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2026-01-25dt-bindings: riscv: document zicfilp and zicfiss in extensions.yamlDeepak Gupta
Make an entry for cfi extensions in extensions.yaml. Signed-off-by: Deepak Gupta <debug@rivosinc.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Tested-by: Andreas Korb <andreas.korb@aisec.fraunhofer.de> # QEMU, custom CVA6 Tested-by: Valentin Haudiquet <valentin.haudiquet@canonical.com> Link: https://patch.msgid.link/20251112-v5_user_cfi_series-v23-2-b55691eacf4f@rivosinc.com [pjw@kernel.org: updated subject] Signed-off-by: Paul Walmsley <pjw@kernel.org>
2026-01-25dt-bindings: net: dsa: fix typos in bindings docsAkiyoshi Kurita
Fix "alway" -> "always" in lan9303.txt and marvell,mv88e6xxx.yaml. Signed-off-by: Akiyoshi Kurita <weibu@redadmin.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260123150211.2646235-1-weibu@redadmin.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-25net: expand NETDEV_RSS_KEY_LEN to 256 bytesEric Dumazet
NETDEV_RSS_KEY_LEN has been set to 52 bytes in 2014, until now. Jakub suggested we bump the size to 128 bytes or more. Some drivers (like idpf) were already working around the core limit. Since this change might cause some issues in admin scripts, bump it directly to 256 in one go. tjbp26:~# cat /proc/sys/net/core/netdev_rss_key | wc -c 768 tjbp26:~# ethtool -x eth1 RX flow hash indirection table for eth1 with 32 RX ring(s): ... RSS hash key: fe:16:5b:2f:93:85:c2:c9:c1:ef:bd:60:c6:e0:2b:99:4d:bf:b7:14:c8:1e:8d:cb:31:17:51:da:55:eb:91:d9:9e:f9:89:9b:44:a1:dc:08:72:3a:b3:d6:31:86:9a:fe:02:3a:0d:eb:a1:7c:f5:a3:51:3b:08:56:c9:3f:71:69:01:ba:70:38 RSS hash function: toeplitz: on xor: off crc32: off Suggested-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/netdev/20260122075206.504ec591@kernel.org/ Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20260122190349.2771064-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-25Documentation: net: Fix typos in netdevices.rstDimitri Daskalakis
Fixes two minor typos. Specifically, on -> or and Devices -> Device. Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com> Link: https://patch.msgid.link/20260122225723.2368698-1-dimitri.daskalakis1@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-25Merge tag 'char-misc-6.19-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc/iio driver fixes from Greg KH: "Here are some small char/misc/iio and some other minor driver subsystem fixes for 6.19-rc7. Nothing huge here, just some fixes for reported issues including: - lots of little iio driver fixes - comedi driver fixes - mux driver fix - w1 driver fixes - uio driver fix - slimbus driver fixes - hwtracing bugfix - other tiny bugfixes All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (36 commits) comedi: dmm32at: serialize use of paged registers mei: trace: treat reg parameter as string uio: pci_sva: correct '-ENODEV' check logic uacce: ensure safe queue release with state management uacce: implement mremap in uacce_vm_ops to return -EPERM uacce: fix isolate sysfs check condition uacce: fix cdev handling in the cleanup path slimbus: core: clean up of_slim_get_device() slimbus: core: fix of_slim_get_device() kernel doc slimbus: core: amend slim_get_device() kernel doc slimbus: core: fix device reference leak on report present slimbus: core: fix runtime PM imbalance on report present slimbus: core: fix OF node leak on registration failure intel_th: rename error label intel_th: fix device leak on output open() comedi: Fix getting range information for subdevices 16 to 255 mux: mmio: Fix IS_ERR() vs NULL check in probe() interconnect: debugfs: initialize src_node and dst_node to empty strings iio: dac: ad3552r-hs: fix out-of-bound write in ad3552r_hs_write_data_source iio: accel: iis328dq: fix gain values ...
2026-01-24dt-bindings: input: touchscreen: tsc2007: document '#io-channel-cells'Svyatoslav Ryhel
The tsc2007 can be used not only as resistive touchscreen controller but also as a ADC IIO sensor. The second use case requires '#io-channel-cells' property, hence add it. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260122193549.29858-2-clamor95@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-01-24Merge tag 'riscv-for-linus-6.19-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Paul Walmsley: "The notable changes here are the three RISC-V timer compare register update sequence patches. These only apply to RV32 systems and are related to the 64-bit timer compare value being split across two separate 32-bit registers. We weren't using the appropriate three-write sequence, documented in the RISC-V ISA specifications, to avoid spurious timer interrupts during the update sequence; so, these patches now use the recommended sequence. This doesn't affect 64-bit RISC-V systems, since the timer compare value fits inside a single register and can be updated with a single write. - Fix the RISC-V timer compare register update sequence on RV32 systems to use the recommended sequence in the RISC-V ISA manual This avoids spurious interrupts during updates - Add a dependence on the new CONFIG_CACHEMAINT_FOR_DMA Kconfig symbol for Renesas and StarFive RISC-V SoCs - Add a temporary workaround for a Clang compiler bug caused by using asm_goto_output for get_user() - Clarify our documentation to specifically state a particular ISA specification version for a chapter number reference" * tag 'riscv-for-linus-6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Add intermediate cast to 'unsigned long' in __get_user_asm riscv: Use 64-bit variable for output in __get_user_asm soc: renesas: Fix missing dependency on new CONFIG_CACHEMAINT_FOR_DMA riscv: ERRATA_STARFIVE_JH7100: Fix missing dependency on new CONFIG_CACHEMAINT_FOR_DMA riscv: suspend: Fix stimecmp update hazard on RV32 riscv: kvm: Fix vstimecmp update hazard on RV32 riscv: clocksource: Fix stimecmp update hazard on RV32 Documentation: riscv: uabi: Clarify ISA spec version for canonical order
2026-01-24dt-bindings: mailbox: xlnx,zynqmp-ipi-mailbox: Document msg region requirementHarini T
Add description clarifying that for Versal IPI mailboxes, both host and remote agents must have the "msg" register region defined for successful message passing. Without both, only notification-based communication works. Signed-off-by: Harini T <harini.t@amd.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
2026-01-24Documentation: Project continuityDan Williams
Document project continuity procedures. This is a plan for a plan for navigating events that affect the forward progress of the canonical Linux repository, torvalds/linux.git. It is a follow-up from Maintainer Summit [1]. Co-developed-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Kees Cook <kees@kernel.org> Reviewed-by: Jiri Kosina <jkosina@suse.com> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Link: https://lwn.net/Articles/1050179/ [1] Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-01-24dt-bindings: soc: spacemit: Add K3 reset support and IDsGuodong Xu
Update the spacemit,k1-syscon.yaml binding to document K3 SoC reset support. K3 reset devices are registered at runtime as auxiliary devices by the K3 CCU driver. Since K3 reuses the K1 syscon binding, there is no separate YAML binding file for K3 resets. Update #reset-cells description to document where reset IDs are defined. Acked-by: Alex Elder <elder@riscstar.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Guodong Xu <guodong@riscstar.com> Reviewed-by: Yixun Lan <dlan@kernel.org> Link: https://lore.kernel.org/spacemit/20260114092742-GYC7933267@gentoo.org/ [1] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2026-01-24Merge tag 'at24-updates-for-v7.0-rc1' of ↵Wolfram Sang
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-mergewindow at24 updates for v7.0-rc1 - add a set of new compatibles to DT bindings - use dev_err_probe() consistently in the driver
2026-01-23Merge patch series "ufs: ufs-qcom: Add support firmware managed platforms"Martin K. Petersen
Ram Kumar Dwivedi <ram.dwivedi@oss.qualcomm.com> says: On Qualcomm automotive SoC SA8255P, platform resource like clocks, interconnect, resets, regulators and PHY are configured remotely by firmware. Logical power domain is used to abstract these resources in firmware and SCMI power protocol is used to request resource operations by using runtime PM framework APIs such as pm_runtime_get/put_sync to invoke power_on/_off calls from kernel respectively. Link: https://patch.msgid.link/20260113080046.284089-1-ram.dwivedi@oss.qualcomm.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2026-01-23scsi: ufs: dt-bindings: Document bindings for SA8255P UFS Host ControllerRam Kumar Dwivedi
Document the device tree bindings for UFS host controller on Qualcomm SA8255P platform which integrates firmware-managed resources. The platform firmware implements the SCMI server and manages resources such as the PHY, clocks, regulators and resets via the SCMI power protocol. As a result, the OS-visible DT only describes the controller’s MMIO, interrupt, IOMMU and power-domain interfaces. The generic "qcom,ufshc" and "jedec,ufs-2.0" compatible strings are removed from the binding, since this firmware managed design won't be compatible with the drivers doing full resource management. Co-developed-by: Anjana Hari <anjana.hari@oss.qualcomm.com> Signed-off-by: Anjana Hari <anjana.hari@oss.qualcomm.com> Signed-off-by: Ram Kumar Dwivedi <ram.dwivedi@oss.qualcomm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Acked-by: Manivannan Sadhasivam <mani@kernel.org> Link: https://patch.msgid.link/20260113080046.284089-3-ram.dwivedi@oss.qualcomm.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2026-01-23scsi: Change the return type of the .queuecommand() callbackBart Van Assche
In clang version 21.1 and later the -Wimplicit-enum-enum-cast warning option has been introduced. This warning is enabled by default and can be used to catch .queuecommand() implementations that return another value than 0 or one of the SCSI_MLQUEUE_* constants. Hence this patch that changes the return type of the .queuecommand() implementations from 'int' into 'enum scsi_qc_status'. No functionality has been changed. Cc: Damien Le Moal <dlemoal@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://patch.msgid.link/20260115210357.2501991-6-bvanassche@acm.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2026-01-23Merge tag 'platform-drivers-x86-v6.19-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver fixes from Ilpo Järvinen: - acer-wmi: - Extend support for Acer Nitro AN515-58 - Fix missing capability check - amd/wbrf: Fix memory leak in wbrf_record() - asus-armoury: - Fix GA403U* matching - Fix FA608UM TDP data - Add many models - asus-wmi: Move OOBE presence check outside deprecation ifdef - hp-bioscfg: - Fix kernel panic in GET_INSTANCE_ID macro - Fix kobject warnings for empty attribute names - Correct GUID to uppercase (lowercase letter prevented autoloading the module) - mellanox: Fix SN5640/SN5610 LED platform data - docs: - alienware-wmi: Typo fix - amd_hsmp: Fix document link * tag 'platform-drivers-x86-v6.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (21 commits) platform/x86: acer-wmi: Fix missing capability check platform/x86: acer-wmi: Extend support for Acer Nitro AN515-58 platform/x86: asus-armoury: add support for GA403WW platform/x86: asus-armoury: keep the list ordered alphabetically platform/x86: asus-armoury: add support for G835L platform/x86: asus-armoury: fix ppt data for FA608UM platform/x86: hp-bioscfg: Fix automatic module loading platform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro platform/x86: hp-bioscfg: Fix kobject warnings for empty attribute names platform/x86: asus-wmi: fix sending OOBE at probe platform/x86: asus-armoury: add support for FA617XT platform/x86: asus-armoury: add support for FA401UV platform/x86: asus-armoury: add support for GV302XV platform/x86: asus-armoury: Add power limits for Asus G513QY platform/x86/amd: Fix memory leak in wbrf_record() platform/mellanox: Fix SN5640/SN5610 LED platform data docs: fix PPR for AMD EPYC broken link docs: alienware-wmi: fix typo platform/x86: asus-armoury: add support for GA403UV asus-armoury: fix ppt data for GA403U* renaming to GA403UI ...
2026-01-23geneve: add netlink support for GRO hintPaolo Abeni
Allow configuring and dumping the new device option, and cache its value into the geneve socket itself. The new option is not tie to it any code yet. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Link: https://patch.msgid.link/2295d4e4d1e919a3189425141bbc71c7850a2de0.1769011015.git.pabeni@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-23Documentation: use a source-read extension for the index link boilerplateJani Nikula
The root document usually has a special :ref:`genindex` link to the generated index. This is also the case for Documentation/index.rst. The other index.rst files deeper in the directory hierarchy usually don't. For SPHINXDIRS builds, the root document isn't Documentation/index.rst, but some other index.rst in the hierarchy. Currently they have a ".. only::" block to add the index link when doing SPHINXDIRS html builds. This is obviously very tedious and repetitive. The link is also added to all index.rst files in the hierarchy for SPHINXDIRS builds, not just the root document. Put the boilerplate in a sphinx-includes/subproject-index.rst file, and include it at the end of the root document for subproject builds in an ad-hoc source-read extension defined in conf.py. For now, keep having the boilerplate in translations, because this approach currently doesn't cover translated index link headers. Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Tested-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> [jc: did s/doctree/kern_doc_dir/ ] Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20260123143149.2024303-1-jani.nikula@intel.com>
2026-01-23Merge branch 'mauro' into docs-mwJonathan Corbet
Mauro's work to include documentation from our Python modules. His cover letter follows: This is an extended version of: https://lore.kernel.org/linux-doc/cover.1768488832.git.mchehab+huawei@kernel.org/ It basically adds everything we currently have inside libs/tool/python to "tools" book inside documentation. This version should be independent of the other series yet to be merged, (including the jobserver one). The vast amount of changes here are docstring cleanups and additions. They mainly consists on: - ensuring that every phrase will end with a period, making it uniform along all files; - cleaning ups to better uniform docstrings; - variable descriptions now use "#:" markup, as it allows autodoc to add them inside the documentation; - added some missing docstrings; - some new blank lines at comments to make ReST syntax parser happy; - add a couple of sphinx markups (mainly, code blocks). Most of those are minor changes, affecting only comments. It also has one patch per libarary type, adding them to docs. For kernel-doc, I did the cleanups first, as there is one code block inside tools/lib/python/kdoc/latex_fonts.py that would cause a Sphinx crash without such markups. The series actually starts with 3 fixes: - avoid "*" markups on indexes with deep> 3 to override text - a variable rename to stop abusing doctree name - don't rely on cwd to get Documentation/ location patch 4 adds support to document scripts either at: - tools/ - scripts/ patch 5 contains a CSS to better display autodoc html output. For those who want to play with documentation, documenting a python file is very simple. All it takes is to use: .. automodule:: lib.python.<dir+name> Usually, we add a couple of control members to it to adjust the desired documentation scope (add/remove members, showing class inheritance, showing members that currently don't have docstrings, etc). That's why we're using: .. automodule:: lib.python.kdoc.enrich_formatter :members: :show-inheritance: :undoc-members: (and similar) inside tools/kdoc*.rst. autodoc allows filtering in/out members, file docstrings, etc. It also allows documenting just some members or functions with directives like: ..autofunction: ..automember: Sphinx also has a helper script to generate .rst files with documentation: $ sphinx-apidoc -o foobar tools/lib/python/ which can be helpful to discover what should be documented, although changes are needed to use what it produces.
2026-01-23docs: add parse_features module documentationMauro Carvalho Chehab
Place parse_features module documentation at Linux Kernel docs. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <7c1e41468f765587f0962222e7f52125a039028f.1768838938.git.mchehab+huawei@kernel.org>
2026-01-23docs: add jobserver module documentationMauro Carvalho Chehab
Place jobserver module documentation at Linux Kernel docs. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <688215d6a41d78bd5e37854472a5fc802d58c77a.1768838938.git.mchehab+huawei@kernel.org>
2026-01-23docs: add kabi modules documentationMauro Carvalho Chehab
Place kernel abi modules documentation at Linux Kernel docs. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <ddc02f11d64fdfc0d8d3e3e0967e041b5172da6c.1768838938.git.mchehab+huawei@kernel.org>
2026-01-23docs: add kernel-doc modules documentationMauro Carvalho Chehab
Place kernel-doc modules documentation at Linux Kernel docs. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <88ac2d82a45718c4e27aefac831586a71204ebf2.1768838938.git.mchehab+huawei@kernel.org>
2026-01-23docs: custom.css: add CSS for pythonMauro Carvalho Chehab
As we'll start adding python to documentation, add some CSS templates to better display python code. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <b5a3dfd551b887a2885b85b4c9433e757c77628a.1768838938.git.mchehab+huawei@kernel.org>
2026-01-23docs: enable Sphinx autodoc extension to allow documenting pythonMauro Carvalho Chehab
Adding python documentation is simple with Sphinx: all we need is to include the ext.autodoc extension and add the directories where the Python code sits at the sys.path. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <29cbe375dc418d6fa5793f55199799b5b52dcd38.1768838938.git.mchehab+huawei@kernel.org>
2026-01-23docs: conf: don't rely on cwd to get documentation locationMauro Carvalho Chehab
Instead of relying that Sphinx will be called from Documentation/ dir, pick the location based on __file__. Suggested-by: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <34c38718dfade91ff6f7afca5e9c1705ba253c97.1768838938.git.mchehab+huawei@kernel.org>
2026-01-23docs: conf.py: don't use doctree with a different meaningMauro Carvalho Chehab
At Sphinx, doctree is a directory where doc build cache is stored. Use a better name. No functional changes. Suggested-by: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <bab090bb4b95c735bd570c9c23c6e97851b2bf7b.1768838938.git.mchehab+huawei@kernel.org>
2026-01-23docs: custom.css: prevent li marker to override textMauro Carvalho Chehab
There's currently an issue with li marker: it is set to use -1em, which actually makes it override the text. This is visible on indexes that are deep enough. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <4f28c485b72ea27c0981cd950a1819597d6736b1.1768838938.git.mchehab+huawei@kernel.org>
2026-01-23dt-bindings: spmi: spmi-mtk-pmif: Add compatible for MT8189 SoCLouis-Alexis Eyraud
Add compatible string for the SPMI block on MT8189 SoC, which is compatible with the one used on MT8195. Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://patch.msgid.link/20260123182039.224314-11-sboyd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23dt-bindings: spmi: add support for glymur-spmi-pmic-arb (arbiter v8)Jishnu Prakash
SPMI PMIC Arbiter version 8 builds upon version 7 with support for up to four SPMI buses. To achieve this, the register map was slightly rearranged. Add a new binding file and compatible string for version 8 using the name 'glymur' as the Qualcomm Technologies, Inc. Glymur SoC is the first one to use PMIC arbiter version 8. This specifies the new register ranges needed only for version 8. Also document SPMI PMIC Arbiter for Qualcomm Kaanapali SoC, by adding fallback to Glymur compatible string, as it too has version 8 functionality. Signed-off-by: David Collins <david.collins@oss.qualcomm.com> Signed-off-by: Pankaj Patil <pankaj.patil@oss.qualcomm.com> Signed-off-by: Kamal Wadhwa <kamal.wadhwa@oss.qualcomm.com> Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Jishnu Prakash <jishnu.prakash@oss.qualcomm.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://patch.msgid.link/20260123182039.224314-9-sboyd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23dt-bindings: spmi: split out common QCOM SPMI PMIC arbiter propertiesJishnu Prakash
Split out the common SPMI PMIC arbiter properties for QCOM devices into a separate file so that it can be included as a reference for devices using them. This will be needed for the upcoming PMIC v8 arbiter support patch, as the v8 arbiter also uses these common properties. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Jishnu Prakash <jishnu.prakash@oss.qualcomm.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://patch.msgid.link/20260123182039.224314-8-sboyd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23dt-bindings: spmi: Add MediaTek MT8196 SPMI 2 Arbiter/ControllersAngeloGioacchino Del Regno
Document the MT8196 SPMI 2.0 Controller with a new schema. This is a MIPI SPMI 2.0 compliant IP, composed of a main arbiter and two SPMI master controllers with Request Capable Slave (RCS) support. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://patch.msgid.link/20260123182039.224314-2-sboyd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23docs: ja_JP: Start translation of submitting-patchesAkiyoshi Kurita
Start a new Japanese translation of Documentation/process/submitting-patches.rst. Instead of moving the outdated 2011 translation (SubmittingPatches), we are starting a fresh translation of the current English document. This patch adds the initial file structure, the warning about the document being under construction, and the translation of the introduction section. The translation work will be done incrementally. Suggested-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/298d3a9c-41c1-4cbd-b4ab-d3009df9388c@gmail.com/ Signed-off-by: Akiyoshi Kurita <weibu@redadmin.org> Reviewed-by: Akira Yokosawa <akiyks@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20260120154543.2063635-1-weibu@redadmin.org>
2026-01-23KVM: SEV: Add KVM_SEV_SNP_ENABLE_REQ_CERTS commandMichael Roth
Introduce a new command for KVM_MEMORY_ENCRYPT_OP ioctl that can be used to enable fetching of endorsement key certificates from userspace via the new KVM_EXIT_SNP_REQ_CERTS exit type. Also introduce a new KVM_X86_SEV_SNP_REQ_CERTS KVM device attribute so that userspace can query whether the kernel supports the new command/exit. Suggested-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Liam Merwick <liam.merwick@oracle.com> Tested-by: Liam Merwick <liam.merwick@oracle.com> Signed-off-by: Michael Roth <michael.roth@amd.com> Link: https://patch.msgid.link/20260109231732.1160759-3-michael.roth@amd.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2026-01-23KVM: Introduce KVM_EXIT_SNP_REQ_CERTS for SNP certificate-fetchingMichael Roth
For SEV-SNP, the host can optionally provide a certificate table to the guest when it issues an attestation request to firmware (see GHCB 2.0 specification regarding "SNP Extended Guest Requests"). This certificate table can then be used to verify the endorsement key used by firmware to sign the attestation report. While it is possible for guests to obtain the certificates through other means, handling it via the host provides more flexibility in being able to keep the certificate data in sync with the endorsement key throughout host-side operations that might resulting in the endorsement key changing. In the case of KVM, userspace will be responsible for fetching the certificate table and keeping it in sync with any modifications to the endorsement key by other userspace management tools. Define a new KVM_EXIT_SNP_REQ_CERTS event where userspace is provided with the GPA of the buffer the guest has provided as part of the attestation request so that userspace can write the certificate data into it while relying on filesystem-based locking to keep the certificates up-to-date relative to the endorsement keys installed/utilized by firmware at the time the certificates are fetched. [Melody: Update the documentation scheme about how file locking is expected to happen.] Reviewed-by: Liam Merwick <liam.merwick@oracle.com> Tested-by: Liam Merwick <liam.merwick@oracle.com> Tested-by: Dionna Glaze <dionnaglaze@google.com> Signed-off-by: Michael Roth <michael.roth@amd.com> Signed-off-by: Melody Wang <huibo.wang@amd.com> Signed-off-by: Michael Roth <michael.roth@amd.com> Link: https://patch.msgid.link/20260109231732.1160759-2-michael.roth@amd.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2026-01-23Merge tag 'drm-fixes-2026-01-23' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
Pull drm fixes from Dave Airlie: "Probably a good thing you decided to do an rc8 in this round. Nothing stands out, but xe/amdgpu and mediatek all have a bunch of fixes, and then there are a few other single patches. Hopefully next week is calmer for release. xe: - Disallow bind-queue sharing across multiple VMs - Fix xe userptr in the absence of CONFIG_DEVICE_PRIVATE - Fix a missed page count update - Fix a confused argument to alloc_workqueue() - Kernel-doc fixes - Disable a workaround on VFs - Fix a job lock assert - Update wedged.mode only after successful reset policy change - Select CONFIG_DEVICE_PRIVATE when DRM_XE_GPUSVM is selected amdgpu: - fix color pipeline string leak - GC 12 fix - Misc error path fixes - DC analog fix - SMU 6 fixes - TLB flush fix - DC idle optimization fix amdkfd: - GC 11 cooperative launch fix imagination: - sync wait for logtype update completion to ensure FW trace is available bridge/synopsis: - Fix error paths in dw_dp_bind nouveau: - Add and implement missing DSB connector types, and improve unknown connector handling - Set missing atomic function ops intel: - place 3D lut at correct place in pipeline - fix color pipeline string leak vkms: - fix color pipeline string leak mediatek: - Fix platform_get_irq() error checking - HDMI DDC v2 driver fixes - dpi: Find next bridge during probe - mtk_gem: Partial refactor and use drm_gem_dma_object - dt-bindings: Fix typo 'hardwares' to 'hardware'" * tag 'drm-fixes-2026-01-23' of https://gitlab.freedesktop.org/drm/kernel: (38 commits) Revert "drm/amd/display: pause the workload setting in dm" drm/xe: Select CONFIG_DEVICE_PRIVATE when DRM_XE_GPUSVM is selected drm, drm/xe: Fix xe userptr in the absence of CONFIG_DEVICE_PRIVATE drm/i915/display: Fix color pipeline enum name leak drm/vkms: Fix color pipeline enum name leak drm/amd/display: Fix color pipeline enum name leak drm/i915/color: Place 3D LUT after CSC in plane color pipeline drm/nouveau/disp: Set drm_mode_config_funcs.atomic_(check|commit) drm/nouveau: implement missing DCB connector types; gracefully handle unknown connectors drm/nouveau: add missing DCB connector types drm/amdgpu: fix type for wptr in ring backup drm/amdgpu: Fix validating flush_gpu_tlb_pasid() drm/amd/pm: Workaround SI powertune issue on Radeon 430 (v2) drm/amd/pm: Don't clear SI SMC table when setting power limit drm/amd/pm: Fix si_dpm mmCG_THERMAL_INT setting drm/xe: Update wedged.mode only after successful reset policy change drm/xe/migrate: fix job lock assert drm/xe/uapi: disallow bind queue sharing drm/amd/display: Only poll analog connectors drm/amdgpu: fix error handling in ib_schedule() ...
2026-01-23serial: 8250_pci: Remove custom deprecated baud setting routineAndy Shevchenko
As comments mentioned this is old (and actually deprecated) interface to set custom baud rates. This interface has limitations as it only allows to set a single opaque value called "custom_divisor". If the HW needs more complex settings (like fractional divisor) it must somehow encode this. This is horrid interface that is very driver specific and not flexible. Meanwhile Linux has established way to set free baud rate settings via BOTHER [1]. With all this being said, remove deprecated interface for good. Link: https://stackoverflow.com/questions/12646324/how-can-i-set-a-custom-baud-rate-on-linux [1] Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20260122102349.2395423-3-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23dt-bindings: serial: renesas,scif: Document RZ/G3L SoCBiju Das
Add SCIF binding documentation for Renesas RZ/G3L SoC. SCIF block on the RZ/G3L is identical to one found on the RZ/G3S SoC. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com> Link: https://patch.msgid.link/20260120125232.349708-2-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23usb: typec: Expose alternate mode priority via sysfsAndrei Kuchynski
This patch introduces a priority sysfs attribute to the USB Type-C alternate mode port interface. This new attribute allows user-space to configure the numeric priority of alternate modes managing their preferred order of operation. If a new priority value conflicts with an existing mode's priority, the priorities of the conflicting mode and all subsequent modes are automatically incremented to ensure uniqueness. Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org> Reviewed-by: Benson Leung <bleung@chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://patch.msgid.link/20260119131824.2529334-4-akuchynski@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23xhci: dbc: allow setting manufacturer string through sysfsŁukasz Bartosik
Add dbc_manufacturer sysfs attribute to allow changing the manufacturer description presented by the debug device when a host requests a string descriptor with iManufacturer index. Value can only be changed while debug capability (DbC) is in disabled state to prevent USB device descriptor change while connected to a USB host. The default value is "Linux Foundation". The string length can be from 1 to 126 characters. String is terminated at null or newline, driver does not support empty string. [ mn: Improve commit message and sysfs entry documentation ] Signed-off-by: Łukasz Bartosik <ukaszb@chromium.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://patch.msgid.link/20260120181148.128712-5-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23xhci: dbc: allow setting product string through sysfsŁukasz Bartosik
Add dbc_product sysfs attribute to allow changing the product description presented by the debug device when a host requests a string descriptor with iProduct index. Value can only be changed while debug capability (DbC) is in disabled state to prevent USB device descriptor change while connected to a USB host. The default value is "Linux USB Debug Target". The field length can be from 1 to 126 characters. String is terminated at null or newline, driver does not support empty string. [ mn: Improve commit message and sysfs entry documentation ] Signed-off-by: Łukasz Bartosik <ukaszb@chromium.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://patch.msgid.link/20260120181148.128712-4-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23xhci: dbc: allow setting device serial number through sysfsŁukasz Bartosik
Add dbc_serial sysfs attribute to allow changing the serial number string descriptor presented by the debug device when a host requests a string descriptor with iSerialNumber index. Value can only be changed while debug capability (DbC) is in disabled state to prevent USB device descriptor change while connected to a USB host. The default value is "0001". The field length can be from 1 to 126 characters. String is terminated at null or newline, driver does not support empty string. [ mn: Improve commit message and sysfs entry documentation ] Signed-off-by: Łukasz Bartosik <ukaszb@chromium.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://patch.msgid.link/20260120181148.128712-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-23ASoC: dt-bindings: Convert ti,tas2552 to DT schemaRob Herring (Arm)
Convert the TI TAS2552 codec binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260121235757.370920-1-robh@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2026-01-23arm64: errata: Workaround for SI L1 downstream coherency issueLucas Wei
When software issues a Cache Maintenance Operation (CMO) targeting a dirty cache line, the CPU and DSU cluster may optimize the operation by combining the CopyBack Write and CMO into a single combined CopyBack Write plus CMO transaction presented to the interconnect (MCN). For these combined transactions, the MCN splits the operation into two separate transactions, one Write and one CMO, and then propagates the write and optionally the CMO to the downstream memory system or external Point of Serialization (PoS). However, the MCN may return an early CompCMO response to the DSU cluster before the corresponding Write and CMO transactions have completed at the external PoS or downstream memory. As a result, stale data may be observed by external observers that are directly connected to the external PoS or downstream memory. This erratum affects any system topology in which the following conditions apply: - The Point of Serialization (PoS) is located downstream of the interconnect. - A downstream observer accesses memory directly, bypassing the interconnect. Conditions: This erratum occurs only when all of the following conditions are met: 1. Software executes a data cache maintenance operation, specifically, a clean or clean&invalidate by virtual address (DC CVAC or DC CIVAC), that hits on unique dirty data in the CPU or DSU cache. This results in a combined CopyBack and CMO being issued to the interconnect. 2. The interconnect splits the combined transaction into separate Write and CMO transactions and returns an early completion response to the CPU or DSU before the write has completed at the downstream memory or PoS. 3. A downstream observer accesses the affected memory address after the early completion response is issued but before the actual memory write has completed. This allows the observer to read stale data that has not yet been updated at the PoS or downstream memory. The implementation of workaround put a second loop of CMOs at the same virtual address whose operation meet erratum conditions to wait until cache data be cleaned to PoC. This way of implementation mitigates performance penalty compared to purely duplicate original CMO. Signed-off-by: Lucas Wei <lucaswei@google.com> Signed-off-by: Will Deacon <will@kernel.org>
2026-01-23erofs: introduce the page cache share featureHongzhen Luo
Currently, reading files with different paths (or names) but the same content will consume multiple copies of the page cache, even if the content of these page caches is the same. For example, reading identical files (e.g., *.so files) from two different minor versions of container images will cost multiple copies of the same page cache, since different containers have different mount points. Therefore, sharing the page cache for files with the same content can save memory. This introduces the page cache share feature in erofs. It allocate a shared inode and use its page cache as shared. Reads for files with identical content will ultimately be routed to the page cache of the shared inode. In this way, a single page cache satisfies multiple read requests for different files with the same contents. We introduce new mount option `inode_share` to enable the page sharing mode during mounting. This option is used in conjunction with `domain_id` to share the page cache within the same trusted domain. Signed-off-by: Hongzhen Luo <hongzhen@linux.alibaba.com> Signed-off-by: Hongbo Li <lihongbo22@huawei.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2026-01-23erofs: using domain_id in the safer wayHongbo Li
Either the existing fscache usecase or the upcoming page cache sharing case, the `domain_id` should be protected as sensitive information, so we use the safer helpers to allocate, free and display domain_id. Signed-off-by: Hongbo Li <lihongbo22@huawei.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2026-01-23Merge branch arm64/for-next/cpufeature into kvmarm-master/nextMarc Zyngier
Merge arm64/for-next/cpufeature in to resolve conflicts resulting from the removal of CONFIG_PAN. * arm64/for-next/cpufeature: arm64: Add support for FEAT_{LS64, LS64_V} KVM: arm64: Enable FEAT_{LS64, LS64_V} in the supported guest arm64: Provide basic EL2 setup for FEAT_{LS64, LS64_V} usage at EL0/1 KVM: arm64: Handle DABT caused by LS64* instructions on unsupported memory KVM: arm64: Add documentation for KVM_EXIT_ARM_LDST64B KVM: arm64: Add exit to userspace on {LD,ST}64B* outside of memslots arm64: Unconditionally enable PAN support arm64: Unconditionally enable LSE support arm64: Add support for TSV110 Spectre-BHB mitigation Signed-off-by: Marc Zyngier <maz@kernel.org>
2026-01-23dt-bindings: connector: Add PCIe M.2 Mechanical Key M connectorManivannan Sadhasivam
Add the devicetree binding for PCIe M.2 Mechanical Key M connector defined in the PCI Express M.2 Specification, r4.0, sec 5.3. This connector provides interfaces like PCIe and SATA to attach the Solid State Drives (SSDs) to the host machine along with additional interfaces like USB, and SMBus for debugging and supplementary features. The connector provides a primary power supply of 3.3v, along with an optional 1.8v VIO supply for the Adapter I/O buffer circuitry operating at 1.8v sideband signaling. The connector also supplies optional signals in the form of GPIOs for fine grained power management. Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20260122-pci-m2-v6-1-575da9f97239@oss.qualcomm.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
2026-01-23dt-bindings: iio: dac: Add max22007Janani Sunil
Devicetree bindings for MAX22007 4-channel 12-bit DAC that drives a voltage or current output on each channel Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Janani Sunil <janani.sunil@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-01-23dt-bindings: crypto: Mark zynqmp-aes as DeprecatedHarsh Jain
zynqmp-aes-gcm updated to self discover, corresponding dt binding can be mark deprecated. Signed-off-by: Harsh Jain <h.jain@amd.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-01-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.19-rc7). Conflicts: drivers/net/ethernet/huawei/hinic3/hinic3_irq.c b35a6fd37a00 ("hinic3: Add adaptive IRQ coalescing with DIM") fb2bb2a1ebf7 ("hinic3: Fix netif_queue_set_napi queue_index input parameter error") https://lore.kernel.org/fc0a7fdf08789a52653e8ad05281a0a849e79206.1768915707.git.zhuyikai1@h-partners.com drivers/net/wireless/ath/ath12k/mac.c drivers/net/wireless/ath/ath12k/wifi7/hw.c 31707572108d ("wifi: ath12k: Fix wrong P2P device link id issue") c26f294fef2a ("wifi: ath12k: Move ieee80211_ops callback to the arch specific module") https://lore.kernel.org/20260114123751.6a208818@canb.auug.org.au Adjacent changes: drivers/net/wireless/ath/ath12k/mac.c 8b8d6ee53dfd ("wifi: ath12k: Fix scan state stuck in ABORTING after cancel_remain_on_channel") 914c890d3b90 ("wifi: ath12k: Add framework for hardware specific ieee80211_ops registration") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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