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Commit 8d18e34c authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: hash - Add crypto_has_ahash helper 



This patch adds the helper crypto_has_ahash which should replace
crypto_has_hash.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent f2aefdab

crypto/ahash.c

+6 −0
Original line number Diff line number Diff line
@@ -542,6 +542,12 @@ struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type, 
}

EXPORT_SYMBOL_GPL(crypto_alloc_ahash);



int crypto_has_ahash(const char *alg_name, u32 type, u32 mask)

{

	return crypto_type_has_alg(alg_name, &crypto_ahash_type, type, mask);

}

EXPORT_SYMBOL_GPL(crypto_has_ahash);



static int ahash_prepare_alg(struct ahash_alg *alg)

{

	struct crypto_alg *base = &alg->halg.base;

include/crypto/hash.h

+12 −0
Original line number Diff line number Diff line
@@ -260,6 +260,18 @@ static inline void crypto_free_ahash(struct crypto_ahash *tfm) 
	crypto_destroy_tfm(tfm, crypto_ahash_tfm(tfm));

}



/**

 * crypto_has_ahash() - Search for the availability of an ahash.

 * @alg_name: is the cra_name / name or cra_driver_name / driver name of the

 *	      ahash

 * @type: specifies the type of the ahash

 * @mask: specifies the mask for the ahash

 *

 * Return: true when the ahash is known to the kernel crypto API; false

 *	   otherwise

 */

int crypto_has_ahash(const char *alg_name, u32 type, u32 mask);



static inline unsigned int crypto_ahash_alignmask(

	struct crypto_ahash *tfm)

{