[1/2] drm/amd/display: dc_link: code clean up on enable_link_dp function
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Message ID 990112183d2bc344bd921bb55eee2f8cc2cd8bd5.1582752490.git.melissa.srw@gmail.com
State Superseded
Headers show
Series
  • drm/amd/display: dc_link: cleaning up some code style issues
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Commit Message

Melissa Wen Feb. 26, 2020, 10:07 p.m. UTC
Coding style clean up on enable_link_dp function as suggested by
checkpatch.pl:

CHECK: Lines should not end with a '('
WARNING: line over 80 characters
WARNING: suspect code indent for conditional statements (8, 24)
CHECK: braces {} should be used on all arms of this statement
ERROR: else should follow close brace '}'
CHECK: Comparison to NULL could be written
       "link->preferred_training_settings.fec_enable"

Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link.c | 32 +++++++++----------
 1 file changed, 16 insertions(+), 16 deletions(-)

Comments

Rodrigo Siqueira Feb. 27, 2020, 3:04 p.m. UTC | #1
Hi,

First of all, thank you for your patch.

I just have one tiny comment inline.

On 02/26, Melissa Wen wrote:
> Coding style clean up on enable_link_dp function as suggested by
> checkpatch.pl:
> 
> CHECK: Lines should not end with a '('
> WARNING: line over 80 characters
> WARNING: suspect code indent for conditional statements (8, 24)
> CHECK: braces {} should be used on all arms of this statement
> ERROR: else should follow close brace '}'
> CHECK: Comparison to NULL could be written
>        "link->preferred_training_settings.fec_enable"
> 
> Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
> ---
>  drivers/gpu/drm/amd/display/dc/core/dc_link.c | 32 +++++++++----------
>  1 file changed, 16 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> index a09119c10d7c..0f28b5694144 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> @@ -1480,9 +1480,8 @@ static void enable_stream_features(struct pipe_ctx *pipe_ctx)
>  	}
>  }
>  
> -static enum dc_status enable_link_dp(
> -		struct dc_state *state,
> -		struct pipe_ctx *pipe_ctx)
> +static enum dc_status enable_link_dp(struct dc_state *state,
> +				     struct pipe_ctx *pipe_ctx)
>  {
>  	struct dc_stream_state *stream = pipe_ctx->stream;
>  	enum dc_status status;
> @@ -1512,27 +1511,28 @@ static enum dc_status enable_link_dp(
>  
>  	pipe_ctx->stream_res.pix_clk_params.requested_sym_clk =
>  			link_settings.link_rate * LINK_RATE_REF_FREQ_IN_KHZ;
> -	if (state->clk_mgr && !apply_seamless_boot_optimization)
> -		state->clk_mgr->funcs->update_clocks(state->clk_mgr, state, false);
> +	if (state->clk_mgr && !apply_seamless_boot_optimization) {
> +		state->clk_mgr->funcs->update_clocks(state->clk_mgr,
> +						     state, false);
> +	}

This `if` condition only has one action, which means that you don't need
to add `{}` in the above statement. See:

https://www.kernel.org/doc/html/v4.10/process/coding-style.html#placing-braces-and-spaces

Thanks

>  
>  	skip_video_pattern = true;
>  
>  	if (link_settings.link_rate == LINK_RATE_LOW)
> -			skip_video_pattern = false;
> -
> -	if (perform_link_training_with_retries(
> -			&link_settings,
> -			skip_video_pattern,
> -			LINK_TRAINING_ATTEMPTS,
> -			pipe_ctx,
> -			pipe_ctx->stream->signal)) {
> +		skip_video_pattern = false;
> +
> +	if (perform_link_training_with_retries(&link_settings,
> +					       skip_video_pattern,
> +					       LINK_TRAINING_ATTEMPTS,
> +					       pipe_ctx,
> +					       pipe_ctx->stream->signal)) {
>  		link->cur_link_settings = link_settings;
>  		status = DC_OK;
> -	}
> -	else
> +	} else {
>  		status = DC_FAIL_DP_LINK_TRAINING;
> +	}
>  
> -	if (link->preferred_training_settings.fec_enable != NULL)
> +	if (link->preferred_training_settings.fec_enable)
>  		fec_enable = *link->preferred_training_settings.fec_enable;
>  	else
>  		fec_enable = true;
> -- 
> 2.25.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
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Patch
diff mbox series

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index a09119c10d7c..0f28b5694144 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1480,9 +1480,8 @@  static void enable_stream_features(struct pipe_ctx *pipe_ctx)
 	}
 }
 
-static enum dc_status enable_link_dp(
-		struct dc_state *state,
-		struct pipe_ctx *pipe_ctx)
+static enum dc_status enable_link_dp(struct dc_state *state,
+				     struct pipe_ctx *pipe_ctx)
 {
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	enum dc_status status;
@@ -1512,27 +1511,28 @@  static enum dc_status enable_link_dp(
 
 	pipe_ctx->stream_res.pix_clk_params.requested_sym_clk =
 			link_settings.link_rate * LINK_RATE_REF_FREQ_IN_KHZ;
-	if (state->clk_mgr && !apply_seamless_boot_optimization)
-		state->clk_mgr->funcs->update_clocks(state->clk_mgr, state, false);
+	if (state->clk_mgr && !apply_seamless_boot_optimization) {
+		state->clk_mgr->funcs->update_clocks(state->clk_mgr,
+						     state, false);
+	}
 
 	skip_video_pattern = true;
 
 	if (link_settings.link_rate == LINK_RATE_LOW)
-			skip_video_pattern = false;
-
-	if (perform_link_training_with_retries(
-			&link_settings,
-			skip_video_pattern,
-			LINK_TRAINING_ATTEMPTS,
-			pipe_ctx,
-			pipe_ctx->stream->signal)) {
+		skip_video_pattern = false;
+
+	if (perform_link_training_with_retries(&link_settings,
+					       skip_video_pattern,
+					       LINK_TRAINING_ATTEMPTS,
+					       pipe_ctx,
+					       pipe_ctx->stream->signal)) {
 		link->cur_link_settings = link_settings;
 		status = DC_OK;
-	}
-	else
+	} else {
 		status = DC_FAIL_DP_LINK_TRAINING;
+	}
 
-	if (link->preferred_training_settings.fec_enable != NULL)
+	if (link->preferred_training_settings.fec_enable)
 		fec_enable = *link->preferred_training_settings.fec_enable;
 	else
 		fec_enable = true;