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From: Florian Fainelli <f.fainelli@gmail.com>
To: Rob Herring <robh+dt@kernel.org>,
	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>,
	Thomas Gleixner <tglx@linutronix.de>,
	Marc Zyngier <maz@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Ard Biesheuvel <ardb@kernel.org>, Mike Rapoport <rppt@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Arnd Bergmann <arnd@arndb.de>, Guenter Roeck <linux@roeck-us.net>,
	Kefeng Wang <wangkefeng.wang@huawei.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Andrey Konovalov <andreyknvl@gmail.com>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	Valentin Schneider <valentin.schneider@arm.com>,
	Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	"moderated list:ARM PORT" <linux-arm-kernel@lists.infradead.org>,
	"open list:SUPERH" <linux-sh@vger.kernel.org>,
	"open list:BROADCOM BMIPS MIPS ARCHITECTURE" 
	<linux-mips@vger.kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE" 
	<devicetree@vger.kernel.org>
Subject: Re: [PATCH 07/11] of/irq: Export of_irq_count to drivers
Date: Mon, 27 Sep 2021 12:49:46 -0700	[thread overview]
Message-ID: <ec13207a-08b4-cbc4-7f29-1ce25ce1ebd0@gmail.com> (raw)
In-Reply-To: <CAL_JsqLv+RrmtDPTuMxtjbqAbGvEeAY_oOE5GqrPdP9ZpNGzqw@mail.gmail.com>

On 9/27/21 12:43 PM, Rob Herring wrote:
> 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.

On ARM/ARM64 not using GKI as well as MIPS, we would want the module to
be built into the kernel image, however when using GKI that driver would
become a module. How do you suggest reconciling both usages?
-- 
Florian

  reply	other threads:[~2021-09-27 19:49 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-24 17:05 [PATCH 00/11] Modular Broadcom irqchip drivers Florian Fainelli
2021-09-24 17:05 ` [PATCH 01/11] arch: Export cpu_logical_map to modules Florian Fainelli
2021-09-27 19:32   ` Rob Herring
2021-09-27 19:43     ` Florian Fainelli
2021-09-24 17:05 ` [PATCH 02/11] genirq: Export irq_to_desc() again " Florian Fainelli
2021-09-25 21:00   ` Thomas Gleixner
2021-09-26  2:29     ` Florian Fainelli
2021-09-24 17:05 ` [PATCH 03/11] genirq: Export irq_set_affinity_locked() Florian Fainelli
2021-09-25 11:48   ` Marc Zyngier
2021-09-25 21:21     ` Thomas Gleixner
2021-09-25 21:37       ` Thomas Gleixner
2021-09-27 17:47         ` Florian Fainelli
2021-09-27 18:18           ` Thomas Gleixner
2021-09-27 18:25             ` Florian Fainelli
2021-09-24 17:05 ` [PATCH 04/11] irqchip/irq-bcm7038-l1: Switch to IRQCHIP_PLATFORM_DRIVER Florian Fainelli
2021-09-24 17:05 ` [PATCH 05/11] irqchip/irq-brcmstb-l2: " Florian Fainelli
2021-09-24 17:05 ` [PATCH 06/11] genirq: Export irq_gc_{unmask_enable,mask_disable}_reg Florian Fainelli
2021-09-26  2:30   ` Florian Fainelli
2021-09-24 17:05 ` [PATCH 07/11] of/irq: Export of_irq_count to drivers Florian Fainelli
2021-09-27 19:08   ` Rob Herring
2021-09-27 19:28     ` Florian Fainelli
2021-09-27 19:43       ` Rob Herring
2021-09-27 19:49         ` Florian Fainelli [this message]
2021-09-27 20:09           ` Rob Herring
2021-09-28  8:10           ` Marc Zyngier
2021-09-24 17:05 ` [PATCH 08/11] genirq: Export irq_gc_noop() Florian Fainelli
2021-09-24 17:05 ` [PATCH 09/11] irqchip/irq-bcm7120-l2: Switch to IRQCHIP_PLATFORM_DRIVER Florian Fainelli
2021-09-24 17:05 ` [PATCH 10/11] arm64: broadcom: Removed forced select of interrupt controllers Florian Fainelli
2021-09-25 12:09   ` Marc Zyngier
2021-09-25 17:46     ` Arnd Bergmann
2021-09-24 17:05 ` [PATCH 11/11] ARM: bcm: " Florian Fainelli

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