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authorChristoph Hellwig <hch@lst.de>2019-08-06 15:01:50 +0300
committerChristoph Hellwig <hch@lst.de>2019-09-04 11:13:18 +0200
commitf9f3232a7d0ab73a33d11f4056c5823010f03d55 (patch)
tree021c07b01f104492a5d049a885bc8fb931839c34 /drivers/parisc
parent14451467014b4c8aff6570b44b6d0ee68cd49bc0 (diff)
downloadlinux-f9f3232a7d0ab73a33d11f4056c5823010f03d55.tar.bz2
dma-mapping: explicitly wire up ->mmap and ->get_sgtable
While the default ->mmap and ->get_sgtable implementations work for the majority of our dma_map_ops impementations they are inherently safe for others that don't use the page allocator or CMA and/or use their own way of remapping not covered by the common code. So remove the defaults if these methods are not wired up, but instead wire up the default implementations for all safe instances. Fixes: e1c7e324539a ("dma-mapping: always provide the dma_map_ops based implementation") Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/parisc')
-rw-r--r--drivers/parisc/ccio-dma.c2
-rw-r--r--drivers/parisc/sba_iommu.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 217f15aafa4a..1d7125d29bee 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1024,6 +1024,8 @@ static const struct dma_map_ops ccio_ops = {
.unmap_page = ccio_unmap_page,
.map_sg = ccio_map_sg,
.unmap_sg = ccio_unmap_sg,
+ .mmap = dma_common_mmap,
+ .get_sgtable = dma_common_get_sgtable,
};
#ifdef CONFIG_PROC_FS
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 296668caf7e5..fa4df65b7e28 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1084,6 +1084,8 @@ static const struct dma_map_ops sba_ops = {
.unmap_page = sba_unmap_page,
.map_sg = sba_map_sg,
.unmap_sg = sba_unmap_sg,
+ .mmap = dma_common_mmap,
+ .get_sgtable = dma_common_get_sgtable,
};