On Mon, 11 Jan 2021, Lee Jones wrote:

> Fixes the following W=1 kernel build warning(s):
> 
>  drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c: In function 
> ‘calculate_bandwidth’:
>  drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:2016:1: warning: 
> the frame size of 1216 bytes is larger than 1024 bytes [-Wframe-larger-than=]
> 
> Cc: Harry Wentland <harry.wentl...@amd.com>
> Cc: Leo Li <sunpeng...@amd.com>
> Cc: Alex Deucher <alexander.deuc...@amd.com>
> Cc: "Christian König" <christian.koe...@amd.com>
> Cc: David Airlie <airl...@linux.ie>
> Cc: Daniel Vetter <dan...@ffwll.ch>
> Cc: Colin Ian King <colin.k...@canonical.com>
> Cc: amd-gfx@lists.freedesktop.org
> Cc: dri-de...@lists.freedesktop.org
> Signed-off-by: Lee Jones <lee.jo...@linaro.org>
> ---
>  .../gpu/drm/amd/display/dc/calcs/dce_calcs.c  | 21 +++++++++++++++----
>  1 file changed, 17 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c 
> b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
> index 158d927c03e55..a0c69fae40ced 100644
> --- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
> +++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
> @@ -98,16 +98,16 @@ static void calculate_bandwidth(
>       int32_t num_cursor_lines;
>  
>       int32_t i, j, k;
> -     struct bw_fixed yclk[3];
> -     struct bw_fixed sclk[8];
> +     struct bw_fixed *yclk;
> +     struct bw_fixed *sclk;
>       bool d0_underlay_enable;
>       bool d1_underlay_enable;
>       bool fbc_enabled;
>       bool lpt_enabled;
>       enum bw_defines sclk_message;
>       enum bw_defines yclk_message;
> -     enum bw_defines tiling_mode[maximum_number_of_surfaces];
> -     enum bw_defines surface_type[maximum_number_of_surfaces];
> +     enum bw_defines *tiling_mode;
> +     enum bw_defines *surface_type;
>       enum bw_defines voltage;
>       enum bw_defines pipe_check;
>       enum bw_defines hsr_check;
> @@ -122,6 +122,14 @@ static void calculate_bandwidth(
>       int32_t number_of_displays_enabled_with_margin = 0;
>       int32_t number_of_aligned_displays_with_no_margin = 0;
>  
> +     yclk = kzalloc(sizeof(*yclk) * 3, GFP_KERNEL);
> +     sclk = kzalloc(sizeof(*sclk) * 8, GFP_KERNEL);
> +
> +     tiling_mode = kzalloc(sizeof(*tiling_mode) *
> +                           maximum_number_of_surfaces, GFP_KERNEL);
> +     surface_type = kzalloc(sizeof(*surface_type) *
> +                            maximum_number_of_surfaces, GFP_KERNEL);

Please refrain from merging this yet.  I missed some error checking.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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