[CRYPTO] cipher: Removed special IV checks for ECB

This patch makes IV operations on ECB fail through nocrypt_iv rather than
calling BUG().  This is needed to generalise CBC/ECB using the template
mechanism.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

2 files changed, 2 insertions, 2 deletions

diff --git a/crypto/cipher.c b/crypto/cipher.c
index 56406a4a88d4..aebc4a2adc80 100644
--- a/crypto/cipher.c
+++ b/crypto/cipher.c
@@ -399,6 +399,8 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm)
         case CRYPTO_TFM_MODE_ECB:
                 ops->cit_encrypt = ecb_encrypt;
                 ops->cit_decrypt = ecb_decrypt;
+                ops->cit_encrypt_iv = nocrypt_iv;
+                ops->cit_decrypt_iv = nocrypt_iv;
                 break;
                 
         case CRYPTO_TFM_MODE_CBC:
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 053bfab43e8d..dbdfc7c79367 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -422,7 +422,6 @@ static inline int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm,
                                            unsigned int nbytes, u8 *iv)
 {
         BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-        BUG_ON(tfm->crt_cipher.cit_mode == CRYPTO_TFM_MODE_ECB);
         return tfm->crt_cipher.cit_encrypt_iv(tfm, dst, src, nbytes, iv);
 }                                        
 
@@ -441,7 +440,6 @@ static inline int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm,
                                            unsigned int nbytes, u8 *iv)
 {
         BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-        BUG_ON(tfm->crt_cipher.cit_mode == CRYPTO_TFM_MODE_ECB);
         return tfm->crt_cipher.cit_decrypt_iv(tfm, dst, src, nbytes, iv);
 }