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authorChristoph Hellwig <hch@lst.de>2019-08-06 15:01:50 +0300
committerChristoph Hellwig <hch@lst.de>2019-09-04 12:13:18 +0300
commitf9f3232a7d0ab73a33d11f4056c5823010f03d55 (patch)
tree021c07b01f104492a5d049a885bc8fb931839c34 /arch/mips/jazz/jazzdma.c
parent14451467014b4c8aff6570b44b6d0ee68cd49bc0 (diff)
downloadlinux-f9f3232a7d0ab73a33d11f4056c5823010f03d55.tar.xz
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 'arch/mips/jazz/jazzdma.c')
-rw-r--r--arch/mips/jazz/jazzdma.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c
index 1804dc9d8136..a01e14955187 100644
--- a/arch/mips/jazz/jazzdma.c
+++ b/arch/mips/jazz/jazzdma.c
@@ -682,5 +682,7 @@ const struct dma_map_ops jazz_dma_ops = {
.sync_sg_for_device = jazz_dma_sync_sg_for_device,
.dma_supported = dma_direct_supported,
.cache_sync = arch_dma_cache_sync,
+ .mmap = dma_common_mmap,
+ .get_sgtable = dma_common_get_sgtable,
};
EXPORT_SYMBOL(jazz_dma_ops);