2023-02-09 03:19:14

by Thomas Weißschuh

Subject: [PATCH] ext4: 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 <[email protected]>
---
fs/ext4/sysfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index d233c24ea342..364e3da49b03 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -496,13 +496,13 @@ static const struct sysfs_ops ext4_attr_ops = {
.store = ext4_attr_store,
};

-static struct kobj_type ext4_sb_ktype = {
+static const struct kobj_type ext4_sb_ktype = {
.default_groups = ext4_groups,
.sysfs_ops = &ext4_attr_ops,
.release = ext4_sb_release,
};

-static struct kobj_type ext4_feat_ktype = {
+static const struct kobj_type ext4_feat_ktype = {
.default_groups = ext4_feat_groups,
.sysfs_ops = &ext4_attr_ops,
.release = (void (*)(struct kobject *))kfree,

---
base-commit: 0983f6bf2bfc0789b51ddf7315f644ff4da50acb
change-id: 20230209-kobj_type-ext4-962d5425769a

Best regards,
--
Thomas Weißschuh <[email protected]>

2023-02-17 15:39:55

by Jan Kara

Subject: Re: [PATCH] ext4: make kobj_type structures constant

On Thu 09-02-23 03:18:35, Thomas Wei?schuh 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 Wei?schuh <[email protected]>

Looks good. Feel free to add:

Reviewed-by: Jan Kara <[email protected]>

Honza

> ---
> fs/ext4/sysfs.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
> index d233c24ea342..364e3da49b03 100644
> --- a/fs/ext4/sysfs.c
> +++ b/fs/ext4/sysfs.c
> @@ -496,13 +496,13 @@ static const struct sysfs_ops ext4_attr_ops = {
> .store = ext4_attr_store,
> };
>
> -static struct kobj_type ext4_sb_ktype = {
> +static const struct kobj_type ext4_sb_ktype = {
> .default_groups = ext4_groups,
> .sysfs_ops = &ext4_attr_ops,
> .release = ext4_sb_release,
> };
>
> -static struct kobj_type ext4_feat_ktype = {
> +static const struct kobj_type ext4_feat_ktype = {
> .default_groups = ext4_feat_groups,
> .sysfs_ops = &ext4_attr_ops,
> .release = (void (*)(struct kobject *))kfree,
>
> ---
> base-commit: 0983f6bf2bfc0789b51ddf7315f644ff4da50acb
> change-id: 20230209-kobj_type-ext4-962d5425769a
>
> Best regards,
> --
> Thomas Wei?schuh <[email protected]>
>
--
Jan Kara <[email protected]>
SUSE Labs, CR

2023-03-08 04:33:51

by Theodore Ts'o

Subject: Re: [PATCH] ext4: make kobj_type structures constant

On Thu, 09 Feb 2023 03:18:35 +0000, 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 definitions to prevent
> modification at runtime.
>
>
> [...]

Applied, thanks!

[1/1] ext4: make kobj_type structures constant
commit: 60db00e0a1490adcdc8b80887f7caf954d8bcd3e

Best regards,
--
Theodore Ts'o <[email protected]>