Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * KUnit tests for OF APIs
4 */
5#include <linux/module.h>
6#include <linux/of.h>
7
8#include <kunit/test.h>
9
10#include "of_private.h"
11
12/*
13 * Test that the root node "/" can be found by path.
14 */
15static void of_dtb_root_node_found_by_path(struct kunit *test)
16{
17 struct device_node *np;
18
19 np = of_find_node_by_path("/");
20 KUNIT_EXPECT_NOT_ERR_OR_NULL(test, np);
21 of_node_put(np);
22}
23
24/*
25 * Test that the 'of_root' global variable is always populated when DT code is
26 * enabled. Remove this test once of_root is removed from global access.
27 */
28static void of_dtb_root_node_populates_of_root(struct kunit *test)
29{
30 KUNIT_EXPECT_NOT_ERR_OR_NULL(test, of_root);
31}
32
33static struct kunit_case of_dtb_test_cases[] = {
34 KUNIT_CASE(of_dtb_root_node_found_by_path),
35 KUNIT_CASE(of_dtb_root_node_populates_of_root),
36 {}
37};
38
39static int of_dtb_test_init(struct kunit *test)
40{
41 of_root_kunit_skip(test);
42 if (!IS_ENABLED(CONFIG_OF_EARLY_FLATTREE))
43 kunit_skip(test, "requires CONFIG_OF_EARLY_FLATTREE");
44
45 return 0;
46}
47
48/*
49 * Test suite to confirm a DTB is loaded.
50 */
51static struct kunit_suite of_dtb_suite = {
52 .name = "of_dtb",
53 .test_cases = of_dtb_test_cases,
54 .init = of_dtb_test_init,
55};
56
57kunit_test_suites(
58 &of_dtb_suite,
59);
60MODULE_DESCRIPTION("KUnit tests for OF APIs");
61MODULE_LICENSE("GPL");