[CRYPTO] api: Add common instance initialisation code
This patch adds the helpers crypto_get_attr_alg and crypto_alloc_instance
which can be used by simple one-argument templates like hmac to process
input parameters and allocate instances.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index b20f4bd..1a598f8 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -51,6 +51,11 @@
void crypto_drop_spawn(struct crypto_spawn *spawn);
struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn);
+struct crypto_alg *crypto_get_attr_alg(void *param, unsigned int len,
+ u32 type, u32 mask);
+struct crypto_instance *crypto_alloc_instance(const char *name,
+ struct crypto_alg *alg);
+
static inline void *crypto_instance_ctx(struct crypto_instance *inst)
{
return inst->__ctx;