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From:   Rob Herring <robh+dt@kernel.org>
Date:   Mon, 27 Sep 2021 14:43:47 -0500
Message-ID: <CAL_JsqLv+RrmtDPTuMxtjbqAbGvEeAY_oOE5GqrPdP9ZpNGzqw@mail.gmail.com>
Subject: Re: [PATCH 07/11] of/irq: Export of_irq_count to drivers
To:     Florian Fainelli <f.fainelli@gmail.com>
Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Russell King <linux@armlinux.org.uk>,
        Ray Jui <rjui@broadcom.com>,
        Scott Branden <sbranden@broadcom.com>,
        "maintainer:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE..." 
        <bcm-kernel-feedback-list@broadcom.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Rich Felker <dalias@libc.org>,
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        Frank Rowand <frowand.list@gmail.com>,
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        Mike Rapoport <rppt@kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Andrew Morton <akpm@linux-foundation.org>,
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        Arnd Bergmann <arnd@arndb.de>,
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        Kefeng Wang <wangkefeng.wang@huawei.com>,
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        Andrey Konovalov <andreyknvl@gmail.com>,
        Anshuman Khandual <anshuman.khandual@arm.com>,
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On Mon, Sep 27, 2021 at 2:28 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
>
> On 9/27/21 12:08 PM, Rob Herring wrote:
> > On Fri, Sep 24, 2021 at 12:07 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
> >>
> >> In order to build drivers/irqchip/irq-bcm7120-l2.c as a module, we will
> >> need to have of_irq_count() exported to modules.
> >>
> >> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> >> ---
> >>  drivers/of/irq.c | 1 +
> >>  1 file changed, 1 insertion(+)
> >>
> >> diff --git a/drivers/of/irq.c b/drivers/of/irq.c
> >> index 352e14b007e7..949b9d1f8729 100644
> >> --- a/drivers/of/irq.c
> >> +++ b/drivers/of/irq.c
> >> @@ -440,6 +440,7 @@ int of_irq_count(struct device_node *dev)
> >>
> >>         return nr;
> >>  }
> >> +EXPORT_SYMBOL_GPL(of_irq_count);
> >
> > Please convert to use platform_irq_count() instead.
>
> That requires a platform_device to be passed to platform_irq_count(),
> will that work even when the drivers remain built into the kernel and
> get initialized early on?

No, does your irqchip using this do both? Looks to me like it is
always a platform_device.

Rob