On Tue, Apr 26, 2022 at 11:19AM -0700, 'Daniel Latypov' via kasan-dev wrote:
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
Reviewed-by: Marco Elver elver@google.com
mm/kfence/.kunitconfig | 6 ++++++ mm/kfence/kfence_test.c | 31 +++++++++++++------------------ 2 files changed, 19 insertions(+), 18 deletions(-) create mode 100644 mm/kfence/.kunitconfig
diff --git a/mm/kfence/.kunitconfig b/mm/kfence/.kunitconfig new file mode 100644 index 000000000000..f3d65e939bfa --- /dev/null +++ b/mm/kfence/.kunitconfig @@ -0,0 +1,6 @@ +CONFIG_KUNIT=y +CONFIG_KFENCE=y +CONFIG_KFENCE_KUNIT_TEST=y
+# Additional dependencies. +CONFIG_FTRACE=y diff --git a/mm/kfence/kfence_test.c b/mm/kfence/kfence_test.c index 1b50f70a4c0f..96206a4ee9ab 100644 --- a/mm/kfence/kfence_test.c +++ b/mm/kfence/kfence_test.c @@ -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);
Much nicer!
Thanks, -- Marco