Reviewed-by: Liming Gao <liming....@intel.com>

> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of 
> Yonghong Zhu
> Sent: Tuesday, July 17, 2018 10:04 AM
> To: edk2-devel@lists.01.org
> Subject: [edk2] [Patch] BaseTools: Remove the duplicate Pcd items
> 
> The case is the Pcd item both used in 1 module inf and 1 lib inf, and
> in the DSC component section, it override the Pcd value.
> In the module, the pcd value is the override value, but in the lib inf
> the pcd value is the value that in the DSC PCD section's value, then it
> cause the Pcd value is different in the module and lib. but actually we
> only need use the Pcd value in the module to decide whether it use the
> same value.
> 
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Yonghong Zhu <yonghong....@intel.com>
> ---
>  BaseTools/Source/Python/AutoGen/AutoGen.py | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/BaseTools/Source/Python/AutoGen/AutoGen.py 
> b/BaseTools/Source/Python/AutoGen/AutoGen.py
> index 289309f..cf53c2b 100644
> --- a/BaseTools/Source/Python/AutoGen/AutoGen.py
> +++ b/BaseTools/Source/Python/AutoGen/AutoGen.py
> @@ -1289,11 +1289,11 @@ class PlatformAutoGen(AutoGen):
>      def CollectFixedAtBuildPcds(self):
>          for LibAuto in self.LibraryAutoGenList:
>              FixedAtBuildPcds = {}
>              ShareFixedAtBuildPcdsSameValue = {}
>              for Module in LibAuto._ReferenceModules:
> -                for Pcd in Module.FixedAtBuildPcds + 
> LibAuto.FixedAtBuildPcds:
> +                for Pcd in set(Module.FixedAtBuildPcds + 
> LibAuto.FixedAtBuildPcds):
>                      DefaultValue = Pcd.DefaultValue
>                      # Cover the case: DSC component override the Pcd value 
> and the Pcd only used in one Lib
>                      if Pcd in Module.LibraryPcdList:
>                          Index = Module.LibraryPcdList.index(Pcd)
>                          DefaultValue = 
> Module.LibraryPcdList[Index].DefaultValue
> --
> 2.6.1.windows.1
> 
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