diff options
| author | Thorsten Blum <blum@kernel.org> | 2026-10-11 15:15:56 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2026-10-16 20:24:33 +0800 |
| commit | c577e8d88783aa1c6e337dbc37fc739cfd40d93e (patch) | |
| tree | 86e8dbba0845adb71b8fc1815e36f2645b83d48a | |
| parent | fed9c1930e1dcec978ff323a6ea9dd783a63b8b3 (diff) | |
| download | linux-next-c577e8d88783aa1c6e337dbc37fc739cfd40d93e.tar.gz linux-next-c577e8d88783aa1c6e337dbc37fc739cfd40d93e.zip | |
crypto: atmel-tdes - use separate DMA scatterlists
Use two separate input and output scatterlists instead of an array.
Also use DMA_SLAVE_BUSWIDTH_4_BYTES directly and drop the now-unused
addr_width variable.
Signed-off-by: Thorsten Blum <blum@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/atmel-tdes.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c index f084fda42423..b2fca4baee2f 100644 --- a/drivers/crypto/atmel-tdes.c +++ b/drivers/crypto/atmel-tdes.c @@ -372,37 +372,32 @@ static int atmel_tdes_crypt_dma(struct atmel_tdes_dev *dd, dma_addr_t dma_addr_in, dma_addr_t dma_addr_out) { - struct scatterlist sg[2]; - struct dma_async_tx_descriptor *in_desc, *out_desc; - enum dma_slave_buswidth addr_width; + struct scatterlist sg_in, sg_out; + struct dma_async_tx_descriptor *in_desc, *out_desc; - addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - - dd->dma_lch_in.dma_conf.dst_addr_width = addr_width; - dd->dma_lch_out.dma_conf.src_addr_width = addr_width; + dd->dma_lch_in.dma_conf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + dd->dma_lch_out.dma_conf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; dmaengine_slave_config(dd->dma_lch_in.chan, &dd->dma_lch_in.dma_conf); dmaengine_slave_config(dd->dma_lch_out.chan, &dd->dma_lch_out.dma_conf); dd->flags |= TDES_FLAGS_DMA; - sg_init_table(&sg[0], 1); - sg_dma_address(&sg[0]) = dma_addr_in; - sg_dma_len(&sg[0]) = dd->dma_size; + sg_init_table(&sg_in, 1); + sg_dma_address(&sg_in) = dma_addr_in; + sg_dma_len(&sg_in) = dd->dma_size; - sg_init_table(&sg[1], 1); - sg_dma_address(&sg[1]) = dma_addr_out; - sg_dma_len(&sg[1]) = dd->dma_size; + sg_init_table(&sg_out, 1); + sg_dma_address(&sg_out) = dma_addr_out; + sg_dma_len(&sg_out) = dd->dma_size; - in_desc = dmaengine_prep_slave_sg(dd->dma_lch_in.chan, &sg[0], - 1, DMA_MEM_TO_DEV, - DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + in_desc = dmaengine_prep_slave_sg(dd->dma_lch_in.chan, &sg_in, 1, DMA_MEM_TO_DEV, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!in_desc) return -EINVAL; - out_desc = dmaengine_prep_slave_sg(dd->dma_lch_out.chan, &sg[1], - 1, DMA_DEV_TO_MEM, - DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + out_desc = dmaengine_prep_slave_sg(dd->dma_lch_out.chan, &sg_out, 1, DMA_DEV_TO_MEM, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!out_desc) return -EINVAL; |