swiotlb: export swiotlb_dma_ops

Christoph Hellwig · Christoph Hellwig · commit 210d0797c97d · 2018-06-28T14:00:40.000+02:00
For architectures that do not use per-device dma ops we need to export the dma_map_ops structure returned from get_arch_dma_ops(). Fixes: 10314e0 ("riscv: add swiotlb support") Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Andreas Schwab <schwab@suse.de>
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
@@ -1085,3 +1085,4 @@ const struct dma_map_ops swiotlb_dma_ops = {
 	.unmap_page		= swiotlb_unmap_page,
 	.dma_supported		= dma_direct_supported,
 };
+EXPORT_SYMBOL(swiotlb_dma_ops);
