[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>

1 files changed, 1 insertions, 7 deletions

diff --git a/crypto/khazad.c b/crypto/khazad.c
index d4c9d3657b36..9fa24a2dd6ff 100644
--- a/crypto/khazad.c
+++ b/crypto/khazad.c
@@ -755,19 +755,13 @@ static const u64 c[KHAZAD_ROUNDS + 1] = {
 };
 
 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]);