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-rw-r--r--EdkModulePkg/Bus/Pci/AtapiPassThru/Dxe/AtapiPassThru.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/EdkModulePkg/Bus/Pci/AtapiPassThru/Dxe/AtapiPassThru.h b/EdkModulePkg/Bus/Pci/AtapiPassThru/Dxe/AtapiPassThru.h
index 659b37c..fda5736 100644
--- a/EdkModulePkg/Bus/Pci/AtapiPassThru/Dxe/AtapiPassThru.h
+++ b/EdkModulePkg/Bus/Pci/AtapiPassThru/Dxe/AtapiPassThru.h
@@ -21,7 +21,7 @@
///
/// bit definition
///
-#define bit(a) 1 << (a)
+#define bit(a) (1 << (a))
#define MAX_TARGET_ID 4