diff options
| author | Yijing Wang | 2014-05-26 14:13:47 +0200 |
|---|---|---|
| committer | Joerg Roedel | 2014-07-04 11:34:20 +0200 |
| commit | effad4b59f8a24f94c22c7fe38141c3b0576c366 (patch) | |
| tree | ccb74645cf347d5be2ba75b5011ec01ad9b7ce1a /drivers/iommu | |
| parent | iommu/vt-d: Don't use magic number in dma_pte_superpage (diff) | |
| download | kernel-qcow2-linux-effad4b59f8a24f94c22c7fe38141c3b0576c366.tar.gz kernel-qcow2-linux-effad4b59f8a24f94c22c7fe38141c3b0576c366.tar.xz kernel-qcow2-linux-effad4b59f8a24f94c22c7fe38141c3b0576c366.zip | |
iommu/vt-d: Remove the useless dma_pte_addr
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 5d86e932c8dc..cc2d22243fc0 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -849,13 +849,11 @@ static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain, domain_flush_cache(domain, tmp_page, VTD_PAGE_SIZE); pteval = ((uint64_t)virt_to_dma_pfn(tmp_page) << VTD_PAGE_SHIFT) | DMA_PTE_READ | DMA_PTE_WRITE; - if (cmpxchg64(&pte->val, 0ULL, pteval)) { + if (cmpxchg64(&pte->val, 0ULL, pteval)) /* Someone else set it while we were thinking; use theirs. */ free_pgtable_page(tmp_page); - } else { - dma_pte_addr(pte); + else domain_flush_cache(domain, pte, sizeof(*pte)); - } } if (level == 1) break; |