[edk2-devel] [PATCH 0/2] Support FDT library.

[Andrei Warkentin]

I think in general it would be nice to understand the long term picture of a change, esp. since there is already FDT support in EDK2 in various forms (with libraries and drivers depending on the existing FdtLib). So it would really of confusing to see another FDT library in MdePkg, without a clear reasoning for the work (this isn't reflected in the BZ) and a clear action plan to end up with just one FDT library in MdePkg in some identified time frame.

I do think FDT lib *does* belong in MdePkg, but it seems the shortest path to get there is to simply move the existing EmbeddedPkg one (and update all users). Subsequent cleanup can be incremental. And regardless, every existing FdtLib user ought to be updated to use the new one, so there need to be more patches (we're not just throwing the code over the wall, right?)

A

> -----Original Message-----
> From: Pedro Falcato <pedro.falcato at gmail.com>
> Sent: Friday, April 7, 2023 8:24 AM
> To: devel at edk2.groups.io; Tan, Lean Sheng <sheng.tan at 9elements.com>
> Cc: Warkentin, Andrei <andrei.warkentin at intel.com>; Lin, Benny
> <benny.lin at intel.com>; Kinney, Michael D <michael.d.kinney at intel.com>;
> Gao, Liming <gaoliming at byosoft.com.cn>; Liu, Zhiguang
> <zhiguang.liu at intel.com>; Sean Brogan <sean.brogan at microsoft.com>;
> Michael Kubacki <mikuback at linux.microsoft.com>
> Subject: Re: [edk2-devel] [PATCH 0/2] Support FDT library.
> 
> On Thu, Apr 6, 2023 at 5:34 PM Sheng Lean Tan
> <sheng.tan at 9elements.com> wrote:
> >
> > Thanks for the nice feedback Pedro, Gerd and Andrei! Yeah it seems like a
> valid concern here as Mik mentioned on edk2-libc, and it seems to fits edk2
> long term interest on this.
> > Can we file this as an issue in Bugzilla for tracking or something? Since this
> will take some time to work on this as it involves a bigger discussion,
> personally I think we could get this FDT patch in first meanwhile, and also
> remove the FDT from Embedded Pkg as next step, per discussion with Leif?
> > What do you think?
> 
> I'm all for not merging this without a proper solution in that regard (I even
> presented a quick RFC solution which wasn't tested by anyone involved in
> this patch, yet).
> 
> But if there really is an urgent need for this lib, I'm O-K with merging this
> given that all my concerns are addressed (minus libc duplication).
> 
> --
> Pedro


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