[PATCH] MdeModulePkg VarCheck: #### in L"Boot####" are upper case hex

[Star Zeng <star.zeng@intel.com>]

UEFI spec:
Each load option entry resides in a Boot####, Driver####, SysPrep####,
OsRecovery#### or PlatformRecovery#### variable where #### is replaced
by a unique option number in printable hexadecimal representation using
the digits 0-9, and the upper case versions of the characters A-F
(0000-FFFF).

The patch also makes L"HwErrRec####" follow this rule.

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
---
 MdeModulePkg/Library/VarCheckLib/VarCheckLib.c           | 16 ++++++++--------
 .../Library/VarCheckUefiLib/VarCheckUefiLibNullClass.c   | 14 +++++++-------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/MdeModulePkg/Library/VarCheckLib/VarCheckLib.c b/MdeModulePkg/Library/VarCheckLib/VarCheckLib.c
index 41b209da169f..5ca0d3edca44 100644
--- a/MdeModulePkg/Library/VarCheckLib/VarCheckLib.c
+++ b/MdeModulePkg/Library/VarCheckLib/VarCheckLib.c
@@ -1,7 +1,7 @@
 /** @file
   Implementation functions and structures for var check services.
 
-Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -96,17 +96,17 @@ VARIABLE_ENTRY_PROPERTY mVarCheckVariableWithWildcardName[] = {
 };
 
 /**
-  Check if a Unicode character is a hexadecimal character.
+  Check if a Unicode character is an upper case hexadecimal character.
 
-  This function checks if a Unicode character is a
-  hexadecimal character.  The valid hexadecimal character is
-  L'0' to L'9', L'a' to L'f', or L'A' to L'F'.
+  This function checks if a Unicode character is an upper case
+  hexadecimal character.  The valid upper case hexadecimal character is
+  L'0' to L'9', or L'A' to L'F'.
 
 
   @param[in] Char       The character to check against.
 
-  @retval TRUE          If the Char is a hexadecmial character.
-  @retval FALSE         If the Char is not a hexadecmial character.
+  @retval TRUE          If the Char is an upper case hexadecmial character.
+  @retval FALSE         If the Char is not an upper case hexadecmial character.
 
 **/
 BOOLEAN
@@ -115,7 +115,7 @@ VarCheckInternalIsHexaDecimalDigitCharacter (
   IN CHAR16             Char
   )
 {
-  return (BOOLEAN) ((Char >= L'0' && Char <= L'9') || (Char >= L'A' && Char <= L'F') || (Char >= L'a' && Char <= L'f'));
+  return (BOOLEAN) ((Char >= L'0' && Char <= L'9') || (Char >= L'A' && Char <= L'F'));
 }
 
 /**
diff --git a/MdeModulePkg/Library/VarCheckUefiLib/VarCheckUefiLibNullClass.c b/MdeModulePkg/Library/VarCheckUefiLib/VarCheckUefiLibNullClass.c
index 8f7126e6aea6..80dc6341adcf 100644
--- a/MdeModulePkg/Library/VarCheckUefiLib/VarCheckUefiLibNullClass.c
+++ b/MdeModulePkg/Library/VarCheckUefiLib/VarCheckUefiLibNullClass.c
@@ -678,17 +678,17 @@ EFI_GUID *mUefiDefinedGuid[] = {
 };
 
 /**
-  Check if a Unicode character is a hexadecimal character.
+  Check if a Unicode character is an upper case hexadecimal character.
 
-  This function checks if a Unicode character is a
-  hexadecimal character.  The valid hexadecimal character is
-  L'0' to L'9', L'a' to L'f', or L'A' to L'F'.
+  This function checks if a Unicode character is an upper case
+  hexadecimal character.  The valid upper case hexadecimal character is
+  L'0' to L'9', or L'A' to L'F'.
 
 
   @param[in] Char       The character to check against.
 
-  @retval TRUE          If the Char is a hexadecmial character.
-  @retval FALSE         If the Char is not a hexadecmial character.
+  @retval TRUE          If the Char is an upper case hexadecmial character.
+  @retval FALSE         If the Char is not an upper case hexadecmial character.
 
 **/
 BOOLEAN
@@ -697,7 +697,7 @@ VarCheckUefiIsHexaDecimalDigitCharacter (
   IN CHAR16             Char
   )
 {
-  return (BOOLEAN) ((Char >= L'0' && Char <= L'9') || (Char >= L'A' && Char <= L'F') || (Char >= L'a' && Char <= L'f'));
+  return (BOOLEAN) ((Char >= L'0' && Char <= L'9') || (Char >= L'A' && Char <= L'F'));
 }
 
 /**
-- 
2.7.0.windows.1