22 files changed, 8 insertions, 385 deletions

diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst
index 8bc71f24944814..160bfb0ae8baec 100644
--- a/Documentation/networking/ethtool-netlink.rst
+++ b/Documentation/networking/ethtool-netlink.rst
@@ -57,7 +57,6 @@ Structure of this header is
   ``ETHTOOL_A_HEADER_DEV_INDEX``  u32     device ifindex
   ``ETHTOOL_A_HEADER_DEV_NAME``   string  device name
   ``ETHTOOL_A_HEADER_FLAGS``      u32     flags common for all requests
-  ``ETHTOOL_A_HEADER_PHY_INDEX``  u32     phy device index
   ==============================  ======  =============================
 
 ``ETHTOOL_A_HEADER_DEV_INDEX`` and ``ETHTOOL_A_HEADER_DEV_NAME`` identify the
@@ -82,12 +81,6 @@ the behaviour is backward compatible, i.e. requests from old clients not aware
 of the flag should be interpreted the way the client expects. A client must
 not set flags it does not understand.
 
-``ETHTOOL_A_HEADER_PHY_INDEX`` identifies the Ethernet PHY the message relates to.
-As there are numerous commands that are related to PHY configuration, and because
-there may be more than one PHY on the link, the PHY index can be passed in the
-request for the commands that needs it. It is, however, not mandatory, and if it
-is not passed for commands that target a PHY, the net_device.phydev pointer
-is used.
 
 Bit sets
 ========
diff --git a/MAINTAINERS b/MAINTAINERS
index 40eb26e6c60cf6..b4ed6480e919b6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8027,8 +8027,6 @@ F:	include/linux/mii.h
 F:	include/linux/of_net.h
 F:	include/linux/phy.h
 F:	include/linux/phy_fixed.h
-F:	include/linux/phy_link_topology.h
-F:	include/linux/phy_link_topology_core.h
 F:	include/linux/phylib_stubs.h
 F:	include/linux/platform_data/mdio-bcm-unimac.h
 F:	include/linux/platform_data/mdio-gpio.h
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 1d8be374915f30..202ed7f450da6f 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -2,7 +2,7 @@
 # Makefile for Linux PHY drivers
 
 libphy-y			:= phy.o phy-c45.o phy-core.o phy_device.o \
-				   linkmode.o phy_link_topology.o
+				   linkmode.o
 mdio-bus-y			+= mdio_bus.o mdio_device.o
 
 ifdef CONFIG_MDIO_DEVICE
diff --git a/drivers/net/phy/marvell-88x2222.c b/drivers/net/phy/marvell-88x2222.c
index 0b777cdd7078b1..b88398e6872bcf 100644
--- a/drivers/net/phy/marvell-88x2222.c
+++ b/drivers/net/phy/marvell-88x2222.c
@@ -553,8 +553,6 @@ static const struct sfp_upstream_ops sfp_phy_ops = {
 	.link_down = mv2222_sfp_link_down,
 	.attach = phy_sfp_attach,
 	.detach = phy_sfp_detach,
-	.connect_phy = phy_sfp_connect_phy,
-	.disconnect_phy = phy_sfp_disconnect_phy,
 };
 
 static int mv2222_probe(struct phy_device *phydev)
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 9964bf3dea2fb2..b89fbffa6a931a 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -3613,8 +3613,6 @@ static const struct sfp_upstream_ops m88e1510_sfp_ops = {
 	.module_remove = m88e1510_sfp_remove,
 	.attach = phy_sfp_attach,
 	.detach = phy_sfp_detach,
-	.connect_phy = phy_sfp_connect_phy,
-	.disconnect_phy = phy_sfp_disconnect_phy,
 };
 
 static int m88e1510_probe(struct phy_device *phydev)
diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
index 6642eb642d4bdd..ad43e280930c35 100644
--- a/drivers/net/phy/marvell10g.c
+++ b/drivers/net/phy/marvell10g.c
@@ -503,8 +503,6 @@ static int mv3310_sfp_insert(void *upstream, const struct sfp_eeprom_id *id)
 static const struct sfp_upstream_ops mv3310_sfp_ops = {
 	.attach = phy_sfp_attach,
 	.detach = phy_sfp_detach,
-	.connect_phy = phy_sfp_connect_phy,
-	.disconnect_phy = phy_sfp_disconnect_phy,
 	.module_insert = mv3310_sfp_insert,
 };
 
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 616bd7ba46cbf1..6c6ec947570929 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -29,7 +29,6 @@
 #include <linux/phy.h>
 #include <linux/phylib_stubs.h>
 #include <linux/phy_led_triggers.h>
-#include <linux/phy_link_topology.h>
 #include <linux/pse-pd/pse.h>
 #include <linux/property.h>
 #include <linux/rtnetlink.h>
@@ -277,14 +276,6 @@ static void phy_mdio_device_remove(struct mdio_device *mdiodev)
 
 static struct phy_driver genphy_driver;
 
-static struct phy_link_topology *phy_get_link_topology(struct phy_device *phydev)
-{
-	if (phydev->attached_dev)
-		return phydev->attached_dev->link_topo;
-
-	return NULL;
-}
-
 static LIST_HEAD(phy_fixup_list);
 static DEFINE_MUTEX(phy_fixup_lock);
 
@@ -1379,46 +1370,6 @@ phy_standalone_show(struct device *dev, struct device_attribute *attr,
 static DEVICE_ATTR_RO(phy_standalone);
 
 /**
- * phy_sfp_connect_phy - Connect the SFP module's PHY to the upstream PHY
- * @upstream: pointer to the upstream phy device
- * @phy: pointer to the SFP module's phy device
- *
- * This helper allows keeping track of PHY devices on the link. It adds the
- * SFP module's phy to the phy namespace of the upstream phy
- */
-int phy_sfp_connect_phy(void *upstream, struct phy_device *phy)
-{
-	struct phy_device *phydev = upstream;
-	struct phy_link_topology *topo = phy_get_link_topology(phydev);
-
-	if (topo)
-		return phy_link_topo_add_phy(topo, phy, PHY_UPSTREAM_PHY, phydev);
-
-	return 0;
-}
-EXPORT_SYMBOL(phy_sfp_connect_phy);
-
-/**
- * phy_sfp_disconnect_phy - Disconnect the SFP module's PHY from the upstream PHY
- * @upstream: pointer to the upstream phy device
- * @phy: pointer to the SFP module's phy device
- *
- * This helper allows keeping track of PHY devices on the link. It removes the
- * SFP module's phy to the phy namespace of the upstream phy. As the module phy
- * will be destroyed, re-inserting the same module will add a new phy with a
- * new index.
- */
-void phy_sfp_disconnect_phy(void *upstream, struct phy_device *phy)
-{
-	struct phy_device *phydev = upstream;
-	struct phy_link_topology *topo = phy_get_link_topology(phydev);
-
-	if (topo)
-		phy_link_topo_del_phy(topo, phy);
-}
-EXPORT_SYMBOL(phy_sfp_disconnect_phy);
-
-/**
  * phy_sfp_attach - attach the SFP bus to the PHY upstream network device
  * @upstream: pointer to the phy device
  * @bus: sfp bus representing cage being attached
@@ -1560,11 +1511,6 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
 
 		if (phydev->sfp_bus_attached)
 			dev->sfp_bus = phydev->sfp_bus;
-
-		err = phy_link_topo_add_phy(dev->link_topo, phydev,
-					    PHY_UPSTREAM_MAC, dev);
-		if (err)
-			goto error;
 	}
 
 	/* Some Ethernet drivers try to connect to a PHY device before
@@ -1992,7 +1938,6 @@ void phy_detach(struct phy_device *phydev)
 	if (dev) {
 		phydev->attached_dev->phydev = NULL;
 		phydev->attached_dev = NULL;
-		phy_link_topo_del_phy(dev->link_topo, phydev);
 	}
 	phydev->phylink = NULL;
 
diff --git a/drivers/net/phy/phy_link_topology.c b/drivers/net/phy/phy_link_topology.c
deleted file mode 100644
index 985941c5c55872..00000000000000
--- a/drivers/net/phy/phy_link_topology.c
+++ /dev/null
@@ -1,105 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Infrastructure to handle all PHY devices connected to a given netdev,
- * either directly or indirectly attached.
- *
- * Copyright (c) 2023 Maxime Chevallier<maxime.chevallier@bootlin.com>
- */
-
-#include <linux/phy_link_topology.h>
-#include <linux/netdevice.h>
-#include <linux/phy.h>
-#include <linux/rtnetlink.h>
-#include <linux/xarray.h>
-
-struct phy_link_topology *phy_link_topo_create(struct net_device *dev)
-{
-	struct phy_link_topology *topo;
-
-	topo = kzalloc(sizeof(*topo), GFP_KERNEL);
-	if (!topo)
-		return ERR_PTR(-ENOMEM);
-
-	xa_init_flags(&topo->phys, XA_FLAGS_ALLOC1);
-	topo->next_phy_index = 1;
-
-	return topo;
-}
-
-void phy_link_topo_destroy(struct phy_link_topology *topo)
-{
-	if (!topo)
-		return;
-
-	xa_destroy(&topo->phys);
-	kfree(topo);
-}
-
-int phy_link_topo_add_phy(struct phy_link_topology *topo,
-			  struct phy_device *phy,
-			  enum phy_upstream upt, void *upstream)
-{
-	struct phy_device_node *pdn;
-	int ret;
-
-	pdn = kzalloc(sizeof(*pdn), GFP_KERNEL);
-	if (!pdn)
-		return -ENOMEM;
-
-	pdn->phy = phy;
-	switch (upt) {
-	case PHY_UPSTREAM_MAC:
-		pdn->upstream.netdev = (struct net_device *)upstream;
-		if (phy_on_sfp(phy))
-			pdn->parent_sfp_bus = pdn->upstream.netdev->sfp_bus;
-		break;
-	case PHY_UPSTREAM_PHY:
-		pdn->upstream.phydev = (struct phy_device *)upstream;
-		if (phy_on_sfp(phy))
-			pdn->parent_sfp_bus = pdn->upstream.phydev->sfp_bus;
-		break;
-	default:
-		ret = -EINVAL;
-		goto err;
-	}
-	pdn->upstream_type = upt;
-
-	/* Attempt to re-use a previously allocated phy_index */
-	if (phy->phyindex) {
-		ret = xa_insert(&topo->phys, phy->phyindex, pdn, GFP_KERNEL);
-
-		/* Errors could be either -ENOMEM or -EBUSY. If the phy has an
-		 * index, and there's another entry at the same index, this is
-		 * unexpected and we still error-out
-		 */
-		if (ret)
-			goto err;
-		return 0;
-	}
-
-	ret = xa_alloc_cyclic(&topo->phys, &phy->phyindex, pdn, xa_limit_32b,
-			      &topo->next_phy_index, GFP_KERNEL);
-	if (ret)
-		goto err;
-
-	return 0;
-
-err:
-	kfree(pdn);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(phy_link_topo_add_phy);
-
-void phy_link_topo_del_phy(struct phy_link_topology *topo,
-			   struct phy_device *phy)
-{
-	struct phy_device_node *pdn = xa_erase(&topo->phys, phy->phyindex);
-
-	/* We delete the PHY from the topology, however we don't re-set the
-	 * phy->phyindex field. If the PHY isn't gone, we can re-assign it the
-	 * same index next time it's added back to the topology
-	 */
-
-	kfree(pdn);
-}
-EXPORT_SYMBOL_GPL(phy_link_topo_del_phy);
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index b7e5c669dc8ef1..994471fad833f9 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -3411,8 +3411,7 @@ static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy)
 	return ret;
 }
 
-static void phylink_sfp_disconnect_phy(void *upstream,
-				       struct phy_device *phydev)
+static void phylink_sfp_disconnect_phy(void *upstream)
 {
 	phylink_disconnect_phy(upstream);
 }
diff --git a/drivers/net/phy/qcom/at803x.c b/drivers/net/phy/qcom/at803x.c
index 105602581a0336..c8f83e5f78ab9c 100644
--- a/drivers/net/phy/qcom/at803x.c
+++ b/drivers/net/phy/qcom/at803x.c
@@ -770,8 +770,6 @@ static const struct sfp_upstream_ops at8031_sfp_ops = {
 	.attach = phy_sfp_attach,
 	.detach = phy_sfp_detach,
 	.module_insert = at8031_sfp_insert,
-	.connect_phy = phy_sfp_connect_phy,
-	.disconnect_phy = phy_sfp_disconnect_phy,
 };
 
 static int at8031_parse_dt(struct phy_device *phydev)
diff --git a/drivers/net/phy/qcom/qca807x.c b/drivers/net/phy/qcom/qca807x.c
index 5eb0ab1cb70e96..672c6929119a62 100644
--- a/drivers/net/phy/qcom/qca807x.c
+++ b/drivers/net/phy/qcom/qca807x.c
@@ -699,8 +699,6 @@ static const struct sfp_upstream_ops qca807x_sfp_ops = {
 	.detach = phy_sfp_detach,
 	.module_insert = qca807x_sfp_insert,
 	.module_remove = qca807x_sfp_remove,
-	.connect_phy = phy_sfp_connect_phy,
-	.disconnect_phy = phy_sfp_disconnect_phy,
 };
 
 static int qca807x_probe(struct phy_device *phydev)
diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c
index 37c85f1e6534e2..2f44fc51848f44 100644
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -487,7 +487,7 @@ static void sfp_unregister_bus(struct sfp_bus *bus)
 			bus->socket_ops->stop(bus->sfp);
 		bus->socket_ops->detach(bus->sfp);
 		if (bus->phydev && ops && ops->disconnect_phy)
-			ops->disconnect_phy(bus->upstream, bus->phydev);
+			ops->disconnect_phy(bus->upstream);
 	}
 	bus->registered = false;
 }
@@ -743,7 +743,7 @@ void sfp_remove_phy(struct sfp_bus *bus)
 	const struct sfp_upstream_ops *ops = sfp_get_upstream_ops(bus);
 
 	if (ops && ops->disconnect_phy)
-		ops->disconnect_phy(bus->upstream, bus->phydev);
+		ops->disconnect_phy(bus->upstream);
 	bus->phydev = NULL;
 }
 EXPORT_SYMBOL_GPL(sfp_remove_phy);
@@ -860,14 +860,3 @@ void sfp_unregister_socket(struct sfp_bus *bus)
 	sfp_bus_put(bus);
 }
 EXPORT_SYMBOL_GPL(sfp_unregister_socket);
-
-const char *sfp_get_name(struct sfp_bus *bus)
-{
-	ASSERT_RTNL();
-
-	if (bus->sfp_dev)
-		return dev_name(bus->sfp_dev);
-
-	return NULL;
-}
-EXPORT_SYMBOL_GPL(sfp_get_name);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index cf261fb89d73b6..d20c6c99eb887c 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -40,6 +40,7 @@
 #include <net/dcbnl.h>
 #endif
 #include <net/netprio_cgroup.h>
+
 #include <linux/netdev_features.h>
 #include <linux/neighbour.h>
 #include <uapi/linux/netdevice.h>
@@ -51,7 +52,6 @@
 #include <net/net_trackers.h>
 #include <net/net_debug.h>
 #include <net/dropreason-core.h>
-#include <linux/phy_link_topology_core.h>
 
 struct netpoll_info;
 struct device;
@@ -1975,7 +1975,6 @@ enum netdev_reg_state {
  *	@fcoe_ddp_xid:	Max exchange id for FCoE LRO by ddp
  *
  *	@priomap:	XXX: need comments on this one
- *	@link_topo:	Physical link topology tracking attached PHYs
  *	@phydev:	Physical device may attach itself
  *			for hardware timestamping
  *	@sfp_bus:	attached &struct sfp_bus structure.
@@ -2368,7 +2367,6 @@ struct net_device {
 #if IS_ENABLED(CONFIG_CGROUP_NET_PRIO)
 	struct netprio_map __rcu *priomap;
 #endif
-	struct phy_link_topology	*link_topo;
 	struct phy_device	*phydev;
 	struct sfp_bus		*sfp_bus;
 	struct lock_class_key	*qdisc_tx_busylock;
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 3ddfe7fe781aac..e6e83304558e07 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -550,9 +550,6 @@ struct macsec_ops;
  * @drv: Pointer to the driver for this PHY instance
  * @devlink: Create a link between phy dev and mac dev, if the external phy
  *           used by current mac interface is managed by another mac interface.
- * @phyindex: Unique id across the phy's parent tree of phys to address the PHY
- *	      from userspace, similar to ifindex. A zero index means the PHY
- *	      wasn't assigned an id yet.
  * @phy_id: UID for this device found during discovery
  * @c45_ids: 802.3-c45 Device Identifiers if is_c45.
  * @is_c45:  Set to true if this PHY uses clause 45 addressing.
@@ -653,7 +650,6 @@ struct phy_device {
 
 	struct device_link *devlink;
 
-	u32 phyindex;
 	u32 phy_id;
 
 	struct phy_c45_device_ids c45_ids;
@@ -1758,8 +1754,6 @@ int phy_suspend(struct phy_device *phydev);
 int phy_resume(struct phy_device *phydev);
 int __phy_resume(struct phy_device *phydev);
 int phy_loopback(struct phy_device *phydev, bool enable);
-int phy_sfp_connect_phy(void *upstream, struct phy_device *phy);
-void phy_sfp_disconnect_phy(void *upstream, struct phy_device *phy);
 void phy_sfp_attach(void *upstream, struct sfp_bus *bus);
 void phy_sfp_detach(void *upstream, struct sfp_bus *bus);
 int phy_sfp_probe(struct phy_device *phydev,
diff --git a/include/linux/phy_link_topology.h b/include/linux/phy_link_topology.h
deleted file mode 100644
index 6b79feb607e7f9..00000000000000
--- a/include/linux/phy_link_topology.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * PHY device list allow maintaining a list of PHY devices that are
- * part of a netdevice's link topology. PHYs can for example be chained,
- * as is the case when using a PHY that exposes an SFP module, on which an
- * SFP transceiver that embeds a PHY is connected.
- *
- * This list can then be used by userspace to leverage individual PHY
- * capabilities.
- */
-#ifndef __PHY_LINK_TOPOLOGY_H
-#define __PHY_LINK_TOPOLOGY_H
-
-#include <linux/ethtool.h>
-#include <linux/phy_link_topology_core.h>
-
-struct xarray;
-struct phy_device;
-struct net_device;
-struct sfp_bus;
-
-struct phy_device_node {
-	enum phy_upstream upstream_type;
-
-	union {
-		struct net_device	*netdev;
-		struct phy_device	*phydev;
-	} upstream;
-
-	struct sfp_bus *parent_sfp_bus;
-
-	struct phy_device *phy;
-};
-
-struct phy_link_topology {
-	struct xarray phys;
-	u32 next_phy_index;
-};
-
-static inline struct phy_device *
-phy_link_topo_get_phy(struct phy_link_topology *topo, u32 phyindex)
-{
-	struct phy_device_node *pdn = xa_load(&topo->phys, phyindex);
-
-	if (pdn)
-		return pdn->phy;
-
-	return NULL;
-}
-
-#if IS_REACHABLE(CONFIG_PHYLIB)
-int phy_link_topo_add_phy(struct phy_link_topology *topo,
-			  struct phy_device *phy,
-			  enum phy_upstream upt, void *upstream);
-
-void phy_link_topo_del_phy(struct phy_link_topology *lt, struct phy_device *phy);
-
-#else
-static inline int phy_link_topo_add_phy(struct phy_link_topology *topo,
-					struct phy_device *phy,
-					enum phy_upstream upt, void *upstream)
-{
-	return 0;
-}
-
-static inline void phy_link_topo_del_phy(struct phy_link_topology *topo,
-					 struct phy_device *phy)
-{
-}
-#endif
-
-#endif /* __PHY_LINK_TOPOLOGY_H */
diff --git a/include/linux/phy_link_topology_core.h b/include/linux/phy_link_topology_core.h
deleted file mode 100644
index 0a6479055745ab..00000000000000
--- a/include/linux/phy_link_topology_core.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __PHY_LINK_TOPOLOGY_CORE_H
-#define __PHY_LINK_TOPOLOGY_CORE_H
-
-struct phy_link_topology;
-
-#if IS_REACHABLE(CONFIG_PHYLIB)
-
-struct phy_link_topology *phy_link_topo_create(struct net_device *dev);
-void phy_link_topo_destroy(struct phy_link_topology *topo);
-
-#else
-
-static inline struct phy_link_topology *phy_link_topo_create(struct net_device *dev)
-{
-	return NULL;
-}
-
-static inline void phy_link_topo_destroy(struct phy_link_topology *topo)
-{
-}
-
-#endif
-
-#endif /* __PHY_LINK_TOPOLOGY_CORE_H */
diff --git a/include/linux/sfp.h b/include/linux/sfp.h
index 5ebc57f78c9554..a45da7eef9a266 100644
--- a/include/linux/sfp.h
+++ b/include/linux/sfp.h
@@ -544,7 +544,7 @@ struct sfp_upstream_ops {
 	void (*link_down)(void *priv);
 	void (*link_up)(void *priv);
 	int (*connect_phy)(void *priv, struct phy_device *);
-	void (*disconnect_phy)(void *priv, struct phy_device *);
+	void (*disconnect_phy)(void *priv);
 };
 
 #if IS_ENABLED(CONFIG_SFP)
@@ -570,7 +570,6 @@ struct sfp_bus *sfp_bus_find_fwnode(const struct fwnode_handle *fwnode);
 int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
 			 const struct sfp_upstream_ops *ops);
 void sfp_bus_del_upstream(struct sfp_bus *bus);
-const char *sfp_get_name(struct sfp_bus *bus);
 #else
 static inline int sfp_parse_port(struct sfp_bus *bus,
 				 const struct sfp_eeprom_id *id,
@@ -649,11 +648,6 @@ static inline int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
 static inline void sfp_bus_del_upstream(struct sfp_bus *bus)
 {
 }
-
-static inline const char *sfp_get_name(struct sfp_bus *bus)
-{
-	return NULL;
-}
 #endif
 
 #endif
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 041e09c3515d0d..8733a3117902d4 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -2323,20 +2323,4 @@ struct ethtool_link_settings {
 	 * __u32 map_lp_advertising[link_mode_masks_nwords];
 	 */
 };
-
-/**
- * enum phy_upstream - Represents the upstream component a given PHY device
- * is connected to, as in what is on the other end of the MII bus. Most PHYs
- * will be attached to an Ethernet MAC controller, but in some cases, there's
- * an intermediate PHY used as a media-converter, which will driver another
- * MII interface as its output.
- * @PHY_UPSTREAM_MAC: Upstream component is a MAC (a switch port,
- *		      or ethernet controller)
- * @PHY_UPSTREAM_PHY: Upstream component is a PHY (likely a media converter)
- */
-enum phy_upstream {
-	PHY_UPSTREAM_MAC,
-	PHY_UPSTREAM_PHY,
-};
-
 #endif /* _UAPI_LINUX_ETHTOOL_H */
diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h
index f17dbe54bf5ee4..b49b804b94957c 100644
--- a/include/uapi/linux/ethtool_netlink.h
+++ b/include/uapi/linux/ethtool_netlink.h
@@ -132,7 +132,6 @@ enum {
 	ETHTOOL_A_HEADER_DEV_INDEX,		/* u32 */
 	ETHTOOL_A_HEADER_DEV_NAME,		/* string */
 	ETHTOOL_A_HEADER_FLAGS,			/* u32 - ETHTOOL_FLAG_* */
-	ETHTOOL_A_HEADER_PHY_INDEX,		/* u32 */
 
 	/* add new constants above here */
 	__ETHTOOL_A_HEADER_CNT,
diff --git a/net/core/dev.c b/net/core/dev.c
index d2ce91a334c1de..e1bb6d7856d922 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -158,7 +158,6 @@
 #include <net/page_pool/types.h>
 #include <net/page_pool/helpers.h>
 #include <net/rps.h>
-#include <linux/phy_link_topology_core.h>
 
 #include "dev.h"
 #include "net-sysfs.h"
@@ -10998,12 +10997,6 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 #ifdef CONFIG_NET_SCHED
 	hash_init(dev->qdisc_hash);
 #endif
-	dev->link_topo = phy_link_topo_create(dev);
-	if (IS_ERR(dev->link_topo)) {
-		dev->link_topo = NULL;
-		goto free_all;
-	}
-
 	dev->priv_flags = IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM;
 	setup(dev);
 
@@ -11092,8 +11085,6 @@ void free_netdev(struct net_device *dev)
 	free_percpu(dev->xdp_bulkq);
 	dev->xdp_bulkq = NULL;
 
-	phy_link_topo_destroy(dev->link_topo);
-
 	/*  Compatibility with error handling in drivers */
 	if (dev->reg_state == NETREG_UNINITIALIZED ||
 	    dev->reg_state == NETREG_DUMMY) {
diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c
index 563e94e0cbd855..bd04f28d5cf4bb 100644
--- a/net/ethtool/netlink.c
+++ b/net/ethtool/netlink.c
@@ -4,7 +4,6 @@
 #include <linux/ethtool_netlink.h>
 #include <linux/pm_runtime.h>
 #include "netlink.h"
-#include <linux/phy_link_topology.h>
 
 static struct genl_family ethtool_genl_family;
 
@@ -31,24 +30,6 @@ const struct nla_policy ethnl_header_policy_stats[] = {
 							  ETHTOOL_FLAGS_STATS),
 };
 
-const struct nla_policy ethnl_header_policy_phy[] = {
-	[ETHTOOL_A_HEADER_DEV_INDEX]	= { .type = NLA_U32 },
-	[ETHTOOL_A_HEADER_DEV_NAME]	= { .type = NLA_NUL_STRING,
-					    .len = ALTIFNAMSIZ - 1 },
-	[ETHTOOL_A_HEADER_FLAGS]	= NLA_POLICY_MASK(NLA_U32,
-							  ETHTOOL_FLAGS_BASIC),
-	[ETHTOOL_A_HEADER_PHY_INDEX]		= NLA_POLICY_MIN(NLA_U32, 1),
-};
-
-const struct nla_policy ethnl_header_policy_phy_stats[] = {
-	[ETHTOOL_A_HEADER_DEV_INDEX]	= { .type = NLA_U32 },
-	[ETHTOOL_A_HEADER_DEV_NAME]	= { .type = NLA_NUL_STRING,
-					    .len = ALTIFNAMSIZ - 1 },
-	[ETHTOOL_A_HEADER_FLAGS]	= NLA_POLICY_MASK(NLA_U32,
-							  ETHTOOL_FLAGS_STATS),
-	[ETHTOOL_A_HEADER_PHY_INDEX]		= NLA_POLICY_MIN(NLA_U32, 1),
-};
-
 int ethnl_ops_begin(struct net_device *dev)
 {
 	int ret;
@@ -108,9 +89,8 @@ int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info,
 			       const struct nlattr *header, struct net *net,
 			       struct netlink_ext_ack *extack, bool require_dev)
 {
-	struct nlattr *tb[ARRAY_SIZE(ethnl_header_policy_phy)];
+	struct nlattr *tb[ARRAY_SIZE(ethnl_header_policy)];
 	const struct nlattr *devname_attr;
-	struct phy_device *phydev = NULL;
 	struct net_device *dev = NULL;
 	u32 flags = 0;
 	int ret;
@@ -124,7 +104,7 @@ int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info,
 	/* No validation here, command policy should have a nested policy set
 	 * for the header, therefore validation should have already been done.
 	 */
-	ret = nla_parse_nested(tb, ARRAY_SIZE(ethnl_header_policy_phy) - 1, header,
+	ret = nla_parse_nested(tb, ARRAY_SIZE(ethnl_header_policy) - 1, header,
 			       NULL, extack);
 	if (ret < 0)
 		return ret;
@@ -165,30 +145,6 @@ int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info,
 		return -EINVAL;
 	}
 
-	if (dev) {
-		if (tb[ETHTOOL_A_HEADER_PHY_INDEX]) {
-			struct nlattr *phy_id;
-
-			phy_id = tb[ETHTOOL_A_HEADER_PHY_INDEX];
-			phydev = phy_link_topo_get_phy(dev->link_topo,
-						       nla_get_u32(phy_id));
-			if (!phydev) {
-				NL_SET_BAD_ATTR(extack, phy_id);
-				return -ENODEV;
-			}
-		} else {
-			/* If we need a PHY but no phy index is specified, fallback
-			 * to dev->phydev
-			 */
-			phydev = dev->phydev;
-		}
-	} else if (tb[ETHTOOL_A_HEADER_PHY_INDEX]) {
-		NL_SET_ERR_MSG_ATTR(extack, header,
-				    "can't target a PHY without a netdev");
-		return -EINVAL;
-	}
-
-	req_info->phydev = phydev;
 	req_info->dev = dev;
 	req_info->flags = flags;
 	return 0;
diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h
index d57a890b5d9eed..9a333a8d04c1f0 100644
--- a/net/ethtool/netlink.h
+++ b/net/ethtool/netlink.h
@@ -250,7 +250,6 @@ static inline unsigned int ethnl_reply_header_size(void)
  * @dev:   network device the request is for (may be null)
  * @dev_tracker: refcount tracker for @dev reference
  * @flags: request flags common for all request types
- * @phydev: phy_device connected to @dev this request is for (may be null)
  *
  * This is a common base for request specific structures holding data from
  * parsed userspace request. These always embed struct ethnl_req_info at
@@ -260,7 +259,6 @@ struct ethnl_req_info {
 	struct net_device	*dev;
 	netdevice_tracker	dev_tracker;
 	u32			flags;
-	struct phy_device	*phydev;
 };
 
 static inline void ethnl_parse_header_dev_put(struct ethnl_req_info *req_info)
@@ -397,12 +395,9 @@ extern const struct ethnl_request_ops ethnl_rss_request_ops;
 extern const struct ethnl_request_ops ethnl_plca_cfg_request_ops;
 extern const struct ethnl_request_ops ethnl_plca_status_request_ops;
 extern const struct ethnl_request_ops ethnl_mm_request_ops;
-extern const struct ethnl_request_ops ethnl_phy_request_ops;
 
 extern const struct nla_policy ethnl_header_policy[ETHTOOL_A_HEADER_FLAGS + 1];
 extern const struct nla_policy ethnl_header_policy_stats[ETHTOOL_A_HEADER_FLAGS + 1];
-extern const struct nla_policy ethnl_header_policy_phy[ETHTOOL_A_HEADER_PHY_INDEX + 1];
-extern const struct nla_policy ethnl_header_policy_phy_stats[ETHTOOL_A_HEADER_PHY_INDEX + 1];
 extern const struct nla_policy ethnl_strset_get_policy[ETHTOOL_A_STRSET_COUNTS_ONLY + 1];
 extern const struct nla_policy ethnl_linkinfo_get_policy[ETHTOOL_A_LINKINFO_HEADER + 1];
 extern const struct nla_policy ethnl_linkinfo_set_policy[ETHTOOL_A_LINKINFO_TP_MDIX_CTRL + 1];