shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 19:30:30 +09:00
Code Issues Packages Projects Releases Wiki Activity

dma-direct: don't check swiotlb=force in dma_direct_map_resource

Browse Source 
[ Upstream commit 4268ac6ae5 ]

When mapping resources we can't just use swiotlb ram for bounce
buffering.  Switch to a direct dma_capable check instead.

Fixes: cfced78696 ("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>
This commit is contained in:
Christoph Hellwig
2019-11-19 17:35:36 +01:00
committed by Greg Kroah-Hartman
parent 0812e7de49
commit b8444fa88d
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/dma/direct.c
View File

@@ -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;
}