[PATCH edk2-platforms v1 1/2] TigerlakeSiliconPkg: Fix build error with GCC5

["Takuto Naito" <naitaku@gmail.com>]

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3224

Fix build errors caused by "-Werror=unused-but-set-variable" with GCC5.
These build errors occur only with DEBUG target because
RELEASE_GCC5_X64_CC_FLAGS has "-Wno-unused-but-set-variable",
but DEBUG_GCC5_X64_CC_FLAGS doesn't.

Cc: Sai Chaganty <rangasai.v.chaganty@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Heng Luo <heng.luo@intel.com>
Signed-off-by: Takuto Naito <naitaku@gmail.com>
---
 .../PcieRp/LibraryPrivate/PcieClientRpLib/PcieClientRpLib.c  | 2 --
 .../IpBlock/Vtd/LibraryPrivate/DxeVtdInitLib/DxeVtdInitLib.c | 5 -----
 .../Pch/PchSmiDispatcher/Smm/PchSmiHelperClient.c            | 2 --
 3 files changed, 9 deletions(-)

diff --git a/Silicon/Intel/TigerlakeSiliconPkg/IpBlock/PcieRp/LibraryPrivate/PcieClientRpLib/PcieClientRpLib.c b/Silicon/Intel/TigerlakeSiliconPkg/IpBlock/PcieRp/LibraryPrivate/PcieClientRpLib/PcieClientRpLib.c
index 15d295a573..231cb367bc 100644
--- a/Silicon/Intel/TigerlakeSiliconPkg/IpBlock/PcieRp/LibraryPrivate/PcieClientRpLib/PcieClientRpLib.c
+++ b/Silicon/Intel/TigerlakeSiliconPkg/IpBlock/PcieRp/LibraryPrivate/PcieClientRpLib/PcieClientRpLib.c
@@ -104,12 +104,10 @@ ConfigureRpLtrOverride (
   UINT32       OvrEn;
   UINT32       OvrVal;
   BOOLEAN      IsCpuPcie;
-  UINT32       LtrCfgLock;
 
   IsCpuPcie = FALSE;
   OvrEn = 0;
   OvrVal = 0;
-  LtrCfgLock = 0;
 
   if (DevNum == SA_PEG0_DEV_NUM || DevNum == SA_PEG3_DEV_NUM) {
     IsCpuPcie = TRUE;
diff --git a/Silicon/Intel/TigerlakeSiliconPkg/IpBlock/Vtd/LibraryPrivate/DxeVtdInitLib/DxeVtdInitLib.c b/Silicon/Intel/TigerlakeSiliconPkg/IpBlock/Vtd/LibraryPrivate/DxeVtdInitLib/DxeVtdInitLib.c
index faac07c45d..e88abe550f 100644
--- a/Silicon/Intel/TigerlakeSiliconPkg/IpBlock/Vtd/LibraryPrivate/DxeVtdInitLib/DxeVtdInitLib.c
+++ b/Silicon/Intel/TigerlakeSiliconPkg/IpBlock/Vtd/LibraryPrivate/DxeVtdInitLib/DxeVtdInitLib.c
@@ -313,8 +313,6 @@ DmarTableUpdate (
   UINTN               Offset;
   UINTN               StructureLen;
   UINT64              McD0BaseAddress;
-  UINT32              GttMmAdr;
-  UINT64              McD2BaseAddress;
   UINT16              IgdMode;
   UINT16              GttMode;
   UINT32              IgdMemSize;
@@ -381,9 +379,6 @@ DmarTableUpdate (
     GttMemSize = (1 << GttMode) * (1024) * (1024);
   }
 
-  McD2BaseAddress = PCI_SEGMENT_LIB_ADDRESS (SA_SEG_NUM, IGD_BUS_NUM, IGD_DEV_NUM, IGD_FUN_NUM, 0);
-  GttMmAdr = (PciSegmentRead32 (McD2BaseAddress + R_SA_IGD_GTTMMADR)) & 0xFFFFFFF0;
-
   DmarTable->RmrrIgd.RmrrHeader.ReservedMemoryRegionBaseAddress   = (PciSegmentRead32 (McD0BaseAddress + R_SA_BGSM) & ~(0x01));
   DmarTable->RmrrIgd.RmrrHeader.ReservedMemoryRegionLimitAddress  = DmarTable->RmrrIgd.RmrrHeader.ReservedMemoryRegionBaseAddress + IgdMemSize + GttMemSize - 1;
   DEBUG ((DEBUG_INFO, "RMRR Base  address IGD %016lX\n", DmarTable->RmrrIgd.RmrrHeader.ReservedMemoryRegionBaseAddress));
diff --git a/Silicon/Intel/TigerlakeSiliconPkg/Pch/PchSmiDispatcher/Smm/PchSmiHelperClient.c b/Silicon/Intel/TigerlakeSiliconPkg/Pch/PchSmiDispatcher/Smm/PchSmiHelperClient.c
index 7693e76683..3adc05ce89 100644
--- a/Silicon/Intel/TigerlakeSiliconPkg/Pch/PchSmiDispatcher/Smm/PchSmiHelperClient.c
+++ b/Silicon/Intel/TigerlakeSiliconPkg/Pch/PchSmiDispatcher/Smm/PchSmiHelperClient.c
@@ -29,8 +29,6 @@ GetPcieRpNumber (
   OUT UINTN   *RpNumber
   )
 {
-  UINT64  RpBase;
-  RpBase = PCI_SEGMENT_LIB_ADDRESS (SA_SEG_NUM, SA_MC_BUS, RpDev, RpFun, 0);
   GetPchPcieRpNumber (RpDev, RpFun, RpNumber);
 }
 
-- 
2.30.1