IS_PSEUDO 40 samples/bpf/tcbpf1_kern.c bpf_l4_csum_replace(skb, TCP_CSUM_OFF, old_ip, new_ip, IS_PSEUDO | sizeof(new_ip)); IS_PSEUDO 95 samples/bpf/test_lwt_bpf.c int ret, off = 0, flags = IS_PSEUDO;