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diff --git a/lib/kunit/kunit-example-test.c b/lib/kunit/kunit-example-test.c
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+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Example KUnit test to show how to use KUnit.
+ *
+ * Copyright (C) 2019, Google LLC.
+ * Author: Brendan Higgins <brendanhiggins@google.com>
+ */
+
+#include <kunit/test.h>
+#include <kunit/static_stub.h>
+
+/*
+ * This is the most fundamental element of KUnit, the test case. A test case
+ * makes a set EXPECTATIONs and ASSERTIONs about the behavior of some code; if
+ * any expectations or assertions are not met, the test fails; otherwise, the
+ * test passes.
+ *
+ * In KUnit, a test case is just a function with the signature
+ * `void (*)(struct kunit *)`. `struct kunit` is a context object that stores
+ * information about the current test.
+ */
+static void example_simple_test(struct kunit *test)
+{
+	/*
+	 * This is an EXPECTATION; it is how KUnit tests things. When you want
+	 * to test a piece of code, you set some expectations about what the
+	 * code should do. KUnit then runs the test and verifies that the code's
+	 * behavior matched what was expected.
+	 */
+	KUNIT_EXPECT_EQ(test, 1 + 1, 2);
+}
+
+/*
+ * This is run once before each test case, see the comment on
+ * example_test_suite for more information.
+ */
+static int example_test_init(struct kunit *test)
+{
+	kunit_info(test, "initializing\n");
+
+	return 0;
+}
+
+/*
+ * This is run once after each test case, see the comment on
+ * example_test_suite for more information.
+ */
+static void example_test_exit(struct kunit *test)
+{
+	kunit_info(test, "cleaning up\n");
+}
+
+
+/*
+ * This is run once before all test cases in the suite.
+ * See the comment on example_test_suite for more information.
+ */
+static int example_test_init_suite(struct kunit_suite *suite)
+{
+	kunit_info(suite, "initializing suite\n");
+
+	return 0;
+}
+
+/*
+ * This is run once after all test cases in the suite.
+ * See the comment on example_test_suite for more information.
+ */
+static void example_test_exit_suite(struct kunit_suite *suite)
+{
+	kunit_info(suite, "exiting suite\n");
+}
+
+
+/*
+ * This test should always be skipped.
+ */
+static void example_skip_test(struct kunit *test)
+{
+	/* This line should run */
+	kunit_info(test, "You should not see a line below.");
+
+	/* Skip (and abort) the test */
+	kunit_skip(test, "this test should be skipped");
+
+	/* This line should not execute */
+	KUNIT_FAIL(test, "You should not see this line.");
+}
+
+/*
+ * This test should always be marked skipped.
+ */
+static void example_mark_skipped_test(struct kunit *test)
+{
+	/* This line should run */
+	kunit_info(test, "You should see a line below.");
+
+	/* Skip (but do not abort) the test */
+	kunit_mark_skipped(test, "this test should be skipped");
+
+	/* This line should run */
+	kunit_info(test, "You should see this line.");
+}
+
+/*
+ * This test shows off all the types of KUNIT_EXPECT macros.
+ */
+static void example_all_expect_macros_test(struct kunit *test)
+{
+	const u32 array1[] = { 0x0F, 0xFF };
+	const u32 array2[] = { 0x1F, 0xFF };
+
+	/* Boolean assertions */
+	KUNIT_EXPECT_TRUE(test, true);
+	KUNIT_EXPECT_FALSE(test, false);
+
+	/* Integer assertions */
+	KUNIT_EXPECT_EQ(test, 1, 1); /* check == */
+	KUNIT_EXPECT_GE(test, 1, 1); /* check >= */
+	KUNIT_EXPECT_LE(test, 1, 1); /* check <= */
+	KUNIT_EXPECT_NE(test, 1, 0); /* check != */
+	KUNIT_EXPECT_GT(test, 1, 0); /* check >  */
+	KUNIT_EXPECT_LT(test, 0, 1); /* check <  */
+
+	/* Pointer assertions */
+	KUNIT_EXPECT_NOT_ERR_OR_NULL(test, test);
+	KUNIT_EXPECT_PTR_EQ(test, NULL, NULL);
+	KUNIT_EXPECT_PTR_NE(test, test, NULL);
+	KUNIT_EXPECT_NULL(test, NULL);
+	KUNIT_EXPECT_NOT_NULL(test, test);
+
+	/* String assertions */
+	KUNIT_EXPECT_STREQ(test, "hi", "hi");
+	KUNIT_EXPECT_STRNEQ(test, "hi", "bye");
+
+	/* Memory block assertions */
+	KUNIT_EXPECT_MEMEQ(test, array1, array1, sizeof(array1));
+	KUNIT_EXPECT_MEMNEQ(test, array1, array2, sizeof(array1));
+
+	/*
+	 * There are also ASSERT variants of all of the above that abort test
+	 * execution if they fail. Useful for memory allocations, etc.
+	 */
+	KUNIT_ASSERT_GT(test, sizeof(char), 0);
+
+	/*
+	 * There are also _MSG variants of all of the above that let you include
+	 * additional text on failure.
+	 */
+	KUNIT_EXPECT_GT_MSG(test, sizeof(int), 0, "Your ints are 0-bit?!");
+	KUNIT_ASSERT_GT_MSG(test, sizeof(int), 0, "Your ints are 0-bit?!");
+}
+
+/* This is a function we'll replace with static stubs. */
+static int add_one(int i)
+{
+	/* This will trigger the stub if active. */
+	KUNIT_STATIC_STUB_REDIRECT(add_one, i);
+
+	return i + 1;
+}
+
+/* This is used as a replacement for the above function. */
+static int subtract_one(int i)
+{
+	/* We don't need to trigger the stub from the replacement. */
+
+	return i - 1;
+}
+
+/*
+ * This test shows the use of static stubs.
+ */
+static void example_static_stub_test(struct kunit *test)
+{
+	/* By default, function is not stubbed. */
+	KUNIT_EXPECT_EQ(test, add_one(1), 2);
+
+	/* Replace add_one() with subtract_one(). */
+	kunit_activate_static_stub(test, add_one, subtract_one);
+
+	/* add_one() is now replaced. */
+	KUNIT_EXPECT_EQ(test, add_one(1), 0);
+
+	/* Return add_one() to normal. */
+	kunit_deactivate_static_stub(test, add_one);
+	KUNIT_EXPECT_EQ(test, add_one(1), 2);
+}
+
+static const struct example_param {
+	int value;
+} example_params_array[] = {
+	{ .value = 2, },
+	{ .value = 1, },
+	{ .value = 0, },
+};
+
+static void example_param_get_desc(const struct example_param *p, char *desc)
+{
+	snprintf(desc, KUNIT_PARAM_DESC_SIZE, "example value %d", p->value);
+}
+
+KUNIT_ARRAY_PARAM(example, example_params_array, example_param_get_desc);
+
+/*
+ * This test shows the use of params.
+ */
+static void example_params_test(struct kunit *test)
+{
+	const struct example_param *param = test->param_value;
+
+	/* By design, param pointer will not be NULL */
+	KUNIT_ASSERT_NOT_NULL(test, param);
+
+	/* Test can be skipped on unsupported param values */
+	if (!param->value)
+		kunit_skip(test, "unsupported param value");
+
+	/* You can use param values for parameterized testing */
+	KUNIT_EXPECT_EQ(test, param->value % param->value, 0);
+}
+
+/*
+ * This test should always pass. Can be used to practice filtering attributes.
+ */
+static void example_slow_test(struct kunit *test)
+{
+	KUNIT_EXPECT_EQ(test, 1 + 1, 2);
+}
+
+/*
+ * Here we make a list of all the test cases we want to add to the test suite
+ * below.
+ */
+static struct kunit_case example_test_cases[] = {
+	/*
+	 * This is a helper to create a test case object from a test case
+	 * function; its exact function is not important to understand how to
+	 * use KUnit, just know that this is how you associate test cases with a
+	 * test suite.
+	 */
+	KUNIT_CASE(example_simple_test),
+	KUNIT_CASE(example_skip_test),
+	KUNIT_CASE(example_mark_skipped_test),
+	KUNIT_CASE(example_all_expect_macros_test),
+	KUNIT_CASE(example_static_stub_test),
+	KUNIT_CASE_PARAM(example_params_test, example_gen_params),
+	KUNIT_CASE_SLOW(example_slow_test),
+	{}
+};
+
+/*
+ * This defines a suite or grouping of tests.
+ *
+ * Test cases are defined as belonging to the suite by adding them to
+ * `kunit_cases`.
+ *
+ * Often it is desirable to run some function which will set up things which
+ * will be used by every test; this is accomplished with an `init` function
+ * which runs before each test case is invoked. Similarly, an `exit` function
+ * may be specified which runs after every test case and can be used to for
+ * cleanup. For clarity, running tests in a test suite would behave as follows:
+ *
+ * suite.suite_init(suite);
+ * suite.init(test);
+ * suite.test_case[0](test);
+ * suite.exit(test);
+ * suite.init(test);
+ * suite.test_case[1](test);
+ * suite.exit(test);
+ * suite.suite_exit(suite);
+ * ...;
+ */
+static struct kunit_suite example_test_suite = {
+	.name = "example",
+	.init = example_test_init,
+	.exit = example_test_exit,
+	.suite_init = example_test_init_suite,
+	.suite_exit = example_test_exit_suite,
+	.test_cases = example_test_cases,
+};
+
+/*
+ * This registers the above test suite telling KUnit that this is a suite of
+ * tests that need to be run.
+ */
+kunit_test_suites(&example_test_suite);
+
+MODULE_LICENSE("GPL v2");