linux-kernel - [PATCH] erofs: make kobj

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Message-Id: <20230209-kobj_type-erofs-v1-1-078c945e2c4b@weissschuh.net>
Date:   Thu, 09 Feb 2023 03:21:13 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Gao Xiang <xiang@...nel.org>, Chao Yu <chao@...nel.org>,
        Yue Hu <huyue2@...lpad.com>,
        Jeffle Xu <jefflexu@...ux.alibaba.com>
Cc:     linux-erofs@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] erofs: make kobj_type structures 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 definitions to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 fs/erofs/sysfs.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/erofs/sysfs.c b/fs/erofs/sysfs.c
index fd476961f742..435e515c0792 100644
--- a/fs/erofs/sysfs.c
+++ b/fs/erofs/sysfs.c
@@ -179,13 +179,13 @@ static const struct sysfs_ops erofs_attr_ops = {
 	.store	= erofs_attr_store,
 };
 
-static struct kobj_type erofs_sb_ktype = {
+static const struct kobj_type erofs_sb_ktype = {
 	.default_groups = erofs_groups,
 	.sysfs_ops	= &erofs_attr_ops,
 	.release	= erofs_sb_release,
 };
 
-static struct kobj_type erofs_ktype = {
+static const struct kobj_type erofs_ktype = {
 	.sysfs_ops	= &erofs_attr_ops,
 };
 
@@ -193,7 +193,7 @@ static struct kset erofs_root = {
 	.kobj	= {.ktype = &erofs_ktype},
 };
 
-static struct kobj_type erofs_feat_ktype = {
+static const struct kobj_type erofs_feat_ktype = {
 	.default_groups = erofs_feat_groups,
 	.sysfs_ops	= &erofs_attr_ops,
 };

---
base-commit: 0983f6bf2bfc0789b51ddf7315f644ff4da50acb
change-id: 20230209-kobj_type-erofs-0f0f4c901045

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