From: Ricardo B. Marliere <ricardo@marliere.net>
Date: Sun, 4 Feb 2024 13:47:05 +0000 (-0300)
Subject: workqueue: make wq_subsys const
X-Git-Tag: v6.9-rc1~209^2~8
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d412ace11144aa2bf692c7cf9778351efc15c827;p=thirdparty%2Fkernel%2Flinux.git

workqueue: make wq_subsys const

Now that the driver core can properly handle constant struct bus_type,
move the wq_subsys variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-and-reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 55c9816506b06..695f6f5ad0382 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -6692,7 +6692,7 @@ static struct device_attribute wq_sysfs_unbound_attrs[] = {
 	__ATTR_NULL,
 };
 
-static struct bus_type wq_subsys = {
+static const struct bus_type wq_subsys = {
 	.name				= "workqueue",
 	.dev_groups			= wq_sysfs_groups,
 };