Message ID | 20220623200029.26007-3-nicolinc@nvidia.com |
---|---|
State | Superseded |
Headers | show
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Thu, 23 Jun 2022 20:01:36 +0000 Received: from rnnvmail204.nvidia.com (10.129.68.6) by rnnvmail204.nvidia.com (10.129.68.6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.26; Thu, 23 Jun 2022 13:01:35 -0700 Received: from Asurada-Nvidia.nvidia.com (10.127.8.10) by mail.nvidia.com (10.129.68.6) with Microsoft SMTP Server id 15.2.986.26 via Frontend Transport; Thu, 23 Jun 2022 13:01:33 -0700 From: Nicolin Chen <nicolinc@nvidia.com> To: <joro@8bytes.org>, <will@kernel.org>, <marcan@marcan.st>, <sven@svenpeter.dev>, <robin.murphy@arm.com>, <robdclark@gmail.com>, <baolu.lu@linux.intel.com>, <matthias.bgg@gmail.com>, <orsonzhai@gmail.com>, <baolin.wang7@gmail.com>, <zhang.lyra@gmail.com>, <jean-philippe@linaro.org>, <alex.williamson@redhat.com>, <jgg@nvidia.com>, <kevin.tian@intel.com> CC: <suravee.suthikulpanit@amd.com>, <alyssa@rosenzweig.io>, <dwmw2@infradead.org>, <yong.wu@mediatek.com>, <mjrosato@linux.ibm.com>, <gerald.schaefer@linux.ibm.com>, <thierry.reding@gmail.com>, <vdumpa@nvidia.com>, <jonathanh@nvidia.com>, <cohuck@redhat.com>, <thunder.leizhen@huawei.com>, <tglx@linutronix.de>, <chenxiang66@hisilicon.com>, <christophe.jaillet@wanadoo.fr>, <john.garry@huawei.com>, <yangyingliang@huawei.com>, <jordan@cosmicpenguin.net>, <iommu@lists.linux-foundation.org>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-arm-msm@vger.kernel.org>, <linux-mediatek@lists.infradead.org>, <linux-s390@vger.kernel.org>, <linux-tegra@vger.kernel.org>, <virtualization@lists.linux-foundation.org>, <kvm@vger.kernel.org> Subject: [PATCH v3 2/5] vfio/iommu_type1: Prefer to reuse domains vs match enforced cache coherency Date: Thu, 23 Jun 2022 13:00:26 -0700 Message-ID: <20220623200029.26007-3-nicolinc@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220623200029.26007-1-nicolinc@nvidia.com> References: <20220623200029.26007-1-nicolinc@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 75f04611-1fe9-4f3a-87e4-08da55532e48 X-MS-TrafficTypeDiagnostic: CH2PR12MB3813:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Series |
Simplify vfio_iommu_type1 attach/detach routine
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expand
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diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index c13b9290e357..f4e3b423a453 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -2285,9 +2285,7 @@ static int vfio_iommu_type1_attach_group(void *iommu_data, * testing if they're on the same bus_type. */ list_for_each_entry(d, &iommu->domain_list, next) { - if (d->domain->ops == domain->domain->ops && - d->enforce_cache_coherency == - domain->enforce_cache_coherency) { + if (d->domain->ops == domain->domain->ops) { iommu_detach_group(domain->domain, group->iommu_group); if (!iommu_attach_group(d->domain, group->iommu_group)) {