diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-06-15 12:41:17 +0530 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-06-15 12:41:17 +0530 |
| commit | 36808d5e983985bbda87e01059cccc071fe3ec8d (patch) | |
| tree | fe89e03319a2eeacabced24f1e6b96123ad527f9 /include | |
| parent | 5504ce0317f777dcf102751c3e518284226fc2e1 (diff) | |
| parent | fe221742e388bea3f5856b5d9b2cb0a037020ea4 (diff) | |
Merge tag 'driver-core-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"Deferred probe:
- Fix race where deferred probe timeout work could be permanently
canceled by using mod_delayed_work()
- Fix missing jiffies conversion in deferred_probe_extend_timeout()
- Guard timeout extension with delayed_work_pending() to prevent
premature firing
- Use system_percpu_wq instead of the deprecated system_wq
- Update deferred_probe_timeout documentation
device:
- Replace direct struct device bitfield access (can_match, dma_iommu,
dma_skip_sync, dma_ops_bypass, state_synced, dma_coherent,
of_node_reused, offline, offline_disabled) with flag-based
accessors using bit operations
- Reject devices with unregistered buses
- Delete unused DEVICE_ATTR_PREALLOC()
- Add low-level device attribute macros with const show/store
callbacks, allowing device attributes to reside in read-only memory
- Move core device attributes to read-only memory
- Constify group array pointers in driver_add_groups() /
driver_remove_groups(), struct bus_type, and struct device_driver
device property:
- Fix fwnode reference leak in fwnode_graph_get_endpoint_by_id()
- Initialize all fields of fwnode_handle in fwnode_init()
- Provide swnode_get()/swnode_put() wrappers around kobject_get/put()
- Allow passing struct software_node_ref_args pointers directly to
PROPERTY_ENTRY_REF()
driver_override:
- Migrate amba, cdx, vmbus, and rpmsg to the generic driver_override
infrastructure, fixing a UAF from unsynchronized access to
driver_override in bus match() callbacks
- Remove the now-unused driver_set_override()
firmware loader:
- Fix recursive lock deadlock in device_cache_fw_images() when async
work falls back to synchronous execution
- Fix device reference leak in firmware_upload_register()
platform:
- Pass KBUILD_MODNAME through the platform driver registration macro
to create module symlinks in sysfs for built-in drivers; move
module_kset initialization to a pure_initcall and tegra cbb
registration to core_initcall to ensure correct ordering
- Pass THIS_MODULE implicitly through a coresight_init_driver() macro
sysfs:
- Upgrade OOB write detection in sysfs_kf_seq_show() from printk to
WARN
- Add return value clamping to sysfs_kf_read()
Rust:
- ACPI:
Fix missing match data for PRP0001 by exporting
acpi_of_match_device()
- Auxiliary:
Replace drvdata() with dedicated registration data on
auxiliary_device. drvdata() exposed the driver's bus device private
data beyond the driver's own scope, creating ordering constraints
and forcing the data to outlive all registrations that access it.
Registration data is instead scoped structurally to the
Registration object, making lifecycle ordering enforced by
construction rather than convention.
- Rust-native device driver lifetimes (HRT):
Allow Rust device drivers to carry a lifetime parameter on their
bus device private data, tied to the device binding scope -- the
interval during which a bus device is bound to a driver. Device
resources like pci::Bar<'a> and IoMem<'a> can be stored directly in
the driver's bus device private data with a lifetime bounded by the
binding scope, so the compiler enforces at build time that they do
not outlive the binding. This removes Devres indirection from every
access site and eliminates try_access() failure paths in
destructors.
Bus driver traits use a Generic Associated Type (GAT) Data<'bound>
to introduce the lifetime on the private data, rather than
parameterizing the Driver trait itself. Auxiliary registration
data, where the lifetime is not introduced by a trait callback but
must be threaded through Registration, uses the ForLt trait (a
type-level abstraction for types generic over a lifetime).
Misc:
- Fix DT overlayed devices not probing by reverting the broken
treewide overlay fix and re-running fw_devlink consumer pickup when
an overlay is applied to a bound device
- Use root_device_register() for faux bus root device; add sanity
check for failed bus init
- Fix dev_has_sync_state() data race with READ_ONCE() and move it to
base.h
- Avoid spurious device_links warning when removing a device while
its supplier is unbinding
- Switch ISA bus to dynamic root device
- Fix suspicious RCU usage in kernfs_put()
- Remove devcoredump exit callback
- Constify devfreq_event_class"
* tag 'driver-core-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/driver-core/driver-core: (81 commits)
software node: allow passing reference args to PROPERTY_ENTRY_REF()
driver core: platform: set mod_name in driver registration
coresight: pass THIS_MODULE implicitly through a macro
kernel: param: initialize module_kset in a pure_initcall
soc/tegra: cbb: Move driver registration from pure_initcall to core_initcall
firmware_loader: Fix recursive lock in device_cache_fw_images()
driver core: Use system_percpu_wq instead of system_wq
driver core: remove driver_set_override()
rpmsg: use generic driver_override infrastructure
Drivers: hv: vmbus: use generic driver_override infrastructure
cdx: use generic driver_override infrastructure
amba: use generic driver_override infrastructure
rust: devres: add 'static bound to Devres<T>
samples: rust: rust_driver_auxiliary: showcase lifetime-bound registration data
rust: auxiliary: generalize Registration over ForLt
rust: types: add `ForLt` trait for higher-ranked lifetime support
gpu: nova-core: separate driver type from driver data
samples: rust: rust_driver_pci: use HRT lifetime for Bar
rust: io: make IoMem and ExclusiveIoMem lifetime-parameterized
rust: pci: make Bar lifetime-parameterized
...
Diffstat (limited to 'include')
| -rw-r--r-- | include/acpi/acpi_bus.h | 11 | ||||
| -rw-r--r-- | include/linux/amba/bus.h | 5 | ||||
| -rw-r--r-- | include/linux/auxiliary_bus.h | 4 | ||||
| -rw-r--r-- | include/linux/cdx/cdx_bus.h | 4 | ||||
| -rw-r--r-- | include/linux/coresight.h | 7 | ||||
| -rw-r--r-- | include/linux/device.h | 221 | ||||
| -rw-r--r-- | include/linux/device/bus.h | 6 | ||||
| -rw-r--r-- | include/linux/device/class.h | 2 | ||||
| -rw-r--r-- | include/linux/device/driver.h | 10 | ||||
| -rw-r--r-- | include/linux/dma-map-ops.h | 6 | ||||
| -rw-r--r-- | include/linux/dma-mapping.h | 2 | ||||
| -rw-r--r-- | include/linux/fwnode.h | 3 | ||||
| -rw-r--r-- | include/linux/hyperv.h | 5 | ||||
| -rw-r--r-- | include/linux/iommu-dma.h | 3 | ||||
| -rw-r--r-- | include/linux/platform_device.h | 17 | ||||
| -rw-r--r-- | include/linux/property.h | 8 | ||||
| -rw-r--r-- | include/linux/rpmsg.h | 4 |
17 files changed, 189 insertions, 129 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 7e57f9698f7c..714d111d8053 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -189,6 +189,10 @@ struct acpi_driver { * ----------- */ +bool acpi_of_match_device(const struct acpi_device *adev, + const struct of_device_id *of_match_table, + const struct of_device_id **of_id); + /* Status (_STA) */ struct acpi_device_status { @@ -996,6 +1000,13 @@ int acpi_scan_add_dep(acpi_handle handle, struct acpi_handle_list *dep_devices); u32 arch_acpi_add_auto_dep(acpi_handle handle); #else /* CONFIG_ACPI */ +static inline bool acpi_of_match_device(const struct acpi_device *adev, + const struct of_device_id *of_match_table, + const struct of_device_id **of_id) +{ + return false; +} + static inline int register_acpi_bus_type(void *bus) { return 0; } static inline int unregister_acpi_bus_type(void *bus) { return 0; } diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h index 9946276aff73..6c54d5c0d21f 100644 --- a/include/linux/amba/bus.h +++ b/include/linux/amba/bus.h @@ -71,11 +71,6 @@ struct amba_device { unsigned int cid; struct amba_cs_uci_id uci; unsigned int irq[AMBA_NR_IRQS]; - /* - * Driver name to force a match. Do not set directly, because core - * frees it. Use driver_set_override() to set or clear it. - */ - const char *driver_override; }; struct amba_driver { diff --git a/include/linux/auxiliary_bus.h b/include/linux/auxiliary_bus.h index bc09b55e3682..4e1ad8ccbcdd 100644 --- a/include/linux/auxiliary_bus.h +++ b/include/linux/auxiliary_bus.h @@ -62,6 +62,9 @@ * @sysfs.irqs: irqs xarray contains irq indices which are used by the device, * @sysfs.lock: Synchronize irq sysfs creation, * @sysfs.irq_dir_exists: whether "irqs" directory exists, + * @registration_data_rust: private data owned by the registering (parent) + * driver; valid for as long as the device is + * registered with the driver core, * * An auxiliary_device represents a part of its parent device's functionality. * It is given a name that, combined with the registering drivers @@ -148,6 +151,7 @@ struct auxiliary_device { struct mutex lock; /* Synchronize irq sysfs creation */ bool irq_dir_exists; } sysfs; + void *registration_data_rust; }; /** diff --git a/include/linux/cdx/cdx_bus.h b/include/linux/cdx/cdx_bus.h index b1ba97f6c9ad..f54770f110bc 100644 --- a/include/linux/cdx/cdx_bus.h +++ b/include/linux/cdx/cdx_bus.h @@ -137,9 +137,6 @@ struct cdx_controller { * @enabled: is this bus enabled * @msi_dev_id: MSI Device ID associated with CDX device * @num_msi: Number of MSI's supported by the device - * @driver_override: driver name to force a match; do not set directly, - * because core frees it; use driver_set_override() to - * set or clear it. * @irqchip_lock: lock to synchronize irq/msi configuration * @msi_write_pending: MSI write pending for this device */ @@ -165,7 +162,6 @@ struct cdx_device { bool enabled; u32 msi_dev_id; u32 num_msi; - const char *driver_override; struct mutex irqchip_lock; bool msi_write_pending; }; diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 2131febebee9..1cf85d772bea 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -691,8 +691,11 @@ coresight_find_output_type(struct coresight_platform_data *pdata, enum coresight_dev_type type, union coresight_dev_subtype subtype); -int coresight_init_driver(const char *drv, struct amba_driver *amba_drv, - struct platform_driver *pdev_drv, struct module *owner); +int coresight_init_driver_with_owner(const char *drv, struct amba_driver *amba_drv, + struct platform_driver *pdev_drv, struct module *owner, + const char *mod_name); +#define coresight_init_driver(drv, amba_drv, pdev_drv) \ + coresight_init_driver_with_owner(drv, amba_drv, pdev_drv, THIS_MODULE, KBUILD_MODNAME) void coresight_remove_driver(struct amba_driver *amba_drv, struct platform_driver *pdev_drv); diff --git a/include/linux/device.h b/include/linux/device.h index 9c8fde6a3d86..7b2baffdd2f5 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -38,7 +38,6 @@ struct device_private; struct device_driver; struct driver_private; struct module; -struct class; struct subsys_private; struct device_node; struct fwnode_handle; @@ -104,10 +103,18 @@ struct device_type { */ struct device_attribute { struct attribute attr; - ssize_t (*show)(struct device *dev, struct device_attribute *attr, - char *buf); - ssize_t (*store)(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count); + __SYSFS_FUNCTION_ALTERNATIVE( + ssize_t (*show)(struct device *dev, struct device_attribute *attr, + char *buf); + ssize_t (*show_const)(struct device *dev, const struct device_attribute *attr, + char *buf); + ); + __SYSFS_FUNCTION_ALTERNATIVE( + ssize_t (*store)(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count); + ssize_t (*store_const)(struct device *dev, const struct device_attribute *attr, + const char *buf, size_t count); + ); }; /** @@ -135,6 +142,77 @@ ssize_t device_store_bool(struct device *dev, struct device_attribute *attr, ssize_t device_show_string(struct device *dev, struct device_attribute *attr, char *buf); +typedef ssize_t __device_show_handler_const(struct device *dev, const struct device_attribute *attr, + char *buf); +typedef ssize_t __device_store_handler_const(struct device *dev, const struct device_attribute *attr, + const char *buf, size_t count); + +#ifdef CONFIG_CFI + +#define __DEVICE_ATTR_SHOW_STORE(_show, _store) \ + .show = _Generic(_show, \ + __device_show_handler_const * : NULL, \ + default : _show \ + ), \ + .show_const = _Generic(_show, \ + __device_show_handler_const * : _show, \ + default : NULL \ + ), \ + .store = _Generic(_store, \ + __device_store_handler_const * : NULL, \ + default : _store \ + ), \ + .store_const = _Generic(_store, \ + __device_store_handler_const * : _store, \ + default : NULL \ + ), + +#else + +#define __DEVICE_ATTR_SHOW_STORE(_show, _store) \ + .show = _Generic(_show, \ + __device_show_handler_const * : (void *)_show, \ + default : _show \ + ), \ + .store = _Generic(_store, \ + __device_store_handler_const * : (void *)_store, \ + default : _store \ + ), \ + +#endif + + +#define __DEVICE_ATTR(_name, _mode, _show, _store) { \ + .attr = {.name = __stringify(_name), \ + .mode = VERIFY_OCTAL_PERMISSIONS(_mode) }, \ + __DEVICE_ATTR_SHOW_STORE(_show, _store) \ +} + +#define __DEVICE_ATTR_RO_MODE(_name, _mode) \ + __DEVICE_ATTR(_name, _mode, _name##_show, NULL) + +#define __DEVICE_ATTR_RO(_name) \ + __DEVICE_ATTR_RO_MODE(_name, 0444) + +#define __DEVICE_ATTR_WO(_name) \ + __DEVICE_ATTR(_name, 0200, NULL, _name##_store) + +#define __DEVICE_ATTR_RW_MODE(_name, _mode) \ + __DEVICE_ATTR(_name, _mode, _name##_show, _name##_store) + +#define __DEVICE_ATTR_RW(_name) \ + __DEVICE_ATTR_RW_MODE(_name, 0644) + +#ifdef CONFIG_DEBUG_LOCK_ALLOC +#define __DEVICE_ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) { \ + .attr = {.name = __stringify(_name), .mode = _mode, \ + .ignore_lockdep = true }, \ + __DEVICE_ATTR_SHOW_STORE(_show, _store) \ +} +#else +#define __DEVICE_ATTR_IGNORE_LOCKDEP __DEVICE_ATTR +#endif + /** * DEVICE_ATTR - Define a device attribute. * @_name: Attribute name. @@ -155,20 +233,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, * }; */ #define DEVICE_ATTR(_name, _mode, _show, _store) \ - struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store) - -/** - * DEVICE_ATTR_PREALLOC - Define a preallocated device attribute. - * @_name: Attribute name. - * @_mode: File mode. - * @_show: Show handler. Optional, but mandatory if attribute is readable. - * @_store: Store handler. Optional, but mandatory if attribute is writable. - * - * Like DEVICE_ATTR(), but ``SYSFS_PREALLOC`` is set on @_mode. - */ -#define DEVICE_ATTR_PREALLOC(_name, _mode, _show, _store) \ - struct device_attribute dev_attr_##_name = \ - __ATTR_PREALLOC(_name, _mode, _show, _store) + struct device_attribute dev_attr_##_name = __DEVICE_ATTR(_name, _mode, _show, _store) /** * DEVICE_ATTR_RW - Define a read-write device attribute. @@ -178,7 +243,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, * and @_store is <_name>_store. */ #define DEVICE_ATTR_RW(_name) \ - struct device_attribute dev_attr_##_name = __ATTR_RW(_name) + struct device_attribute dev_attr_##_name = __DEVICE_ATTR_RW(_name) /** * DEVICE_ATTR_ADMIN_RW - Define an admin-only read-write device attribute. @@ -187,7 +252,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, * Like DEVICE_ATTR_RW(), but @_mode is 0600. */ #define DEVICE_ATTR_ADMIN_RW(_name) \ - struct device_attribute dev_attr_##_name = __ATTR_RW_MODE(_name, 0600) + struct device_attribute dev_attr_##_name = __DEVICE_ATTR_RW_MODE(_name, 0600) /** * DEVICE_ATTR_RW_NAMED - Define a read-write device attribute with a sysfs name @@ -201,8 +266,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, #define DEVICE_ATTR_RW_NAMED(_name, _attrname) \ struct device_attribute dev_attr_##_name = { \ .attr = { .name = _attrname, .mode = 0644 }, \ - .show = _name##_show, \ - .store = _name##_store, \ + __DEVICE_ATTR_SHOW_STORE(_name##_show, _name##_store) \ } /** @@ -212,7 +276,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, * Like DEVICE_ATTR(), but @_mode is 0444 and @_show is <_name>_show. */ #define DEVICE_ATTR_RO(_name) \ - struct device_attribute dev_attr_##_name = __ATTR_RO(_name) + struct device_attribute dev_attr_##_name = __DEVICE_ATTR_RO(_name) /** * DEVICE_ATTR_ADMIN_RO - Define an admin-only readable device attribute. @@ -221,7 +285,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, * Like DEVICE_ATTR_RO(), but @_mode is 0400. */ #define DEVICE_ATTR_ADMIN_RO(_name) \ - struct device_attribute dev_attr_##_name = __ATTR_RO_MODE(_name, 0400) + struct device_attribute dev_attr_##_name = __DEVICE_ATTR_RO_MODE(_name, 0400) /** * DEVICE_ATTR_RO_NAMED - Define a read-only device attribute with a sysfs name @@ -235,7 +299,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, #define DEVICE_ATTR_RO_NAMED(_name, _attrname) \ struct device_attribute dev_attr_##_name = { \ .attr = { .name = _attrname, .mode = 0444 }, \ - .show = _name##_show, \ + __DEVICE_ATTR_SHOW_STORE(_name##_show, NULL) \ } /** @@ -245,7 +309,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, * Like DEVICE_ATTR(), but @_mode is 0200 and @_store is <_name>_store. */ #define DEVICE_ATTR_WO(_name) \ - struct device_attribute dev_attr_##_name = __ATTR_WO(_name) + struct device_attribute dev_attr_##_name = __DEVICE_ATTR_WO(_name) /** * DEVICE_ATTR_WO_NAMED - Define a read-only device attribute with a sysfs name @@ -259,7 +323,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, #define DEVICE_ATTR_WO_NAMED(_name, _attrname) \ struct device_attribute dev_attr_##_name = { \ .attr = { .name = _attrname, .mode = 0200 }, \ - .store = _name##_store, \ + __DEVICE_ATTR_SHOW_STORE(NULL, _name##_store) \ } /** @@ -273,7 +337,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, */ #define DEVICE_ULONG_ATTR(_name, _mode, _var) \ struct dev_ext_attribute dev_attr_##_name = \ - { __ATTR(_name, _mode, device_show_ulong, device_store_ulong), &(_var) } + { __DEVICE_ATTR(_name, _mode, device_show_ulong, device_store_ulong), &(_var) } /** * DEVICE_INT_ATTR - Define a device attribute backed by an int. @@ -285,7 +349,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, */ #define DEVICE_INT_ATTR(_name, _mode, _var) \ struct dev_ext_attribute dev_attr_##_name = \ - { __ATTR(_name, _mode, device_show_int, device_store_int), &(_var) } + { __DEVICE_ATTR(_name, _mode, device_show_int, device_store_int), &(_var) } /** * DEVICE_BOOL_ATTR - Define a device attribute backed by a bool. @@ -297,7 +361,7 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, */ #define DEVICE_BOOL_ATTR(_name, _mode, _var) \ struct dev_ext_attribute dev_attr_##_name = \ - { __ATTR(_name, _mode, device_show_bool, device_store_bool), &(_var) } + { __DEVICE_ATTR(_name, _mode, device_show_bool, device_store_bool), &(_var) } /** * DEVICE_STRING_ATTR_RO - Define a device attribute backed by a r/o string. @@ -310,11 +374,11 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, */ #define DEVICE_STRING_ATTR_RO(_name, _mode, _var) \ struct dev_ext_attribute dev_attr_##_name = \ - { __ATTR(_name, (_mode) & ~0222, device_show_string, NULL), (_var) } + { __DEVICE_ATTR(_name, (_mode) & ~0222, device_show_string, NULL), (_var) } #define DEVICE_ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) \ struct device_attribute dev_attr_##_name = \ - __ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) + __DEVICE_ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) int device_create_file(struct device *device, const struct device_attribute *entry); @@ -512,10 +576,40 @@ struct device_physical_location { * * @DEV_FLAG_READY_TO_PROBE: If set then device_add() has finished enough * initialization that probe could be called. + * @DEV_FLAG_CAN_MATCH: The device has matched with a driver at least once or it + * is in a bus (like AMBA) which can't check for matching drivers + * until other devices probe successfully. + * @DEV_FLAG_DMA_IOMMU: Device is using default IOMMU implementation for DMA and + * doesn't rely on dma_ops structure. + * @DEV_FLAG_DMA_SKIP_SYNC: DMA sync operations can be skipped for coherent + * buffers. + * @DEV_FLAG_DMA_OPS_BYPASS: If set then the dma_ops are bypassed for the + * streaming DMA operations (->map_* / ->unmap_* / ->sync_*), and + * optional (if the coherent mask is large enough) also for dma + * allocations. This flag is managed by the dma ops instance from + * ->dma_supported. + * @DEV_FLAG_STATE_SYNCED: The hardware state of this device has been synced to + * match the software state of this device by calling the + * driver/bus sync_state() callback. + * @DEV_FLAG_DMA_COHERENT: This particular device is dma coherent, even if the + * architecture supports non-coherent devices. + * @DEV_FLAG_OF_NODE_REUSED: Set if the device-tree node is shared with an + * ancestor device. + * @DEV_FLAG_OFFLINE_DISABLED: If set, the device is permanently online. + * @DEV_FLAG_OFFLINE: Set after successful invocation of bus type's .offline(). * @DEV_FLAG_COUNT: Number of defined struct_device_flags. */ enum struct_device_flags { DEV_FLAG_READY_TO_PROBE = 0, + DEV_FLAG_CAN_MATCH = 1, + DEV_FLAG_DMA_IOMMU = 2, + DEV_FLAG_DMA_SKIP_SYNC = 3, + DEV_FLAG_DMA_OPS_BYPASS = 4, + DEV_FLAG_STATE_SYNCED = 5, + DEV_FLAG_DMA_COHERENT = 6, + DEV_FLAG_OF_NODE_REUSED = 7, + DEV_FLAG_OFFLINE_DISABLED = 8, + DEV_FLAG_OFFLINE = 9, DEV_FLAG_COUNT }; @@ -594,27 +688,6 @@ enum struct_device_flags { * @removable: Whether the device can be removed from the system. This * should be set by the subsystem / bus driver that discovered * the device. - * - * @offline_disabled: If set, the device is permanently online. - * @offline: Set after successful invocation of bus type's .offline(). - * @of_node_reused: Set if the device-tree node is shared with an ancestor - * device. - * @state_synced: The hardware state of this device has been synced to match - * the software state of this device by calling the driver/bus - * sync_state() callback. - * @can_match: The device has matched with a driver at least once or it is in - * a bus (like AMBA) which can't check for matching drivers until - * other devices probe successfully. - * @dma_coherent: this particular device is dma coherent, even if the - * architecture supports non-coherent devices. - * @dma_ops_bypass: If set to %true then the dma_ops are bypassed for the - * streaming DMA operations (->map_* / ->unmap_* / ->sync_*), - * and optionall (if the coherent mask is large enough) also - * for dma allocations. This flag is managed by the dma ops - * instance from ->dma_supported. - * @dma_skip_sync: DMA sync operations can be skipped for coherent buffers. - * @dma_iommu: Device is using default IOMMU implementation for DMA and - * doesn't rely on dma_ops structure. * @flags: DEV_FLAG_XXX flags. Use atomic bitfield operations to modify. * * At the lowest level, every device in a Linux system is represented by an @@ -719,26 +792,6 @@ struct device { enum device_removable removable; - bool offline_disabled:1; - bool offline:1; - bool of_node_reused:1; - bool state_synced:1; - bool can_match:1; -#if defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE) || \ - defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU) || \ - defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU_ALL) - bool dma_coherent:1; -#endif -#ifdef CONFIG_DMA_OPS_BYPASS - bool dma_ops_bypass : 1; -#endif -#ifdef CONFIG_DMA_NEED_SYNC - bool dma_skip_sync:1; -#endif -#ifdef CONFIG_IOMMU_DMA - bool dma_iommu:1; -#endif - DECLARE_BITMAP(flags, DEV_FLAG_COUNT); }; @@ -765,6 +818,15 @@ static inline bool dev_test_and_set_##accessor_name(struct device *dev) \ } __create_dev_flag_accessors(ready_to_probe, DEV_FLAG_READY_TO_PROBE); +__create_dev_flag_accessors(can_match, DEV_FLAG_CAN_MATCH); +__create_dev_flag_accessors(dma_iommu, DEV_FLAG_DMA_IOMMU); +__create_dev_flag_accessors(dma_skip_sync, DEV_FLAG_DMA_SKIP_SYNC); +__create_dev_flag_accessors(dma_ops_bypass, DEV_FLAG_DMA_OPS_BYPASS); +__create_dev_flag_accessors(state_synced, DEV_FLAG_STATE_SYNCED); +__create_dev_flag_accessors(dma_coherent, DEV_FLAG_DMA_COHERENT); +__create_dev_flag_accessors(of_node_reused, DEV_FLAG_OF_NODE_REUSED); +__create_dev_flag_accessors(offline_disabled, DEV_FLAG_OFFLINE_DISABLED); +__create_dev_flag_accessors(offline, DEV_FLAG_OFFLINE); #undef __create_dev_flag_accessors @@ -1063,17 +1125,6 @@ static inline void device_lock_assert(struct device *dev) lockdep_assert_held(&dev->mutex); } -static inline bool dev_has_sync_state(struct device *dev) -{ - if (!dev) - return false; - if (dev->driver && dev->driver->sync_state) - return true; - if (dev->bus && dev->bus->sync_state) - return true; - return false; -} - static inline int dev_set_drv_sync_state(struct device *dev, void (*fn)(struct device *dev)) { diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h index c1b463cd6464..a38f7229b8f4 100644 --- a/include/linux/device/bus.h +++ b/include/linux/device/bus.h @@ -83,9 +83,9 @@ struct fwnode_handle; struct bus_type { const char *name; const char *dev_name; - const struct attribute_group **bus_groups; - const struct attribute_group **dev_groups; - const struct attribute_group **drv_groups; + const struct attribute_group *const *bus_groups; + const struct attribute_group *const *dev_groups; + const struct attribute_group *const *drv_groups; int (*match)(struct device *dev, const struct device_driver *drv); int (*uevent)(const struct device *dev, struct kobj_uevent_env *env); diff --git a/include/linux/device/class.h b/include/linux/device/class.h index 78ab8d2b3e30..9db1d61ba743 100644 --- a/include/linux/device/class.h +++ b/include/linux/device/class.h @@ -34,7 +34,7 @@ struct fwnode_handle; * @class_release: Called to release this class. * @dev_release: Called to release the device. * @shutdown_pre: Called at shut-down time before driver shutdown. - * @ns_type: Callbacks so sysfs can detemine namespaces. + * @ns_type: Callbacks so sysfs can determine namespaces. * @namespace: Namespace of the device belongs to this class. * @get_ownership: Allows class to specify uid/gid of the sysfs directories * for the devices belonging to the class. Usually tied to diff --git a/include/linux/device/driver.h b/include/linux/device/driver.h index bbc67ec513ed..38048e74d10a 100644 --- a/include/linux/device/driver.h +++ b/include/linux/device/driver.h @@ -114,8 +114,8 @@ struct device_driver { void (*shutdown) (struct device *dev); int (*suspend) (struct device *dev, pm_message_t state); int (*resume) (struct device *dev); - const struct attribute_group **groups; - const struct attribute_group **dev_groups; + const struct attribute_group *const *groups; + const struct attribute_group *const *dev_groups; const struct dev_pm_ops *pm; void (*coredump) (struct device *dev); @@ -123,8 +123,8 @@ struct device_driver { struct driver_private *p; struct { /* - * Called after remove() and after all devres entries have been - * processed. This is a Rust only callback. + * Called after remove() but before devres entries are released. + * This is a Rust only callback. */ void (*post_unbind_rust)(struct device *dev); } p_cb; @@ -160,8 +160,6 @@ int __must_check driver_create_file(const struct device_driver *driver, void driver_remove_file(const struct device_driver *driver, const struct driver_attribute *attr); -int driver_set_override(struct device *dev, const char **override, - const char *s, size_t len); int __must_check driver_for_each_device(struct device_driver *drv, struct device *start, void *data, device_iter_t fn); struct device *driver_find_device(const struct device_driver *drv, diff --git a/include/linux/dma-map-ops.h b/include/linux/dma-map-ops.h index 6a1832a73cad..bcb5b5428aea 100644 --- a/include/linux/dma-map-ops.h +++ b/include/linux/dma-map-ops.h @@ -225,7 +225,7 @@ int dma_direct_set_offset(struct device *dev, phys_addr_t cpu_start, extern bool dma_default_coherent; static inline bool dev_is_dma_coherent(struct device *dev) { - return dev->dma_coherent; + return dev_dma_coherent(dev); } #else #define dma_default_coherent true @@ -240,8 +240,8 @@ static inline void dma_reset_need_sync(struct device *dev) { #ifdef CONFIG_DMA_NEED_SYNC /* Reset it only once so that the function can be called on hotpath */ - if (unlikely(dev->dma_skip_sync)) - dev->dma_skip_sync = false; + if (unlikely(dev_dma_skip_sync(dev))) + dev_clear_dma_skip_sync(dev); #endif } diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index db8ab24a54f4..cc0823a99cfd 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -429,7 +429,7 @@ bool __dma_need_sync(struct device *dev, dma_addr_t dma_addr); static inline bool dma_dev_need_sync(const struct device *dev) { /* Always call DMA sync operations when debugging is enabled */ - return !dev->dma_skip_sync || IS_ENABLED(CONFIG_DMA_API_DEBUG); + return !dev_dma_skip_sync(dev) || IS_ENABLED(CONFIG_DMA_API_DEBUG); } static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr, diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index 31df7608737e..4e86e6990d28 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -210,8 +210,10 @@ static inline void fwnode_init(struct fwnode_handle *fwnode, { fwnode->secondary = NULL; fwnode->ops = ops; + fwnode->dev = NULL; INIT_LIST_HEAD(&fwnode->consumers); INIT_LIST_HEAD(&fwnode->suppliers); + fwnode->flags = 0; } static inline void fwnode_set_flag(struct fwnode_handle *fwnode, @@ -251,6 +253,7 @@ int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup, u8 flags); void fwnode_links_purge(struct fwnode_handle *fwnode); void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode); +void fw_devlink_refresh_fwnode(struct fwnode_handle *fwnode); bool fw_devlink_is_strict(void); #endif diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 734b7ef98f4d..9de2c8d6037a 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -1272,11 +1272,6 @@ struct hv_device { u16 device_id; struct device device; - /* - * Driver name to force a match. Do not set directly, because core - * frees it. Use driver_set_override() to set or clear it. - */ - const char *driver_override; struct vmbus_channel *channel; struct kset *channels_kset; diff --git a/include/linux/iommu-dma.h b/include/linux/iommu-dma.h index a92b3ff9b934..060f6e23ab3c 100644 --- a/include/linux/iommu-dma.h +++ b/include/linux/iommu-dma.h @@ -7,12 +7,13 @@ #ifndef _LINUX_IOMMU_DMA_H #define _LINUX_IOMMU_DMA_H +#include <linux/device.h> #include <linux/dma-direction.h> #ifdef CONFIG_IOMMU_DMA static inline bool use_dma_iommu(struct device *dev) { - return dev->dma_iommu; + return dev_dma_iommu(dev); } #else static inline bool use_dma_iommu(struct device *dev) diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 975400a472e3..26e6a43358e2 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -293,18 +293,19 @@ struct platform_driver { * use a macro to avoid include chaining to get THIS_MODULE */ #define platform_driver_register(drv) \ - __platform_driver_register(drv, THIS_MODULE) + __platform_driver_register(drv, THIS_MODULE, KBUILD_MODNAME) extern int __platform_driver_register(struct platform_driver *, - struct module *); + struct module *, const char *mod_name); extern void platform_driver_unregister(struct platform_driver *); /* non-hotpluggable platform devices may use this so that probe() and * its support may live in __init sections, conserving runtime memory. */ #define platform_driver_probe(drv, probe) \ - __platform_driver_probe(drv, probe, THIS_MODULE) + __platform_driver_probe(drv, probe, THIS_MODULE, KBUILD_MODNAME) extern int __platform_driver_probe(struct platform_driver *driver, - int (*probe)(struct platform_device *), struct module *module); + int (*probe)(struct platform_device *), struct module *module, + const char *mod_name); static inline void *platform_get_drvdata(const struct platform_device *pdev) { @@ -368,19 +369,19 @@ static int __init __platform_driver##_init(void) \ device_initcall(__platform_driver##_init); \ #define platform_create_bundle(driver, probe, res, n_res, data, size) \ - __platform_create_bundle(driver, probe, res, n_res, data, size, THIS_MODULE) + __platform_create_bundle(driver, probe, res, n_res, data, size, THIS_MODULE, KBUILD_MODNAME) extern struct platform_device *__platform_create_bundle( struct platform_driver *driver, int (*probe)(struct platform_device *), struct resource *res, unsigned int n_res, - const void *data, size_t size, struct module *module); + const void *data, size_t size, struct module *module, const char *mod_name); int __platform_register_drivers(struct platform_driver * const *drivers, - unsigned int count, struct module *owner); + unsigned int count, struct module *owner, const char *mod_name); void platform_unregister_drivers(struct platform_driver * const *drivers, unsigned int count); #define platform_register_drivers(drivers, count) \ - __platform_register_drivers(drivers, count, THIS_MODULE) + __platform_register_drivers(drivers, count, THIS_MODULE, KBUILD_MODNAME) #ifdef CONFIG_SUSPEND extern int platform_pm_suspend(struct device *dev); diff --git a/include/linux/property.h b/include/linux/property.h index e30ef23a9af3..14c304db4664 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -471,12 +471,18 @@ struct property_entry { #define PROPERTY_ENTRY_STRING(_name_, _val_) \ __PROPERTY_ENTRY_ELEMENT(_name_, str, STRING, _val_) +#define __PROPERTY_ENTRY_REF_ARGS(_ref_, ...) \ + _Generic(_ref_, \ + const struct software_node_ref_args *: _ref_, \ + struct software_node_ref_args *: _ref_, \ + default: &SOFTWARE_NODE_REFERENCE(_ref_, ##__VA_ARGS__)) + #define PROPERTY_ENTRY_REF(_name_, _ref_, ...) \ (struct property_entry) { \ .name = _name_, \ .length = sizeof(struct software_node_ref_args), \ .type = DEV_PROP_REF, \ - { .pointer = &SOFTWARE_NODE_REFERENCE(_ref_, ##__VA_ARGS__), }, \ + { .pointer = __PROPERTY_ENTRY_REF_ARGS(_ref_, ##__VA_ARGS__) }, \ } #define PROPERTY_ENTRY_BOOL(_name_) \ diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h index 83266ce14642..2e40eb54155e 100644 --- a/include/linux/rpmsg.h +++ b/include/linux/rpmsg.h @@ -41,9 +41,6 @@ struct rpmsg_channel_info { * rpmsg_device - device that belong to the rpmsg bus * @dev: the device struct * @id: device id (used to match between rpmsg drivers and devices) - * @driver_override: driver name to force a match; do not set directly, - * because core frees it; use driver_set_override() to - * set or clear it. * @src: local address * @dst: destination address * @ept: the rpmsg endpoint of this channel @@ -53,7 +50,6 @@ struct rpmsg_channel_info { struct rpmsg_device { struct device dev; struct rpmsg_device_id id; - const char *driver_override; u32 src; u32 dst; struct rpmsg_endpoint *ept; |
