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From: Marc Zyngier <maz@kernel.org>
To: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-kernel@vger.kernel.org,
	Russell King <linux@armlinux.org.uk>, Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com (maintainer:BROADCOM
	BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE...),
	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>,
	Rob Herring <robh+dt@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>,
	linux-arm-kernel@lists.infradead.org (moderated list:ARM PORT),
	linux-sh@vger.kernel.org (open list:SUPERH),
	linux-mips@vger.kernel.org (open list:BROADCOM BMIPS MIPS
	ARCHITECTURE),
	devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
	FLATTENED DEVICE TREE)
Subject: Re: [PATCH 03/11] genirq: Export irq_set_affinity_locked()
Date: Sat, 25 Sep 2021 12:48:56 +0100	[thread overview]
Message-ID: <87tui8ub87.wl-maz@kernel.org> (raw)
In-Reply-To: <20210924170546.805663-4-f.fainelli@gmail.com>

On Fri, 24 Sep 2021 18:05:38 +0100,
Florian Fainelli <f.fainelli@gmail.com> wrote:
> 
> irq-bcm7038-l1 uses that symbol and we want to make it a loadable module
> in subsequent changes.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  kernel/irq/manage.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
> index 7405e384e5ed..e0c573e5d249 100644
> --- a/kernel/irq/manage.c
> +++ b/kernel/irq/manage.c
> @@ -369,6 +369,7 @@ int irq_set_affinity_locked(struct irq_data *data, const struct cpumask *mask,
>  
>  	return ret;
>  }
> +EXPORT_SYMBOL_GPL(irq_set_affinity_locked);
>  
>  /**
>   * irq_update_affinity_desc - Update affinity management for an interrupt

This doesn't seem right.

This driver seem to try and move interrupts on its own when the CPU
goes down. Why can't it rely on the normal CPU hotplug infrastructure
to do so like all the other drivers (bar some Cavium driver that does
the same thing)?

I'd rather you take this opportunity to move these drivers into the
21st century, so that we can kill irq_cpu_offline() and co altogether.

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.

  reply	other threads:[~2021-09-25 11:49 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 [this message]
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
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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