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Message-ID: <CADnq5_MH2EYWuumqtZ+UPF-5TAW_+91F6mHFEu3MScTGQOQ0Dg@mail.gmail.com>
Date:   Tue, 13 Oct 2020 09:11:36 -0400
From:   Alex Deucher <alexdeucher@...il.com>
To:     Bernard Zhao <bernard@...o.com>
Cc:     Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        Anthony Koo <Anthony.Koo@....com>, Aric Cyr <aric.cyr@....com>,
        Nicholas Kazlauskas <nicholas.kazlauskas@....com>,
        Yongqiang Sun <yongqiang.sun@....com>,
        Bhawanpreet Lakha <Bhawanpreet.Lakha@....com>,
        Jun Lei <jun.lei@....com>, Samson Tam <Samson.Tam@....com>,
        Krunoslav Kovac <Krunoslav.Kovac@....com>,
        Reza Amini <Reza.Amini@....com>,
        Brandon Syu <Brandon.Syu@....com>,
        Charlene Liu <Charlene.Liu@....com>,
        Aurabindo Pillai <aurabindo.pillai@....com>,
        Wyatt Wood <wyatt.wood@....com>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-mediatek@...ts.infradead.org, opensource.kernel@...o.com
Subject: Re: [PATCH] drm/amd/display: remove no need return value

Applied.  Thanks!

Alex

On Mon, Oct 12, 2020 at 9:44 AM Bernard Zhao <bernard@...o.com> wrote:
>
> Functions (disable_all_writeback_pipes_for_stream &
> dc_enable_stereo & dc_post_update_surfaces_to_stream)
> always return true, there is no need to keep the return value.
> This change is to make the code a bit more readable.
>
> Signed-off-by: Bernard Zhao <bernard@...o.com>
> ---
>  drivers/gpu/drm/amd/display/dc/core/dc.c   | 17 +++++------------
>  drivers/gpu/drm/amd/display/dc/dc.h        |  2 +-
>  drivers/gpu/drm/amd/display/dc/dc_stream.h |  2 +-
>  3 files changed, 7 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
> index 92eb1ca1634f..8dc598a632b5 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
> @@ -761,7 +761,7 @@ static bool dc_construct(struct dc *dc,
>         return false;
>  }
>
> -static bool disable_all_writeback_pipes_for_stream(
> +static void disable_all_writeback_pipes_for_stream(
>                 const struct dc *dc,
>                 struct dc_stream_state *stream,
>                 struct dc_state *context)
> @@ -770,8 +770,6 @@ static bool disable_all_writeback_pipes_for_stream(
>
>         for (i = 0; i < stream->num_wb_info; i++)
>                 stream->writeback_info[i].wb_enabled = false;
> -
> -       return true;
>  }
>
>  void apply_ctx_interdependent_lock(struct dc *dc, struct dc_state *context, struct dc_stream_state *stream, bool lock)
> @@ -1213,13 +1211,12 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc,
>         return true;
>  }
>
> -bool dc_enable_stereo(
> +void dc_enable_stereo(
>         struct dc *dc,
>         struct dc_state *context,
>         struct dc_stream_state *streams[],
>         uint8_t stream_count)
>  {
> -       bool ret = true;
>         int i, j;
>         struct pipe_ctx *pipe;
>
> @@ -1234,8 +1231,6 @@ bool dc_enable_stereo(
>                                 dc->hwss.setup_stereo(pipe, dc);
>                 }
>         }
> -
> -       return ret;
>  }
>
>  /*
> @@ -1448,18 +1443,18 @@ static bool is_flip_pending_in_pipes(struct dc *dc, struct dc_state *context)
>         return false;
>  }
>
> -bool dc_post_update_surfaces_to_stream(struct dc *dc)
> +void dc_post_update_surfaces_to_stream(struct dc *dc)
>  {
>         int i;
>         struct dc_state *context = dc->current_state;
>
>         if ((!dc->optimized_required) || dc->optimize_seamless_boot_streams > 0)
> -               return true;
> +               return;
>
>         post_surface_trace(dc);
>
>         if (is_flip_pending_in_pipes(dc, context))
> -               return true;
> +               return;
>
>         for (i = 0; i < dc->res_pool->pipe_count; i++)
>                 if (context->res_ctx.pipe_ctx[i].stream == NULL ||
> @@ -1472,8 +1467,6 @@ bool dc_post_update_surfaces_to_stream(struct dc *dc)
>
>         dc->optimized_required = false;
>         dc->wm_optimized_required = false;
> -
> -       return true;
>  }
>
>  struct dc_state *dc_create_state(struct dc *dc)
> diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
> index f50ef4255020..f79a3c318757 100644
> --- a/drivers/gpu/drm/amd/display/dc/dc.h
> +++ b/drivers/gpu/drm/amd/display/dc/dc.h
> @@ -962,7 +962,7 @@ struct dc_flip_addrs {
>         bool triplebuffer_flips;
>  };
>
> -bool dc_post_update_surfaces_to_stream(
> +void dc_post_update_surfaces_to_stream(
>                 struct dc *dc);
>
>  #include "dc_stream.h"
> diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
> index d9888f316da6..0047ab33f88e 100644
> --- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
> +++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
> @@ -391,7 +391,7 @@ enum dc_status dc_validate_stream(struct dc *dc, struct dc_stream_state *stream)
>   * Enable stereo when commit_streams is not required,
>   * for example, frame alternate.
>   */
> -bool dc_enable_stereo(
> +void dc_enable_stereo(
>         struct dc *dc,
>         struct dc_state *context,
>         struct dc_stream_state *streams[],
> --
> 2.28.0
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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