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Commit 4b004346 authored by Mark Brown's avatar Mark Brown Committed by Herbert Xu
Browse files

crypto: Add bulk algorithm registration interface 



Hardware crypto engines frequently need to register a selection of
different algorithms with the core. Simplify their code slightly,
especially the error handling, by providing functions to register a
number of algorithms in a single call.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent b85a088f

crypto/algapi.c

+35 −0
Original line number Diff line number Diff line
@@ -405,6 +405,41 @@ int crypto_unregister_alg(struct crypto_alg *alg) 
}

EXPORT_SYMBOL_GPL(crypto_unregister_alg);



int crypto_register_algs(struct crypto_alg *algs, int count)

{

	int i, ret;



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

		ret = crypto_register_alg(&algs[i]);

		if (ret)

			goto err;

	}



	return 0;



err:

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

		crypto_unregister_alg(&algs[i]);



	return ret;

}

EXPORT_SYMBOL_GPL(crypto_register_algs);



int crypto_unregister_algs(struct crypto_alg *algs, int count)

{

	int i, ret;



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

		ret = crypto_unregister_alg(&algs[i]);

		if (ret)

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

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

	}



	return 0;

}

EXPORT_SYMBOL_GPL(crypto_unregister_algs);



int crypto_register_template(struct crypto_template *tmpl)

{

	struct crypto_template *q;

include/linux/crypto.h

+2 −0
Original line number Diff line number Diff line
@@ -314,6 +314,8 @@ struct crypto_alg { 
 */

int crypto_register_alg(struct crypto_alg *alg);

int crypto_unregister_alg(struct crypto_alg *alg);

int crypto_register_algs(struct crypto_alg *algs, int count);

int crypto_unregister_algs(struct crypto_alg *algs, int count);



/*

 * Algorithm query interface.