From: Christoph Hellwig <hch@lst.de>
Date: Thu, 28 Jun 2018 11:59:25 +0000 (+0200)
Subject: swiotlb: export swiotlb_dma_ops
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=210d0797c97d0e8f3b1a932a0dc143f4c57008a3;p=openwrt%2Fstaging%2Fblogic.git

swiotlb: export swiotlb_dma_ops

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: 10314e09 ("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
index 04b68d9dffac..904541055792 100644
--- 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);