From 3edc28c9ade06410a7f435331f40b3e71b19abb4 Mon Sep 17 00:00:00 2001 From: Thorsten Blum Date: Mon, 6 Jul 2026 17:04:05 +0200 Subject: [PATCH] crypto: atmel-tdes - simplify fast path in crypt_start Fold all fast path conditions into a single boolean expression and drop any redundant checks. Signed-off-by: Thorsten Blum Signed-off-by: Herbert Xu --- drivers/crypto/atmel-tdes.c | 24 +++++++++--------------- 1 file changed, 9 insertions(+), 15 deletions(-) diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c index d380f6741a2c..d9cc4f657481 100644 --- a/drivers/crypto/atmel-tdes.c +++ b/drivers/crypto/atmel-tdes.c @@ -451,25 +451,19 @@ static int atmel_tdes_crypt_dma(struct atmel_tdes_dev *dd, static int atmel_tdes_crypt_start(struct atmel_tdes_dev *dd) { - int err, fast = 0, in, out; + bool fast; + int err; size_t count; dma_addr_t addr_in, addr_out; - if ((!dd->in_offset) && (!dd->out_offset)) { - /* check for alignment */ - in = IS_ALIGNED((u32)dd->in_sg->offset, sizeof(u32)) && - IS_ALIGNED(dd->in_sg->length, dd->ctx->block_size); - out = IS_ALIGNED((u32)dd->out_sg->offset, sizeof(u32)) && - IS_ALIGNED(dd->out_sg->length, dd->ctx->block_size); - fast = in && out; + fast = !dd->in_offset && !dd->out_offset && + dd->in_sg->length == dd->out_sg->length && + IS_ALIGNED(dd->in_sg->offset, sizeof(u32)) && + IS_ALIGNED(dd->out_sg->offset, sizeof(u32)) && + IS_ALIGNED(dd->in_sg->length, dd->ctx->block_size); - if (dd->in_sg->length != dd->out_sg->length) - fast = 0; - } - - - if (fast) { - count = min_t(size_t, dd->total, dd->in_sg->length); + if (fast) { + count = min(dd->total, dd->in_sg->length); err = dma_map_sg(dd->dev, dd->in_sg, 1, DMA_TO_DEVICE); if (!err) {