[src/trunk]: src/sys/arch/dreamcast/dev Replace an empty for() loop (which wo...

[tsutsui <tsutsui%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a294f4de5ad7
branches:  trunk
changeset: 757497:a294f4de5ad7
user:      tsutsui <tsutsui%NetBSD.org@localhost>
date:      Wed Sep 01 15:20:12 2010 +0000

description:
Replace an empty for() loop (which would be optimized out) with DELAY(1).
No visible performance difference.

diffstat:

 sys/arch/dreamcast/dev/gdrom.c |  7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diffs (28 lines):

diff -r b72ac29efa73 -r a294f4de5ad7 sys/arch/dreamcast/dev/gdrom.c
--- a/sys/arch/dreamcast/dev/gdrom.c    Wed Sep 01 15:18:47 2010 +0000
+++ b/sys/arch/dreamcast/dev/gdrom.c    Wed Sep 01 15:20:12 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: gdrom.c,v 1.30 2010/09/01 15:08:22 tsutsui Exp $       */
+/*     $NetBSD: gdrom.c,v 1.31 2010/09/01 15:20:12 tsutsui Exp $       */
 
 /*-
  * Copyright (c) 2001 Marcus Comstedt
@@ -33,7 +33,7 @@
  */
 
 #include <sys/cdefs.h>                 /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: gdrom.c,v 1.30 2010/09/01 15:08:22 tsutsui Exp $");
+__KERNEL_RCSID(0, "$NetBSD: gdrom.c,v 1.31 2010/09/01 15:20:12 tsutsui Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -227,8 +227,7 @@
                return -1;
        
        GDROM_COND = 0xa0;
-       for (i = 0; i < 64; i++)
-               ;
+       DELAY(1);
        while ((GDROM_BUSY & 0x88) != 8)
                ;