[src/trunk]: src/sys/dev Check validbits against precision in vchan_autoconfi...

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

details:   https://anonhg.NetBSD.org/src/rev/56a54b59977b
branches:  trunk
changeset: 824976:56a54b59977b
user:      nat <nat%NetBSD.org@localhost>
date:      Sun Jun 25 02:47:28 2017 +0000

description:
Check validbits against precision in vchan_autoconfig.  At present
validbits != precision is not supported.

This change will most likely break autoconfig on vs(4), for these machines
the parameters can be set to the paramaters reported at attach time via
sysctl.

diffstat:

 sys/dev/audio.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (27 lines):

diff -r dc8d0f69cd6f -r 56a54b59977b sys/dev/audio.c
--- a/sys/dev/audio.c   Sun Jun 25 02:16:41 2017 +0000
+++ b/sys/dev/audio.c   Sun Jun 25 02:47:28 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.363 2017/06/25 02:11:40 nat Exp $  */
+/*     $NetBSD: audio.c,v 1.364 2017/06/25 02:47:28 nat Exp $  */
 
 /*-
  * Copyright (c) 2016 Nathanial Sloss <nathanialsloss%yahoo.com.au@localhost>
@@ -148,7 +148,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.363 2017/06/25 02:11:40 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.364 2017/06/25 02:47:28 nat Exp $");
 
 #ifdef _KERNEL_OPT
 #include "audio.h"
@@ -6089,6 +6089,8 @@
                                if (vc->sc_npfilters > 0 &&
                                    (vc->sc_mpr.s.param.precision !=
                                                        sc->sc_precision ||
+                                   vc->sc_mpr.s.param.validbits !=
+                                                       sc->sc_precision ||
                                    vc->sc_mpr.s.param.
                                        sample_rate != sc->sc_frequency ||
                                    vc->sc_mpr.s.param.