Re: [PATCH bpf-next v2 1/3] selftests/bpf: fix for veristat file/prog filters processing

> selftests/bpf: fix for veristat file/prog filters processing
>
> At the moment veristat filtering behaves unexpectedly for the
> following filter expression:
>
>   -f !file/prog
>
> The expression rejects all programs with name 'prog', and all programs
> in a file with name 'file'. This commit fixes the expression to
> exclude only a program 'prog' from a file 'file'. Additionally,
> the commit makes empty filters like '-f ""' or '-f "/"' and error.

This isn't a bug, but should "and error" here read "an error"? It's the
sentence that documents the new -EINVAL for empty filters.


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AI reviewed your patch. Please fix the bug or email reply why it's not a bug.
See: https://github.com/kernel-patches/vmtest/blob/master/ci/claude/README.md

CI run summary: https://github.com/kernel-patches/bpf/actions/runs/31569226955