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Commit 50fc3e8d authored by Jussi Kivilinna's avatar Jussi Kivilinna Committed by Herbert Xu
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crypto: add crypto_[un]register_shashes for [un]registering multiple shash entries at once 



Add crypto_[un]register_shashes() to allow simplifying init/exit code of shash
crypto modules that register multiple algorithms.

Signed-off-by: default avatarJussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 8fc229a5

crypto/shash.c

+36 −0
Original line number Diff line number Diff line
@@ -629,6 +629,42 @@ int crypto_unregister_shash(struct shash_alg *alg) 
}

EXPORT_SYMBOL_GPL(crypto_unregister_shash);



int crypto_register_shashes(struct shash_alg *algs, int count)

{

	int i, ret;



	for (i = 0; i < count; i++) {

		ret = crypto_register_shash(&algs[i]);

		if (ret)

			goto err;

	}



	return 0;



err:

	for (--i; i >= 0; --i)

		crypto_unregister_shash(&algs[i]);



	return ret;

}

EXPORT_SYMBOL_GPL(crypto_register_shashes);



int crypto_unregister_shashes(struct shash_alg *algs, int count)

{

	int i, ret;



	for (i = count - 1; i >= 0; --i) {

		ret = crypto_unregister_shash(&algs[i]);

		if (ret)

			pr_err("Failed to unregister %s %s: %d\n",

			       algs[i].base.cra_driver_name,

			       algs[i].base.cra_name, ret);

	}



	return 0;

}

EXPORT_SYMBOL_GPL(crypto_unregister_shashes);



int shash_register_instance(struct crypto_template *tmpl,

			    struct shash_instance *inst)

{

include/crypto/internal/hash.h

+2 −0
Original line number Diff line number Diff line
@@ -83,6 +83,8 @@ struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask); 


int crypto_register_shash(struct shash_alg *alg);

int crypto_unregister_shash(struct shash_alg *alg);

int crypto_register_shashes(struct shash_alg *algs, int count);

int crypto_unregister_shashes(struct shash_alg *algs, int count);

int shash_register_instance(struct crypto_template *tmpl,

			    struct shash_instance *inst);

void shash_free_instance(struct crypto_instance *inst);