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Y. Srinivasan" , Len Brown , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, linux-snps-arc@lists.infradead.org, linux-tegra@vger.kernel.org, Russell King , Lorenzo Pieralisi , Marek Szyprowski , Hector Martin , Palmer Dabbelt , Paul Walmsley , "Rafael J. Wysocki" , Robert Moore , Rob Herring , Robin Murphy , Sudeep Holla , Suravee Suthikulpanit , Sven Peter , Thierry Reding , Thomas Bogendoerfer , Krishna Reddy , Vineet Gupta , virtualization@lists.linux-foundation.org, Wei Liu , Will Deacon Cc: Zhenhua Huang Subject: [PATCH RFC 09/17] iommu: Add iommu_fwspec_append_ids() Date: Fri, 3 Nov 2023 13:44:54 -0300 Message-ID: <9-v1-5f734af130a3+34f-iommu_fwspec_jgg@nvidia.com> In-Reply-To: <0-v1-5f734af130a3+34f-iommu_fwspec_jgg@nvidia.com> References: X-ClientProxiedBy: MN2PR15CA0063.namprd15.prod.outlook.com (2603:10b6:208:237::32) To LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV2PR12MB5869:EE_|CY8PR12MB7217:EE_ X-MS-Office365-Filtering-Correlation-Id: 695a2d30-ede1-4325-89a1-08dbdc8c607e X-LD-Processed: 43083d15-7273-40c1-b7db-39efd9ccc17a,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:LV2PR12MB5869.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(39860400002)(136003)(346002)(376002)(366004)(396003)(230922051799003)(64100799003)(186009)(1800799009)(451199024)(6506007)(6512007)(478600001)(6486002)(6666004)(2616005)(36756003)(86362001)(38100700002)(7406005)(41300700001)(2906002)(66476007)(7416002)(5660300002)(66946007)(83380400001)(26005)(316002)(66556008)(921008)(8676002)(110136005)(4326008)(8936002)(4216001);DIR:OUT;SFP:1101; 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Signed-off-by: Jason Gunthorpe Reviewed-by: Jerry Snitselaar --- drivers/iommu/iommu.c | 17 +++++++++++------ include/linux/iommu.h | 1 + 2 files changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index ad2963d69a0538..15dbe2d9eb24c2 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -3067,15 +3067,10 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, } EXPORT_SYMBOL_GPL(iommu_fwspec_init); - -int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids) +int iommu_fwspec_append_ids(struct iommu_fwspec *fwspec, u32 *ids, int num_ids) { - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); int i, new_num; - if (!fwspec) - return -EINVAL; - new_num = fwspec->num_ids + num_ids; if (new_num <= 1) { if (fwspec->ids != &fwspec->single_id) @@ -3097,6 +3092,16 @@ int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids) fwspec->num_ids = new_num; return 0; } +EXPORT_SYMBOL_GPL(iommu_fwspec_append_ids); + +int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids) +{ + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); + + if (!fwspec) + return -EINVAL; + return iommu_fwspec_append_ids(fwspec, ids, num_ids); +} EXPORT_SYMBOL_GPL(iommu_fwspec_add_ids); /* diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 2644c61b572b8f..c5a5e2b5e2cc2a 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -700,6 +700,7 @@ static inline void iommu_fwspec_free(struct device *dev) } int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids); const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode); +int iommu_fwspec_append_ids(struct iommu_fwspec *fwspec, u32 *ids, int num_ids); static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev) {