[PATCH 3/3] SecurityPkg Tcg2: Remove internal implementation of IsZeroBuffer()

[Hao Wu <hao.a.wu@intel.com>]

This commit removes the internal implementation of the function
IsZeroBuffer(). Instead, it will use the one from BaseMemoryLib.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
---
 SecurityPkg/Tcg/Tcg2Config/Tcg2ConfigImpl.c | 27 ---------------------------
 SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.c           | 27 ---------------------------
 SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c           | 27 ---------------------------
 3 files changed, 81 deletions(-)

diff --git a/SecurityPkg/Tcg/Tcg2Config/Tcg2ConfigImpl.c b/SecurityPkg/Tcg/Tcg2Config/Tcg2ConfigImpl.c
index db38bd4..5f4420c 100644
--- a/SecurityPkg/Tcg/Tcg2Config/Tcg2ConfigImpl.c
+++ b/SecurityPkg/Tcg/Tcg2Config/Tcg2ConfigImpl.c
@@ -617,33 +617,6 @@ FillBufferWithTCG2EventLogFormat (
 }
 
 /**
-  Check if buffer is all zero.
-
-  @param[in] Buffer      Buffer to be checked.
-  @param[in] BufferSize  Size of buffer to be checked.
-
-  @retval TRUE  Buffer is all zero.
-  @retval FALSE Buffer is not all zero.
-**/
-BOOLEAN
-IsZeroBuffer (
-  IN VOID  *Buffer,
-  IN UINTN BufferSize
-  )
-{
-  UINT8 *BufferData;
-  UINTN Index;
-
-  BufferData = Buffer;
-  for (Index = 0; Index < BufferSize; Index++) {
-    if (BufferData[Index] != 0) {
-      return FALSE;
-    }
-  }
-  return TRUE;
-}
-
-/**
   This function publish the TCG2 configuration Form for TPM device.
 
   @param[in, out]  PrivateData   Points to TCG2 configuration private data.
diff --git a/SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.c b/SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.c
index 95219c0..319f245 100644
--- a/SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.c
+++ b/SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.c
@@ -202,33 +202,6 @@ InternalDumpHex (
 }
 
 /**
-  Check if buffer is all zero.
-
-  @param[in] Buffer      Buffer to be checked.
-  @param[in] BufferSize  Size of buffer to be checked.
-
-  @retval TRUE  Buffer is all zero.
-  @retval FALSE Buffer is not all zero.
-**/
-BOOLEAN
-IsZeroBuffer (
-  IN VOID  *Buffer,
-  IN UINTN BufferSize
-  )
-{
-  UINT8 *BufferData;
-  UINTN Index;
-
-  BufferData = Buffer;
-  for (Index = 0; Index < BufferSize; Index++) {
-    if (BufferData[Index] != 0) {
-      return FALSE;
-    }
-  }
-  return TRUE;
-}
-
-/**
   Get All processors EFI_CPU_LOCATION in system. LocationBuf is allocated inside the function
   Caller is responsible to free LocationBuf.
 
diff --git a/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c b/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c
index a830ba8..0d779f1 100644
--- a/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c
+++ b/SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c
@@ -225,33 +225,6 @@ EndofPeiSignalNotifyCallBack (
 }
 
 /**
-  Check if buffer is all zero.
-
-  @param[in] Buffer      Buffer to be checked.
-  @param[in] BufferSize  Size of buffer to be checked.
-
-  @retval TRUE  Buffer is all zero.
-  @retval FALSE Buffer is not all zero.
-**/
-BOOLEAN
-IsZeroBuffer (
-  IN VOID  *Buffer,
-  IN UINTN BufferSize
-  )
-{
-  UINT8 *BufferData;
-  UINTN Index;
-
-  BufferData = Buffer;
-  for (Index = 0; Index < BufferSize; Index++) {
-    if (BufferData[Index] != 0) {
-      return FALSE;
-    }
-  }
-  return TRUE;
-}
-
-/**
   Get TPML_DIGEST_VALUES data size.
 
   @param[in]     DigestList    TPML_DIGEST_VALUES data.
-- 
1.9.5.msysgit.0