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, 501 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
new file mode 100644
index 000000000..39fe45663
--- /dev/null
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -0,0 +1,501 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/******************************************************************************
+ *
+ * Module Name: evgpeblk - GPE block creation and initialization.
+ *
+ * Copyright (C) 2000 - 2022, Intel Corp.
+ *
+ *****************************************************************************/
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
+
+#define _COMPONENT          ACPI_EVENTS
+ACPI_MODULE_NAME("evgpeblk")
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
+/* Local prototypes */
+static acpi_status
+acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
+			  u32 interrupt_number);
+
+static acpi_status
+acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_install_gpe_block
+ *
+ * PARAMETERS:  gpe_block               - New GPE block
+ *              interrupt_number        - Xrupt to be associated with this
+ *                                        GPE block
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Install new GPE block with mutex support
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
+			  u32 interrupt_number)
+{
+	struct acpi_gpe_block_info *next_gpe_block;
+	struct acpi_gpe_xrupt_info *gpe_xrupt_block;
+	acpi_status status;
+	acpi_cpu_flags flags;
+
+	ACPI_FUNCTION_TRACE(ev_install_gpe_block);
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	status =
+	    acpi_ev_get_gpe_xrupt_block(interrupt_number, &gpe_xrupt_block);
+	if (ACPI_FAILURE(status)) {
+		goto unlock_and_exit;
+	}
+
+	/* Install the new block at the end of the list with lock */
+
+	flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+	if (gpe_xrupt_block->gpe_block_list_head) {
+		next_gpe_block = gpe_xrupt_block->gpe_block_list_head;
+		while (next_gpe_block->next) {
+			next_gpe_block = next_gpe_block->next;
+		}
+
+		next_gpe_block->next = gpe_block;
+		gpe_block->previous = next_gpe_block;
+	} else {
+		gpe_xrupt_block->gpe_block_list_head = gpe_block;
+	}
+
+	gpe_block->xrupt_block = gpe_xrupt_block;
+	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+
+unlock_and_exit:
+	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_delete_gpe_block
+ *
+ * PARAMETERS:  gpe_block           - Existing GPE block
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Remove a GPE block
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
+{
+	acpi_status status;
+	acpi_cpu_flags flags;
+
+	ACPI_FUNCTION_TRACE(ev_install_gpe_block);
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Disable all GPEs in this block */
+
+	status =
+	    acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block, NULL);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	if (!gpe_block->previous && !gpe_block->next) {
+
+		/* This is the last gpe_block on this interrupt */
+
+		status = acpi_ev_delete_gpe_xrupt(gpe_block->xrupt_block);
+		if (ACPI_FAILURE(status)) {
+			goto unlock_and_exit;
+		}
+	} else {
+		/* Remove the block on this interrupt with lock */
+
+		flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+		if (gpe_block->previous) {
+			gpe_block->previous->next = gpe_block->next;
+		} else {
+			gpe_block->xrupt_block->gpe_block_list_head =
+			    gpe_block->next;
+		}
+
+		if (gpe_block->next) {
+			gpe_block->next->previous = gpe_block->previous;
+		}
+
+		acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+	}
+
+	acpi_current_gpe_count -= gpe_block->gpe_count;
+
+	/* Free the gpe_block */
+
+	ACPI_FREE(gpe_block->register_info);
+	ACPI_FREE(gpe_block->event_info);
+	ACPI_FREE(gpe_block);
+
+unlock_and_exit:
+	status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_create_gpe_info_blocks
+ *
+ * PARAMETERS:  gpe_block   - New GPE block
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create the register_info and event_info blocks for this GPE block
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
+{
+	struct acpi_gpe_register_info *gpe_register_info = NULL;
+	struct acpi_gpe_event_info *gpe_event_info = NULL;
+	struct acpi_gpe_event_info *this_event;
+	struct acpi_gpe_register_info *this_register;
+	u32 i;
+	u32 j;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(ev_create_gpe_info_blocks);
+
+	/* Allocate the GPE register information block */
+
+	gpe_register_info = ACPI_ALLOCATE_ZEROED((acpi_size)gpe_block->
+						 register_count *
+						 sizeof(struct
+							acpi_gpe_register_info));
+	if (!gpe_register_info) {
+		ACPI_ERROR((AE_INFO,
+			    "Could not allocate the GpeRegisterInfo table"));
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	/*
+	 * Allocate the GPE event_info block. There are eight distinct GPEs
+	 * per register. Initialization to zeros is sufficient.
+	 */
+	gpe_event_info = ACPI_ALLOCATE_ZEROED((acpi_size)gpe_block->gpe_count *
+					      sizeof(struct
+						     acpi_gpe_event_info));
+	if (!gpe_event_info) {
+		ACPI_ERROR((AE_INFO,
+			    "Could not allocate the GpeEventInfo table"));
+		status = AE_NO_MEMORY;
+		goto error_exit;
+	}
+
+	/* Save the new Info arrays in the GPE block */
+
+	gpe_block->register_info = gpe_register_info;
+	gpe_block->event_info = gpe_event_info;
+
+	/*
+	 * Initialize the GPE Register and Event structures. A goal of these
+	 * tables is to hide the fact that there are two separate GPE register
+	 * sets in a given GPE hardware block, the status registers occupy the
+	 * first half, and the enable registers occupy the second half.
+	 */
+	this_register = gpe_register_info;
+	this_event = gpe_event_info;
+
+	for (i = 0; i < gpe_block->register_count; i++) {
+
+		/* Init the register_info for this GPE register (8 GPEs) */
+
+		this_register->base_gpe_number = (u16)
+		    (gpe_block->block_base_number +
+		     (i * ACPI_GPE_REGISTER_WIDTH));
+
+		this_register->status_address.address = gpe_block->address + i;
+
+		this_register->enable_address.address =
+		    gpe_block->address + i + gpe_block->register_count;
+
+		this_register->status_address.space_id = gpe_block->space_id;
+		this_register->enable_address.space_id = gpe_block->space_id;
+
+		/* Init the event_info for each GPE within this register */
+
+		for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
+			this_event->gpe_number =
+			    (u8) (this_register->base_gpe_number + j);
+			this_event->register_info = this_register;
+			this_event++;
+		}
+
+		/* Disable all GPEs within this register */
+
+		status = acpi_hw_gpe_write(0x00, &this_register->enable_address);
+		if (ACPI_FAILURE(status)) {
+			goto error_exit;
+		}
+
+		/* Clear any pending GPE events within this register */
+
+		status = acpi_hw_gpe_write(0xFF, &this_register->status_address);
+		if (ACPI_FAILURE(status)) {
+			goto error_exit;
+		}
+
+		this_register++;
+	}
+
+	return_ACPI_STATUS(AE_OK);
+
+error_exit:
+	if (gpe_register_info) {
+		ACPI_FREE(gpe_register_info);
+	}
+	if (gpe_event_info) {
+		ACPI_FREE(gpe_event_info);
+	}
+
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_create_gpe_block
+ *
+ * PARAMETERS:  gpe_device          - Handle to the parent GPE block
+ *              gpe_block_address   - Address and space_ID
+ *              register_count      - Number of GPE register pairs in the block
+ *              gpe_block_base_number - Starting GPE number for the block
+ *              interrupt_number    - H/W interrupt for the block
+ *              return_gpe_block    - Where the new block descriptor is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create and Install a block of GPE registers. All GPEs within
+ *              the block are disabled at exit.
+ *              Note: Assumes namespace is locked.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
+			 u64 address,
+			 u8 space_id,
+			 u32 register_count,
+			 u16 gpe_block_base_number,
+			 u32 interrupt_number,
+			 struct acpi_gpe_block_info **return_gpe_block)
+{
+	acpi_status status;
+	struct acpi_gpe_block_info *gpe_block;
+	struct acpi_gpe_walk_info walk_info;
+
+	ACPI_FUNCTION_TRACE(ev_create_gpe_block);
+
+	if (!register_count) {
+		return_ACPI_STATUS(AE_OK);
+	}
+
+	/* Validate the space_ID */
+
+	if ((space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) &&
+	    (space_id != ACPI_ADR_SPACE_SYSTEM_IO)) {
+		ACPI_ERROR((AE_INFO,
+			    "Unsupported address space: 0x%X", space_id));
+		return_ACPI_STATUS(AE_SUPPORT);
+	}
+
+	if (space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
+		status = acpi_hw_validate_io_block(address,
+						   ACPI_GPE_REGISTER_WIDTH,
+						   register_count);
+		if (ACPI_FAILURE(status))
+			return_ACPI_STATUS(status);
+	}
+
+	/* Allocate a new GPE block */
+
+	gpe_block = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_block_info));
+	if (!gpe_block) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	/* Initialize the new GPE block */
+
+	gpe_block->address = address;
+	gpe_block->space_id = space_id;
+	gpe_block->node = gpe_device;
+	gpe_block->gpe_count = (u16)(register_count * ACPI_GPE_REGISTER_WIDTH);
+	gpe_block->initialized = FALSE;
+	gpe_block->register_count = register_count;
+	gpe_block->block_base_number = gpe_block_base_number;
+
+	/*
+	 * Create the register_info and event_info sub-structures
+	 * Note: disables and clears all GPEs in the block
+	 */
+	status = acpi_ev_create_gpe_info_blocks(gpe_block);
+	if (ACPI_FAILURE(status)) {
+		ACPI_FREE(gpe_block);
+		return_ACPI_STATUS(status);
+	}
+
+	/* Install the new block in the global lists */
+
+	status = acpi_ev_install_gpe_block(gpe_block, interrupt_number);
+	if (ACPI_FAILURE(status)) {
+		ACPI_FREE(gpe_block->register_info);
+		ACPI_FREE(gpe_block->event_info);
+		ACPI_FREE(gpe_block);
+		return_ACPI_STATUS(status);
+	}
+
+	acpi_gbl_all_gpes_initialized = FALSE;
+
+	/* Find all GPE methods (_Lxx or_Exx) for this block */
+
+	walk_info.gpe_block = gpe_block;
+	walk_info.gpe_device = gpe_device;
+	walk_info.execute_by_owner_id = FALSE;
+
+	(void)acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device,
+				     ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
+				     acpi_ev_match_gpe_method, NULL, &walk_info,
+				     NULL);
+
+	/* Return the new block */
+
+	if (return_gpe_block) {
+		(*return_gpe_block) = gpe_block;
+	}
+
+	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+			      "    Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X%s\n",
+			      (u32)gpe_block->block_base_number,
+			      (u32)(gpe_block->block_base_number +
+				    (gpe_block->gpe_count - 1)),
+			      gpe_device->name.ascii, gpe_block->register_count,
+			      interrupt_number,
+			      interrupt_number ==
+			      acpi_gbl_FADT.sci_interrupt ? " (SCI)" : ""));
+
+	/* Update global count of currently available GPEs */
+
+	acpi_current_gpe_count += gpe_block->gpe_count;
+	return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_initialize_gpe_block
+ *
+ * PARAMETERS:  acpi_gpe_callback
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Initialize and enable a GPE block. Enable GPEs that have
+ *              associated methods.
+ *              Note: Assumes namespace is locked.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+			     struct acpi_gpe_block_info *gpe_block,
+			     void *context)
+{
+	acpi_status status;
+	struct acpi_gpe_event_info *gpe_event_info;
+	u32 gpe_enabled_count;
+	u32 gpe_index;
+	u32 i;
+	u32 j;
+	u8 *is_polling_needed = context;
+	ACPI_ERROR_ONLY(u32 gpe_number);
+
+	ACPI_FUNCTION_TRACE(ev_initialize_gpe_block);
+
+	/*
+	 * Ignore a null GPE block (e.g., if no GPE block 1 exists), and
+	 * any GPE blocks that have been initialized already.
+	 */
+	if (!gpe_block || gpe_block->initialized) {
+		return_ACPI_STATUS(AE_OK);
+	}
+
+	/*
+	 * Enable all GPEs that have a corresponding method and have the
+	 * ACPI_GPE_CAN_WAKE flag unset. Any other GPEs within this block
+	 * must be enabled via the acpi_enable_gpe() interface.
+	 */
+	gpe_enabled_count = 0;
+
+	for (i = 0; i < gpe_block->register_count; i++) {
+		for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
+
+			/* Get the info block for this particular GPE */
+
+			gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j;
+			gpe_event_info = &gpe_block->event_info[gpe_index];
+			ACPI_ERROR_ONLY(gpe_number =
+					gpe_block->block_base_number +
+					gpe_index);
+			gpe_event_info->flags |= ACPI_GPE_INITIALIZED;
+
+			/*
+			 * Ignore GPEs that have no corresponding _Lxx/_Exx method
+			 * and GPEs that are used for wakeup
+			 */
+			if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) !=
+			     ACPI_GPE_DISPATCH_METHOD)
+			    || (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) {
+				continue;
+			}
+
+			status = acpi_ev_add_gpe_reference(gpe_event_info, FALSE);
+			if (ACPI_FAILURE(status)) {
+				ACPI_EXCEPTION((AE_INFO, status,
+					"Could not enable GPE 0x%02X",
+					gpe_number));
+				continue;
+			}
+
+			gpe_event_info->flags |= ACPI_GPE_AUTO_ENABLED;
+
+			if (is_polling_needed &&
+			    ACPI_GPE_IS_POLLING_NEEDED(gpe_event_info)) {
+				*is_polling_needed = TRUE;
+			}
+
+			gpe_enabled_count++;
+		}
+	}
+
+	if (gpe_enabled_count) {
+		ACPI_INFO(("Enabled %u GPEs in block %02X to %02X",
+			   gpe_enabled_count, (u32)gpe_block->block_base_number,
+			   (u32)(gpe_block->block_base_number +
+				 (gpe_block->gpe_count - 1))));
+	}
+
+	gpe_block->initialized = TRUE;
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+#endif				/* !ACPI_REDUCED_HARDWARE */