2020-10-12 20:47:42

by 赵军奎

[permalink] [raw]
Subject: [PATCH] drm/amd/display: remove no need return value

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 <[email protected]>
---
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


2020-10-13 16:33:32

by Alex Deucher

[permalink] [raw]
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 <[email protected]> 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 <[email protected]>
> ---
> 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
>
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