Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Test managed DeviceTree APIs
|
|
*/
|
|
|
|
#include <linux/of.h>
|
|
#include <linux/of_fdt.h>
|
|
|
|
#include <kunit/of.h>
|
|
#include <kunit/test.h>
|
|
#include <kunit/resource.h>
|
|
|
|
#include "of_private.h"
|
|
|
|
/**
|
|
* of_root_kunit_skip() - Skip test if the root node isn't populated
|
|
* @test: test to skip if the root node isn't populated
|
|
*/
|
|
void of_root_kunit_skip(struct kunit *test)
|
|
{
|
|
if ((IS_ENABLED(CONFIG_ARM64) || IS_ENABLED(CONFIG_RISCV)) &&
|
|
IS_ENABLED(CONFIG_ACPI) && !of_root)
|
|
kunit_skip(test, "arm64/riscv+acpi doesn't populate a root node");
|
|
}
|
|
EXPORT_SYMBOL_GPL(of_root_kunit_skip);
|
|
|
|
#if defined(CONFIG_OF_OVERLAY) && defined(CONFIG_OF_EARLY_FLATTREE)
|
|
|
|
static void of_overlay_fdt_apply_kunit_exit(void *ovcs_id)
|
|
{
|
|
of_overlay_remove(ovcs_id);
|
|
}
|
|
|
|
/**
|
|
* of_overlay_fdt_apply_kunit() - Test managed of_overlay_fdt_apply()
|
|
* @test: test context
|
|
* @overlay_fdt: device tree overlay to apply
|
|
* @overlay_fdt_size: size in bytes of @overlay_fdt
|
|
* @ovcs_id: identifier of overlay, used to remove the overlay
|
|
*
|
|
* Just like of_overlay_fdt_apply(), except the overlay is managed by the test
|
|
* case and is automatically removed with of_overlay_remove() after the test
|
|
* case concludes.
|
|
*
|
|
* Return: 0 on success, negative errno on failure
|
|
*/
|
|
int of_overlay_fdt_apply_kunit(struct kunit *test, void *overlay_fdt,
|
|
u32 overlay_fdt_size, int *ovcs_id)
|
|
{
|
|
int ret;
|
|
int *copy_id;
|
|
|
|
of_root_kunit_skip(test);
|
|
|
|
copy_id = kunit_kmalloc(test, sizeof(*copy_id), GFP_KERNEL);
|
|
if (!copy_id)
|
|
return -ENOMEM;
|
|
|
|
ret = of_overlay_fdt_apply(overlay_fdt, overlay_fdt_size,
|
|
ovcs_id, NULL);
|
|
if (ret)
|
|
return ret;
|
|
|
|
*copy_id = *ovcs_id;
|
|
|
|
return kunit_add_action_or_reset(test, of_overlay_fdt_apply_kunit_exit,
|
|
copy_id);
|
|
}
|
|
EXPORT_SYMBOL_GPL(of_overlay_fdt_apply_kunit);
|
|
|
|
#endif
|
|
|
|
KUNIT_DEFINE_ACTION_WRAPPER(of_node_put_wrapper, of_node_put, struct device_node *);
|
|
|
|
/**
|
|
* of_node_put_kunit() - Test managed of_node_put()
|
|
* @test: test context
|
|
* @node: node to pass to `of_node_put()`
|
|
*
|
|
* Just like of_node_put(), except the node is managed by the test case and is
|
|
* automatically put with of_node_put() after the test case concludes.
|
|
*/
|
|
void of_node_put_kunit(struct kunit *test, struct device_node *node)
|
|
{
|
|
if (kunit_add_action(test, of_node_put_wrapper, node)) {
|
|
KUNIT_FAIL(test,
|
|
"Can't allocate a kunit resource to put of_node\n");
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(of_node_put_kunit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Test managed DeviceTree APIs");
|