diff options
| author | Eric Biggers <ebiggers@google.com> | 2020-05-01 22:31:15 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-08 15:32:14 +1000 |
| commit | 3e185a56eb6968927049f2b3b8c95b3636d77ffd (patch) | |
| tree | 94b0e25dec1ae3c6d61d824f74a0ac03e18d2e41 /fs/crypto | |
| parent | 96a5aa721df8e740f8d33fe7eae18acc157a000d (diff) | |
| download | linux-3e185a56eb6968927049f2b3b8c95b3636d77ffd.tar.bz2 | |
fscrypt: use crypto_shash_tfm_digest()
Instead of manually allocating a 'struct shash_desc' on the stack and
calling crypto_shash_digest(), switch to using the new helper function
crypto_shash_tfm_digest() which does this for us.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'fs/crypto')
| -rw-r--r-- | fs/crypto/fname.c | 7 | ||||
| -rw-r--r-- | fs/crypto/hkdf.c | 6 |
2 files changed, 2 insertions, 11 deletions
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c index 4c212442a8f7..5c9fb013e3f7 100644 --- a/fs/crypto/fname.c +++ b/fs/crypto/fname.c @@ -83,13 +83,8 @@ static int fscrypt_do_sha256(const u8 *data, unsigned int data_len, u8 *result) tfm = prev_tfm; } } - { - SHASH_DESC_ON_STACK(desc, tfm); - desc->tfm = tfm; - - return crypto_shash_digest(desc, data, data_len, result); - } + return crypto_shash_tfm_digest(tfm, data, data_len, result); } static inline bool fscrypt_is_dot_dotdot(const struct qstr *str) diff --git a/fs/crypto/hkdf.c b/fs/crypto/hkdf.c index efb95bd19a89..0cba7928446d 100644 --- a/fs/crypto/hkdf.c +++ b/fs/crypto/hkdf.c @@ -44,17 +44,13 @@ static int hkdf_extract(struct crypto_shash *hmac_tfm, const u8 *ikm, unsigned int ikmlen, u8 prk[HKDF_HASHLEN]) { static const u8 default_salt[HKDF_HASHLEN]; - SHASH_DESC_ON_STACK(desc, hmac_tfm); int err; err = crypto_shash_setkey(hmac_tfm, default_salt, HKDF_HASHLEN); if (err) return err; - desc->tfm = hmac_tfm; - err = crypto_shash_digest(desc, ikm, ikmlen, prk); - shash_desc_zero(desc); - return err; + return crypto_shash_tfm_digest(hmac_tfm, ikm, ikmlen, prk); } /* |