[CRYPTO] api: Get rid of flags argument to setkey
Now that the tfm is passed directly to setkey instead of the ctx, we no
longer need to pass the &tfm->crt_flags pointer.
This patch also gets rid of a few unnecessary checks on the key length
for ciphers as the cipher layer guarantees that the key length is within
the bounds specified by the algorithm.
Rather than testing dia_setkey every time, this patch does it only once
during crypto_alloc_tfm. The redundant check from crypto_digest_setkey
is also removed.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/khazad.c b/crypto/khazad.c
index d4c9d36..9fa24a2 100644
--- a/crypto/khazad.c
+++ b/crypto/khazad.c
@@ -755,19 +755,13 @@
};
static int khazad_setkey(struct crypto_tfm *tfm, const u8 *in_key,
- unsigned int key_len, u32 *flags)
+ unsigned int key_len)
{
struct khazad_ctx *ctx = crypto_tfm_ctx(tfm);
const __be32 *key = (const __be32 *)in_key;
int r;
const u64 *S = T7;
u64 K2, K1;
-
- if (key_len != 16)
- {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
/* key is supposed to be 32-bit aligned */
K2 = ((u64)be32_to_cpu(key[0]) << 32) | be32_to_cpu(key[1]);