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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: YYh4pdgkdzU87tRyjQQvuvz20nvXo49VEjT/MveM6K3Cq2IuXuJiYRxvIgOipIqUUYNeXnTPPy4D/HOJSjnsD7Hps3pIJ/iKDU0RI+zwEVn2R6LI4Rfl4MdvpDdyNwJU2G85Zy7Aj6zWfUaeLS9np+uxRvVeusgGuOP2VbOLW/MqbMUZbesBU9rTLk5+toniC4XtsPUE74lVzZFItXUzEKXt4csHttFvKqdQyP8mDAoBLsDkkhMnFdL+IaBS46O9WgezJ3A/eYChK0K7mIkJUpIdAnYIckI3Z+Q7W+vrScCf5vCOf+PcQP8HqJnYPVdQW7mGisCOwKemhB4mjo+naZlvAgNemhapt6DvrSZzXL0g5zMvJNsdtCWIo49BdqvoDWSiYc+HbtLEdKMUV5U2UZtCJLWJwW1V182bob1zhKPfbnE3L4upyvpVW+Lu0Jga X-OriginatorOrg: foss.st.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Sep 2026 09:10:56.6350 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 72641aa2-d6b6-4e01-7cc6-08df0a646def 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: ZR1PEPF0000E6B5.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI3PR10MB756752 On 9/4/26 10:35, Amelie Delaunay wrote: > 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". > Oh, okay — my bad. I've just looked at v1, and I now understand that you split the vchan_chan_name() and dma_chan_name() updates. I didn’t catch that at first glance because your cover letter hasn’t changed between v1 and v2. "1st patch: use the existing helper dma_chan_name() to reduce rename differences. 2nd patch: rename drivers/dma" > 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 >> > > _______________________________________________ > Linux-stm32 mailing list > Linux-stm32@st-md-mailman.stormreply.com > https://st-md-mailman.stormreply.com/mailman/listinfo/linux-stm32