Commit a5a49249 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: kpp - Add ctx helpers with DMA alignment 



This patch adds helpers to access the kpp 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 4ac33776

include/crypto/internal/kpp.h

+23 −1
Original line number Diff line number Diff line
@@ -50,15 +50,37 @@ static inline void *kpp_request_ctx(struct kpp_request *req) 
	return req->__ctx;

}



static inline void *kpp_request_ctx_dma(struct kpp_request *req)

{

	unsigned int align = crypto_dma_align();



	if (align <= crypto_tfm_ctx_alignment())

		align = 1;



	return PTR_ALIGN(kpp_request_ctx(req), align);

}



static inline void kpp_set_reqsize(struct crypto_kpp *kpp,

				   unsigned int reqsize)

{

	kpp->reqsize = reqsize;

}



static inline void kpp_set_reqsize_dma(struct crypto_kpp *kpp,

				       unsigned int reqsize)

{

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

	kpp->reqsize = reqsize;

}



static inline void *kpp_tfm_ctx(struct crypto_kpp *tfm)

{

	return tfm->base.__crt_ctx;

	return crypto_tfm_ctx(&tfm->base);

}



static inline void *kpp_tfm_ctx_dma(struct crypto_kpp *tfm)

{

	return crypto_tfm_ctx_dma(&tfm->base);

}



static inline void kpp_request_complete(struct kpp_request *req, int err)