linux-kernel - Re: [PATCH 07/11] of/irq: Export of_irq

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Date:   Mon, 27 Sep 2021 12:28:28 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Russell King <linux@...linux.org.uk>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        "maintainer:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE..." 
        <bcm-kernel-feedback-list@...adcom.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Mike Rapoport <rppt@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Arnd Bergmann <arnd@...db.de>,
        Guenter Roeck <linux@...ck-us.net>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Mark Rutland <mark.rutland@....com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Valentin Schneider <valentin.schneider@....com>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "moderated list:ARM PORT" <linux-arm-kernel@...ts.infradead.org>,
        "open list:SUPERH" <linux-sh@...r.kernel.org>,
        "open list:BROADCOM BMIPS MIPS ARCHITECTURE" 
        <linux-mips@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE" 
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH 07/11] of/irq: Export of_irq_count to drivers

On 9/27/21 12:08 PM, Rob Herring wrote:
> On Fri, Sep 24, 2021 at 12:07 PM Florian Fainelli <f.fainelli@...il.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@...il.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?
-- 
Florian