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crypto: skcipher - Add helper to retrieve driver name

Message ID 20160126141436.GB22685@gondor.apana.org.au (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show

Commit Message

Herbert Xu Jan. 26, 2016, 2:14 p.m. UTC 
This patch adds the helper crypto_skcipher_driver_name which returns
the driver name of the alg object for a given tfm.  This is needed by
ecryptfs.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Patch

diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index f7a03a1..5bb7056 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -231,6 +231,12 @@  static inline int crypto_has_skcipher(const char *alg_name, u32 type,
 			      crypto_skcipher_mask(mask));
 }
 
+static inline const char *crypto_skcipher_driver_name(
+	struct crypto_skcipher *tfm)
+{
+	return crypto_tfm_alg_name(crypto_skcipher_tfm(tfm));
+}
+
 /**
  * crypto_skcipher_ivsize() - obtain IV size
  * @tfm: cipher handle