kernel/linux.git/include/linux/device.h, branch linux-6.5.y

Merge tag 'core_guards_for_6.5_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue

2023-07-04T20:50:38+00:00

Pull scope-based resource management infrastructure from Peter Zijlstra: "These are the first few patches in the Scope-based Resource Management series that introduce the infrastructure but not any conversions as of yet. Adding the infrastructure now allows multiple people to start using them. Of note is that Sparse will need some work since it doesn't yet understand this attribute and might have decl-after-stmt issues" * tag 'core_guards_for_6.5_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue: kbuild: Drop -Wdeclaration-after-statement locking: Introduce __cleanup() based infrastructure apparmor: Free up __cleanup() name dmaengine: ioat: Free up __cleanup() name

locking: Introduce __cleanup() based infrastructure

2023-06-26T09:14:18+00:00

Use __attribute__((__cleanup__(func))) to build: - simple auto-release pointers using __free() - 'classes' with constructor and destructor semantics for scope-based resource management. - lock guards based on the above classes. Signed-off-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/20230612093537.614161713%40infradead.org

driver core: device.h: add some missing kerneldocs

2023-05-31T19:25:57+00:00

struct device_attribute, struct dev_ext_attribute, dev_name(), and the DEVICE_ATTR() macros lack kerneldocs, preventing them from appearing in the driver core documentation and from being cross-referenced elsewhere. Add the missing kerneldocs (except for DEVICE_ATTR_IGNORE_LOCKDEP(), which is only meaningful on debug builds with CONFIG_DEBUG_LOCK_ALLOC defined, and is aliased to DEVICE_ATTR() otherwise). Tested-by: Randy Dunlap Acked-by: Randy Dunlap Signed-off-by: James Seo Link: https://lore.kernel.org/r/20230509024702.1977991-1-james@equiv.tech Signed-off-by: Greg Kroah-Hartman

devres: Provide krealloc_array

2023-05-30T20:07:15+00:00

There is no krealloc_array equivalent in devres. Users would have to do their own multiplication overflow check so provide one. Reviewed-by: Jonathan Cameron Signed-off-by: James Clark Link: https://lore.kernel.org/r/20230509094942.396150-2-james.clark@arm.com Signed-off-by: Greg Kroah-Hartman

driver core: device.h: remove extern from function prototypes

2023-03-24T14:35:31+00:00

The kernel coding style does not require 'extern' in function prototypes in .h files, so remove them from include/linux/device.h as they are not needed. Acked-by: Rafael J. Wysocki Link: https://lore.kernel.org/r/20230324122711.2664537-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

driver core: device.h: make struct bus_type a const *

2023-03-23T12:21:58+00:00

Now that all users who accessed the bus_type structure in struct device are properly using it as a const *, mark it as such so that no one can modify it going forward anymore. Cc: "Rafael J. Wysocki" Link: https://lore.kernel.org/r/20230313182918.1312597-35-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

driver core: device: make device_create() take a const struct class

2023-03-17T14:16:50+00:00

The functions device_create() and device_create_with_groups() do not modify the struct class passed into it, so enforce this by changing the function parameters to be struct const class. Cc: "Rafael J. Wysocki" Link: https://lore.kernel.org/r/20230313181843.1207845-12-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

driver core: device: mark struct class in struct device as constant

2023-03-17T14:16:48+00:00

The pointer to a struct class in a struct device should never be used to change anything in that class. So mark it as constant to enforce this requirement. This requires a few minor changes to some internal driver core functions to enforce the const * being used here now. Cc: "Rafael J. Wysocki" Link: https://lore.kernel.org/r/20230313181843.1207845-11-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

driver core: device: make device_destroy() take a const class *

2023-03-17T14:16:43+00:00

device_destroy() does not modify the struct class passed into it, so mark it as const to enforce this rule. Cc: "Rafael J. Wysocki" Link: https://lore.kernel.org/r/20230313181843.1207845-9-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

devres: Pass unique name of the resource to devm_add_action_or_reset()

2023-03-17T14:09:59+00:00

All the same as it's done in the commit e32c80bbd2f9 ("devres: Pass unique name of the resource to devm_add_action()") applies to the devm_add_action_or_reset(), which this change makes real. This helps with debug resource management. Reported-and-tested-by: Mirsad Goran Todorovac Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230313113100.59643-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman