[edk2-devel] [PATCH 1/1] UefiCpuPkg/MpInitLib: Always initialize the DoDecrement variable

Lendacky, Thomas thomas.lendacky at amd.com
Tue Aug 18 13:10:07 UTC 2020


From: Tom Lendacky <thomas.lendacky at amd.com>

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2901

The DoDecrement variable in ApWakeupFunction () wasn't always being
initialized. Update the code to always fully initialize it.

Cc: Eric Dong <eric.dong at intel.com>
Cc: Ray Ni <ray.ni at intel.com>
Cc: Laszlo Ersek <lersek at redhat.com>
Cc: Rahul Kumar <rahul1.kumar at intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky at amd.com>
---
 UefiCpuPkg/Library/MpInitLib/MpLib.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c
index 90416c81b616..e24bdc64f930 100644
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.c
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c
@@ -885,9 +885,7 @@ ApWakeupFunction (
           UINT64                    Status;
           BOOLEAN                   DoDecrement;
 
-          if (CpuMpData->InitFlag == ApInitConfig) {
-            DoDecrement = TRUE;
-          }
+          DoDecrement = (CpuMpData->InitFlag == ApInitConfig) ? TRUE : FALSE;
 
           while (TRUE) {
             Msr.GhcbPhysicalAddress = AsmReadMsr64 (MSR_SEV_ES_GHCB);
-- 
2.28.0


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