1 files changed, 2 insertions, 23 deletions
diff --git a/MdePkg/Include/IndustryStandard/Tpm20.h b/MdePkg/Include/IndustryStandard/Tpm20.h
index 52092bd614..609b727ac8 100644
--- a/MdePkg/Include/IndustryStandard/Tpm20.h
+++ b/MdePkg/Include/IndustryStandard/Tpm20.h
@@ -15,14 +15,6 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 
 #include <IndustryStandard/Tpm12.h>
 
-///
-/// Temporary disable 4201 to support anonymous unions
-///
-#if defined (_MSC_EXTENSIONS)
-#pragma warning( push )
-#pragma warning ( disable : 4201 )
-#endif
-
 #pragma pack (1)
 
 // Annex A Algorithm Constants
@@ -1256,10 +1248,7 @@ typedef union {
   TPMI_AES_KEY_BITS    aes;
   TPMI_SM4_KEY_BITS    SM4;
   TPM_KEY_BITS         sym;
-  union {
-    TPMI_ALG_HASH      xor;
-    TPMI_ALG_HASH      xor_;
-  };
+  TPMI_ALG_HASH        xor_;
 } TPMU_SYM_KEY_BITS;
 
 // Table 123 - TPMU_SYM_MODE Union
@@ -1332,10 +1321,7 @@ typedef struct {
 // Table 136 - TPMU_SCHEME_KEYEDHASH Union
 typedef union {
   TPMS_SCHEME_HMAC    hmac;
-  union {
-    TPMS_SCHEME_XOR   xor;
-    TPMS_SCHEME_XOR   xor_;
-  };
+  TPMS_SCHEME_XOR     xor_;
 } TPMU_SCHEME_KEYEDHASH;
 
 // Table 137 - TPMT_KEYEDHASH_SCHEME Structure
@@ -1824,11 +1810,4 @@ typedef struct {
 #define HASH_ALG_SHA512   0x00000008
 #define HASH_ALG_SM3_256  0x00000010
 
-///
-/// Temporary disable 4201 to support anonymous unions
-///
-#if defined (_MSC_EXTENSIONS)
-#pragma warning( pop )
-#endif
-
 #endif