From: Frank.Li@oss.nxp.com
To: "Jacky Huang" <ychuang3@nuvoton.com>,
"Shan-Chun Hung" <schung@nuvoton.com>,
"Vinod Koul" <vkoul@kernel.org>, "Frank Li" <Frank.Li@kernel.org>,
"Paul Cercueil" <paul@crapouillou.net>,
"Eugeniy Paltsev" <Eugeniy.Paltsev@synopsys.com>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Binbin Zhou" <zhoubinbin@loongson.cn>,
"Patrice Chotard" <patrice.chotard@foss.st.com>,
"Amélie Delaunay" <amelie.delaunay@foss.st.com>,
"Maxime Coquelin" <mcoquelin.stm32@gmail.com>,
"Alexandre Torgue" <alexandre.torgue@foss.st.com>,
"Steven Rostedt" <rostedt@goodmis.org>,
"Masami Hiramatsu" <mhiramat@kernel.org>,
"Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>,
"Thierry Reding" <thierry.reding@kernel.org>,
"Jonathan Hunter" <jonathanh@nvidia.com>,
"Ludovic Desroches" <ludovic.desroches@microchip.com>,
"Viresh Kumar" <vireshk@kernel.org>,
"Keguang Zhang" <keguang.zhang@gmail.com>,
"Andreas Färber" <afaerber@suse.de>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Daniel Mack" <daniel@zonque.org>,
"Haojian Zhuang" <haojian.zhuang@gmail.com>,
"Robert Jarzmik" <robert.jarzmik@free.fr>,
"Chen-Yu Tsai" <wens@kernel.org>,
"Jernej Skrabec" <jernej.skrabec@gmail.com>,
"Samuel Holland" <samuel@sholland.org>,
"Kelvin Cao" <kelvin.cao@microchip.com>,
"Logan Gunthorpe" <logang@deltatee.com>,
"Laxman Dewangan" <ldewangan@nvidia.com>,
"Vignesh Raghavendra" <vigneshr@ti.com>
Cc: linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-trace-kernel@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-actions@lists.infradead.org, linux-sunxi@lists.linux.dev,
imx@lists.linux.dev, Frank Li <Frank.Li@nxp.com>
Subject: [PATCH v3 2/4] dmaengine: use dma_chan_name() helper to get per-channel device name
Date: Fri, 04 Sep 2026 17:49:44 -0400 [thread overview]
Message-ID: <20260904-dma-chan_dev-rename-v3-2-685601b0b788@nxp.com> (raw)
In-Reply-To: <20260904-dma-chan_dev-rename-v3-0-685601b0b788@nxp.com>
From: Frank Li <Frank.Li@nxp.com>
Use the existing dma_chan_name() helper to obtain the per-channel device
name instead of open-coding: dev_name(chan->dev->device) /
dev_name(chan2dev())
Simplify the code and improve consistency.
No functional change intended.
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
drivers/dma/dma-jz4780.c | 2 +-
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 2 +-
drivers/dma/idma64.c | 2 +-
drivers/dma/loongson/loongson2-apb-dma.c | 2 +-
drivers/dma/mmp_pdma.c | 2 +-
drivers/dma/st_fdma.c | 2 +-
drivers/dma/stm32/stm32-dma3.c | 2 +-
drivers/dma/stm32/stm32-mdma.c | 2 +-
include/trace/events/tegra_apb_dma.h | 6 +++---
9 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index 6070dfdb7114c..194649811d02b 100644
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -760,7 +760,7 @@ static int jz4780_dma_alloc_chan_resources(struct dma_chan *chan)
{
struct jz4780_dma_chan *jzchan = to_jz4780_dma_chan(chan);
- jzchan->desc_pool = dma_pool_create(dev_name(&chan->dev->device),
+ jzchan->desc_pool = dma_pool_create(dma_chan_name(chan),
chan->device->dev,
JZ_DMA_DESC_BLOCK_SIZE,
PAGE_SIZE, 0);
diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
index 9c21a5479437d..7b50ba507cb02 100644
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -531,7 +531,7 @@ static int dma_chan_alloc_chan_resources(struct dma_chan *dchan)
}
/* LLI address must be aligned to a 64-byte boundary */
- chan->desc_pool = dma_pool_create(dev_name(chan2dev(chan)),
+ chan->desc_pool = dma_pool_create(dma_chan_name(dchan),
chan->chip->dev,
sizeof(struct axi_dma_lli),
64, 0);
diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c
index 5fcd1befc92da..6399fd5408be2 100644
--- a/drivers/dma/idma64.c
+++ b/drivers/dma/idma64.c
@@ -507,7 +507,7 @@ static int idma64_alloc_chan_resources(struct dma_chan *chan)
struct idma64_chan *idma64c = to_idma64_chan(chan);
/* Create a pool of consistent memory blocks for hardware descriptors */
- idma64c->pool = dma_pool_create(dev_name(chan2dev(chan)),
+ idma64c->pool = dma_pool_create(dma_chan_name(chan),
chan->device->dev,
sizeof(struct idma64_lli), 8, 0);
if (!idma64c->pool) {
diff --git a/drivers/dma/loongson/loongson2-apb-dma.c b/drivers/dma/loongson/loongson2-apb-dma.c
index aceb069e71fca..7c3d7c3273955 100644
--- a/drivers/dma/loongson/loongson2-apb-dma.c
+++ b/drivers/dma/loongson/loongson2-apb-dma.c
@@ -282,7 +282,7 @@ static int ls2x_dma_alloc_chan_resources(struct dma_chan *chan)
struct ls2x_dma_chan *lchan = to_ldma_chan(chan);
/* Create a pool of consistent memory blocks for hardware descriptors */
- lchan->pool = dma_pool_create(dev_name(chan2dev(chan)),
+ lchan->pool = dma_pool_create(dma_chan_name(chan),
chan->device->dev, PAGE_SIZE,
__alignof__(struct ls2x_dma_hw_desc), 0);
if (!lchan->pool) {
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index 386e85cd4882a..6b29e15b0616c 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -565,7 +565,7 @@ static int mmp_pdma_alloc_chan_resources(struct dma_chan *dchan)
if (chan->desc_pool)
return 1;
- chan->desc_pool = dma_pool_create(dev_name(&dchan->dev->device),
+ chan->desc_pool = dma_pool_create(dma_chan_name(dchan),
chan->dev,
sizeof(struct mmp_pdma_desc_sw),
__alignof__(struct mmp_pdma_desc_sw),
diff --git a/drivers/dma/st_fdma.c b/drivers/dma/st_fdma.c
index d9547017f3bd6..35dbff5f9f1ab 100644
--- a/drivers/dma/st_fdma.c
+++ b/drivers/dma/st_fdma.c
@@ -268,7 +268,7 @@ static int st_fdma_alloc_chan_res(struct dma_chan *chan)
struct st_fdma_chan *fchan = to_st_fdma_chan(chan);
/* Create the dma pool for descriptor allocation */
- fchan->node_pool = dma_pool_create(dev_name(&chan->dev->device),
+ fchan->node_pool = dma_pool_create(dma_chan_name(chan),
fchan->fdev->dev,
sizeof(struct st_fdma_hw_node),
__alignof__(struct st_fdma_hw_node),
diff --git a/drivers/dma/stm32/stm32-dma3.c b/drivers/dma/stm32/stm32-dma3.c
index 1ee1bd22703fb..6ee7a1435efb6 100644
--- a/drivers/dma/stm32/stm32-dma3.c
+++ b/drivers/dma/stm32/stm32-dma3.c
@@ -1126,7 +1126,7 @@ static int stm32_dma3_alloc_chan_resources(struct dma_chan *c)
goto err_put_sync;
}
- chan->lli_pool = dmam_pool_create(dev_name(&c->dev->device), c->device->dev,
+ chan->lli_pool = dmam_pool_create(dma_chan_name(c), c->device->dev,
sizeof(struct stm32_dma3_hwdesc),
__alignof__(struct stm32_dma3_hwdesc), SZ_64K);
if (!chan->lli_pool) {
diff --git a/drivers/dma/stm32/stm32-mdma.c b/drivers/dma/stm32/stm32-mdma.c
index e3bbdc9ee36ed..c274638e919c2 100644
--- a/drivers/dma/stm32/stm32-mdma.c
+++ b/drivers/dma/stm32/stm32-mdma.c
@@ -1484,7 +1484,7 @@ static int stm32_mdma_alloc_chan_resources(struct dma_chan *c)
struct stm32_mdma_device *dmadev = stm32_mdma_get_dev(chan);
int ret;
- chan->desc_pool = dmam_pool_create(dev_name(&c->dev->device),
+ chan->desc_pool = dmam_pool_create(dma_chan_name(c),
c->device->dev,
sizeof(struct stm32_mdma_hwdesc),
__alignof__(struct stm32_mdma_hwdesc),
diff --git a/include/trace/events/tegra_apb_dma.h b/include/trace/events/tegra_apb_dma.h
index 6d9f5075baa3e..c38117c127ef3 100644
--- a/include/trace/events/tegra_apb_dma.h
+++ b/include/trace/events/tegra_apb_dma.h
@@ -11,7 +11,7 @@ TRACE_EVENT(tegra_dma_tx_status,
TP_PROTO(struct dma_chan *dc, dma_cookie_t cookie, struct dma_tx_state *state),
TP_ARGS(dc, cookie, state),
TP_STRUCT__entry(
- __string(chan, dev_name(&dc->dev->device))
+ __string(chan, dma_chan_name(dc))
__field(dma_cookie_t, cookie)
__field(__u32, residue)
),
@@ -28,7 +28,7 @@ TRACE_EVENT(tegra_dma_complete_cb,
TP_PROTO(struct dma_chan *dc, int count, void *ptr),
TP_ARGS(dc, count, ptr),
TP_STRUCT__entry(
- __string(chan, dev_name(&dc->dev->device))
+ __string(chan, dma_chan_name(dc))
__field(int, count)
__field(void *, ptr)
),
@@ -45,7 +45,7 @@ TRACE_EVENT(tegra_dma_isr,
TP_PROTO(struct dma_chan *dc, int irq),
TP_ARGS(dc, irq),
TP_STRUCT__entry(
- __string(chan, dev_name(&dc->dev->device))
+ __string(chan, dma_chan_name(dc))
__field(int, irq)
),
TP_fast_assign(
--
2.43.0
next prev parent reply other threads:[~2026-09-04 21:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-04 21:49 [PATCH v3 0/4] dmaengine: rename dma_chan::dev to dma_chan::chan_dev for clarity Frank.Li
2026-09-04 21:49 ` [PATCH v3 1/4] dmaengine: vchan: add vchan_chan_name() to get channel device name Frank.Li
2026-09-04 21:49 ` Frank.Li [this message]
2026-09-05 7:55 ` [PATCH v3 2/4] dmaengine: use dma_chan_name() helper to get per-channel " Andy Shevchenko
2026-09-04 21:49 ` [PATCH v3 4/4] dmaengine: add union chan_dev for dma_chan::dev for clarity Frank.Li
2026-09-05 7:59 ` Andy Shevchenko
2026-09-05 8:00 ` [PATCH v3 0/4] dmaengine: rename dma_chan::dev to dma_chan::chan_dev " Andy Shevchenko
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