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Date:   Thu, 8 Sep 2022 07:38:59 -0700
From:   Daniel Walker <danielwa@cisco.com>
To:     Masahiro Yamada <masahiroy@kernel.org>
Cc:     Michal Marek <michal.lkml@markovi.net>,
        Nick Desaulniers <ndesaulniers@google.com>,
        xe-linux-external@cisco.com,
        Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [RFC-PATCH] Makefile: dts: include directory makefile for
 DTC_FLAGS
Message-ID: <20220908143859.GF4320@zorba>
References: <20220907230339.271633-1-danielwa@cisco.com>
 <CAK7LNAQSUkWz9hvEmB1wSCMJ0Do209QZOgAxO=oSK6HQa7XgTg@mail.gmail.com>
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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@cisco.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