crypto: skcipher - add crypto_skcipher_min_keysize()

Add a helper function crypto_skcipher_min_keysize() to mirror
crypto_skcipher_max_keysize().

This will be used by the self-tests.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index 8ebf4167632beabd9f2ebd81472e060bb1769a3c..141e7690f9c31f59fde23637881347e948c316e8 100644 (file)
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -368,6 +368,12 @@ static inline int crypto_sync_skcipher_setkey(struct crypto_sync_skcipher *tfm,
        return crypto_skcipher_setkey(&tfm->base, key, keylen);
 }
 
+static inline unsigned int crypto_skcipher_min_keysize(
+       struct crypto_skcipher *tfm)
+{
+       return crypto_skcipher_alg(tfm)->min_keysize;
+}
+
 static inline unsigned int crypto_skcipher_max_keysize(
        struct crypto_skcipher *tfm)
 {