korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-11 12:28:41 +08:00
Code Issues Packages Projects Releases Wiki Activity

ACPI: bus: Introduce acpi_dev_for_each_child_reverse()

Browse Source 
Make it possible to walk the children of an ACPI device in the revese
order by defining acpi_dev_for_each_child_reverse() in analogy with
acpi_dev_for_each_child().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Rafael J. Wysocki 2022-06-13 20:26:47 +02:00
parent 0ea3ef240c
commit ff32e59947
2 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/acpi/bus.c
View File

@ -1115,6 +1115,18 @@ int acpi_dev_for_each_child(struct acpi_device *adev,
return device_for_each_child(&adev->dev, &adwc, acpi_dev_for_one_check);
}
int acpi_dev_for_each_child_reverse(struct acpi_device *adev,
int (*fn)(struct acpi_device *, void *),
void *data)
{
struct acpi_dev_walk_context adwc = {
.fn = fn,
.data = data,
};
return device_for_each_child_reverse(&adev->dev, &adwc, acpi_dev_for_one_check);
}
/* --------------------------------------------------------------------------
Initialization/Cleanup
-------------------------------------------------------------------------- */

3
include/acpi/acpi_bus.h
View File

@ -483,6 +483,9 @@ extern struct bus_type acpi_bus_type;
int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data);
int acpi_dev_for_each_child(struct acpi_device *adev,
int (*fn)(struct acpi_device *, void *), void *data);
int acpi_dev_for_each_child_reverse(struct acpi_device *adev,
int (*fn)(struct acpi_device *, void *),
void *data);
/*
* Events