crypto: skcipher - Add default key size helper
While converting ecryptfs over to skcipher I found that it needs
to pick a default key size if one isn't given. Rather than having
it poke into the guts of the algorithm to get max_keysize, let's
provide a helper that is meant to give a sane default (just in
case we ever get an algorithm that has no maximum key size).
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index d199c0b..69230e9 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c
@@ -118,7 +118,7 @@
skcipher->decrypt = skcipher_decrypt_blkcipher;
skcipher->ivsize = crypto_blkcipher_ivsize(blkcipher);
- skcipher->has_setkey = calg->cra_blkcipher.max_keysize;
+ skcipher->keysize = calg->cra_blkcipher.max_keysize;
return 0;
}
@@ -211,7 +211,7 @@
skcipher->ivsize = crypto_ablkcipher_ivsize(ablkcipher);
skcipher->reqsize = crypto_ablkcipher_reqsize(ablkcipher) +
sizeof(struct ablkcipher_request);
- skcipher->has_setkey = calg->cra_ablkcipher.max_keysize;
+ skcipher->keysize = calg->cra_ablkcipher.max_keysize;
return 0;
}