Merge tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking changes from Paolo Abeni:
 "Core:

   - Refactor the forward memory allocation to better cope with memory
     pressure with many open sockets, moving from a per socket cache to
     a per-CPU one

   - Replace rwlocks with RCU for better fairness in ping, raw sockets
     and IP multicast router.

   - Network-side support for IO uring zero-copy send.

   - A few skb drop reason improvements, including codegen the source
     file with string mapping instead of using macro magic.

   - Rename reference tracking helpers to a more consistent netdev_*
     schema.

   - Adapt u64_stats_t type to address load/store tearing issues.

   - Refine debug helper usage to reduce the log noise caused by bots.

  BPF:

   - Improve socket map performance, avoiding skb cloning on read
     operation.

   - Add support for 64 bits enum, to match types exposed by kernel.

   - Introduce support for sleepable uprobes program.

   - Introduce support for enum textual representation in libbpf.

   - New helpers to implement synproxy with eBPF/XDP.

   - Improve loop performances, inlining indirect calls when possible.

   - Removed all the deprecated libbpf APIs.

   - Implement new eBPF-based LSM flavor.

   - Add type match support, which allow accurate queries to the eBPF
     used types.

   - A few TCP congetsion control framework usability improvements.

   - Add new infrastructure to manipulate CT entries via eBPF programs.

   - Allow for livepatch (KLP) and BPF trampolines to attach to the same
     kernel function.

  Protocols:

   - Introduce per network namespace lookup tables for unix sockets,
     increasing scalability and reducing contention.

   - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support.

   - Add support to forciby close TIME_WAIT TCP sockets via user-space
     tools.

   - Significant performance improvement for the TLS 1.3 receive path,
     both for zero-copy and not-zero-copy.

   - Support for changing the initial MTPCP subflow priority/backup
     status

   - Introduce virtually contingus buffers for sockets over RDMA, to
     cope better with memory pressure.

   - Extend CAN ethtool support with timestamping capabilities

   - Refactor CAN build infrastructure to allow building only the needed
     features.

  Driver API:

   - Remove devlink mutex to allow parallel commands on multiple links.

   - Add support for pause stats in distributed switch.

   - Implement devlink helpers to query and flash line cards.

   - New helper for phy mode to register conversion.

  New hardware / drivers:

   - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro.

   - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch.

   - Ethernet DSA driver for the Microchip LAN937x switch.

   - Ethernet PHY driver for the Aquantia AQR113C EPHY.

   - CAN driver for the OBD-II ELM327 interface.

   - CAN driver for RZ/N1 SJA1000 CAN controller.

   - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device.

  Drivers:

   - Intel Ethernet NICs:
      - i40e: add support for vlan pruning
      - i40e: add support for XDP framented packets
      - ice: improved vlan offload support
      - ice: add support for PPPoE offload

   - Mellanox Ethernet (mlx5)
      - refactor packet steering offload for performance and scalability
      - extend support for TC offload
      - refactor devlink code to clean-up the locking schema
      - support stacked vlans for bridge offloads
      - use TLS objects pool to improve connection rate

   - Netronome Ethernet NICs (nfp):
      - extend support for IPv6 fields mangling offload
      - add support for vepa mode in HW bridge
      - better support for virtio data path acceleration (VDPA)
      - enable TSO by default

   - Microsoft vNIC driver (mana)
      - add support for XDP redirect

   - Others Ethernet drivers:
      - bonding: add per-port priority support
      - microchip lan743x: extend phy support
      - Fungible funeth: support UDP segmentation offload and XDP xmit
      - Solarflare EF100: add support for virtual function representors
      - MediaTek SoC: add XDP support

   - Mellanox Ethernet/IB switch (mlxsw):
      - dropped support for unreleased H/W (XM router).
      - improved stats accuracy
      - unified bridge model coversion improving scalability (parts 1-6)
      - support for PTP in Spectrum-2 asics

   - Broadcom PHYs
      - add PTP support for BCM54210E
      - add support for the BCM53128 internal PHY

   - Marvell Ethernet switches (prestera):
      - implement support for multicast forwarding offload

   - Embedded Ethernet switches:
      - refactor OcteonTx MAC filter for better scalability
      - improve TC H/W offload for the Felix driver
      - refactor the Microchip ksz8 and ksz9477 drivers to share the
        probe code (parts 1, 2), add support for phylink mac
        configuration

   - Other WiFi:
      - Microchip wilc1000: diable WEP support and enable WPA3
      - Atheros ath10k: encapsulation offload support

  Old code removal:

   - Neterion vxge ethernet driver: this is untouched since more than 10 years"

* tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits)
  doc: sfp-phylink: Fix a broken reference
  wireguard: selftests: support UML
  wireguard: allowedips: don't corrupt stack when detecting overflow
  wireguard: selftests: update config fragments
  wireguard: ratelimiter: use hrtimer in selftest
  net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ
  net: usb: ax88179_178a: Bind only to vendor-specific interface
  selftests: net: fix IOAM test skip return code
  net: usb: make USB_RTL8153_ECM non user configurable
  net: marvell: prestera: remove reduntant code
  octeontx2-pf: Reduce minimum mtu size to 60
  net: devlink: Fix missing mutex_unlock() call
  net/tls: Remove redundant workqueue flush before destroy
  net: txgbe: Fix an error handling path in txgbe_probe()
  net: dsa: Fix spelling mistakes and cleanup code
  Documentation: devlink: add add devlink-selftests to the table of contents
  dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock
  net: ionic: fix error check for vlan flags in ionic_set_nic_features()
  net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr()
  nfp: flower: add support for tunnel offload without key ID
  ...

1 files changed, 91 insertions, 116 deletions

diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index bd03e16f98a1..bfb58c91db04 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -71,22 +71,22 @@ struct smsc95xx_priv {
 	struct fwnode_handle *irqfwnode;
 	struct mii_bus *mdiobus;
 	struct phy_device *phydev;
+	struct task_struct *pm_task;
 };
 
 static bool turbo_mode = true;
 module_param(turbo_mode, bool, 0644);
 MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
 
-static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
-					    u32 *data, int in_pm)
+static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index,
+					  u32 *data)
 {
+	struct smsc95xx_priv *pdata = dev->driver_priv;
 	u32 buf;
 	int ret;
 	int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
 
-	BUG_ON(!dev);
-
-	if (!in_pm)
+	if (current != pdata->pm_task)
 		fn = usbnet_read_cmd;
 	else
 		fn = usbnet_read_cmd_nopm;
@@ -107,16 +107,15 @@ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
 	return ret;
 }
 
-static int __must_check __smsc95xx_write_reg(struct usbnet *dev, u32 index,
-					     u32 data, int in_pm)
+static int __must_check smsc95xx_write_reg(struct usbnet *dev, u32 index,
+					   u32 data)
 {
+	struct smsc95xx_priv *pdata = dev->driver_priv;
 	u32 buf;
 	int ret;
 	int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
 
-	BUG_ON(!dev);
-
-	if (!in_pm)
+	if (current != pdata->pm_task)
 		fn = usbnet_write_cmd;
 	else
 		fn = usbnet_write_cmd_nopm;
@@ -134,41 +133,16 @@ static int __must_check __smsc95xx_write_reg(struct usbnet *dev, u32 index,
 	return ret;
 }
 
-static int __must_check smsc95xx_read_reg_nopm(struct usbnet *dev, u32 index,
-					       u32 *data)
-{
-	return __smsc95xx_read_reg(dev, index, data, 1);
-}
-
-static int __must_check smsc95xx_write_reg_nopm(struct usbnet *dev, u32 index,
-						u32 data)
-{
-	return __smsc95xx_write_reg(dev, index, data, 1);
-}
-
-static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index,
-					  u32 *data)
-{
-	return __smsc95xx_read_reg(dev, index, data, 0);
-}
-
-static int __must_check smsc95xx_write_reg(struct usbnet *dev, u32 index,
-					   u32 data)
-{
-	return __smsc95xx_write_reg(dev, index, data, 0);
-}
-
 /* Loop until the read is completed with timeout
  * called with phy_mutex held */
-static int __must_check __smsc95xx_phy_wait_not_busy(struct usbnet *dev,
-						     int in_pm)
+static int __must_check smsc95xx_phy_wait_not_busy(struct usbnet *dev)
 {
 	unsigned long start_time = jiffies;
 	u32 val;
 	int ret;
 
 	do {
-		ret = __smsc95xx_read_reg(dev, MII_ADDR, &val, in_pm);
+		ret = smsc95xx_read_reg(dev, MII_ADDR, &val);
 		if (ret < 0) {
 			/* Ignore -ENODEV error during disconnect() */
 			if (ret == -ENODEV)
@@ -189,8 +163,7 @@ static u32 mii_address_cmd(int phy_id, int idx, u16 op)
 	return (phy_id & 0x1f) << 11 | (idx & 0x1f) << 6 | op;
 }
 
-static int __smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx,
-				int in_pm)
+static int smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx)
 {
 	u32 val, addr;
 	int ret;
@@ -198,7 +171,7 @@ static int __smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx,
 	mutex_lock(&dev->phy_mutex);
 
 	/* confirm MII not busy */
-	ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
+	ret = smsc95xx_phy_wait_not_busy(dev);
 	if (ret < 0) {
 		netdev_warn(dev->net, "%s: MII is busy\n", __func__);
 		goto done;
@@ -206,20 +179,20 @@ static int __smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx,
 
 	/* set the address, index & direction (read from PHY) */
 	addr = mii_address_cmd(phy_id, idx, MII_READ_ | MII_BUSY_);
-	ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm);
+	ret = smsc95xx_write_reg(dev, MII_ADDR, addr);
 	if (ret < 0) {
 		if (ret != -ENODEV)
 			netdev_warn(dev->net, "Error writing MII_ADDR\n");
 		goto done;
 	}
 
-	ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
+	ret = smsc95xx_phy_wait_not_busy(dev);
 	if (ret < 0) {
 		netdev_warn(dev->net, "Timed out reading MII reg %02X\n", idx);
 		goto done;
 	}
 
-	ret = __smsc95xx_read_reg(dev, MII_DATA, &val, in_pm);
+	ret = smsc95xx_read_reg(dev, MII_DATA, &val);
 	if (ret < 0) {
 		if (ret != -ENODEV)
 			netdev_warn(dev->net, "Error reading MII_DATA\n");
@@ -237,8 +210,8 @@ done:
 	return ret;
 }
 
-static void __smsc95xx_mdio_write(struct usbnet *dev, int phy_id,
-				  int idx, int regval, int in_pm)
+static void smsc95xx_mdio_write(struct usbnet *dev, int phy_id, int idx,
+				int regval)
 {
 	u32 val, addr;
 	int ret;
@@ -246,14 +219,14 @@ static void __smsc95xx_mdio_write(struct usbnet *dev, int phy_id,
 	mutex_lock(&dev->phy_mutex);
 
 	/* confirm MII not busy */
-	ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
+	ret = smsc95xx_phy_wait_not_busy(dev);
 	if (ret < 0) {
 		netdev_warn(dev->net, "%s: MII is busy\n", __func__);
 		goto done;
 	}
 
 	val = regval;
-	ret = __smsc95xx_write_reg(dev, MII_DATA, val, in_pm);
+	ret = smsc95xx_write_reg(dev, MII_DATA, val);
 	if (ret < 0) {
 		if (ret != -ENODEV)
 			netdev_warn(dev->net, "Error writing MII_DATA\n");
@@ -262,14 +235,14 @@ static void __smsc95xx_mdio_write(struct usbnet *dev, int phy_id,
 
 	/* set the address, index & direction (write to PHY) */
 	addr = mii_address_cmd(phy_id, idx, MII_WRITE_ | MII_BUSY_);
-	ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm);
+	ret = smsc95xx_write_reg(dev, MII_ADDR, addr);
 	if (ret < 0) {
 		if (ret != -ENODEV)
 			netdev_warn(dev->net, "Error writing MII_ADDR\n");
 		goto done;
 	}
 
-	ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
+	ret = smsc95xx_phy_wait_not_busy(dev);
 	if (ret < 0) {
 		netdev_warn(dev->net, "Timed out writing MII reg %02X\n", idx);
 		goto done;
@@ -279,25 +252,11 @@ done:
 	mutex_unlock(&dev->phy_mutex);
 }
 
-static int smsc95xx_mdio_read_nopm(struct usbnet *dev, int idx)
-{
-	struct smsc95xx_priv *pdata = dev->driver_priv;
-
-	return __smsc95xx_mdio_read(dev, pdata->phydev->mdio.addr, idx, 1);
-}
-
-static void smsc95xx_mdio_write_nopm(struct usbnet *dev, int idx, int regval)
-{
-	struct smsc95xx_priv *pdata = dev->driver_priv;
-
-	__smsc95xx_mdio_write(dev, pdata->phydev->mdio.addr, idx, regval, 1);
-}
-
 static int smsc95xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx)
 {
 	struct usbnet *dev = bus->priv;
 
-	return __smsc95xx_mdio_read(dev, phy_id, idx, 0);
+	return smsc95xx_mdio_read(dev, phy_id, idx);
 }
 
 static int smsc95xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx,
@@ -305,7 +264,7 @@ static int smsc95xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx,
 {
 	struct usbnet *dev = bus->priv;
 
-	__smsc95xx_mdio_write(dev, phy_id, idx, regval, 0);
+	smsc95xx_mdio_write(dev, phy_id, idx, regval);
 	return 0;
 }
 
@@ -865,7 +824,7 @@ static int smsc95xx_start_tx_path(struct usbnet *dev)
 }
 
 /* Starts the Receive path */
-static int smsc95xx_start_rx_path(struct usbnet *dev, int in_pm)
+static int smsc95xx_start_rx_path(struct usbnet *dev)
 {
 	struct smsc95xx_priv *pdata = dev->driver_priv;
 	unsigned long flags;
@@ -874,7 +833,7 @@ static int smsc95xx_start_rx_path(struct usbnet *dev, int in_pm)
 	pdata->mac_cr |= MAC_CR_RXEN_;
 	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
 
-	return __smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr, in_pm);
+	return smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
 }
 
 static int smsc95xx_reset(struct usbnet *dev)
@@ -1057,7 +1016,7 @@ static int smsc95xx_reset(struct usbnet *dev)
 		return ret;
 	}
 
-	ret = smsc95xx_start_rx_path(dev, 0);
+	ret = smsc95xx_start_rx_path(dev);
 	if (ret < 0) {
 		netdev_warn(dev->net, "Failed to start RX path\n");
 		return ret;
@@ -1291,16 +1250,17 @@ static u32 smsc_crc(const u8 *buffer, size_t len, int filter)
 	return crc << ((filter % 2) * 16);
 }
 
-static int smsc95xx_link_ok_nopm(struct usbnet *dev)
+static int smsc95xx_link_ok(struct usbnet *dev)
 {
+	struct smsc95xx_priv *pdata = dev->driver_priv;
 	int ret;
 
 	/* first, a dummy read, needed to latch some MII phys */
-	ret = smsc95xx_mdio_read_nopm(dev, MII_BMSR);
+	ret = smsc95xx_mdio_read(dev, pdata->phydev->mdio.addr, MII_BMSR);
 	if (ret < 0)
 		return ret;
 
-	ret = smsc95xx_mdio_read_nopm(dev, MII_BMSR);
+	ret = smsc95xx_mdio_read(dev, pdata->phydev->mdio.addr, MII_BMSR);
 	if (ret < 0)
 		return ret;
 
@@ -1313,14 +1273,14 @@ static int smsc95xx_enter_suspend0(struct usbnet *dev)
 	u32 val;
 	int ret;
 
-	ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+	ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
 	if (ret < 0)
 		return ret;
 
 	val &= (~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_));
 	val |= PM_CTL_SUS_MODE_0;
 
-	ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 	if (ret < 0)
 		return ret;
 
@@ -1332,12 +1292,12 @@ static int smsc95xx_enter_suspend0(struct usbnet *dev)
 	if (pdata->wolopts & WAKE_PHY)
 		val |= PM_CTL_WUPS_ED_;
 
-	ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 	if (ret < 0)
 		return ret;
 
 	/* read back PM_CTRL */
-	ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+	ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
 	if (ret < 0)
 		return ret;
 
@@ -1349,34 +1309,34 @@ static int smsc95xx_enter_suspend0(struct usbnet *dev)
 static int smsc95xx_enter_suspend1(struct usbnet *dev)
 {
 	struct smsc95xx_priv *pdata = dev->driver_priv;
+	int ret, phy_id = pdata->phydev->mdio.addr;
 	u32 val;
-	int ret;
 
 	/* reconfigure link pulse detection timing for
 	 * compatibility with non-standard link partners
 	 */
 	if (pdata->features & FEATURE_PHY_NLP_CROSSOVER)
-		smsc95xx_mdio_write_nopm(dev, PHY_EDPD_CONFIG,
-					 PHY_EDPD_CONFIG_DEFAULT);
+		smsc95xx_mdio_write(dev, phy_id, PHY_EDPD_CONFIG,
+				    PHY_EDPD_CONFIG_DEFAULT);
 
 	/* enable energy detect power-down mode */
-	ret = smsc95xx_mdio_read_nopm(dev, PHY_MODE_CTRL_STS);
+	ret = smsc95xx_mdio_read(dev, phy_id, PHY_MODE_CTRL_STS);
 	if (ret < 0)
 		return ret;
 
 	ret |= MODE_CTRL_STS_EDPWRDOWN_;
 
-	smsc95xx_mdio_write_nopm(dev, PHY_MODE_CTRL_STS, ret);
+	smsc95xx_mdio_write(dev, phy_id, PHY_MODE_CTRL_STS, ret);
 
 	/* enter SUSPEND1 mode */
-	ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+	ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
 	if (ret < 0)
 		return ret;
 
 	val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
 	val |= PM_CTL_SUS_MODE_1;
 
-	ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 	if (ret < 0)
 		return ret;
 
@@ -1384,7 +1344,7 @@ static int smsc95xx_enter_suspend1(struct usbnet *dev)
 	val &= ~PM_CTL_WUPS_;
 	val |= (PM_CTL_WUPS_ED_ | PM_CTL_ED_EN_);
 
-	ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 	if (ret < 0)
 		return ret;
 
@@ -1399,14 +1359,14 @@ static int smsc95xx_enter_suspend2(struct usbnet *dev)
 	u32 val;
 	int ret;
 
-	ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+	ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
 	if (ret < 0)
 		return ret;
 
 	val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
 	val |= PM_CTL_SUS_MODE_2;
 
-	ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 	if (ret < 0)
 		return ret;
 
@@ -1421,7 +1381,7 @@ static int smsc95xx_enter_suspend3(struct usbnet *dev)
 	u32 val;
 	int ret;
 
-	ret = smsc95xx_read_reg_nopm(dev, RX_FIFO_INF, &val);
+	ret = smsc95xx_read_reg(dev, RX_FIFO_INF, &val);
 	if (ret < 0)
 		return ret;
 
@@ -1430,14 +1390,14 @@ static int smsc95xx_enter_suspend3(struct usbnet *dev)
 		return -EBUSY;
 	}
 
-	ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+	ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
 	if (ret < 0)
 		return ret;
 
 	val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
 	val |= PM_CTL_SUS_MODE_3 | PM_CTL_RES_CLR_WKP_STS;
 
-	ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 	if (ret < 0)
 		return ret;
 
@@ -1445,7 +1405,7 @@ static int smsc95xx_enter_suspend3(struct usbnet *dev)
 	val &= ~PM_CTL_WUPS_;
 	val |= PM_CTL_WUPS_WOL_;
 
-	ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 	if (ret < 0)
 		return ret;
 
@@ -1490,9 +1450,12 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
 	u32 val, link_up;
 	int ret;
 
+	pdata->pm_task = current;
+
 	ret = usbnet_suspend(intf, message);
 	if (ret < 0) {
 		netdev_warn(dev->net, "usbnet_suspend error\n");
+		pdata->pm_task = NULL;
 		return ret;
 	}
 
@@ -1501,8 +1464,7 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
 		pdata->suspend_flags = 0;
 	}
 
-	/* determine if link is up using only _nopm functions */
-	link_up = smsc95xx_link_ok_nopm(dev);
+	link_up = smsc95xx_link_ok(dev);
 
 	if (message.event == PM_EVENT_AUTO_SUSPEND &&
 	    (pdata->features & FEATURE_REMOTE_WAKEUP)) {
@@ -1519,23 +1481,23 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
 		netdev_info(dev->net, "entering SUSPEND2 mode\n");
 
 		/* disable energy detect (link up) & wake up events */
-		ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+		ret = smsc95xx_read_reg(dev, WUCSR, &val);
 		if (ret < 0)
 			goto done;
 
 		val &= ~(WUCSR_MPEN_ | WUCSR_WAKE_EN_);
 
-		ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+		ret = smsc95xx_write_reg(dev, WUCSR, val);
 		if (ret < 0)
 			goto done;
 
-		ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+		ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
 		if (ret < 0)
 			goto done;
 
 		val &= ~(PM_CTL_ED_EN_ | PM_CTL_WOL_EN_);
 
-		ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+		ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 		if (ret < 0)
 			goto done;
 
@@ -1626,7 +1588,7 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
 		}
 
 		for (i = 0; i < (wuff_filter_count * 4); i++) {
-			ret = smsc95xx_write_reg_nopm(dev, WUFF, filter_mask[i]);
+			ret = smsc95xx_write_reg(dev, WUFF, filter_mask[i]);
 			if (ret < 0) {
 				kfree(filter_mask);
 				goto done;
@@ -1635,50 +1597,50 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
 		kfree(filter_mask);
 
 		for (i = 0; i < (wuff_filter_count / 4); i++) {
-			ret = smsc95xx_write_reg_nopm(dev, WUFF, command[i]);
+			ret = smsc95xx_write_reg(dev, WUFF, command[i]);
 			if (ret < 0)
 				goto done;
 		}
 
 		for (i = 0; i < (wuff_filter_count / 4); i++) {
-			ret = smsc95xx_write_reg_nopm(dev, WUFF, offset[i]);
+			ret = smsc95xx_write_reg(dev, WUFF, offset[i]);
 			if (ret < 0)
 				goto done;
 		}
 
 		for (i = 0; i < (wuff_filter_count / 2); i++) {
-			ret = smsc95xx_write_reg_nopm(dev, WUFF, crc[i]);
+			ret = smsc95xx_write_reg(dev, WUFF, crc[i]);
 			if (ret < 0)
 				goto done;
 		}
 
 		/* clear any pending pattern match packet status */
-		ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+		ret = smsc95xx_read_reg(dev, WUCSR, &val);
 		if (ret < 0)
 			goto done;
 
 		val |= WUCSR_WUFR_;
 
-		ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+		ret = smsc95xx_write_reg(dev, WUCSR, val);
 		if (ret < 0)
 			goto done;
 	}
 
 	if (pdata->wolopts & WAKE_MAGIC) {
 		/* clear any pending magic packet status */
-		ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+		ret = smsc95xx_read_reg(dev, WUCSR, &val);
 		if (ret < 0)
 			goto done;
 
 		val |= WUCSR_MPR_;
 
-		ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+		ret = smsc95xx_write_reg(dev, WUCSR, val);
 		if (ret < 0)
 			goto done;
 	}
 
 	/* enable/disable wakeup sources */
-	ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+	ret = smsc95xx_read_reg(dev, WUCSR, &val);
 	if (ret < 0)
 		goto done;
 
@@ -1698,12 +1660,12 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
 		val &= ~WUCSR_MPEN_;
 	}
 
-	ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+	ret = smsc95xx_write_reg(dev, WUCSR, val);
 	if (ret < 0)
 		goto done;
 
 	/* enable wol wakeup source */
-	ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+	ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
 	if (ret < 0)
 		goto done;
 
@@ -1713,12 +1675,12 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
 	if (pdata->wolopts & WAKE_PHY)
 		val |= PM_CTL_ED_EN_;
 
-	ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 	if (ret < 0)
 		goto done;
 
 	/* enable receiver to enable frame reception */
-	smsc95xx_start_rx_path(dev, 1);
+	smsc95xx_start_rx_path(dev);
 
 	/* some wol options are enabled, so enter SUSPEND0 */
 	netdev_info(dev->net, "entering SUSPEND0 mode\n");
@@ -1732,6 +1694,7 @@ done:
 	if (ret && PMSG_IS_AUTO(message))
 		usbnet_resume(intf);
 
+	pdata->pm_task = NULL;
 	return ret;
 }
 
@@ -1752,29 +1715,31 @@ static int smsc95xx_resume(struct usb_interface *intf)
 	/* do this first to ensure it's cleared even in error case */
 	pdata->suspend_flags = 0;
 
+	pdata->pm_task = current;
+
 	if (suspend_flags & SUSPEND_ALLMODES) {
 		/* clear wake-up sources */
-		ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+		ret = smsc95xx_read_reg(dev, WUCSR, &val);
 		if (ret < 0)
-			return ret;
+			goto done;
 
 		val &= ~(WUCSR_WAKE_EN_ | WUCSR_MPEN_);
 
-		ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+		ret = smsc95xx_write_reg(dev, WUCSR, val);
 		if (ret < 0)
-			return ret;
+			goto done;
 
 		/* clear wake-up status */
-		ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+		ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
 		if (ret < 0)
-			return ret;
+			goto done;
 
 		val &= ~PM_CTL_WOL_EN_;
 		val |= PM_CTL_WUPS_;
 
-		ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+		ret = smsc95xx_write_reg(dev, PM_CTRL, val);
 		if (ret < 0)
-			return ret;
+			goto done;
 	}
 
 	phy_init_hw(pdata->phydev);
@@ -1783,15 +1748,20 @@ static int smsc95xx_resume(struct usb_interface *intf)
 	if (ret < 0)
 		netdev_warn(dev->net, "usbnet_resume error\n");
 
+done:
+	pdata->pm_task = NULL;
 	return ret;
 }
 
 static int smsc95xx_reset_resume(struct usb_interface *intf)
 {
 	struct usbnet *dev = usb_get_intfdata(intf);
+	struct smsc95xx_priv *pdata = dev->driver_priv;
 	int ret;
 
+	pdata->pm_task = current;
 	ret = smsc95xx_reset(dev);
+	pdata->pm_task = NULL;
 	if (ret < 0)
 		return ret;
 
@@ -2088,6 +2058,11 @@ static const struct usb_device_id products[] = {
 		USB_DEVICE(0x0424, 0x9E08),
 		.driver_info = (unsigned long) &smsc95xx_info,
 	},
+	{
+		/* Microchip's EVB-LAN8670-USB 10BASE-T1S Ethernet Device */
+		USB_DEVICE(0x184F, 0x0051),
+		.driver_info = (unsigned long)&smsc95xx_info,
+	},
 	{ },		/* END */
 };
 MODULE_DEVICE_TABLE(usb, products);