[PATCH v5 13/13] dmaengine: xilinx: xdma: use sg_nents_for_dma() helper
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: 2026-01-08 10:57:06
Also in:
dmaengine, linux-arm-msm, lkml
Subsystem:
dma generic offload engine subsystem, the rest, xilinx xdma driver · Maintainers:
Vinod Koul, Linus Torvalds, Lizhi Hou, Brian Xu, Raj Kumar Rampelli
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> --- drivers/dma/xilinx/xdma.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/dma/xilinx/xdma.c b/drivers/dma/xilinx/xdma.c
index 5ecf8223c112..118199a04902 100644
--- a/drivers/dma/xilinx/xdma.c
+++ b/drivers/dma/xilinx/xdma.c@@ -605,13 +605,11 @@ xdma_prep_device_sg(struct dma_chan *chan, struct scatterlist *sgl, struct xdma_chan *xdma_chan = to_xdma_chan(chan); struct dma_async_tx_descriptor *tx_desc; struct xdma_desc *sw_desc; - u32 desc_num = 0, i; u64 addr, dev_addr, *src, *dst; + u32 desc_num, i; struct scatterlist *sg; - for_each_sg(sgl, sg, sg_len, i) - desc_num += DIV_ROUND_UP(sg_dma_len(sg), XDMA_DESC_BLEN_MAX); - + desc_num = sg_nents_for_dma(sgl, sg_len, XDMA_DESC_BLEN_MAX); sw_desc = xdma_alloc_desc(xdma_chan, desc_num, false); if (!sw_desc) return NULL;
--
2.50.1