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Date:   Sun, 22 Jan 2023 12:54:48 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Yann Sionneau <ysionneau@...ray.eu>, Arnd Bergmann <arnd@...db.de>,
        Jonathan Corbet <corbet@....net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Will Deacon <will@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Eric Biederman <ebiederm@...ssion.com>,
        Kees Cook <keescook@...omium.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Ingo Molnar <mingo@...hat.com>,
        Waiman Long <longman@...hat.com>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nick Piggin <npiggin@...il.com>,
        Paul Moore <paul@...l-moore.com>,
        Eric Paris <eparis@...hat.com>,
        Christian Brauner <brauner@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Jules Maselbas <jmaselbas@...ray.eu>,
        Guillaume Thouvenin <gthouvenin@...ray.eu>,
        Clement Leger <clement@...ment-leger.fr>,
        Vincent Chardon <vincent.chardon@...ys-design.com>,
        Marc Poulhiès <dkm@...aplop.net>,
        Julian Vetter <jvetter@...ray.eu>,
        Samuel Jones <sjones@...ray.eu>,
        Ashley Lesdalons <alesdalons@...ray.eu>,
        Thomas Costis <tcostis@...ray.eu>,
        Marius Gligor <mgligor@...ray.eu>,
        Jonathan Borne <jborne@...ray.eu>,
        Julien Villette <jvillette@...ray.eu>,
        Luc Michel <lmichel@...ray.eu>,
        Louis Morhet <lmorhet@...ray.eu>,
        Julien Hascoet <jhascoet@...ray.eu>,
        Jean-Christophe Pince <jcpince@...il.com>,
        Guillaume Missonnier <gmissonnier@...ray.eu>,
        Alex Michon <amichon@...ray.eu>,
        Huacai Chen <chenhuacai@...nel.org>,
        WANG Xuerui <git@...0n.name>,
        Shaokun Zhang <zhangshaokun@...ilicon.com>,
        John Garry <john.garry@...wei.com>,
        Guangbin Huang <huangguangbin2@...wei.com>,
        Bharat Bhushan <bbhushan2@...vell.com>,
        Bibo Mao <maobibo@...ngson.cn>,
        Atish Patra <atishp@...shpatra.org>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        Qi Liu <liuqi115@...wei.com>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Mark Brown <broonie@...nel.org>,
        Janosch Frank <frankja@...ux.ibm.com>,
        Alexey Dobriyan <adobriyan@...il.com>
Cc:     Benjamin Mugnier <mugnier.benjamin@...il.com>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-mm@...ck.org,
        linux-arch@...r.kernel.org, linux-audit@...hat.com,
        linux-riscv@...ts.infradead.org, bpf@...r.kernel.org
Subject: Re: [RFC PATCH v2 31/31] kvx: Add IPI driver

On 20/01/2023 15:10, Yann Sionneau wrote:
> +
> +int __init kvx_ipi_ctrl_probe(irqreturn_t (*ipi_irq_handler)(int, void *))
> +{
> +	struct device_node *np;
> +	int ret;
> +	unsigned int ipi_irq;
> +	void __iomem *ipi_base;
> +
> +	np = of_find_compatible_node(NULL, NULL, "kalray,kvx-ipi-ctrl");

Nope, big no.

Drivers go to drivers, not to arch code. Use proper driver infrastructure.

Best regards,
Krzysztof

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