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iommu/vt-d: Use list_for_each_entry_safe() for dmar_domain->devices traversal

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Replace list_for_each_safe() + list_entry() with the simpler
list_for_each_entry_safe().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
This commit is contained in:
Yijing Wang
2013-10-31 17:26:04 +08:00
committed by Joerg Roedel
parent 8b161f0ee9
commit bca2b916f3
1 changed files with 2 additions and 4 deletions
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6
drivers/iommu/intel-iommu.c
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@@ -3781,11 +3781,10 @@ static void iommu_detach_dependent_devices(struct intel_iommu *iommu,
static void domain_remove_one_dev_info(struct dmar_domain *domain, static void domain_remove_one_dev_info(struct dmar_domain *domain,
struct pci_dev *pdev) struct pci_dev *pdev)
{ {
struct device_domain_info *info; struct device_domain_info *info, *tmp;
struct intel_iommu *iommu; struct intel_iommu *iommu;
unsigned long flags; unsigned long flags;
int found = 0; int found = 0;
struct list_head *entry, *tmp;
iommu = device_to_iommu(pci_domain_nr(pdev->bus), pdev->bus->number, iommu = device_to_iommu(pci_domain_nr(pdev->bus), pdev->bus->number,
pdev->devfn); pdev->devfn);
@@ -3793,8 +3792,7 @@ static void domain_remove_one_dev_info(struct dmar_domain *domain,
return; return;
spin_lock_irqsave(&device_domain_lock, flags); spin_lock_irqsave(&device_domain_lock, flags);
list_for_each_safe(entry, tmp, &domain->devices) { list_for_each_entry_safe(info, tmp, &domain->devices, link) {
info = list_entry(entry, struct device_domain_info, link);
if (info->segment == pci_domain_nr(pdev->bus) && if (info->segment == pci_domain_nr(pdev->bus) &&
info->bus == pdev->bus->number && info->bus == pdev->bus->number &&
info->devfn == pdev->devfn) { info->devfn == pdev->devfn) {