scx_bpf_cpu_node
BTF_ID_FLAGS(func, scx_bpf_cpu_node)
int scx_bpf_cpu_node(s32 cpu) __ksym __weak;
(bpf_ksym_exists(scx_bpf_cpu_node) ? \
scx_bpf_cpu_node(cpu) : 0)