acpi · Supported

Maintainers

• M "Rafael J. Wysocki" <rafael@kernel.org>
• R Len Brown <lenb@kernel.org>

Paths

• F Documentation/ABI/testing/configfs-acpi
• F Documentation/ABI/testing/sysfs-bus-acpi
• F Documentation/firmware-guide/acpi/
• F arch/x86/kernel/acpi/
• F arch/x86/pci/acpi.c
• F drivers/acpi/
• F drivers/pci/*/*acpi*
• F drivers/pci/*acpi*
• F drivers/pnp/pnpacpi/
• F include/acpi/
• F include/linux/acpi.h
• F include/linux/fwnode.h
• F include/linux/fw_table.h
• F lib/fw_table.c
• F rust/helpers/acpi.c
• F rust/kernel/acpi.rs
• F tools/power/acpi/

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH v1 0/2] ACPI: bus: Remove struct acpi_driver from the kernel
  2026-07-01 19:17 · 2 replies in 7d · "Rafael J. Wysocki (Intel)" <rafael@kernel.org>

Active reviewers (last 30 days)

• Jonathan Cameron <jic23@kernel.org>
  5 attestations (5 Reviewed-by) · last on 2026-06-17

Recent patches

Most-recent 30 patches in this subsystem on linux-doc (capped at 30), ordered by date desc.

• HOTtoday [PATCH v1 1/2] 1/2] ACPI: bus: Eliminate struct acpi_driver
  2026-07-01 · "Rafael J. Wysocki" <rafael@kernel.org>
• HOTtoday [PATCH v1 2/2] ACPI: scan: Set power.no_pm for all struct acpi_device objects
  2026-07-01 · "Rafael J. Wysocki" <rafael@kernel.org>
• WARM1d [PATCH v5 2/2] cpufreq: CPPC: add autonomous mode boot parameter support
  2026-06-23 · Sumit Gupta <sumitg@nvidia.com>
• WARM2d [PATCH v6 10/10] RAS: add firmware-first CPER provider
  2026-06-17 · Ahmed Tiba <hidden>
• WARM2d [PATCH v6 08/10] ACPI: APEI: share GHES CPER helpers
  2026-06-17 · Ahmed Tiba <hidden>
• WARM2d [PATCH v6 07/10] ACPI: APEI: introduce GHES helper
  2026-06-17 · Ahmed Tiba <hidden>
• WARM2d REVIEWED: 7 (7M) [PATCH v6 06/10] ACPI: APEI: GHES: move CXL CPER helpers
  2026-06-17 · Ahmed Tiba <hidden>
• WARM2d [PATCH v6 05/10] ACPI: APEI: GHES: move vendor record helpers
  2026-06-17 · Ahmed Tiba <hidden>
• WARM2d REVIEWED: 7 (7M) [PATCH v6 04/10] ACPI: APEI: GHES: move estatus cache helpers
  2026-06-17 · Ahmed Tiba <hidden>
• WARM2d REVIEWED: 7 (7M) [PATCH v6 03/10] ACPI: APEI: GHES: move GHESv2 ack and alloc helpers
  2026-06-17 · Ahmed Tiba <hidden>
• WARM2d REVIEWED: 7 (7M) [PATCH v6 02/10] ACPI: APEI: GHES: move CPER read helpers
  2026-06-17 · Ahmed Tiba <hidden>
• WARM2d REVIEWED: 7 (7M) [PATCH v6 01/10] ACPI: APEI: GHES: share macros via a private header
  2026-06-17 · Ahmed Tiba <hidden>
• HOTtoday [RFC PATCH 3/3] acpi/numa: add CONFIG_ACPI_NUMA_ADD_CFMWS_NODES
  2026-06-10 · Gregory Price <gourry@gourry.net>
• HOTtoday [RFC PATCH 2/3] acpi/numa: add CONFIG_ACPI_NUMA_STANDBY_NODES
  2026-06-10 · Gregory Price <gourry@gourry.net>
• COLD23d Re: [PATCH v3] cpu/hotplug: Fix NULL kobject warning in cpuhp_smt_enable()
  2026-06-03 · Jinjie Ruan <hidden>
• COLD30d [PATCH RFC v6 17/18] ACPI: RISC-V: Add support for RISC-V Quality of Service Controller (RQSC)
  2026-06-01 · Drew Fustini <fustini@kernel.org>
• COLD30d [PATCH RFC v6 16/18] ACPI: RISC-V: Parse RISC-V Quality of Service Controller (RQSC) table
  2026-06-01 · Drew Fustini <fustini@kernel.org>
• COLD15d [PATCH v5 10/10] RAS: add firmware-first CPER provider
  2026-05-29 · Ahmed Tiba <hidden>
• COLD15d [PATCH v5 08/10] ACPI: APEI: share GHES CPER helpers
  2026-05-29 · Ahmed Tiba <hidden>
• COLD15d [PATCH v5 07/10] ACPI: APEI: introduce GHES helper
  2026-05-29 · Ahmed Tiba <hidden>
• COLD15d [PATCH v5 06/10] ACPI: APEI: GHES: move CXL CPER helpers
  2026-05-29 · Ahmed Tiba <hidden>
• COLD15d [PATCH v5 05/10] ACPI: APEI: GHES: move vendor record helpers
  2026-05-29 · Ahmed Tiba <hidden>
• COLD15d [PATCH v5 04/10] ACPI: APEI: GHES: move estatus cache helpers
  2026-05-29 · Ahmed Tiba <hidden>
• COLD15d [PATCH v5 03/10] ACPI: APEI: GHES: move GHESv2 ack and alloc helpers
  2026-05-29 · Ahmed Tiba <hidden>
• COLD15d [PATCH v5 02/10] ACPI: APEI: GHES: move CPER read helpers
  2026-05-29 · Ahmed Tiba <hidden>
• COLD15d [PATCH v5 01/10] ACPI: APEI: GHES: share macros via a private header
  2026-05-29 · Ahmed Tiba <hidden>
• COOLING9d [PATCH v4 2/2] cpufreq: CPPC: add autonomous mode boot parameter support
  2026-05-27 · Sumit Gupta <sumitg@nvidia.com>
• COLD33d [PATCH RFC v5 17/18] ACPI: RISC-V: Add support for RISC-V Quality of Service Controller (RQSC)
  2026-05-24 · Drew Fustini <fustini@kernel.org>
• COLD33d [PATCH RFC v5 16/18] ACPI: RISC-V: Parse RISC-V Quality of Service Controller (RQSC) table
  2026-05-24 · Drew Fustini <fustini@kernel.org>
• COLD44d [PATCH v4 10/10] RAS: add firmware-first CPER provider
  2026-05-18 · Ahmed Tiba <hidden>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE105d REVIEWED: 1 (1M) [PATCH v8 2/3] x86: Implement acpi_get_cpu_uid()
  2026-03-18 · Chengwen Feng <hidden> · 1 Reviewed-by
• COLD51d REVIEWED: 1 (0M) [PATCH v19 2/2] ras: mem: Add ACPI RAS2 memory driver
  2026-04-08 · <hidden> · 1 Tested-by
• WARM2d REVIEWED: 7 (7M) [PATCH v6 01/10] ACPI: APEI: GHES: share macros via a private header
  2026-06-17 · Ahmed Tiba <hidden> · 1 Reviewed-by
• WARM2d REVIEWED: 7 (7M) [PATCH v6 02/10] ACPI: APEI: GHES: move CPER read helpers
  2026-06-17 · Ahmed Tiba <hidden> · 1 Reviewed-by
• WARM2d REVIEWED: 7 (7M) [PATCH v6 03/10] ACPI: APEI: GHES: move GHESv2 ack and alloc helpers
  2026-06-17 · Ahmed Tiba <hidden> · 1 Reviewed-by
• WARM2d REVIEWED: 7 (7M) [PATCH v6 04/10] ACPI: APEI: GHES: move estatus cache helpers
  2026-06-17 · Ahmed Tiba <hidden> · 1 Reviewed-by
• WARM2d REVIEWED: 7 (7M) [PATCH v6 06/10] ACPI: APEI: GHES: move CXL CPER helpers
  2026-06-17 · Ahmed Tiba <hidden> · 1 Reviewed-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE157d [PATCH 06/12] efi/cper: adopt estatus iteration helpers
  2025-12-17 · Ahmed Tiba <hidden>
• STALE157d [PATCH 07/12] ghes: prepare estatus hooks for shared handling
  2025-12-17 · Ahmed Tiba <hidden>
• STALE157d [PATCH 08/12] ghes: add estatus provider ops
  2025-12-17 · Ahmed Tiba <hidden>
• STALE157d [PATCH 09/12] ghes: route error handling through shared estatus core
  2025-12-17 · Ahmed Tiba <hidden>
• STALE147d [PATCH v7 1/7] ACPI: CPPC: Add cppc_get_perf() API to read performance controls
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE147d [PATCH v7 3/7] ACPI: CPPC: Extend cppc_set_epp_perf() for FFH/SystemMemory
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE147d [PATCH v7 5/7] ACPI: CPPC: add APIs and sysfs interface for perf_limited
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE112d [PATCH v2 04/11] ACPI: APEI: GHES: move GHESv2 ack and alloc helpers
  2026-02-20 · Ahmed Tiba <hidden>
• STALE112d [PATCH v2 05/11] ACPI: APEI: GHES: move estatus cache helpers
  2026-02-20 · Ahmed Tiba <hidden>
• STALE112d [PATCH v2 06/11] ACPI: APEI: GHES: move vendor record helpers
  2026-02-20 · Ahmed Tiba <hidden>