Commit 1451e3e5 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: api - Add helpers to manage request flags 



Add helpers so that the ON_STACK request flag management is not
duplicated all over the place.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent b93336cd

include/crypto/algapi.h

+5 −0
Original line number Diff line number Diff line
@@ -272,4 +272,9 @@ static inline bool crypto_tfm_req_chain(struct crypto_tfm *tfm) 
	return tfm->__crt_alg->cra_flags & CRYPTO_ALG_REQ_CHAIN;

}



static inline u32 crypto_request_flags(struct crypto_async_request *req)

{

	return req->flags & ~CRYPTO_TFM_REQ_ON_STACK;

}



#endif	/* _CRYPTO_ALGAPI_H */

include/linux/crypto.h

+24 −0
Original line number Diff line number Diff line
@@ -476,5 +476,29 @@ static inline bool crypto_tfm_is_async(struct crypto_tfm *tfm) 
	return tfm->__crt_alg->cra_flags & CRYPTO_ALG_ASYNC;

}



static inline bool crypto_req_on_stack(struct crypto_async_request *req)

{

	return req->flags & CRYPTO_TFM_REQ_ON_STACK;

}



static inline void crypto_request_set_callback(

	struct crypto_async_request *req, u32 flags,

	crypto_completion_t compl, void *data)

{

	u32 keep = CRYPTO_TFM_REQ_ON_STACK;



	req->complete = compl;

	req->data = data;

	req->flags &= keep;

	req->flags |= flags & ~keep;

}



static inline void crypto_request_set_tfm(struct crypto_async_request *req,

					  struct crypto_tfm *tfm)

{

	req->tfm = tfm;

	req->flags &= ~CRYPTO_TFM_REQ_ON_STACK;

}



#endif	/* _LINUX_CRYPTO_H */