[PATCH] BaseTools: Optimizing DscDefaultValue process in BuildReport

["Feng, YunhuaX" <yunhuax.feng@intel.com>]

DscDefaultValue from Dsc file has been parsed by ValueExpressionEx
when Dsc file parse, so only DscDefaultValue from FDF file need
ValueExpressionEx parse

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Yunhua Feng <yunhuax.feng@intel.com>
---
 BaseTools/Source/Python/build/BuildReport.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/BaseTools/Source/Python/build/BuildReport.py b/BaseTools/Source/Python/build/BuildReport.py
index d6e943d2f1..f2a6e6d87e 100644
--- a/BaseTools/Source/Python/build/BuildReport.py
+++ b/BaseTools/Source/Python/build/BuildReport.py
@@ -950,13 +950,13 @@ class PcdReport(object):
                     #
                     # Get PCD default value and their override relationship
                     #
                     DecDefaultValue = self.DecPcdDefault.get((Pcd.TokenCName, Pcd.TokenSpaceGuidCName, DecType))
                     DscDefaultValue = self.DscPcdDefault.get((Pcd.TokenCName, Pcd.TokenSpaceGuidCName))
-                    DscDefaultValBak= DscDefaultValue
+                    DscDefaultValBak = DscDefaultValue
                     DscDefaultValue = self.FdfPcdSet.get((Pcd.TokenCName, Key), DscDefaultValue)
-                    if DscDefaultValue:
+                    if DscDefaultValue != DscDefaultValBak:
                         DscDefaultValue = ValueExpressionEx(DscDefaultValue, Pcd.DatumType, self._GuidDict)(True)
                     InfDefaultValue = None
                     
                     PcdValue = DecDefaultValue
                     if DscDefaultValue:
-- 
2.12.2.windows.2