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/kernel/acpi.rs
• F tools/power/acpi/

Last 30 days

Active reviewers (last 30 days)

• Dat Mach <hidden>
  1 attestation (1 Co-developed-by) · last on 2026-09-01

Recent patches

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

• COOLING7d [PATCH v2 2/3] ACPI: arm64: Add support for the FF-A FFH Operation Region (offset 2)
  2026-09-01 · Jamie Nguyen <hidden>
• COLD26d [PATCH v2 2/2] ACPI: IORT: validate RMR node array extents
  2026-08-13 · Pengpeng Hou <hidden>
• COLD26d [PATCH v2 1/2] ACPI: IORT: validate table and node extents before traversal
  2026-08-13 · Pengpeng Hou <hidden>
• COLD27d [PATCH] debug
  2026-08-12 · Atharva Tiwari <hidden>
• COLD41d [RFC PATCH 2/3] ACPI: arm64: Add support for the FF-A FFH Operation Region (offset 2)
  2026-07-29 · Jamie Nguyen <hidden>
• COLD32d [PATCH 2/2] ACPI/IORT: use platform_device_set_fwnode()
  2026-07-28 · Bartosz Golaszewski <hidden>
• COLD32d [PATCH 1/2] ACPI/APMT: use platform_device_set_fwnode()
  2026-07-28 · Bartosz Golaszewski <hidden>
• COLD43d [PATCH 9/9] ACPI: use a named initializer for acpi_device_id::id
  2026-07-27 · Pawel Zalewski (The Capable Hub) <hidden>
• COLD43d [PATCH 8/9] ACPI: x86: use a named initializer for acpi_device_id::id
  2026-07-27 · Pawel Zalewski (The Capable Hub) <hidden>
• COLD43d [PATCH 7/9] ACPI: nfit: core: drop unused assignment of acpi_device_id::driver_data
  2026-07-27 · Pawel Zalewski (The Capable Hub) <hidden>
• COLD43d [PATCH 6/9] ACPI: dptf: drop unused assignment of acpi_device_id::driver_data
  2026-07-27 · Pawel Zalewski (The Capable Hub) <hidden>
• COLD43d [PATCH 5/9] ACPI: amba: drop unused assignment of acpi_device_id::driver_data
  2026-07-27 · Pawel Zalewski (The Capable Hub) <hidden>
• COLD43d [PATCH 4/9] ACPI: ghes-nvidia: use a named initializer for acpi_device_id::id
  2026-07-27 · Pawel Zalewski (The Capable Hub) <hidden>
• COLD43d [PATCH 3/9] ACPI: pci: drop unused assignment of acpi_device_id::driver_data
  2026-07-27 · Pawel Zalewski (The Capable Hub) <hidden>
• COLD43d [PATCH 2/9] ACPI: drop unused assignment of acpi_device_id::driver_data
  2026-07-27 · Pawel Zalewski (The Capable Hub) <hidden>
• COLD43d [PATCH 1/9] ACPI: use a named initializer for acpi_device_id
  2026-07-27 · Pawel Zalewski (The Capable Hub) <hidden>
• COLD41d [PATCH v4 10/10] arm_mpam: detect and enable MPAM-Fb PCC support
  2026-07-23 · Andre Przywara <andre.przywara@arm.com>
• COLD37d REVIEWED: 1 (0M) [PATCH v2 1/4] ACPI/APMT: Use stable device ID
  2026-07-16 · Robin Murphy <robin.murphy@arm.com>
• COLD47d [PATCH v3 16/16] arm_mpam: detect and enable MPAM-Fb PCC support
  2026-07-10 · Andre Przywara <andre.przywara@arm.com>
• COLD58d [PATCH 1/4] ACPI/APMT: Use stable device ID
  2026-07-09 · Robin Murphy <robin.murphy@arm.com>
• STALE61d [PATCH v4 6/7] ACPI/IORT: Implement ACPI infrastructure to enable GICv5 IWB probe deferral
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org>
• STALE61d REVIEWED: 1 (0M) [PATCH v4 5/7] ACPI: irq: Move RISC-V interrupt controllers autodep to ACPI IRQ code
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org>
• STALE61d REVIEWED: 2 (0M) [PATCH v4 4/7] ACPI: RISC-V: Fix riscv_acpi_add_prt_dep() loop handling
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org>
• STALE61d REVIEWED: 2 (0M) [PATCH v4 3/7] ACPI: RISC-V: Check acpi_get_handle() status in riscv_acpi_add_prt_dep()
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org>
• STALE61d REVIEWED: 2 (0M) [PATCH v4 2/7] ACPI: RISC-V: Fix riscv_acpi_irq_get_dep() loop termination
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org>
• STALE61d [PATCH v4 1/7] ACPI: Add acpi_device_clear_deps() helper function
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org>
• COLD48d REVIEWED: 4 (2M) [PATCH v2 1/2] ACPI: CPPC: add paired FFH feedback-counter read hook
  2026-07-08 · Pengjie Zhang <hidden>
• COLD35d [PATCH] ACPI: IORT: validate RMR node array bounds
  2026-07-06 · Pengpeng Hou <hidden>
• COLD54d [PATCH] ACPI: APMT: validate node bounds before device registration
  2026-07-06 · Pengpeng Hou <hidden>
• COLD60d [PATCH v2 15/15] arm_mpam: detect and enable MPAM-Fb PCC support
  2026-07-02 · Andre Przywara <andre.przywara@arm.com>

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.

• STALE155d REVIEWED: 1 (0M) [PATCH v2] ACPI: AGDI: fix missing newline in error message
  2026-04-01 · Haoyu Lu <hidden> · 1 Reviewed-by
• STALE153d REVIEWED: 1 (0M) [PATCH v3] ACPI: AGDI: fix missing newline in error message
  2026-04-07 · Haoyu Lu <hidden> · 1 Reviewed-by
• STALE65d REVIEWED: 2 (0M) [PATCH v3 2/7] ACPI: RISC-V: Fix riscv_acpi_irq_get_dep() loop termination
  2026-07-01 · Lorenzo Pieralisi <lpieralisi@kernel.org> · 1 Reviewed-by, 1 Tested-by
• STALE65d REVIEWED: 2 (0M) [PATCH v3 3/7] ACPI: RISC-V: Check acpi_get_handle() status in riscv_acpi_add_prt_dep()
  2026-07-01 · Lorenzo Pieralisi <lpieralisi@kernel.org> · 1 Reviewed-by, 1 Tested-by
• STALE65d REVIEWED: 2 (0M) [PATCH v3 4/7] ACPI: RISC-V: Fix riscv_acpi_add_prt_dep() loop handling
  2026-07-01 · Lorenzo Pieralisi <lpieralisi@kernel.org> · 1 Reviewed-by, 1 Tested-by
• STALE65d REVIEWED: 1 (0M) [PATCH v3 5/7] ACPI: irq: Move RISC-V interrupt controllers autodep to ACPI IRQ code
  2026-07-01 · Lorenzo Pieralisi <lpieralisi@kernel.org> · 1 Tested-by
• STALE61d REVIEWED: 2 (0M) [PATCH v4 2/7] ACPI: RISC-V: Fix riscv_acpi_irq_get_dep() loop termination
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org> · 1 Reviewed-by, 1 Tested-by
• STALE61d REVIEWED: 2 (0M) [PATCH v4 3/7] ACPI: RISC-V: Check acpi_get_handle() status in riscv_acpi_add_prt_dep()
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org> · 1 Reviewed-by, 1 Tested-by
• STALE61d REVIEWED: 2 (0M) [PATCH v4 4/7] ACPI: RISC-V: Fix riscv_acpi_add_prt_dep() loop handling
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org> · 1 Reviewed-by, 1 Tested-by
• STALE61d REVIEWED: 1 (0M) [PATCH v4 5/7] ACPI: irq: Move RISC-V interrupt controllers autodep to ACPI IRQ code
  2026-07-09 · Lorenzo Pieralisi <lpieralisi@kernel.org> · 1 Tested-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.

• STALE180d [PATCH v2 04/11] ACPI: APEI: GHES: move GHESv2 ack and alloc helpers
  2026-02-20 · Ahmed Tiba <hidden>
• STALE180d [PATCH v2 05/11] ACPI: APEI: GHES: move estatus cache helpers
  2026-02-20 · Ahmed Tiba <hidden>
• STALE180d [PATCH v2 06/11] ACPI: APEI: GHES: move vendor record helpers
  2026-02-20 · Ahmed Tiba <hidden>
• STALE180d [PATCH v2 08/11] ACPI: APEI: introduce GHES helper
  2026-02-20 · Ahmed Tiba <hidden>
• STALE166d [PATCH v3 02/10] ACPI: APEI: GHES: move CPER read helpers
  2026-03-18 · Ahmed Tiba <hidden>
• STALE166d [PATCH v3 03/10] ACPI: APEI: GHES: move GHESv2 ack and alloc helpers
  2026-03-18 · Ahmed Tiba <hidden>
• STALE166d [PATCH v3 04/10] ACPI: APEI: GHES: move estatus cache helpers
  2026-03-18 · Ahmed Tiba <hidden>
• STALE166d [PATCH v3 05/10] ACPI: APEI: GHES: move vendor record helpers
  2026-03-18 · Ahmed Tiba <hidden>
• STALE166d [PATCH v3 07/10] ACPI: APEI: introduce GHES helper
  2026-03-18 · Ahmed Tiba <hidden>
• STALE166d [PATCH v3 08/10] ACPI: APEI: share GHES CPER helpers
  2026-03-18 · Ahmed Tiba <hidden>