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crypto: cryptd - pass through absence of ->setkey() 

commit 841a3ff329713f796a63356fef6e2f72e4a3f6a3 upstream.

When the cryptd template is used to wrap an unkeyed hash algorithm,
don't install a ->setkey() method to the cryptd instance.  This change
is necessary for cryptd to keep working with unkeyed hash algorithms
once we start enforcing that ->setkey() is called when present.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
This commit is contained in:
Eric Biggers 2018-01-03 11:16:23 -08:00 committed by syphyr
parent 244f5d5436
commit e06c1c6972
1 changed files with 2 additions and 1 deletions
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crypto/cryptd.c
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@ -618,7 +618,8 @@ static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
inst->alg.finup = cryptd_hash_finup_enqueue;
inst->alg.export = cryptd_hash_export;
inst->alg.import = cryptd_hash_import;
inst->alg.setkey = cryptd_hash_setkey;
if (crypto_shash_alg_has_setkey(salg))
inst->alg.setkey = cryptd_hash_setkey;
inst->alg.digest = cryptd_hash_digest_enqueue;
err = ahash_register_instance(tmpl, inst);