From: Ricardo B. Marliere <ricardo@marliere.net>
Date: Tue, 6 Feb 2024 18:05:06 +0000 (-0300)
Subject: workqueue: make wq_subsys const
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5df9197edd731a44682444631d68c2384f381bf1;p=linux.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.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Cc: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20240206-bus_cleanup-workqueue-v1-1-72b10d282d58@marliere.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 76e60faed8923..f1e062acd0916 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -6157,7 +6157,7 @@ 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,
 };