From: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
To: Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Subject: [PATCH 1/1] crypto: img-hash - use dma_data_direction when calling dma_map_sg
Date: Sun, 15 Jan 2017 13:37:50 +0100 [thread overview]
Message-ID: <20170115123750.3010-1-nicolas.iooss_linux@m4x.org> (raw)
The fourth argument of dma_map_sg() and dma_unmap_sg() is an item of
dma_data_direction enum. Function img_hash_xmit_dma() wrongly used
DMA_MEM_TO_DEV, which is an item of dma_transfer_direction enum.
Replace DMA_MEM_TO_DEV (which value is 1) with DMA_TO_DEVICE (which
value is fortunately also 1) when calling dma_map_sg() and
dma_unmap_sg().
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
---
drivers/crypto/img-hash.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c
index a2e77b87485b..9b07f3d88feb 100644
--- a/drivers/crypto/img-hash.c
+++ b/drivers/crypto/img-hash.c
@@ -226,7 +226,7 @@ static int img_hash_xmit_dma(struct img_hash_dev *hdev, struct scatterlist *sg)
struct dma_async_tx_descriptor *desc;
struct img_hash_request_ctx *ctx = ahash_request_ctx(hdev->req);
- ctx->dma_ct = dma_map_sg(hdev->dev, sg, 1, DMA_MEM_TO_DEV);
+ ctx->dma_ct = dma_map_sg(hdev->dev, sg, 1, DMA_TO_DEVICE);
if (ctx->dma_ct == 0) {
dev_err(hdev->dev, "Invalid DMA sg\n");
hdev->err = -EINVAL;
@@ -241,7 +241,7 @@ static int img_hash_xmit_dma(struct img_hash_dev *hdev, struct scatterlist *sg)
if (!desc) {
dev_err(hdev->dev, "Null DMA descriptor\n");
hdev->err = -EINVAL;
- dma_unmap_sg(hdev->dev, sg, 1, DMA_MEM_TO_DEV);
+ dma_unmap_sg(hdev->dev, sg, 1, DMA_TO_DEVICE);
return -EINVAL;
}
desc->callback = img_hash_dma_callback;
--
2.11.0
next reply other threads:[~2017-01-15 12:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-15 12:37 Nicolas Iooss [this message]
2017-01-23 14:58 ` [PATCH 1/1] crypto: img-hash - use dma_data_direction when calling dma_map_sg Herbert Xu
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