From: Christoph Hellwig hch@lst.de
[ Upstream commit 4268ac6ae5870af10a7417b22990d615f72f77e2 ]
When mapping resources we can't just use swiotlb ram for bounce buffering. Switch to a direct dma_capable check instead.
Fixes: cfced786969c ("dma-mapping: remove the default map_resource implementation") Reported-by: Robin Murphy robin.murphy@arm.com Signed-off-by: Christoph Hellwig hch@lst.de Acked-by: Marek Szyprowski m.szyprowski@samsung.com Tested-by: Marek Szyprowski m.szyprowski@samsung.com Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/dma/direct.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 8402b29c280f..867fd72cb260 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -375,7 +375,7 @@ dma_addr_t dma_direct_map_resource(struct device *dev, phys_addr_t paddr, { dma_addr_t dma_addr = paddr;
- if (unlikely(!dma_direct_possible(dev, dma_addr, size))) { + if (unlikely(!dma_capable(dev, dma_addr, size))) { report_addr(dev, dma_addr, size); return DMA_MAPPING_ERROR; }