reproduce:
        git checkout 47aa60e930fe7fc2a945e4406e3ad1dfa73bb47c
        b4 shazam https://lore.kernel.org/r/20250213224655.1680278-18-surenb@google.com
        make W=1 O=/tmp/kselftest headers
        make W=1 O=/tmp/kselftest -C tools/testing/selftests
        make W=1 O=/tmp/kselftest -C tools/testing/selftests/bpf