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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 7Nu1x+BgUG32rkucRghRc8xYBseh5qbrNgvot1CwJuv2PToQVkBcPNfeoQwaz/GOE2cqdRh3I4XsPW+Mb+IlxAVAU3Pzdcy8S3RtIvjEYr2AgQwfWXf/xQSR0EX7sfe7dda3AgErZNZffWn4MEthtGZu0X5fxXjXxstCKFNgHOH+KPaVyrw3cIOMMn6P/8BGNzvBylRuRBxy7ZZ1rMPouKDOSmNIiR/dfXmJ2toknKgyhh0vKxxyxhgnZLONklwiMDFIfyyYUV8o3sxPuzXPLbEQPQID5VpxCHx4jmhQaBOx9jy1J16asPej6ib2U3tAvZegzO7sxYgROqsEFTkykwYmZgLwF5BTWrsQoEST77zh4SzyTnbf7vDHEHdhxVePWhmeEQw0PVIHjy8Q83rPOji1tP0vrSTQGllXzPe3yUuz3yFPHcRttunYvUZ/nX/M X-OriginatorOrg: foss.st.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Sep 2026 08:35:49.4973 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2065755b-6d7b-4a40-5e68-08df0a5f85f5 X-MS-Exchange-CrossTenant-Id: 75e027c9-20d5-47d5-b82f-77d7cd041e8f X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=75e027c9-20d5-47d5-b82f-77d7cd041e8f;Ip=[164.130.1.88];Helo=[smtpO365.st.com] X-MS-Exchange-CrossTenant-AuthSource: AMS0EPF00000567.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR10MB3615 Hi Frank, On 9/3/26 22:53, Frank.Li@oss.nxp.com wrote: > From: Frank Li > > Introduce vchan_chan_name() to obtain the DMA channel device name. > > Use a dedicated helper instead of directly accessing dma_chan::dev > so callers remain unaffected by an upcoming rename of the struct member. > > Signed-off-by: Frank Li > --- > drivers/dma/arm-dma350.c | 2 +- > drivers/dma/loongson/loongson2-apb-cmc-dma.c | 2 +- > drivers/dma/stm32/stm32-dma.c | 2 +- > drivers/dma/stm32/stm32-dma3.c | 4 ++-- Could you move the driver updates from this patch to the next one? I don’t understand why the drivers above are modified here, while others are deferred to "[PATCH v2 2/3] dmaengine: use dma_chan_name() helper to get per-channel device name". Regards, Amelie > drivers/dma/virt-dma.h | 11 +++++++++++ > 5 files changed, 16 insertions(+), 5 deletions(-) > > diff --git a/drivers/dma/arm-dma350.c b/drivers/dma/arm-dma350.c > index 09403aca8bb06..52f5242ea3327 100644 > --- a/drivers/dma/arm-dma350.c > +++ b/drivers/dma/arm-dma350.c > @@ -512,7 +512,7 @@ static int d350_alloc_chan_resources(struct dma_chan *chan) > { > struct d350_chan *dch = to_d350_chan(chan); > int ret = request_irq(dch->irq, d350_irq, IRQF_SHARED, > - dev_name(&dch->vc.chan.dev->device), dch); > + vchan_chan_name(&dch->vc), dch); > if (!ret) > writel_relaxed(CH_INTREN_DONE | CH_INTREN_ERR, dch->base + CH_INTREN); > > diff --git a/drivers/dma/loongson/loongson2-apb-cmc-dma.c b/drivers/dma/loongson/loongson2-apb-cmc-dma.c > index 1c9a542edc859..2f1c8c4fd0654 100644 > --- a/drivers/dma/loongson/loongson2-apb-cmc-dma.c > +++ b/drivers/dma/loongson/loongson2-apb-cmc-dma.c > @@ -678,7 +678,7 @@ static int loongson2_cmc_dma_probe(struct platform_device *pdev) > return lchan->irq; > > ret = devm_request_irq(dev, lchan->irq, loongson2_cmc_dma_chan_irq, IRQF_SHARED, > - dev_name(chan2dev(lchan)), lchan); > + vchan_chan_name(&lchan->vchan), lchan); > if (ret) > return ret; > } > diff --git a/drivers/dma/stm32/stm32-dma.c b/drivers/dma/stm32/stm32-dma.c > index d3ad78562a140..3e8151e2ad75a 100644 > --- a/drivers/dma/stm32/stm32-dma.c > +++ b/drivers/dma/stm32/stm32-dma.c > @@ -1668,7 +1668,7 @@ static int stm32_dma_probe(struct platform_device *pdev) > > ret = devm_request_irq(&pdev->dev, chan->irq, > stm32_dma_chan_irq, 0, > - dev_name(chan2dev(chan)), chan); > + vchan_chan_name(&chan->vchan), chan); > if (ret) { > dev_err(&pdev->dev, > "request_irq failed with err %d channel %d\n", > diff --git a/drivers/dma/stm32/stm32-dma3.c b/drivers/dma/stm32/stm32-dma3.c > index 4724e7fa0008e..1ee1bd22703fb 100644 > --- a/drivers/dma/stm32/stm32-dma3.c > +++ b/drivers/dma/stm32/stm32-dma3.c > @@ -1892,10 +1892,10 @@ static int stm32_dma3_probe(struct platform_device *pdev) > chan->irq = ret; > > ret = devm_request_irq(&pdev->dev, chan->irq, stm32_dma3_chan_irq, 0, > - dev_name(chan2dev(chan)), chan); > + vchan_chan_name(&chan->vchan), chan); > if (ret) { > dev_err_probe(&pdev->dev, ret, "Failed to request channel %s IRQ\n", > - dev_name(chan2dev(chan))); > + vchan_chan_name(&chan->vchan)); > goto err_clk_disable; > } > } > diff --git a/drivers/dma/virt-dma.h b/drivers/dma/virt-dma.h > index 59d9eabc8b674..dd023a3831209 100644 > --- a/drivers/dma/virt-dma.h > +++ b/drivers/dma/virt-dma.h > @@ -209,6 +209,17 @@ static inline void vchan_free_chan_resources(struct virt_dma_chan *vc) > vchan_dma_desc_free_list(vc, &head); > } > > +/** > + * vchan_chan_name - Return vchan DMA channel device name > + * @vc: virtual channel > + * > + * Return: The name of the DMA channel device > + */ > +static inline const char *vchan_chan_name(struct virt_dma_chan *vc) > +{ > + return dma_chan_name(&vc->chan); > +} > + > /** > * vchan_synchronize() - synchronize callback execution to the current context > * @vc: virtual channel to synchronize >