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crypto: skcipher - unify the crypto_has_skcipher*() functions

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crypto_has_skcipher() and crypto_has_skcipher2() do the same thing: they
check for the availability of an algorithm of type skcipher, blkcipher,
or ablkcipher, which also meets any non-type constraints the caller
specified.  And they have exactly the same prototype.

Therefore, eliminate the redundancy by removing crypto_has_skcipher()
and renaming crypto_has_skcipher2() to crypto_has_skcipher().

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers 2019-10-25 12:41:09 -07:00 • committed by Herbert Xu
parent 8d68e7e1ec
commit d3ca75a8b3
2 changed files with 3 additions and 20 deletions
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4
crypto/skcipher.c
View file

@ -1017,12 +1017,12 @@ struct crypto_sync_skcipher *crypto_alloc_sync_skcipher(
} }
EXPORT_SYMBOL_GPL(crypto_alloc_sync_skcipher); EXPORT_SYMBOL_GPL(crypto_alloc_sync_skcipher);
int crypto_has_skcipher2(const char *alg_name, u32 type, u32 mask) int crypto_has_skcipher(const char *alg_name, u32 type, u32 mask)
{ {
return crypto_type_has_alg(alg_name, &crypto_skcipher_type2, return crypto_type_has_alg(alg_name, &crypto_skcipher_type2,
type, mask); type, mask);
} }
EXPORT_SYMBOL_GPL(crypto_has_skcipher2); EXPORT_SYMBOL_GPL(crypto_has_skcipher);
static int skcipher_prepare_alg(struct skcipher_alg *alg) static int skcipher_prepare_alg(struct skcipher_alg *alg)
{ {

19
include/crypto/skcipher.h
View file

@ -218,30 +218,13 @@ static inline void crypto_free_sync_skcipher(struct crypto_sync_skcipher *tfm)
* crypto_has_skcipher() - Search for the availability of an skcipher. * crypto_has_skcipher() - Search for the availability of an skcipher.
* @alg_name: is the cra_name / name or cra_driver_name / driver name of the * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
* skcipher * skcipher
* @type: specifies the type of the cipher
* @mask: specifies the mask for the cipher
*
* Return: true when the skcipher is known to the kernel crypto API; false
* otherwise
*/
static inline int crypto_has_skcipher(const char *alg_name, u32 type,
u32 mask)
{
return crypto_has_alg(alg_name, crypto_skcipher_type(type),
crypto_skcipher_mask(mask));
}
/**
* crypto_has_skcipher2() - Search for the availability of an skcipher.
* @alg_name: is the cra_name / name or cra_driver_name / driver name of the
* skcipher
* @type: specifies the type of the skcipher * @type: specifies the type of the skcipher
* @mask: specifies the mask for the skcipher * @mask: specifies the mask for the skcipher
* *
* Return: true when the skcipher is known to the kernel crypto API; false * Return: true when the skcipher is known to the kernel crypto API; false
* otherwise * otherwise
*/ */
int crypto_has_skcipher2(const char *alg_name, u32 type, u32 mask); int crypto_has_skcipher(const char *alg_name, u32 type, u32 mask);
static inline const char *crypto_skcipher_driver_name( static inline const char *crypto_skcipher_driver_name(
struct crypto_skcipher *tfm) struct crypto_skcipher *tfm)