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getty: Remove 2 second sleep before opening tty 

This (apparently very old!) workaround to ensure that DTR stays down long
enough to be detected is now handled by serial drivers themselves. For
console devices (framebuffer, serial console, etc) this was an unnecessary
2 second penalty that we have all been paying since the beginning of time.
This commit is contained in:
jmcneill 2021-10-12 23:40:38 +00:00
parent 8b3967e586
commit caba86e5d2
1 changed files with 2 additions and 7 deletions
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9
libexec/getty/main.c
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@ -1,4 +1,4 @@
/* $NetBSD: main.c,v 1.67 2020/02/26 15:44:57 riastradh Exp $ */
/* $NetBSD: main.c,v 1.68 2021/10/12 23:40:38 jmcneill Exp $ */
/*-
* Copyright (c) 1980, 1993
@ -40,7 +40,7 @@ __COPYRIGHT("@(#) Copyright (c) 1980, 1993\
#if 0
static char sccsid[] = "from: @(#)main.c 8.1 (Berkeley) 6/20/93";
#else
__RCSID("$NetBSD: main.c,v 1.67 2020/02/26 15:44:57 riastradh Exp $");
__RCSID("$NetBSD: main.c,v 1.68 2021/10/12 23:40:38 jmcneill Exp $");
#endif
#endif /* not lint */
@ -229,11 +229,6 @@ main(int argc, char *argv[], char *envp[])
if (ttyaction(ttyn, "getty", "root"))
syslog(LOG_WARNING, "%s: ttyaction failed",
ttyn);
/*
* Delay the open so DTR stays down long enough
* to be detected.
*/
(void)sleep(2);
while ((i = open(ttyn, O_RDWR)) == -1) {
if ((repcnt % 10 == 0) &&
(errno != ENXIO || !failopenlogged)) {