[PATCH v5 02/13] dmaengine: altera-msgdma: use sg_nents_for_dma() helper
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: 2026-01-08 10:56:46
Also in:
dmaengine, linux-arm-msm, lkml
Subsystem:
altera msgdma ip core driver, dma generic offload engine subsystem, the rest · Maintainers:
Olivier Dautricourt, Vinod Koul, Linus Torvalds
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/altera-msgdma.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/dma/altera-msgdma.c b/drivers/dma/altera-msgdma.c
index a203fdd84950..50534a6045a0 100644
--- a/drivers/dma/altera-msgdma.c
+++ b/drivers/dma/altera-msgdma.c@@ -396,13 +396,11 @@ msgdma_prep_slave_sg(struct dma_chan *dchan, struct scatterlist *sgl, void *desc = NULL; size_t len, avail; dma_addr_t dma_dst, dma_src; - u32 desc_cnt = 0, i; - struct scatterlist *sg; + u32 desc_cnt; u32 stride; unsigned long irqflags; - for_each_sg(sgl, sg, sg_len, i) - desc_cnt += DIV_ROUND_UP(sg_dma_len(sg), MSGDMA_MAX_TRANS_LEN); + desc_cnt = sg_nents_for_dma(sgl, sg_len, MSGDMA_MAX_TRANS_LEN); spin_lock_irqsave(&mdev->lock, irqflags); if (desc_cnt > mdev->desc_free_cnt) {
--
2.50.1