crypto: skcipher - remove remnants of internal IV generators

Remove dead code related to internal IV generators, which are no longer
used since they've been replaced with the "seqiv" and "echainiv"
templates.  The removed code includes:

- The "givcipher" (GIVCIPHER) algorithm type.  No algorithms are
  registered with this type anymore, so it's unneeded.

- The "const char *geniv" member of aead_alg, ablkcipher_alg, and
  blkcipher_alg.  A few algorithms still set this, but it isn't used
  anymore except to show via /proc/crypto and CRYPTO_MSG_GETALG.
  Just hardcode "<default>" or "<none>" in those cases.

- The 'skcipher_givcrypt_request' structure, which is never used.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 0 insertions, 3 deletions

diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index b7b8d24cf765..9ad595f97c65 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -115,7 +115,6 @@ struct aead_request {
  * @setkey: see struct skcipher_alg
  * @encrypt: see struct skcipher_alg
  * @decrypt: see struct skcipher_alg
- * @geniv: see struct skcipher_alg
  * @ivsize: see struct skcipher_alg
  * @chunksize: see struct skcipher_alg
  * @init: Initialize the cryptographic transformation object. This function
@@ -142,8 +141,6 @@ struct aead_alg {
 	int (*init)(struct crypto_aead *tfm);
 	void (*exit)(struct crypto_aead *tfm);
 
-	const char *geniv;
-
 	unsigned int ivsize;
 	unsigned int maxauthsize;
 	unsigned int chunksize;