bpf_cpumask_xor
BTF_ID_FLAGS(func, bpf_cpumask_xor, KF_RCU)
void bpf_cpumask_xor(struct bpf_cpumask *dst, const struct cpumask *src1,
void bpf_cpumask_xor(struct bpf_cpumask *cpumask,
bpf_cpumask_xor(dst2, cast(mask1), cast(mask2));