[PATCH v2 1/1] PCI: Replace chan->device->dev with dmaengine_get_provider_device()

[PATCH v2 1/1] PCI: Replace chan->device->dev with dmaengine_get_provider_device()

[Frank.Li]

From: Frank Li <Frank.Li@nxp.com>

Use the dmaengine_get_provider_device() API instead of directly
accessing chan->device->dev to get the DMA provider device.

No functional change. Prepare make to struct dma_device private to the DMA
engine.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
Change in v2
- remove Assisted-by: LLM
- fix indention
---
 drivers/pci/endpoint/functions/pci-epf-mhi.c  | 4 ++--
 drivers/pci/endpoint/functions/pci-epf-test.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c
index 78f1fb1a6b0c7..80b4622446fcf 100644
--- a/drivers/pci/endpoint/functions/pci-epf-mhi.c
+++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c
@@ -646,8 +646,8 @@ static bool pci_epf_mhi_filter(struct dma_chan *chan, void *node)
 	memset(&caps, 0, sizeof(caps));
 	dma_get_slave_caps(chan, &caps);
 
-	return chan->device->dev == filter->dev && filter->dma_mask &
-					caps.directions;
+	return dmaengine_get_provider_device(chan) == filter->dev &&
+	       (filter->dma_mask & caps.directions);
 }
 
 static int pci_epf_mhi_dma_init(struct pci_epf_mhi *epf_mhi)
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index d4905aa8e4c01..ba2bc0c2f3f9c 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -238,8 +238,8 @@ static bool epf_dma_filter_fn(struct dma_chan *chan, void *node)
 	memset(&caps, 0, sizeof(caps));
 	dma_get_slave_caps(chan, &caps);
 
-	return chan->device->dev == filter->dev
-		&& (filter->dma_mask & caps.directions);
+	return dmaengine_get_provider_device(chan) == filter->dev &&
+	       (filter->dma_mask & caps.directions);
 }
 
 /**
-- 
2.43.0

Re: [PATCH v2 1/1] PCI: Replace chan->device->dev with dmaengine_get_provider_device()

[sashiko-bot]

> From: Frank Li <Frank.Li@nxp.com>
> 
> Use the dmaengine_get_provider_device() API instead of directly
> accessing chan->device->dev to get the DMA provider device.
> 
> No functional change. Prepare make to struct dma_device private to the DMA
> engine.
> 
> Signed-off-by: Frank Li <Frank.Li@nxp.com>

Sashiko has reviewed this patch and found no issues.

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20261104150202.3224971-1-Frank.Li@oss.nxp.com?part=1

Re: [PATCH v2 1/1] PCI: Replace chan->device->dev with dmaengine_get_provider_device()

[Andy Shevchenko]

On Wed, Nov 04, 2026 at 10:01:59AM -0500, Frank.Li@oss.nxp.com wrote:
> 
> Use the dmaengine_get_provider_device() API instead of directly
> accessing chan->device->dev to get the DMA provider device.
> 
> No functional change. Prepare make to struct dma_device private to the DMA
> engine.

I would also make line lengths balanced

  No functional change. Prepare make to struct dma_device private
  to the DMA engine.

Either way,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

-- 
With Best Regards,
Andy Shevchenko