Merge v7.1.5linux-rolling-stable

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 7cabc82305d6..f59f926d4bfa 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -223,6 +223,7 @@ struct ntb_transport_mw {
 	void *alloc_addr;
 	void *virt_addr;
 	dma_addr_t dma_addr;
+	dma_addr_t original_dma_addr;
 };
 
 struct ntb_transport_client_dev {
@@ -765,8 +766,8 @@ static void ntb_free_mw(struct ntb_transport_ctx *nt, int num_mw)
 		return;
 
 	ntb_mw_clear_trans(nt->ndev, PIDX, num_mw);
-	dma_free_coherent(dma_dev, mw->alloc_size,
-			  mw->alloc_addr, mw->dma_addr);
+	dma_free_attrs(dma_dev, mw->alloc_size, mw->alloc_addr,
+		       mw->original_dma_addr, DMA_ATTR_FORCE_CONTIGUOUS);
 	mw->xlat_size = 0;
 	mw->buff_size = 0;
 	mw->alloc_size = 0;
@@ -802,6 +803,7 @@ static int ntb_alloc_mw_buffer(struct ntb_transport_mw *mw,
 		return -ENOMEM;
 	}
 	virt_addr = alloc_addr;
+	mw->original_dma_addr = dma_addr;
 
 	/*
 	 * we must ensure that the memory address allocated is BAR size
@@ -826,8 +828,8 @@ static int ntb_alloc_mw_buffer(struct ntb_transport_mw *mw,
 	return 0;
 
 err:
-	dma_free_coherent(ntb_dev, mw->alloc_size, alloc_addr, dma_addr);
-
+	dma_free_attrs(ntb_dev, mw->alloc_size, alloc_addr, dma_addr,
+		       DMA_ATTR_FORCE_CONTIGUOUS);
 	return rc;
 }