2023-02-27 03:20:06

by Thomas Weißschuh

Subject: [PATCH] firmware: qemu_fw_cfg: 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 <[email protected]>
---
drivers/firmware/qemu_fw_cfg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index a69399a6b7c0..f41de793f41b 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -452,7 +452,7 @@ static void fw_cfg_sysfs_release_entry(struct kobject *kobj)
}

/* kobj_type: ties together all properties required to register an entry */
-static struct kobj_type fw_cfg_sysfs_entry_ktype = {
+static const struct kobj_type fw_cfg_sysfs_entry_ktype = {
.default_groups = fw_cfg_sysfs_entry_groups,
.sysfs_ops = &fw_cfg_sysfs_attr_ops,
.release = fw_cfg_sysfs_release_entry,

---
base-commit: 2fcd07b7ccd5fd10b2120d298363e4e6c53ccf9c
change-id: 20230227-kobj_type-firmware-qemu-7746b6320db0

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

2023-03-03 19:38:48

by Gabriel L. Somlo

Subject: Re: [PATCH] firmware: qemu_fw_cfg: make kobj_type structure constant

On Mon, Feb 27, 2023 at 03:19:56AM +0000, 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 definition to prevent
> modification at runtime.
>
> Signed-off-by: Thomas Wei?schuh <[email protected]>
> ---
> drivers/firmware/qemu_fw_cfg.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
> index a69399a6b7c0..f41de793f41b 100644
> --- a/drivers/firmware/qemu_fw_cfg.c
> +++ b/drivers/firmware/qemu_fw_cfg.c
> @@ -452,7 +452,7 @@ static void fw_cfg_sysfs_release_entry(struct kobject *kobj)
> }
>
> /* kobj_type: ties together all properties required to register an entry */
> -static struct kobj_type fw_cfg_sysfs_entry_ktype = {
> +static const struct kobj_type fw_cfg_sysfs_entry_ktype = {

Reviewed-by: Gabriel L. Somlo <[email protected]>

Thanks,
--Gabriel

> .default_groups = fw_cfg_sysfs_entry_groups,
> .sysfs_ops = &fw_cfg_sysfs_attr_ops,
> .release = fw_cfg_sysfs_release_entry,
>
> ---
> base-commit: 2fcd07b7ccd5fd10b2120d298363e4e6c53ccf9c
> change-id: 20230227-kobj_type-firmware-qemu-7746b6320db0
>
> Best regards,
> --
> Thomas Wei?schuh <[email protected]>
>