unsigned int agg_buf_sz = 16384;
 
 #define RTL_LIMITED_TSO_SIZE	(size_to_mtu(agg_buf_sz) - sizeof(struct tx_desc))
 
+/* If register access fails then we block access and issue a reset. If this
+ * happens too many times in a row without a successful access then we stop
+ * trying to reset and just leave access blocked.
+ */
+#define REGISTER_ACCESS_MAX_RESETS	3
+
+static void rtl_set_inaccessible(struct r8152 *tp)
+{
+	set_bit(RTL8152_INACCESSIBLE, &tp->flags);
+	smp_mb__after_atomic();
+}
+
+static void rtl_set_accessible(struct r8152 *tp)
+{
+	clear_bit(RTL8152_INACCESSIBLE, &tp->flags);
+	smp_mb__after_atomic();
+}
+
+static
+int r8152_control_msg(struct r8152 *tp, unsigned int pipe, __u8 request,
+		      __u8 requesttype, __u16 value, __u16 index, void *data,
+		      __u16 size, const char *msg_tag)
+{
+	struct usb_device *udev = tp->udev;
+	int ret;
+
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
+		return -ENODEV;
+
+	ret = usb_control_msg(udev, pipe, request, requesttype,
+			      value, index, data, size,
+			      USB_CTRL_GET_TIMEOUT);
+
+	/* No need to issue a reset to report an error if the USB device got
+	 * unplugged; just return immediately.
+	 */
+	if (ret == -ENODEV)
+		return ret;
+
+	/* If the write was successful then we're done */
+	if (ret >= 0) {
+		tp->reg_access_reset_count = 0;
+		return ret;
+	}
+
+	dev_err(&udev->dev,
+		"Failed to %s %d bytes at %#06x/%#06x (%d)\n",
+		msg_tag, size, value, index, ret);
+
+	/* Block all future register access until we reset. Much of the code
+	 * in the driver doesn't check for errors. Notably, many parts of the
+	 * driver do a read/modify/write of a register value without
+	 * confirming that the read succeeded. Writing back modified garbage
+	 * like this can fully wedge the adapter, requiring a power cycle.
+	 */
+	rtl_set_inaccessible(tp);
+
+	/* If probe hasn't yet finished, then we'll request a retry of the
+	 * whole probe routine if we get any control transfer errors. We
+	 * never have to clear this bit since we free/reallocate the whole "tp"
+	 * structure if we retry probe.
+	 */
+	if (!test_bit(PROBED_WITH_NO_ERRORS, &tp->flags)) {
+		set_bit(PROBE_SHOULD_RETRY, &tp->flags);
+		return ret;
+	}
+
+	/* Failing to access registers in pre-reset is not surprising since we
+	 * wouldn't be resetting if things were behaving normally. The register
+	 * access we do in pre-reset isn't truly mandatory--we're just reusing
+	 * the disable() function and trying to be nice by powering the
+	 * adapter down before resetting it. Thus, if we're in pre-reset,
+	 * we'll return right away and not try to queue up yet another reset.
+	 * We know the post-reset is already coming.
+	 */
+	if (test_bit(IN_PRE_RESET, &tp->flags))
+		return ret;
+
+	if (tp->reg_access_reset_count < REGISTER_ACCESS_MAX_RESETS) {
+		usb_queue_reset_device(tp->intf);
+		tp->reg_access_reset_count++;
+	} else if (tp->reg_access_reset_count == REGISTER_ACCESS_MAX_RESETS) {
+		dev_err(&udev->dev,
+			"Tried to reset %d times; giving up.\n",
+			REGISTER_ACCESS_MAX_RESETS);
+	}
+
+	return ret;
+}
+
 static
 int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
 {
@@ -1210,9 +1305,10 @@ int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
 	if (!tmp)
 		return -ENOMEM;
 
-	ret = usb_control_msg(tp->udev, tp->pipe_ctrl_in,
-			      RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
-			      value, index, tmp, size, 500);
+	ret = r8152_control_msg(tp, tp->pipe_ctrl_in,
+				RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
+				value, index, tmp, size, "read");
+
 	if (ret < 0)
 		memset(data, 0xff, size);
 	else
@@ -1233,9 +1329,9 @@ int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
 	if (!tmp)
 		return -ENOMEM;
 
-	ret = usb_control_msg(tp->udev, tp->pipe_ctrl_out,
-			      RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
-			      value, index, tmp, size, 500);
+	ret = r8152_control_msg(tp, tp->pipe_ctrl_out,
+				RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
+				value, index, tmp, size, "write");
 
 	kfree(tmp);
 
@@ -1244,10 +1340,8 @@ int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
 
 static void rtl_set_unplug(struct r8152 *tp)
 {
-	if (tp->udev->state == USB_STATE_NOTATTACHED) {
-		set_bit(RTL8152_UNPLUG, &tp->flags);
-		smp_mb__after_atomic();
-	}
+	if (tp->udev->state == USB_STATE_NOTATTACHED)
+		rtl_set_inaccessible(tp);
 }
 
 static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
@@ -1256,7 +1350,7 @@ static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
 	u16 limit = 64;
 	int ret = 0;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return -ENODEV;
 
 	/* both size and indix must be 4 bytes align */
@@ -1300,7 +1394,7 @@ static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
 	u16 byteen_start, byteen_end, byen;
 	u16 limit = 512;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return -ENODEV;
 
 	/* both size and indix must be 4 bytes align */
@@ -1537,7 +1631,7 @@ static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
 	struct r8152 *tp = netdev_priv(netdev);
 	int ret;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return -ENODEV;
 
 	if (phy_id != R8152_PHY_ID)
@@ -1553,7 +1647,7 @@ void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
 {
 	struct r8152 *tp = netdev_priv(netdev);
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	if (phy_id != R8152_PHY_ID)
@@ -1758,7 +1852,7 @@ static void read_bulk_callback(struct urb *urb)
 	if (!tp)
 		return;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	if (!test_bit(WORK_ENABLE, &tp->flags))
@@ -1850,7 +1944,7 @@ static void write_bulk_callback(struct urb *urb)
 	if (!test_bit(WORK_ENABLE, &tp->flags))
 		return;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	if (!skb_queue_empty(&tp->tx_queue))
@@ -1871,7 +1965,7 @@ static void intr_callback(struct urb *urb)
 	if (!test_bit(WORK_ENABLE, &tp->flags))
 		return;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	switch (status) {
@@ -2615,7 +2709,7 @@ static void bottom_half(struct tasklet_struct *t)
 {
 	struct r8152 *tp = from_tasklet(tp, t, tx_tl);
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	if (!test_bit(WORK_ENABLE, &tp->flags))
@@ -2658,7 +2752,7 @@ int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags)
 	int ret;
 
 	/* The rx would be stopped, so skip submitting */
-	if (test_bit(RTL8152_UNPLUG, &tp->flags) ||
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags) ||
 	    !test_bit(WORK_ENABLE, &tp->flags) || !netif_carrier_ok(tp->netdev))
 		return 0;
 
@@ -3058,7 +3152,7 @@ static int rtl_enable(struct r8152 *tp)
 
 static int rtl8152_enable(struct r8152 *tp)
 {
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return -ENODEV;
 
 	set_tx_qlen(tp);
@@ -3145,7 +3239,7 @@ static int rtl8153_enable(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return -ENODEV;
 
 	set_tx_qlen(tp);
@@ -3177,7 +3271,7 @@ static void rtl_disable(struct r8152 *tp)
 	u32 ocp_data;
 	int i;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) {
 		rtl_drop_queued_tx(tp);
 		return;
 	}
@@ -3631,7 +3725,7 @@ static u16 r8153_phy_status(struct r8152 *tp, u16 desired)
 		}
 
 		msleep(20);
-		if (test_bit(RTL8152_UNPLUG, &tp->flags))
+		if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 			break;
 	}
 
@@ -3663,6 +3757,8 @@ static void r8153b_ups_en(struct r8152 *tp, bool enable)
 			int i;
 
 			for (i = 0; i < 500; i++) {
+				if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
+					return;
 				if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
 				    AUTOLOAD_DONE)
 					break;
@@ -3703,6 +3799,8 @@ static void r8153c_ups_en(struct r8152 *tp, bool enable)
 			int i;
 
 			for (i = 0; i < 500; i++) {
+				if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
+					return;
 				if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
 				    AUTOLOAD_DONE)
 					break;
@@ -4046,6 +4144,9 @@ static int rtl_phy_patch_request(struct r8152 *tp, bool request, bool wait)
 	for (i = 0; wait && i < 5000; i++) {
 		u32 ocp_data;
 
+		if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
+			return -ENODEV;
+
 		usleep_range(1000, 2000);
 		ocp_data = ocp_reg_read(tp, OCP_PHY_PATCH_STAT);
 		if ((ocp_data & PATCH_READY) ^ check)
@@ -6002,7 +6103,7 @@ static int rtl8156_enable(struct r8152 *tp)
 	u32 ocp_data;
 	u16 speed;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return -ENODEV;
 
 	r8156_fc_parameter(tp);
@@ -6060,7 +6161,7 @@ static int rtl8156b_enable(struct r8152 *tp)
 	u32 ocp_data;
 	u16 speed;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return -ENODEV;
 
 	set_tx_qlen(tp);
@@ -6246,7 +6347,7 @@ out:
 
 static void rtl8152_up(struct r8152 *tp)
 {
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8152_aldps_en(tp, false);
@@ -6256,7 +6357,7 @@ static void rtl8152_up(struct r8152 *tp)
 
 static void rtl8152_down(struct r8152 *tp)
 {
-	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) {
 		rtl_drop_queued_tx(tp);
 		return;
 	}
@@ -6271,7 +6372,7 @@ static void rtl8153_up(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8153_u1u2en(tp, false);
@@ -6311,7 +6412,7 @@ static void rtl8153_down(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) {
 		rtl_drop_queued_tx(tp);
 		return;
 	}
@@ -6332,7 +6433,7 @@ static void rtl8153b_up(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8153b_u1u2en(tp, false);
@@ -6356,7 +6457,7 @@ static void rtl8153b_down(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) {
 		rtl_drop_queued_tx(tp);
 		return;
 	}
@@ -6393,7 +6494,7 @@ static void rtl8153c_up(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8153b_u1u2en(tp, false);
@@ -6474,7 +6575,7 @@ static void rtl8156_up(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8153b_u1u2en(tp, false);
@@ -6547,7 +6648,7 @@ static void rtl8156_down(struct r8152 *tp)
 {
 	u32 ocp_data;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) {
 		rtl_drop_queued_tx(tp);
 		return;
 	}
@@ -6685,7 +6786,7 @@ static void rtl_work_func_t(struct work_struct *work)
 	/* If the device is unplugged or !netif_running(), the workqueue
 	 * doesn't need to wake the device, and could return directly.
 	 */
-	if (test_bit(RTL8152_UNPLUG, &tp->flags) || !netif_running(tp->netdev))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags) || !netif_running(tp->netdev))
 		return;
 
 	if (usb_autopm_get_interface(tp->intf) < 0)
@@ -6724,7 +6825,7 @@ static void rtl_hw_phy_work_func_t(struct work_struct *work)
 {
 	struct r8152 *tp = container_of(work, struct r8152, hw_phy_work.work);
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	if (usb_autopm_get_interface(tp->intf) < 0)
@@ -6851,7 +6952,7 @@ static int rtl8152_close(struct net_device *netdev)
 	netif_stop_queue(netdev);
 
 	res = usb_autopm_get_interface(tp->intf);
-	if (res < 0 || test_bit(RTL8152_UNPLUG, &tp->flags)) {
+	if (res < 0 || test_bit(RTL8152_INACCESSIBLE, &tp->flags)) {
 		rtl_drop_queued_tx(tp);
 		rtl_stop_rx(tp);
 	} else {
@@ -6884,7 +6985,7 @@ static void r8152b_init(struct r8152 *tp)
 	u32 ocp_data;
 	u16 data;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	data = r8152_mdio_read(tp, MII_BMCR);
@@ -6928,7 +7029,7 @@ static void r8153_init(struct r8152 *tp)
 	u16 data;
 	int i;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8153_u1u2en(tp, false);
@@ -6939,7 +7040,7 @@ static void r8153_init(struct r8152 *tp)
 			break;
 
 		msleep(20);
-		if (test_bit(RTL8152_UNPLUG, &tp->flags))
+		if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 			break;
 	}
 
@@ -7068,7 +7169,7 @@ static void r8153b_init(struct r8152 *tp)
 	u16 data;
 	int i;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8153b_u1u2en(tp, false);
@@ -7079,7 +7180,7 @@ static void r8153b_init(struct r8152 *tp)
 			break;
 
 		msleep(20);
-		if (test_bit(RTL8152_UNPLUG, &tp->flags))
+		if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 			break;
 	}
 
@@ -7150,7 +7251,7 @@ static void r8153c_init(struct r8152 *tp)
 	u16 data;
 	int i;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8153b_u1u2en(tp, false);
@@ -7170,7 +7271,7 @@ static void r8153c_init(struct r8152 *tp)
 			break;
 
 		msleep(20);
-		if (test_bit(RTL8152_UNPLUG, &tp->flags))
+		if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 			return;
 	}
 
@@ -7999,7 +8100,7 @@ static void r8156_init(struct r8152 *tp)
 	u16 data;
 	int i;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_ECM_OP);
@@ -8020,7 +8121,7 @@ static void r8156_init(struct r8152 *tp)
 			break;
 
 		msleep(20);
-		if (test_bit(RTL8152_UNPLUG, &tp->flags))
+		if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 			return;
 	}
 
@@ -8095,7 +8196,7 @@ static void r8156b_init(struct r8152 *tp)
 	u16 data;
 	int i;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_ECM_OP);
@@ -8129,7 +8230,7 @@ static void r8156b_init(struct r8152 *tp)
 			break;
 
 		msleep(20);
-		if (test_bit(RTL8152_UNPLUG, &tp->flags))
+		if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 			return;
 	}
 
@@ -8255,7 +8356,7 @@ static int rtl8152_pre_reset(struct usb_interface *intf)
 	struct r8152 *tp = usb_get_intfdata(intf);
 	struct net_device *netdev;
 
-	if (!tp)
+	if (!tp || !test_bit(PROBED_WITH_NO_ERRORS, &tp->flags))
 		return 0;
 
 	netdev = tp->netdev;
@@ -8270,7 +8371,9 @@ static int rtl8152_pre_reset(struct usb_interface *intf)
 	napi_disable(&tp->napi);
 	if (netif_carrier_ok(netdev)) {
 		mutex_lock(&tp->control);
+		set_bit(IN_PRE_RESET, &tp->flags);
 		tp->rtl_ops.disable(tp);
+		clear_bit(IN_PRE_RESET, &tp->flags);
 		mutex_unlock(&tp->control);
 	}
 
@@ -8283,9 +8386,11 @@ static int rtl8152_post_reset(struct usb_interface *intf)
 	struct net_device *netdev;
 	struct sockaddr sa;
 
-	if (!tp)
+	if (!tp || !test_bit(PROBED_WITH_NO_ERRORS, &tp->flags))
 		return 0;
 
+	rtl_set_accessible(tp);
+
 	/* reset the MAC address in case of policy change */
 	if (determine_ethernet_addr(tp, &sa) >= 0) {
 		rtnl_lock();
@@ -9158,7 +9263,7 @@ static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 	struct mii_ioctl_data *data = if_mii(rq);
 	int res;
 
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return -ENODEV;
 
 	res = usb_autopm_get_interface(tp->intf);
@@ -9260,7 +9365,7 @@ static const struct net_device_ops rtl8152_netdev_ops = {
 
 static void rtl8152_unload(struct r8152 *tp)
 {
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	if (tp->version != RTL_VER_01)
@@ -9269,7 +9374,7 @@ static void rtl8152_unload(struct r8152 *tp)
 
 static void rtl8153_unload(struct r8152 *tp)
 {
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8153_power_cut_en(tp, false);
@@ -9277,7 +9382,7 @@ static void rtl8153_unload(struct r8152 *tp)
 
 static void rtl8153b_unload(struct r8152 *tp)
 {
-	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
 		return;
 
 	r8153b_power_cut_en(tp, false);
@@ -9487,16 +9592,29 @@ static u8 __rtl_get_hw_ver(struct usb_device *udev)
 	__le32 *tmp;
 	u8 version;
 	int ret;
+	int i;
 
 	tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
 	if (!tmp)
 		return 0;
 
-	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
-			      RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
-			      PLA_TCR0, MCU_TYPE_PLA, tmp, sizeof(*tmp), 500);
-	if (ret > 0)
-		ocp_data = (__le32_to_cpu(*tmp) >> 16) & VERSION_MASK;
+	/* Retry up to 3 times in case there is a transitory error. We do this
+	 * since retrying a read of the version is always safe and this
+	 * function doesn't take advantage of r8152_control_msg().
+	 */
+	for (i = 0; i < 3; i++) {
+		ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+				      RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
+				      PLA_TCR0, MCU_TYPE_PLA, tmp, sizeof(*tmp),
+				      USB_CTRL_GET_TIMEOUT);
+		if (ret > 0) {
+			ocp_data = (__le32_to_cpu(*tmp) >> 16) & VERSION_MASK;
+			break;
+		}
+	}
+
+	if (i != 0 && ret > 0)
+		dev_warn(&udev->dev, "Needed %d retries to read version\n", i);
 
 	kfree(tmp);
 
@@ -9595,25 +9713,14 @@ static bool rtl8152_supports_lenovo_macpassthru(struct usb_device *udev)
 	return 0;
 }
 
-static int rtl8152_probe(struct usb_interface *intf,
-			 const struct usb_device_id *id)
+static int rtl8152_probe_once(struct usb_interface *intf,
+			      const struct usb_device_id *id, u8 version)
 {
 	struct usb_device *udev = interface_to_usbdev(intf);
 	struct r8152 *tp;
 	struct net_device *netdev;
-	u8 version;
 	int ret;
 
-	if (intf->cur_altsetting->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
-		return -ENODEV;
-
-	if (!rtl_check_vendor_ok(intf))
-		return -ENODEV;
-
-	version = rtl8152_get_version(intf);
-	if (version == RTL_VER_UNKNOWN)
-		return -ENODEV;
-
 	usb_reset_device(udev);
 	netdev = alloc_etherdev(sizeof(struct r8152));
 	if (!netdev) {
@@ -9776,18 +9883,68 @@ static int rtl8152_probe(struct usb_interface *intf,
 	else
 		device_set_wakeup_enable(&udev->dev, false);
 
+	/* If we saw a control transfer error while probing then we may
+	 * want to try probe() again. Consider this an error.
+	 */
+	if (test_bit(PROBE_SHOULD_RETRY, &tp->flags))
+		goto out2;
+
+	set_bit(PROBED_WITH_NO_ERRORS, &tp->flags);
 	netif_info(tp, probe, netdev, "%s\n", DRIVER_VERSION);
 
 	return 0;
 
+out2:
+	unregister_netdev(netdev);
+
 out1:
 	tasklet_kill(&tp->tx_tl);
+	cancel_delayed_work_sync(&tp->hw_phy_work);
+	if (tp->rtl_ops.unload)
+		tp->rtl_ops.unload(tp);
+	rtl8152_release_firmware(tp);
 	usb_set_intfdata(intf, NULL);
 out:
+	if (test_bit(PROBE_SHOULD_RETRY, &tp->flags))
+		ret = -EAGAIN;
+
 	free_netdev(netdev);
 	return ret;
 }
 
+#define RTL8152_PROBE_TRIES	3
+
+static int rtl8152_probe(struct usb_interface *intf,
+			 const struct usb_device_id *id)
+{
+	u8 version;
+	int ret;
+	int i;
+
+	if (intf->cur_altsetting->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
+		return -ENODEV;
+
+	if (!rtl_check_vendor_ok(intf))
+		return -ENODEV;
+
+	version = rtl8152_get_version(intf);
+	if (version == RTL_VER_UNKNOWN)
+		return -ENODEV;
+
+	for (i = 0; i < RTL8152_PROBE_TRIES; i++) {
+		ret = rtl8152_probe_once(intf, id, version);
+		if (ret != -EAGAIN)
+			break;
+	}
+	if (ret == -EAGAIN) {
+		dev_err(&intf->dev,
+			"r8152 failed probe after %d tries; giving up\n", i);
+		return -ENODEV;
+	}
+
+	return ret;
+}
+
 static void rtl8152_disconnect(struct usb_interface *intf)
 {
 	struct r8152 *tp = usb_get_intfdata(intf);
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 17da42fe605c..a530f20ee257 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -95,7 +95,9 @@ static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index,
 	ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN
 		 | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 		 0, index, &buf, 4);
-	if (ret < 0) {
+	if (ret < 4) {
+		ret = ret < 0 ? ret : -ENODATA;
+
 		if (ret != -ENODEV)
 			netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n",
 				    index, ret);