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, 683 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
new file mode 100644
index 000000000..d3667bfff
--- /dev/null
+++ b/drivers/acpi/acpica/utobject.c
@@ -0,0 +1,683 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/******************************************************************************
+ *
+ * Module Name: utobject - ACPI object create/delete/size/cache routines
+ *
+ * Copyright (C) 2000 - 2022, Intel Corp.
+ *
+ *****************************************************************************/
+
+#include <acpi/acpi.h>
+#include <linux/kmemleak.h>
+#include "accommon.h"
+#include "acnamesp.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utobject")
+
+/* Local prototypes */
+static acpi_status
+acpi_ut_get_simple_object_size(union acpi_operand_object *obj,
+			       acpi_size *obj_length);
+
+static acpi_status
+acpi_ut_get_package_object_size(union acpi_operand_object *obj,
+				acpi_size *obj_length);
+
+static acpi_status
+acpi_ut_get_element_length(u8 object_type,
+			   union acpi_operand_object *source_object,
+			   union acpi_generic_state *state, void *context);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_create_internal_object_dbg
+ *
+ * PARAMETERS:  module_name         - Source file name of caller
+ *              line_number         - Line number of caller
+ *              component_id        - Component type of caller
+ *              type                - ACPI Type of the new object
+ *
+ * RETURN:      A new internal object, null on failure
+ *
+ * DESCRIPTION: Create and initialize a new internal object.
+ *
+ * NOTE:        We always allocate the worst-case object descriptor because
+ *              these objects are cached, and we want them to be
+ *              one-size-satisfies-any-request. This in itself may not be
+ *              the most memory efficient, but the efficiency of the object
+ *              cache should more than make up for this!
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char
+							      *module_name,
+							      u32 line_number,
+							      u32 component_id,
+							      acpi_object_type
+							      type)
+{
+	union acpi_operand_object *object;
+	union acpi_operand_object *second_object;
+
+	ACPI_FUNCTION_TRACE_STR(ut_create_internal_object_dbg,
+				acpi_ut_get_type_name(type));
+
+	/* Allocate the raw object descriptor */
+
+	object =
+	    acpi_ut_allocate_object_desc_dbg(module_name, line_number,
+					     component_id);
+	if (!object) {
+		return_PTR(NULL);
+	}
+	kmemleak_not_leak(object);
+
+	switch (type) {
+	case ACPI_TYPE_REGION:
+	case ACPI_TYPE_BUFFER_FIELD:
+	case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+		/* These types require a secondary object */
+
+		second_object =
+		    acpi_ut_allocate_object_desc_dbg(module_name, line_number,
+						     component_id);
+		if (!second_object) {
+			acpi_ut_delete_object_desc(object);
+			return_PTR(NULL);
+		}
+
+		second_object->common.type = ACPI_TYPE_LOCAL_EXTRA;
+		second_object->common.reference_count = 1;
+
+		/* Link the second object to the first */
+
+		object->common.next_object = second_object;
+		break;
+
+	default:
+
+		/* All others have no secondary object */
+		break;
+	}
+
+	/* Save the object type in the object descriptor */
+
+	object->common.type = (u8) type;
+
+	/* Init the reference count */
+
+	object->common.reference_count = 1;
+
+	/* Any per-type initialization should go here */
+
+	return_PTR(object);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_create_package_object
+ *
+ * PARAMETERS:  count               - Number of package elements
+ *
+ * RETURN:      Pointer to a new Package object, null on failure
+ *
+ * DESCRIPTION: Create a fully initialized package object
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_package_object(u32 count)
+{
+	union acpi_operand_object *package_desc;
+	union acpi_operand_object **package_elements;
+
+	ACPI_FUNCTION_TRACE_U32(ut_create_package_object, count);
+
+	/* Create a new Package object */
+
+	package_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
+	if (!package_desc) {
+		return_PTR(NULL);
+	}
+
+	/*
+	 * Create the element array. Count+1 allows the array to be null
+	 * terminated.
+	 */
+	package_elements = ACPI_ALLOCATE_ZEROED(((acpi_size)count +
+						 1) * sizeof(void *));
+	if (!package_elements) {
+		ACPI_FREE(package_desc);
+		return_PTR(NULL);
+	}
+
+	package_desc->package.count = count;
+	package_desc->package.elements = package_elements;
+	return_PTR(package_desc);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_create_integer_object
+ *
+ * PARAMETERS:  initial_value       - Initial value for the integer
+ *
+ * RETURN:      Pointer to a new Integer object, null on failure
+ *
+ * DESCRIPTION: Create an initialized integer object
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_integer_object(u64 initial_value)
+{
+	union acpi_operand_object *integer_desc;
+
+	ACPI_FUNCTION_TRACE(ut_create_integer_object);
+
+	/* Create and initialize a new integer object */
+
+	integer_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+	if (!integer_desc) {
+		return_PTR(NULL);
+	}
+
+	integer_desc->integer.value = initial_value;
+	return_PTR(integer_desc);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_create_buffer_object
+ *
+ * PARAMETERS:  buffer_size            - Size of buffer to be created
+ *
+ * RETURN:      Pointer to a new Buffer object, null on failure
+ *
+ * DESCRIPTION: Create a fully initialized buffer object
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size)
+{
+	union acpi_operand_object *buffer_desc;
+	u8 *buffer = NULL;
+
+	ACPI_FUNCTION_TRACE_U32(ut_create_buffer_object, buffer_size);
+
+	/* Create a new Buffer object */
+
+	buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
+	if (!buffer_desc) {
+		return_PTR(NULL);
+	}
+
+	/* Create an actual buffer only if size > 0 */
+
+	if (buffer_size > 0) {
+
+		/* Allocate the actual buffer */
+
+		buffer = ACPI_ALLOCATE_ZEROED(buffer_size);
+		if (!buffer) {
+			ACPI_ERROR((AE_INFO, "Could not allocate size %u",
+				    (u32)buffer_size));
+
+			acpi_ut_remove_reference(buffer_desc);
+			return_PTR(NULL);
+		}
+	}
+
+	/* Complete buffer object initialization */
+
+	buffer_desc->buffer.flags |= AOPOBJ_DATA_VALID;
+	buffer_desc->buffer.pointer = buffer;
+	buffer_desc->buffer.length = (u32) buffer_size;
+
+	/* Return the new buffer descriptor */
+
+	return_PTR(buffer_desc);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_create_string_object
+ *
+ * PARAMETERS:  string_size         - Size of string to be created. Does not
+ *                                    include NULL terminator, this is added
+ *                                    automatically.
+ *
+ * RETURN:      Pointer to a new String object
+ *
+ * DESCRIPTION: Create a fully initialized string object
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size)
+{
+	union acpi_operand_object *string_desc;
+	char *string;
+
+	ACPI_FUNCTION_TRACE_U32(ut_create_string_object, string_size);
+
+	/* Create a new String object */
+
+	string_desc = acpi_ut_create_internal_object(ACPI_TYPE_STRING);
+	if (!string_desc) {
+		return_PTR(NULL);
+	}
+
+	/*
+	 * Allocate the actual string buffer -- (Size + 1) for NULL terminator.
+	 * NOTE: Zero-length strings are NULL terminated
+	 */
+	string = ACPI_ALLOCATE_ZEROED(string_size + 1);
+	if (!string) {
+		ACPI_ERROR((AE_INFO, "Could not allocate size %u",
+			    (u32)string_size));
+
+		acpi_ut_remove_reference(string_desc);
+		return_PTR(NULL);
+	}
+
+	/* Complete string object initialization */
+
+	string_desc->string.pointer = string;
+	string_desc->string.length = (u32) string_size;
+
+	/* Return the new string descriptor */
+
+	return_PTR(string_desc);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_valid_internal_object
+ *
+ * PARAMETERS:  object              - Object to be validated
+ *
+ * RETURN:      TRUE if object is valid, FALSE otherwise
+ *
+ * DESCRIPTION: Validate a pointer to be of type union acpi_operand_object
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_valid_internal_object(void *object)
+{
+
+	ACPI_FUNCTION_NAME(ut_valid_internal_object);
+
+	/* Check for a null pointer */
+
+	if (!object) {
+		ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "**** Null Object Ptr\n"));
+		return (FALSE);
+	}
+
+	/* Check the descriptor type field */
+
+	switch (ACPI_GET_DESCRIPTOR_TYPE(object)) {
+	case ACPI_DESC_TYPE_OPERAND:
+
+		/* The object appears to be a valid union acpi_operand_object */
+
+		return (TRUE);
+
+	default:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+				  "%p is not an ACPI operand obj [%s]\n",
+				  object, acpi_ut_get_descriptor_name(object)));
+		break;
+	}
+
+	return (FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_allocate_object_desc_dbg
+ *
+ * PARAMETERS:  module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              component_id        - Caller's component ID (for error output)
+ *
+ * RETURN:      Pointer to newly allocated object descriptor. Null on error
+ *
+ * DESCRIPTION: Allocate a new object descriptor. Gracefully handle
+ *              error conditions.
+ *
+ ******************************************************************************/
+
+void *acpi_ut_allocate_object_desc_dbg(const char *module_name,
+				       u32 line_number, u32 component_id)
+{
+	union acpi_operand_object *object;
+
+	ACPI_FUNCTION_TRACE(ut_allocate_object_desc_dbg);
+
+	object = acpi_os_acquire_object(acpi_gbl_operand_cache);
+	if (!object) {
+		ACPI_ERROR((module_name, line_number,
+			    "Could not allocate an object descriptor"));
+
+		return_PTR(NULL);
+	}
+
+	/* Mark the descriptor type */
+
+	ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND);
+
+	ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
+			  object, (u32) sizeof(union acpi_operand_object)));
+
+	return_PTR(object);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_delete_object_desc
+ *
+ * PARAMETERS:  object          - An Acpi internal object to be deleted
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Free an ACPI object descriptor or add it to the object cache
+ *
+ ******************************************************************************/
+
+void acpi_ut_delete_object_desc(union acpi_operand_object *object)
+{
+	ACPI_FUNCTION_TRACE_PTR(ut_delete_object_desc, object);
+
+	/* Object must be of type union acpi_operand_object */
+
+	if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) {
+		ACPI_ERROR((AE_INFO,
+			    "%p is not an ACPI Operand object [%s]", object,
+			    acpi_ut_get_descriptor_name(object)));
+		return_VOID;
+	}
+
+	(void)acpi_os_release_object(acpi_gbl_operand_cache, object);
+	return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_get_simple_object_size
+ *
+ * PARAMETERS:  internal_object    - An ACPI operand object
+ *              obj_length         - Where the length is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function is called to determine the space required to
+ *              contain a simple object for return to an external user.
+ *
+ *              The length includes the object structure plus any additional
+ *              needed space.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
+			       acpi_size *obj_length)
+{
+	acpi_size length;
+	acpi_size size;
+	acpi_status status = AE_OK;
+
+	ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);
+
+	/* Start with the length of the (external) Acpi object */
+
+	length = sizeof(union acpi_object);
+
+	/* A NULL object is allowed, can be a legal uninitialized package element */
+
+	if (!internal_object) {
+	/*
+		 * Object is NULL, just return the length of union acpi_object
+		 * (A NULL union acpi_object is an object of all zeroes.)
+	 */
+		*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
+		return_ACPI_STATUS(AE_OK);
+	}
+
+	/* A Namespace Node should never appear here */
+
+	if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {
+
+		/* A namespace node should never get here */
+
+		ACPI_ERROR((AE_INFO,
+			    "Received a namespace node [%4.4s] "
+			    "where an operand object is required",
+			    ACPI_CAST_PTR(struct acpi_namespace_node,
+					  internal_object)->name.ascii));
+		return_ACPI_STATUS(AE_AML_INTERNAL);
+	}
+
+	/*
+	 * The final length depends on the object type
+	 * Strings and Buffers are packed right up against the parent object and
+	 * must be accessed bytewise or there may be alignment problems on
+	 * certain processors
+	 */
+	switch (internal_object->common.type) {
+	case ACPI_TYPE_STRING:
+
+		length += (acpi_size)internal_object->string.length + 1;
+		break;
+
+	case ACPI_TYPE_BUFFER:
+
+		length += (acpi_size)internal_object->buffer.length;
+		break;
+
+	case ACPI_TYPE_INTEGER:
+	case ACPI_TYPE_PROCESSOR:
+	case ACPI_TYPE_POWER:
+
+		/* No extra data for these types */
+
+		break;
+
+	case ACPI_TYPE_LOCAL_REFERENCE:
+
+		switch (internal_object->reference.class) {
+		case ACPI_REFCLASS_NAME:
+			/*
+			 * Get the actual length of the full pathname to this object.
+			 * The reference will be converted to the pathname to the object
+			 */
+			size =
+			    acpi_ns_get_pathname_length(internal_object->
+							reference.node);
+			if (!size) {
+				return_ACPI_STATUS(AE_BAD_PARAMETER);
+			}
+
+			length += ACPI_ROUND_UP_TO_NATIVE_WORD(size);
+			break;
+
+		default:
+			/*
+			 * No other reference opcodes are supported.
+			 * Notably, Locals and Args are not supported, but this may be
+			 * required eventually.
+			 */
+			ACPI_ERROR((AE_INFO,
+				    "Cannot convert to external object - "
+				    "unsupported Reference Class [%s] 0x%X in object %p",
+				    acpi_ut_get_reference_name(internal_object),
+				    internal_object->reference.class,
+				    internal_object));
+			status = AE_TYPE;
+			break;
+		}
+		break;
+
+	default:
+
+		ACPI_ERROR((AE_INFO, "Cannot convert to external object - "
+			    "unsupported type [%s] 0x%X in object %p",
+			    acpi_ut_get_object_type_name(internal_object),
+			    internal_object->common.type, internal_object));
+		status = AE_TYPE;
+		break;
+	}
+
+	/*
+	 * Account for the space required by the object rounded up to the next
+	 * multiple of the machine word size. This keeps each object aligned
+	 * on a machine word boundary. (preventing alignment faults on some
+	 * machines.)
+	 */
+	*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_get_element_length
+ *
+ * PARAMETERS:  acpi_pkg_callback
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Get the length of one package element.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_get_element_length(u8 object_type,
+			   union acpi_operand_object *source_object,
+			   union acpi_generic_state *state, void *context)
+{
+	acpi_status status = AE_OK;
+	struct acpi_pkg_info *info = (struct acpi_pkg_info *)context;
+	acpi_size object_space;
+
+	switch (object_type) {
+	case ACPI_COPY_TYPE_SIMPLE:
+		/*
+		 * Simple object - just get the size (Null object/entry is handled
+		 * here also) and sum it into the running package length
+		 */
+		status =
+		    acpi_ut_get_simple_object_size(source_object,
+						   &object_space);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		info->length += object_space;
+		break;
+
+	case ACPI_COPY_TYPE_PACKAGE:
+
+		/* Package object - nothing much to do here, let the walk handle it */
+
+		info->num_packages++;
+		state->pkg.this_target_obj = NULL;
+		break;
+
+	default:
+
+		/* No other types allowed */
+
+		return (AE_BAD_PARAMETER);
+	}
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_get_package_object_size
+ *
+ * PARAMETERS:  internal_object     - An ACPI internal object
+ *              obj_length          - Where the length is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function is called to determine the space required to
+ *              contain a package object for return to an external user.
+ *
+ *              This is moderately complex since a package contains other
+ *              objects including packages.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
+				acpi_size *obj_length)
+{
+	acpi_status status;
+	struct acpi_pkg_info info;
+
+	ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object);
+
+	info.length = 0;
+	info.object_space = 0;
+	info.num_packages = 1;
+
+	status =
+	    acpi_ut_walk_package_tree(internal_object, NULL,
+				      acpi_ut_get_element_length, &info);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/*
+	 * We have handled all of the objects in all levels of the package.
+	 * just add the length of the package objects themselves.
+	 * Round up to the next machine word.
+	 */
+	info.length +=
+	    ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) *
+	    (acpi_size)info.num_packages;
+
+	/* Return the total package length */
+
+	*obj_length = info.length;
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_get_object_size
+ *
+ * PARAMETERS:  internal_object     - An ACPI internal object
+ *              obj_length          - Where the length will be returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function is called to determine the space required to
+ *              contain an object for return to an API user.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_get_object_size(union acpi_operand_object *internal_object,
+			acpi_size *obj_length)
+{
+	acpi_status status;
+
+	ACPI_FUNCTION_ENTRY();
+
+	if ((ACPI_GET_DESCRIPTOR_TYPE(internal_object) ==
+	     ACPI_DESC_TYPE_OPERAND) &&
+	    (internal_object->common.type == ACPI_TYPE_PACKAGE)) {
+		status =
+		    acpi_ut_get_package_object_size(internal_object,
+						    obj_length);
+	} else {
+		status =
+		    acpi_ut_get_simple_object_size(internal_object, obj_length);
+	}
+
+	return (status);
+}