[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, 4 insertions, 2 deletions

diff --git a/crypto/des.c b/crypto/des.c
index a9d3c23..1df3a71 100644
--- a/crypto/des.c
+++ b/crypto/des.c
@@ -784,9 +784,10 @@ static void dkey(u32 *pe, const u8 *k)
 }
 
 static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
-		      unsigned int keylen, u32 *flags)
+		      unsigned int keylen)
 {
 	struct des_ctx *dctx = crypto_tfm_ctx(tfm);
+	u32 *flags = &tfm->crt_flags;
 	u32 tmp[DES_EXPKEY_WORDS];
 	int ret;
 
@@ -864,11 +865,12 @@ static void des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
  *
  */
 static int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key,
-			   unsigned int keylen, u32 *flags)
+			   unsigned int keylen)
 {
 	const u32 *K = (const u32 *)key;
 	struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
 	u32 *expkey = dctx->expkey;
+	u32 *flags = &tfm->crt_flags;
 
 	if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) ||
 		     !((K[2] ^ K[4]) | (K[3] ^ K[5]))))