diff options
Diffstat (limited to 'crypto/pcbc.c')
| -rw-r--r-- | crypto/pcbc.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/crypto/pcbc.c b/crypto/pcbc.c index cbfb3ac14b3a..9d2e56d6744a 100644 --- a/crypto/pcbc.c +++ b/crypto/pcbc.c @@ -22,8 +22,8 @@ static int crypto_pcbc_encrypt_segment(struct skcipher_request *req, struct crypto_cipher *tfm) { int bsize = crypto_cipher_blocksize(tfm); + const u8 *src = walk->src.virt.addr; unsigned int nbytes = walk->nbytes; - u8 *src = walk->src.virt.addr; u8 *dst = walk->dst.virt.addr; u8 * const iv = walk->iv; @@ -45,17 +45,17 @@ static int crypto_pcbc_encrypt_inplace(struct skcipher_request *req, { int bsize = crypto_cipher_blocksize(tfm); unsigned int nbytes = walk->nbytes; - u8 *src = walk->src.virt.addr; + u8 *dst = walk->dst.virt.addr; u8 * const iv = walk->iv; u8 tmpbuf[MAX_CIPHER_BLOCKSIZE]; do { - memcpy(tmpbuf, src, bsize); - crypto_xor(iv, src, bsize); - crypto_cipher_encrypt_one(tfm, src, iv); - crypto_xor_cpy(iv, tmpbuf, src, bsize); + memcpy(tmpbuf, dst, bsize); + crypto_xor(iv, dst, bsize); + crypto_cipher_encrypt_one(tfm, dst, iv); + crypto_xor_cpy(iv, tmpbuf, dst, bsize); - src += bsize; + dst += bsize; } while ((nbytes -= bsize) >= bsize); return nbytes; @@ -89,8 +89,8 @@ static int crypto_pcbc_decrypt_segment(struct skcipher_request *req, struct crypto_cipher *tfm) { int bsize = crypto_cipher_blocksize(tfm); + const u8 *src = walk->src.virt.addr; unsigned int nbytes = walk->nbytes; - u8 *src = walk->src.virt.addr; u8 *dst = walk->dst.virt.addr; u8 * const iv = walk->iv; @@ -112,17 +112,17 @@ static int crypto_pcbc_decrypt_inplace(struct skcipher_request *req, { int bsize = crypto_cipher_blocksize(tfm); unsigned int nbytes = walk->nbytes; - u8 *src = walk->src.virt.addr; + u8 *dst = walk->dst.virt.addr; u8 * const iv = walk->iv; u8 tmpbuf[MAX_CIPHER_BLOCKSIZE] __aligned(__alignof__(u32)); do { - memcpy(tmpbuf, src, bsize); - crypto_cipher_decrypt_one(tfm, src, src); - crypto_xor(src, iv, bsize); - crypto_xor_cpy(iv, src, tmpbuf, bsize); + memcpy(tmpbuf, dst, bsize); + crypto_cipher_decrypt_one(tfm, dst, dst); + crypto_xor(dst, iv, bsize); + crypto_xor_cpy(iv, dst, tmpbuf, bsize); - src += bsize; + dst += bsize; } while ((nbytes -= bsize) >= bsize); return nbytes; |