Commit b5f755fb authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: hash - Add ctx helpers with DMA alignment 



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

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent f8e4d1d0

include/crypto/internal/hash.h

+22 −0
Original line number Diff line number Diff line
@@ -140,6 +140,11 @@ static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm) 
	return crypto_tfm_ctx(crypto_ahash_tfm(tfm));

}



static inline void *crypto_ahash_ctx_dma(struct crypto_ahash *tfm)

{

	return crypto_tfm_ctx_dma(crypto_ahash_tfm(tfm));

}



static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg)

{

	return container_of(__crypto_hash_alg_common(alg), struct ahash_alg,
@@ -152,6 +157,13 @@ static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm, 
	tfm->reqsize = reqsize;

}



static inline void crypto_ahash_set_reqsize_dma(struct crypto_ahash *ahash,

						unsigned int reqsize)

{

	reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);

	ahash->reqsize = reqsize;

}



static inline struct crypto_instance *ahash_crypto_instance(

	struct ahash_instance *inst)

{
@@ -175,6 +187,16 @@ static inline void *ahash_instance_ctx(struct ahash_instance *inst) 
	return crypto_instance_ctx(ahash_crypto_instance(inst));

}



static inline void *ahash_request_ctx_dma(struct ahash_request *req)

{

	unsigned int align = crypto_dma_align();



	if (align <= crypto_tfm_ctx_alignment())

		align = 1;



	return PTR_ALIGN(ahash_request_ctx(req), align);

}



static inline void ahash_request_complete(struct ahash_request *req, int err)

{

	req->base.complete(&req->base, err);