linux-kernel - [PATCH 5/8] iommu/vt-d: Remove initialization for dynamically heap-allocated rcu

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Message-Id: <20240227021441.50434-6-baolu.lu@linux.intel.com>
Date: Tue, 27 Feb 2024 10:14:38 +0800
From: Lu Baolu <baolu.lu@...ux.intel.com>
To: Joerg Roedel <joro@...tes.org>
Cc: Tina Zhang <tina.zhang@...el.com>,
	Erick Archer <erick.archer@....com>,
	Jingqi Liu <Jingqi.liu@...el.com>,
	iommu@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH 5/8] iommu/vt-d: Remove initialization for dynamically heap-allocated rcu_head

From: Tina Zhang <tina.zhang@...el.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@...el.com>
Link: https://lore.kernel.org/r/20240219125723.1645703-3-tina.zhang@intel.com
Signed-off-by: Lu Baolu <baolu.lu@...ux.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 a815362c8e60..a92a9e2239e2 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -360,7 +360,6 @@ 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)
-- 
2.34.1