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dmaengine: use dma_chan_name() helper to get per-channel device name

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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, improve consistency and reduce line wrapping where
possible.

No functional change intended.

Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Amelie Delaunay <amelie.delaunay@foss.st.com> # For STM32
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260909-dma-chan_dev-rename-v4-2-d8fb6892a70f@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Frank Li 2026-09-09 12:22:29 -04:00 committed by Vinod Koul
parent 75d8640d7f
commit 76574306c1
9 changed files with 11 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/dma/dma-jz4780.c
View File

@ -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);

3
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
View File

@ -534,8 +534,7 @@ 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->chip->dev,
chan->desc_pool = dma_pool_create(dma_chan_name(dchan), chan->chip->dev,
sizeof(struct axi_dma_lli),
64, 0);
if (!chan->desc_pool) {

3
drivers/dma/idma64.c
View File

@ -507,8 +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)),
chan->device->dev,
idma64c->pool = dma_pool_create(dma_chan_name(chan), chan->device->dev,
sizeof(struct idma64_lli), 8, 0);
if (!idma64c->pool) {
dev_err(chan2dev(chan), "No memory for descriptors\n");

2
drivers/dma/loongson/loongson2-apb-dma.c
View File

@ -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) {

3
drivers/dma/mmp_pdma.c
View File

@ -565,8 +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->dev,
chan->desc_pool = dma_pool_create(dma_chan_name(dchan), chan->dev,
sizeof(struct mmp_pdma_desc_sw),
__alignof__(struct mmp_pdma_desc_sw),
0);

2
drivers/dma/st_fdma.c
View File

@ -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),

2
drivers/dma/stm32/stm32-dma3.c
View File

@ -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) {

3
drivers/dma/stm32/stm32-mdma.c
View File

@ -1484,8 +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),
c->device->dev,
chan->desc_pool = dmam_pool_create(dma_chan_name(c), c->device->dev,
sizeof(struct stm32_mdma_hwdesc),
__alignof__(struct stm32_mdma_hwdesc),
0);

6
include/trace/events/tegra_apb_dma.h
View File

@ -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(