Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
MIME-Version: 1.0
References: <1546595897-33291-1-git-send-email-clabbe@baylibre.com>
In-Reply-To: <1546595897-33291-1-git-send-email-clabbe@baylibre.com>
From:   Rob Herring <robh+dt@kernel.org>
Date:   Fri, 4 Jan 2019 11:46:47 -0600
Message-ID: <CAL_Jsq+Wo7kWTHg6f+HkTfq1=JN8r4iBrwSz9JRdJ0rhjyKSpg@mail.gmail.com>
Subject: Re: [PATCH] powerpc: build dtb even without COMPILE_TEST
To:     Corentin Labbe <clabbe@baylibre.com>
Cc:     Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Paul Mackerras <paulus@samba.org>, devicetree@vger.kernel.org,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Fri, Jan 4, 2019 at 3:58 AM Corentin Labbe <clabbe@baylibre.com> wrote:
>
> I wanted to test the virtex440-ml507 qemu machine and found that the dtb
> for it was not builded.

Just do:

make virtex440-ml507.dtb

> All powerpc DTB are only built when CONFIG_OF_ALL_DTBS is set which depend on
> COMPILE_TEST.
> But building DTB is not related to a "compile build test".

But it is. We normally only build the dtbs for enabled platforms just
like we only build platform/driver code for enabled platforms. It's
hidden behind COMPILE_TEST so it only gets enabled for
allmodconfig/allyesconfig builds.

> So this patch made building of DTB independent of COMPILE_TEST (by
> depending only on the PPC arch)
> A better selection of which DTB to build could be done in the future
> like that do the ARM arch.

No reason you can't start that now for the platform you care about.
You don't have to convert everyone.

Rob