drm/amd/display: Remove unnecessary assignments

[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>

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
index 565f3c4..0c8c4a0 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
@@ -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;

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
index 9d6675e..c935903 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
@@ -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;

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
index eb3ed96..cd8cca6 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
@@ -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;

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 4822fad..cee1b35 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
@@ -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;

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
index 2b275e6..f567a90 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
@@ -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;

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
index debfa31..5865e8f 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
@@ -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;

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
index d92fb42..86ac7d5 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
@@ -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;