diff mbox series

[5.4,091/102] dma-direct: dont check swiotlb=force in dma_direct_map_resource

Message ID 20200124092820.420426594@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Jan. 24, 2020, 9:31 a.m. UTC 
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 mbox series

Patch

diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c
index 8402b29c280f5..867fd72cb2605 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;
 	}