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, 401 insertions, 0 deletions

diff --git a/drivers/crypto/exynos-rng.c b/drivers/crypto/exynos-rng.c
new file mode 100644
index 000000000..cbd8ca6e5
--- /dev/null
+++ b/drivers/crypto/exynos-rng.c
@@ -0,0 +1,401 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * exynos-rng.c - Random Number Generator driver for the Exynos
+ *
+ * Copyright (c) 2017 Krzysztof Kozlowski <krzk@kernel.org>
+ *
+ * Loosely based on old driver from drivers/char/hw_random/exynos-rng.c:
+ * Copyright (C) 2012 Samsung Electronics
+ * Jonghwa Lee <jonghwa3.lee@samsung.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include <crypto/internal/rng.h>
+
+#define EXYNOS_RNG_CONTROL		0x0
+#define EXYNOS_RNG_STATUS		0x10
+
+#define EXYNOS_RNG_SEED_CONF		0x14
+#define EXYNOS_RNG_GEN_PRNG	        BIT(1)
+
+#define EXYNOS_RNG_SEED_BASE		0x140
+#define EXYNOS_RNG_SEED(n)		(EXYNOS_RNG_SEED_BASE + (n * 0x4))
+#define EXYNOS_RNG_OUT_BASE		0x160
+#define EXYNOS_RNG_OUT(n)		(EXYNOS_RNG_OUT_BASE + (n * 0x4))
+
+/* EXYNOS_RNG_CONTROL bit fields */
+#define EXYNOS_RNG_CONTROL_START	0x18
+/* EXYNOS_RNG_STATUS bit fields */
+#define EXYNOS_RNG_STATUS_SEED_SETTING_DONE	BIT(1)
+#define EXYNOS_RNG_STATUS_RNG_DONE		BIT(5)
+
+/* Five seed and output registers, each 4 bytes */
+#define EXYNOS_RNG_SEED_REGS		5
+#define EXYNOS_RNG_SEED_SIZE		(EXYNOS_RNG_SEED_REGS * 4)
+
+enum exynos_prng_type {
+	EXYNOS_PRNG_UNKNOWN = 0,
+	EXYNOS_PRNG_EXYNOS4,
+	EXYNOS_PRNG_EXYNOS5,
+};
+
+/*
+ * Driver re-seeds itself with generated random numbers to hinder
+ * backtracking of the original seed.
+ *
+ * Time for next re-seed in ms.
+ */
+#define EXYNOS_RNG_RESEED_TIME		1000
+#define EXYNOS_RNG_RESEED_BYTES		65536
+
+/*
+ * In polling mode, do not wait infinitely for the engine to finish the work.
+ */
+#define EXYNOS_RNG_WAIT_RETRIES		100
+
+/* Context for crypto */
+struct exynos_rng_ctx {
+	struct exynos_rng_dev		*rng;
+};
+
+/* Device associated memory */
+struct exynos_rng_dev {
+	struct device			*dev;
+	enum exynos_prng_type		type;
+	void __iomem			*mem;
+	struct clk			*clk;
+	struct mutex 			lock;
+	/* Generated numbers stored for seeding during resume */
+	u8				seed_save[EXYNOS_RNG_SEED_SIZE];
+	unsigned int			seed_save_len;
+	/* Time of last seeding in jiffies */
+	unsigned long			last_seeding;
+	/* Bytes generated since last seeding */
+	unsigned long			bytes_seeding;
+};
+
+static struct exynos_rng_dev *exynos_rng_dev;
+
+static u32 exynos_rng_readl(struct exynos_rng_dev *rng, u32 offset)
+{
+	return readl_relaxed(rng->mem + offset);
+}
+
+static void exynos_rng_writel(struct exynos_rng_dev *rng, u32 val, u32 offset)
+{
+	writel_relaxed(val, rng->mem + offset);
+}
+
+static int exynos_rng_set_seed(struct exynos_rng_dev *rng,
+			       const u8 *seed, unsigned int slen)
+{
+	u32 val;
+	int i;
+
+	/* Round seed length because loop iterates over full register size */
+	slen = ALIGN_DOWN(slen, 4);
+
+	if (slen < EXYNOS_RNG_SEED_SIZE)
+		return -EINVAL;
+
+	for (i = 0; i < slen ; i += 4) {
+		unsigned int seed_reg = (i / 4) % EXYNOS_RNG_SEED_REGS;
+
+		val = seed[i] << 24;
+		val |= seed[i + 1] << 16;
+		val |= seed[i + 2] << 8;
+		val |= seed[i + 3] << 0;
+
+		exynos_rng_writel(rng, val, EXYNOS_RNG_SEED(seed_reg));
+	}
+
+	val = exynos_rng_readl(rng, EXYNOS_RNG_STATUS);
+	if (!(val & EXYNOS_RNG_STATUS_SEED_SETTING_DONE)) {
+		dev_warn(rng->dev, "Seed setting not finished\n");
+		return -EIO;
+	}
+
+	rng->last_seeding = jiffies;
+	rng->bytes_seeding = 0;
+
+	return 0;
+}
+
+/*
+ * Start the engine and poll for finish.  Then read from output registers
+ * filling the 'dst' buffer up to 'dlen' bytes or up to size of generated
+ * random data (EXYNOS_RNG_SEED_SIZE).
+ *
+ * On success: return 0 and store number of read bytes under 'read' address.
+ * On error: return -ERRNO.
+ */
+static int exynos_rng_get_random(struct exynos_rng_dev *rng,
+				 u8 *dst, unsigned int dlen,
+				 unsigned int *read)
+{
+	int retry = EXYNOS_RNG_WAIT_RETRIES;
+
+	if (rng->type == EXYNOS_PRNG_EXYNOS4) {
+		exynos_rng_writel(rng, EXYNOS_RNG_CONTROL_START,
+				  EXYNOS_RNG_CONTROL);
+	} else if (rng->type == EXYNOS_PRNG_EXYNOS5) {
+		exynos_rng_writel(rng, EXYNOS_RNG_GEN_PRNG,
+				  EXYNOS_RNG_SEED_CONF);
+	}
+
+	while (!(exynos_rng_readl(rng,
+			EXYNOS_RNG_STATUS) & EXYNOS_RNG_STATUS_RNG_DONE) && --retry)
+		cpu_relax();
+
+	if (!retry)
+		return -ETIMEDOUT;
+
+	/* Clear status bit */
+	exynos_rng_writel(rng, EXYNOS_RNG_STATUS_RNG_DONE,
+			  EXYNOS_RNG_STATUS);
+	*read = min_t(size_t, dlen, EXYNOS_RNG_SEED_SIZE);
+	memcpy_fromio(dst, rng->mem + EXYNOS_RNG_OUT_BASE, *read);
+	rng->bytes_seeding += *read;
+
+	return 0;
+}
+
+/* Re-seed itself from time to time */
+static void exynos_rng_reseed(struct exynos_rng_dev *rng)
+{
+	unsigned long next_seeding = rng->last_seeding + \
+				     msecs_to_jiffies(EXYNOS_RNG_RESEED_TIME);
+	unsigned long now = jiffies;
+	unsigned int read = 0;
+	u8 seed[EXYNOS_RNG_SEED_SIZE];
+
+	if (time_before(now, next_seeding) &&
+	    rng->bytes_seeding < EXYNOS_RNG_RESEED_BYTES)
+		return;
+
+	if (exynos_rng_get_random(rng, seed, sizeof(seed), &read))
+		return;
+
+	exynos_rng_set_seed(rng, seed, read);
+
+	/* Let others do some of their job. */
+	mutex_unlock(&rng->lock);
+	mutex_lock(&rng->lock);
+}
+
+static int exynos_rng_generate(struct crypto_rng *tfm,
+			       const u8 *src, unsigned int slen,
+			       u8 *dst, unsigned int dlen)
+{
+	struct exynos_rng_ctx *ctx = crypto_rng_ctx(tfm);
+	struct exynos_rng_dev *rng = ctx->rng;
+	unsigned int read = 0;
+	int ret;
+
+	ret = clk_prepare_enable(rng->clk);
+	if (ret)
+		return ret;
+
+	mutex_lock(&rng->lock);
+	do {
+		ret = exynos_rng_get_random(rng, dst, dlen, &read);
+		if (ret)
+			break;
+
+		dlen -= read;
+		dst += read;
+
+		exynos_rng_reseed(rng);
+	} while (dlen > 0);
+	mutex_unlock(&rng->lock);
+
+	clk_disable_unprepare(rng->clk);
+
+	return ret;
+}
+
+static int exynos_rng_seed(struct crypto_rng *tfm, const u8 *seed,
+			   unsigned int slen)
+{
+	struct exynos_rng_ctx *ctx = crypto_rng_ctx(tfm);
+	struct exynos_rng_dev *rng = ctx->rng;
+	int ret;
+
+	ret = clk_prepare_enable(rng->clk);
+	if (ret)
+		return ret;
+
+	mutex_lock(&rng->lock);
+	ret = exynos_rng_set_seed(ctx->rng, seed, slen);
+	mutex_unlock(&rng->lock);
+
+	clk_disable_unprepare(rng->clk);
+
+	return ret;
+}
+
+static int exynos_rng_kcapi_init(struct crypto_tfm *tfm)
+{
+	struct exynos_rng_ctx *ctx = crypto_tfm_ctx(tfm);
+
+	ctx->rng = exynos_rng_dev;
+
+	return 0;
+}
+
+static struct rng_alg exynos_rng_alg = {
+	.generate		= exynos_rng_generate,
+	.seed			= exynos_rng_seed,
+	.seedsize		= EXYNOS_RNG_SEED_SIZE,
+	.base			= {
+		.cra_name		= "stdrng",
+		.cra_driver_name	= "exynos_rng",
+		.cra_priority		= 300,
+		.cra_ctxsize		= sizeof(struct exynos_rng_ctx),
+		.cra_module		= THIS_MODULE,
+		.cra_init		= exynos_rng_kcapi_init,
+	}
+};
+
+static int exynos_rng_probe(struct platform_device *pdev)
+{
+	struct exynos_rng_dev *rng;
+	int ret;
+
+	if (exynos_rng_dev)
+		return -EEXIST;
+
+	rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL);
+	if (!rng)
+		return -ENOMEM;
+
+	rng->type = (enum exynos_prng_type)of_device_get_match_data(&pdev->dev);
+
+	mutex_init(&rng->lock);
+
+	rng->dev = &pdev->dev;
+	rng->clk = devm_clk_get(&pdev->dev, "secss");
+	if (IS_ERR(rng->clk)) {
+		dev_err(&pdev->dev, "Couldn't get clock.\n");
+		return PTR_ERR(rng->clk);
+	}
+
+	rng->mem = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(rng->mem))
+		return PTR_ERR(rng->mem);
+
+	platform_set_drvdata(pdev, rng);
+
+	exynos_rng_dev = rng;
+
+	ret = crypto_register_rng(&exynos_rng_alg);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Couldn't register rng crypto alg: %d\n", ret);
+		exynos_rng_dev = NULL;
+	}
+
+	return ret;
+}
+
+static int exynos_rng_remove(struct platform_device *pdev)
+{
+	crypto_unregister_rng(&exynos_rng_alg);
+
+	exynos_rng_dev = NULL;
+
+	return 0;
+}
+
+static int __maybe_unused exynos_rng_suspend(struct device *dev)
+{
+	struct exynos_rng_dev *rng = dev_get_drvdata(dev);
+	int ret;
+
+	/* If we were never seeded then after resume it will be the same */
+	if (!rng->last_seeding)
+		return 0;
+
+	rng->seed_save_len = 0;
+	ret = clk_prepare_enable(rng->clk);
+	if (ret)
+		return ret;
+
+	mutex_lock(&rng->lock);
+
+	/* Get new random numbers and store them for seeding on resume. */
+	exynos_rng_get_random(rng, rng->seed_save, sizeof(rng->seed_save),
+			      &(rng->seed_save_len));
+
+	mutex_unlock(&rng->lock);
+
+	dev_dbg(rng->dev, "Stored %u bytes for seeding on system resume\n",
+		rng->seed_save_len);
+
+	clk_disable_unprepare(rng->clk);
+
+	return 0;
+}
+
+static int __maybe_unused exynos_rng_resume(struct device *dev)
+{
+	struct exynos_rng_dev *rng = dev_get_drvdata(dev);
+	int ret;
+
+	/* Never seeded so nothing to do */
+	if (!rng->last_seeding)
+		return 0;
+
+	ret = clk_prepare_enable(rng->clk);
+	if (ret)
+		return ret;
+
+	mutex_lock(&rng->lock);
+
+	ret = exynos_rng_set_seed(rng, rng->seed_save, rng->seed_save_len);
+
+	mutex_unlock(&rng->lock);
+
+	clk_disable_unprepare(rng->clk);
+
+	return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(exynos_rng_pm_ops, exynos_rng_suspend,
+			 exynos_rng_resume);
+
+static const struct of_device_id exynos_rng_dt_match[] = {
+	{
+		.compatible = "samsung,exynos4-rng",
+		.data = (const void *)EXYNOS_PRNG_EXYNOS4,
+	}, {
+		.compatible = "samsung,exynos5250-prng",
+		.data = (const void *)EXYNOS_PRNG_EXYNOS5,
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, exynos_rng_dt_match);
+
+static struct platform_driver exynos_rng_driver = {
+	.driver		= {
+		.name	= "exynos-rng",
+		.pm	= &exynos_rng_pm_ops,
+		.of_match_table = exynos_rng_dt_match,
+	},
+	.probe		= exynos_rng_probe,
+	.remove		= exynos_rng_remove,
+};
+
+module_platform_driver(exynos_rng_driver);
+
+MODULE_DESCRIPTION("Exynos H/W Random Number Generator driver");
+MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>");
+MODULE_LICENSE("GPL v2");