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crypto: atmel-tdes - simplify fast path in crypt_start

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Fold all fast path conditions into a single boolean expression and drop
any redundant checks.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Thorsten Blum 2026-07-06 17:04:05 +02:00 committed by Herbert Xu
parent 9ad6f33788
commit 3edc28c9ad
1 changed files with 9 additions and 15 deletions
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24
drivers/crypto/atmel-tdes.c
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@ -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) {