linux-kernel - Re: [RFC-PATCH] Makefile: dts: include directory makefile for DTC

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Date:   Fri, 9 Sep 2022 00:01:30 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Daniel Walker <danielwa@...co.com>
Cc:     Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        xe-linux-external@...co.com,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC-PATCH] Makefile: dts: include directory makefile for DTC_FLAGS

On Thu, Sep 8, 2022 at 11:39 PM Daniel Walker <danielwa@...co.com> wrote:
>
> On Thu, Sep 08, 2022 at 04:08:06PM +0900, Masahiro Yamada wrote:
> > On Thu, Sep 8, 2022 at 8:03 AM Daniel Walker <danielwa@...co.com> wrote:
> > >
> > > The current Makefile will drop the DTC_FLAGS depending on how you
> > > build. For example,
> > >
> > > make dtbs
> > >
> > > includes correct DTC_FLAGS. However if you run,
> > >
> > > make nvidia/tegra210-p2371-2180.dtb
> > >
> > > The DTC_FLAGS are dropped. This appears to be caused by the top level
> > > Makefile not including the Makefile from the directory where the dts lives.
> > >
> > > This normally doesn't matter because most dts files have nothing added
> > > from the Makefile. This changes when you have overlays, and the
> > > DTC_FLAGS modifier is mandatory for the dtb to work correctly.
> >
> >
> > I recently fixed another issue of single target builds.
> > https://patchwork.kernel.org/project/linux-kbuild/patch/20220906061313.1445810-2-masahiroy@kernel.org/
> >
> >
> > It fixed your issue as well.
> >
> >
>
> Yeah, it fixes the issue I was seeing. Are you planning to resubmit this or is
> the v2 the final version ?
>
> Daniel


I do not have a plan to submit v3
(unless a new issue comes up)



-- 
Best Regards
Masahiro Yamada