reproduce: git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git git fetch tip x86/core git checkout tip/x86/core b4 shazam https://lore.kernel.org/r/20240425180542.1042933-5-aruna.ramakrishna@oracle.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