wireguard-linux/arch/powerpc/platforms/powermac, branch stable

Merge tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

2026-08-19T17:42:18Z

Pull driver core updates from Danilo Krummrich: "container_of: - Apply typeof_member(), remove the local __mptr variable to eliminate variable shadowing warnings on nested container_of() calls, and remove unnecessary parentheses core: - Add driver name to probe debug print for initcall_debug - Avoid repeatedly printing the same 'Fixed dependency cycle' log - Unwind device_add() on attribute creation failure in attribute_container_add_class_device() - Remove statistics group if encryption group creation fails in transport_add_class_device() debugfs: - Fix lockdown check for mmap_prepare() - Warn if file creation failed due to uninitialized debugfs device property: - Implement fw_devlink support for software nodes by adding software_node_add_links(), which creates fwnode links from DEV_PROP_REF properties to enable automatic probe ordering. Add kunit-managed fwnode helpers and test coverage - Fix infinite loop in fwnode_for_each_child_node() when the secondary fwnode has more than one child. Add test cases - Fix out-of-bounds access in software_node_get_reference_args() when called with index -1 (UINT_MAX) - Refactor to use RAII approach with __free() - Add Bartosz Golaszewski as software node reviewer firmware loader: - Fix race where a sysfs fallback request can complete before being queued as pending, leading to a use-after-free on the next fallback request - Reject 0-size built-in firmware and fail the build on empty firmware files in CONFIG_EXTRA_FIRMWARE kobject: - Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros and allow the constification of kobject attributes, enabling them to reside in read-only memory platform: - Provide platform_device_set_of_node(), platform_device_set_fwnode(), and platform_device_set_of_node_from_dev() helpers that encapsulate firmware node reference counting for dynamically allocated platform devices Convert all in-tree users that manually assigned dev.of_node or dev.fwnode, fixing a pre-existing refcount bug in powermac. Switch to counting references of all firmware node types, not only OF nodes - Unify the release path for dynamically allocated platform devices by removing platform_device_release_full(). Amend the fwnode setter API contract to warn if a primary software node is overwritten. Add KUnit tests for correct software node removal on device unregistration Rust: - Auxiliary: - Add registration_data_with() closure-based API for invariant ForLt types - Debugfs: - Migrate BinaryWriter and BinaryReaderMut trait requirements from kernel::transmute traits to zerocopy traits - Device: - Add BoundInternal device context and InternalBoundContext trait for bus abstractions that need internal access to a bound device. - Make the lifetime on Core and CoreInternal invariant to prevent coercion to shorter lifetimes - Devres: - Fix race between concurrent revokers where the losing revoker could return before the winning revoker finished dropping the inner data, causing use-after-free. - Ensure revocation is complete before the device finishes unbinding by making the synchronization bidirectional. - Add DevresLt, a wrapper around Devres that shortens 'static back to the caller's borrow scope. Implement ForLt and CovariantForLt for Bar, IoMem, and ExclusiveIoMem - Driver: - Switch from index-based to pointer-based device ID info lookup, storing static references in driver_data. Centralize device ID handling in device_id.rs, removing the open-coded ACPI/OF matching logic and duplicate ID table from driver.rs - I/O: - Make I/O regions typed (with a dynamically-sized Region type for the existing untyped case), create view types representing subregions of a mapped I/O region, and add io_project!() for safely creating subviews. - Split Io into a base trait (IoBase) and an extension trait (Io) with a blanket implementation, preventing implementers from overriding provided methods that unsafe code relies on. - Add a SysMem backend for shared system memory with volatile access, and make Coherent implement Io via an I/O view type. Add IoSysMap as sum type of Mmio and SysMem. Add copying methods (memcpy_{from,to}io()) and read_val()/write_val() for typed access. - Replace dma_read!()/dma_write!() with io_read!()/io_write!() for primitives and copying methods for aggregates; drop the old macros. Convert nova-core to use I/O projection. - Fix internal shortcut rule dispatch in the register!() macro, remove unused rule arguments, and use path fragments for alias destinations - IRQ: - Make irq::Registration compatible with lifetime-bound drivers by removing the 'static bound on Handler/ThreadedHandler and replacing Devres with direct request_irq()/free_irq() calls. Handlers can now directly own lifetime-bound device resources - PCI: - Convert IrqVectorRegistration to a lifetime-annotated owning type, giving drivers explicit control over the allocation lifetime. IrqVector embeds a resolved IrqRequest, making the conversion infallible. Remove the redundant request_irq()/request_threaded_irq() wrappers from pci::Device. - Add pci_irq_type() C helper and expose it via irq_type() on IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX. - Mark pci::Device refcount methods inline - Serdev: - Add Rust abstractions for the serial device bus, including serdev::Driver trait, serdev::Device wrapping struct serdev_device, and serdev::Adapter implementing RegistrationOps. Includes a sample driver. Markus Probst takes over as serdev maintainer for both C and Rust code - Misc: - Split ForLt into a base trait (providing the Of<'a> GAT) and an unsafe CovariantForLt subtrait guaranteeing covariance, enabling invariant types (e.g. those containing Mutex<&'bound T>) to participate in the ForLt abstraction. - Fix Coherent read past EOF returning -ERANGE instead of zero. - Fix firmware example UB by avoiding null-pointer ARef misc: - Avoid iattr allocation in kernfs listxattr by using kernfs_iattrs_noalloc(). - Unregister SoC bus on early device registration failure. - Remove unused DMA_FENCE_TRACE Kconfig symbol. - Fix /sys/module path in comment. - Refactor ISA bus init to remove nested blocks. - Remove redundant nodemask clears in numa_init(). - Add kernel-doc for fwnode_operations and sys_soc.h, mark internal property data as private for kernel-doc, and add property.h/fwnode.h to driver-api infrastructure docs. - Add MAINTAINERS entry for sys_soc.h" * tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (129 commits) rust: pci: expose the allocated interrupt type PCI: Add pci_irq_type() to query the allocated interrupt type rust: pci: remove request_irq() and request_threaded_irq() from Device rust: pci: resolve IRQ in index() and embed IrqRequest in IrqVector rust: pci: convert IrqVectorRegistration to a lifetime-managed owning type kernfs: avoid iattr allocation in listxattr rust: serdev: use ThisModule::as_ptr() instead of field access ACPI/IORT: use platform_device_set_fwnode() ACPI/APMT: use platform_device_set_fwnode() firmware_loader: do not queue completed sysfs fallback requests rust: pci: Mark Device refcount methods inline rust: irq: make Registration compatible with lifetime-bound drivers rust: net/phy: remove expansion from doc rust: dma: return zero for Coherent reads past EOF rust: io: register: use path fragment for alias destination rust: io: register: remove unused rule arguments rust: io: register: dispatch shortcut rules internally MAINTAINERS: add sys_soc.h to DRIVER CORE rust: debugfs: remove unsafe blocks from traits impl for Vec rust: debugfs: migrate debugfs traits requirements to zerocopy ...

powerpc/powermac: Simplify bootx_scan_dt_build_struct()

2026-07-31T11:36:20Z

Assign the empty string directly instead of NULL checking namep again. Signed-off-by: Thorsten Blum Reviewed-by: Christophe Leroy (CS GROUP) Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20260720231453.117271-2-thorsten.blum@linux.dev

powerpc/powermac: use platform_device_set_of_node()

2026-07-10T14:07:09Z

Ahead of reworking the reference counting logic for platform devices, encapsulate the assignment of the OF node for dynamically allocated platform devices with the provided helper. Reviewed-by: Andy Shevchenko Signed-off-by: Bartosz Golaszewski Link: https://patch.msgid.link/20260706-pdev-fwnode-ref-v3-7-1ff028e33779@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman

powerpc/powermac: fix OF node refcount

2026-07-10T14:05:21Z

Platform devices created with platform_device_alloc() call platform_device_release() when the last reference to the device's kobject is dropped. This function calls of_node_put() unconditionally. This works fine for devices created with platform_device_register_full() but users of the split approach (platform_device_alloc() + platform_device_add()) must bump the reference of the of_node they assign manually. Add the missing call to of_node_get(). Cc: stable@vger.kernel.org Fixes: 81e5d8646ff6 ("i2c/powermac: Register i2c devices from device-tree") Reviewed-by: Andy Shevchenko Signed-off-by: Bartosz Golaszewski Link: https://patch.msgid.link/20260706-pdev-fwnode-ref-v3-1-1ff028e33779@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman

powerpc/powermac: Remove pmac_low_i2c_{lock,unlock}()

2026-05-12T06:20:09Z

Commit a28d3af2a26c ("[PATCH] 2/5 powerpc: Rework PowerMac i2c part 2") removed the last calls to the pmac_low_i2c_{lock,unlock}() functions. Hence, remove these two functions. Reviewed-by: Christophe Leroy (CS GROUP) Signed-off-by: Bart Van Assche Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20260316174747.3871924-1-bvanassche@acm.org

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51Z

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28Z

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

Merge tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2025-12-06T01:29:04Z

Pull SoC driver updates from Arnd Bergmann: "This is the first half of the driver changes: - A treewide interface change to the "syscore" operations for power management, as a preparation for future Tegra specific changes - Reset controller updates with added drivers for LAN969x, eic770 and RZ/G3S SoCs - Protection of system controller registers on Renesas and Google SoCs, to prevent trivially triggering a system crash from e.g. debugfs access - soc_device identification updates on Nvidia, Exynos and Mediatek - debugfs support in the ST STM32 firewall driver - Minor updates for SoC drivers on AMD/Xilinx, Renesas, Allwinner, TI - Cleanups for memory controller support on Nvidia and Renesas" * tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (114 commits) memory: tegra186-emc: Fix missing put_bpmp Documentation: reset: Remove reset_controller_add_lookup() reset: fix BIT macro reference reset: rzg2l-usbphy-ctrl: Fix a NULL vs IS_ERR() bug in probe reset: th1520: Support reset controllers in more subsystems reset: th1520: Prepare for supporting multiple controllers dt-bindings: reset: thead,th1520-reset: Add controllers for more subsys dt-bindings: reset: thead,th1520-reset: Remove non-VO-subsystem resets reset: remove legacy reset lookup code clk: davinci: psc: drop unused reset lookup reset: rzg2l-usbphy-ctrl: Add support for RZ/G3S SoC reset: rzg2l-usbphy-ctrl: Add support for USB PWRRDY dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3S support reset: eswin: Add eic7700 reset driver dt-bindings: reset: eswin: Documentation for eic7700 SoC reset: sparx5: add LAN969x support dt-bindings: reset: microchip: Add LAN969x support soc: rockchip: grf: Add select correct PWM implementation on RK3368 soc/tegra: pmc: Add USB wake events for Tegra234 amba: tegra-ahb: Fix device leak on SMMU enable ...

powerpc/powermac: backlight: Include

2025-12-02T10:54:59Z

Include to avoid dependency on backlight header to include it. Declares of_find_node_by_name(), of_property_match_string() and of_node_put(). Signed-off-by: Thomas Zimmermann Fixes: 243ce64b2b37 ("backlight: Do not include in header file") Reported-by: Naresh Kamboju Reviewed-by: Daniel Thompson (RISCstar) Closes: https://lore.kernel.org/linuxppc-dev/CA+G9fYs8fn5URQx2+s2oNxdUgZkSrdLC0P1tNBW_n-6BaBkK2Q@mail.gmail.com/ Signed-off-by: Michael Ellerman

syscore: Pass context data to callbacks

2025-11-14T09:01:52Z

Several drivers can benefit from registering per-instance data along with the syscore operations. To achieve this, move the modifiable fields out of the syscore_ops structure and into a separate struct syscore that can be registered with the framework. Add a void * driver data field for drivers to store contextual data that will be passed to the syscore ops. Acked-by: Rafael J. Wysocki (Intel) Signed-off-by: Thierry Reding