update GetPerformanceCounterProperties() declare

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1518 6f19259b-4bc3-4df7-8a09-765794883524
2006-09-13 01:10:51 +00:00
parent ed850fbf8b
commit 5117b83be8
4 changed files with 8 additions and 8 deletions
--- a/MdePkg/Library/BaseTimerLibLocalApic/Ipf/IpfTimerLib.c
+++ b/MdePkg/Library/BaseTimerLibLocalApic/Ipf/IpfTimerLib.c
@@ -188,8 +188,8 @@ GetPerformanceCounter (
 UINT64
 EFIAPI
 GetPerformanceCounterProperties (
-  IN      UINT64                    *StartValue,
-  IN      UINT64                    *EndValue
+  OUT      UINT64                    *StartValue,  OPTIONAL
+  OUT      UINT64                    *EndValue     OPTIONAL
  )
 {
  PAL_PROC_RETURN                   PalRet;