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Commit cc44215e authored by Adrian Bunk's avatar Adrian Bunk Committed by David S. Miller
Browse files

[CRYPTO] api: Remove unused functions 



This patch removes the following no longer used functions:
- api.c: crypto_alg_available()
- digest.c: crypto_digest_init()
- digest.c: crypto_digest_update()
- digest.c: crypto_digest_final()
- digest.c: crypto_digest_digest()

Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent ab782705

crypto/api.c

+0 −15
Original line number Diff line number Diff line
@@ -466,23 +466,8 @@ void crypto_free_tfm(struct crypto_tfm *tfm) 
	kfree(tfm);

}



int crypto_alg_available(const char *name, u32 flags)

{

	int ret = 0;

	struct crypto_alg *alg = crypto_alg_mod_lookup(name, 0,

						       CRYPTO_ALG_ASYNC);

	

	if (!IS_ERR(alg)) {

		crypto_mod_put(alg);

		ret = 1;

	}

	

	return ret;

}



EXPORT_SYMBOL_GPL(crypto_alloc_tfm);

EXPORT_SYMBOL_GPL(crypto_free_tfm);

EXPORT_SYMBOL_GPL(crypto_alg_available);



int crypto_has_alg(const char *name, u32 type, u32 mask)

{

crypto/digest.c

+0 −48
Original line number Diff line number Diff line
@@ -21,54 +21,6 @@ 
#include "internal.h"

#include "scatterwalk.h"



void crypto_digest_init(struct crypto_tfm *tfm)

{

	struct crypto_hash *hash = crypto_hash_cast(tfm);

	struct hash_desc desc = { .tfm = hash, .flags = tfm->crt_flags };



	crypto_hash_init(&desc);

}

EXPORT_SYMBOL_GPL(crypto_digest_init);



void crypto_digest_update(struct crypto_tfm *tfm,

			  struct scatterlist *sg, unsigned int nsg)

{

	struct crypto_hash *hash = crypto_hash_cast(tfm);

	struct hash_desc desc = { .tfm = hash, .flags = tfm->crt_flags };

	unsigned int nbytes = 0;

	unsigned int i;



	for (i = 0; i < nsg; i++)

		nbytes += sg[i].length;



	crypto_hash_update(&desc, sg, nbytes);

}

EXPORT_SYMBOL_GPL(crypto_digest_update);



void crypto_digest_final(struct crypto_tfm *tfm, u8 *out)

{

	struct crypto_hash *hash = crypto_hash_cast(tfm);

	struct hash_desc desc = { .tfm = hash, .flags = tfm->crt_flags };



	crypto_hash_final(&desc, out);

}

EXPORT_SYMBOL_GPL(crypto_digest_final);



void crypto_digest_digest(struct crypto_tfm *tfm,

			  struct scatterlist *sg, unsigned int nsg, u8 *out)

{

	struct crypto_hash *hash = crypto_hash_cast(tfm);

	struct hash_desc desc = { .tfm = hash, .flags = tfm->crt_flags };

	unsigned int nbytes = 0;

	unsigned int i;



	for (i = 0; i < nsg; i++)

		nbytes += sg[i].length;



	crypto_hash_digest(&desc, sg, nbytes, out);

}

EXPORT_SYMBOL_GPL(crypto_digest_digest);



static int init(struct hash_desc *desc)

{

	struct crypto_tfm *tfm = crypto_hash_tfm(desc->tfm);

include/linux/crypto.h

+0 −22
Original line number Diff line number Diff line
@@ -241,12 +241,8 @@ int crypto_unregister_alg(struct crypto_alg *alg); 
 * Algorithm query interface.

 */

#ifdef CONFIG_CRYPTO

int crypto_alg_available(const char *name, u32 flags)

	__deprecated_for_modules;

int crypto_has_alg(const char *name, u32 type, u32 mask);

#else

static int crypto_alg_available(const char *name, u32 flags)

	__deprecated_for_modules;

static inline int crypto_alg_available(const char *name, u32 flags)

{

	return 0;
@@ -707,16 +703,6 @@ static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm, 
						dst, src);

}



void crypto_digest_init(struct crypto_tfm *tfm) __deprecated_for_modules;

void crypto_digest_update(struct crypto_tfm *tfm,

			  struct scatterlist *sg, unsigned int nsg)

	__deprecated_for_modules;

void crypto_digest_final(struct crypto_tfm *tfm, u8 *out)

	__deprecated_for_modules;

void crypto_digest_digest(struct crypto_tfm *tfm,

			  struct scatterlist *sg, unsigned int nsg, u8 *out)

	__deprecated_for_modules;



static inline struct crypto_hash *__crypto_hash_cast(struct crypto_tfm *tfm)

{

	return (struct crypto_hash *)tfm;
@@ -729,14 +715,6 @@ static inline struct crypto_hash *crypto_hash_cast(struct crypto_tfm *tfm) 
	return __crypto_hash_cast(tfm);

}



static int crypto_digest_setkey(struct crypto_tfm *tfm, const u8 *key,

				unsigned int keylen) __deprecated;

static inline int crypto_digest_setkey(struct crypto_tfm *tfm,

                                       const u8 *key, unsigned int keylen)

{

	return tfm->crt_hash.setkey(crypto_hash_cast(tfm), key, keylen);

}



static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name,

						    u32 type, u32 mask)

{