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crypto: api - Add helpers to manage request flags

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

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2025-04-07 18:02:51 +08:00
parent b93336cd76
commit 1451e3e561
2 changed files with 29 additions and 0 deletions
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5
include/crypto/algapi.h
View file

@ -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 */

24
include/linux/crypto.h
View file

@ -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 */