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Message-ID: <20511a05f39408c8ffbcc98923c4abd2@kernel.org>
Date:   Mon, 27 Jun 2022 08:11:46 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Samuel Holland <samuel@...lland.org>
Cc:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Prabhakar <prabhakar.csengg@...il.com>,
        Sagar Kadam <sagar.kadam@...ive.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        linux-renesas-soc@...r.kernel.org, Guo Ren <guoren@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Thomas Gleixner <tglx@...utronix.de>,
        Biju Das <biju.das.jz@...renesas.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v1 2/3] irqchip/sifive-plic: Name the chip more
 generically

On 2022-06-27 06:12, Samuel Holland wrote:
> The interface for SiFive's PLIC was adopted and clarified by RISC-V as
> the standard PLIC interface. Now that several PLIC implementations by
> different vendors share this same interface, it is somewhat misleading
> to report "SiFive PLIC" to userspace, when no SiFive hardware may be
> present. This is especially the case when some implementations are
> subtly incompatible with the binding and behavior of the SiFive PLIC,
> yet are similar enough to share a driver.

Too late. This is ABI, and not changing, exactly because userspace
sees it.

         M.
-- 
Jazz is not dead. It just smells funny...

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