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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64DD3C433FE for ; Fri, 11 Nov 2022 14:05:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234164AbiKKOFa (ORCPT ); Fri, 11 Nov 2022 09:05:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234226AbiKKOFE (ORCPT ); Fri, 11 Nov 2022 09:05:04 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6A2889FB6; Fri, 11 Nov 2022 05:59:04 -0800 (PST) Message-ID: <20221111135205.486390836@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1668175098; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=wvq/UAWBnWLIn373I3iZtaQ+G1F0GV+IlK6QQPaFqcU=; b=Oi5Fm2esocx23HpZQOPMAz84HbKkki4TfiPD2o+PYIJeY+Q3tFA9Ao+RfshJWWoNuc+u83 bKF5cP8o156ZnFlGZkUhlEUrC9Y4fZESVghFE6K/Cnny8Cy34pBdT0U96HrURFPZaAkUdC KzJkWiwshMmaxz8rSSvZMvJ4GmZld0YC6orJF+DI5Ysvov4AhNEKvAom8RVUMUtdRdKewQ c95eHw09X2ramu0QIwfUTXmwbzokyWT3IA44aD9+mt25iUbhmGcHVyhC+6Ed1PedgbU1/g TY12GFZoi3OhRO6QqmPnmREhT1shvepahKntwBqgjuOfgp98yC+K+Uc+0sv/hw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1668175098; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=wvq/UAWBnWLIn373I3iZtaQ+G1F0GV+IlK6QQPaFqcU=; b=L0f1/AJbwQ15elJ92Io5gqA0ZWGqy0dco6cbPo5Pk3o4px+alA0hfzKHSG4K/nGQJDbBtL UExpj31mr8BvYLDw== From: Thomas Gleixner To: LKML Cc: x86@kernel.org, Joerg Roedel , Will Deacon , linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Marc Zyngier , Greg Kroah-Hartman , Jason Gunthorpe , Dave Jiang , Alex Williamson , Kevin Tian , Dan Williams , Logan Gunthorpe , Ashok Raj , Jon Mason , Allen Hubbe , "Ahmed S. Darwish" , Reinette Chatre Subject: [patch 04/33] genirq/msi: Add size info to struct msi_domain_info References: <20221111133158.196269823@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Date: Fri, 11 Nov 2022 14:58:17 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To allow proper range checking especially for dynamic allocations add a size field to struct msi_domain_info. If the field is 0 then the size is unknown or unlimited (up to MSI_MAX_INDEX) to provide backwards compability. Signed-off-by: Thomas Gleixner --- include/linux/msi.h | 2 ++ 1 file changed, 2 insertions(+) --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -410,6 +410,7 @@ struct msi_domain_ops { * struct msi_domain_info - MSI interrupt domain data * @flags: Flags to decribe features and capabilities * @bus_token: The domain bus token + * @hwsize: The hardware table size (0 if unknown/unlimited) * @ops: The callback data structure * @chip: Optional: associated interrupt chip * @chip_data: Optional: associated interrupt chip data @@ -421,6 +422,7 @@ struct msi_domain_ops { struct msi_domain_info { u32 flags; enum irq_domain_bus_token bus_token; + unsigned int hwsize; struct msi_domain_ops *ops; struct irq_chip *chip; void *chip_data;