Hi Felix, all,
by now I was only aware of syzbot who is sometimes showing up with some
splats
and the Linux Test Project (LTP)
https://github.com/linux-test-project/ltp/tree/master/testcases/network/can
which e.g. provides CAN filter tests which you can also find in the
can-tests repo.
On 20.02.25 14:03, Felix Maurer wrote:
Hi Marc, Oliver, and linux-can community,
we are reaching out to you because we would like to advance the testing
of the kernel CAN subsystem. We, that's Davide, Filippo and I, are
volunteering to provide the patches for this, but would like to get your
feedback and opinions first.
I would definitely like it and support it :-)
We know about the can-tests repository[1] and think this is a good
starting point for our efforts. Currently, there are two main activities
we'd like to do:
- Promote the test cases in can-tests to become part of the kernel
selftests: This would mainly get the tests closer to the upstream kernel
development, both in terms of maintenance and actually running them. CI
systems like LKFT and CKI could easily be continuously running the
tests.
Ok. Just for my understanding: Bringing the test cases into
tools/testing/selftests would be the enabler to run LKFT and CKI, right?
Does it have any impact or improvement for syzbot or LTP too, e.g. that
we can also improve their test quality?
The downside is that existing automation depending on can-tests
(which we don't know about) would need to be modified.
I don't know about any existing automation based in can-tests either.
The reason for the can-test was mostly to document my own PoCs when
adding new features.
I have no objections to stay with this repo as a PoC playground that
might also help developers to get inspirations - and start something new
with the current code base which aims to fuel the kernel selftests.
- Extend the coverage of the tests: This could include testing for,
e.g., vcan, vxcan, and the cangw netlink interface. But we're open to
feedback here if you see any pressing areas.
I see no pressing areas right now. But the recently integrated CAN XL
support might get some attention ;-)
Like I stated in the beginning, this message should get the discussion
started and we are looking forward to your feedback or concerns on these
ideas.
Many thanks Felix.
Best regards,
Oliver
