[src/trunk]: src/sys/dev/wscons be more careful when optimizing stretches of ...

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

details:   https://anonhg.NetBSD.org/src/rev/eb112b0fcce9
branches:  trunk
changeset: 948845:eb112b0fcce9
user:      macallan <macallan%NetBSD.org@localhost>
date:      Sat Jan 02 03:00:56 2021 +0000

description:
be more careful when optimizing stretches of blanks into erasecols()
now testpat's output is redrawn properly

diffstat:

 sys/dev/wscons/wsdisplay_vcons.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 3632fa0b0605 -r eb112b0fcce9 sys/dev/wscons/wsdisplay_vcons.c
--- a/sys/dev/wscons/wsdisplay_vcons.c  Sat Jan 02 02:13:42 2021 +0000
+++ b/sys/dev/wscons/wsdisplay_vcons.c  Sat Jan 02 03:00:56 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: wsdisplay_vcons.c,v 1.44 2020/12/28 00:14:18 macallan Exp $ */
+/*     $NetBSD: wsdisplay_vcons.c,v 1.45 2021/01/02 03:00:56 macallan Exp $ */
 
 /*-
  * Copyright (c) 2005, 2006 Michael Lorenz
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: wsdisplay_vcons.c,v 1.44 2020/12/28 00:14:18 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: wsdisplay_vcons.c,v 1.45 2021/01/02 03:00:56 macallan Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -596,7 +596,7 @@
                                         * and flags we don't need to do
                                         * anything here
                                         */
-                                       if (acmp == cmp)
+                                       if (acmp == cmp && start == -1)
                                                goto next;
                                        /*
                                         * see if we can optimize things a