Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.80 2025-12-01T10:43:30+00:00 2025-12-01T10:43:30+00:00 Armin Wolf W_Armin@gmx.de 2025-11-10T11:12:53+00:00 urn:sha1:03f159df3ef8ca33fa7692e132e0207c28ca2e4f [ Upstream commit 97b726eb1dc2b4a2532544eb3da72bb6acbd39a3 ] The WMI driver core only supports GUID strings containing only uppercase characters, however the GUID string used by the msi-wmi-platform driver contains a single lowercase character. This prevents the WMI driver core from matching said driver to its WMI device. Fix this by turning the lowercase character into a uppercase character. Also update the WMI driver development guide to warn about this. Reported-by: Antheas Kapenekakis <lkml@antheas.dev> Fixes: 9c0beb6b29e7 ("platform/x86: wmi: Add MSI WMI Platform driver") Tested-by: Antheas Kapenekakis <lkml@antheas.dev> Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://patch.msgid.link/20251110111253.16204-3-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 2025-04-25T08:48:04+00:00 Armin Wolf W_Armin@gmx.de 2025-04-14T14:04:53+00:00 urn:sha1:6ea2e8743ed163d2ab19bc65d0b12925dc5bb00f commit baf2f2c2b4c8e1d398173acd4d2fa9131a86b84e upstream. The ACPI byte code inside the ACPI control method responsible for handling the WMI method calls uses a global buffer for constructing the return value, yet the ACPI control method itself is not marked as "Serialized". This means that calling WMI methods on this WMI device is not thread-safe, as concurrent WMI method calls will corrupt the global buffer. Fix this by serializing the WMI method calls using a mutex. Cc: stable@vger.kernel.org # 6.x.x: 912d614ac99e: platform/x86: msi-wmi-platform: Rename "data" variable Fixes: 9c0beb6b29e7 ("platform/x86: wmi: Add MSI WMI Platform driver") Tested-by: Antheas Kapenekakis <lkml@antheas.dev> Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20250414140453.7691-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2024-10-06T10:47:40+00:00 Anaswara T Rajan anaswaratrajan@gmail.com 2024-10-05T07:00:56+00:00 urn:sha1:7b954b9ba007d03ba26135ac49b2c93208cf090e Fix typo in word 'diagnostics' in documentation. Signed-off-by: Anaswara T Rajan <anaswaratrajan@gmail.com> Reviewed-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20241005070056.16326-1-anaswaratrajan@gmail.com Signed-off-by: Hans de Goede <hdegoede@redhat.com> 2024-07-31T09:37:01+00:00 Luis Felipe Hernandez luis.hernandez093@gmail.com 2024-07-31T00:15:59+00:00 urn:sha1:6e73c490445ae77c52f62fcf9a49193d17c6f79a There were a few instances of typos that lead could to confusion when reading. The following words have been corrected: Binay -> Binary singe -> single chaged -> changed Signed-off-by: Luis Felipe Hernandez <luis.hernandez093@gmail.com> Reviewed-by: Armin Wolf <W_Armin@gmx.de> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20240731001602.259338-1-luis.hernandez093@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> 2024-04-29T10:06:21+00:00 Armin Wolf W_Armin@gmx.de 2024-04-21T19:11:45+00:00 urn:sha1:9c0beb6b29e75cacd5fdc63ce6d8502e73e782b8 Add a new driver for the MSI WMI Platform interface. The underlying ACPI WMI interface supports many features, but so far only reading of fan speed sensors is implemented. The driver was reverse-engineered based on a user request to the lm-sensors project, see the github issue for details. The ACPI WMI interface used by this driver seems to use the same embedded controller interface as the msi-ec driver, but supports automatic discovery of supported machines without relying on a DMI whitelist. The driver was tested by the user who created the github issue. Closes: https://github.com/lm-sensors/lm-sensors/issues/475 Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20240421191145.3189-1-W_Armin@gmx.de Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> 2024-04-08T15:45:36+00:00 Armin Wolf W_Armin@gmx.de 2024-04-02T14:30:59+00:00 urn:sha1:a582a43e0d2e0afb695cd22ce46554f4a3d8b7bc Since 2010, an LWN article covering WMI drivers exists: https://lwn.net/Articles/391230/ Since the introduction of the modern bus-based interface and other userspace tooling (bmfdec, lswmi, ...), this article is outdated and causes people to still submit new WMI drivers using the deprecated GUID-based interface. Fix this by adding a short guide on how to develop WMI drivers using the modern bus-based interface. Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20240402143059.8456-4-W_Armin@gmx.de Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> 2024-02-27T12:44:31+00:00 Armin Wolf W_Armin@gmx.de 2024-02-19T11:59:18+00:00 urn:sha1:3c4303518a118a4fd5ce879bc2ad399004f6838d Update the WMI ACPI interface documentation to include the fact that _WED should be evaluated every time an ACPI notification is received. Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20240219115919.16526-5-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> 2023-08-31T03:05:42+00:00 Linus Torvalds torvalds@linux-foundation.org 2023-08-31T03:05:42+00:00 urn:sha1:cd99b9eb4b702563c5ac7d26b632a628f5a832a5 Pull documentation updates from Jonathan Corbet: "Documentation work keeps chugging along; this includes: - Work from Carlos Bilbao to integrate rustdoc output into the generated HTML documentation. This took some work to figure out how to do it without slowing the docs build and without creating people who don't have Rust installed, but Carlos got there - Move the loongarch and mips architecture documentation under Documentation/arch/ - Some more maintainer documentation from Jakub ... plus the usual assortment of updates, translations, and fixes" * tag 'docs-6.6' of git://git.lwn.net/linux: (56 commits) Docu: genericirq.rst: fix irq-example input: docs: pxrc: remove reference to phoenix-sim Documentation: serial-console: Fix literal block marker docs/mm: remove references to hmm_mirror ops and clean typos docs/zh_CN: correct regi_chg(),regi_add() to region_chg(),region_add() Documentation: Fix typos Documentation/ABI: Fix typos scripts: kernel-doc: fix macro handling in enums scripts: kernel-doc: parse DEFINE_DMA_UNMAP_[ADDR|LEN] Documentation: riscv: Update boot image header since EFI stub is supported Documentation: riscv: Add early boot document Documentation: arm: Add bootargs to the table of added DT parameters docs: kernel-parameters: Refer to the correct bitmap function doc: update params of memhp_default_state= docs: Add book to process/kernel-docs.rst docs: sparse: fix invalid link addresses docs: vfs: clean up after the iterate() removal docs: Add a section on surveys to the researcher guidelines docs: move mips under arch docs: move loongarch under arch ... 2023-08-18T17:29:03+00:00 Bjorn Helgaas bhelgaas@google.com 2023-08-14T21:28:22+00:00 urn:sha1:d56b699d76d1b352f7a3d3a0a3e91c79b8612d94 Fix typos in Documentation. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20230814212822.193684-4-helgaas@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net> 2023-07-11T10:15:30+00:00 Armin Wolf W_Armin@gmx.de 2023-07-07T01:03:33+00:00 urn:sha1:d0050c2ef53f87561d8345cccf49927ade91cca6 Add missing empty line necessary for sphinx to recognize the list. Also reword the first entry a little bit. Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20230707010333.12954-2-W_Armin@gmx.de Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>