diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2026-01-08 11:50:22 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2026-01-09 08:36:00 +0530 |
| commit | d7785661010e2fe113aec2500f988a8e73ac3e7b (patch) | |
| tree | 31b2e589f023932575fc58ef8819d33daaa230d3 /drivers | |
| parent | 107fdf0c4e944030bf544aea98e8ae8537914177 (diff) | |
dmaengine: sa11x0: use sg_nents_for_dma() helper
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/20260108105619.3513561-12-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/sa11x0-dma.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/dma/sa11x0-dma.c b/drivers/dma/sa11x0-dma.c index dc1a9a05252e..86f1d7461f56 100644 --- a/drivers/dma/sa11x0-dma.c +++ b/drivers/dma/sa11x0-dma.c @@ -526,7 +526,7 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg( struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan); struct sa11x0_dma_desc *txd; struct scatterlist *sgent; - unsigned i, j = sglen; + unsigned int i, j; size_t size = 0; /* SA11x0 channels can only operate in their native direction */ @@ -542,10 +542,7 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg( for_each_sg(sg, sgent, sglen, i) { dma_addr_t addr = sg_dma_address(sgent); - unsigned int len = sg_dma_len(sgent); - if (len > DMA_MAX_SIZE) - j += DIV_ROUND_UP(len, DMA_MAX_SIZE & ~DMA_ALIGN) - 1; if (addr & DMA_ALIGN) { dev_dbg(chan->device->dev, "vchan %p: bad buffer alignment: %pad\n", &c->vc, &addr); @@ -553,6 +550,7 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg( } } + j = sg_nents_for_dma(sg, sglen, DMA_MAX_SIZE & ~DMA_ALIGN); txd = kzalloc(struct_size(txd, sg, j), GFP_ATOMIC); if (!txd) { dev_dbg(chan->device->dev, "vchan %p: kzalloc failed\n", &c->vc); |