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

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Message-ID: <CAK9=C2U7nRc95-DoxesfOzBBat8wNMhTqi4NTJWgJjQYd9NZow@mail.gmail.com>
Date:   Tue, 24 Oct 2023 17:37:16 +0530
From:   Anup Patel <apatel@...tanamicro.com>
To:     Björn Töpel <bjorn@...nel.org>
Cc:     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>,
        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, Atish Patra <atishp@...osinc.com>
Subject: Re: [PATCH v11 01/14] RISC-V: Don't fail in riscv_of_parent_hartid()
 for disabled HARTs

On Tue, Oct 24, 2023 at 5:25 PM Björn Töpel <bjorn@...nel.org> wrote:
>
> 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?

Yes, that is correct. In fact, PATCH2 can also be taken for Linux-6.7.

I suggest PATCH1 to PATCH3 (3 patches) be taken for Linux-6.7
since the merge window is pretty close.

Regards,
Anup