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* [PATCH] drm/i915/dpll: make read-only array div1_vals static const
@ 2022-03-07 22:00 Colin Ian King
  2022-03-09  9:48 ` Jani Nikula
  0 siblings, 1 reply; 2+ messages in thread
From: Colin Ian King @ 2022-03-07 22:00 UTC (permalink / raw)
  To: Jani Nikula, Joonas Lahtinen, Rodrigo Vivi, Tvrtko Ursulin,
	David Airlie, Daniel Vetter, intel-gfx, dri-devel
  Cc: kernel-janitors, linux-kernel

Don't populate the read-only array div1_vals on the stack but
instead make it static const. Also makes the object code a little
smaller.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
 drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index 569903d47aea..17668b58b30c 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
@@ -2759,7 +2759,7 @@ static bool icl_mg_pll_find_divisors(int clock_khz, bool is_dp, bool use_ssc,
 				     bool is_dkl)
 {
 	u32 dco_min_freq, dco_max_freq;
-	int div1_vals[] = {7, 5, 3, 2};
+	static const int div1_vals[] = {7, 5, 3, 2};
 	unsigned int i;
 	int div2;
 
-- 
2.35.1


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] drm/i915/dpll: make read-only array div1_vals static const
  2022-03-07 22:00 [PATCH] drm/i915/dpll: make read-only array div1_vals static const Colin Ian King
@ 2022-03-09  9:48 ` Jani Nikula
  0 siblings, 0 replies; 2+ messages in thread
From: Jani Nikula @ 2022-03-09  9:48 UTC (permalink / raw)
  To: Colin Ian King, Joonas Lahtinen, Rodrigo Vivi, Tvrtko Ursulin,
	David Airlie, Daniel Vetter, intel-gfx, dri-devel
  Cc: kernel-janitors, linux-kernel

On Mon, 07 Mar 2022, Colin Ian King <colin.i.king@gmail.com> wrote:
> Don't populate the read-only array div1_vals on the stack but
> instead make it static const. Also makes the object code a little
> smaller.

Thanks, but this was just fixed in commit fe70b262e781 ("drm/i915: Move
a bunch of stuff into rodata from the stack").

BR,
Jani.

>
> Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> index 569903d47aea..17668b58b30c 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> @@ -2759,7 +2759,7 @@ static bool icl_mg_pll_find_divisors(int clock_khz, bool is_dp, bool use_ssc,
>  				     bool is_dkl)
>  {
>  	u32 dco_min_freq, dco_max_freq;
> -	int div1_vals[] = {7, 5, 3, 2};
> +	static const int div1_vals[] = {7, 5, 3, 2};
>  	unsigned int i;
>  	int div2;

-- 
Jani Nikula, Intel Open Source Graphics Center

^ permalink raw reply	[flat|nested] 2+ messages in thread

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