linux-kernel - Re: [PATCH 1/3] MIPS: loongson64: Drop call to irq_cpu

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Message-ID: <4a6a136b-9bbd-5703-9c8f-95ab1b9d64ec@gmail.com>
Date:   Mon, 25 Oct 2021 19:16:20 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Marc Zyngier <maz@...nel.org>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Serge Semin <fancer.lancer@...il.com>,
        Huacai Chen <chenhuacai@...nel.org>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 1/3] MIPS: loongson64: Drop call to irq_cpu_offline()



On 10/21/2021 10:04 AM, Marc Zyngier wrote:
> Also loongson64 calls irq_cpu_offline(), none of its interrupt
> controllers implement the .irq_cpu_offline callback.
> 
> It is thus obvious that this call only serves the dubious purpose
> of wasting precious CPU cycles by iterating over all interrupts.
> 
> Get rid of the call altogether.
> 
> Signed-off-by: Marc Zyngier <maz@...nel.org>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
--
Florian