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kfence: test: use new suite_{init/exit} support, add .kunitconfig 

Currently, the kfence test suite could not run via "normal" means since
KUnit didn't support per-suite setup/teardown. So it manually called
internal kunit functions to run itself.
This has some downsides, like missing TAP headers => can't use kunit.py
to run or even parse the test results (w/o tweaks).

Use the newly added support and convert it over, adding a .kunitconfig
so it's even easier to run from kunit.py.

People can now run the test via
$ ./tools/testing/kunit/kunit.py run --kunitconfig=mm/kfence --arch=x86_64
...
[11:02:32] Testing complete. Passed: 23, Failed: 0, Crashed: 0, Skipped: 2, Errors: 0
[11:02:32] Elapsed time: 43.562s total, 0.003s configuring, 9.268s building, 34.281s running

Cc: kasan-dev@googlegroups.com
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Tested-by: David Gow <davidgow@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Daniel Latypov 2022-04-29 11:12:58 -07:00 committed by Shuah Khan
parent 1cdba21db2
commit 3b91f82658
2 changed files with 19 additions and 18 deletions
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6
mm/kfence/.kunitconfig Normal file
View File

@ -0,0 +1,6 @@
CONFIG_KUNIT=y
CONFIG_KFENCE=y
CONFIG_KFENCE_KUNIT_TEST=y
# Additional dependencies.
CONFIG_FTRACE=y

31
mm/kfence/kfence_test.c
View File

@ -826,14 +826,6 @@ static void test_exit(struct kunit *test)
test_cache_destroy();
}
static struct kunit_suite kfence_test_suite = {
.name = "kfence",
.test_cases = kfence_test_cases,
.init = test_init,
.exit = test_exit,
};
static struct kunit_suite *kfence_test_suites[] = { &kfence_test_suite, NULL };
static void register_tracepoints(struct tracepoint *tp, void *ignore)
{
check_trace_callback_type_console(probe_console);
@ -847,11 +839,7 @@ static void unregister_tracepoints(struct tracepoint *tp, void *ignore)
tracepoint_probe_unregister(tp, probe_console, NULL);
}
/*
* We only want to do tracepoints setup and teardown once, therefore we have to
* customize the init and exit functions and cannot rely on kunit_test_suite().
*/
static int __init kfence_test_init(void)
static int kfence_suite_init(struct kunit_suite *suite)
{
/*
* Because we want to be able to build the test as a module, we need to
@ -859,18 +847,25 @@ static int __init kfence_test_init(void)
* won't work here.
*/
for_each_kernel_tracepoint(register_tracepoints, NULL);
return __kunit_test_suites_init(kfence_test_suites);
return 0;
}
static void kfence_test_exit(void)
static void kfence_suite_exit(struct kunit_suite *suite)
{
__kunit_test_suites_exit(kfence_test_suites);
for_each_kernel_tracepoint(unregister_tracepoints, NULL);
tracepoint_synchronize_unregister();
}
late_initcall_sync(kfence_test_init);
module_exit(kfence_test_exit);
static struct kunit_suite kfence_test_suite = {
.name = "kfence",
.test_cases = kfence_test_cases,
.init = test_init,
.exit = test_exit,
.suite_init = kfence_suite_init,
.suite_exit = kfence_suite_exit,
};
kunit_test_suites(&kfence_test_suite);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Alexander Potapenko <glider@google.com>, Marco Elver <elver@google.com>");