Align the unexpected tag and the tag mask to make clearer what's going
on.  NFCI.
@@ -174,7 +174,7 @@ static unsigned long const na_ofi_prov_flags[] = {NA_OFI_PROV_TYPES};
/* Unexpected size */
#define NA_OFI_UNEXPECTED_SIZE (4096)
#define NA_OFI_UNEXPECTED_TAG (0x100000000ULL)
-#define NA_OFI_TAG_MASK (0xFFFFFFFFULL)
+#define NA_OFI_TAG_MASK (0x0FFFFFFFFULL)
/* Number of CQ event provided for fi_cq_read() */
#define NA_OFI_CQ_EVENT_NUM (16)
