X-Git-Url: http://git.etherboot.org/people/mcb30/edk2.git/blobdiff_plain/aa175b2ec44a0de0d5eff2253f90e98f5b594f21..bcaef535a0f9bbff01154ec3f32790c26bf1dffa:/edk2/MdePkg/Library/BaseTimerLibLocalApic/Ipf/IpfTimerLib.c

diff --git a/edk2/MdePkg/Library/BaseTimerLibLocalApic/Ipf/IpfTimerLib.c b/edk2/MdePkg/Library/BaseTimerLibLocalApic/Ipf/IpfTimerLib.c
index 800b5258e..12803d9fa 100644
--- a/edk2/MdePkg/Library/BaseTimerLibLocalApic/Ipf/IpfTimerLib.c
+++ b/edk2/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;