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Diffstat (limited to 'MdePkg/Library/BasePciCf8Lib/PciLib.c')
-rw-r--r--MdePkg/Library/BasePciCf8Lib/PciLib.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/MdePkg/Library/BasePciCf8Lib/PciLib.c b/MdePkg/Library/BasePciCf8Lib/PciLib.c
index a2fdc3e820..fe27c850c1 100644
--- a/MdePkg/Library/BasePciCf8Lib/PciLib.c
+++ b/MdePkg/Library/BasePciCf8Lib/PciLib.c
@@ -53,7 +53,7 @@
**/
#define PCI_TO_CF8_ADDRESS(A) \
- ((UINT32) ((((A) >> 4) & 0xffffff00) | ((A) & 0xfc) | 0x80000000))
+ ((UINT32) ((((A) >> 4) & 0x00ffff00) | ((A) & 0xfc) | 0x80000000))
/**
Reads an 8-bit PCI configuration register.