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From:   Masahiro Yamada <masahiroy@kernel.org>
Date:   Sat, 27 Jun 2020 21:02:52 +0900
Message-ID: <CAK7LNASRL6jaaxZreFK+iDmFHuw6QLSS0n08gZNkyhcsNunAnw@mail.gmail.com>
Subject: Re: [PATCH v2] kbuild: buildtar: add arm64 dtbs support
To:     Masahiro Yamada <masahiroy@kernel.org>,
        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>
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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:
> > >
> > > From: Domenico Andreoli <domenico.andreoli@linux.com>
> > >
> > > Make 'make tar-pkg' install dtbs on arm64.
> > >
> > > Signed-off-by: Domenico Andreoli <domenico.andreoli@linux.com>
> > >
> > > v2:
> > >  - Destination path includes the kernel version, as expected
> > >
> > > ---
> > >  scripts/package/buildtar |    9 +++++++++
> > >  1 file changed, 9 insertions(+)
> > >
> > > Index: b/scripts/package/buildtar
> > > ===================================================================
> > > --- a/scripts/package/buildtar
> > > +++ b/scripts/package/buildtar
> > > @@ -125,6 +125,15 @@ case "${ARCH}" in
> > >                 ;;
> > >  esac
> > >
> > > +#
> > > +# Install dtbs
> > > +#
> > > +case "${ARCH}" in
> >
> > Instead of checking ${ARCH},
> > can you you do
> >
> >      if grep -q '^CONFIG_OF_EARLY_FLATTREE=y' include/config/auto.conf; then
> >
> > ?
>
> Done in v3.
>
> >
> > This is what the deb package build does:
> > https://github.com/masahir0y/linux/blob/v5.7/scripts/package/builddeb#L145
> >
> >
> > > +       arm64)
> > > +               make ARCH="${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)


> > --
> > Best Regards
> > Masahiro Yamada
>
> Thank you for the review.
>
> Regards,
> Domenico
>
> --
> rsa4096: 3B10 0CA1 8674 ACBA B4FE  FCD2 CE5B CF17 9960 DE13
> ed25519: FFB4 0CC3 7F2E 091D F7DA  356E CC79 2832 ED38 CB05


-- 
Best Regards
Masahiro Yamada