user/sven/linux.git/include/linux/device, branch v6.12.32

devres: Introduce devm_kmemdup_array()

2025-05-29T09:03:15Z

[ Upstream commit a103b833ac3806b816bc993cba77d0b17cf801f1 ] Introduce '_array' variant of devm_kmemdup() which is more robust and consistent with alloc family of helpers. Suggested-by: Andy Shevchenko Signed-off-by: Raag Jadav Reviewed-by: Dmitry Torokhov Reviewed-by: Linus Walleij Signed-off-by: Andy Shevchenko Stable-dep-of: 7dd7f39fce00 ("ASoC: SOF: Intel: hda: Fix UAF when reloading module") Signed-off-by: Sasha Levin

driver core: Split devres APIs to device/devres.h

2025-05-29T09:03:15Z

[ Upstream commit a21cad9312767d26b5257ce0662699bb202cdda1 ] device.h is a huge header which is hard to follow and easy to miss something. Improve that by splitting devres APIs to device/devres.h. In particular this helps to speedup the build of the code that includes device.h solely for a devres APIs. While at it, cast the error pointers to __iomem using IOMEM_ERR_PTR() and fix sparse warnings. Signed-off-by: Raag Jadav Acked-by: Arnd Bergmann Reviewed-by: Greg Kroah-Hartman Signed-off-by: Andy Shevchenko Stable-dep-of: 7dd7f39fce00 ("ASoC: SOF: Intel: hda: Fix UAF when reloading module") Signed-off-by: Sasha Levin

driver core: bus: add irq_get_affinity callback to bus_type

2025-04-25T08:47:38Z

[ Upstream commit fea4952df0eeec4e1a295ebaac9f61c0065fae87 ] Introducing a callback in struct bus_type so that a subsystem can hook up the getters directly. This approach avoids exposing random getters in any subsystems APIs. Acked-by: Bjorn Helgaas Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: Ming Lei Acked-by: Greg Kroah-Hartman Signed-off-by: Daniel Wagner Link: https://lore.kernel.org/r/20241202-refactor-blk-affinity-helpers-v6-1-27211e9c2cd5@kernel.org Signed-off-by: Jens Axboe Stable-dep-of: a2d5a0072235 ("scsi: smartpqi: Use is_kdump_kernel() to check for kdump") Signed-off-by: Sasha Levin

Revert "driver core: shut down devices asynchronously"

2024-09-25T09:01:27Z

This reverts commit 8064952c65045f05ee2671fe437770e50c151776. The series is being reverted before -rc1 as there are still reports of lockups on shutdown, so it's not quite ready for "prime time." Reported-by: Andrey Skvortsov Link: https://lore.kernel.org/r/ZvMkkhyJrohaajuk@skv.local Cc: Christoph Hellwig Cc: David Jeffery Cc: Keith Busch Cc: Laurence Oberman Cc: Nathan Chancellor Cc: Sagi Grimberg Cc: Stuart Hayes Signed-off-by: Greg Kroah-Hartman

driver core: shut down devices asynchronously

2024-09-03T11:06:43Z

Add code to allow asynchronous shutdown of devices, ensuring that each device is shut down before its parents & suppliers. Only devices with drivers that have async_shutdown_enable enabled will be shut down asynchronously. This can dramatically reduce system shutdown/reboot time on systems that have multiple devices that take many seconds to shut down (like certain NVMe drives). On one system tested, the shutdown time went from 11 minutes without this patch to 55 seconds with the patch. Signed-off-by: Stuart Hayes Signed-off-by: David Jeffery Reviewed-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Reviewed-by: Keith Busch Tested-by: Keith Busch Link: https://lore.kernel.org/r/20240822202805.6379-4-stuart.w.hayes@gmail.com Signed-off-by: Greg Kroah-Hartman

drivers/base: Introduce device_match_t for device finding APIs

2024-09-03T10:48:51Z

There are several drivers/base APIs for finding a specific device, and they currently use the following good type for the @match parameter: int (*match)(struct device *dev, const void *data) Since these operations do not modify the caller-provided @*data, this type is worthy of a dedicated typedef: typedef int (*device_match_t)(struct device *dev, const void *data) Advantages of using device_match_t: - Shorter API declarations and definitions - Prevent further APIs from using a bad type for @match So introduce device_match_t and apply it to the existing (bus|class|driver|auxiliary)_find_device() APIs. Signed-off-by: Zijun Hu Link: https://lore.kernel.org/r/20240813-dev_match_api-v3-1-6c6878a99b9f@quicinc.com Signed-off-by: Greg Kroah-Hartman

driver core: make driver_find_device() take a const *

2024-07-10T07:41:57Z

The function driver_find_device() does not modify the struct device_driver structure directly, so it is safe to be marked as a constant pointer type. As that is fixed up, also change the function signature on the inline functions that call this, which are: driver_find_device_by_name() driver_find_device_by_of_node() driver_find_device_by_devt() driver_find_next_device() driver_find_device_by_acpi_dev() Cc: "Rafael J. Wysocki" Link: https://lore.kernel.org/r/2024070849-broken-front-9eb5@gregkh Signed-off-by: Greg Kroah-Hartman

driver core: make driver_[create|remove]_file take a const *

2024-07-10T07:36:02Z

The functions driver_create_file() and driver_remove_file() do not modify the struct device_driver structure directly, so they are safe to be marked as a constant pointer type. Cc: "Rafael J. Wysocki" Link: https://lore.kernel.org/r/2024070844-volley-hatchling-c812@gregkh Signed-off-by: Greg Kroah-Hartman

driver core: have match() callback in struct bus_type take a const *

2024-07-03T13:16:54Z

In the match() callback, the struct device_driver * should not be changed, so change the function callback to be a const *. This is one step of many towards making the driver core safe to have struct device_driver in read-only memory. Because the match() callback is in all busses, all busses are modified to handle this properly. This does entail switching some container_of() calls to container_of_const() to properly handle the constant *. For some busses, like PCI and USB and HV, the const * is cast away in the match callback as those busses do want to modify those structures at this point in time (they have a local lock in the driver structure.) That will have to be changed in the future if they wish to have their struct device * in read-only-memory. Cc: Rafael J. Wysocki Reviewed-by: Alex Elder Acked-by: Sumit Garg Link: https://lore.kernel.org/r/2024070136-wrongdoer-busily-01e8@gregkh Signed-off-by: Greg Kroah-Hartman

Merge tag 'iommu-updates-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

2024-01-18T23:16:57Z

Pull iommu updates from Joerg Roedel: "Core changes: - Fix race conditions in device probe path - Retire IOMMU bus_ops - Support for passing custom allocators to page table drivers - Clean up Kconfig around IOMMU_SVA - Support for sharing SVA domains with all devices bound to a mm - Firmware data parsing cleanup - Tracing improvements for iommu-dma code - Some smaller fixes and cleanups ARM-SMMU drivers: - Device-tree binding updates: - Add additional compatible strings for Qualcomm SoCs - Document Adreno clocks for Qualcomm's SM8350 SoC - SMMUv2: - Implement support for the ->domain_alloc_paging() callback - Ensure Secure context is restored following suspend of Qualcomm SMMU implementation - SMMUv3: - Disable stalling mode for the "quiet" context descriptor - Minor refactoring and driver cleanups Intel VT-d driver: - Cleanup and refactoring AMD IOMMU driver: - Improve IO TLB invalidation logic - Small cleanups and improvements Rockchip IOMMU driver: - DT binding update to add Rockchip RK3588 Apple DART driver: - Apple M1 USB4/Thunderbolt DART support - Cleanups Virtio IOMMU driver: - Add support for iotlb_sync_map - Enable deferred IO TLB flushes" * tag 'iommu-updates-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (66 commits) iommu: Don't reserve 0-length IOVA region iommu/vt-d: Move inline helpers to header files iommu/vt-d: Remove unused vcmd interfaces iommu/vt-d: Remove unused parameter of intel_pasid_setup_pass_through() iommu/vt-d: Refactor device_to_iommu() to retrieve iommu directly iommu/sva: Fix memory leak in iommu_sva_bind_device() dt-bindings: iommu: rockchip: Add Rockchip RK3588 iommu/dma: Trace bounce buffer usage when mapping buffers iommu/arm-smmu: Convert to domain_alloc_paging() iommu/arm-smmu: Pass arm_smmu_domain to internal functions iommu/arm-smmu: Implement IOMMU_DOMAIN_BLOCKED iommu/arm-smmu: Convert to a global static identity domain iommu/arm-smmu: Reorganize arm_smmu_domain_add_master() iommu/arm-smmu-v3: Remove ARM_SMMU_DOMAIN_NESTED iommu/arm-smmu-v3: Master cannot be NULL in arm_smmu_write_strtab_ent() iommu/arm-smmu-v3: Add a type for the STE iommu/arm-smmu-v3: disable stall for quiet_cd iommu/qcom: restore IOMMU state if needed iommu/arm-smmu-qcom: Add QCM2290 MDSS compatible iommu/arm-smmu-qcom: Add missing GMU entry to match table ...