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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-06-13 20:26:47 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-06-20 20:33:15 +0200 |
| commit | ff32e59947c87b01dc25a8b5763d609c1a8f56eb (patch) | |
| tree | 863d4075428b441b3cae9b2250a5482303f1af97 /drivers/acpi/bus.c | |
| parent | 0ea3ef240c49113cefbaab1f3dbf5b7f46837fc0 (diff) | |
| download | linux-ff32e59947c87b01dc25a8b5763d609c1a8f56eb.tar.gz linux-ff32e59947c87b01dc25a8b5763d609c1a8f56eb.tar.bz2 linux-ff32e59947c87b01dc25a8b5763d609c1a8f56eb.zip | |
ACPI: bus: Introduce acpi_dev_for_each_child_reverse()
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>
Diffstat (limited to 'drivers/acpi/bus.c')
| -rw-r--r-- | drivers/acpi/bus.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 7027ff2edfba..4d7c51a33b01 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -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 -------------------------------------------------------------------------- */ |