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iommu/vt-d: Unwrap __get_valid_domain_for_dev() 

We do find_domain() in __get_valid_domain_for_dev(), while we do the
same thing in get_valid_domain_for_dev().  No need to do it twice.

Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Peter Xu 2017-05-22 18:28:51 +08:00 committed by Joerg Roedel
parent 15060aba71
commit b316d02a13
1 changed files with 2 additions and 14 deletions
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16
drivers/iommu/intel-iommu.c
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@ -2387,7 +2387,7 @@ static struct dmar_domain *find_domain(struct device *dev)
/* No lock here, assumes no domain exit in normal case */
info = dev->archdata.iommu;
if (info)
if (likely(info))
return info->domain;
return NULL;
}
@ -3475,7 +3475,7 @@ static unsigned long intel_alloc_iova(struct device *dev,
return iova_pfn;
}
static struct dmar_domain *__get_valid_domain_for_dev(struct device *dev)
static struct dmar_domain *get_valid_domain_for_dev(struct device *dev)
{
struct dmar_domain *domain, *tmp;
struct dmar_rmrr_unit *rmrr;
@ -3522,18 +3522,6 @@ out:
return domain;
}
static inline struct dmar_domain *get_valid_domain_for_dev(struct device *dev)
{
struct device_domain_info *info;
/* No lock here, assumes no domain exit in normal case */
info = dev->archdata.iommu;
if (likely(info))
return info->domain;
return __get_valid_domain_for_dev(dev);
}
/* Check if the dev needs to go through non-identity map and unmap process.*/
static int iommu_no_mapping(struct device *dev)
{