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| author | Eric Biggers <ebiggers@google.com> | 2020-05-01 22:31:18 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-08 15:32:15 +1000 |
| commit | f80df3851246ce5b9b7dd9625f3438e0f39383f1 (patch) | |
| tree | 127df489a32f5d5179e33211550f5046978e8294 /fs/ubifs/replay.c | |
| parent | ea794db2646a3660647dd2f2c8f6f2770acc3596 (diff) | |
| download | linux-f80df3851246ce5b9b7dd9625f3438e0f39383f1.tar.gz linux-f80df3851246ce5b9b7dd9625f3438e0f39383f1.tar.bz2 linux-f80df3851246ce5b9b7dd9625f3438e0f39383f1.zip | |
ubifs: 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: linux-mtd@lists.infradead.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'fs/ubifs/replay.c')
| -rw-r--r-- | fs/ubifs/replay.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/fs/ubifs/replay.c b/fs/ubifs/replay.c index b28ac4dfb407..c4047a8f6410 100644 --- a/fs/ubifs/replay.c +++ b/fs/ubifs/replay.c @@ -558,7 +558,7 @@ static int is_last_bud(struct ubifs_info *c, struct ubifs_bud *bud) return data == 0xFFFFFFFF; } -/* authenticate_sleb_hash and authenticate_sleb_hmac are split out for stack usage */ +/* authenticate_sleb_hash is split out for stack usage */ static int authenticate_sleb_hash(struct ubifs_info *c, struct shash_desc *log_hash, u8 *hash) { SHASH_DESC_ON_STACK(hash_desc, c->hash_tfm); @@ -569,15 +569,6 @@ static int authenticate_sleb_hash(struct ubifs_info *c, struct shash_desc *log_h return crypto_shash_final(hash_desc, hash); } -static int authenticate_sleb_hmac(struct ubifs_info *c, u8 *hash, u8 *hmac) -{ - SHASH_DESC_ON_STACK(hmac_desc, c->hmac_tfm); - - hmac_desc->tfm = c->hmac_tfm; - - return crypto_shash_digest(hmac_desc, hash, c->hash_len, hmac); -} - /** * authenticate_sleb - authenticate one scan LEB * @c: UBIFS file-system description object @@ -624,7 +615,8 @@ static int authenticate_sleb(struct ubifs_info *c, struct ubifs_scan_leb *sleb, if (err) goto out; - err = authenticate_sleb_hmac(c, hash, hmac); + err = crypto_shash_tfm_digest(c->hmac_tfm, hash, + c->hash_len, hmac); if (err) goto out; |