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authorSouptick Joarder <jrdr.linux@gmail.com>2019-05-14 03:22:15 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-14 19:47:50 +0300
commitb0d0084fd906c0a067909e45d3cc4cc01ceee33f (patch)
treec2d2e53ca8c8825d55376f268daa4287774a42f0 /drivers/iommu
parente60b72b1a9f5244931bb0c09918f7992fafa9e56 (diff)
downloadlinux-b0d0084fd906c0a067909e45d3cc4cc01ceee33f.tar.xz
iommu/dma-iommu.c: convert to use vm_map_pages()
Convert to use vm_map_pages() to map range of kernel memory to user vma. Link: http://lkml.kernel.org/r/80c3d220fc6ada73a88ce43ca049afb55a889258.1552921225.git.jrdr.linux@gmail.com Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Airlie <airlied@linux.ie> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Joerg Roedel <joro@8bytes.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Juergen Gross <jgross@suse.com> Cc: Kees Cook <keescook@chromium.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Cc: Pawel Osciak <pawel@osciak.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@surriel.com> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Sandy Huang <hjc@rock-chips.com> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Thierry Reding <treding@nvidia.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/dma-iommu.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 77aabe637a60..20abd19bbfbe 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -619,17 +619,7 @@ out_free_pages:
int iommu_dma_mmap(struct page **pages, size_t size, struct vm_area_struct *vma)
{
- unsigned long uaddr = vma->vm_start;
- unsigned int i, count = PAGE_ALIGN(size) >> PAGE_SHIFT;
- int ret = -ENXIO;
-
- for (i = vma->vm_pgoff; i < count && uaddr < vma->vm_end; i++) {
- ret = vm_insert_page(vma, uaddr, pages[i]);
- if (ret)
- break;
- uaddr += PAGE_SIZE;
- }
- return ret;
+ return vm_map_pages(vma, pages, PAGE_ALIGN(size) >> PAGE_SHIFT);
}
static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys,