Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Sun, 28 Jun 2020 19:46:06 +0200
From:   Domenico Andreoli <domenico.andreoli@linux.com>
To:     Masahiro Yamada <masahiroy@kernel.org>
Cc:     Michal Marek <michal.lkml@markovi.net>,
        Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Olof Johansson <olof@lixom.net>,
        Will Deacon <will.deacon@arm.com>,
        Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [PATCH v2] kbuild: buildtar: add arm64 dtbs support
Message-ID: <20200628174606.GA19923@dumbo>
References: <5ef50e52.1c69fb81.b6cbd.bd8e@mx.google.com>
 <CAK7LNASta=UfbK-C=6R+tT2nug8_MYyr9515J4CN8odWCh0CpA@mail.gmail.com>
 <20200626214026.GB25753@dumbo>
 <CAK7LNASRL6jaaxZreFK+iDmFHuw6QLSS0n08gZNkyhcsNunAnw@mail.gmail.com>
 <20200627212112.GA18721@dumbo>
 <CAK7LNARhsyo0OoS+fibCn3tt4J7_iwfsSn8TvzjxZ4K_bwreUA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAK7LNARhsyo0OoS+fibCn3tt4J7_iwfsSn8TvzjxZ4K_bwreUA@mail.gmail.com>
User-Agent: Mutt/1.10.1 (2018-07-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Sun, Jun 28, 2020 at 12:46:28PM +0900, Masahiro Yamada wrote:
> On Sun, Jun 28, 2020 at 6:21 AM Domenico Andreoli
> <domenico.andreoli@linux.com> wrote:
> >
> > On Sat, Jun 27, 2020 at 09:02:52PM +0900, Masahiro Yamada wrote:
> > > On Sat, Jun 27, 2020 at 6:40 AM Domenico Andreoli <domenico.andreoli@linux.com> wrote:
> > > > On Fri, Jun 26, 2020 at 03:16:58PM +0900, Masahiro Yamada wrote:
> > > > > On Fri, Jun 26, 2020 at 5:51 AM Domenico Andreoli <domenico.andreoli@linux.com> wrote:
> >
> > [...]
> >
> > > > > >
> > > > > > +       arm64)
> > > > > > +               make ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_DTBS_PATH="${tmpdir}/boot/dtbs/${KERNELRELEASE}" dtbs_install
> > > > > > +               ;;
> > > > > > +esac
> > > > > > +
> > > > >
> > > > >
> > > > > Or, you can use INSTALL_PATH="${tmpdir}/boot"
> > > > > to make it shorter.
> > > >
> > > > This does not work, INSTALL_DTBS_PATH gets somehow defined along the
> > > > twisted path to buildtar and therefore needs to be explicitly specified
> > > > for the new destination.
> > >
> > > It works.
> > >
> > > See line 1002 of the top Makefile
> > >
> > > export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE)
> >
> > Exactly. INSTALL_DTBS_PATH is _exported_ in the top Makefile.
> >
> >
> > This is what it seems to happen, in the order:
> >
> > 1. outer 'make dir-pkg'
> >    INSTALL_DTBS_PATH is exported with some content
> >
> > 2. control arrives to buildtar
> >    INSTALL_DTBS_PATH is there as environment variable
> >
> > 3. inner 'make INSTALL_PATH=${tmpdir}/boot dtbs_install'
> >    INSTALL_DTBS_PATH is already set, therefore it is not modified
> 
> Sorry, I was wrong.
> Your analysis is definitely right.
> 
> 
> I will apply v4.
> 
> Thanks.
> 

Thanks to you!

Domenico

-- 
rsa4096: 3B10 0CA1 8674 ACBA B4FE  FCD2 CE5B CF17 9960 DE13
ed25519: FFB4 0CC3 7F2E 091D F7DA  356E CC79 2832 ED38 CB05