[PATCH 2/4] [CRYPTO] null: Allow setkey on digest_null

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[CRYPTO] null: Allow setkey on digest_null 

We need to allow setkey on digest_null if it is to be used directly by
authenc instead of through hmac.

Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
---

 crypto/crypto_null.c |    1 +
 1 files changed, 1 insertion(+)

diff --git a/crypto/crypto_null.c b/crypto/crypto_null.c
index fc2d2a4..ff7b3de 100644
--- a/crypto/crypto_null.c
+++ b/crypto/crypto_null.c
@@ -98,6 +98,7 @@ static struct crypto_alg digest_null = {
 	.cra_list		=       LIST_HEAD_INIT(digest_null.cra_list),	
 	.cra_u			=	{ .digest = {
 	.dia_digestsize		=	NULL_DIGEST_SIZE,
+	.dia_setkey   		=	null_setkey,
 	.dia_init   		=	null_init,
 	.dia_update 		=	null_update,
 	.dia_final  		=	null_final } }
-
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