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

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Message-ID: <87wnld31u6.fsf@intel.com>
Date:   Fri, 12 Nov 2021 16:06:41 +0200
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Colin King <colin.king@...onical.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] drm/i915: make array states static const

On Wed, 15 Sep 2021, Colin King <colin.king@...onical.com> wrote:
> From: Colin Ian King <colin.king@...onical.com>
>
> 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@...onical.com>
> ---
>  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