On Fri, Apr 2, 2021 at 10:53 AM Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> wrote: > > On 4/2/21 2:55 AM, Brendan Higgins wrote: > > On Thu, Mar 11, 2021 at 7:23 AM Daniel Latypov <dlatypov@xxxxxxxxxx> wrote: > >> > >> From: Uriel Guajardo <urielguajardo@xxxxxxxxxx> > >> > >> Add a kunit_fail_current_test() function to fail the currently running > >> test, if any, with an error message. > >> > >> This is largely intended for dynamic analysis tools like UBSAN and for > >> fakes. > >> E.g. say I had a fake ops struct for testing and I wanted my `free` > >> function to complain if it was called with an invalid argument, or > >> caught a double-free. Most return void and have no normal means of > >> signalling failure (e.g. super_operations, iommu_ops, etc.). > >> > >> Key points: > >> * Always update current->kunit_test so anyone can use it. > >> * commit 83c4e7a0363b ("KUnit: KASAN Integration") only updated it for > >> CONFIG_KASAN=y > >> > >> * Create a new header <kunit/test-bug.h> so non-test code doesn't have > >> to include all of <kunit/test.h> (e.g. lib/ubsan.c) > >> > >> * Forward the file and line number to make it easier to track down > >> failures > >> > >> * Declare the helper function for nice __printf() warnings about mismatched > >> format strings even when KUnit is not enabled. > >> > >> Example output from kunit_fail_current_test("message"): > >> [15:19:34] [FAILED] example_simple_test > >> [15:19:34] # example_simple_test: initializing > >> [15:19:34] # example_simple_test: lib/kunit/kunit-example-test.c:24: message > >> [15:19:34] not ok 1 - example_simple_test > >> > >> Co-developed-by: Daniel Latypov <dlatypov@xxxxxxxxxx> > >> Signed-off-by: Daniel Latypov <dlatypov@xxxxxxxxxx> > >> Signed-off-by: Uriel Guajardo <urielguajardo@xxxxxxxxxx> > >> Reviewed-by: Alan Maguire <alan.maguire@xxxxxxxxxx> > > > > Reviewed-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx> > > > > Please run checkpatch on your patches in the future. I am seeing > a few checkpatch readability type improvements that can be made. > > Please make changes and send v2 with Brendan's Reviewed-by. Thanks for the catch. checkpatch.pl --strict should now be happy (aside from complaining about line wrapping) v5 here: https://lore.kernel.org/linux-kselftest/20210402212131.835276-1-dlatypov@xxxxxxxxxx Note: Brendan didn't give an explicit Reviewed-by on the second patch, not sure if that was intentional. > > thanks, > -- Shuah