Commit effad4b5 authored by Yijing Wang's avatar Yijing Wang Committed by Joerg Roedel
Browse files

iommu/vt-d: Remove the useless dma_pte_addr 



Signed-off-by: default avatarYijing Wang <wangyijing@huawei.com>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent c3c75eb7

drivers/iommu/intel-iommu.c

+2 −4
Original line number Diff line number Diff line
@@ -849,14 +849,12 @@ 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;