crypto: hash - Add crypto_ahash_has_setkey

This patch adds a way for ahash users to determine whether a key
is required by a crypto_ahash transform.

Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 3 insertions, 1 deletions

diff --git a/crypto/shash.c b/crypto/shash.c
index ecb1e3d39bf0..88a27de79848 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -355,8 +355,10 @@ int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
         crt->finup = shash_async_finup;
         crt->digest = shash_async_digest;
 
-        if (alg->setkey)
+        if (alg->setkey) {
                 crt->setkey = shash_async_setkey;
+                crt->has_setkey = true;
+        }
         if (alg->export)
                 crt->export = shash_async_export;
         if (alg->import)