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crypto: talitos - fix hash result for VMAP_STACK

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When VMAP_STACK is selected, stack cannot be DMA-mapped.
Therefore, the hash result has to be DMA-mapped in the request
context and copied into areq->result at completion.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christophe Leroy 2019-09-10 06:04:14 +00:00 committed by Herbert Xu
parent 5b0fe95523
commit 7a6eda5b8d
1 changed files with 5 additions and 1 deletions
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6
drivers/crypto/talitos.c
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@ -1704,6 +1704,7 @@ static void common_nonsnoop_hash_unmap(struct device *dev,
struct ahash_request *areq)
{
struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
struct talitos_desc *desc = &edesc->desc;
@ -1714,6 +1715,9 @@ static void common_nonsnoop_hash_unmap(struct device *dev,
if (desc->next_desc &&
desc->ptr[5].ptr != desc2->ptr[5].ptr)
unmap_single_talitos_ptr(dev, &desc2->ptr[5], DMA_FROM_DEVICE);
if (req_ctx->last)
memcpy(areq->result, req_ctx->hw_context,
crypto_ahash_digestsize(tfm));
if (req_ctx->psrc)
talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL, 0, 0);
@ -1845,7 +1849,7 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
if (req_ctx->last)
map_single_talitos_ptr(dev, &desc->ptr[5],
crypto_ahash_digestsize(tfm),
areq->result, DMA_FROM_DEVICE);
req_ctx->hw_context, DMA_FROM_DEVICE);
else
map_single_talitos_ptr_nosync(dev, &desc->ptr[5],
req_ctx->hw_context_size,