From: Tina Zhang <tina.zhang@intel.com>
To: iommu@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: David Woodhouse <dwmw2@infradead.org>,
Lu Baolu <baolu.lu@linux.intel.com>,
Joerg Roedel <joro@8bytes.org>, Jason Gunthorpe <jgg@ziepe.ca>,
Kevin Tian <kevin.tian@intel.com>,
Tina Zhang <tina.zhang@intel.com>
Subject: [RFC PATCH 02/12] iommu/vt-d: Remove initialization for dynamically heap-allocated rcu_head
Date: Tue, 17 Oct 2023 11:20:34 +0800 [thread overview]
Message-ID: <20231017032045.114868-3-tina.zhang@intel.com> (raw)
In-Reply-To: <20231017032045.114868-1-tina.zhang@intel.com>
The rcu_head structures allocated dynamically in the heap don't need any
initialization. Therefore, remove the init_rcu_head().
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
---
drivers/iommu/intel/svm.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index 9bf79cf88aec..f9b1f13bd068 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -334,7 +334,6 @@ static int intel_svm_bind_mm(struct intel_iommu *iommu, struct device *dev,
sdev->iommu = iommu;
sdev->did = FLPT_DEFAULT_DID;
sdev->sid = PCI_DEVID(info->bus, info->devfn);
- init_rcu_head(&sdev->rcu);
if (info->ats_enabled) {
sdev->qdep = info->ats_qdep;
if (sdev->qdep >= QI_DEV_EIOTLB_MAX_INVS)
--
2.39.3
next prev parent reply other threads:[~2023-10-17 3:21 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-17 3:20 [RFC PATCH 00/12] iommu/vt-d: Remove superfluous IOMMU IOTLB invalidations Tina Zhang
2023-10-17 3:20 ` [RFC PATCH 01/12] iommu/vt-d: Retire the treatment for revoking PASIDs with pending pgfaults Tina Zhang
2023-10-17 3:20 ` Tina Zhang [this message]
2023-10-17 3:20 ` [RFC PATCH 03/12] iommu/vt-d: Retire intel_svm_bind_mm() Tina Zhang
2023-10-17 3:20 ` [RFC PATCH 04/12] iommu/vt-d: Make dev_to_intel_iommu() helper global Tina Zhang
2023-10-17 3:20 ` Tina Zhang
2023-10-17 3:20 ` [RFC PATCH 05/12] iommu/vt-d: Retire struct intel_svm_dev Tina Zhang
2023-10-17 3:20 ` [RFC PATCH 06/12] iommu: Add mmu_notifier to sva domain Tina Zhang
2023-10-23 18:35 ` Jason Gunthorpe
2023-11-01 11:58 ` Zhang, Tina
2023-10-17 3:20 ` [RFC PATCH 07/12] iommu/vt-d: Retire struct intel_svm Tina Zhang
2023-10-17 3:20 ` [RFC PATCH 08/12] iommu/vt-d: Use RCU for dev_pasids list updates in set/remove_dev_pasid() Tina Zhang
2023-10-17 3:20 ` [RFC PATCH 09/12] iommu/vt-d: Refactor intel_iommu_set_dev_pasid() Tina Zhang
2023-10-17 3:20 ` [RFC PATCH 10/12] iommu/vt-d: Refactor intel_iommu_remove_dev_pasid() Tina Zhang
2023-10-17 3:20 ` [RFC PATCH 11/12] iommu/vt-d: Use intel_iommu_set_dev_pasid() for sva domain Tina Zhang
2023-10-17 3:20 ` [RFC PATCH 12/12] iommu/vt-d: Remove superfluous IOMMU IOTLB invalidations Tina Zhang
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