From aaf796dc6e84e809e4c791b6517326b26312c972 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sun, 24 Dec 2017 15:07:34 +0100
Subject: [PATCH] swiotlb: wire up ->dma_supported in swiotlb_dma_ops
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To properly reject too small DMA masks based on the addressability of the
bounce buffer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christian König <christian.koenig@amd.com>
---
 lib/swiotlb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 0fae2f45c3c0..539fd1099ba9 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -1128,5 +1128,6 @@ const struct dma_map_ops swiotlb_dma_ops = {
 	.unmap_sg		= swiotlb_unmap_sg_attrs,
 	.map_page		= swiotlb_map_page,
 	.unmap_page		= swiotlb_unmap_page,
+	.dma_supported		= swiotlb_dma_supported,
 };
 #endif /* CONFIG_DMA_DIRECT_OPS */