Re: [PATCH 3/3] crypto/nx: Constify static attribute_group structs

[Daniel Axtens]

Hi Rikard,

> The only usage of these is to pass their address to
> sysfs_{create,remove}_group(), which takes pointers to const struct
> attribute_group. Make them const to allow the compiler to put them in
> read-only memory.

I checked the file. Indeed, those structs are only used in
sysfs_{create,remove}_group. So I agree that they can be constified.

They also pass all the automated tests:
https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20220210202805.7750-4-rikard.falkeborn@xxxxxxxxx/

Reviewed-by: Daniel Axtens <dja@xxxxxxxxxx>

Kind regards,
Daniel

>
> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>
> ---
>  drivers/crypto/nx/nx-common-pseries.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/crypto/nx/nx-common-pseries.c b/drivers/crypto/nx/nx-common-pseries.c
> index 4e304f6081e4..7584a34ba88c 100644
> --- a/drivers/crypto/nx/nx-common-pseries.c
> +++ b/drivers/crypto/nx/nx-common-pseries.c
> @@ -962,7 +962,7 @@ static struct attribute *nx842_sysfs_entries[] = {
>  	NULL,
>  };
>  
> -static struct attribute_group nx842_attribute_group = {
> +static const struct attribute_group nx842_attribute_group = {
>  	.name = NULL,		/* put in device directory */
>  	.attrs = nx842_sysfs_entries,
>  };
> @@ -992,7 +992,7 @@ static struct attribute *nxcop_caps_sysfs_entries[] = {
>  	NULL,
>  };
>  
> -static struct attribute_group nxcop_caps_attr_group = {
> +static const struct attribute_group nxcop_caps_attr_group = {
>  	.name	=	"nx_gzip_caps",
>  	.attrs	=	nxcop_caps_sysfs_entries,
>  };
> -- 
> 2.35.1