Re: [PATCH 6/6] Revert "drm/amd/display: Drop unnecessary guard from DC resource"

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On 2022-06-03 14:50, Rodrigo Siqueira wrote:
> This reverts commit 78baa3c4dfff4375b109bc5e19663a2f7fad1190.
> 
> This commit introduced the below compilation error when using
> allmodconfig:
> 
> error: implicit declaration of function ‘remove_hpo_dp_link_enc_from_ctx’; did you mean ‘add_hpo_dp_link_enc_to_ctx’? [-Werror=implicit-function-declaration]
>  2010 |   remove_hpo_dp_link_enc_from_ctx(&new_ctx->res_ctx, del_pipe, del_pipe->stream);
>       |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>       |   add_hpo_dp_link_enc_to_ctx
> 
> Fixes: 78baa3c4dfff43 ("drm/amd/display: Drop unnecessary guard from DC resource")
> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
> ---
>  drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
> index 7357efb8b439..9bbdfcd6b3a4 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
> @@ -2002,6 +2002,7 @@ enum dc_status dc_remove_stream_from_ctx(
>  	if (dc->res_pool->funcs->link_enc_unassign)
>  		dc->res_pool->funcs->link_enc_unassign(new_ctx, del_pipe->stream);
>  
> +#if defined(CONFIG_DRM_AMD_DC_DCN)
>  	if (is_dp_128b_132b_signal(del_pipe)) {
>  		update_hpo_dp_stream_engine_usage(
>  			&new_ctx->res_ctx, dc->res_pool,
> @@ -2009,6 +2010,7 @@ enum dc_status dc_remove_stream_from_ctx(
>  			false);
>  		remove_hpo_dp_link_enc_from_ctx(&new_ctx->res_ctx, del_pipe, del_pipe->stream);

Wouldn't a better solution be to drop the DCN guards around
remove_hpo_dp_link_enc_from_ctx and release_hpo_dp_link_enc?
Not sure why those were guarded in the first place.

Harry

>  	}
> +#endif
>  
>  	if (del_pipe->stream_res.audio)
>  		update_audio_usage(




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