On Wed, May 04, 2022 at 11:25:14AM -0500, Daniel Latypov wrote:
On Wed, May 4, 2022 at 9:51 AM Luis Chamberlain mcgrof@kernel.org wrote:
selftests has modules, although I am not sure if there are selftests which do not load modules. Shuah?
I'm not Shuah, but there are indeed selftests that don't load modules.
I went looking for an example and found tools/testing/selftests/bpf/test_doc_build.sh, which runs entirely in userspace (basically just `make docs`).
OK so, we can just skip tainting considerations for selftests which don't use modules for now. There may be selftests which do wonky things in userspace but indeed I agree the userspace taint would be better for those but I don't think it may be worth bother worrying about those at this point in time.
But my point in that sharing a taint between kunit / selftests modules does make sense and is easily possible. The unfortunate aspect is just that selftests don't have a centralized runner, because I can just run tools/testing/selftests/sysctl/sysctl.sh for example and that's it. So I think we have no other option but to just add the module info manually for selftests at this time.
Luis