crypto: shash - Fix digest size offset

When an shash algorithm is exported as ahash, ahash will access
its digest size through hash_alg_common.  That's why the shash
layout needs to match hash_alg_common.  This wasn't the case
because the alignment weren't identical.

This patch fixes the problem.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 3e89ce16b59c..26cb1eb16f4c 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -75,7 +75,8 @@ struct shash_alg {
         unsigned int descsize;
 
         /* These fields must match hash_alg_common. */
-        unsigned int digestsize;
+        unsigned int digestsize
+                __attribute__ ((aligned(__alignof__(struct hash_alg_common))));
         unsigned int statesize;
 
         struct crypto_alg base;