linux-kernel - Re: [PATCH v2 01/11] RISC-V: Define helper functions expose hpm counter width and count

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Message-ID: <CAOnJCU+UBG-AouAc1M4J-i9Y_nPE9RfrFZfNyLSxhKbNF55AMQ@mail.gmail.com>
Date:   Tue, 24 Jan 2023 12:41:33 -0800
From:   Atish Patra <atishp@...shpatra.org>
To:     Andrew Jones <ajones@...tanamicro.com>
Cc:     Atish Kumar Patra <atishp@...osinc.com>,
        linux-kernel@...r.kernel.org, Anup Patel <anup@...infault.org>,
        Guo Ren <guoren@...nel.org>, kvm-riscv@...ts.infradead.org,
        kvm@...r.kernel.org, linux-riscv@...ts.infradead.org,
        Mark Rutland <mark.rutland@....com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Sergey Matyukevich <sergey.matyukevich@...tacore.com>,
        Eric Lin <eric.lin@...ive.com>, Will Deacon <will@...nel.org>
Subject: Re: [PATCH v2 01/11] RISC-V: Define helper functions expose hpm
 counter width and count

On Thu, Jan 12, 2023 at 11:22 PM Andrew Jones <ajones@...tanamicro.com> wrote:
>
> On Thu, Jan 12, 2023 at 10:18:05AM -0800, Atish Kumar Patra wrote:
> > On Thu, Jan 12, 2023 at 2:06 AM Andrew Jones <ajones@...tanamicro.com> wrote:
> > >
> > > On Thu, Dec 15, 2022 at 09:00:36AM -0800, Atish Patra wrote:
> ...
> > > > +EXPORT_SYMBOL(riscv_pmu_get_hpm_info);
> > >
> > > EXPORT_SYMBOL_GPL ?
> > >
> >
> > Is that mandatory ? I have seen usage of both in arch/riscv and other
> > places though.
> > I am also not sure if any other non-GPL module should/need access to this.
>
> TBH, I'm not sure what the best policy is, but I presumed we should use
> _GPL when we aren't aware of anything non-GPL and then when a day comes
> that something non-GPL would like this to be exported, the patch that
> flips it will provide the justification in its commit message.
>

Sgtm. Changed it to EXPORT_SYMBOL_GPL for now.

> Thanks,
> drew



-- 
Regards,
Atish