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Date:   Tue, 28 Sep 2021 12:58:56 +0100
From:   Mark Brown <broonie@kernel.org>
To:     Arnd Bergmann <arnd@kernel.org>
Cc:     Bjorn Andersson <bjorn.andersson@linaro.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Charles Keepax <ckeepax@opensource.cirrus.com>,
        Simon Trimmer <simont@opensource.cirrus.com>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
        Helge Deller <deller@gmx.de>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Linus Walleij <linus.walleij@linaro.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org,
        linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: Re: [PATCH 1/2] firmware: include drivers/firmware/Kconfig
 unconditionally
Message-ID: <20210928115856.GK4199@sirena.org.uk>
References: <20210928075216.4193128-1-arnd@kernel.org>
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On Tue, Sep 28, 2021 at 09:50:26AM +0200, Arnd Bergmann wrote:

> Compile-testing drivers that require access to a firmware layer
> fails when that firmware symbol is unavailable. This happened
> twice this week:

...

> We should probably do the same thing for other subsystems as well,
> but fix this one first as this is a dependency for other patches
> getting merged.

Reviwed-by: Mark Brown <broonie@kernel.org>

Regardless of what we do with the Cirrus DSP this just seems like a good
idea - surprises due to this not being generally available keep coming
up, IIRC with the i.MX firmware in the past for example.

> Not sure how we'd want to merge this patch, if two other things
> need it. I'd prefer to merge it along with the QCOM_SCM change
> through the soc tree, but that leaves the cirrus firmware broken
> unless we also merge it the same way (rather than through ASoC
> as it is now).

We could also merge a tag into both places.

> Alternatively, we can try to find a different home for the Cirrus
> firmware to decouple the two problems. I'd argue that it's actually
> misplaced here, as drivers/firmware is meant for kernel code that
> interfaces with system firmware, not for device drivers to load
> their own firmware blobs from user space.

Trying to enforce distinctions here feels like it's liable to lead to
trouble at some point...

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