linux-kernel - Re: [PATCH v4 6/9] kbuild: consolidate Devicetree dtb build rules

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Message-ID: <CAK7LNAQAG1pAOMbnrFd5VbmUfcN5337tcGdeFrRo92rPWkVWAg@mail.gmail.com>
Date:   Tue, 2 Oct 2018 05:34:18 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Rob Herring <robh@...nel.org>
Cc:     DTML <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Vineet Gupta <vgupta@...opsys.com>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Michal Simek <monstr@...str.eu>,
        Ralf Baechle <ralf@...ux-mips.org>,
        James Hogan <jhogan@...nel.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        arcml <linux-snps-arc@...ts.infradead.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:H8/300 ARCHITECTURE" 
        <uclinux-h8-devel@...ts.sourceforge.jp>,
        Linux-MIPS <linux-mips@...ux-mips.org>,
        nios2-dev@...ts.rocketboards.org,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-xtensa@...ux-xtensa.org, Will Deacon <will.deacon@....com>,
        Paul Burton <paul.burton@...s.com>,
        Ley Foon Tan <ley.foon.tan@...el.com>
Subject: Re: [PATCH v4 6/9] kbuild: consolidate Devicetree dtb build rules

2018年10月2日(火) 0:26 Rob Herring <robh@...nel.org>:
>
> There is nothing arch specific about building dtb files other than their
> location under /arch/*/boot/dts/. Keeping each arch aligned is a pain.
> The dependencies and supported targets are all slightly different.
> Also, a cross-compiler for each arch is needed, but really the host
> compiler preprocessor is perfectly fine for building dtbs. Move the
> build rules to a common location and remove the arch specific ones. This
> is done in a single step to avoid warnings about overriding rules.
>
> The build dependencies had been a mixture of 'scripts' and/or 'prepare'.
> These pull in several dependencies some of which need a target compiler
> (specifically devicetable-offsets.h) and aren't needed to build dtbs.
> All that is really needed is dtc, so adjust the dependencies to only be
> dtc.
>
> This change enables support 'dtbs_install' on some arches which were
> missing the target.
>
> Acked-by: Will Deacon <will.deacon@....com>
> Acked-by: Paul Burton <paul.burton@...s.com>
> Acked-by: Ley Foon Tan <ley.foon.tan@...el.com>
> Cc: Masahiro Yamada <yamada.masahiro@...ionext.com>

Please change this to

Acked-by: Masahiro Yamada <yamada.masahiro@...ionext.com>


Thanks.


> Cc: Michal Marek <michal.lkml@...kovi.net>
> Cc: Vineet Gupta <vgupta@...opsys.com>
> Cc: Russell King <linux@...linux.org.uk>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Yoshinori Sato <ysato@...rs.sourceforge.jp>
> Cc: Michal Simek <monstr@...str.eu>
> Cc: Ralf Baechle <ralf@...ux-mips.org>
> Cc: James Hogan <jhogan@...nel.org>
> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: Michael Ellerman <mpe@...erman.id.au>
> Cc: Chris Zankel <chris@...kel.net>
> Cc: Max Filippov <jcmvbkbc@...il.com>
> Cc: linux-kbuild@...r.kernel.org
> Cc: linux-snps-arc@...ts.infradead.org
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: uclinux-h8-devel@...ts.sourceforge.jp
> Cc: linux-mips@...ux-mips.org
> Cc: nios2-dev@...ts.rocketboards.org
> Cc: linuxppc-dev@...ts.ozlabs.org
> Cc: linux-xtensa@...ux-xtensa.org
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
> v4:
>  - Make dtbs and %.dtb rules depend on arch/$ARCH/boot/dts path rather than
>    CONFIG_OF_EARLY_FLATTREE
>  - Fix install path missing kernel version for dtbs_install
>  - Fix "make CONFIG_OF_ALL_DTBS=y" for arches like ARM which selectively
>    enable CONFIG_OF (and therefore dtc)




-- 
Best Regards
Masahiro Yamada