[PATCH net-next v2 0/2] net: make kobj_type structures constant

[PATCH net-next v2 0/2] net: make kobj_type structures constant

[Thomas Weißschuh]

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@weissschuh.net>
---
Changes in v2:
- drop sunrpc patch from series
- use "net-next" patch prefix
- Link to v1: https://lore.kernel.org/r/20230211-kobj_type-net-v1-0-e3bdaa5d8a78@weissschuh.net

---
Thomas Weißschuh (2):
      net: bridge: make kobj_type structure constant
      net-sysfs: make kobj_type structures constant

 net/bridge/br_if.c   | 2 +-
 net/core/net-sysfs.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
---
base-commit: f6feea56f66d34259c4222fa02e8171c4f2673d1
change-id: 20230211-kobj_type-net-99f71346aed2

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

[PATCH net-next v2 1/2] net: bridge: make kobj_type structure constant

[Thomas Weißschuh]

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@weissschuh.net>
---
 net/bridge/br_if.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index ad13b48e3e08..24f01ff113f0 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -269,7 +269,7 @@ static void brport_get_ownership(const struct kobject *kobj, kuid_t *uid, kgid_t
 	net_ns_get_ownership(dev_net(p->dev), uid, gid);
 }
 
-static struct kobj_type brport_ktype = {
+static const struct kobj_type brport_ktype = {
 #ifdef CONFIG_SYSFS
 	.sysfs_ops = &brport_sysfs_ops,
 #endif

-- 
2.39.1

[PATCH net-next v2 2/2] net-sysfs: make kobj_type structures constant

[Thomas Weißschuh]

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@weissschuh.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

Re: [PATCH net-next v2 1/2] net: bridge: make kobj_type structure constant

[Nikolay Aleksandrov]

On 14/02/2023 06:23, Thomas Weißschuh wrote:
> 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@weissschuh.net>
> ---
>  net/bridge/br_if.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
> index ad13b48e3e08..24f01ff113f0 100644
> --- a/net/bridge/br_if.c
> +++ b/net/bridge/br_if.c
> @@ -269,7 +269,7 @@ static void brport_get_ownership(const struct kobject *kobj, kuid_t *uid, kgid_t
>  	net_ns_get_ownership(dev_net(p->dev), uid, gid);
>  }
>  
> -static struct kobj_type brport_ktype = {
> +static const struct kobj_type brport_ktype = {
>  #ifdef CONFIG_SYSFS
>  	.sysfs_ops = &brport_sysfs_ops,
>  #endif
> 

Acked-by: Nikolay Aleksandrov <razor@blackwall.org>

Re: [PATCH net-next v2 0/2] net: make kobj_type structures constant

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net-next.git (master)
by Jakub Kicinski <kuba@kernel.org>:

On Tue, 14 Feb 2023 04:23:10 +0000 you wrote:
> 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@weissschuh.net>
> 
> [...]

Here is the summary with links:
  - [net-next,v2,1/2] net: bridge: make kobj_type structure constant
    https://git.kernel.org/netdev/net-next/c/e8c6cbd7656e
  - [net-next,v2,2/2] net-sysfs: make kobj_type structures constant
    https://git.kernel.org/netdev/net-next/c/b2793517052d

You are awesome, thank you!
-- 
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