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[PATCH 4/9] arm64: dma-mapping: export symbol arch_setup_dma_ops

The BrcmSTB driver needs to get ahold of a pointer to swiotlb_dma_ops.
However, that variable is defined as static.  Instead, we use
arch_setup_dma_ops() to get the pointer to swiotlb_dma_ops.  Since
we also want our driver to be a separate module, we need to
export this function.

Signed-off-by: Jim Quinlan <jim2101024@xxxxxxxxx>
 arch/arm64/mm/dma-mapping.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 614af88..dae572f 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -936,3 +936,4 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,