crypto: shash - Fix digest size offset

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Hi:

This one fixes failures when using shash algorithms through
ahash.

commit fa64966473830219fe74952029ddb0e981a87749
Author: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Date:   Wed Jul 15 21:16:05 2009 +0800

    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@xxxxxxxxxxxxxxxxxxx>

diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 3e89ce1..26cb1eb 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;

Cheers,
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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