To decrease the count of RunningApCount, InterlockedDecrement is
enough to achieve that.

This patch is to simplify RunningApCount decrement.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Zeng Star <star.zeng@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
---
 UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c b/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
index 54542262a2..9b477b6695 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
@@ -1450,11 +1450,11 @@ InternalSmmStartupAllAPs (
 
       //
       // Decrease the count to mark this processor(AP or BSP) as finished.
       //
       if (ProcToken != NULL) {
-        WaitForSemaphore (&ProcToken->RunningApCount);
+        InterlockedDecrement (&ProcToken->RunningApCount);
       }
     }
   }
 
   ReleaseAllAPs ();
-- 
2.16.2.windows.1



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