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, 379 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
new file mode 100644
index 000000000..87f2c2d2d
--- /dev/null
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -0,0 +1,379 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * OMAP2+ common Clock Management (CM) IP block functions
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ * Paul Walmsley
+ *
+ * XXX This code should eventually be moved to a CM driver.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/bug.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include "cm2xxx.h"
+#include "cm3xxx.h"
+#include "cm33xx.h"
+#include "cm44xx.h"
+#include "clock.h"
+
+/*
+ * cm_ll_data: function pointers to SoC-specific implementations of
+ * common CM functions
+ */
+static struct cm_ll_data null_cm_ll_data;
+static const struct cm_ll_data *cm_ll_data = &null_cm_ll_data;
+
+/* cm_base: base virtual address of the CM IP block */
+struct omap_domain_base cm_base;
+
+/* cm2_base: base virtual address of the CM2 IP block (OMAP44xx only) */
+struct omap_domain_base cm2_base;
+
+#define CM_NO_CLOCKS		0x1
+#define CM_SINGLE_INSTANCE	0x2
+
+/**
+ * cm_split_idlest_reg - split CM_IDLEST reg addr into its components
+ * @idlest_reg: CM_IDLEST* virtual address
+ * @prcm_inst: pointer to an s16 to return the PRCM instance offset
+ * @idlest_reg_id: pointer to a u8 to return the CM_IDLESTx register ID
+ *
+ * Given an absolute CM_IDLEST register address @idlest_reg, passes
+ * the PRCM instance offset and IDLEST register ID back to the caller
+ * via the @prcm_inst and @idlest_reg_id.  Returns -EINVAL upon error,
+ * or 0 upon success.  XXX This function is only needed until absolute
+ * register addresses are removed from the OMAP struct clk records.
+ */
+int cm_split_idlest_reg(struct clk_omap_reg *idlest_reg, s16 *prcm_inst,
+			u8 *idlest_reg_id)
+{
+	int ret;
+	if (!cm_ll_data->split_idlest_reg) {
+		WARN_ONCE(1, "cm: %s: no low-level function defined\n",
+			  __func__);
+		return -EINVAL;
+	}
+
+	ret = cm_ll_data->split_idlest_reg(idlest_reg, prcm_inst,
+					   idlest_reg_id);
+	*prcm_inst -= cm_base.offset;
+	return ret;
+}
+
+/**
+ * omap_cm_wait_module_ready - wait for a module to leave idle or standby
+ * @part: PRCM partition
+ * @prcm_mod: PRCM module offset
+ * @idlest_reg: CM_IDLESTx register
+ * @idlest_shift: shift of the bit in the CM_IDLEST* register to check
+ *
+ * Wait for the PRCM to indicate that the module identified by
+ * (@prcm_mod, @idlest_id, @idlest_shift) is clocked.  Return 0 upon
+ * success, -EBUSY if the module doesn't enable in time, or -EINVAL if
+ * no per-SoC wait_module_ready() function pointer has been registered
+ * or if the idlest register is unknown on the SoC.
+ */
+int omap_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_reg,
+			      u8 idlest_shift)
+{
+	if (!cm_ll_data->wait_module_ready) {
+		WARN_ONCE(1, "cm: %s: no low-level function defined\n",
+			  __func__);
+		return -EINVAL;
+	}
+
+	return cm_ll_data->wait_module_ready(part, prcm_mod, idlest_reg,
+					     idlest_shift);
+}
+
+/**
+ * omap_cm_wait_module_idle - wait for a module to enter idle or standby
+ * @part: PRCM partition
+ * @prcm_mod: PRCM module offset
+ * @idlest_reg: CM_IDLESTx register
+ * @idlest_shift: shift of the bit in the CM_IDLEST* register to check
+ *
+ * Wait for the PRCM to indicate that the module identified by
+ * (@prcm_mod, @idlest_id, @idlest_shift) is no longer clocked.  Return
+ * 0 upon success, -EBUSY if the module doesn't enable in time, or
+ * -EINVAL if no per-SoC wait_module_idle() function pointer has been
+ * registered or if the idlest register is unknown on the SoC.
+ */
+int omap_cm_wait_module_idle(u8 part, s16 prcm_mod, u16 idlest_reg,
+			     u8 idlest_shift)
+{
+	if (!cm_ll_data->wait_module_idle) {
+		WARN_ONCE(1, "cm: %s: no low-level function defined\n",
+			  __func__);
+		return -EINVAL;
+	}
+
+	return cm_ll_data->wait_module_idle(part, prcm_mod, idlest_reg,
+					    idlest_shift);
+}
+
+/**
+ * omap_cm_module_enable - enable a module
+ * @mode: target mode for the module
+ * @part: PRCM partition
+ * @inst: PRCM instance
+ * @clkctrl_offs: CM_CLKCTRL register offset for the module
+ *
+ * Enables clocks for a module identified by (@part, @inst, @clkctrl_offs)
+ * making its IO space accessible. Return 0 upon success, -EINVAL if no
+ * per-SoC module_enable() function pointer has been registered.
+ */
+int omap_cm_module_enable(u8 mode, u8 part, u16 inst, u16 clkctrl_offs)
+{
+	if (!cm_ll_data->module_enable) {
+		WARN_ONCE(1, "cm: %s: no low-level function defined\n",
+			  __func__);
+		return -EINVAL;
+	}
+
+	cm_ll_data->module_enable(mode, part, inst, clkctrl_offs);
+	return 0;
+}
+
+/**
+ * omap_cm_module_disable - disable a module
+ * @part: PRCM partition
+ * @inst: PRCM instance
+ * @clkctrl_offs: CM_CLKCTRL register offset for the module
+ *
+ * Disables clocks for a module identified by (@part, @inst, @clkctrl_offs)
+ * makings its IO space inaccessible. Return 0 upon success, -EINVAL if
+ * no per-SoC module_disable() function pointer has been registered.
+ */
+int omap_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs)
+{
+	if (!cm_ll_data->module_disable) {
+		WARN_ONCE(1, "cm: %s: no low-level function defined\n",
+			  __func__);
+		return -EINVAL;
+	}
+
+	cm_ll_data->module_disable(part, inst, clkctrl_offs);
+	return 0;
+}
+
+u32 omap_cm_xlate_clkctrl(u8 part, u16 inst, u16 clkctrl_offs)
+{
+	if (!cm_ll_data->xlate_clkctrl) {
+		WARN_ONCE(1, "cm: %s: no low-level function defined\n",
+			  __func__);
+		return 0;
+	}
+	return cm_ll_data->xlate_clkctrl(part, inst, clkctrl_offs);
+}
+
+/**
+ * cm_register - register per-SoC low-level data with the CM
+ * @cld: low-level per-SoC OMAP CM data & function pointers to register
+ *
+ * Register per-SoC low-level OMAP CM data and function pointers with
+ * the OMAP CM common interface.  The caller must keep the data
+ * pointed to by @cld valid until it calls cm_unregister() and
+ * it returns successfully.  Returns 0 upon success, -EINVAL if @cld
+ * is NULL, or -EEXIST if cm_register() has already been called
+ * without an intervening cm_unregister().
+ */
+int cm_register(const struct cm_ll_data *cld)
+{
+	if (!cld)
+		return -EINVAL;
+
+	if (cm_ll_data != &null_cm_ll_data)
+		return -EEXIST;
+
+	cm_ll_data = cld;
+
+	return 0;
+}
+
+/**
+ * cm_unregister - unregister per-SoC low-level data & function pointers
+ * @cld: low-level per-SoC OMAP CM data & function pointers to unregister
+ *
+ * Unregister per-SoC low-level OMAP CM data and function pointers
+ * that were previously registered with cm_register().  The
+ * caller may not destroy any of the data pointed to by @cld until
+ * this function returns successfully.  Returns 0 upon success, or
+ * -EINVAL if @cld is NULL or if @cld does not match the struct
+ * cm_ll_data * previously registered by cm_register().
+ */
+int cm_unregister(const struct cm_ll_data *cld)
+{
+	if (!cld || cm_ll_data != cld)
+		return -EINVAL;
+
+	cm_ll_data = &null_cm_ll_data;
+
+	return 0;
+}
+
+#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
+	defined(CONFIG_SOC_DRA7XX)
+static struct omap_prcm_init_data cm_data __initdata = {
+	.index = TI_CLKM_CM,
+	.init = omap4_cm_init,
+};
+
+static struct omap_prcm_init_data cm2_data __initdata = {
+	.index = TI_CLKM_CM2,
+	.init = omap4_cm_init,
+};
+#endif
+
+#ifdef CONFIG_ARCH_OMAP2
+static struct omap_prcm_init_data omap2_prcm_data __initdata = {
+	.index = TI_CLKM_CM,
+	.init = omap2xxx_cm_init,
+	.flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE,
+};
+#endif
+
+#ifdef CONFIG_ARCH_OMAP3
+static struct omap_prcm_init_data omap3_cm_data __initdata = {
+	.index = TI_CLKM_CM,
+	.init = omap3xxx_cm_init,
+	.flags = CM_SINGLE_INSTANCE,
+
+	/*
+	 * IVA2 offset is a negative value, must offset the cm_base address
+	 * by this to get it to positive side on the iomap
+	 */
+	.offset = -OMAP3430_IVA2_MOD,
+};
+#endif
+
+#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_TI81XX)
+static struct omap_prcm_init_data am3_prcm_data __initdata = {
+	.index = TI_CLKM_CM,
+	.flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE,
+	.init = am33xx_cm_init,
+};
+#endif
+
+#ifdef CONFIG_SOC_AM43XX
+static struct omap_prcm_init_data am4_prcm_data __initdata = {
+	.index = TI_CLKM_CM,
+	.flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE,
+	.init = omap4_cm_init,
+};
+#endif
+
+static const struct of_device_id omap_cm_dt_match_table[] __initconst = {
+#ifdef CONFIG_ARCH_OMAP2
+	{ .compatible = "ti,omap2-prcm", .data = &omap2_prcm_data },
+#endif
+#ifdef CONFIG_ARCH_OMAP3
+	{ .compatible = "ti,omap3-cm", .data = &omap3_cm_data },
+#endif
+#ifdef CONFIG_ARCH_OMAP4
+	{ .compatible = "ti,omap4-cm1", .data = &cm_data },
+	{ .compatible = "ti,omap4-cm2", .data = &cm2_data },
+#endif
+#ifdef CONFIG_SOC_OMAP5
+	{ .compatible = "ti,omap5-cm-core-aon", .data = &cm_data },
+	{ .compatible = "ti,omap5-cm-core", .data = &cm2_data },
+#endif
+#ifdef CONFIG_SOC_DRA7XX
+	{ .compatible = "ti,dra7-cm-core-aon", .data = &cm_data },
+	{ .compatible = "ti,dra7-cm-core", .data = &cm2_data },
+#endif
+#ifdef CONFIG_SOC_AM33XX
+	{ .compatible = "ti,am3-prcm", .data = &am3_prcm_data },
+#endif
+#ifdef CONFIG_SOC_AM43XX
+	{ .compatible = "ti,am4-prcm", .data = &am4_prcm_data },
+#endif
+#ifdef CONFIG_SOC_TI81XX
+	{ .compatible = "ti,dm814-prcm", .data = &am3_prcm_data },
+	{ .compatible = "ti,dm816-prcm", .data = &am3_prcm_data },
+#endif
+	{ }
+};
+
+/**
+ * omap2_cm_base_init - initialize iomappings for the CM drivers
+ *
+ * Detects and initializes the iomappings for the CM driver, based
+ * on the DT data. Returns 0 in success, negative error value
+ * otherwise.
+ */
+int __init omap2_cm_base_init(void)
+{
+	struct device_node *np;
+	const struct of_device_id *match;
+	struct omap_prcm_init_data *data;
+	struct resource res;
+	int ret;
+	struct omap_domain_base *mem = NULL;
+
+	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
+		data = (struct omap_prcm_init_data *)match->data;
+
+		ret = of_address_to_resource(np, 0, &res);
+		if (ret) {
+			of_node_put(np);
+			return ret;
+		}
+
+		if (data->index == TI_CLKM_CM)
+			mem = &cm_base;
+
+		if (data->index == TI_CLKM_CM2)
+			mem = &cm2_base;
+
+		data->mem = ioremap(res.start, resource_size(&res));
+
+		if (mem) {
+			mem->pa = res.start + data->offset;
+			mem->va = data->mem + data->offset;
+			mem->offset = data->offset;
+		}
+
+		data->np = np;
+
+		if (data->init && (data->flags & CM_SINGLE_INSTANCE ||
+				   (cm_base.va && cm2_base.va)))
+			data->init(data);
+	}
+
+	return 0;
+}
+
+/**
+ * omap_cm_init - low level init for the CM drivers
+ *
+ * Initializes the low level clock infrastructure for CM drivers.
+ * Returns 0 in success, negative error value in failure.
+ */
+int __init omap_cm_init(void)
+{
+	struct device_node *np;
+	const struct of_device_id *match;
+	const struct omap_prcm_init_data *data;
+	int ret;
+
+	for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
+		data = match->data;
+
+		if (data->flags & CM_NO_CLOCKS)
+			continue;
+
+		ret = omap2_clk_provider_init(np, data->index, NULL, data->mem);
+		if (ret) {
+			of_node_put(np);
+			return ret;
+		}
+	}
+
+	return 0;
+}