2020-05-08 14:52:40 +00:00
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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2020-04-23 20:47:21 +00:00
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From: Laura Abbott <labbott@redhat.com>
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Date: Mon, 7 Jan 2019 21:03:10 +0000
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Subject: [PATCH] modules: add rhelversion MODULE_INFO tag
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There were several changes in the 5.0-rc1 kernel that required
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this patch to be rebased with some context diff.
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Patchwork-id: 7379
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O-Subject: [kernel team] [RHEL8.0 BZ 1544999 1/2] modules: add rhelversion MODULE_INFO tag
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Bugzilla: 1544999
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RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
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RH-Acked-by: Oleg Nesterov <oleg@redhat.com>
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RH-Acked-by: Jarod Wilson <jarod@redhat.com>
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Bugzilla: http://bugzilla.redhat.com/1544999
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kernel-alt commit 9816b4b6ca5d4c0504d8806ce99442c90afbc8e6
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Author: Prarit Bhargava <prarit@redhat.com>
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Date: Fri Feb 9 18:09:26 2018 -0500
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[kernel] modules: add rhelversion MODULE_INFO tag
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Message-id: <20180209180926.5955-3-prarit@redhat.com>
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Patchwork-id: 205587
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O-Subject: [RHEL-ALT-7.5 BZ 1542796 2/2] modules: add rhelversion MODULE_INFO tag
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Bugzilla: 1542796
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RH-Acked-by: David Arcari <darcari@redhat.com>
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RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
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RH-Acked-by: Steve Best <sbest@redhat.com>
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Bugzilla: http://bugzilla.redhat.com/1542796
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rhel7 commit 9af8c3992ce5fff253c49abc0dedb3ec77badba4
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Author: Kyle McMartin <kmcmarti@redhat.com>
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Date: Fri Sep 12 17:46:12 2014 -0400
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[kernel] modules: add rhelversion MODULE_INFO tag
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Message-id: <20140912174612.GS29420@redacted.bos.redhat.com>
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Patchwork-id: 94052
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O-Subject: [RHEL7.1 PATCH 2/6 v4] modules: add rhelversion MODULE_INFO tag
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Bugzilla: 1110315
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RH-Acked-by: Prarit Bhargava <prarit@redhat.com>
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RH-Acked-by: Johannes Weiner <jweiner@redhat.com>
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RH-Acked-by: Don Zickus <dzickus@redhat.com>
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From: Kyle McMartin <kmcmarti@redhat.com>
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1110315
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>From kylem's RHEL8 post:
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Let's not lose this ability in RHEL8. Sadly can't be applied to RHEL7
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because it breaks KABI due to the struct module change.
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Inspired by bits of a147e4729d9920ccae2c717ca65c811cc0f93a1d in RHEL6,
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which got lost for RHEL7.0. :/
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Kyle is correct and doing this would break RHEL7's KABI. I'm taking this
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patch in as a base and the next patch will resolve the KABI issues.
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[v2]: dzickus, cleanup add_rhelversion()
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[v4]: resubmitted along with 16k stacks change
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Signed-off-by: Jarod Wilson <jarod@redhat.com>
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Cc: Richard Guy Briggs <rgb@redhat.com>
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Cc: Peter Rajnoha <prajnoha@redhat.com>
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Cc: Laura Abbott <labbott@redhat.com>
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Cc: Josh Poimboeuf <jpoimboe@redhat.com>
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Signed-off-by: Herton R. Krzesinski <herton@redhat.com>
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Upstream Status: RHEL only
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Signed-off-by: Herton R. Krzesinski <herton@redhat.com>
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Acked-by: Don Zickus <dzickus@redhat.com>
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Acked-by: Prarit Bhargava <prarit@redhat.com>
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---
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include/linux/module.h | 1 +
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kernel/module.c | 2 ++
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scripts/mod/modpost.c | 8 ++++++++
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3 files changed, 11 insertions(+)
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diff --git a/include/linux/module.h b/include/linux/module.h
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2020-08-17 16:18:16 +00:00
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index e30ed5fa33a7..b960ea38d185 100644
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2020-04-23 20:47:21 +00:00
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--- a/include/linux/module.h
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+++ b/include/linux/module.h
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@@ -371,6 +371,7 @@ struct module {
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struct module_attribute *modinfo_attrs;
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const char *version;
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const char *srcversion;
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+ const char *rhelversion;
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struct kobject *holders_dir;
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2020-06-30 14:24:22 +00:00
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2020-04-23 20:47:21 +00:00
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/* Exported symbols */
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diff --git a/kernel/module.c b/kernel/module.c
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2020-08-17 16:18:16 +00:00
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index 1c5cff34d9f2..670ceadd44d2 100644
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2020-04-23 20:47:21 +00:00
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--- a/kernel/module.c
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+++ b/kernel/module.c
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2020-08-17 16:18:16 +00:00
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@@ -805,6 +805,7 @@ static struct module_attribute modinfo_##field = { \
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2020-06-30 14:24:22 +00:00
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2020-04-23 20:47:21 +00:00
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MODINFO_ATTR(version);
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MODINFO_ATTR(srcversion);
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+MODINFO_ATTR(rhelversion);
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2020-06-30 14:24:22 +00:00
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2020-04-23 20:47:21 +00:00
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static char last_unloaded_module[MODULE_NAME_LEN+1];
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2020-06-30 14:24:22 +00:00
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2020-08-17 16:18:16 +00:00
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@@ -1267,6 +1268,7 @@ static struct module_attribute *modinfo_attrs[] = {
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2020-04-23 20:47:21 +00:00
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&module_uevent,
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&modinfo_version,
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&modinfo_srcversion,
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+ &modinfo_rhelversion,
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&modinfo_initstate,
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&modinfo_coresize,
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&modinfo_initsize,
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diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
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2020-08-03 13:39:23 +00:00
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index 69341b36f271..dbc63328187c 100644
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2020-04-23 20:47:21 +00:00
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--- a/scripts/mod/modpost.c
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+++ b/scripts/mod/modpost.c
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@@ -21,6 +21,7 @@
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#include <errno.h>
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#include "modpost.h"
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#include "../../include/linux/license.h"
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+#include "../../include/generated/uapi/linux/version.h"
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2020-06-30 14:24:22 +00:00
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2020-04-23 20:47:21 +00:00
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/* Are we using CONFIG_MODVERSIONS? */
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static int modversions = 0;
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2020-08-03 13:39:23 +00:00
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@@ -2393,6 +2394,12 @@ static void write_buf(struct buffer *b, const char *fname)
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2020-04-23 20:47:21 +00:00
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}
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}
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2020-06-30 14:24:22 +00:00
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2020-04-23 20:47:21 +00:00
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+static void add_rhelversion(struct buffer *b, struct module *mod)
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+{
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+ buf_printf(b, "MODULE_INFO(rhelversion, \"%d.%d\");\n", RHEL_MAJOR,
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+ RHEL_MINOR);
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+}
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+
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static void write_if_changed(struct buffer *b, const char *fname)
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{
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char *tmp;
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2020-08-03 13:39:23 +00:00
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@@ -2645,6 +2652,7 @@ int main(int argc, char **argv)
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2020-04-23 20:47:21 +00:00
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add_depends(&buf, mod);
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add_moddevtable(&buf, mod);
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add_srcversion(&buf, mod);
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+ add_rhelversion(&buf, mod);
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2020-06-30 14:24:22 +00:00
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2020-04-23 20:47:21 +00:00
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sprintf(fname, "%s.mod.c", mod->name);
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write_if_changed(&buf, fname);
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--
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2020-09-09 17:27:11 +00:00
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2.28.0
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2020-04-23 20:47:21 +00:00
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