reproduce: git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git git fetch tip perf/core git checkout tip/perf/core b4 shazam https://lore.kernel.org/r/20240408062230.1949882-6-ChaitanyaS.Prakash@arm.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