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Commit 127c7615 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/vt-d: Pass device_domain_info to __dmar_remove_one_dev_info 



This struct contains all necessary information for the
function already. Also handle the info->dev == NULL case
while at it.

Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 2309bd79

drivers/iommu/intel-iommu.c

+15 −18
Original line number Diff line number Diff line
@@ -473,10 +473,9 @@ static void domain_exit(struct dmar_domain *domain); 
static void domain_remove_dev_info(struct dmar_domain *domain);

static void dmar_remove_one_dev_info(struct dmar_domain *domain,

				     struct device *dev);

static void __dmar_remove_one_dev_info(struct device_domain_info *info);

static void domain_context_clear(struct intel_iommu *iommu,

				 struct device *dev);

static void __dmar_remove_one_dev_info(struct dmar_domain *domain,

				       struct device *dev);

static int domain_detach_iommu(struct dmar_domain *domain,

			       struct intel_iommu *iommu);
@@ -2216,7 +2215,7 @@ static void domain_remove_dev_info(struct dmar_domain *domain) 


	spin_lock_irqsave(&device_domain_lock, flags);

	list_for_each_entry_safe(info, tmp, &domain->devices, link)

		__dmar_remove_one_dev_info(domain, info->dev);

		__dmar_remove_one_dev_info(info);

	spin_unlock_irqrestore(&device_domain_lock, flags);

}
@@ -4538,43 +4537,41 @@ static void domain_context_clear(struct intel_iommu *iommu, struct device *dev) 
	pci_for_each_dma_alias(to_pci_dev(dev), &domain_context_clear_one_cb, iommu);

}



static void __dmar_remove_one_dev_info(struct dmar_domain *domain,

				       struct device *dev)

static void __dmar_remove_one_dev_info(struct device_domain_info *info)

{

	struct device_domain_info *info;

	struct intel_iommu *iommu;

	unsigned long flags;

	u8 bus, devfn;



	assert_spin_locked(&device_domain_lock);



	iommu = device_to_iommu(dev, &bus, &devfn);

	if (!iommu)

		return;



	info = dev->archdata.iommu;



	if (WARN_ON(!info))

		return;



	unlink_domain_info(info);

	iommu = info->iommu;



	if (info->dev) {

		iommu_disable_dev_iotlb(info);

	domain_context_clear(iommu, dev);

	free_devinfo_mem(info);

		domain_context_clear(iommu, info->dev);

	}



	unlink_domain_info(info);



	spin_lock_irqsave(&iommu->lock, flags);

	domain_detach_iommu(domain, iommu);

	domain_detach_iommu(info->domain, iommu);

	spin_unlock_irqrestore(&iommu->lock, flags);



	free_devinfo_mem(info);

}



static void dmar_remove_one_dev_info(struct dmar_domain *domain,

				     struct device *dev)

{

	struct device_domain_info *info;

	unsigned long flags;



	spin_lock_irqsave(&device_domain_lock, flags);

	__dmar_remove_one_dev_info(domain, dev);

	info = dev->archdata.iommu;

	__dmar_remove_one_dev_info(info);

	spin_unlock_irqrestore(&device_domain_lock, flags);

}