crypto: ablkcipher - remove deprecated and unused ablkcipher support

Now that all users of the deprecated ablkcipher interface have been
moved to the skcipher interface, ablkcipher is no longer used and
can be removed.

Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

7 files changed, 2 insertions, 119 deletions

diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index 3c245b1859e7..a3bdadf6221e 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -321,7 +321,7 @@ int crypto_aead_encrypt(struct aead_request *req);
 
 /**
  * crypto_aead_decrypt() - decrypt ciphertext
- * @req: reference to the ablkcipher_request handle that holds all information
+ * @req: reference to the aead_request handle that holds all information
  *	 needed to perform the cipher operation
  *
  * Decrypt ciphertext data using the aead_request handle. That data structure
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index cadc5257c612..5cd846defdd6 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -85,25 +85,6 @@ struct scatter_walk {
 	unsigned int offset;
 };
 
-struct ablkcipher_walk {
-	struct {
-		struct page *page;
-		unsigned int offset;
-	} src, dst;
-
-	struct scatter_walk	in;
-	unsigned int		nbytes;
-	struct scatter_walk	out;
-	unsigned int		total;
-	struct list_head	buffers;
-	u8			*iv_buffer;
-	u8			*iv;
-	int			flags;
-	unsigned int		blocksize;
-};
-
-extern const struct crypto_type crypto_ablkcipher_type;
-
 void crypto_mod_put(struct crypto_alg *alg);
 
 int crypto_register_template(struct crypto_template *tmpl);
@@ -202,12 +183,6 @@ static inline void crypto_xor_cpy(u8 *dst, const u8 *src1, const u8 *src2,
 	}
 }
 
-int ablkcipher_walk_done(struct ablkcipher_request *req,
-			 struct ablkcipher_walk *walk, int err);
-int ablkcipher_walk_phys(struct ablkcipher_request *req,
-			 struct ablkcipher_walk *walk);
-void __ablkcipher_walk_complete(struct ablkcipher_walk *walk);
-
 static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm)
 {
 	return PTR_ALIGN(crypto_tfm_ctx(tfm),
@@ -225,22 +200,6 @@ static inline void *crypto_instance_ctx(struct crypto_instance *inst)
 	return inst->__ctx;
 }
 
-static inline struct ablkcipher_alg *crypto_ablkcipher_alg(
-	struct crypto_ablkcipher *tfm)
-{
-	return &crypto_ablkcipher_tfm(tfm)->__crt_alg->cra_ablkcipher;
-}
-
-static inline void *crypto_ablkcipher_ctx(struct crypto_ablkcipher *tfm)
-{
-	return crypto_tfm_ctx(&tfm->base);
-}
-
-static inline void *crypto_ablkcipher_ctx_aligned(struct crypto_ablkcipher *tfm)
-{
-	return crypto_tfm_ctx_aligned(&tfm->base);
-}
-
 static inline struct crypto_cipher *crypto_spawn_cipher(
 	struct crypto_spawn *spawn)
 {
@@ -255,23 +214,6 @@ static inline struct cipher_alg *crypto_cipher_alg(struct crypto_cipher *tfm)
 	return &crypto_cipher_tfm(tfm)->__crt_alg->cra_cipher;
 }
 
-static inline void ablkcipher_walk_init(struct ablkcipher_walk *walk,
-					struct scatterlist *dst,
-					struct scatterlist *src,
-					unsigned int nbytes)
-{
-	walk->in.sg = src;
-	walk->out.sg = dst;
-	walk->total = nbytes;
-	INIT_LIST_HEAD(&walk->buffers);
-}
-
-static inline void ablkcipher_walk_complete(struct ablkcipher_walk *walk)
-{
-	if (unlikely(!list_empty(&walk->buffers)))
-		__ablkcipher_walk_complete(walk);
-}
-
 static inline struct crypto_async_request *crypto_get_backlog(
 	struct crypto_queue *queue)
 {
@@ -279,23 +221,6 @@ static inline struct crypto_async_request *crypto_get_backlog(
 	       container_of(queue->backlog, struct crypto_async_request, list);
 }
 
-static inline int ablkcipher_enqueue_request(struct crypto_queue *queue,
-					     struct ablkcipher_request *request)
-{
-	return crypto_enqueue_request(queue, &request->base);
-}
-
-static inline struct ablkcipher_request *ablkcipher_dequeue_request(
-	struct crypto_queue *queue)
-{
-	return ablkcipher_request_cast(crypto_dequeue_request(queue));
-}
-
-static inline void *ablkcipher_request_ctx(struct ablkcipher_request *req)
-{
-	return req->__ctx;
-}
-
 static inline struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb,
 						     u32 type, u32 mask)
 {
diff --git a/include/crypto/engine.h b/include/crypto/engine.h
index 84c708bba00b..e29cd67f93c7 100644
--- a/include/crypto/engine.h
+++ b/include/crypto/engine.h
@@ -83,8 +83,6 @@ struct crypto_engine_ctx {
 	struct crypto_engine_op op;
 };
 
-int crypto_transfer_ablkcipher_request_to_engine(struct crypto_engine *engine,
-						 struct ablkcipher_request *req);
 int crypto_transfer_aead_request_to_engine(struct crypto_engine *engine,
 					   struct aead_request *req);
 int crypto_transfer_akcipher_request_to_engine(struct crypto_engine *engine,
@@ -93,8 +91,6 @@ int crypto_transfer_hash_request_to_engine(struct crypto_engine *engine,
 					       struct ahash_request *req);
 int crypto_transfer_skcipher_request_to_engine(struct crypto_engine *engine,
 					       struct skcipher_request *req);
-void crypto_finalize_ablkcipher_request(struct crypto_engine *engine,
-					struct ablkcipher_request *req, int err);
 void crypto_finalize_aead_request(struct crypto_engine *engine,
 				  struct aead_request *req, int err);
 void crypto_finalize_akcipher_request(struct crypto_engine *engine,
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index d52b95b75ae4..fe7f73bad1e2 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -227,7 +227,7 @@ struct crypto_shash {
  * CRYPTO_ALG_TYPE_AHASH (listed as type "ahash" in /proc/crypto)
  *
  * The asynchronous cipher operation discussion provided for the
- * CRYPTO_ALG_TYPE_ABLKCIPHER API applies here as well.
+ * CRYPTO_ALG_TYPE_SKCIPHER API applies here as well.
  */
 
 static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm)
diff --git a/include/crypto/internal/des.h b/include/crypto/internal/des.h
index 81ea1a425e9c..f62a2bb1866b 100644
--- a/include/crypto/internal/des.h
+++ b/include/crypto/internal/des.h
@@ -117,18 +117,6 @@ static inline int verify_skcipher_des3_key(struct crypto_skcipher *tfm,
 	return crypto_des3_ede_verify_key(crypto_skcipher_tfm(tfm), key);
 }
 
-static inline int verify_ablkcipher_des_key(struct crypto_ablkcipher *tfm,
-					    const u8 *key)
-{
-	return crypto_des_verify_key(crypto_ablkcipher_tfm(tfm), key);
-}
-
-static inline int verify_ablkcipher_des3_key(struct crypto_ablkcipher *tfm,
-					     const u8 *key)
-{
-	return crypto_des3_ede_verify_key(crypto_ablkcipher_tfm(tfm), key);
-}
-
 static inline int verify_aead_des_key(struct crypto_aead *tfm, const u8 *key,
 				      int keylen)
 {
diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h
index 454e898d5f5f..921c409fe1b1 100644
--- a/include/crypto/internal/skcipher.h
+++ b/include/crypto/internal/skcipher.h
@@ -153,17 +153,6 @@ static inline void skcipher_walk_abort(struct skcipher_walk *walk)
 	skcipher_walk_done(walk, -ECANCELED);
 }
 
-static inline void ablkcipher_request_complete(struct ablkcipher_request *req,
-					       int err)
-{
-	req->base.complete(&req->base, err);
-}
-
-static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req)
-{
-	return req->base.flags;
-}
-
 static inline void *crypto_skcipher_ctx(struct crypto_skcipher *tfm)
 {
 	return crypto_tfm_ctx(&tfm->base);
@@ -182,27 +171,18 @@ static inline u32 skcipher_request_flags(struct skcipher_request *req)
 static inline unsigned int crypto_skcipher_alg_min_keysize(
 	struct skcipher_alg *alg)
 {
-	if (alg->base.cra_ablkcipher.encrypt)
-		return alg->base.cra_ablkcipher.min_keysize;
-
 	return alg->min_keysize;
 }
 
 static inline unsigned int crypto_skcipher_alg_max_keysize(
 	struct skcipher_alg *alg)
 {
-	if (alg->base.cra_ablkcipher.encrypt)
-		return alg->base.cra_ablkcipher.max_keysize;
-
 	return alg->max_keysize;
 }
 
 static inline unsigned int crypto_skcipher_alg_walksize(
 	struct skcipher_alg *alg)
 {
-	if (alg->base.cra_ablkcipher.encrypt)
-		return alg->base.cra_blocksize;
-
 	return alg->walksize;
 }
 
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index 8c5a31e810da..b4655d91661f 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -241,9 +241,6 @@ static inline struct skcipher_alg *crypto_skcipher_alg(
 
 static inline unsigned int crypto_skcipher_alg_ivsize(struct skcipher_alg *alg)
 {
-	if (alg->base.cra_ablkcipher.encrypt)
-		return alg->base.cra_ablkcipher.ivsize;
-
 	return alg->ivsize;
 }
 
@@ -286,9 +283,6 @@ static inline unsigned int crypto_skcipher_blocksize(
 static inline unsigned int crypto_skcipher_alg_chunksize(
 	struct skcipher_alg *alg)
 {
-	if (alg->base.cra_ablkcipher.encrypt)
-		return alg->base.cra_blocksize;
-
 	return alg->chunksize;
 }