mgp_checksum     1765 src/dps8/dps8_mgp.c   hdr.checksum = mgp_checksum(&hdr, pkt, pklen);
mgp_checksum     1789 src/dps8/dps8_mgp.c   hdr.checksum = mgp_checksum(&hdr, NULL, 0);
mgp_checksum     1813 src/dps8/dps8_mgp.c   hdr.checksum       = mgp_checksum(&hdr, NULL, 0);