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332857fdac
Some configurations want to enable CONFIG_KUNIT without enabling
CONFIG_OF_OVERLAY. The kunit overlay code already skips if
CONFIG_OF_OVERLAY isn't enabled, so this select here isn't really doing
anything besides making it easier to run the tests without them
skipping. Remove the select and move the config setting to the
drivers/of/.kunitconfig file so that the overlay tests can be run with
or without CONFIG_OF_OVERLAY set to test either behavior.
Fixes: 5c9dd72d83 ("of: Add a KUnit test for overlays and test managed APIs")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20241016212016.887552-1-sboyd@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* KUnit tests for device tree overlays
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*/
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#include <linux/device/bus.h>
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#include <linux/kconfig.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <linux/platform_device.h>
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#include <kunit/of.h>
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#include <kunit/test.h>
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#include "of_private.h"
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static const char * const kunit_node_name = "kunit-test";
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static const char * const kunit_compatible = "test,empty";
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/* Test that of_overlay_apply_kunit() adds a node to the live tree */
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static void of_overlay_apply_kunit_apply(struct kunit *test)
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{
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struct device_node *np;
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KUNIT_ASSERT_EQ(test, 0,
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of_overlay_apply_kunit(test, kunit_overlay_test));
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np = of_find_node_by_name(NULL, kunit_node_name);
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KUNIT_EXPECT_NOT_ERR_OR_NULL(test, np);
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of_node_put(np);
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}
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/*
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* Test that of_overlay_apply_kunit() creates platform devices with the
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* expected device_node
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*/
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static void of_overlay_apply_kunit_platform_device(struct kunit *test)
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{
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struct platform_device *pdev;
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struct device_node *np;
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KUNIT_ASSERT_EQ(test, 0,
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of_overlay_apply_kunit(test, kunit_overlay_test));
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np = of_find_node_by_name(NULL, kunit_node_name);
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of_node_put_kunit(test, np);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, np);
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pdev = of_find_device_by_node(np);
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KUNIT_EXPECT_NOT_ERR_OR_NULL(test, pdev);
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if (pdev)
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put_device(&pdev->dev);
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}
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static int of_overlay_bus_match_compatible(struct device *dev, const void *data)
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{
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return of_device_is_compatible(dev->of_node, data);
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}
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/* Test that of_overlay_apply_kunit() cleans up after the test is finished */
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static void of_overlay_apply_kunit_cleanup(struct kunit *test)
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{
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struct kunit fake;
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struct platform_device *pdev;
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struct device *dev;
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struct device_node *np;
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of_root_kunit_skip(test);
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if (!IS_ENABLED(CONFIG_OF_OVERLAY))
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kunit_skip(test, "requires CONFIG_OF_OVERLAY to apply overlay");
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if (!IS_ENABLED(CONFIG_OF_EARLY_FLATTREE))
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kunit_skip(test, "requires CONFIG_OF_EARLY_FLATTREE for root node");
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kunit_init_test(&fake, "fake test", NULL);
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KUNIT_ASSERT_EQ(test, fake.status, KUNIT_SUCCESS);
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KUNIT_ASSERT_EQ(test, 0,
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of_overlay_apply_kunit(&fake, kunit_overlay_test));
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np = of_find_node_by_name(NULL, kunit_node_name);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, np);
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of_node_put_kunit(&fake, np);
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pdev = of_find_device_by_node(np);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, pdev);
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put_device(&pdev->dev); /* Not derefing 'pdev' after this */
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/* Remove overlay */
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kunit_cleanup(&fake);
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/* The node and device should be removed */
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np = of_find_node_by_name(NULL, kunit_node_name);
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KUNIT_EXPECT_PTR_EQ(test, NULL, np);
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of_node_put(np);
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dev = bus_find_device(&platform_bus_type, NULL, kunit_compatible,
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of_overlay_bus_match_compatible);
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KUNIT_EXPECT_PTR_EQ(test, NULL, dev);
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put_device(dev);
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}
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static struct kunit_case of_overlay_apply_kunit_test_cases[] = {
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KUNIT_CASE(of_overlay_apply_kunit_apply),
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KUNIT_CASE(of_overlay_apply_kunit_platform_device),
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KUNIT_CASE(of_overlay_apply_kunit_cleanup),
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{}
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};
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/*
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* Test suite for test managed device tree overlays.
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*/
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static struct kunit_suite of_overlay_apply_kunit_suite = {
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.name = "of_overlay_apply_kunit",
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.test_cases = of_overlay_apply_kunit_test_cases,
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};
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kunit_test_suites(
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&of_overlay_apply_kunit_suite,
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);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("KUnit tests for device tree overlays");
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