diff options
| author | Jussi Kivilinna <jussi.kivilinna@mbnet.fi> | 2011-10-18 13:33:07 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-11-09 11:53:32 +0800 |
| commit | f9d2691fc9a00f39b587f965c33cca012a5597bc (patch) | |
| tree | aec2fc72e15ed2fd9ba3ccd5f368961e6183d8ba /crypto | |
| parent | 81559f9ad3d88c033e4ec3b6468012dbfda3b31d (diff) | |
| download | lwn-f9d2691fc9a00f39b587f965c33cca012a5597bc.tar.gz lwn-f9d2691fc9a00f39b587f965c33cca012a5597bc.zip | |
crypto: xts - use blocksize constant
XTS has fixed blocksize of 16. Define XTS_BLOCK_SIZE and use in place of
crypto_cipher_blocksize().
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/xts.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/crypto/xts.c b/crypto/xts.c index 851705446c82..96f3f88d576e 100644 --- a/crypto/xts.c +++ b/crypto/xts.c @@ -24,6 +24,8 @@ #include <crypto/b128ops.h> #include <crypto/gf128mul.h> +#define XTS_BLOCK_SIZE 16 + struct priv { struct crypto_cipher *child; struct crypto_cipher *tweak; @@ -96,7 +98,7 @@ static int crypt(struct blkcipher_desc *d, { int err; unsigned int avail; - const int bs = crypto_cipher_blocksize(ctx->child); + const int bs = XTS_BLOCK_SIZE; struct sinfo s = { .tfm = crypto_cipher_tfm(ctx->child), .fn = fn @@ -177,7 +179,7 @@ static int init_tfm(struct crypto_tfm *tfm) if (IS_ERR(cipher)) return PTR_ERR(cipher); - if (crypto_cipher_blocksize(cipher) != 16) { + if (crypto_cipher_blocksize(cipher) != XTS_BLOCK_SIZE) { *flags |= CRYPTO_TFM_RES_BAD_BLOCK_LEN; crypto_free_cipher(cipher); return -EINVAL; @@ -192,7 +194,7 @@ static int init_tfm(struct crypto_tfm *tfm) } /* this check isn't really needed, leave it here just in case */ - if (crypto_cipher_blocksize(cipher) != 16) { + if (crypto_cipher_blocksize(cipher) != XTS_BLOCK_SIZE) { crypto_free_cipher(cipher); crypto_free_cipher(ctx->child); *flags |= CRYPTO_TFM_RES_BAD_BLOCK_LEN; |