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dm-integrity: prefer synchronous hash interface

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The previous patch preferred async interface for the purpose of testing.
However, the synchronous interface is faster, so it should be preferred.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Mikulas Patocka 2025-09-17 17:52:09 +02:00
parent 5076d4599c
commit 1cd83fb790
1 changed files with 24 additions and 23 deletions
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47
drivers/md/dm-integrity.c
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@ -4354,13 +4354,33 @@ static int get_mac(struct crypto_shash **shash, struct crypto_ahash **ahash,
int r;
if (a->alg_string) {
if (shash) {
*shash = crypto_alloc_shash(a->alg_string, 0, CRYPTO_ALG_ALLOCATES_MEMORY);
if (IS_ERR(*shash)) {
*shash = NULL;
goto try_ahash;
}
if (a->key) {
r = crypto_shash_setkey(*shash, a->key, a->key_size);
if (r) {
*error = error_key;
return r;
}
} else if (crypto_shash_get_flags(*shash) & CRYPTO_TFM_NEED_KEY) {
*error = error_key;
return -ENOKEY;
}
return 0;
}
try_ahash:
if (ahash) {
*ahash = crypto_alloc_ahash(a->alg_string, 0, CRYPTO_ALG_ALLOCATES_MEMORY);
if (IS_ERR(*ahash)) {
*error = error_alg;
r = PTR_ERR(*ahash);
*ahash = NULL;
goto try_shash;
return r;
}
if (a->key) {
r = crypto_ahash_setkey(*ahash, a->key, a->key_size);
if (r) {
@ -4371,29 +4391,10 @@ static int get_mac(struct crypto_shash **shash, struct crypto_ahash **ahash,
*error = error_key;
return -ENOKEY;
}
return 0;
}
try_shash:
*shash = crypto_alloc_shash(a->alg_string, 0, CRYPTO_ALG_ALLOCATES_MEMORY);
if (IS_ERR(*shash)) {
*error = error_alg;
r = PTR_ERR(*shash);
*shash = NULL;
return r;
}
if (a->key) {
r = crypto_shash_setkey(*shash, a->key, a->key_size);
if (r) {
*error = error_key;
return r;
}
} else if (crypto_shash_get_flags(*shash) & CRYPTO_TFM_NEED_KEY) {
*error = error_key;
return -ENOKEY;
}
*error = error_alg;
return -ENOENT;
}
return 0;