linux-kernel - [PATCH net-next v2 2/2] net-sysfs: make kobj

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Message-Id: <20230211-kobj_type-net-v2-2-013b59e59bf3@weissschuh.net>
Date:   Tue, 14 Feb 2023 04:23:12 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <razor@...ckwall.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     bridge@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH net-next v2 2/2] net-sysfs: 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>
---
 net/core/net-sysfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index ca55dd747d6c..a3771bba841a 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1040,7 +1040,7 @@ static void rx_queue_get_ownership(const struct kobject *kobj,
 	net_ns_get_ownership(net, uid, gid);
 }
 
-static struct kobj_type rx_queue_ktype __ro_after_init = {
+static const struct kobj_type rx_queue_ktype = {
 	.sysfs_ops = &rx_queue_sysfs_ops,
 	.release = rx_queue_release,
 	.default_groups = rx_queue_default_groups,
@@ -1643,7 +1643,7 @@ static void netdev_queue_get_ownership(const struct kobject *kobj,
 	net_ns_get_ownership(net, uid, gid);
 }
 
-static struct kobj_type netdev_queue_ktype __ro_after_init = {
+static const struct kobj_type netdev_queue_ktype = {
 	.sysfs_ops = &netdev_queue_sysfs_ops,
 	.release = netdev_queue_release,
 	.default_groups = netdev_queue_default_groups,

-- 
2.39.1