X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=PcAtChipsetPkg%2FInclude%2FLibrary%2FIoApicLib.h;fp=PcAtChipsetPkg%2FInclude%2FLibrary%2FIoApicLib.h;h=c3eb0ce4b3960ca4238b93b22fdf00583f73760e;hp=bd9054be53b2186783183a3fdf7bf73ac8649d95;hb=8e22eab8772f4af13a3bd584ba44767721631073;hpb=6740ea74e25bf62e6e3fe05cbc14c5d6bbe5e35f

diff --git a/PcAtChipsetPkg/Include/Library/IoApicLib.h b/PcAtChipsetPkg/Include/Library/IoApicLib.h
index bd9054be53..c3eb0ce4b3 100644
--- a/PcAtChipsetPkg/Include/Library/IoApicLib.h
+++ b/PcAtChipsetPkg/Include/Library/IoApicLib.h
@@ -14,6 +14,8 @@
   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 **/
+#ifndef __IO_APIC_LIB_H__
+#define __IO_APIC_LIB_H__
 
 /**
   Read a 32-bit I/O APIC register.
@@ -100,3 +102,4 @@ IoApicConfigureInterrupt (
   IN BOOLEAN  LevelTriggered,
   IN BOOLEAN  AssertionLevel
   );
+#endif