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-rw-r--r--MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c18
1 files changed, 2 insertions, 16 deletions
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
index 16f14ca2c..a1627807e 100644
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
@@ -1473,8 +1473,6 @@ PciIovParseVfBar (
UINT32 Value;
UINT32 OriginalValue;
UINT32 Mask;
- UINT32 Data;
- UINT8 Index;
EFI_STATUS Status;
//
@@ -1592,12 +1590,7 @@ PciIovParseVfBar (
//
// Fix the length to support some spefic 64 bit BAR
//
- Data = Value;
- Index = 0;
- for (Data = Value; Data != 0; Data >>= 1) {
- Index ++;
- }
- Value |= ((UINT32)(-1) << Index);
+ Value |= ((UINT32) -1 << HighBitSet32 (Value));
//
// Calculate the size of 64bit bar
@@ -1672,8 +1665,6 @@ PciParseBar (
UINT32 Value;
UINT32 OriginalValue;
UINT32 Mask;
- UINT32 Data;
- UINT8 Index;
EFI_STATUS Status;
OriginalValue = 0;
@@ -1810,12 +1801,7 @@ PciParseBar (
//
// Fix the length to support some spefic 64 bit BAR
//
- Data = Value;
- Index = 0;
- for (Data = Value; Data != 0; Data >>= 1) {
- Index ++;
- }
- Value |= ((UINT32)(-1) << Index);
+ Value |= ((UINT32)(-1) << HighBitSet32 (Value));
//
// Calculate the size of 64bit bar