delete useless XXX

diff --git a/sys/arch/riscv64/riscv64/mem.c b/sys/arch/riscv64/riscv64/mem.c
index 295ead0..dffabea 100644 (file)
--- a/sys/arch/riscv64/riscv64/mem.c
+++ b/sys/arch/riscv64/riscv64/mem.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: mem.c,v 1.4 2021/05/14 06:48:52 jsg Exp $     */
+/*     $OpenBSD: mem.c,v 1.5 2021/05/19 20:35:02 deraadt Exp $ */
 
 /*
  * Copyright (c) 1982, 1986, 1990, 1993
@@ -88,7 +88,6 @@
 caddr_t zeropage;
 
 /* open counter for aperture */
-// XXX What is aperture?
 #ifdef APERTURE
 static int ap_open_count = 0;
 extern int allowaperture;