linux-kernel - [PATCH 2/8] PCI: endpoint: pci-epf-test: use new DMA API to simple code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251208-dma_prep_config-v1-2-53490c5e1e2a@nxp.com>
Date: Mon, 08 Dec 2025 12:09:41 -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 2/8] PCI: endpoint: pci-epf-test: use new DMA API to simple
 code

Using new API dmaengine_prep_slave_single_config() to simple code.

No functional change.

Signed-off-by: Frank Li <Frank.Li@....com>
---
 drivers/pci/endpoint/functions/pci-epf-test.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index debd235253c5ba54eb8f06d13261c407ee3768ec..eef569db0784d37bd6468b87fd951a5a0799ae69 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -162,12 +162,8 @@ static int pci_epf_test_data_transfer(struct pci_epf_test *epf_test,
 		else
 			sconf.src_addr = dma_remote;

-		if (dmaengine_slave_config(chan, &sconf)) {
-			dev_err(dev, "DMA slave config fail\n");
-			return -EIO;
-		}
-		tx = dmaengine_prep_slave_single(chan, dma_local, len, dir,
-						 flags);
+		tx = dmaengine_prep_slave_single_config(chan, dma_local, len,
+							dir, flags, &sconf);
 	} else {
 		tx = dmaengine_prep_dma_memcpy(chan, dma_dst, dma_src, len,
 					       flags);

-- 
2.34.1