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dmaengine: k3dma: use sg_nents_for_dma() helper

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Instead of open coded variant let's use recently introduced helper.

Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260108105619.3513561-7-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Andy Shevchenko 2026-01-08 11:50:17 +01:00 • committed by Vinod Koul
parent 5d6ceb254f
commit 3fc49d21f3
1 changed files with 2 additions and 7 deletions
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9
drivers/dma/k3dma.c
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@ -536,19 +536,14 @@ static struct dma_async_tx_descriptor *k3_dma_prep_slave_sg(
size_t len, avail, total = 0;
struct scatterlist *sg;
dma_addr_t addr, src = 0, dst = 0;
int num = sglen, i;
int num, i;
if (sgl == NULL)
return NULL;
c->cyclic = 0;
for_each_sg(sgl, sg, sglen, i) {
avail = sg_dma_len(sg);
if (avail > DMA_MAX_SIZE)
num += DIV_ROUND_UP(avail, DMA_MAX_SIZE) - 1;
}
num = sg_nents_for_dma(sgl, sglen, DMA_MAX_SIZE);
ds = k3_dma_alloc_desc_resource(num, chan);
if (!ds)
return NULL;