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drm/amd/display: Remove unnecessary assignments

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[WHAT & HOW]
TimeForFetchingMetaPTE, TimeForFetchingRowInVBlank and
LinesToRequestPrefetchPixelData are local variables. They
are freed when CalculatePrefetchSchedule() ends and need
not clearing explicitly.

This fixes 21 UNUSED_VALUE issues reported by Coverity.

Reviewed-by: Nevenko Stupar <nevenko.stupar@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Hung 2024-09-23 14:24:49 -06:00 committed by Alex Deucher
parent 59b26c9ae5
commit b9c8ad7348
7 changed files with 0 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
View File

@ -785,12 +785,9 @@ static bool CalculatePrefetchSchedule(
if (MyError) {
*PrefetchBandwidth = 0;
TimeForFetchingMetaPTE = 0;
TimeForFetchingRowInVBlank = 0;
*DestinationLinesToRequestVMInVBlank = 0;
*DestinationLinesToRequestRowInVBlank = 0;
*DestinationLinesForPrefetch = 0;
LinesToRequestPrefetchPixelData = 0;
*VRatioPrefetchY = 0;
*VRatioPrefetchC = 0;
*RequiredPrefetchPixDataBW = 0;

3
drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
View File

@ -845,12 +845,9 @@ static bool CalculatePrefetchSchedule(
if (MyError) {
*PrefetchBandwidth = 0;
TimeForFetchingMetaPTE = 0;
TimeForFetchingRowInVBlank = 0;
*DestinationLinesToRequestVMInVBlank = 0;
*DestinationLinesToRequestRowInVBlank = 0;
*DestinationLinesForPrefetch = 0;
LinesToRequestPrefetchPixelData = 0;
*VRatioPrefetchY = 0;
*VRatioPrefetchC = 0;
*RequiredPrefetchPixDataBW = 0;

3
drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
View File

@ -1049,12 +1049,9 @@ static bool CalculatePrefetchSchedule(
if (MyError) {
*PrefetchBandwidth = 0;
TimeForFetchingMetaPTE = 0;
TimeForFetchingRowInVBlank = 0;
*DestinationLinesToRequestVMInVBlank = 0;
*DestinationLinesToRequestRowInVBlank = 0;
*DestinationLinesForPrefetch = 0;
LinesToRequestPrefetchPixelData = 0;
*VRatioPrefetchY = 0;
*VRatioPrefetchC = 0;
*RequiredPrefetchPixDataBWLuma = 0;

3
drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
View File

@ -1280,12 +1280,9 @@ static bool CalculatePrefetchSchedule(
if (MyError) {
*PrefetchBandwidth = 0;
TimeForFetchingMetaPTE = 0;
TimeForFetchingRowInVBlank = 0;
*DestinationLinesToRequestVMInVBlank = 0;
*DestinationLinesToRequestRowInVBlank = 0;
*DestinationLinesForPrefetch = 0;
LinesToRequestPrefetchPixelData = 0;
*VRatioPrefetchY = 0;
*VRatioPrefetchC = 0;
*RequiredPrefetchPixDataBWLuma = 0;

3
drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
View File

@ -1444,12 +1444,9 @@ static bool CalculatePrefetchSchedule(
if (MyError) {
*PrefetchBandwidth = 0;
TimeForFetchingMetaPTE = 0;
TimeForFetchingRowInVBlank = 0;
*DestinationLinesToRequestVMInVBlank = 0;
*DestinationLinesToRequestRowInVBlank = 0;
*DestinationLinesForPrefetch = 0;
LinesToRequestPrefetchPixelData = 0;
*VRatioPrefetchY = 0;
*VRatioPrefetchC = 0;
*RequiredPrefetchPixDataBWLuma = 0;

3
drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
View File

@ -1461,12 +1461,9 @@ static bool CalculatePrefetchSchedule(
if (MyError) {
*PrefetchBandwidth = 0;
TimeForFetchingMetaPTE = 0;
TimeForFetchingRowInVBlank = 0;
*DestinationLinesToRequestVMInVBlank = 0;
*DestinationLinesToRequestRowInVBlank = 0;
*DestinationLinesForPrefetch = 0;
LinesToRequestPrefetchPixelData = 0;
*VRatioPrefetchY = 0;
*VRatioPrefetchC = 0;
*RequiredPrefetchPixDataBWLuma = 0;

3
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
View File

@ -4097,12 +4097,9 @@ bool dml32_CalculatePrefetchSchedule(
if (MyError) {
*PrefetchBandwidth = 0;
TimeForFetchingMetaPTE = 0;
TimeForFetchingRowInVBlank = 0;
*DestinationLinesToRequestVMInVBlank = 0;
*DestinationLinesToRequestRowInVBlank = 0;
*DestinationLinesForPrefetch = 0;
LinesToRequestPrefetchPixelData = 0;
*VRatioPrefetchY = 0;
*VRatioPrefetchC = 0;
*RequiredPrefetchPixDataBWLuma = 0;