On Thu, Jun 27, 2019 at 5:18 AM Jiong Wang <jiong.wang@xxxxxxxxxxxxx> wrote: > > #define BPF_ZEXT_REG(DST) > ((struct bpf_insn) { > .code = BPF_ALU | BPF_MOV | BPF_X > > So it can't be BPF_ALU64. It is safe to remove this chunk of code. > Thanks! I'll fix this in the next revision. - Luke