From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7F34FCD343C for ; Wed, 12 Nov 2025 18:13:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:CC:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=/HchmBEL73/x0nkhHlnFKQS69bu+lLK3nviThBJ+BgQ=; b=WX/mjEWkAJneTcFyER26MNb8Oj sXKPNSUs+gY3oWCqckyaXypiLAOJXCZisQ/Tv0ul3D9M/VD82rgzmRBr3++XsecaKajBvftEC6Ve5 j6R4uooA7jxO/Kn9chmt9GjMaU0FCJDnnms0/cUGsnv2mG7QF6g/GQfi7O5rUo6Atex5TjjYRnWSR VQ0iSxeDx0GHey0GHuMsNuH2B0n47klsaBtXXjIKobUGNA5/QBjyb0ZJybBIr6sx0G7NmumFN09zM xwi2IRCOEupbXQrvaiC1Cx1stk528VTsXKLgPcTx2ZqdBhQ/5VmYXJ/3MWm8nLirkmsM6siQhDQkC BSOFpUwA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vJFLZ-00000009ImE-42tK; Wed, 12 Nov 2025 18:13:33 +0000 Received: from frasgout.his.huawei.com ([185.176.79.56]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vJFLX-00000009Ilc-1AKx for linux-arm-kernel@lists.infradead.org; Wed, 12 Nov 2025 18:13:32 +0000 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) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.203.177.15] X-ClientProxiedBy: lhrpeml500011.china.huawei.com (7.191.174.215) To dubpeml100005.china.huawei.com (7.214.146.113) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251112_101331_465449_A1F8BCCE X-CRM114-Status: GOOD ( 15.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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;