OvmfPkg/XenBusDxe: Fix a nasm warning about instruction not lockable.

[mirror_edk2.git] / OvmfPkg / XenBusDxe / X64 / TestAndClearBit.nasm

diff --git a/OvmfPkg/XenBusDxe/X64/TestAndClearBit.nasm b/OvmfPkg/XenBusDxe/X64/TestAndClearBit.nasm
index 38ac5490cbbe06a0b7dd74f6c04148d57496b28b..a4859a62a2508dac57de7a1b88fbbe9ee5d02e80 100644 (file)
--- a/OvmfPkg/XenBusDxe/X64/TestAndClearBit.nasm
+++ b/OvmfPkg/XenBusDxe/X64/TestAndClearBit.nasm
@@ -9,8 +9,7 @@ SECTION .text
 ;   );\r
 global ASM_PFX(TestAndClearBit)\r
 ASM_PFX(TestAndClearBit):\r
-  lock\r
-  btr [rdx], ecx\r
+  lock btr [rdx], ecx\r
   sbb eax, eax\r
   ret\r
 \r