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| author | Nicolin Chen <nicoleotsuka@gmail.com> | 2019-06-03 15:52:59 -0700 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-06-14 14:30:21 +0200 |
| commit | 591fcf3b301b3396d96f082298a9e8403c027d3f (patch) | |
| tree | 3699361bd267f87f1da51e6a6fb20bd2e3ce14db /drivers/iommu | |
| parent | 4b4b077cbd0a998aebaa72c199e06b8a4c8dcfee (diff) | |
| download | linux-591fcf3b301b3396d96f082298a9e8403c027d3f.tar.gz linux-591fcf3b301b3396d96f082298a9e8403c027d3f.tar.bz2 linux-591fcf3b301b3396d96f082298a9e8403c027d3f.zip | |
iommu/dma: Apply dma_{alloc,free}_contiguous functions
This patch replaces dma_{alloc,release}_from_contiguous() with
dma_{alloc,free}_contiguous() to simplify those function calls.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/dma-iommu.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index 0dee374fc64a..cc0613c83d71 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -951,8 +951,8 @@ static void __iommu_dma_free(struct device *dev, size_t size, void *cpu_addr) if (pages) __iommu_dma_free_pages(pages, count); - if (page && !dma_release_from_contiguous(dev, page, count)) - __free_pages(page, get_order(alloc_size)); + if (page) + dma_free_contiguous(dev, page, alloc_size); } static void iommu_dma_free(struct device *dev, size_t size, void *cpu_addr, @@ -970,12 +970,7 @@ static void *iommu_dma_alloc_pages(struct device *dev, size_t size, struct page *page = NULL; void *cpu_addr; - if (gfpflags_allow_blocking(gfp)) - page = dma_alloc_from_contiguous(dev, alloc_size >> PAGE_SHIFT, - get_order(alloc_size), - gfp & __GFP_NOWARN); - if (!page) - page = alloc_pages(gfp, get_order(alloc_size)); + page = dma_alloc_contiguous(dev, alloc_size, gfp); if (!page) return NULL; @@ -997,8 +992,7 @@ static void *iommu_dma_alloc_pages(struct device *dev, size_t size, memset(cpu_addr, 0, alloc_size); return cpu_addr; out_free_pages: - if (!dma_release_from_contiguous(dev, page, alloc_size >> PAGE_SHIFT)) - __free_pages(page, get_order(alloc_size)); + dma_free_contiguous(dev, page, alloc_size); return NULL; } |