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SubjectRe: [PATCH 09/12] drm/amd/display: Remove two unused variables 'is_pipe_split_expected' and 'state'
On Mon, Mar 27, 2023 at 7:35 PM Caio Novais <caionovais@usp.br> wrote:
>
> Compiling AMD GPU drivers displays two warnings:
>
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn32/dcn32_resource.c: In function ‘dcn32_acquire_post_bldn_3dlut’:
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn32/dcn32_resource.c:1614:31: warning: variable ‘state’ set but not used [-Wunused-but-set-variable]
> and
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn32/dcn32_resource.c: In function ‘dcn32_populate_dml_pipes_from_context’:
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn32/dcn32_resource.c:1916:17: warning: variable ‘is_pipe_split_expected’ set but not used [-Wunused-but-set-variable]
>
> Get rid of them by removing the variables.
>
> Signed-off-by: Caio Novais <caionovais@usp.br>
> ---
> drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
> index 74e50c09bb62..3435d3294e0b 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
> @@ -1611,7 +1611,6 @@ bool dcn32_acquire_post_bldn_3dlut(
> struct dc_transfer_func **shaper)
> {
> bool ret = false;
> - union dc_3dlut_state *state;
>
> ASSERT(*lut == NULL && *shaper == NULL);
> *lut = NULL;
> @@ -1620,7 +1619,6 @@ bool dcn32_acquire_post_bldn_3dlut(
> if (!res_ctx->is_mpc_3dlut_acquired[mpcc_id]) {
> *lut = pool->mpc_lut[mpcc_id];
> *shaper = pool->mpc_shaper[mpcc_id];
> - state = &pool->mpc_lut[mpcc_id]->state;
> res_ctx->is_mpc_3dlut_acquired[mpcc_id] = true;
> ret = true;
> }
> @@ -1913,7 +1911,6 @@ int dcn32_populate_dml_pipes_from_context(
> struct resource_context *res_ctx = &context->res_ctx;
> struct pipe_ctx *pipe;
> bool subvp_in_use = false;
> - uint8_t is_pipe_split_expected[MAX_PIPES] = {0};
> struct dc_crtc_timing *timing;
>
> dcn20_populate_dml_pipes_from_context(dc, context, pipes, fast_validate);
> @@ -2002,7 +1999,6 @@ int dcn32_populate_dml_pipes_from_context(
> }
>
> DC_FP_START();
> - is_pipe_split_expected[i] = dcn32_predict_pipe_split(context, &pipes[pipe_cnt]);
> DC_FP_END();

You can drop the DC_FP macros as well if you drop the function call.

Alex

>
> pipe_cnt++;
> --
> 2.40.0
>

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