crypto: api - Add new template create function

This patch introduces the template->create function intended
to replace the existing alloc function.  The intention is for
create to handle the registration directly, whereas currently
the caller of alloc has to handle the registration.

This allows type-specific code to be run prior to registration.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

2 files changed, 6 insertions, 0 deletions

diff --git a/crypto/algboss.c b/crypto/algboss.c
index 9908dd8..412241c 100644
--- a/crypto/algboss.c
+++ b/crypto/algboss.c
@@ -68,6 +68,11 @@ static int cryptomgr_probe(void *data)
 		goto err;
 
 	do {
+		if (tmpl->create) {
+			err = tmpl->create(tmpl, param->tb);
+			continue;
+		}
+
 		inst = tmpl->alloc(param->tb);
 		if (IS_ERR(inst))
 			err = PTR_ERR(inst);
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 0105454..ce010a3 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -52,6 +52,7 @@ struct crypto_template {
 
 	struct crypto_instance *(*alloc)(struct rtattr **tb);
 	void (*free)(struct crypto_instance *inst);
+	int (*create)(struct crypto_template *tmpl, struct rtattr **tb);
 
 	char name[CRYPTO_MAX_ALG_NAME];
 };