On Sun, 05 May 2024 09:28:25 +0200, Christophe JAILLET wrote:
> 'allegro_regmap_config' and 'allegro_sram_config' are not modified in this
> diver and are only used as a const struct regmap_config.
>
> Constifying these structures moves some data to a read-only section, so
> increase overall security.
>
> On a x86_64, with allmodconfig:
> Before:
> text data bss dec hex filename
> 79587 3706 116 83409 145d1 drivers/media/platform/allegro-dvt/allegro-core.o
>
> After:
> text data bss dec hex filename
> 80219 3066 116 83401 145c9 drivers/media/platform/allegro-dvt/allegro-core.o
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Reviewed-by: Michael Tretter <m.tretter@xxxxxxxxxxxxxx>
> ---
> drivers/media/platform/allegro-dvt/allegro-core.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/allegro-dvt/allegro-core.c b/drivers/media/platform/allegro-dvt/allegro-core.c
> index da61f9beb6b4..1a19fef62e81 100644
> --- a/drivers/media/platform/allegro-dvt/allegro-core.c
> +++ b/drivers/media/platform/allegro-dvt/allegro-core.c
> @@ -179,7 +179,7 @@ struct allegro_dev {
> struct list_head channels;
> };
>
> -static struct regmap_config allegro_regmap_config = {
> +static const struct regmap_config allegro_regmap_config = {
> .name = "regmap",
> .reg_bits = 32,
> .val_bits = 32,
> @@ -188,7 +188,7 @@ static struct regmap_config allegro_regmap_config = {
> .cache_type = REGCACHE_NONE,
> };
>
> -static struct regmap_config allegro_sram_config = {
> +static const struct regmap_config allegro_sram_config = {
> .name = "sram",
> .reg_bits = 32,
> .val_bits = 32,
> --
> 2.45.0
>
>
