Re: [PATCH][next] drm/i915: make array states static const

From: Jani Nikula
Date: Fri Nov 12 2021 - 09:06:49 EST


On Wed, 15 Sep 2021, Colin King <colin.king@xxxxxxxxxxxxx> wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Don't populate the read-only array states on the stack but instead it
> static. Also makes the object code smaller.

Finally pushed, sorry for the delay.

BR,
Jani.

>
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_display_power.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
> index cce1a926fcc1..a60710348613 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -893,7 +893,7 @@ static u32
> sanitize_target_dc_state(struct drm_i915_private *dev_priv,
> u32 target_dc_state)
> {
> - u32 states[] = {
> + static const u32 states[] = {
> DC_STATE_EN_UPTO_DC6,
> DC_STATE_EN_UPTO_DC5,
> DC_STATE_EN_DC3CO,

--
Jani Nikula, Intel Open Source Graphics Center