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-rw-r--r--MdePkg/Library/BaseLib/X64/Mwait.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/MdePkg/Library/BaseLib/X64/Mwait.S b/MdePkg/Library/BaseLib/X64/Mwait.S
index 238a9bc2ab..00565af8f8 100644
--- a/MdePkg/Library/BaseLib/X64/Mwait.S
+++ b/MdePkg/Library/BaseLib/X64/Mwait.S
@@ -34,5 +34,5 @@ ASM_GLOBAL ASM_PFX(AsmMwait)
ASM_PFX(AsmMwait):
mov %ecx,%eax
mov %edx,%ecx
- mwait %eax,%ecx
+ mwait
ret