reproduce:
        git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
        git fetch tip locking/core
        git checkout tip/locking/core
        b4 shazam https://lore.kernel.org/r/20240903134033.816500-1-andrealmeid@igalia.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