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, 596 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
new file mode 100644
index 000000000..9f6573646
--- /dev/null
+++ b/drivers/acpi/acpica/dswload.c
@@ -0,0 +1,596 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/******************************************************************************
+ *
+ * Module Name: dswload - Dispatcher first pass namespace load callbacks
+ *
+ * Copyright (C) 2000 - 2022, Intel Corp.
+ *
+ *****************************************************************************/
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#ifdef ACPI_ASL_COMPILER
+#include "acdisasm.h"
+#endif
+
+#define _COMPONENT          ACPI_DISPATCHER
+ACPI_MODULE_NAME("dswload")
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ds_init_callbacks
+ *
+ * PARAMETERS:  walk_state      - Current state of the parse tree walk
+ *              pass_number     - 1, 2, or 3
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Init walk state callbacks
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number)
+{
+
+	switch (pass_number) {
+	case 0:
+
+		/* Parse only - caller will setup callbacks */
+
+		walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 |
+		    ACPI_PARSE_DELETE_TREE | ACPI_PARSE_DISASSEMBLE;
+		walk_state->descending_callback = NULL;
+		walk_state->ascending_callback = NULL;
+		break;
+
+	case 1:
+
+		/* Load pass 1 */
+
+		walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 |
+		    ACPI_PARSE_DELETE_TREE;
+		walk_state->descending_callback = acpi_ds_load1_begin_op;
+		walk_state->ascending_callback = acpi_ds_load1_end_op;
+		break;
+
+	case 2:
+
+		/* Load pass 2 */
+
+		walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 |
+		    ACPI_PARSE_DELETE_TREE;
+		walk_state->descending_callback = acpi_ds_load2_begin_op;
+		walk_state->ascending_callback = acpi_ds_load2_end_op;
+		break;
+
+	case 3:
+
+		/* Execution pass */
+
+		walk_state->parse_flags |= ACPI_PARSE_EXECUTE |
+		    ACPI_PARSE_DELETE_TREE;
+		walk_state->descending_callback = acpi_ds_exec_begin_op;
+		walk_state->ascending_callback = acpi_ds_exec_end_op;
+		break;
+
+	default:
+
+		return (AE_BAD_PARAMETER);
+	}
+
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ds_load1_begin_op
+ *
+ * PARAMETERS:  walk_state      - Current state of the parse tree walk
+ *              out_op          - Where to return op if a new one is created
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Descending callback used during the loading of ACPI tables.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_load1_begin_op(struct acpi_walk_state *walk_state,
+		       union acpi_parse_object **out_op)
+{
+	union acpi_parse_object *op;
+	struct acpi_namespace_node *node;
+	acpi_status status;
+	acpi_object_type object_type;
+	char *path;
+	u32 flags;
+
+	ACPI_FUNCTION_TRACE_PTR(ds_load1_begin_op, walk_state->op);
+
+	op = walk_state->op;
+	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
+			  walk_state));
+
+	/* We are only interested in opcodes that have an associated name */
+
+	if (op) {
+		if (!(walk_state->op_info->flags & AML_NAMED)) {
+			*out_op = op;
+			return_ACPI_STATUS(AE_OK);
+		}
+
+		/* Check if this object has already been installed in the namespace */
+
+		if (op->common.node) {
+			*out_op = op;
+			return_ACPI_STATUS(AE_OK);
+		}
+	}
+
+	path = acpi_ps_get_next_namestring(&walk_state->parser_state);
+
+	/* Map the raw opcode into an internal object type */
+
+	object_type = walk_state->op_info->object_type;
+
+	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+			  "State=%p Op=%p [%s]\n", walk_state, op,
+			  acpi_ut_get_type_name(object_type)));
+
+	switch (walk_state->opcode) {
+	case AML_SCOPE_OP:
+		/*
+		 * The target name of the Scope() operator must exist at this point so
+		 * that we can actually open the scope to enter new names underneath it.
+		 * Allow search-to-root for single namesegs.
+		 */
+		status =
+		    acpi_ns_lookup(walk_state->scope_info, path, object_type,
+				   ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
+				   walk_state, &(node));
+#ifdef ACPI_ASL_COMPILER
+		if (status == AE_NOT_FOUND) {
+			/*
+			 * Table disassembly:
+			 * Target of Scope() not found. Generate an External for it, and
+			 * insert the name into the namespace.
+			 */
+			acpi_dm_add_op_to_external_list(op, path,
+							ACPI_TYPE_DEVICE, 0, 0);
+			status =
+			    acpi_ns_lookup(walk_state->scope_info, path,
+					   object_type, ACPI_IMODE_LOAD_PASS1,
+					   ACPI_NS_SEARCH_PARENT, walk_state,
+					   &node);
+		}
+#endif
+		if (ACPI_FAILURE(status)) {
+			ACPI_ERROR_NAMESPACE(walk_state->scope_info, path,
+					     status);
+			return_ACPI_STATUS(status);
+		}
+
+		/*
+		 * Check to make sure that the target is
+		 * one of the opcodes that actually opens a scope
+		 */
+		switch (node->type) {
+		case ACPI_TYPE_ANY:
+		case ACPI_TYPE_LOCAL_SCOPE:	/* Scope  */
+		case ACPI_TYPE_DEVICE:
+		case ACPI_TYPE_POWER:
+		case ACPI_TYPE_PROCESSOR:
+		case ACPI_TYPE_THERMAL:
+
+			/* These are acceptable types */
+			break;
+
+		case ACPI_TYPE_INTEGER:
+		case ACPI_TYPE_STRING:
+		case ACPI_TYPE_BUFFER:
+			/*
+			 * These types we will allow, but we will change the type.
+			 * This enables some existing code of the form:
+			 *
+			 *  Name (DEB, 0)
+			 *  Scope (DEB) { ... }
+			 *
+			 * Note: silently change the type here. On the second pass,
+			 * we will report a warning
+			 */
+			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+					  "Type override - [%4.4s] had invalid type (%s) "
+					  "for Scope operator, changed to type ANY\n",
+					  acpi_ut_get_node_name(node),
+					  acpi_ut_get_type_name(node->type)));
+
+			node->type = ACPI_TYPE_ANY;
+			walk_state->scope_info->common.value = ACPI_TYPE_ANY;
+			break;
+
+		case ACPI_TYPE_METHOD:
+			/*
+			 * Allow scope change to root during execution of module-level
+			 * code. Root is typed METHOD during this time.
+			 */
+			if ((node == acpi_gbl_root_node) &&
+			    (walk_state->
+			     parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
+				break;
+			}
+
+			ACPI_FALLTHROUGH;
+
+		default:
+
+			/* All other types are an error */
+
+			ACPI_ERROR((AE_INFO,
+				    "Invalid type (%s) for target of "
+				    "Scope operator [%4.4s] (Cannot override)",
+				    acpi_ut_get_type_name(node->type),
+				    acpi_ut_get_node_name(node)));
+
+			return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+		}
+		break;
+
+	default:
+		/*
+		 * For all other named opcodes, we will enter the name into
+		 * the namespace.
+		 *
+		 * Setup the search flags.
+		 * Since we are entering a name into the namespace, we do not want to
+		 * enable the search-to-root upsearch.
+		 *
+		 * There are only two conditions where it is acceptable that the name
+		 * already exists:
+		 *    1) the Scope() operator can reopen a scoping object that was
+		 *       previously defined (Scope, Method, Device, etc.)
+		 *    2) Whenever we are parsing a deferred opcode (op_region, Buffer,
+		 *       buffer_field, or Package), the name of the object is already
+		 *       in the namespace.
+		 */
+		if (walk_state->deferred_node) {
+
+			/* This name is already in the namespace, get the node */
+
+			node = walk_state->deferred_node;
+			status = AE_OK;
+			break;
+		}
+
+		/*
+		 * If we are executing a method, do not create any namespace objects
+		 * during the load phase, only during execution.
+		 */
+		if (walk_state->method_node) {
+			node = NULL;
+			status = AE_OK;
+			break;
+		}
+
+		flags = ACPI_NS_NO_UPSEARCH;
+		if ((walk_state->opcode != AML_SCOPE_OP) &&
+		    (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) {
+			if (walk_state->namespace_override) {
+				flags |= ACPI_NS_OVERRIDE_IF_FOUND;
+				ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+						  "[%s] Override allowed\n",
+						  acpi_ut_get_type_name
+						  (object_type)));
+			} else {
+				flags |= ACPI_NS_ERROR_IF_FOUND;
+				ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+						  "[%s] Cannot already exist\n",
+						  acpi_ut_get_type_name
+						  (object_type)));
+			}
+		} else {
+			ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+					  "[%s] Both Find or Create allowed\n",
+					  acpi_ut_get_type_name(object_type)));
+		}
+
+		/*
+		 * Enter the named type into the internal namespace. We enter the name
+		 * as we go downward in the parse tree. Any necessary subobjects that
+		 * involve arguments to the opcode must be created as we go back up the
+		 * parse tree later.
+		 */
+		status =
+		    acpi_ns_lookup(walk_state->scope_info, path, object_type,
+				   ACPI_IMODE_LOAD_PASS1, flags, walk_state,
+				   &node);
+		if (ACPI_FAILURE(status)) {
+			if (status == AE_ALREADY_EXISTS) {
+
+				/* The name already exists in this scope */
+
+				if (node->flags & ANOBJ_IS_EXTERNAL) {
+					/*
+					 * Allow one create on an object or segment that was
+					 * previously declared External
+					 */
+					node->flags &= ~ANOBJ_IS_EXTERNAL;
+					node->type = (u8) object_type;
+
+					/* Just retyped a node, probably will need to open a scope */
+
+					if (acpi_ns_opens_scope(object_type)) {
+						status =
+						    acpi_ds_scope_stack_push
+						    (node, object_type,
+						     walk_state);
+						if (ACPI_FAILURE(status)) {
+							return_ACPI_STATUS
+							    (status);
+						}
+					}
+
+					status = AE_OK;
+				}
+			}
+
+			if (ACPI_FAILURE(status)) {
+				ACPI_ERROR_NAMESPACE(walk_state->scope_info,
+						     path, status);
+				return_ACPI_STATUS(status);
+			}
+		}
+		break;
+	}
+
+	/* Common exit */
+
+	if (!op) {
+
+		/* Create a new op */
+
+		op = acpi_ps_alloc_op(walk_state->opcode, walk_state->aml);
+		if (!op) {
+			return_ACPI_STATUS(AE_NO_MEMORY);
+		}
+	}
+
+	/* Initialize the op */
+
+#ifdef ACPI_CONSTANT_EVAL_ONLY
+	op->named.path = path;
+#endif
+
+	if (node) {
+		/*
+		 * Put the Node in the "op" object that the parser uses, so we
+		 * can get it again quickly when this scope is closed
+		 */
+		op->common.node = node;
+		op->named.name = node->name.integer;
+	}
+
+	acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state->parser_state),
+			   op);
+	*out_op = op;
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ds_load1_end_op
+ *
+ * PARAMETERS:  walk_state      - Current state of the parse tree walk
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Ascending callback used during the loading of the namespace,
+ *              both control methods and everything else.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
+{
+	union acpi_parse_object *op;
+	acpi_object_type object_type;
+	acpi_status status = AE_OK;
+#ifdef ACPI_ASL_COMPILER
+	u8 param_count;
+#endif
+
+	ACPI_FUNCTION_TRACE(ds_load1_end_op);
+
+	op = walk_state->op;
+	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
+			  walk_state));
+
+	/*
+	 * Disassembler: handle create field operators here.
+	 *
+	 * create_buffer_field is a deferred op that is typically processed in load
+	 * pass 2. However, disassembly of control method contents walk the parse
+	 * tree with ACPI_PARSE_LOAD_PASS1 and AML_CREATE operators are processed
+	 * in a later walk. This is a problem when there is a control method that
+	 * has the same name as the AML_CREATE object. In this case, any use of the
+	 * name segment will be detected as a method call rather than a reference
+	 * to a buffer field.
+	 *
+	 * This earlier creation during disassembly solves this issue by inserting
+	 * the named object in the ACPI namespace so that references to this name
+	 * would be a name string rather than a method call.
+	 */
+	if ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) &&
+	    (walk_state->op_info->flags & AML_CREATE)) {
+		status = acpi_ds_create_buffer_field(op, walk_state);
+		return_ACPI_STATUS(status);
+	}
+
+	/* We are only interested in opcodes that have an associated name */
+
+	if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) {
+		return_ACPI_STATUS(AE_OK);
+	}
+
+	/* Get the object type to determine if we should pop the scope */
+
+	object_type = walk_state->op_info->object_type;
+
+	if (walk_state->op_info->flags & AML_FIELD) {
+		/*
+		 * If we are executing a method, do not create any namespace objects
+		 * during the load phase, only during execution.
+		 */
+		if (!walk_state->method_node) {
+			if (walk_state->opcode == AML_FIELD_OP ||
+			    walk_state->opcode == AML_BANK_FIELD_OP ||
+			    walk_state->opcode == AML_INDEX_FIELD_OP) {
+				status =
+				    acpi_ds_init_field_objects(op, walk_state);
+			}
+		}
+		return_ACPI_STATUS(status);
+	}
+
+	/*
+	 * If we are executing a method, do not create any namespace objects
+	 * during the load phase, only during execution.
+	 */
+	if (!walk_state->method_node) {
+		if (op->common.aml_opcode == AML_REGION_OP) {
+			status =
+			    acpi_ex_create_region(op->named.data,
+						  op->named.length,
+						  (acpi_adr_space_type)
+						  ((op->common.value.arg)->
+						   common.value.integer),
+						  walk_state);
+			if (ACPI_FAILURE(status)) {
+				return_ACPI_STATUS(status);
+			}
+		} else if (op->common.aml_opcode == AML_DATA_REGION_OP) {
+			status =
+			    acpi_ex_create_region(op->named.data,
+						  op->named.length,
+						  ACPI_ADR_SPACE_DATA_TABLE,
+						  walk_state);
+			if (ACPI_FAILURE(status)) {
+				return_ACPI_STATUS(status);
+			}
+		}
+	}
+
+	if (op->common.aml_opcode == AML_NAME_OP) {
+
+		/* For Name opcode, get the object type from the argument */
+
+		if (op->common.value.arg) {
+			object_type = (acpi_ps_get_opcode_info((op->common.
+								value.arg)->
+							       common.
+							       aml_opcode))->
+			    object_type;
+
+			/* Set node type if we have a namespace node */
+
+			if (op->common.node) {
+				op->common.node->type = (u8) object_type;
+			}
+		}
+	}
+#ifdef ACPI_ASL_COMPILER
+	/*
+	 * For external opcode, get the object type from the argument and
+	 * get the parameter count from the argument's next.
+	 */
+	if (acpi_gbl_disasm_flag &&
+	    op->common.node && op->common.aml_opcode == AML_EXTERNAL_OP) {
+		/*
+		 * Note, if this external is not a method
+		 * Op->Common.Value.Arg->Common.Next->Common.Value.Integer == 0
+		 * Therefore, param_count will be 0.
+		 */
+		param_count =
+		    (u8)op->common.value.arg->common.next->common.value.integer;
+		object_type = (u8)op->common.value.arg->common.value.integer;
+		op->common.node->flags |= ANOBJ_IS_EXTERNAL;
+		op->common.node->type = (u8)object_type;
+
+		acpi_dm_create_subobject_for_external((u8)object_type,
+						      &op->common.node,
+						      param_count);
+
+		/*
+		 * Add the external to the external list because we may be
+		 * emitting code based off of the items within the external list.
+		 */
+		acpi_dm_add_op_to_external_list(op, op->named.path,
+						(u8)object_type, param_count,
+						ACPI_EXT_ORIGIN_FROM_OPCODE |
+						ACPI_EXT_RESOLVED_REFERENCE);
+	}
+#endif
+
+	/*
+	 * If we are executing a method, do not create any namespace objects
+	 * during the load phase, only during execution.
+	 */
+	if (!walk_state->method_node) {
+		if (op->common.aml_opcode == AML_METHOD_OP) {
+			/*
+			 * method_op pkg_length name_string method_flags term_list
+			 *
+			 * Note: We must create the method node/object pair as soon as we
+			 * see the method declaration. This allows later pass1 parsing
+			 * of invocations of the method (need to know the number of
+			 * arguments.)
+			 */
+			ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+					  "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
+					  walk_state, op, op->named.node));
+
+			if (!acpi_ns_get_attached_object(op->named.node)) {
+				walk_state->operands[0] =
+				    ACPI_CAST_PTR(void, op->named.node);
+				walk_state->num_operands = 1;
+
+				status =
+				    acpi_ds_create_operands(walk_state,
+							    op->common.value.
+							    arg);
+				if (ACPI_SUCCESS(status)) {
+					status =
+					    acpi_ex_create_method(op->named.
+								  data,
+								  op->named.
+								  length,
+								  walk_state);
+				}
+
+				walk_state->operands[0] = NULL;
+				walk_state->num_operands = 0;
+
+				if (ACPI_FAILURE(status)) {
+					return_ACPI_STATUS(status);
+				}
+			}
+		}
+	}
+
+	/* Pop the scope stack (only if loading a table) */
+
+	if (!walk_state->method_node &&
+	    op->common.aml_opcode != AML_EXTERNAL_OP &&
+	    acpi_ns_opens_scope(object_type)) {
+		ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+				  "(%s): Popping scope for Op %p\n",
+				  acpi_ut_get_type_name(object_type), op));
+
+		status = acpi_ds_scope_stack_pop(walk_state);
+	}
+
+	return_ACPI_STATUS(status);
+}