I think you are right. Could you help contribute the patch to fix it?

Thanks,
Star
-----Original Message-----
From: edk2-devel [mailto:[email protected]] On Behalf Of wang 
xiaofeng
Sent: Friday, May 13, 2016 10:20 AM
To: [email protected]
Subject: [edk2] a minor logic error in 
PcAtChipsetPkg\Library\AcpiTimerLib\AcpiTimerLib.c

Hi Everyone ,
    Please refer to the code in AcpiTimerLibConstructor  in 
PcAtChipsetPkg\Library\AcpiTimerLib\AcpiTimerLib.c
    The orginal code is 


  if ((PciRead8 (PCI_LIB_ADDRESS (Bus, Device, Function, EnableRegister) & 
EnableMask) != EnableMask)) {


    The bracket place is not right, I think it should be 


   if ((PciRead8 (PCI_LIB_ADDRESS (Bus, Device, Function, EnableRegister)) & 
EnableMask) != EnableMask)
 
    Anyhow , the impact is minor since it will enable ACPI I/O base again.

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