linux-kernel - [PATCH] samples/kobject: make kobj

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Message-Id: <20230208-kobj_type-samples-v1-1-fca804a8e9f3@weissschuh.net>
Date:   Wed, 08 Feb 2023 03:54:51 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] samples/kobject: make kobj_type structure constant

Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.

Take advantage of this to constify the structure definition to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 samples/kobject/kset-example.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/kobject/kset-example.c b/samples/kobject/kset-example.c
index 52f1acabd479..342452282719 100644
--- a/samples/kobject/kset-example.c
+++ b/samples/kobject/kset-example.c
@@ -185,7 +185,7 @@ ATTRIBUTE_GROUPS(foo_default);
  * release function, and the set of default attributes we want created
  * whenever a kobject of this type is registered with the kernel.
  */
-static struct kobj_type foo_ktype = {
+static const struct kobj_type foo_ktype = {
 	.sysfs_ops = &foo_sysfs_ops,
 	.release = foo_release,
 	.default_groups = foo_default_groups,

---
base-commit: 0983f6bf2bfc0789b51ddf7315f644ff4da50acb
change-id: 20230208-kobj_type-samples-19e709195c63

Best regards,
-- 
Thomas Weißschuh <linux@...ssschuh.net>