Instead of open coded variant let's use recently introduced helper.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/dma/imx-dma.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index ab0fb80..a3cb4fe 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -813,8 +813,6 @@ static struct dma_async_tx_descriptor *imxdma_prep_slave_sg(
unsigned long flags, void *context)
{
struct imxdma_channel *imxdmac = to_imxdma_chan(chan);
- struct scatterlist *sg;
- int i, dma_length = 0;
struct imxdma_desc *desc;
if (list_empty(&imxdmac->ld_free) ||
@@ -823,10 +821,6 @@ static struct dma_async_tx_descriptor *imxdma_prep_slave_sg(
desc = list_first_entry(&imxdmac->ld_free, struct imxdma_desc, node);
- for_each_sg(sgl, sg, sg_len, i) {
- dma_length += sg_dma_len(sg);
- }
-
switch (imxdmac->word_size) {
case DMA_SLAVE_BUSWIDTH_4_BYTES:
if (sg_dma_len(sgl) & 3 || sgl->dma_address & 3)
@@ -845,7 +839,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_slave_sg(
desc->type = IMXDMA_DESC_SLAVE_SG;
desc->sg = sgl;
desc->sgcount = sg_len;
- desc->len = dma_length;
+ desc->len = sg_nents_for_dma(sgl, sg_len, SIZE_MAX);
desc->direction = direction;
if (direction == DMA_DEV_TO_MEM) {
desc->src = imxdmac->per_address;
--
2.9.3
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