[src/trunk]: src/sys/kern Remove support for the !DVF_PRIV_ALLOC case; device...

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

details:   https://anonhg.NetBSD.org/src/rev/1e98716c469c
branches:  trunk
changeset: 1010451:1e98716c469c
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Mon May 25 21:05:01 2020 +0000

description:
Remove support for the !DVF_PRIV_ALLOC case; device_t and driver private
storage separation are now mandatory.

diffstat:

 sys/kern/subr_autoconf.c |  27 +++++++--------------------
 1 files changed, 7 insertions(+), 20 deletions(-)

diffs (63 lines):

diff -r 3fe037f104fb -r 1e98716c469c sys/kern/subr_autoconf.c
--- a/sys/kern/subr_autoconf.c  Mon May 25 20:56:11 2020 +0000
+++ b/sys/kern/subr_autoconf.c  Mon May 25 21:05:01 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: subr_autoconf.c,v 1.270 2020/04/30 03:28:18 riastradh Exp $ */
+/* $NetBSD: subr_autoconf.c,v 1.271 2020/05/25 21:05:01 thorpej Exp $ */
 
 /*
  * Copyright (c) 1996, 2000 Christopher G. Demetriou
@@ -77,7 +77,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_autoconf.c,v 1.270 2020/04/30 03:28:18 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_autoconf.c,v 1.271 2020/05/25 21:05:01 thorpej Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_ddb.h"
@@ -1265,12 +1265,11 @@
 static void
 config_devfree(device_t dev)
 {
-       int priv = (dev->dv_flags & DVF_PRIV_ALLOC);
+       KASSERT(dev->dv_flags & DVF_PRIV_ALLOC);
 
        if (dev->dv_cfattach->ca_devsize > 0)
                kmem_free(dev->dv_private, dev->dv_cfattach->ca_devsize);
-       if (priv)
-               kmem_free(dev, sizeof(*dev));
+       kmem_free(dev, sizeof(*dev));
 }
 
 /*
@@ -1401,26 +1400,14 @@
                return NULL;
 
        /* get memory for all device vars */
-       KASSERTMSG((ca->ca_flags & DVF_PRIV_ALLOC)
-           || ca->ca_devsize >= sizeof(struct device),
-           "%s: %s (%zu < %zu)", __func__, cf->cf_atname, ca->ca_devsize,
-           sizeof(struct device));
+       KASSERT(ca->ca_flags & DVF_PRIV_ALLOC);
        if (ca->ca_devsize > 0) {
                dev_private = kmem_zalloc(ca->ca_devsize, KM_SLEEP);
        } else {
-               KASSERT(ca->ca_flags & DVF_PRIV_ALLOC);
                dev_private = NULL;
        }
-
-       if ((ca->ca_flags & DVF_PRIV_ALLOC) != 0) {
-               dev = kmem_zalloc(sizeof(*dev), KM_SLEEP);
-       } else {
-               dev = dev_private;
-#ifdef DIAGNOSTIC
-               printf("%s has not been converted to device_t\n", cd->cd_name);
-#endif
-               KASSERT(dev != NULL);
-       }
+       dev = kmem_zalloc(sizeof(*dev), KM_SLEEP);
+
        dev->dv_class = cd->cd_class;
        dev->dv_cfdata = cf;
        dev->dv_cfdriver = cd;