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| author | Eric Biggers <ebiggers@google.com> | 2023-10-29 06:03:55 +0100 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2024-01-05 16:29:53 +0100 |
| commit | 738fadaa549797c777650ac8d0d433fdc20152e3 (patch) | |
| tree | a0ab2d7fe99c255694e776a6d432f81e9a026fc5 /fs/ubifs | |
| parent | Linux 6.7-rc7 (diff) | |
| download | linux-738fadaa549797c777650ac8d0d433fdc20152e3.tar.xz linux-738fadaa549797c777650ac8d0d433fdc20152e3.zip | |
ubifs: use crypto_shash_tfm_digest() in ubifs_hmac_wkm()
Simplify ubifs_hmac_wkm() by using crypto_shash_tfm_digest() instead of
an alloc+init+update+final sequence. This should also improve
performance.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Tested-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs')
| -rw-r--r-- | fs/ubifs/auth.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/fs/ubifs/auth.c b/fs/ubifs/auth.c index 0d561ecb6869..5c414d896c9b 100644 --- a/fs/ubifs/auth.c +++ b/fs/ubifs/auth.c @@ -507,28 +507,13 @@ out: */ int ubifs_hmac_wkm(struct ubifs_info *c, u8 *hmac) { - SHASH_DESC_ON_STACK(shash, c->hmac_tfm); - int err; const char well_known_message[] = "UBIFS"; if (!ubifs_authenticated(c)) return 0; - shash->tfm = c->hmac_tfm; - - err = crypto_shash_init(shash); - if (err) - return err; - - err = crypto_shash_update(shash, well_known_message, - sizeof(well_known_message) - 1); - if (err < 0) - return err; - - err = crypto_shash_final(shash, hmac); - if (err) - return err; - return 0; + return crypto_shash_tfm_digest(c->hmac_tfm, well_known_message, + sizeof(well_known_message) - 1, hmac); } /* |