linux-kernel - Re: [PATCH] drm/amd/display: Remove duplicate/repeating expressions

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Date:   Fri, 10 Feb 2023 14:36:56 -0500
From:   Harry Wentland <harry.wentland@....com>
To:     Deepak R Varma <drv@...lo.com>, Leo Li <sunpeng.li@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc:     Saurabh Singh Sengar <ssengar@...rosoft.com>,
        Praveen Kumar <kumarpraveen@...ux.microsoft.com>
Subject: Re: [PATCH] drm/amd/display: Remove duplicate/repeating expressions

On 2/10/23 05:00, Deepak R Varma wrote:
> Remove duplicate or repeating expressions in the if condition
> evaluation. Issue identified using doubletest.cocci Coccinelle semantic
> patch.
> 
> Signed-off-by: Deepak R Varma <drv@...lo.com>

Reviewed-by: Harry Wentland <harry.wentland@....com>

Harry

> ---
>  .../gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c    | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
> index 4b8f5fa0f0ad..ae89760d887d 100644
> --- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
> +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
> @@ -2335,8 +2335,7 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
>  
>  			if (mode_lib->vba.DSCEnable[k] && mode_lib->vba.ForcedOutputLinkBPP[k] != 0)
>  				mode_lib->vba.DSCOnlyIfNecessaryWithBPP = true;
> -			if ((mode_lib->vba.DSCEnable[k] || mode_lib->vba.DSCEnable[k])
> -					&& mode_lib->vba.OutputFormat[k] == dm_n422
> +			if (mode_lib->vba.DSCEnable[k] && mode_lib->vba.OutputFormat[k] == dm_n422
>  					&& !mode_lib->vba.DSC422NativeSupport)
>  				mode_lib->vba.DSC422NativeNotSupported = true;
>  
> @@ -3639,7 +3638,6 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
>  			if (mode_lib->vba.SourcePixelFormat[k] != dm_444_64
>  					&& mode_lib->vba.SourcePixelFormat[k] != dm_444_32
>  					&& mode_lib->vba.SourcePixelFormat[k] != dm_444_16
> -					&& mode_lib->vba.SourcePixelFormat[k] != dm_444_16
>  					&& mode_lib->vba.SourcePixelFormat[k] != dm_444_8
>  					&& mode_lib->vba.SourcePixelFormat[k] != dm_rgbe) {
>  				if (mode_lib->vba.ViewportWidthChroma[k] > mode_lib->vba.SurfaceWidthC[k]