Re: [PATCH] drm/amd/display: fix struct init in update_bounding_box

From: Alex Deucher
Date: Tue Aug 27 2019 - 14:02:41 EST


On Tue, Aug 27, 2019 at 1:33 PM Raul E Rangel <rrangel@xxxxxxxxxxxx> wrote:
>
> dcn20_resource.c:2636:9: error: missing braces around initializer [-Werror=missing-braces]
> struct _vcs_dpi_voltage_scaling_st calculated_states[MAX_CLOCK_LIMIT_STATES] = {0};
> ^
>
> Fixes: 7ed4e6352c16f ("drm/amd/display: Add DCN2 HW Sequencer and Resource")
>
> Signed-off-by: Raul E Rangel <rrangel@xxxxxxxxxxxx>
> ---
>
> drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> index b949e202d6cb..d8dd99bfa275 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> @@ -2633,7 +2633,7 @@ static void cap_soc_clocks(
> static void update_bounding_box(struct dc *dc, struct _vcs_dpi_soc_bounding_box_st *bb,
> struct pp_smu_nv_clock_table *max_clocks, unsigned int *uclk_states, unsigned int num_states)
> {
> - struct _vcs_dpi_voltage_scaling_st calculated_states[MAX_CLOCK_LIMIT_STATES] = {0};
> + struct _vcs_dpi_voltage_scaling_st calculated_states[MAX_CLOCK_LIMIT_STATES] = {};

I think it would be better to just use a memset. Different compilers
seems to do the wrong thing with these sort of initializations.

Alex

> int i;
> int num_calculated_states = 0;
> int min_dcfclk = 0;
> --
> 2.23.0.187.g17f5b7556c-goog
>
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