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authorEric Biggers <ebiggers@google.com>2018-01-03 11:16:23 -0800
committerHerbert Xu <herbert@gondor.apana.org.au>2018-01-12 23:03:09 +1100
commit841a3ff329713f796a63356fef6e2f72e4a3f6a3 (patch)
tree7dd4bd49480355fa94e85547794211380c43e2f4 /crypto
parentcd6ed77ad5d223dc6299fb58f62e0f5267f7e2ba (diff)
crypto: cryptd - pass through absence of ->setkey()
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. Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/cryptd.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 552e3a86e829..457ae3e66a41 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -914,7 +914,8 @@ 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);