crypto: algapi - remove obsoleted instance creation helpers

Remove lots of helper functions that were previously used for
instantiating crypto templates, but are now unused:

- crypto_get_attr_alg() and similar functions looked up an inner
  algorithm directly from a template parameter.  These were replaced
  with getting the algorithm's name, then calling crypto_grab_*().

- crypto_init_spawn2() and similar functions initialized a spawn, given
  an algorithm.  Similarly, these were replaced with crypto_grab_*().

- crypto_alloc_instance() and similar functions allocated an instance
  with a single spawn, given the inner algorithm.  These aren't useful
  anymore since crypto_grab_*() need the instance allocated first.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

2 files changed, 0 insertions, 53 deletions

diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index bbf85a854a42..224c72743cce 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -113,12 +113,8 @@ void crypto_unregister_instance(struct crypto_instance *inst);
 
 int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
 		      struct crypto_instance *inst, u32 mask);
-int crypto_init_spawn2(struct crypto_spawn *spawn, struct crypto_alg *alg,
-		       struct crypto_instance *inst,
-		       const struct crypto_type *frontend);
 int crypto_grab_spawn(struct crypto_spawn *spawn, struct crypto_instance *inst,
 		      const char *name, u32 type, u32 mask);
-
 void crypto_drop_spawn(struct crypto_spawn *spawn);
 struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
 				    u32 mask);
@@ -127,21 +123,9 @@ void *crypto_spawn_tfm2(struct crypto_spawn *spawn);
 struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb);
 int crypto_check_attr_type(struct rtattr **tb, u32 type);
 const char *crypto_attr_alg_name(struct rtattr *rta);
-struct crypto_alg *crypto_attr_alg2(struct rtattr *rta,
-				    const struct crypto_type *frontend,
-				    u32 type, u32 mask);
-
-static inline struct crypto_alg *crypto_attr_alg(struct rtattr *rta,
-						 u32 type, u32 mask)
-{
-	return crypto_attr_alg2(rta, NULL, type, mask);
-}
-
 int crypto_attr_u32(struct rtattr *rta, u32 *num);
 int crypto_inst_setname(struct crypto_instance *inst, const char *name,
 			struct crypto_alg *alg);
-void *crypto_alloc_instance(const char *name, struct crypto_alg *alg,
-			    unsigned int head);
 
 void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen);
 int crypto_enqueue_request(struct crypto_queue *queue,
@@ -254,12 +238,6 @@ static inline struct crypto_async_request *crypto_get_backlog(
 	       container_of(queue->backlog, struct crypto_async_request, list);
 }
 
-static inline struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb,
-						     u32 type, u32 mask)
-{
-	return crypto_attr_alg(tb[1], type, mask);
-}
-
 static inline int crypto_requires_off(u32 type, u32 mask, u32 off)
 {
 	return (type ^ off) & mask & off;
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index e1024fa0032f..79e561abef61 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -87,7 +87,6 @@ int crypto_register_ahashes(struct ahash_alg *algs, int count);
 void crypto_unregister_ahashes(struct ahash_alg *algs, int count);
 int ahash_register_instance(struct crypto_template *tmpl,
 			    struct ahash_instance *inst);
-void ahash_free_instance(struct crypto_instance *inst);
 
 int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
 		    unsigned int keylen);
@@ -105,10 +104,6 @@ static inline bool crypto_shash_alg_needs_key(struct shash_alg *alg)
 
 bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg);
 
-int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,
-			    struct hash_alg_common *alg,
-			    struct crypto_instance *inst);
-
 int crypto_grab_ahash(struct crypto_ahash_spawn *spawn,
 		      struct crypto_instance *inst,
 		      const char *name, u32 type, u32 mask);
@@ -124,8 +119,6 @@ static inline struct hash_alg_common *crypto_spawn_ahash_alg(
 	return __crypto_hash_alg_common(spawn->base.alg);
 }
 
-struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
-
 int crypto_register_shash(struct shash_alg *alg);
 void crypto_unregister_shash(struct shash_alg *alg);
 int crypto_register_shashes(struct shash_alg *algs, int count);
@@ -134,10 +127,6 @@ int shash_register_instance(struct crypto_template *tmpl,
 			    struct shash_instance *inst);
 void shash_free_instance(struct crypto_instance *inst);
 
-int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
-			    struct shash_alg *alg,
-			    struct crypto_instance *inst);
-
 int crypto_grab_shash(struct crypto_shash_spawn *spawn,
 		      struct crypto_instance *inst,
 		      const char *name, u32 type, u32 mask);
@@ -153,8 +142,6 @@ static inline struct shash_alg *crypto_spawn_shash_alg(
 	return __crypto_shash_alg(spawn->base.alg);
 }
 
-struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
-
 int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
 int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);
 int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
@@ -195,17 +182,6 @@ static inline void *ahash_instance_ctx(struct ahash_instance *inst)
 	return crypto_instance_ctx(ahash_crypto_instance(inst));
 }
 
-static inline unsigned int ahash_instance_headroom(void)
-{
-	return sizeof(struct ahash_alg) - sizeof(struct crypto_alg);
-}
-
-static inline struct ahash_instance *ahash_alloc_instance(
-	const char *name, struct crypto_alg *alg)
-{
-	return crypto_alloc_instance(name, alg, ahash_instance_headroom());
-}
-
 static inline void ahash_request_complete(struct ahash_request *req, int err)
 {
 	req->base.complete(&req->base, err);
@@ -262,13 +238,6 @@ static inline void *shash_instance_ctx(struct shash_instance *inst)
 	return crypto_instance_ctx(shash_crypto_instance(inst));
 }
 
-static inline struct shash_instance *shash_alloc_instance(
-	const char *name, struct crypto_alg *alg)
-{
-	return crypto_alloc_instance(name, alg,
-				     sizeof(struct shash_alg) - sizeof(*alg));
-}
-
 static inline struct crypto_shash *crypto_spawn_shash(
 	struct crypto_shash_spawn *spawn)
 {