[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/cast6.c b/crypto/cast6.c
index 08e33bf..136ab6d 100644
--- a/crypto/cast6.c
+++ b/crypto/cast6.c
@@ -382,14 +382,15 @@
}
static int cast6_setkey(struct crypto_tfm *tfm, const u8 *in_key,
- unsigned key_len, u32 *flags)
+ unsigned key_len)
{
int i;
u32 key[8];
__be32 p_key[8]; /* padded key */
struct cast6_ctx *c = crypto_tfm_ctx(tfm);
+ u32 *flags = &tfm->crt_flags;
- if (key_len < 16 || key_len > 32 || key_len % 4 != 0) {
+ if (key_len % 4 != 0) {
*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL;
}