Re: [PATCH] drm/bridge: make a const array static, makes object smaller

From: Laurent Pinchart
Date: Thu Feb 04 2021 - 14:12:09 EST


Hi Colin,

Thank you for the patch.

On Thu, Feb 04, 2021 at 06:33:44PM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Don't populate the const array frs_limits on the stack but instead make
> it static. Makes the object code smaller by 128 bytes:
>
> Before:
> text data bss dec hex filename
> 24845 7440 64 32349 7e5d ./drivers/gpu/drm/bridge/tc358768.o
>
> After:
> text data bss dec hex filename
> 24749 7408 64 32221 7ddd ./drivers/gpu/drm/bridge/tc358768.o
>
> (gcc version 10.2.0)
>
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>

> ---
> drivers/gpu/drm/bridge/tc358768.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c
> index 8ed8302d6bbb..2495ea46b091 100644
> --- a/drivers/gpu/drm/bridge/tc358768.c
> +++ b/drivers/gpu/drm/bridge/tc358768.c
> @@ -291,7 +291,7 @@ static int tc358768_calc_pll(struct tc358768_priv *priv,
> const struct drm_display_mode *mode,
> bool verify_only)
> {
> - const u32 frs_limits[] = {
> + static const u32 frs_limits[] = {
> 1000000000,
> 500000000,
> 250000000,

--
Regards,

Laurent Pinchart