diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index abab245371ee..b12af2ff8c54 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -1907,6 +1907,15 @@ static void iommu_detach_dev(struct intel_iommu *iommu, u8 bus, u8 devfn) iommu->flush.flush_iotlb(iommu, 0, 0, 0, DMA_TLB_GLOBAL_FLUSH); } +static inline void unlink_domain_info(struct device_domain_info *info) +{ + assert_spin_locked(&device_domain_lock); + list_del(&info->link); + list_del(&info->global); + if (info->dev) + info->dev->dev.archdata.iommu = NULL; +} + static void domain_remove_dev_info(struct dmar_domain *domain) { struct device_domain_info *info; @@ -1917,10 +1926,7 @@ static void domain_remove_dev_info(struct dmar_domain *domain) while (!list_empty(&domain->devices)) { info = list_entry(domain->devices.next, struct device_domain_info, link); - list_del(&info->link); - list_del(&info->global); - if (info->dev) - info->dev->dev.archdata.iommu = NULL; + unlink_domain_info(info); spin_unlock_irqrestore(&device_domain_lock, flags); iommu_disable_dev_iotlb(info); @@ -2302,9 +2308,7 @@ static int domain_add_dev_info(struct dmar_domain *domain, ret = domain_context_mapping(domain, pdev, translation); if (ret) { spin_lock_irqsave(&device_domain_lock, flags); - list_del(&info->link); - list_del(&info->global); - pdev->dev.archdata.iommu = NULL; + unlink_domain_info(info); spin_unlock_irqrestore(&device_domain_lock, flags); free_devinfo_mem(info); return ret; @@ -3733,10 +3737,7 @@ static void domain_remove_one_dev_info(struct dmar_domain *domain, if (info->segment == pci_domain_nr(pdev->bus) && info->bus == pdev->bus->number && info->devfn == pdev->devfn) { - list_del(&info->link); - list_del(&info->global); - if (info->dev) - info->dev->dev.archdata.iommu = NULL; + unlink_domain_info(info); spin_unlock_irqrestore(&device_domain_lock, flags); iommu_disable_dev_iotlb(info); @@ -3791,11 +3792,7 @@ static void vm_domain_remove_all_dev_info(struct dmar_domain *domain) while (!list_empty(&domain->devices)) { info = list_entry(domain->devices.next, struct device_domain_info, link); - list_del(&info->link); - list_del(&info->global); - if (info->dev) - info->dev->dev.archdata.iommu = NULL; - + unlink_domain_info(info); spin_unlock_irqrestore(&device_domain_lock, flags1); iommu_disable_dev_iotlb(info); |