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iommu/vt-d: Remove finding domain in dmar_insert_one_dev_info()

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The Intel IOMMU driver has already converted to use default domain
framework in iommu core. There's no need to find a domain for the
device in the domain attaching path. Cleanup that code.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20220214025704.3184654-1-baolu.lu@linux.intel.com
Link: https://lore.kernel.org/r/20220301020159.633356-3-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Lu Baolu 2022-03-01 10:01:49 +08:00 committed by Joerg Roedel
parent 402e6688a7
commit c5d27545fb
1 changed files with 0 additions and 21 deletions
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21
drivers/iommu/intel/iommu.c
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@ -2554,7 +2554,6 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu,
struct device *dev,
struct dmar_domain *domain)
{
struct dmar_domain *found = NULL;
struct device_domain_info *info;
unsigned long flags;
int ret;
@ -2605,26 +2604,6 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu,
}
spin_lock_irqsave(&device_domain_lock, flags);
if (dev)
found = find_domain(dev);
if (!found) {
struct device_domain_info *info2;
info2 = dmar_search_domain_by_dev_info(info->segment, info->bus,
info->devfn);
if (info2) {
found = info2->domain;
info2->dev = dev;
}
}
if (found) {
spin_unlock_irqrestore(&device_domain_lock, flags);
free_devinfo_mem(info);
/* Caller must free the original domain */
return found;
}
spin_lock(&iommu->lock);
ret = domain_attach_iommu(domain, iommu);
spin_unlock(&iommu->lock);