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Date: Mon, 18 Feb 2019 14:43:40 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Nathan Chancellor <natechancellor@...il.com>, Nick Desaulniers <ndesaulniers@...gle.com>, Herbert Xu <herbert@...dor.apana.org.au>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 3.18 044/108] crypto: ux500 - Use proper enum in hash_set_dma_transfer 3.18-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 5ac93f808338f4dd465402e91869702eb87db241 ] Clang warns when one enumerated type is implicitly converted to another: drivers/crypto/ux500/hash/hash_core.c:169:4: warning: implicit conversion from enumeration type 'enum dma_data_direction' to different enumeration type 'enum dma_transfer_direction' [-Wenum-conversion] direction, DMA_CTRL_ACK | DMA_PREP_INTERRUPT); ^~~~~~~~~ 1 warning generated. dmaengine_prep_slave_sg expects an enum from dma_transfer_direction. We know that the only direction supported by this function is DMA_TO_DEVICE because of the check at the top of this function so we can just use the equivalent value from dma_transfer_direction. DMA_TO_DEVICE = DMA_MEM_TO_DEV = 1 Signed-off-by: Nathan Chancellor <natechancellor@...il.com> Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/crypto/ux500/hash/hash_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/ux500/hash/hash_core.c b/drivers/crypto/ux500/hash/hash_core.c index 3ff21c3e9ab2..48614b33e30e 100644 --- a/drivers/crypto/ux500/hash/hash_core.c +++ b/drivers/crypto/ux500/hash/hash_core.c @@ -181,7 +181,7 @@ static int hash_set_dma_transfer(struct hash_ctx *ctx, struct scatterlist *sg, __func__); desc = dmaengine_prep_slave_sg(channel, ctx->device->dma.sg, ctx->device->dma.sg_len, - direction, DMA_CTRL_ACK | DMA_PREP_INTERRUPT); + DMA_MEM_TO_DEV, DMA_CTRL_ACK | DMA_PREP_INTERRUPT); if (!desc) { dev_err(ctx->device->dev, "%s: device_prep_slave_sg() failed!\n", __func__); -- 2.19.1
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