Fixes the following compiler warning in VS2019.

edk2\EmbeddedPkg\Library\GdbSerialDebugPortLib\GdbSerialDebugPortLib.c(127):
error C2220: the following warning is treated as an error
edk2\EmbeddedPkg\Library\GdbSerialDebugPortLib\GdbSerialDebugPortLib.c(127):
warning C4244: 'function': conversion from 'UINTN' to 'UINT32', possible
loss of data

edk2\EmbeddedPkg\Library\PrePiLib\FwVol.c(347): error C2220: the following
warning is treated as an error
edk2\EmbeddedPkg\Library\PrePiLib\FwVol.c(347): warning C4244: 'function':
conversion from 'UINTN' to 'UINT32', possible loss of data

Cc: Leif Lindholm <l...@nuviainc.com>
Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
Cc: Abner Chang <abner.ch...@hpe.com>
Cc: Daniel Schaefer <daniel.schae...@hpe.com>
Signed-off-by: Wenyi Xie <xiewen...@huawei.com>
---
 EmbeddedPkg/Library/GdbSerialDebugPortLib/GdbSerialDebugPortLib.c | 2 +-
 EmbeddedPkg/Library/PrePiLib/FwVol.c                              | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/EmbeddedPkg/Library/GdbSerialDebugPortLib/GdbSerialDebugPortLib.c 
b/EmbeddedPkg/Library/GdbSerialDebugPortLib/GdbSerialDebugPortLib.c
index d2bafcf69b60..0f50a8b64191 100644
--- a/EmbeddedPkg/Library/GdbSerialDebugPortLib/GdbSerialDebugPortLib.c
+++ b/EmbeddedPkg/Library/GdbSerialDebugPortLib/GdbSerialDebugPortLib.c
@@ -18,7 +18,7 @@
 
 
 EFI_DEBUGPORT_PROTOCOL  *gDebugPort = NULL;
-UINTN                   gTimeOut = 0;
+UINT32                  gTimeOut = 0;
 
 /**
   The constructor function initializes the UART.
diff --git a/EmbeddedPkg/Library/PrePiLib/FwVol.c 
b/EmbeddedPkg/Library/PrePiLib/FwVol.c
index 881506edddaf..46ea5f733f60 100644
--- a/EmbeddedPkg/Library/PrePiLib/FwVol.c
+++ b/EmbeddedPkg/Library/PrePiLib/FwVol.c
@@ -298,7 +298,7 @@ FfsProcessSection (
   UINT16                                  SectionAttribute;
   UINT32                                  AuthenticationStatus;
   CHAR8                                   *CompressedData;
-  UINTN                                   CompressedDataLength;
+  UINT32                                  CompressedDataLength;
 
 
   *OutputBuffer = NULL;
-- 
2.20.1.windows.1



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