[src/trunk]: src/sys/kern module(9): Call callbacks in topological order on l...

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

details:   https://anonhg.NetBSD.org/src/rev/9b73ca154a70
branches:  trunk
changeset: 368841:9b73ca154a70
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Aug 07 20:44:39 2022 +0000

description:
module(9): Call callbacks in topological order on load.

They are called in reverse topological order on unload.

dtrace_sdt will rely on this soon to ensure provider definitions are
processed before their uses.

ok chs@

diffstat:

 sys/kern/kern_module.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r f413e9b6ad19 -r 9b73ca154a70 sys/kern/kern_module.c
--- a/sys/kern/kern_module.c    Sun Aug 07 20:14:00 2022 +0000
+++ b/sys/kern/kern_module.c    Sun Aug 07 20:44:39 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_module.c,v 1.154 2022/05/07 04:30:41 rin Exp $    */
+/*     $NetBSD: kern_module.c,v 1.155 2022/08/07 20:44:39 riastradh Exp $      */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_module.c,v 1.154 2022/05/07 04:30:41 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_module.c,v 1.155 2022/08/07 20:44:39 riastradh Exp $");
 
 #define _MODULE_INTERNAL
 
@@ -1889,7 +1889,7 @@
 
        kernconfig_lock();
        TAILQ_INSERT_TAIL(&modcblist, modcb, modcb_list);
-       TAILQ_FOREACH(mod, &module_list, mod_chain)
+       TAILQ_FOREACH_REVERSE(mod, &module_list, modlist, mod_chain)
                load(mod);
        kernconfig_unlock();