linux-sh.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Thomas Gleixner <tglx@linutronix.de>
To: Marc Zyngier <maz@kernel.org>, 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>,
	"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>, 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>,
	"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 03/11] genirq: Export irq_set_affinity_locked()
Date: Sat, 25 Sep 2021 23:37:28 +0200	[thread overview]
Message-ID: <87r1dccp5z.ffs@tglx> (raw)
In-Reply-To: <87tui8cpwd.ffs@tglx>

On Sat, Sep 25 2021 at 23:21, Thomas Gleixner wrote:

> On Sat, Sep 25 2021 at 12:48, Marc Zyngier wrote:
>> On Fri, 24 Sep 2021 18:05:38 +0100, Florian Fainelli <f.fainelli@gmail.com> wrote:
>>>  }
>>> +EXPORT_SYMBOL_GPL(irq_set_affinity_locked);
>>
>> 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.
>
> I wanted to kill these callbacks years ago. Cavium has two variants of
> those offline/online callbacks:
>
>  1) octeon_irq_cpu_offline_ciu() which is doing the same as that BCM
>     driver. These really can go away. Just remove the callback and
>     everything just works.

For BCM this works today when that chip is used on ARM[64] simply
because the only architecture which invokes irq_cpu_offline() is MIPS.

Thanks,

        tglx

  reply	other threads:[~2021-09-25 21:37 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 [this message]
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87r1dccp5z.ffs@tglx \
    --to=tglx@linutronix.de \
    --cc=akpm@linux-foundation.org \
    --cc=andreyknvl@gmail.com \
    --cc=anshuman.khandual@arm.com \
    --cc=ardb@kernel.org \
    --cc=arnd@arndb.de \
    --cc=bcm-kernel-feedback-list@broadcom.com \
    --cc=catalin.marinas@arm.com \
    --cc=dalias@libc.org \
    --cc=devicetree@vger.kernel.org \
    --cc=f.fainelli@gmail.com \
    --cc=frowand.list@gmail.com \
    --cc=geert+renesas@glider.be \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mips@vger.kernel.org \
    --cc=linux-sh@vger.kernel.org \
    --cc=linux@armlinux.org.uk \
    --cc=linux@roeck-us.net \
    --cc=mark.rutland@arm.com \
    --cc=maz@kernel.org \
    --cc=mingo@kernel.org \
    --cc=peterz@infradead.org \
    --cc=rjui@broadcom.com \
    --cc=robh+dt@kernel.org \
    --cc=rppt@kernel.org \
    --cc=sbranden@broadcom.com \
    --cc=valentin.schneider@arm.com \
    --cc=wangkefeng.wang@huawei.com \
    --cc=will@kernel.org \
    --cc=ysato@users.sourceforge.jp \
    --subject='Re: [PATCH 03/11] genirq: Export irq_set_affinity_locked()' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).