diff options
Diffstat (limited to 'arch/x86/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/x86/include/asm/dma-mapping.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index f82fdc412c64..b93405b228b4 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -6,6 +6,7 @@ * Documentation/DMA-API.txt for documentation. */ +#include <linux/kmemcheck.h> #include <linux/scatterlist.h> #include <linux/dma-debug.h> #include <linux/dma-attrs.h> @@ -60,6 +61,7 @@ dma_map_single(struct device *hwdev, void *ptr, size_t size, dma_addr_t addr; BUG_ON(!valid_dma_direction(dir)); + kmemcheck_mark_initialized(ptr, size); addr = ops->map_page(hwdev, virt_to_page(ptr), (unsigned long)ptr & ~PAGE_MASK, size, dir, NULL); @@ -87,8 +89,12 @@ dma_map_sg(struct device *hwdev, struct scatterlist *sg, { struct dma_map_ops *ops = get_dma_ops(hwdev); int ents; + struct scatterlist *s; + int i; BUG_ON(!valid_dma_direction(dir)); + for_each_sg(sg, s, nents, i) + kmemcheck_mark_initialized(sg_virt(s), s->length); ents = ops->map_sg(hwdev, sg, nents, dir, NULL); debug_dma_map_sg(hwdev, sg, nents, ents, dir); @@ -200,6 +206,7 @@ static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, dma_addr_t addr; BUG_ON(!valid_dma_direction(dir)); + kmemcheck_mark_initialized(page_address(page) + offset, size); addr = ops->map_page(dev, page, offset, size, dir, NULL); debug_dma_map_page(dev, page, offset, size, dir, addr, false); |