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Date: Wed, 23 Mar 2016 20:34:19 +0200 From: "Michael S. Tsirkin" <mst@...hat.com> To: linux-kernel@...r.kernel.org Cc: Jiang Liu <jiang.liu@...ux.intel.com>, Alex Williamson <alex.williamson@...hat.com>, David Woodhouse <dwmw2@...radead.org>, Joerg Roedel <joro@...tes.org>, iommu@...ts.linux-foundation.org Subject: [PATCH] intel-iommu: fix up comment dma_pte_free_pagetable no longer depends on last level ptes being clear, it clears them itself. Fix up the comment to match. Cc: Jiang Liu <jiang.liu@...ux.intel.com> Suggested-by: Alex Williamson <alex.williamson@...hat.com> Signed-off-by: Michael S. Tsirkin <mst@...hat.com> --- drivers/iommu/intel-iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index a2e1b7f..0100553 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -1143,7 +1143,7 @@ next: } while (!first_pte_in_page(++pte) && pfn <= last_pfn); } -/* free page table pages. last level pte should already be cleared */ +/* clear last level (leaf) ptes and free page table pages. */ static void dma_pte_free_pagetable(struct dmar_domain *domain, unsigned long start_pfn, unsigned long last_pfn) -- MST
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