diff mbox

[1/15] crypto: api - Add crypto_alg_extsize helper

Message ID E1Yk4Q8-0004ob-1W@gondolin.me.apana.org.au (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show

Commit Message

Herbert Xu April 20, 2015, 5:39 a.m. UTC 
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>
---

 crypto/algapi.c   |    6 ++++++
 crypto/internal.h |    2 ++
 2 files changed, 8 insertions(+)

--
To unsubscribe from this list: send the line "unsubscribe linux-crypto" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/crypto/algapi.c b/crypto/algapi.c
index 2d0a1c6..25c8117 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 bd39bfc..ed7a70c 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);