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, 399 insertions, 0 deletions

diff --git a/drivers/edac/aspeed_edac.c b/drivers/edac/aspeed_edac.c
new file mode 100644
index 000000000..6bd5f8815
--- /dev/null
+++ b/drivers/edac/aspeed_edac.c
@@ -0,0 +1,399 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018, 2019 Cisco Systems
+ */
+
+#include <linux/edac.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/stop_machine.h>
+#include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/regmap.h>
+#include "edac_module.h"
+
+
+#define DRV_NAME "aspeed-edac"
+
+
+#define ASPEED_MCR_PROT        0x00 /* protection key register */
+#define ASPEED_MCR_CONF        0x04 /* configuration register */
+#define ASPEED_MCR_INTR_CTRL   0x50 /* interrupt control/status register */
+#define ASPEED_MCR_ADDR_UNREC  0x58 /* address of first un-recoverable error */
+#define ASPEED_MCR_ADDR_REC    0x5c /* address of last recoverable error */
+#define ASPEED_MCR_LAST        ASPEED_MCR_ADDR_REC
+
+
+#define ASPEED_MCR_PROT_PASSWD	            0xfc600309
+#define ASPEED_MCR_CONF_DRAM_TYPE               BIT(4)
+#define ASPEED_MCR_CONF_ECC                     BIT(7)
+#define ASPEED_MCR_INTR_CTRL_CLEAR             BIT(31)
+#define ASPEED_MCR_INTR_CTRL_CNT_REC   GENMASK(23, 16)
+#define ASPEED_MCR_INTR_CTRL_CNT_UNREC GENMASK(15, 12)
+#define ASPEED_MCR_INTR_CTRL_ENABLE  (BIT(0) | BIT(1))
+
+
+static struct regmap *aspeed_regmap;
+
+
+static int regmap_reg_write(void *context, unsigned int reg, unsigned int val)
+{
+	void __iomem *regs = (void __iomem *)context;
+
+	/* enable write to MCR register set */
+	writel(ASPEED_MCR_PROT_PASSWD, regs + ASPEED_MCR_PROT);
+
+	writel(val, regs + reg);
+
+	/* disable write to MCR register set */
+	writel(~ASPEED_MCR_PROT_PASSWD, regs + ASPEED_MCR_PROT);
+
+	return 0;
+}
+
+
+static int regmap_reg_read(void *context, unsigned int reg, unsigned int *val)
+{
+	void __iomem *regs = (void __iomem *)context;
+
+	*val = readl(regs + reg);
+
+	return 0;
+}
+
+static bool regmap_is_volatile(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case ASPEED_MCR_PROT:
+	case ASPEED_MCR_INTR_CTRL:
+	case ASPEED_MCR_ADDR_UNREC:
+	case ASPEED_MCR_ADDR_REC:
+		return true;
+	default:
+		return false;
+	}
+}
+
+
+static const struct regmap_config aspeed_regmap_config = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = 4,
+	.max_register = ASPEED_MCR_LAST,
+	.reg_write = regmap_reg_write,
+	.reg_read = regmap_reg_read,
+	.volatile_reg = regmap_is_volatile,
+	.fast_io = true,
+};
+
+
+static void count_rec(struct mem_ctl_info *mci, u8 rec_cnt, u32 rec_addr)
+{
+	struct csrow_info *csrow = mci->csrows[0];
+	u32 page, offset, syndrome;
+
+	if (!rec_cnt)
+		return;
+
+	/* report first few errors (if there are) */
+	/* note: no addresses are recorded */
+	if (rec_cnt > 1) {
+		/* page, offset and syndrome are not available */
+		page = 0;
+		offset = 0;
+		syndrome = 0;
+		edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, rec_cnt-1,
+				     page, offset, syndrome, 0, 0, -1,
+				     "address(es) not available", "");
+	}
+
+	/* report last error */
+	/* note: rec_addr is the last recoverable error addr */
+	page = rec_addr >> PAGE_SHIFT;
+	offset = rec_addr & ~PAGE_MASK;
+	/* syndrome is not available */
+	syndrome = 0;
+	edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
+			     csrow->first_page + page, offset, syndrome,
+			     0, 0, -1, "", "");
+}
+
+
+static void count_un_rec(struct mem_ctl_info *mci, u8 un_rec_cnt,
+			 u32 un_rec_addr)
+{
+	struct csrow_info *csrow = mci->csrows[0];
+	u32 page, offset, syndrome;
+
+	if (!un_rec_cnt)
+		return;
+
+	/* report 1. error */
+	/* note: un_rec_addr is the first unrecoverable error addr */
+	page = un_rec_addr >> PAGE_SHIFT;
+	offset = un_rec_addr & ~PAGE_MASK;
+	/* syndrome is not available */
+	syndrome = 0;
+	edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
+			     csrow->first_page + page, offset, syndrome,
+			     0, 0, -1, "", "");
+
+	/* report further errors (if there are) */
+	/* note: no addresses are recorded */
+	if (un_rec_cnt > 1) {
+		/* page, offset and syndrome are not available */
+		page = 0;
+		offset = 0;
+		syndrome = 0;
+		edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, un_rec_cnt-1,
+				     page, offset, syndrome, 0, 0, -1,
+				     "address(es) not available", "");
+	}
+}
+
+
+static irqreturn_t mcr_isr(int irq, void *arg)
+{
+	struct mem_ctl_info *mci = arg;
+	u32 rec_addr, un_rec_addr;
+	u32 reg50, reg5c, reg58;
+	u8  rec_cnt, un_rec_cnt;
+
+	regmap_read(aspeed_regmap, ASPEED_MCR_INTR_CTRL, &reg50);
+	dev_dbg(mci->pdev, "received edac interrupt w/ mcr register 50: 0x%x\n",
+		reg50);
+
+	/* collect data about recoverable and unrecoverable errors */
+	rec_cnt = (reg50 & ASPEED_MCR_INTR_CTRL_CNT_REC) >> 16;
+	un_rec_cnt = (reg50 & ASPEED_MCR_INTR_CTRL_CNT_UNREC) >> 12;
+
+	dev_dbg(mci->pdev, "%d recoverable interrupts and %d unrecoverable interrupts\n",
+		rec_cnt, un_rec_cnt);
+
+	regmap_read(aspeed_regmap, ASPEED_MCR_ADDR_UNREC, &reg58);
+	un_rec_addr = reg58;
+
+	regmap_read(aspeed_regmap, ASPEED_MCR_ADDR_REC, &reg5c);
+	rec_addr = reg5c;
+
+	/* clear interrupt flags and error counters: */
+	regmap_update_bits(aspeed_regmap, ASPEED_MCR_INTR_CTRL,
+			   ASPEED_MCR_INTR_CTRL_CLEAR,
+			   ASPEED_MCR_INTR_CTRL_CLEAR);
+
+	regmap_update_bits(aspeed_regmap, ASPEED_MCR_INTR_CTRL,
+			   ASPEED_MCR_INTR_CTRL_CLEAR, 0);
+
+	/* process recoverable and unrecoverable errors */
+	count_rec(mci, rec_cnt, rec_addr);
+	count_un_rec(mci, un_rec_cnt, un_rec_addr);
+
+	if (!rec_cnt && !un_rec_cnt)
+		dev_dbg(mci->pdev, "received edac interrupt, but did not find any ECC counters\n");
+
+	regmap_read(aspeed_regmap, ASPEED_MCR_INTR_CTRL, &reg50);
+	dev_dbg(mci->pdev, "edac interrupt handled. mcr reg 50 is now: 0x%x\n",
+		reg50);
+
+	return IRQ_HANDLED;
+}
+
+
+static int config_irq(void *ctx, struct platform_device *pdev)
+{
+	int irq;
+	int rc;
+
+	/* register interrupt handler */
+	irq = platform_get_irq(pdev, 0);
+	dev_dbg(&pdev->dev, "got irq %d\n", irq);
+	if (irq < 0)
+		return irq;
+
+	rc = devm_request_irq(&pdev->dev, irq, mcr_isr, IRQF_TRIGGER_HIGH,
+			      DRV_NAME, ctx);
+	if (rc) {
+		dev_err(&pdev->dev, "unable to request irq %d\n", irq);
+		return rc;
+	}
+
+	/* enable interrupts */
+	regmap_update_bits(aspeed_regmap, ASPEED_MCR_INTR_CTRL,
+			   ASPEED_MCR_INTR_CTRL_ENABLE,
+			   ASPEED_MCR_INTR_CTRL_ENABLE);
+
+	return 0;
+}
+
+
+static int init_csrows(struct mem_ctl_info *mci)
+{
+	struct csrow_info *csrow = mci->csrows[0];
+	u32 nr_pages, dram_type;
+	struct dimm_info *dimm;
+	struct device_node *np;
+	struct resource r;
+	u32 reg04;
+	int rc;
+
+	/* retrieve info about physical memory from device tree */
+	np = of_find_node_by_name(NULL, "memory");
+	if (!np) {
+		dev_err(mci->pdev, "dt: missing /memory node\n");
+		return -ENODEV;
+	}
+
+	rc = of_address_to_resource(np, 0, &r);
+
+	of_node_put(np);
+
+	if (rc) {
+		dev_err(mci->pdev, "dt: failed requesting resource for /memory node\n");
+		return rc;
+	}
+
+	dev_dbg(mci->pdev, "dt: /memory node resources: first page %pR, PAGE_SHIFT macro=0x%x\n",
+		&r, PAGE_SHIFT);
+
+	csrow->first_page = r.start >> PAGE_SHIFT;
+	nr_pages = resource_size(&r) >> PAGE_SHIFT;
+	csrow->last_page = csrow->first_page + nr_pages - 1;
+
+	regmap_read(aspeed_regmap, ASPEED_MCR_CONF, &reg04);
+	dram_type = (reg04 & ASPEED_MCR_CONF_DRAM_TYPE) ? MEM_DDR4 : MEM_DDR3;
+
+	dimm = csrow->channels[0]->dimm;
+	dimm->mtype = dram_type;
+	dimm->edac_mode = EDAC_SECDED;
+	dimm->nr_pages = nr_pages / csrow->nr_channels;
+
+	dev_dbg(mci->pdev, "initialized dimm with first_page=0x%lx and nr_pages=0x%x\n",
+		csrow->first_page, nr_pages);
+
+	return 0;
+}
+
+
+static int aspeed_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct edac_mc_layer layers[2];
+	struct mem_ctl_info *mci;
+	void __iomem *regs;
+	u32 reg04;
+	int rc;
+
+	regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	aspeed_regmap = devm_regmap_init(dev, NULL, (__force void *)regs,
+					 &aspeed_regmap_config);
+	if (IS_ERR(aspeed_regmap))
+		return PTR_ERR(aspeed_regmap);
+
+	/* bail out if ECC mode is not configured */
+	regmap_read(aspeed_regmap, ASPEED_MCR_CONF, &reg04);
+	if (!(reg04 & ASPEED_MCR_CONF_ECC)) {
+		dev_err(&pdev->dev, "ECC mode is not configured in u-boot\n");
+		return -EPERM;
+	}
+
+	edac_op_state = EDAC_OPSTATE_INT;
+
+	/* allocate & init EDAC MC data structure */
+	layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
+	layers[0].size = 1;
+	layers[0].is_virt_csrow = true;
+	layers[1].type = EDAC_MC_LAYER_CHANNEL;
+	layers[1].size = 1;
+	layers[1].is_virt_csrow = false;
+
+	mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, 0);
+	if (!mci)
+		return -ENOMEM;
+
+	mci->pdev = &pdev->dev;
+	mci->mtype_cap = MEM_FLAG_DDR3 | MEM_FLAG_DDR4;
+	mci->edac_ctl_cap = EDAC_FLAG_SECDED;
+	mci->edac_cap = EDAC_FLAG_SECDED;
+	mci->scrub_cap = SCRUB_FLAG_HW_SRC;
+	mci->scrub_mode = SCRUB_HW_SRC;
+	mci->mod_name = DRV_NAME;
+	mci->ctl_name = "MIC";
+	mci->dev_name = dev_name(&pdev->dev);
+
+	rc = init_csrows(mci);
+	if (rc) {
+		dev_err(&pdev->dev, "failed to init csrows\n");
+		goto probe_exit02;
+	}
+
+	platform_set_drvdata(pdev, mci);
+
+	/* register with edac core */
+	rc = edac_mc_add_mc(mci);
+	if (rc) {
+		dev_err(&pdev->dev, "failed to register with EDAC core\n");
+		goto probe_exit02;
+	}
+
+	/* register interrupt handler and enable interrupts */
+	rc = config_irq(mci, pdev);
+	if (rc) {
+		dev_err(&pdev->dev, "failed setting up irq\n");
+		goto probe_exit01;
+	}
+
+	return 0;
+
+probe_exit01:
+	edac_mc_del_mc(&pdev->dev);
+probe_exit02:
+	edac_mc_free(mci);
+	return rc;
+}
+
+
+static int aspeed_remove(struct platform_device *pdev)
+{
+	struct mem_ctl_info *mci;
+
+	/* disable interrupts */
+	regmap_update_bits(aspeed_regmap, ASPEED_MCR_INTR_CTRL,
+			   ASPEED_MCR_INTR_CTRL_ENABLE, 0);
+
+	/* free resources */
+	mci = edac_mc_del_mc(&pdev->dev);
+	if (mci)
+		edac_mc_free(mci);
+
+	return 0;
+}
+
+
+static const struct of_device_id aspeed_of_match[] = {
+	{ .compatible = "aspeed,ast2400-sdram-edac" },
+	{ .compatible = "aspeed,ast2500-sdram-edac" },
+	{ .compatible = "aspeed,ast2600-sdram-edac" },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, aspeed_of_match);
+
+static struct platform_driver aspeed_driver = {
+	.driver		= {
+		.name	= DRV_NAME,
+		.of_match_table = aspeed_of_match
+	},
+	.probe		= aspeed_probe,
+	.remove		= aspeed_remove
+};
+module_platform_driver(aspeed_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Stefan Schaeckeler <sschaeck@cisco.com>");
+MODULE_DESCRIPTION("Aspeed BMC SoC EDAC driver");
+MODULE_VERSION("1.0");