diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-04-20 13:39:00 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-04-21 10:19:54 +0800 |
| commit | 38d21433112c25acdb8e93f60be629e7a1c27a26 (patch) | |
| tree | 6181b6526feb9f200389026477499ebcc28e6c7c | |
| parent | 2a57e4241ec9a11ce89f43099a0f6b83a28058fa (diff) | |
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: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/algapi.c | 6 | ||||
| -rw-r--r-- | crypto/internal.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c index d2627a3d4ed8..a60f62625b5f 100644 --- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -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(); diff --git a/crypto/internal.h b/crypto/internal.h index bd39bfc92eab..ed7a70c6dbc1 100644 --- a/crypto/internal.h +++ b/crypto/internal.h @@ -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); |