Module Name: src
Committed By: jakllsch
Date: Sat Dec 10 19:50:43 UTC 2022
Modified Files:
src/sys/arch/vax/vsa: lcg.c
Log Message:
Don't let compiler optimize out the framebuffer probe in lcg_match() by
using keyword volatile.
To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.11 src/sys/arch/vax/vsa/lcg.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/vax/vsa/lcg.c
diff -u src/sys/arch/vax/vsa/lcg.c:1.10 src/sys/arch/vax/vsa/lcg.c:1.11
--- src/sys/arch/vax/vsa/lcg.c:1.10 Wed Jul 6 12:33:41 2022
+++ src/sys/arch/vax/vsa/lcg.c Sat Dec 10 19:50:43 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: lcg.c,v 1.10 2022/07/06 12:33:41 andvar Exp $ */
+/* $NetBSD: lcg.c,v 1.11 2022/12/10 19:50:43 jakllsch Exp $ */
/*
* LCG accelerated framebuffer driver
* Copyright (c) 2003, 2004 Blaz Antonic
@@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lcg.c,v 1.10 2022/07/06 12:33:41 andvar Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lcg.c,v 1.11 2022/12/10 19:50:43 jakllsch Exp $");
#define LCG_NO_ACCEL
@@ -433,7 +433,7 @@ lcg_match(struct device *parent, struct
{
struct vsbus_softc *sc = device_private(parent);
struct vsbus_attach_args *va = aux;
- char *ch = (char *)va->va_addr;
+ volatile char * const ch = (char *)va->va_addr;
if ((vax_boardtype != VAX_BTYP_46) && (vax_boardtype != VAX_BTYP_48))
return 0;
