X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdePkg%2FLibrary%2FBaseTimerLibLocalApic%2FIpf%2FIpfTimerLib.c;fp=MdePkg%2FLibrary%2FBaseTimerLibLocalApic%2FIpf%2FIpfTimerLib.c;h=12803d9fa4120a858a0342032f7636573540d284;hp=800b5258e38a1dee7867b91b2238a7ae5bff18ab;hb=5117b83be8d73a9c5d15b236e57e4d194d1d9428;hpb=ed850fbf8be3c4389a4cf621a798f5113f7cba89

diff --git a/MdePkg/Library/BaseTimerLibLocalApic/Ipf/IpfTimerLib.c b/MdePkg/Library/BaseTimerLibLocalApic/Ipf/IpfTimerLib.c
index 800b5258e3..12803d9fa4 100644
--- 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;