dm crypt: remove obsolete comment about plumb IV

The URL is no longer valid and the comment is obsolete anyway
(the plumb IV was never used).

Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index cd349e9256495dfa5d6a1bd301b91e1cc630e835..e14730f720ced00f14da1881fe0125756f9bcfdd 100644 (file)
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -290,9 +290,6 @@ static struct crypto_aead *any_tfm_aead(struct crypt_config *cc)
  *       is calculated from initial key, sector number and mixed using CRC32.
  *       Note that this encryption scheme is vulnerable to watermarking attacks
  *       and should be used for old compatible containers access only.
- *
- * plumb: unimplemented, see:
- * http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/454
  */
 
 static int crypt_iv_plain_gen(struct crypt_config *cc, u8 *iv,