From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 92D0E34575A; Wed, 12 Nov 2025 18:13:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762971205; cv=none; b=kSSK+j2yyoYcwqr5UNqmPy99GGfjtm9kwWTw/mq0A4mNiN5hnw8chefilLLuEJ7YORIl4acNJuw37JYbj1NSrAxaSmOm5m+IJIBUQ47sQ1zvDhiD2eI5Sz8BQ/8OFS44RcizROr7RIY1v7j0sJQpLReefZL8dM/NzcwjtraJp/I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762971205; c=relaxed/simple; bh=/1PJ1i8JUkAb12Mt1GVCayhNAx3IxRmlR4TZVdJPJEE=; h=Date:From:To:CC:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=TE90o3pj2qFuoWDcZ9sI2hfVTEPKnZul+ThG/kO3i4ji4jEQIplsR5oyOVONtsYHfO5J0oN5/CQr7GUAIr/HSd3swczAbWsW8L6YtJSW8MrRkFysxmDB8nS5ZpJ1i3xlqIw/+ohGTr/bwauwPsSfeZHEdy+9rcByZ3xx79ZzegU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.186.31]) by frasgout.his.huawei.com (SkyGuard) with ESMTPS id 4d6BMg65WmzJ46bC; Thu, 13 Nov 2025 02:12:47 +0800 (CST) Received: from dubpeml100005.china.huawei.com (unknown [7.214.146.113]) by mail.maildlp.com (Postfix) with ESMTPS id ADCDA1400D9; Thu, 13 Nov 2025 02:13:20 +0800 (CST) Received: from localhost (10.203.177.15) by dubpeml100005.china.huawei.com (7.214.146.113) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.36; Wed, 12 Nov 2025 18:13:19 +0000 Date: Wed, 12 Nov 2025 18:13:18 +0000 From: Jonathan Cameron To: Marc Zyngier CC: , , , Thomas Gleixner , "Mark Rutland" , Will Deacon , "Rafael J. Wysocki" , Rob Herring , "Saravana Kannan" , Greg Kroah-Hartman , Sven Peter , Janne Grunau , Suzuki K Poulose , James Clark , Jinjie Ruan , "Alexandru Elisei" Subject: Re: [PATCH v4 14/26] genirq: Add affinity to percpu_devid interrupt requests Message-ID: <20251112181318.000064be@huawei.com> In-Reply-To: <20251020122944.3074811-15-maz@kernel.org> References: <20251020122944.3074811-1-maz@kernel.org> <20251020122944.3074811-15-maz@kernel.org> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: lhrpeml500011.china.huawei.com (7.191.174.215) To dubpeml100005.china.huawei.com (7.214.146.113) On Mon, 20 Oct 2025 13:29:31 +0100 Marc Zyngier wrote: > Add an affinity field to both the irqaction structure and the interrupt > request primitives. Nothing is making use of it yet, and the only value > used it NULL, which is used as a shorthand for cpu_possible_mask. used is NULL > > This will shortly get used with actual affinities. > > Tested-by: Will Deacon > Signed-off-by: Marc Zyngier With trivial bit of documentation added Reviewed-by: Jonathan Cameron > --- > include/linux/interrupt.h | 5 +++-- > kernel/irq/manage.c | 14 ++++++++++---- > 2 files changed, 13 insertions(+), 6 deletions(-) > > diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h > index 0ec1a71ab4e84..52147d5f432b3 100644 > --- a/include/linux/interrupt.h > +++ b/include/linux/interrupt.h > @@ -125,6 +125,7 @@ struct irqaction { > void *dev_id; > void __percpu *percpu_dev_id; > }; > + const struct cpumask *affinity; This structure has kernel-doc that needs an update. > struct irqaction *next; > irq_handler_t thread_fn; > struct task_struct *thread;