[CRYPTO] hash: Add asynchronous hash support

This patch adds asynchronous hash and digest support.

Signed-off-by: Loc Ho <lho@amcc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 6 insertions, 2 deletions

diff --git a/crypto/api.c b/crypto/api.c
index 0a0f41ef255f..d06e33270abe 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -235,8 +235,12 @@ static int crypto_init_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
                 return crypto_init_cipher_ops(tfm);
                 
         case CRYPTO_ALG_TYPE_DIGEST:
-                return crypto_init_digest_ops(tfm);
-                
+                if ((mask & CRYPTO_ALG_TYPE_HASH_MASK) !=
+                    CRYPTO_ALG_TYPE_HASH_MASK)
+                        return crypto_init_digest_ops_async(tfm);
+                else
+                        return crypto_init_digest_ops(tfm);
+
         case CRYPTO_ALG_TYPE_COMPRESS:
                 return crypto_init_compress_ops(tfm);