Commit 4ac33776 authored by Herbert Xu's avatar Herbert Xu

crypto: akcipher - Add ctx helpers with DMA alignment

This patch adds helpers to access the akcipher 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 1c799571
...@@ -33,15 +33,37 @@ static inline void *akcipher_request_ctx(struct akcipher_request *req) ...@@ -33,15 +33,37 @@ static inline void *akcipher_request_ctx(struct akcipher_request *req)
return req->__ctx; 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, static inline void akcipher_set_reqsize(struct crypto_akcipher *akcipher,
unsigned int reqsize) unsigned int reqsize)
{ {
akcipher->reqsize = 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) 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, static inline void akcipher_request_complete(struct akcipher_request *req,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment