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dm crypt: replaced #if defined with IS_ENABLED

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IS_ENABLED(CONFIG_ENCRYPTED_KEYS) is true whether the option is built-in
or a module, so use it instead of #if defined checking for each
separately.

The other #if was to avoid a static function defined, but unused
warning. As we now always build the callsite when the function
is defined, we can remove that first #if guard.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Ahmad Fatoum 2021-01-22 09:43:20 +01:00 committed by Mike Snitzer
parent 21ec672ecf
commit 831475cc0b
1 changed files with 2 additions and 5 deletions
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7
drivers/md/dm-crypt.c
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@ -2436,7 +2436,6 @@ static int set_key_user(struct crypt_config *cc, struct key *key)
return 0;
}
#if defined(CONFIG_ENCRYPTED_KEYS) || defined(CONFIG_ENCRYPTED_KEYS_MODULE)
static int set_key_encrypted(struct crypt_config *cc, struct key *key)
{
const struct encrypted_key_payload *ekp;
@ -2452,7 +2451,6 @@ static int set_key_encrypted(struct crypt_config *cc, struct key *key)
return 0;
}
#endif /* CONFIG_ENCRYPTED_KEYS */
static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string)
{
@ -2482,11 +2480,10 @@ static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string
} else if (!strncmp(key_string, "user:", key_desc - key_string + 1)) {
type = &key_type_user;
set_key = set_key_user;
#if defined(CONFIG_ENCRYPTED_KEYS) || defined(CONFIG_ENCRYPTED_KEYS_MODULE)
} else if (!strncmp(key_string, "encrypted:", key_desc - key_string + 1)) {
} else if (IS_ENABLED(CONFIG_ENCRYPTED_KEYS) &&
!strncmp(key_string, "encrypted:", key_desc - key_string + 1)) {
type = &key_type_encrypted;
set_key = set_key_encrypted;
#endif
} else {
return -EINVAL;
}