+ if (hdr->magic != FIO_HDR_MAGIC)
+ return 0;
+ if (hdr->len > io_u->buflen) {
+ log_err("fio: verify header exceeds buffer length (%u > %lu)\n", hdr->len, io_u->buflen);
+ return 0;
+ }
+
+ crc = fio_crc32c(p, offsetof(struct verify_header, crc32));