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Commit 38d21433 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: api - Add crypto_alg_extsize helper 



This patch adds a crypto_alg_extsize helper that can be used
by algorithm types such as pcompress and shash.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 2a57e424

crypto/algapi.c

+6 −0
Original line number Diff line number Diff line
@@ -964,6 +964,12 @@ void crypto_xor(u8 *dst, const u8 *src, unsigned int size) 
}

EXPORT_SYMBOL_GPL(crypto_xor);



unsigned int crypto_alg_extsize(struct crypto_alg *alg)

{

	return alg->cra_ctxsize;

}

EXPORT_SYMBOL_GPL(crypto_alg_extsize);



static int __init crypto_algapi_init(void)

{

	crypto_init_proc();

crypto/internal.h

+2 −0
Original line number Diff line number Diff line
@@ -103,6 +103,8 @@ int crypto_register_notifier(struct notifier_block *nb); 
int crypto_unregister_notifier(struct notifier_block *nb);

int crypto_probing_notify(unsigned long val, void *v);



unsigned int crypto_alg_extsize(struct crypto_alg *alg);



static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)

{

	atomic_inc(&alg->cra_refcnt);