From: Eric Biggers <ebiggers@xxxxxxxxxx>
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_spawn() 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@xxxxxxxxxx>
---
crypto/ahash.c | 25 ---------------
crypto/algapi.c | 57 ----------------------------------
crypto/shash.c | 19 ------------
include/crypto/algapi.h | 22 -------------
include/crypto/internal/hash.h | 31 ------------------
5 files changed, 154 deletions(-)
diff --git a/crypto/ahash.c b/crypto/ahash.c
index e98a1398ed7f..2b8449fdb93c 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -655,31 +655,6 @@ int ahash_register_instance(struct crypto_template *tmpl,
}
EXPORT_SYMBOL_GPL(ahash_register_instance);
-void ahash_free_instance(struct crypto_instance *inst)
-{
- crypto_drop_spawn(crypto_instance_ctx(inst));
- kfree(ahash_instance(inst));
-}
-EXPORT_SYMBOL_GPL(ahash_free_instance);
-
-int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,
- struct hash_alg_common *alg,
- struct crypto_instance *inst)
-{
- return crypto_init_spawn2(&spawn->base, &alg->base, inst,
- &crypto_ahash_type);
-}
-EXPORT_SYMBOL_GPL(crypto_init_ahash_spawn);
-
-struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask)
-{
- struct crypto_alg *alg;
-
- alg = crypto_attr_alg2(rta, &crypto_ahash_type, type, mask);
- return IS_ERR(alg) ? ERR_CAST(alg) : __crypto_hash_alg_common(alg);
-}
-EXPORT_SYMBOL_GPL(ahash_attr_alg);
-
bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg)
{
struct crypto_alg *alg = &halg->base;
diff --git a/crypto/algapi.c b/crypto/algapi.c
index a25ce02918f8..f66a4ff57e6e 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -697,23 +697,6 @@ int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
}
EXPORT_SYMBOL_GPL(crypto_init_spawn);
-int crypto_init_spawn2(struct crypto_spawn *spawn, struct crypto_alg *alg,
- struct crypto_instance *inst,
- const struct crypto_type *frontend)
-{
- int err = -EINVAL;
-
- if ((alg->cra_flags ^ frontend->type) & frontend->maskset)
- goto out;
-
- spawn->frontend = frontend;
- err = crypto_init_spawn(spawn, alg, inst, frontend->maskset);
-
-out:
- return err;
-}
-EXPORT_SYMBOL_GPL(crypto_init_spawn2);
-
int crypto_grab_spawn(struct crypto_spawn *spawn, struct crypto_instance *inst,
const char *name, u32 type, u32 mask)
{
@@ -876,20 +859,6 @@ const char *crypto_attr_alg_name(struct rtattr *rta)
}
EXPORT_SYMBOL_GPL(crypto_attr_alg_name);
-struct crypto_alg *crypto_attr_alg2(struct rtattr *rta,
- const struct crypto_type *frontend,
- u32 type, u32 mask)
-{
- const char *name;
-
- name = crypto_attr_alg_name(rta);
- if (IS_ERR(name))
- return ERR_CAST(name);
-
- return crypto_find_alg(name, frontend, type, mask);
-}
-EXPORT_SYMBOL_GPL(crypto_attr_alg2);
-
int crypto_attr_u32(struct rtattr *rta, u32 *num)
{
struct crypto_attr_u32 *nu32;
@@ -923,32 +892,6 @@ int crypto_inst_setname(struct crypto_instance *inst, const char *name,
}
EXPORT_SYMBOL_GPL(crypto_inst_setname);
-void *crypto_alloc_instance(const char *name, struct crypto_alg *alg,
- unsigned int head)
-{
- struct crypto_instance *inst;
- char *p;
- int err;
-
- p = kzalloc(head + sizeof(*inst) + sizeof(struct crypto_spawn),
- GFP_KERNEL);
- if (!p)
- return ERR_PTR(-ENOMEM);
-
- inst = (void *)(p + head);
-
- err = crypto_inst_setname(inst, name, alg);
- if (err)
- goto err_free_inst;
-
- return p;
-
-err_free_inst:
- kfree(p);
- return ERR_PTR(err);
-}
-EXPORT_SYMBOL_GPL(crypto_alloc_instance);
-
void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen)
{
INIT_LIST_HEAD(&queue->list);
diff --git a/crypto/shash.c b/crypto/shash.c
index e0872ac2729a..4d6ccb59e126 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -584,24 +584,5 @@ void shash_free_instance(struct crypto_instance *inst)
}
EXPORT_SYMBOL_GPL(shash_free_instance);
-int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
- struct shash_alg *alg,
- struct crypto_instance *inst)
-{
- return crypto_init_spawn2(&spawn->base, &alg->base, inst,
- &crypto_shash_type);
-}
-EXPORT_SYMBOL_GPL(crypto_init_shash_spawn);
-
-struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask)
-{
- struct crypto_alg *alg;
-
- alg = crypto_attr_alg2(rta, &crypto_shash_type, type, mask);
- return IS_ERR(alg) ? ERR_CAST(alg) :
- container_of(alg, struct shash_alg, base);
-}
-EXPORT_SYMBOL_GPL(shash_attr_alg);
-
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Synchronous cryptographic hash type");
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index c7c028472e91..8a43c55a1979 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,
@@ -248,12 +232,6 @@ 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)
{
--
2.24.1
