drm/amd/display: Remove unused MaxUsedBW variable

Remove the variable MaxUsedBW from the function
DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation.
As a side-effect, the variables MaxPerPlaneVActiveWRBandwidth and
WRBandwidth are also removed.

This was pointed by clang with the following warning:

drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_mode_vba_30.c:3043:10:
warning: variable 'MaxUsedBW' set but not used [-Wunused-but-set-variable]
                double MaxUsedBW = 0;
                       ^
1 warning generated.

Reviewed-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
index 842eb94ebe04b8074b00928512b4ab9cbb0d5a17..876b321b30ca6517e5a55b497017758a2add3530 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
@@ -3037,40 +3037,12 @@ static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerforman
 
        {
                //Maximum Bandwidth Used
-               double TotalWRBandwidth = 0;
-               double MaxPerPlaneVActiveWRBandwidth = 0;
-               double WRBandwidth = 0;
-               double MaxUsedBW = 0;
-               for (k = 0; k < v->NumberOfActivePlanes; ++k) {
-                       if (v->WritebackEnable[k] == true
-                                       && v->WritebackPixelFormat[k] == dm_444_32) {
-                               WRBandwidth = v->WritebackDestinationWidth[k] * v->WritebackDestinationHeight[k]
-                                               / (v->HTotal[k] * v->WritebackSourceHeight[k] / v->PixelClock[k]) * 4;
-                       } else if (v->WritebackEnable[k] == true) {
-                               WRBandwidth = v->WritebackDestinationWidth[k] * v->WritebackDestinationHeight[k]
-                                               / (v->HTotal[k] * v->WritebackSourceHeight[k] / v->PixelClock[k]) * 8;
-                       }
-                       TotalWRBandwidth = TotalWRBandwidth + WRBandwidth;
-                       MaxPerPlaneVActiveWRBandwidth = dml_max(MaxPerPlaneVActiveWRBandwidth, WRBandwidth);
-               }
-
                v->TotalDataReadBandwidth = 0;
                for (k = 0; k < v->NumberOfActivePlanes; ++k) {
                        v->TotalDataReadBandwidth = v->TotalDataReadBandwidth
                                        + v->ReadBandwidthPlaneLuma[k]
                                        + v->ReadBandwidthPlaneChroma[k];
                }
-
-               {
-                       double MaxPerPlaneVActiveRDBandwidth = 0;
-                       for (k = 0; k < v->NumberOfActivePlanes; ++k) {
-                               MaxPerPlaneVActiveRDBandwidth = dml_max(MaxPerPlaneVActiveRDBandwidth,
-                                               v->ReadBandwidthPlaneLuma[k] + v->ReadBandwidthPlaneChroma[k]);
-
-                       }
-               }
-
-               MaxUsedBW = MaxTotalRDBandwidth + TotalWRBandwidth;
        }
 
        // VStartup Margin