linux-kernel - [PATCH v4 2/6] dmaengine: fsl-edma: fix spare build warning

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Message-Id: <20231221153528.1588049-3-Frank.Li@nxp.com>
Date: Thu, 21 Dec 2023 10:35:24 -0500
From: Frank Li <Frank.Li@....com>
To: joy.zou@....com,
	vkoul@...nel.org
Cc: devicetree@...r.kernel.org,
	dmaengine@...r.kernel.org,
	frank.li@....com,
	imx@...ts.linux.dev,
	krzysztof.kozlowski+dt@...aro.org,
	linux-kernel@...r.kernel.org,
	peng.fan@....com,
	robh+dt@...nel.org,
	shenwei.wang@....com
Subject: [PATCH v4 2/6] dmaengine: fsl-edma: fix spare build warning

../drivers/dma/fsl-edma-common.c:93:9: sparse: warning: cast removes address space '__iomem' of expression
../drivers/dma/fsl-edma-common.c:101:25: sparse: warning: cast removes address space '__iomem' of expression
...
../drivers/dma/fsl-edma-main.c:557:17: sparse:    got restricted __le32 [usertype]

Signed-off-by: Frank Li <Frank.Li@....com>
---
 drivers/dma/fsl-edma-common.h | 6 ++++--
 drivers/dma/fsl-edma-main.c   | 2 +-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h
index ce779274d81e5..fb45c7d4c1f4c 100644
--- a/drivers/dma/fsl-edma-common.h
+++ b/drivers/dma/fsl-edma-common.h
@@ -243,11 +243,13 @@ struct fsl_edma_engine {
 
 #define edma_readl_chreg(chan, __name)				\
 	edma_readl(chan->edma,					\
-		   (void __iomem *)&(container_of(chan->tcd, struct fsl_edma3_ch_reg, tcd)->__name))
+		   (void __iomem *)&(container_of(((__force void *)chan->tcd),\
+						  struct fsl_edma3_ch_reg, tcd)->__name))
 
 #define edma_writel_chreg(chan, val,  __name)			\
 	edma_writel(chan->edma, val,				\
-		   (void __iomem *)&(container_of(chan->tcd, struct fsl_edma3_ch_reg, tcd)->__name))
+		   (void __iomem *)&(container_of(((__force void *)chan->tcd),\
+						  struct fsl_edma3_ch_reg, tcd)->__name))
 
 #define fsl_edma_get_tcd(_chan, _tcd, _field) ((_tcd)->_field)
 
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c
index f53b0ec17bcbc..86b293eba27c2 100644
--- a/drivers/dma/fsl-edma-main.c
+++ b/drivers/dma/fsl-edma-main.c
@@ -537,7 +537,7 @@ static int fsl_edma_probe(struct platform_device *pdev)
 		fsl_chan->pdev = pdev;
 		vchan_init(&fsl_chan->vchan, &fsl_edma->dma_dev);
 
-		edma_write_tcdreg(fsl_chan, 0, csr);
+		edma_write_tcdreg(fsl_chan, cpu_to_le32(0), csr);
 		fsl_edma_chan_mux(fsl_chan, 0, false);
 	}
 
-- 
2.34.1