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crypto: akcipher - Add ctx helpers with DMA alignment

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This patch adds helpers to access the akcipher context structure and
request context structure with an added alignment for DMA access.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2022-11-25 12:36:41 +08:00
parent 1c79957197
commit 4ac3377645
1 changed files with 23 additions and 1 deletions
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24
include/crypto/internal/akcipher.h
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@ -33,15 +33,37 @@ static inline void *akcipher_request_ctx(struct akcipher_request *req)
return req->__ctx;
}
static inline void *akcipher_request_ctx_dma(struct akcipher_request *req)
{
unsigned int align = crypto_dma_align();
if (align <= crypto_tfm_ctx_alignment())
align = 1;
return PTR_ALIGN(akcipher_request_ctx(req), align);
}
static inline void akcipher_set_reqsize(struct crypto_akcipher *akcipher,
unsigned int reqsize)
{
akcipher->reqsize = reqsize;
}
static inline void akcipher_set_reqsize_dma(struct crypto_akcipher *akcipher,
unsigned int reqsize)
{
reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);
akcipher->reqsize = reqsize;
}
static inline void *akcipher_tfm_ctx(struct crypto_akcipher *tfm)
{
return tfm->base.__crt_ctx;
return crypto_tfm_ctx(&tfm->base);
}
static inline void *akcipher_tfm_ctx_dma(struct crypto_akcipher *tfm)
{
return crypto_tfm_ctx_dma(&tfm->base);
}
static inline void akcipher_request_complete(struct akcipher_request *req,