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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: Joerg Roedel <jroedel@suse.de>
steinar/wifi_calib_4_9_kernel
Joerg Roedel 2015-07-23 17:44:46 +02:00
parent 2309bd793e
commit 127c761598
1 changed files with 16 additions and 19 deletions
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35
drivers/iommu/intel-iommu.c
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@ -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;
iommu = info->iommu;
if (info->dev) {
iommu_disable_dev_iotlb(info);
domain_context_clear(iommu, info->dev);
}
unlink_domain_info(info);
iommu_disable_dev_iotlb(info);
domain_context_clear(iommu, dev);
free_devinfo_mem(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);
}