linux-kernel - Re: [PATCH] drm/amd/display: remove unused variables res_create_maximus_funcs and debug_defaults

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Date:   Tue, 23 May 2023 10:36:34 -0400
From:   Hamza Mahfooz <hamza.mahfooz@....com>
To:     Tom Rix <trix@...hat.com>, harry.wentland@....com,
        sunpeng.li@....com, Rodrigo.Siqueira@....com,
        alexander.deucher@....com, christian.koenig@....com,
        Xinhui.Pan@....com, airlied@...il.com, daniel@...ll.ch,
        qingqing.zhuo@....com, wenjing.liu@....com,
        aurabindo.pillai@....com, Samson.Tam@....com, gpiccoli@...lia.com
Cc:     dri-devel@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/amd/display: remove unused variables
 res_create_maximus_funcs and debug_defaults_diags

On 5/23/23 07:49, Tom Rix wrote:
> gcc with W=1 reports
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:1069:43: error:
>    ‘res_create_maximus_funcs’ defined but not used [-Werror=unused-const-variable=]
>   1069 | static const struct resource_create_funcs res_create_maximus_funcs = {
>        |                                           ^~~~~~~~~~~~~~~~~~~~~~~~
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:727:38: error:
>    ‘debug_defaults_diags’ defined but not used [-Werror=unused-const-variable=]
>    727 | static const struct dc_debug_options debug_defaults_diags = {
>        |                                      ^~~~~~~~~~~~~~~~~~~~
> 
> These variables are not used so remove them.
> 
> Signed-off-by: Tom Rix <trix@...hat.com>

Fixes: 00df97e1df57 ("drm/amd/display: Clean FPGA code in dc")

Applied, thanks!

> ---
>   .../drm/amd/display/dc/dcn20/dcn20_resource.c | 23 -------------------
>   1 file changed, 23 deletions(-)
> 
> 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 7dcae3183e07..6ef7e2634991 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> @@ -724,22 +724,6 @@ static const struct dc_debug_options debug_defaults_drv = {
>   		.underflow_assert_delay_us = 0xFFFFFFFF,
>   };
>   
> -static const struct dc_debug_options debug_defaults_diags = {
> -		.disable_dmcu = false,
> -		.force_abm_enable = false,
> -		.timing_trace = true,
> -		.clock_trace = true,
> -		.disable_dpp_power_gate = true,
> -		.disable_hubp_power_gate = true,
> -		.disable_clock_gate = true,
> -		.disable_pplib_clock_request = true,
> -		.disable_pplib_wm_range = true,
> -		.disable_stutter = true,
> -		.scl_reset_length10 = true,
> -		.underflow_assert_delay_us = 0xFFFFFFFF,
> -		.enable_tri_buf = true,
> -};
> -
>   void dcn20_dpp_destroy(struct dpp **dpp)
>   {
>   	kfree(TO_DCN20_DPP(*dpp));
> @@ -1066,13 +1050,6 @@ static const struct resource_create_funcs res_create_funcs = {
>   	.create_hwseq = dcn20_hwseq_create,
>   };
>   
> -static const struct resource_create_funcs res_create_maximus_funcs = {
> -	.read_dce_straps = NULL,
> -	.create_audio = NULL,
> -	.create_stream_encoder = NULL,
> -	.create_hwseq = dcn20_hwseq_create,
> -};
> -
>   static void dcn20_pp_smu_destroy(struct pp_smu_funcs **pp_smu);
>   
>   void dcn20_clock_source_destroy(struct clock_source **clk_src)
-- 
Hamza