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, 742 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
new file mode 100644
index 000000000..8d7736d2d
--- /dev/null
+++ b/drivers/acpi/acpica/utdelete.c
@@ -0,0 +1,742 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/*******************************************************************************
+ *
+ * Module Name: utdelete - object deletion and reference count utilities
+ *
+ ******************************************************************************/
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "acevents.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utdelete")
+
+/* Local prototypes */
+static void acpi_ut_delete_internal_obj(union acpi_operand_object *object);
+
+static void
+acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_delete_internal_obj
+ *
+ * PARAMETERS:  object         - Object to be deleted
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Low level object deletion, after reference counts have been
+ *              updated (All reference counts, including sub-objects!)
+ *
+ ******************************************************************************/
+
+static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
+{
+	void *obj_pointer = NULL;
+	union acpi_operand_object *handler_desc;
+	union acpi_operand_object *second_desc;
+	union acpi_operand_object *next_desc;
+	union acpi_operand_object *start_desc;
+	union acpi_operand_object **last_obj_ptr;
+
+	ACPI_FUNCTION_TRACE_PTR(ut_delete_internal_obj, object);
+
+	if (!object) {
+		return_VOID;
+	}
+
+	/*
+	 * Must delete or free any pointers within the object that are not
+	 * actual ACPI objects (for example, a raw buffer pointer).
+	 */
+	switch (object->common.type) {
+	case ACPI_TYPE_STRING:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "**** String %p, ptr %p\n", object,
+				  object->string.pointer));
+
+		/* Free the actual string buffer */
+
+		if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) {
+
+			/* But only if it is NOT a pointer into an ACPI table */
+
+			obj_pointer = object->string.pointer;
+		}
+		break;
+
+	case ACPI_TYPE_BUFFER:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "**** Buffer %p, ptr %p\n", object,
+				  object->buffer.pointer));
+
+		/* Free the actual buffer */
+
+		if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) {
+
+			/* But only if it is NOT a pointer into an ACPI table */
+
+			obj_pointer = object->buffer.pointer;
+		}
+		break;
+
+	case ACPI_TYPE_PACKAGE:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  " **** Package of count %X\n",
+				  object->package.count));
+
+		/*
+		 * Elements of the package are not handled here, they are deleted
+		 * separately
+		 */
+
+		/* Free the (variable length) element pointer array */
+
+		obj_pointer = object->package.elements;
+		break;
+
+		/*
+		 * These objects have a possible list of notify handlers.
+		 * Device object also may have a GPE block.
+		 */
+	case ACPI_TYPE_DEVICE:
+
+		if (object->device.gpe_block) {
+			(void)acpi_ev_delete_gpe_block(object->device.
+						       gpe_block);
+		}
+
+		ACPI_FALLTHROUGH;
+
+	case ACPI_TYPE_PROCESSOR:
+	case ACPI_TYPE_THERMAL:
+
+		/* Walk the address handler list for this object */
+
+		handler_desc = object->common_notify.handler;
+		while (handler_desc) {
+			next_desc = handler_desc->address_space.next;
+			acpi_ut_remove_reference(handler_desc);
+			handler_desc = next_desc;
+		}
+		break;
+
+	case ACPI_TYPE_MUTEX:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "***** Mutex %p, OS Mutex %p\n",
+				  object, object->mutex.os_mutex));
+
+		if (object == acpi_gbl_global_lock_mutex) {
+
+			/* Global Lock has extra semaphore */
+
+			(void)
+			    acpi_os_delete_semaphore
+			    (acpi_gbl_global_lock_semaphore);
+			acpi_gbl_global_lock_semaphore = NULL;
+
+			acpi_os_delete_mutex(object->mutex.os_mutex);
+			acpi_gbl_global_lock_mutex = NULL;
+		} else {
+			acpi_ex_unlink_mutex(object);
+			acpi_os_delete_mutex(object->mutex.os_mutex);
+		}
+		break;
+
+	case ACPI_TYPE_EVENT:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "***** Event %p, OS Semaphore %p\n",
+				  object, object->event.os_semaphore));
+
+		(void)acpi_os_delete_semaphore(object->event.os_semaphore);
+		object->event.os_semaphore = NULL;
+		break;
+
+	case ACPI_TYPE_METHOD:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "***** Method %p\n", object));
+
+		/* Delete the method mutex if it exists */
+
+		if (object->method.mutex) {
+			acpi_os_delete_mutex(object->method.mutex->mutex.
+					     os_mutex);
+			acpi_ut_delete_object_desc(object->method.mutex);
+			object->method.mutex = NULL;
+		}
+
+		if (object->method.node) {
+			object->method.node = NULL;
+		}
+		break;
+
+	case ACPI_TYPE_REGION:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "***** Region %p\n", object));
+
+		/*
+		 * Update address_range list. However, only permanent regions
+		 * are installed in this list. (Not created within a method)
+		 */
+		if (!(object->region.node->flags & ANOBJ_TEMPORARY)) {
+			acpi_ut_remove_address_range(object->region.space_id,
+						     object->region.node);
+		}
+
+		second_desc = acpi_ns_get_secondary_object(object);
+		if (second_desc) {
+			/*
+			 * Free the region_context if and only if the handler is one of the
+			 * default handlers -- and therefore, we created the context object
+			 * locally, it was not created by an external caller.
+			 */
+			handler_desc = object->region.handler;
+			if (handler_desc) {
+				next_desc =
+				    handler_desc->address_space.region_list;
+				start_desc = next_desc;
+				last_obj_ptr =
+				    &handler_desc->address_space.region_list;
+
+				/* Remove the region object from the handler list */
+
+				while (next_desc) {
+					if (next_desc == object) {
+						*last_obj_ptr =
+						    next_desc->region.next;
+						break;
+					}
+
+					/* Walk the linked list of handlers */
+
+					last_obj_ptr = &next_desc->region.next;
+					next_desc = next_desc->region.next;
+
+					/* Prevent infinite loop if list is corrupted */
+
+					if (next_desc == start_desc) {
+						ACPI_ERROR((AE_INFO,
+							    "Circular region list in address handler object %p",
+							    handler_desc));
+						return_VOID;
+					}
+				}
+
+				if (handler_desc->address_space.handler_flags &
+				    ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) {
+
+					/* Deactivate region and free region context */
+
+					if (handler_desc->address_space.setup) {
+						(void)handler_desc->
+						    address_space.setup(object,
+									ACPI_REGION_DEACTIVATE,
+									handler_desc->
+									address_space.
+									context,
+									&second_desc->
+									extra.
+									region_context);
+					}
+				}
+
+				acpi_ut_remove_reference(handler_desc);
+			}
+
+			/* Now we can free the Extra object */
+
+			acpi_ut_delete_object_desc(second_desc);
+		}
+		if (object->field.internal_pcc_buffer) {
+			ACPI_FREE(object->field.internal_pcc_buffer);
+		}
+
+		break;
+
+	case ACPI_TYPE_BUFFER_FIELD:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "***** Buffer Field %p\n", object));
+
+		second_desc = acpi_ns_get_secondary_object(object);
+		if (second_desc) {
+			acpi_ut_delete_object_desc(second_desc);
+		}
+		break;
+
+	case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "***** Bank Field %p\n", object));
+
+		second_desc = acpi_ns_get_secondary_object(object);
+		if (second_desc) {
+			acpi_ut_delete_object_desc(second_desc);
+		}
+		break;
+
+	case ACPI_TYPE_LOCAL_ADDRESS_HANDLER:
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "***** Address handler %p\n", object));
+
+		acpi_os_delete_mutex(object->address_space.context_mutex);
+		break;
+
+	default:
+
+		break;
+	}
+
+	/* Free any allocated memory (pointer within the object) found above */
+
+	if (obj_pointer) {
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "Deleting Object Subptr %p\n", obj_pointer));
+		ACPI_FREE(obj_pointer);
+	}
+
+	/* Now the object can be safely deleted */
+
+	ACPI_DEBUG_PRINT_RAW((ACPI_DB_ALLOCATIONS,
+			      "%s: Deleting Object %p [%s]\n",
+			      ACPI_GET_FUNCTION_NAME, object,
+			      acpi_ut_get_object_type_name(object)));
+
+	acpi_ut_delete_object_desc(object);
+	return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_delete_internal_object_list
+ *
+ * PARAMETERS:  obj_list        - Pointer to the list to be deleted
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: This function deletes an internal object list, including both
+ *              simple objects and package objects
+ *
+ ******************************************************************************/
+
+void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list)
+{
+	union acpi_operand_object **internal_obj;
+
+	ACPI_FUNCTION_ENTRY();
+
+	/* Walk the null-terminated internal list */
+
+	for (internal_obj = obj_list; *internal_obj; internal_obj++) {
+		acpi_ut_remove_reference(*internal_obj);
+	}
+
+	/* Free the combined parameter pointer list and object array */
+
+	ACPI_FREE(obj_list);
+	return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_update_ref_count
+ *
+ * PARAMETERS:  object          - Object whose ref count is to be updated
+ *              action          - What to do (REF_INCREMENT or REF_DECREMENT)
+ *
+ * RETURN:      None. Sets new reference count within the object
+ *
+ * DESCRIPTION: Modify the reference count for an internal acpi object
+ *
+ ******************************************************************************/
+
+static void
+acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
+{
+	u16 original_count;
+	u16 new_count = 0;
+	acpi_cpu_flags lock_flags;
+	char *message;
+
+	ACPI_FUNCTION_NAME(ut_update_ref_count);
+
+	if (!object) {
+		return;
+	}
+
+	/*
+	 * Always get the reference count lock. Note: Interpreter and/or
+	 * Namespace is not always locked when this function is called.
+	 */
+	lock_flags = acpi_os_acquire_lock(acpi_gbl_reference_count_lock);
+	original_count = object->common.reference_count;
+
+	/* Perform the reference count action (increment, decrement) */
+
+	switch (action) {
+	case REF_INCREMENT:
+
+		new_count = original_count + 1;
+		object->common.reference_count = new_count;
+		acpi_os_release_lock(acpi_gbl_reference_count_lock, lock_flags);
+
+		/* The current reference count should never be zero here */
+
+		if (!original_count) {
+			ACPI_WARNING((AE_INFO,
+				      "Obj %p, Reference Count was zero before increment\n",
+				      object));
+		}
+
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "Obj %p Type %.2X [%s] Refs %.2X [Incremented]\n",
+				  object, object->common.type,
+				  acpi_ut_get_object_type_name(object),
+				  new_count));
+		message = "Incremement";
+		break;
+
+	case REF_DECREMENT:
+
+		/* The current reference count must be non-zero */
+
+		if (original_count) {
+			new_count = original_count - 1;
+			object->common.reference_count = new_count;
+		}
+
+		acpi_os_release_lock(acpi_gbl_reference_count_lock, lock_flags);
+
+		if (!original_count) {
+			ACPI_WARNING((AE_INFO,
+				      "Obj %p, Reference Count is already zero, cannot decrement\n",
+				      object));
+			return;
+		}
+
+		ACPI_DEBUG_PRINT_RAW((ACPI_DB_ALLOCATIONS,
+				      "%s: Obj %p Type %.2X Refs %.2X [Decremented]\n",
+				      ACPI_GET_FUNCTION_NAME, object,
+				      object->common.type, new_count));
+
+		/* Actually delete the object on a reference count of zero */
+
+		if (new_count == 0) {
+			acpi_ut_delete_internal_obj(object);
+		}
+		message = "Decrement";
+		break;
+
+	default:
+
+		acpi_os_release_lock(acpi_gbl_reference_count_lock, lock_flags);
+		ACPI_ERROR((AE_INFO, "Unknown Reference Count action (0x%X)",
+			    action));
+		return;
+	}
+
+	/*
+	 * Sanity check the reference count, for debug purposes only.
+	 * (A deleted object will have a huge reference count)
+	 */
+	if (new_count > ACPI_MAX_REFERENCE_COUNT) {
+		ACPI_WARNING((AE_INFO,
+			      "Large Reference Count (0x%X) in object %p, Type=0x%.2X Operation=%s",
+			      new_count, object, object->common.type, message));
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_update_object_reference
+ *
+ * PARAMETERS:  object              - Increment or decrement the ref count for
+ *                                    this object and all sub-objects
+ *              action              - Either REF_INCREMENT or REF_DECREMENT
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Increment or decrement the object reference count
+ *
+ * Object references are incremented when:
+ * 1) An object is attached to a Node (namespace object)
+ * 2) An object is copied (all subobjects must be incremented)
+ *
+ * Object references are decremented when:
+ * 1) An object is detached from an Node
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
+{
+	acpi_status status = AE_OK;
+	union acpi_generic_state *state_list = NULL;
+	union acpi_operand_object *next_object = NULL;
+	union acpi_operand_object *prev_object;
+	union acpi_generic_state *state;
+	u32 i;
+
+	ACPI_FUNCTION_NAME(ut_update_object_reference);
+
+	while (object) {
+
+		/* Make sure that this isn't a namespace handle */
+
+		if (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) {
+			ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+					  "Object %p is NS handle\n", object));
+			return (AE_OK);
+		}
+
+		/*
+		 * All sub-objects must have their reference count updated
+		 * also. Different object types have different subobjects.
+		 */
+		switch (object->common.type) {
+		case ACPI_TYPE_DEVICE:
+		case ACPI_TYPE_PROCESSOR:
+		case ACPI_TYPE_POWER:
+		case ACPI_TYPE_THERMAL:
+			/*
+			 * Update the notify objects for these types (if present)
+			 * Two lists, system and device notify handlers.
+			 */
+			for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) {
+				prev_object =
+				    object->common_notify.notify_list[i];
+				while (prev_object) {
+					next_object =
+					    prev_object->notify.next[i];
+					acpi_ut_update_ref_count(prev_object,
+								 action);
+					prev_object = next_object;
+				}
+			}
+			break;
+
+		case ACPI_TYPE_PACKAGE:
+			/*
+			 * We must update all the sub-objects of the package,
+			 * each of whom may have their own sub-objects.
+			 */
+			for (i = 0; i < object->package.count; i++) {
+				/*
+				 * Null package elements are legal and can be simply
+				 * ignored.
+				 */
+				next_object = object->package.elements[i];
+				if (!next_object) {
+					continue;
+				}
+
+				switch (next_object->common.type) {
+				case ACPI_TYPE_INTEGER:
+				case ACPI_TYPE_STRING:
+				case ACPI_TYPE_BUFFER:
+					/*
+					 * For these very simple sub-objects, we can just
+					 * update the reference count here and continue.
+					 * Greatly increases performance of this operation.
+					 */
+					acpi_ut_update_ref_count(next_object,
+								 action);
+					break;
+
+				default:
+					/*
+					 * For complex sub-objects, push them onto the stack
+					 * for later processing (this eliminates recursion.)
+					 */
+					status =
+					    acpi_ut_create_update_state_and_push
+					    (next_object, action, &state_list);
+					if (ACPI_FAILURE(status)) {
+						goto error_exit;
+					}
+					break;
+				}
+			}
+
+			next_object = NULL;
+			break;
+
+		case ACPI_TYPE_BUFFER_FIELD:
+
+			next_object = object->buffer_field.buffer_obj;
+			break;
+
+		case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+			next_object = object->bank_field.bank_obj;
+			status =
+			    acpi_ut_create_update_state_and_push(object->
+								 bank_field.
+								 region_obj,
+								 action,
+								 &state_list);
+			if (ACPI_FAILURE(status)) {
+				goto error_exit;
+			}
+			break;
+
+		case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+			next_object = object->index_field.index_obj;
+			status =
+			    acpi_ut_create_update_state_and_push(object->
+								 index_field.
+								 data_obj,
+								 action,
+								 &state_list);
+			if (ACPI_FAILURE(status)) {
+				goto error_exit;
+			}
+			break;
+
+		case ACPI_TYPE_LOCAL_REFERENCE:
+			/*
+			 * The target of an Index (a package, string, or buffer) or a named
+			 * reference must track changes to the ref count of the index or
+			 * target object.
+			 */
+			if ((object->reference.class == ACPI_REFCLASS_INDEX) ||
+			    (object->reference.class == ACPI_REFCLASS_NAME)) {
+				next_object = object->reference.object;
+			}
+			break;
+
+		case ACPI_TYPE_LOCAL_REGION_FIELD:
+		case ACPI_TYPE_REGION:
+		default:
+
+			break;	/* No subobjects for all other types */
+		}
+
+		/*
+		 * Now we can update the count in the main object. This can only
+		 * happen after we update the sub-objects in case this causes the
+		 * main object to be deleted.
+		 */
+		acpi_ut_update_ref_count(object, action);
+		object = NULL;
+
+		/* Move on to the next object to be updated */
+
+		if (next_object) {
+			object = next_object;
+			next_object = NULL;
+		} else if (state_list) {
+			state = acpi_ut_pop_generic_state(&state_list);
+			object = state->update.object;
+			acpi_ut_delete_generic_state(state);
+		}
+	}
+
+	return (AE_OK);
+
+error_exit:
+
+	ACPI_EXCEPTION((AE_INFO, status,
+			"Could not update object reference count"));
+
+	/* Free any stacked Update State objects */
+
+	while (state_list) {
+		state = acpi_ut_pop_generic_state(&state_list);
+		acpi_ut_delete_generic_state(state);
+	}
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_add_reference
+ *
+ * PARAMETERS:  object          - Object whose reference count is to be
+ *                                incremented
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Add one reference to an ACPI object
+ *
+ ******************************************************************************/
+
+void acpi_ut_add_reference(union acpi_operand_object *object)
+{
+
+	ACPI_FUNCTION_NAME(ut_add_reference);
+
+	/* Ensure that we have a valid object */
+
+	if (!acpi_ut_valid_internal_object(object)) {
+		return;
+	}
+
+	ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+			  "Obj %p Current Refs=%X [To Be Incremented]\n",
+			  object, object->common.reference_count));
+
+	/* Increment the reference count */
+
+	(void)acpi_ut_update_object_reference(object, REF_INCREMENT);
+	return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_remove_reference
+ *
+ * PARAMETERS:  object         - Object whose ref count will be decremented
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Decrement the reference count of an ACPI internal object
+ *
+ ******************************************************************************/
+
+void acpi_ut_remove_reference(union acpi_operand_object *object)
+{
+
+	ACPI_FUNCTION_NAME(ut_remove_reference);
+
+	/*
+	 * Allow a NULL pointer to be passed in, just ignore it. This saves
+	 * each caller from having to check. Also, ignore NS nodes.
+	 */
+	if (!object ||
+	    (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED)) {
+		return;
+	}
+
+	/* Ensure that we have a valid object */
+
+	if (!acpi_ut_valid_internal_object(object)) {
+		return;
+	}
+
+	ACPI_DEBUG_PRINT_RAW((ACPI_DB_ALLOCATIONS,
+			      "%s: Obj %p Current Refs=%X [To Be Decremented]\n",
+			      ACPI_GET_FUNCTION_NAME, object,
+			      object->common.reference_count));
+
+	/*
+	 * Decrement the reference count, and only actually delete the object
+	 * if the reference count becomes 0. (Must also decrement the ref count
+	 * of all subobjects!)
+	 */
+	(void)acpi_ut_update_object_reference(object, REF_DECREMENT);
+	return;
+}