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Commit f2aefdab authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: api - Add crypto_type_has_alg helper 



This patch adds the helper crypto_type_has_alg which is meant
to replace crypto_has_alg for new-style crypto types.  Rather
than hard-coding type/mask information they're now retrieved
from the crypto_type object.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 1aaa753d

crypto/algapi.c

+15 −0
Original line number Original line Diff line number Diff line
@@ -987,6 +987,21 @@ unsigned int crypto_alg_extsize(struct crypto_alg *alg) 
}

}

EXPORT_SYMBOL_GPL(crypto_alg_extsize);

EXPORT_SYMBOL_GPL(crypto_alg_extsize);





int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,

			u32 type, u32 mask)

{

	int ret = 0;

	struct crypto_alg *alg = crypto_find_alg(name, frontend, type, mask);



	if (!IS_ERR(alg)) {

		crypto_mod_put(alg);

		ret = 1;

	}



	return ret;

}

EXPORT_SYMBOL_GPL(crypto_type_has_alg);



static int __init crypto_algapi_init(void)

static int __init crypto_algapi_init(void)

{

{

	crypto_init_proc();

	crypto_init_proc();

crypto/internal.h

+3 −0
Original line number Original line Diff line number Diff line
@@ -104,6 +104,9 @@ int crypto_probing_notify(unsigned long val, void *v); 




unsigned int crypto_alg_extsize(struct crypto_alg *alg);

unsigned int crypto_alg_extsize(struct crypto_alg *alg);





int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,

			u32 type, u32 mask);



static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)

static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)

{

{

	atomic_inc(&alg->cra_refcnt);

	atomic_inc(&alg->cra_refcnt);