linux-kernel - Re: [PATCH 1/5] MIPS: Introduce irq

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Date:   Tue, 6 Dec 2016 23:13:30 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Matt Redfearn <matt.redfearn@...tec.com>
Cc:     Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Chris Metcalf <cmetcalf@...lanox.com>,
        Petr Mladek <pmladek@...e.com>,
        LKML <linux-kernel@...r.kernel.org>,
        James Hogan <james.hogan@...tec.com>,
        Paul Burton <paul.burton@...tec.com>,
        Aaron Tomlin <atomlin@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 1/5] MIPS: Introduce irq_stack

On Fri, Dec 2, 2016 at 2:39 PM, Matt Redfearn <matt.redfearn@...tec.com> wrote:
> +void *irq_stack[NR_CPUS];

I'm curious why you implemented it this way rather than using
DEFINE_PER_CPU and the related percpu helper functions.