Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 446 insertions, 0 deletions

diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
new file mode 100644
index 000000000..4dd50546d
--- /dev/null
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -0,0 +1,446 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
+ *
+ * Description: CoreSight Replicator driver
+ */
+
+#include <linux/acpi.h>
+#include <linux/amba/bus.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/pm_runtime.h>
+#include <linux/property.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/coresight.h>
+
+#include "coresight-priv.h"
+
+#define REPLICATOR_IDFILTER0		0x000
+#define REPLICATOR_IDFILTER1		0x004
+
+DEFINE_CORESIGHT_DEVLIST(replicator_devs, "replicator");
+
+/**
+ * struct replicator_drvdata - specifics associated to a replicator component
+ * @base:	memory mapped base address for this component. Also indicates
+ *		whether this one is programmable or not.
+ * @atclk:	optional clock for the core parts of the replicator.
+ * @csdev:	component vitals needed by the framework
+ * @spinlock:	serialize enable/disable operations.
+ * @check_idfilter_val: check if the context is lost upon clock removal.
+ */
+struct replicator_drvdata {
+	void __iomem		*base;
+	struct clk		*atclk;
+	struct coresight_device	*csdev;
+	spinlock_t		spinlock;
+	bool			check_idfilter_val;
+};
+
+static void dynamic_replicator_reset(struct replicator_drvdata *drvdata)
+{
+	struct coresight_device *csdev = drvdata->csdev;
+
+	CS_UNLOCK(drvdata->base);
+
+	if (!coresight_claim_device_unlocked(csdev)) {
+		writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER0);
+		writel_relaxed(0xff, drvdata->base + REPLICATOR_IDFILTER1);
+		coresight_disclaim_device_unlocked(csdev);
+	}
+
+	CS_LOCK(drvdata->base);
+}
+
+/*
+ * replicator_reset : Reset the replicator configuration to sane values.
+ */
+static inline void replicator_reset(struct replicator_drvdata *drvdata)
+{
+	if (drvdata->base)
+		dynamic_replicator_reset(drvdata);
+}
+
+static int dynamic_replicator_enable(struct replicator_drvdata *drvdata,
+				     int inport, int outport)
+{
+	int rc = 0;
+	u32 id0val, id1val;
+	struct coresight_device *csdev = drvdata->csdev;
+
+	CS_UNLOCK(drvdata->base);
+
+	id0val = readl_relaxed(drvdata->base + REPLICATOR_IDFILTER0);
+	id1val = readl_relaxed(drvdata->base + REPLICATOR_IDFILTER1);
+
+	/*
+	 * Some replicator designs lose context when AMBA clocks are removed,
+	 * so have a check for this.
+	 */
+	if (drvdata->check_idfilter_val && id0val == 0x0 && id1val == 0x0)
+		id0val = id1val = 0xff;
+
+	if (id0val == 0xff && id1val == 0xff)
+		rc = coresight_claim_device_unlocked(csdev);
+
+	if (!rc) {
+		switch (outport) {
+		case 0:
+			id0val = 0x0;
+			break;
+		case 1:
+			id1val = 0x0;
+			break;
+		default:
+			WARN_ON(1);
+			rc = -EINVAL;
+		}
+	}
+
+	/* Ensure that the outport is enabled. */
+	if (!rc) {
+		writel_relaxed(id0val, drvdata->base + REPLICATOR_IDFILTER0);
+		writel_relaxed(id1val, drvdata->base + REPLICATOR_IDFILTER1);
+	}
+
+	CS_LOCK(drvdata->base);
+
+	return rc;
+}
+
+static int replicator_enable(struct coresight_device *csdev, int inport,
+			     int outport)
+{
+	int rc = 0;
+	struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+	unsigned long flags;
+	bool first_enable = false;
+
+	spin_lock_irqsave(&drvdata->spinlock, flags);
+	if (atomic_read(&csdev->refcnt[outport]) == 0) {
+		if (drvdata->base)
+			rc = dynamic_replicator_enable(drvdata, inport,
+						       outport);
+		if (!rc)
+			first_enable = true;
+	}
+	if (!rc)
+		atomic_inc(&csdev->refcnt[outport]);
+	spin_unlock_irqrestore(&drvdata->spinlock, flags);
+
+	if (first_enable)
+		dev_dbg(&csdev->dev, "REPLICATOR enabled\n");
+	return rc;
+}
+
+static void dynamic_replicator_disable(struct replicator_drvdata *drvdata,
+				       int inport, int outport)
+{
+	u32 reg;
+	struct coresight_device *csdev = drvdata->csdev;
+
+	switch (outport) {
+	case 0:
+		reg = REPLICATOR_IDFILTER0;
+		break;
+	case 1:
+		reg = REPLICATOR_IDFILTER1;
+		break;
+	default:
+		WARN_ON(1);
+		return;
+	}
+
+	CS_UNLOCK(drvdata->base);
+
+	/* disable the flow of ATB data through port */
+	writel_relaxed(0xff, drvdata->base + reg);
+
+	if ((readl_relaxed(drvdata->base + REPLICATOR_IDFILTER0) == 0xff) &&
+	    (readl_relaxed(drvdata->base + REPLICATOR_IDFILTER1) == 0xff))
+		coresight_disclaim_device_unlocked(csdev);
+	CS_LOCK(drvdata->base);
+}
+
+static void replicator_disable(struct coresight_device *csdev, int inport,
+			       int outport)
+{
+	struct replicator_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+	unsigned long flags;
+	bool last_disable = false;
+
+	spin_lock_irqsave(&drvdata->spinlock, flags);
+	if (atomic_dec_return(&csdev->refcnt[outport]) == 0) {
+		if (drvdata->base)
+			dynamic_replicator_disable(drvdata, inport, outport);
+		last_disable = true;
+	}
+	spin_unlock_irqrestore(&drvdata->spinlock, flags);
+
+	if (last_disable)
+		dev_dbg(&csdev->dev, "REPLICATOR disabled\n");
+}
+
+static const struct coresight_ops_link replicator_link_ops = {
+	.enable		= replicator_enable,
+	.disable	= replicator_disable,
+};
+
+static const struct coresight_ops replicator_cs_ops = {
+	.link_ops	= &replicator_link_ops,
+};
+
+static struct attribute *replicator_mgmt_attrs[] = {
+	coresight_simple_reg32(idfilter0, REPLICATOR_IDFILTER0),
+	coresight_simple_reg32(idfilter1, REPLICATOR_IDFILTER1),
+	NULL,
+};
+
+static const struct attribute_group replicator_mgmt_group = {
+	.attrs = replicator_mgmt_attrs,
+	.name = "mgmt",
+};
+
+static const struct attribute_group *replicator_groups[] = {
+	&replicator_mgmt_group,
+	NULL,
+};
+
+static int replicator_probe(struct device *dev, struct resource *res)
+{
+	int ret = 0;
+	struct coresight_platform_data *pdata = NULL;
+	struct replicator_drvdata *drvdata;
+	struct coresight_desc desc = { 0 };
+	void __iomem *base;
+
+	if (is_of_node(dev_fwnode(dev)) &&
+	    of_device_is_compatible(dev->of_node, "arm,coresight-replicator"))
+		dev_warn_once(dev,
+			      "Uses OBSOLETE CoreSight replicator binding\n");
+
+	desc.name = coresight_alloc_device_name(&replicator_devs, dev);
+	if (!desc.name)
+		return -ENOMEM;
+
+	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
+	if (!drvdata)
+		return -ENOMEM;
+
+	drvdata->atclk = devm_clk_get(dev, "atclk"); /* optional */
+	if (!IS_ERR(drvdata->atclk)) {
+		ret = clk_prepare_enable(drvdata->atclk);
+		if (ret)
+			return ret;
+	}
+
+	/*
+	 * Map the device base for dynamic-replicator, which has been
+	 * validated by AMBA core
+	 */
+	if (res) {
+		base = devm_ioremap_resource(dev, res);
+		if (IS_ERR(base)) {
+			ret = PTR_ERR(base);
+			goto out_disable_clk;
+		}
+		drvdata->base = base;
+		desc.groups = replicator_groups;
+		desc.access = CSDEV_ACCESS_IOMEM(base);
+	}
+
+	if (fwnode_property_present(dev_fwnode(dev),
+				    "qcom,replicator-loses-context"))
+		drvdata->check_idfilter_val = true;
+
+	dev_set_drvdata(dev, drvdata);
+
+	pdata = coresight_get_platform_data(dev);
+	if (IS_ERR(pdata)) {
+		ret = PTR_ERR(pdata);
+		goto out_disable_clk;
+	}
+	dev->platform_data = pdata;
+
+	spin_lock_init(&drvdata->spinlock);
+	desc.type = CORESIGHT_DEV_TYPE_LINK;
+	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
+	desc.ops = &replicator_cs_ops;
+	desc.pdata = dev->platform_data;
+	desc.dev = dev;
+
+	drvdata->csdev = coresight_register(&desc);
+	if (IS_ERR(drvdata->csdev)) {
+		ret = PTR_ERR(drvdata->csdev);
+		goto out_disable_clk;
+	}
+
+	replicator_reset(drvdata);
+	pm_runtime_put(dev);
+
+out_disable_clk:
+	if (ret && !IS_ERR_OR_NULL(drvdata->atclk))
+		clk_disable_unprepare(drvdata->atclk);
+	return ret;
+}
+
+static int replicator_remove(struct device *dev)
+{
+	struct replicator_drvdata *drvdata = dev_get_drvdata(dev);
+
+	coresight_unregister(drvdata->csdev);
+	return 0;
+}
+
+static int static_replicator_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	pm_runtime_get_noresume(&pdev->dev);
+	pm_runtime_set_active(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
+	/* Static replicators do not have programming base */
+	ret = replicator_probe(&pdev->dev, NULL);
+
+	if (ret) {
+		pm_runtime_put_noidle(&pdev->dev);
+		pm_runtime_disable(&pdev->dev);
+	}
+
+	return ret;
+}
+
+static int static_replicator_remove(struct platform_device *pdev)
+{
+	replicator_remove(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int replicator_runtime_suspend(struct device *dev)
+{
+	struct replicator_drvdata *drvdata = dev_get_drvdata(dev);
+
+	if (drvdata && !IS_ERR(drvdata->atclk))
+		clk_disable_unprepare(drvdata->atclk);
+
+	return 0;
+}
+
+static int replicator_runtime_resume(struct device *dev)
+{
+	struct replicator_drvdata *drvdata = dev_get_drvdata(dev);
+
+	if (drvdata && !IS_ERR(drvdata->atclk))
+		clk_prepare_enable(drvdata->atclk);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops replicator_dev_pm_ops = {
+	SET_RUNTIME_PM_OPS(replicator_runtime_suspend,
+			   replicator_runtime_resume, NULL)
+};
+
+static const struct of_device_id static_replicator_match[] = {
+	{.compatible = "arm,coresight-replicator"},
+	{.compatible = "arm,coresight-static-replicator"},
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, static_replicator_match);
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id static_replicator_acpi_ids[] = {
+	{"ARMHC985", 0}, /* ARM CoreSight Static Replicator */
+	{}
+};
+
+MODULE_DEVICE_TABLE(acpi, static_replicator_acpi_ids);
+#endif
+
+static struct platform_driver static_replicator_driver = {
+	.probe          = static_replicator_probe,
+	.remove         = static_replicator_remove,
+	.driver         = {
+		.name   = "coresight-static-replicator",
+		/* THIS_MODULE is taken care of by platform_driver_register() */
+		.of_match_table = of_match_ptr(static_replicator_match),
+		.acpi_match_table = ACPI_PTR(static_replicator_acpi_ids),
+		.pm	= &replicator_dev_pm_ops,
+		.suppress_bind_attrs = true,
+	},
+};
+
+static int dynamic_replicator_probe(struct amba_device *adev,
+				    const struct amba_id *id)
+{
+	return replicator_probe(&adev->dev, &adev->res);
+}
+
+static void dynamic_replicator_remove(struct amba_device *adev)
+{
+	replicator_remove(&adev->dev);
+}
+
+static const struct amba_id dynamic_replicator_ids[] = {
+	CS_AMBA_ID(0x000bb909),
+	CS_AMBA_ID(0x000bb9ec),		/* Coresight SoC-600 */
+	{},
+};
+
+MODULE_DEVICE_TABLE(amba, dynamic_replicator_ids);
+
+static struct amba_driver dynamic_replicator_driver = {
+	.drv = {
+		.name	= "coresight-dynamic-replicator",
+		.pm	= &replicator_dev_pm_ops,
+		.owner	= THIS_MODULE,
+		.suppress_bind_attrs = true,
+	},
+	.probe		= dynamic_replicator_probe,
+	.remove         = dynamic_replicator_remove,
+	.id_table	= dynamic_replicator_ids,
+};
+
+static int __init replicator_init(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&static_replicator_driver);
+	if (ret) {
+		pr_info("Error registering platform driver\n");
+		return ret;
+	}
+
+	ret = amba_driver_register(&dynamic_replicator_driver);
+	if (ret) {
+		pr_info("Error registering amba driver\n");
+		platform_driver_unregister(&static_replicator_driver);
+	}
+
+	return ret;
+}
+
+static void __exit replicator_exit(void)
+{
+	platform_driver_unregister(&static_replicator_driver);
+	amba_driver_unregister(&dynamic_replicator_driver);
+}
+
+module_init(replicator_init);
+module_exit(replicator_exit);
+
+MODULE_AUTHOR("Pratik Patel <pratikp@codeaurora.org>");
+MODULE_AUTHOR("Mathieu Poirier <mathieu.poirier@linaro.org>");
+MODULE_DESCRIPTION("Arm CoreSight Replicator Driver");
+MODULE_LICENSE("GPL v2");