linux-kernel - [PATCH 8/8] crypto: atmel: Use dmaengine_prep_slave_single

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Message-Id: <20251208-dma_prep_config-v1-8-53490c5e1e2a@nxp.com>
Date: Mon, 08 Dec 2025 12:09:47 -0500
From: Frank Li <Frank.Li@....com>
To: Vinod Koul <vkoul@...nel.org>, Manivannan Sadhasivam <mani@...nel.org>, 
 Krzysztof Wilczyński <kwilczynski@...nel.org>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, 
 Bjorn Helgaas <bhelgaas@...gle.com>, Christoph Hellwig <hch@....de>, 
 Sagi Grimberg <sagi@...mberg.me>, Chaitanya Kulkarni <kch@...dia.com>, 
 Herbert Xu <herbert@...dor.apana.org.au>, 
 "David S. Miller" <davem@...emloft.net>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, Koichiro Den <den@...inux.co.jp>, 
 Niklas Cassel <cassel@...nel.org>
Cc: dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-pci@...r.kernel.org, linux-nvme@...ts.infradead.org, 
 mhi@...ts.linux.dev, linux-arm-msm@...r.kernel.org, 
 linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 imx@...ts.linux.dev, Frank Li <Frank.Li@....com>
Subject: [PATCH 8/8] crypto: atmel: Use
 dmaengine_prep_slave_single_config() API

Using new API dmaengine_prep_slave_single_config() to simple code.

No functional change.

Signed-off-by: Frank Li <Frank.Li@....com>
---
 drivers/crypto/atmel-aes.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index 3a2684208dda9ee45d71b4bc2958be293a4fb6fe..14d46186865a1a6d8a11486b8f3aca92341fb1f9 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -820,12 +820,10 @@ static int atmel_aes_dma_transfer_start(struct atmel_aes_dev *dd,
 		return -EINVAL;
 	}

-	err = dmaengine_slave_config(dma->chan, &config);
-	if (err)
-		return err;
-
-	desc = dmaengine_prep_slave_sg(dma->chan, dma->sg, dma->sg_len, dir,
-				       DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	desc = dmaengine_prep_slave_sg_config(dma->chan, dma->sg, dma->sg_len,
+					      dir,
+					      DMA_PREP_INTERRUPT | DMA_CTRL_ACK,
+					      &config);
 	if (!desc)
 		return -ENOMEM;

-- 
2.34.1