linux-kernel - Re: [PATCH v11 01/14] RISC-V: Don't fail in riscv_of_parent

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Message-ID: <87h6mgs09f.fsf@all.your.base.are.belong.to.us>
Date:   Tue, 24 Oct 2023 13:55:24 +0200
From:   Björn Töpel <bjorn@...nel.org>
To:     Anup Patel <apatel@...tanamicro.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Frank Rowand <frowand.list@...il.com>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Marc Zyngier <maz@...nel.org>, Atish Patra <atishp@...shpatra.org>,
        Andrew Jones <ajones@...tanamicro.com>,
        Sunil V L <sunilvl@...tanamicro.com>,
        Saravana Kannan <saravanak@...gle.com>,
        Anup Patel <anup@...infault.org>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Anup Patel <apatel@...tanamicro.com>,
        Atish Patra <atishp@...osinc.com>
Subject: Re: [PATCH v11 01/14] RISC-V: Don't fail in
 riscv_of_parent_hartid() for disabled HARTs

Anup Patel <apatel@...tanamicro.com> writes:

> The riscv_of_processor_hartid() used by riscv_of_parent_hartid() fails
> for HARTs disabled in the DT. This results in the following warning
> thrown by the RISC-V INTC driver for the E-core on SiFive boards:
>
> [    0.000000] riscv-intc: unable to find hart id for /cpus/cpu@...nterrupt-controller
>
> The riscv_of_parent_hartid() is only expected to read the hartid from
> the DT so we should directly call of_get_cpu_hwid() instead of calling
> riscv_of_processor_hartid().
>
> Fixes: ad635e723e17 ("riscv: cpu: Add 64bit hartid support on RV64")

Patch 1 and 3: These fixes are stand alone, and doesn't have to be part
of the series.

Wouldn't it be better to pull these out of the long-going series, and
try to get in the fixes ASAP?


Björn