linux-kernel - Re: Makefile in libfdt shows non-existent files

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Message-ID: <CAL_JsqJPxSCbSCmQNDPA9YMr_6_amZkYQ3yp8Gx8t7-d=JarTg@mail.gmail.com>
Date:   Fri, 14 Jul 2017 20:19:05 -0500
From:   Rob Herring <robh@...nel.org>
To:     Kyle Yan <kyan@...eaurora.org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Makefile in libfdt shows non-existent files

On Fri, Jul 14, 2017 at 7:52 PM, Kyle Yan <kyan@...eaurora.org> wrote:
> Hi Rob,
>
> I was trying the latest dtc as on Linux 4.12 for device tree overlay. On the
> latest kernel, I see the following commit:
>
> commit 6f05afcbb031722ec1eff77dde188ff2edf8940e ("scripts/dtc: Update to
> upstream version 0931cea3ba20")
>
> This seems to pull in various upstream dtc commits for dtc overlay
> including:
>
> commit 0cdd06c5135bd9f46853c2f58ad2ac91b0fa87f3 ("libfdt: Add overlay
> application function")
>
> The upstream commit introduces libfdt/fdt_overlay.c, but this file is not
> reflected in the kernel. Similar case is also seen for
> libfdt/fdt_addresses.c.

Indeed. The update-dtc-source.sh script has an explicit list of files to copy.

> Can you help confirm if these files should indeed have been pulled into the
> kernel and if anything else is missing from DTC side.

Yes, though the kernel doesn't need them so it doesn't matter too much.

Rob