REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1740

Add a 'static' storage-class specifier to the global variables
that only used in a single file to minimize the name collisions.
This is only for the variable named 'mExitBootServicesEvent'.

Cc: Laszlo Ersek <[email protected]>
Cc: Jian J Wang <[email protected]>
Cc: Hao Wu <[email protected]>
Cc: Ray Ni <[email protected]>
Cc: Star Zeng <[email protected]>
Cc: Liming Gao <[email protected]>
Cc: Dandan Bi <[email protected]>
Signed-off-by: Zhichao Gao <[email protected]>
---
 .../FirmwarePerformanceDataTableDxe/FirmwarePerformanceDxe.c  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git 
a/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableDxe/FirmwarePerformanceDxe.c
 
b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableDxe/FirmwarePerformanceDxe.c
index 9713048f1f..61a7704b37 100644
--- 
a/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableDxe/FirmwarePerformanceDxe.c
+++ 
b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableDxe/FirmwarePerformanceDxe.c
@@ -5,7 +5,7 @@
   for Firmware Basic Boot Performance Record and other boot performance 
records,
   and install FPDT to ACPI table.
 
-  Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2011 - 2019, Intel Corporation. All rights reserved.<BR>
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -40,7 +40,7 @@ EFI_RSC_HANDLER_PROTOCOL    *mRscHandlerProtocol = NULL;
 BOOLEAN                     mLockBoxReady = FALSE;
 EFI_EVENT                   mReadyToBootEvent;
 EFI_EVENT                   mLegacyBootEvent;
-EFI_EVENT                   mExitBootServicesEvent;
+static EFI_EVENT            mExitBootServicesEvent;
 UINTN                       mFirmwarePerformanceTableTemplateKey  = 0;
 BOOLEAN                     mDxeCoreReportStatusCodeEnable = FALSE;
 
-- 
2.21.0.windows.1


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