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| author | Eric Biggers <ebiggers@google.com> | 2020-05-01 22:31:16 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-08 15:32:15 +1000 |
| commit | 1979811388050dc3c1533b5e3e43a6d50b7ad39b (patch) | |
| tree | 235ea57d8b5fc53481d1ba6831d4180773919fa8 /fs/ecryptfs | |
| parent | 3e185a56eb6968927049f2b3b8c95b3636d77ffd (diff) | |
| download | lwn-1979811388050dc3c1533b5e3e43a6d50b7ad39b.tar.gz lwn-1979811388050dc3c1533b5e3e43a6d50b7ad39b.zip | |
ecryptfs: 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.
Cc: ecryptfs@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'fs/ecryptfs')
| -rw-r--r-- | fs/ecryptfs/crypto.c | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index 2c449aed1b92..0681540c48d9 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -48,18 +48,6 @@ void ecryptfs_from_hex(char *dst, char *src, int dst_size) } } -static int ecryptfs_hash_digest(struct crypto_shash *tfm, - char *src, int len, char *dst) -{ - SHASH_DESC_ON_STACK(desc, tfm); - int err; - - desc->tfm = tfm; - err = crypto_shash_digest(desc, src, len, dst); - shash_desc_zero(desc); - return err; -} - /** * ecryptfs_calculate_md5 - calculates the md5 of @src * @dst: Pointer to 16 bytes of allocated memory @@ -74,11 +62,8 @@ static int ecryptfs_calculate_md5(char *dst, struct ecryptfs_crypt_stat *crypt_stat, char *src, int len) { - struct crypto_shash *tfm; - int rc = 0; + int rc = crypto_shash_tfm_digest(crypt_stat->hash_tfm, src, len, dst); - tfm = crypt_stat->hash_tfm; - rc = ecryptfs_hash_digest(tfm, src, len, dst); if (rc) { printk(KERN_ERR "%s: Error computing crypto hash; rc = [%d]\n", |